JP2018033385A - combine - Google Patents

Abstract

In a combine, it is easy to secure sufficient strength at the front of the cabin, to improve visibility of a lower portion of the front of the cabin from an operator in the cabin, and to make the front of the cabin transparent such as glass. The safety of the worker is improved by preventing the worker's knee from contacting the part. A combine having a cabin that covers a driving unit and a driver's seat provided on a floor that constitutes the cabin, the combiner being laid on a vertical intermediate portion of a front portion of the cabin. A lateral support frame portion 70, an upper transparent portion 71 provided on the upper side of the lateral support frame portion 70 and constituting the front portion 41 of the cabin 40, and a lower portion provided on the lower side of the lateral support frame portion 70 41, the lower transparent portion 72, the handle portion 30 supported by the horizontal support frame portion 70, and the interior panel provided on the rear side of the horizontal support frame portion 70 and forming the hollow portion 130a together with the horizontal support frame portion 70. And a unit 130. [Selection diagram] FIG.

Description

  The present invention relates to a combine provided with a cabin that covers a driving part.

  Conventionally, in a combine equipped with a cabin that covers the operating part, a handle column (handle post) is erected on the front part of the floor as an operating floor that constitutes the cabin, and the handle is attached to the upper side of the handle column via a handle support shaft. And a driver's seat is arranged behind the steering wheel to form a driver.

  In a combine having such a configuration, Patent Document 1 and Patent Document 2 describe the front windshield of the cabin as a whole with a single transparent glass plate and a front portion of the floor. There is disclosed a configuration in which a handle column is provided at the center in the cabin width direction (left-right direction) at a position behind the windshield. Further, Patent Document 2 discloses a windshield constituted by upper and lower separate window portions. Here, the upper and lower window portions are joined to each other by a joining member formed of a material such as synthetic resin or rubber and having a substantially H-shaped cross section.

JP 2013-183683 A JP-A-9-215432

  Certainly, as disclosed in Patent Document 1 and Patent Document 2, according to the configuration in which the front portion of the cabin is entirely made of a glass plate, the range that can be visually recognized by the operator in the cabin is widened and the workability is improved. It is considered that the lighting performance in the cabin is improved. However, according to the conventional technology as described above, there are the following problems.

  First, for the configuration in which the front part of the cabin is entirely formed of a single glass plate, the entire front surface of the cabin is a single glass part, so that a sheet metal member or the like is part of the front part of the cabin. Compared to the case where it is used, it is difficult to obtain sufficient strength for the front portion of the cabin. In this regard, as described above, Patent Document 2 discloses a windshield that is configured by a separate window portion at the top and bottom, but a joining member in which the separate window portion is formed of a material such as rubber. In the case of the configuration where they are coupled to each other, it is unlikely that sufficient strength can be obtained at the coupling portions of the upper and lower window portions.

  Also, during a sudden turn or a sudden stop of the combine, an operator seated in the driver's seat in the cabin may be shaken forward with a disturbed posture. In the configuration in which the portion is entirely made of a glass plate, it is assumed that the operator's knee directly hits the windshield. When such a situation occurs, the windshield may be damaged in some cases.

  The present invention has been made in view of the problems as described above, and can easily ensure sufficient strength for the front portion of the cabin, and visibility of the cabin front lower part from the operator in the cabin. Another object of the present invention is to provide a combine that can improve the safety by preventing the operator's knee from contacting the transparent part such as glass constituting the front part of the cabin.

  A combine according to the present invention is a combine that includes a cabin that covers a driving portion, and that has a driver's seat on a floor portion that constitutes the cabin, and is horizontally supported by a vertical intermediate portion of a front portion of the cabin. A frame part, an upper transparent part provided on the upper side of the lateral support frame part and constituting the front part of the cabin, and a lower transparent part provided on the lower side of the lateral support frame part and constituting the front part of the cabin And a steering operation unit supported by the lateral support frame unit, and an interior panel unit provided on the rear side of the lateral support frame unit and constituting a hollow part together with the lateral support frame unit. It is.

  Moreover, the combine which concerns on the other aspect of this invention is the said combine. WHEREIN: The said steering operation part is provided in the left-right center part of the said horizontal support frame part, The said interior panel part is the said horizontal support frame part. Are provided on the left and right sides of the support portion of the steering operation portion.

  Moreover, the combine which concerns on the other aspect of this invention WHEREIN: In the said combine, the said interior panel part has a bulging shape which makes a back side the protrusion side.

  Moreover, the combine which concerns on the other aspect of this invention is the said combine. WHEREIN: The wiring with respect to the electrical component arrange | positioned in the said cabin is accommodated in the said hollow part.

  Moreover, the combine which concerns on the other aspect of this invention WHEREIN: In the said combine, the buffer member for buffering the impact from the said interior panel part side is provided in the said hollow part.

  Moreover, the combine which concerns on the other aspect of this invention is the said combine. WHEREIN: As for the said horizontal support frame part and the said interior panel part, the height position of the seat surface of the said driver's seat is within the range of the up-and-down width of the said interior panel part. It is provided so that it may be located in.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to ensure sufficient intensity | strength easily about the front part of a cabin, the visibility with respect to the cabin front lower part from the operator in a cabin can be improved, and also the front part of a cabin It is possible to improve the safety by preventing the operator's knee from coming into contact with the transparent portion such as glass.

It is a left view of the combine which concerns on one Embodiment of this invention. It is a right view of the combine which concerns on one Embodiment of this invention. It is a left view of the cabin concerning one embodiment of the present invention. It is a right view of the cabin concerning one embodiment of the present invention. It is a front view of the cabin concerning one embodiment of the present invention. It is a plane sectional view of the cabin concerning one embodiment of the present invention. It is a right side sectional view of the cabin concerning one embodiment of the present invention. It is a perspective view which shows the internal structure of the cabin which concerns on one Embodiment of this invention. It is a back exploded perspective view showing the structure of the cabin concerning one embodiment of the present invention. It is a front exploded perspective view showing the structure of the cabin concerning one embodiment of the present invention. It is explanatory drawing about the structure of the lower transparent part which comprises the cabin which concerns on one Embodiment of this invention. It is a perspective view which shows the support structure of the handle part which concerns on one Embodiment of this invention. It is a perspective view which shows the support structure of the handle part which concerns on one Embodiment of this invention. It is left side sectional drawing which shows the structure of the horizontal support frame part which concerns on one Embodiment of this invention. It is a perspective view which shows the support structure in the downward direction of the handle part which concerns on one Embodiment of this invention. It is a perspective view which shows the structure of the vicinity of the handle part which concerns on one Embodiment of this invention. It is a block diagram which shows the control structure of the combine which concerns on one Embodiment of this invention. It is explanatory drawing about the structure of the horizontal support frame part which concerns on one Embodiment of this invention, and an interior panel part. It is a figure which shows the structure of the modification of the structure of the cabin which concerns on one Embodiment of this invention. It is a figure which shows the other structural example of the structure of the cabin which concerns on one Embodiment of this invention.

  According to the present invention, in a combine provided with a cabin that covers a driving part, upper and lower transparent parts are provided between each other via a horizontal support frame part as a part constituting the front part of the cabin, and the horizontal support frame part is operated. The interior panel part which supports a direction operation part and comprises a hollow part with a horizontal support frame part is provided. With such a configuration, the present invention facilitates ensuring the strength of the front portion of the cabin, improves the visibility of the front lower portion of the cabin, and further, the operator's knee against the transparent portion constituting the front portion of the cabin. It is intended to improve the safety by preventing the contact. Embodiments of the present invention will be described below.

[Overall configuration of combine]
First, the whole structure of the combine 1 which concerns on this embodiment is demonstrated using FIG. 1 and FIG. In the following description, the left side and the right side of the combine 1 are referred to as the left side and the right side of the combine 1, respectively.

  As shown in FIG. 1 and FIG. 2, the combine 1 according to the present embodiment is a harvester capable of scraping harvested field crops into the machine body, threshing / selecting / grain storage, and appropriately transporting it outside the machine. As a normal combine. The combine 1 has the cutting part 3 provided in the front-end part of the traveling body 2 which can be self-propelled. The cutting unit 3 is attached to the traveling machine body 2 so as to be movable up and down.

  The traveling machine body 2 includes a traveling unit 4 configured as a crawler traveling device having a pair of left and right crawler units 5 and 5. A body frame 6 is installed between the left and right crawler portions 5 and 5. Each crawler portion 5 includes a plurality of rotating bodies including a driving sprocket 5a provided at a front end portion thereof, and crawler belts 5b wound around these rotating bodies.

  On the left side of the machine body frame 6, there are provided a threshing unit 7 for threshing cereals harvested by the reaping unit 3 and a selection unit 8 for selecting the grains threshed by the threshing unit 7. The threshing unit 7 and the sorting unit 8 are arranged in such a manner that the threshing unit 7 is an upper stage and the sorting unit 8 is a lower stage. Further, behind the threshing unit 7 and the sorting unit 8, there is provided a dust outlet 9 for discharging the sawdust and the like outside the machine. The dust outlet 9 opens the outlet to the rear. The dust etc. discharged | emitted by the dust exhaust port part 9 are dropped to a farming field as it is.

  On the machine body frame 6, on the right side of the threshing unit 7 and the sorting unit 8, a grain storage unit 10 that stores the grain (fresh grain) sorted by the sorting unit 8 is provided. On the rear side of the grain storage unit 10, there is provided a grain carry-out unit 14 that carries out the grains stored in the grain storage unit 10 to the outside of the machine.

  Further, on the machine body frame 6, the operation unit 12 covered with the cabin 40 is provided at a position in front of the grain storage unit 10, that is, a position of the right front part on the machine body frame 6. A motor unit 13 having an engine 11 or the like as a drive source is provided below the operation unit 12.

  The engine 11 is a diesel engine and is equipped with a diesel particulate filter (DPF) that is an exhaust gas purification device. The DPF collects particulate matter and the like mainly composed of black smoke in the exhaust gas discharged from the engine 11. The engine 11 purifies the exhaust gas by passing the exhaust gas through the DPF.

  The cutting unit 3 will be described. The cutting unit 3 includes a feeder house 21, a grain header 22, a cutting blade device 23, a pair of left and right weed bodies 24 and 24, and a take-up reel 25.

  The feeder house 21 is configured in a rectangular tube shape having the longitudinal direction in the front-rear direction in plan view. In the feeder house 21, a supply conveyor is provided. The grain header 22 has a horizontally long bucket shape, and is provided so as to communicate with the front end opening of the feeder house 21. In the grain header 22, a take-up auger (platform auger) 26 is provided. The take-in auger 26 is rotatably mounted with the left-right direction as a rotation axis direction.

  The cutting blade device 23 is provided at the front lower end edge of the grain header 22 and has a clipper shape. The pair of left and right weed bodies 24, 24 are provided so as to extend forward from the left and right side portions on the front side of the grain header 22. The take-up reel 25 is provided at a position above and in front of the grain header 22. The take-up reel 25 is supported rotatably between the distal end portions of a pair of left and right reel support arms 25a, 25a whose base end portions are pivotally supported by the grain header 22, with the left-right direction as the rotation axis direction. The take-up reel 25 continuously acts on the landing part of the culm while rotating, and rakes the crease part of the cereal to the side of the take-in auger 26. The power of the engine 11 transmitted through various transmission mechanisms is used for the operation of each part of the cutting unit 3.

  Further, the rear end portion of the feeder house 21 is supported by a cutting input shaft (feeder house conveyor shaft) provided at the front portion of the threshing portion 7 so that the left and right directions can be rotated. An elevating cylinder 27 is interposed between the lower surface portion of the feeder house 21 and the body frame 6. With such a configuration, the cutting unit 3 is provided so as to move up and down using the cutting input shaft as a rotation shaft by the expansion and contraction operation of the lifting cylinder 27.

  The combine 1 having the above-described configuration raises the cutting unit 3 to a desired height with respect to the ground (the cutting height of the harvested crop cereal) in the field, and travels in that state. Travel by Airframe 2. As a result, the combine 1 divides the harvested crops with the weed bodies 24, 24, and the cutting blade device 23 squeezes the groin portion of the cereal with the cutting blade device 23 while scrambling the slaughtering portion of the cereal with the scraping reel 25. reap.

  The cereal landing part cut at the desired cutting position is raked into the grain header 22 by the take-up auger 26 and passed through the feeder house 21 by the supply conveyor in the feeder house 21 to the threshing part 7. Supplied. The threshing part of the cereal meal supplied to the threshing unit 7 is threshed by the threshing unit 7. The grain that has been threshed by the threshing unit 7 is subjected to a sorting process by the sorting unit 8. The grain (clean grain) subjected to the sorting process by the sorting unit 8 is stored in the grain storage unit 10. The grain stored in the grain storage unit 10 is appropriately carried out of the machine by the grain carrying-out unit 14. And the sawdust etc. which were separated from the grain by the threshing unit 7 are discharged from the dust outlet 9 to the outside of the machine and discharged to the field.

[Configuration of operation unit and cabin]
The configuration of the operating unit 12 and the cabin 40 included in the combine 1 according to the present embodiment will be described with reference to FIGS. 3 to 11. The combine 1 according to this embodiment includes a cabin 40 that covers the driving unit 12, and a driver's seat 15 is provided on a floor 46 that constitutes the cabin 40.

  The operating unit 12 is provided in the cabin 40. A handle portion 30 as a steering operation portion is provided at the front portion of the operation portion 12. A driver seat 15 is provided behind the handle portion 30. Further, on the left side of the driver's seat 15 is provided a side operation unit 31 in which various operation tools and the like are disposed.

  The side operation unit 31 includes a side column 32 that extends in the front-rear direction in a plan view on the left side in the cabin 40. Various operation tools including a main speed change lever 34 and a sub speed change lever 35 as a speed change operation tool are disposed on the upper surface of the side column 32.

  The main transmission lever 34 is an operating tool for performing a shifting operation of the traveling machine body 2. The auxiliary transmission lever 35 is an operating tool for changing the speed of the auxiliary transmission mechanism 149 (see FIG. 17) included in the combine 1. The main transmission lever 34 and the sub transmission lever 35 are provided so as to be tiltable in the front-rear direction while rising from the upper surface of the side column 32. Note that various switches for performing operations related to the cutting unit 3, operations related to the threshing unit 7, operations related to vehicle speed control, and the like are disposed in the grip portion of the main transmission lever 34.

  The cabin 40 includes a front surface portion 41, a rear surface portion 42, a left side surface portion 43, a right side surface portion 44, a ceiling portion 45, and a floor portion 46, and is configured in a substantially box shape as a whole by these portions.

  The left side surface portion 43 of the cabin 40 has a lower side surface portion 47 which is a portion made of a sheet metal made of a steel plate or the like as a portion constituting the substantially lower half portion thereof. The lower side surface portion 47 has its front side portion aligned with the forward downward inclination of the substantially lower half of the front surface portion 41 (see FIG. 3).

  On the upper side of the lower side surface portion 47, a left front strut portion 48 located in the middle portion in the front-rear direction of the left side surface portion 43, and a left rear strut portion located behind the left front strut portion 48 and in the left rear corner portion of the cabin 40. 49 is provided. The left front column part 48 and the left rear column part 49 are both provided substantially parallel to each other with the vertical direction as the longitudinal direction.

  In the left side surface portion 43 of the cabin 40, a rectangular left rear window portion 51 having a longitudinal direction as a longitudinal direction is provided between the left front column portion 48 and the left rear column portion 49. The left rear window portion 51 is against a rectangular frame portion formed by the upper edge portion of the rear portion of the lower side surface portion 47, the left front strut portion 48, the left rear strut portion 49, and the rear portion of the ceiling portion 45. A transparent plate 52 such as a rectangular glass is attached.

  Further, a left front window 53 is provided on the left side 43 of the cabin 40 on the front side of the left front support 48. The left front window portion 53 has an inverted trapezoidal shape with the front side portion along the forward inclined shape of the substantially upper half of the front surface portion 41. The left front window portion 53 is opposite to the frame portion along the inverted front trapezoidal shape formed by the upper edge portion of the front portion of the lower side surface portion 47, the left front support portion 48, and the front portion of the ceiling portion 45. A transparent plate 54 such as trapezoidal glass is attached.

  The right side surface portion 44 of the cabin 40 has a right front column portion 55 erected at the front portion and a right rear column portion 56 erected at the rear portion. The right front column part 55 and the right rear column part 56 are both provided substantially parallel to each other with the vertical direction as the longitudinal direction. The right front strut portion 55 is provided over substantially the entire vertical direction of the cabin 40, and is located in front of the left front strut portion 48 of the left side surface portion 43 of the cabin 40 (see FIG. 4).

  The right front strut portion 55 includes a linear (equal width) upper column portion 55a that forms a majority portion on the upper side, and a lower column portion 55b that continues downward from the upper column portion 55a. The lower column part 55b has a substantially trapezoidal shape that is vertically long in a side view, with the side part on the front side being aligned with the downward slope of the substantially lower half of the front part 41. The front side portion of the lower column portion 55b is parallel to the front side portion of the lower side surface portion 47 constituting the left side surface portion 43 of the cabin 40 so as to overlap in side view. An open / close door 57 is provided between the right front column part 55 and the right rear column part 56.

  The open / close door 57 is supported by the support portions 58 provided at two positions above and below the right rear column portion 56 so as to be rotatable about the vertical direction as the rotation axis direction (see FIG. 4). The opening / closing door 57 allows the operator 16 to get on and off the cabin 40 from a closed position where the front edge is in contact with the door receiving portion provided on the right front column portion 55 with the support portion 58 as the rotation center. It is provided so as to rotate in a range up to an open position that is greatly open outward.

  The open / close door 57 is provided so as to constitute most of the right side surface 44 along the outer shape of the right side surface 44. The open / close door 57 has a configuration in which transparent plates 57a and 57b such as glass are stretched in a vertically divided manner on the outer side (right side) of the frame portion along the outer shape thereof, and substantially the whole is a transparent portion. A handle 59 is provided at a lower position on the front side of the open / close door 57.

  A right front window 60 is provided on the right side 44 of the cabin 40 on the front side of the upper column 55a of the right front column 55. The right front window portion 60 has an inverted triangular shape with the front side portion along the forward inclined shape of the substantially upper half of the front surface portion 41. The right front window portion 60 is a glass having an inverted triangle shape with respect to a frame portion that is formed by the front edge portion of the upper column portion 55a of the right front support column portion 55 and the front portion of the ceiling portion 45 and that is along the inverted open triangle shape. It is comprised by attaching the transparent plates 61, such as.

  The front surface portion 41 of the cabin 40 has a forward inclined front upper surface portion 41a that constitutes the upper majority portion thereof, and a front lower inclined front lower surface portion 41b that constitutes a substantially lower half portion of the front surface portion 41. And has a concave bent shape on the rear side as a whole. That is, the front upper surface portion 41a is inclined from the front side to the rear side from the upper side to the lower side, the front lower surface portion 41b is inclined from the upper side to the lower side from the rear side to the front side, and the front surface portion 41 is a side surface. It forms a substantially horizontal “V” shape as viewed (see FIGS. 3 and 4).

  Further, the upper end portion of the front surface portion 41 of the cabin 40, that is, the upper end portion of the front upper surface portion 41 a is located in front of the lower end portion of the front surface portion 41, that is, the lower end portion of the front lower surface portion 41 b. That is, the upper end side of the front surface portion 41 protrudes forward with respect to the lower end side. The forward inclined angle of the substantially upper half of the front surface portion 41 is, for example, about 20 ° with respect to the vertical direction. Moreover, the inclination | tilt angle of the front downward of the substantially lower half part of the front surface part 41 is about 10 degrees with respect to a perpendicular direction, for example.

  The front surface portion 41 has a lateral support frame portion 70 that is laid across the upper and lower intermediate portions. The lateral support frame portion 70 has a wide strip-like shape or a horizontally elongated substantially rectangular plate shape that extends in the left-right direction on the front face portion 41. The lateral support frame portion 70 is made of a metal member such as a steel plate. The lateral support frame portion 70 includes a front surface portion 70a that is a front plate surface portion and a rear surface portion 70b that is a rear plate surface portion.

  The lateral support frame portion 70 is provided along the upper edge portion of the front lower surface portion 41 b of the front surface portion 41. Specifically, as shown in FIGS. 9 and 10, the lateral support frame portion 70 includes an upper end portion of the front edge of the lower side surface portion 47 constituting the left side surface portion 43, and an upper end portion of the lower column portion 55 b of the right front strut portion 55. It is erected between the parts. The lateral support frame portion 70 has its front surface portion 70 a along the inclination of the front lower surface portion 41 b of the front surface portion 41 of the cabin 40.

  The front part 41 of the cabin 40 includes, as its constituent parts, an upper transparent part 71 provided on the upper side of the lateral support frame part 70 and a lower transparent part 72 provided on the lower side of the lateral support frame part 70.

  The upper transparent portion 71 is configured by extending a rectangular upper transparent plate 73 made of glass, acrylic resin, polycarbonate resin, or the like on the upper side of the lateral support frame portion 70 in the front surface portion 41 of the cabin 40. . The upper transparent plate 73 is slightly curved in the left-right direction so that the entire front side is a convex side (see FIG. 6).

  The upper transparent plate 73 extends in the left-right direction along the upper mounting edge 74 extending in the left-right direction at the front portion of the lower surface portion of the ceiling portion 45 of the cabin 40 and the upper edge of the lateral support frame portion 70. Each of the lower mounting edge portions 75 is fixed by a fixing tool 76 such as a bolt. That is, the upper transparent plate 73 is supported on the upper mounting edge 74 and the lower transparent edge is supported on the lower mounting edge 75 while the upper transparent plate 73 is supported on the upper transparent plate. It is fixed by a plurality of fixtures 76 penetrating the upper and lower edges of 73. In the present embodiment, the upper transparent plate 73 is fixed by the fixtures 76 at three places on the upper and lower edges, for a total of six places. The upper mounting edge 74 and the lower mounting edge 75 are slightly curved in the left-right direction so as to follow the minute curved shape of the upper transparent plate 73.

  The upper transparent portion 71 forms substantially the entire front upper surface portion 41 a of the front surface portion 41. That is, the upper transparent plate 73 constituting the upper transparent portion 71 is positioned below the upper mounting edge portion 74 and the upper mounting edge portion 74 so as to form substantially the entire front upper surface portion 41a that is an inclined surface portion. By being fixed to the lower mounting edge portion 75, it is stretched so as to be inclined forward.

  The lower mounting edge portion 75 to which the lower end portion of the upper transparent plate 73 is fixed is a band plate-like portion provided along the upper edge portion of the horizontal support frame portion 70 on the upper side of the horizontal support frame portion 70. . The lower mounting edge portion 75 is provided so as to follow the forward inclined shape of the upper transparent plate 73, and is provided so as to be bent together with the lateral support frame portion 70 in a side view with respect to the lateral support frame portion 70. It has been.

  As shown in FIGS. 8 and 10, on the left side of the upper transparent plate 73 constituting the upper transparent portion 71, there is an inverted trapezoidal transparent plate 54 constituting the left front window portion 53 in the left side surface portion 43 of the cabin 40. The front oblique side is provided so as to be aligned with the left side of the upper transparent plate 73 and to form a substantially right angle with the upper transparent plate 73 in plan view. Further, on the right side of the upper transparent plate 73, an inverted triangular transparent plate 61 constituting the right front window portion 60 in the right side surface portion 44 of the cabin 40 is arranged so that the front oblique side portion is aligned with the right side portion of the upper transparent plate 73. In addition, the upper transparent plate 73 and the upper transparent plate 73 are provided so as to form a substantially right angle in plan view. Accordingly, the upper transparent portion 71 of the front surface portion 41 of the cabin 40, the left front window portion 53 of the left side surface portion 43 of the cabin 40, and the right front window portion 60 of the right side surface portion 44 of the cabin 40, Consecutive transparent parts are formed facing the front, left, and right.

  The lower transparent portion 72 is configured by a substantially rectangular lower transparent plate 77 made of glass, acrylic resin, polycarbonate resin, or the like is stretched below the lateral support frame portion 70 in the front surface portion 41 of the cabin 40. ing. The lower transparent plate 77 is slightly curved in the left-right direction so that the entire front side is a convex side.

  The lower transparent plate 77 is fixed to a front surface portion 70a of the lateral support frame portion 70 and a front lower frame portion 78 provided on the front end side of the floor portion 46 of the cabin 40 by a fixing tool 79 such as a bolt. ing. That is, the lower transparent plate 77 is supported by the front surface portion 70a of the lateral support frame portion 70 and the lower edge portion of the lower transparent plate 77 is supported by the front lower frame portion 78. The plate 77 is fixed by a plurality of fixtures 79 penetrating the upper and lower edge portions. In the present embodiment, the lower transparent plate 77 is fixed by the fixtures 79 at three locations on the upper and lower edges, for a total of 6 locations. The front surface portion 70 a and the lower transparent plate 77 of the lateral support frame portion 70 are slightly curved in the left-right direction so as to follow the minute curved shape of the lower transparent plate 77.

  The mounting structure of the lower transparent plate 77 is as follows in detail. As shown in FIG. 10, in the front lower surface portion 41 b of the front surface portion 41 of the cabin 40, the front surface portion 70 a of the lateral support frame portion 70, the front end surface 47 a of the lower side surface portion 47 constituting the left side surface portion 43, and the right front column. The front end surface 55c of the lower column portion 55b of the portion 55 and the front surface 78a of the front lower frame portion 78 form a substantially flush mounting surface in the form of a rectangular frame that forms a rectangular opening 80. A lower transparent plate 77 is stretched on the frame-shaped mounting surface so as to close the opening 80 from the front side while supporting the upper, lower, left and right edges. In addition, on the back side of the lower transparent plate 77, a frame-shaped interposition plate 115 having an opening 115 a along the outer shape of the lower transparent plate 77 and along the opening shape of the opening 80 overlaps. That is, the interposed plate 115 is fixed to the frame-shaped mounting surface together with the lower transparent plate 77 by the fixture 79 while being sandwiched between the frame-shaped mounting surface and the lower transparent plate 77.

  As shown in FIGS. 10 and 11, inverted trapezoidal concave portions 77 a are formed in the left and right intermediate portions of the upper edge portion of the lower transparent plate 77. Therefore, in the lower transparent plate 77 along the rectangular outer shape, projecting portions 77b along a substantially trapezoidal shape with the right and left outer sides at substantially right angles are formed on the left and right sides of the upper end portion.

  Specifically, the concave portion 77a is formed by a horizontal lower side portion 77c at the central portion on the left and right sides, and an oblique side portion 77d having an outer height, an inner height, and a lower side that are continuous on the left and right sides of the lower side portion 77c. The protruding portion 77b includes a hypotenuse 77d that forms the recess 77a, an upper side 77e that is a horizontal side that is continuous to the left and right outer sides of the hypotenuse 77d, and serves as the upper end of the lower transparent plate 77, and It is formed by a side part perpendicular to the upper side part 77 e and a vertical side part 77 f which is the left and right side parts of the lower transparent plate 77. Thus, the lower transparent plate 77 having the protruding portions 77b on the left and right sides by the recesses 77a has a substantially “V” shape at the upper edge portion, and has a substantially left-right symmetrical shape as a whole.

  The lower transparent plate 77 overlaps the lateral support frame portion 70 with the left and right projecting portions 77b having a substantially “V” shape on the front side of the lateral support frame portion 70 with respect to the upper support portion. It is supported in the state of letting it. That is, as shown in FIG. 11, in the front view of the cabin 40, the upper left and right trapezoidal protrusions 77 b of the lower transparent plate 77 are trapezoidal portions corresponding to the protrusions 77 b of the interposed plate 115. Via the front surface portion 70a of the lateral support frame portion 70. In this manner, the upper end portion of the lower transparent plate 77 has the left and right protrusions 77b overlapped from the front side with respect to the lateral support frame portion 70 having a strip-like outer shape that is long in the left-right direction. It is supported by the horizontal support frame part 70 via.

  In such a support structure for the upper portion of the lower transparent plate 77, the vertical height H1 of the protruding portion 77b of the lower transparent plate 77 is substantially the same as the vertical width dimension of the horizontal support frame portion 70 (see FIG. 11). ). That is, the lower transparent plate 77 has an uneven shape due to the left and right intermediate recesses 77a and the left and right protruding portions 77b at the upper edge thereof, and the left and right protruding shapes with respect to the lateral support frame portion 70 in the vertical direction. The portion 77b is supported while having an overlapping portion of the vertical height H1. As described above, the lower transparent plate 77 is supported in a state where substantially the entire protruding portion 77 b is overlapped on the horizontal support frame portion 70. In FIG. 11, the lower transparent plate 77 is shown as a thin ink portion, and a portion that can be seen through the lower transparent plate 77 is shown as it is.

  A cover plate 81 is attached to the left and right intermediate portion of the front surface portion 70 a of the lateral support frame portion 70. The cover plate 81 covers the left and right intermediate portions of the support portion of the lower transparent plate 77 with respect to the horizontal support frame portion 70, and the intermediate portion of the upper edge portion of the lower transparent plate 77 is interposed between the cover plate 81 and the horizontal support frame portion 70. Yes. Details are as follows.

  The cover plate 81 is a substantially plate-like member having an inverted trapezoidal outer shape that is along the shape of the concave portion 77a of the lower transparent plate 77 and slightly larger than the size of the concave portion 77a. The cover plate 81 is attached in such a manner that the lower edge portion 77c and the oblique side portion 77d forming the concave portion 77a are overlapped with the lower side portion 77c and the oblique side portion 77d from the front side, and the concave portion 77a is covered from the front side. ing. That is, the edge along the lower edge 77 c and the oblique edge 77 d forming the recess 77 a in the lower transparent plate 77 is an overlapping portion with respect to the lower edge of the cover plate 81. As described above, a concave portion 77 a is formed along the inverted trapezoidal shape of the cover plate 81 at the left and right intermediate portions of the upper edge portion of the lower transparent plate 77 sandwiched between the horizontal support frame portion 70 and the cover plate 81. Note that the vertical dimension of the cover plate 81 is substantially the same as the vertical width of the lateral support frame portion 70. The cover plate 81 is fixed to the lateral support frame portion 70 and the like by a fixing tool such as a bolt (not shown).

  On the other hand, on the side of the horizontal support frame part 70, a projecting piece part 70c protruding in an inverted trapezoidal shape is formed at the left and right central part of the lower edge so as to follow the shape of the concave part 77a of the lower transparent plate 77. . The projecting piece 70c is a portion protruding downward with respect to the left and right side portions of the lateral support frame portion 70, and partially enlarges the vertical width of the left and right intermediate portion of the lateral support frame portion 70. Therefore, the projecting piece 70 c is located on the lower side of the cover plate 81.

  The projecting piece portion 70c is a portion that supports the upper edge portion of the lower transparent plate 77 as a part of the lateral support frame portion 70, and a fixing tool 79 that fixes the lower transparent plate 77 to the projecting piece portion 70c. The fixed part is located. Note that the interposed plate 115 that overlaps the rear side of the lower transparent plate 77 is also provided with an inverted trapezoidal protruding piece portion 115c that overlaps the protruding piece portion 70c.

  Further, between the lower transparent plate 77 and the frame-like mounting surface of the lower transparent plate 77 that forms the opening 80 as described above, it is made of a belt-like or linear elastic material along the outer shape of the lower transparent plate 77. A cushion member 82 is interposed. As the cushion member 82, a first cushion member 82 a that surrounds the entire opening 80 while having a substantially “M” -shaped portion in the upper portion along the outer shape of the lower transparent plate 77, and the first cushion member 82 a A substantially “V” -shaped second cushion member 82b is provided along the upper edge of the lower transparent plate 77 including the concave portion 77a.

  The lower transparent portion 72 configured by the lower transparent plate 77 having such a support structure constitutes most of the front lower surface portion 41 b of the front surface portion 41. In other words, the lower transparent plate 77 constituting the lower transparent portion 72 has the lateral support frame portion 70 and the lateral support so as to make most of the lower side of the lateral support frame portion 70 of the front lower surface portion 41b which is an inclined surface portion. By being fixed to the front lower frame part 78 located in the front lower part of the frame part 70, it is stretched so as to be inclined downward.

  The ceiling portion 45 of the cabin 40 includes an upper frame portion 83 configured in a substantially rectangular frame shape in plan view, and a housing portion 84 provided so as to entirely cover the upper frame portion 83. The ceiling portion 45 has a front edge portion protruding in a bowl shape with respect to the upper end portion of the front surface portion 41. A plurality of (in this embodiment, five) illumination units 85 are provided side by side on the front end surface of the ceiling 45.

  The floor portion 46 of the cabin 40 has a horizontal front floor portion 86 and a rear floor portion 87 formed in a bulging shape toward the front upper side with respect to the front floor portion 86. The rear floor portion 87 forms a substantially horizontal upper step surface portion 87 a on the upper rear side of the front floor portion 86. A driver seat 15 is provided on the upper step surface portion 87a. The driver's seat 15 has a seat portion 15a and a backrest portion 15b. The front floor portion 86 is a portion between the driver's seat 15 and the front surface portion 41 of the cabin 40 in the floor portion 46. And the part between the door receiving part of the right front support | pillar part 55 which supports the front edge part of the opening-and-closing door 57 in the floor part 46, and the front-end edge part of the driver's seat 15 is a passenger's boarding / alighting passage in the cabin 40 Thus, the space above the boarding / alighting passage becomes a boarding / alighting space for the worker.

  In the cabin 40 having the above-described configuration, the handle portion 30 provided in the operation portion 12 is supported by the lateral support frame portion 70. The handle | steering-wheel part 30 and its support structure are demonstrated using FIGS. 12-14.

  The handle portion 30 includes a steering wheel 91 as a steering operation tool, a wheel support shaft 92, and a support case 93. The steering wheel 91 includes an annular grip portion and is supported by a support case 93 via a wheel support shaft 92. A display device 94 having a liquid crystal monitor or the like is provided at the center of the steering wheel 91. In the cabin 40, a dual monitor 95 for displaying images from the back monitor camera and the auger monitor camera included in the combine 1 is provided on the upper right side of the steering wheel 91.

  In addition, a remote controller 114 for operating a discharge auger constituting the grain carry-out unit 14 is provided on the right side of the steering wheel 91. The remote controller 114 has, for example, a button for manually operating the discharge auger to turn left and right and changing the elevation angle, a button for automatically turning the discharge auger, and a grain discharge from the discharge auger. Various operation parts for operating the discharge auger such as a button for the purpose are provided. In the present embodiment, the remote controller 114 is of a wired type and is connected to a controller included in the combine 1.

  The handle portion 30 is provided in a state where it is supported by the left and right central portions of the lateral support frame portion 70. Specifically, as shown in FIGS. 9, 12, and 13, the handle portion 30 is formed between a pair of left and right handle support plate portions 96 projecting rearward from the rear surface portion 70 b of the lateral support frame portion 70. Since the portion of the support case 93 is supported, the horizontal support frame portion 70 is supported.

  The handle support plate portion 96 is a substantially rectangular plate-like portion with the left-right direction being the plate thickness direction, and is provided so as to protrude perpendicularly to the rear surface portion 70 b of the horizontal support frame portion 70. The pair of left and right handle support plate portions 96 are provided in parallel so as to face each other.

  The handle support plate portion 96 is provided by fixing a handle support body 97, which is a plate-like member bent in a substantially “L” shape, to the lateral support frame portion 70. The handle support 97 includes a fixed plate portion 97a that forms one side (surface portion) having a substantially “L” shape, and a support plate portion 97b that forms the handle support plate portion 96 that is the other side (surface portion). Have The handle support body 97 is fixed to the lateral support frame portion 70 by fixing the stationary plate portion 97a to the lateral support frame portion 70 from the rear surface portion 70b side with a bolt 99 in a direction in which the stationary plate portion 97a is left and right. It is fixed.

  The support case 93 of the handle portion 30 has left and right side surfaces 93a, 93a that are substantially planar, and each side surface 93a is opposed to the inner plate surface of the handle support plate portion 96 (support plate portion 97b). Each handle support plate 96 is supported by a support 101 such as a bolt. The left and right side dimensions of the left and right side surfaces 93 a and 93 a of the support case 93 are substantially the same as the dimensions between the left and right handle support plate portions 96.

  The support tool 101 passes through the upper front corner of the handle support plate portion 96 and is screwed into the support case 93 from the side surface 93 a to support the support case 93 with respect to the handle support plate portion 96. The left and right support tools 101, 101 are arranged on a common axis along the left-right direction. The support case 93 is supported between the left and right handle support plate portions 96 so as to be rotatable about a horizontal axis in which the left and right support tools 101 are located.

  The handle portion 30 tilts back and forth by rotating around the support position of the support case 93 by the support tool 101 with respect to the left and right handle support plate portions 96 (see FIG. 14, arrow A1), and the tilt position can be adjusted. It is configured. A mechanism for adjusting the tilt position of the front and rear of the handle portion 30 is as follows.

  As shown in FIGS. 12 and 13, a tilt support plate 102 is provided on the left and right outer sides (left side) of the handle support plate portion 96 on the left and right side (left side in the present embodiment). The tilt support plate 102 is a substantially triangular plate-like member, and is provided so as to overlap the left handle support plate portion 96. The tilt support plate 102 is rotatably supported with respect to the left handle support plate 96 by passing the left support 101 supporting the support case 93 through the top of the front upper side.

  On the other hand, the tilting support plate 102 is fixed to the support case 93 by a fastener 103 such as a bolt penetrating the upper top portion thereafter. That is, the fastener 103 passes through the tilt support plate 102, is screwed into the support case 93 from the left side surface 93 a, and supports the support case 93 with respect to the tilt support plate 102. With such a configuration, the tilting support plate 102 is provided so as to rotate integrally with the support case 93 around the support position by the support tool 101.

  Further, the lower end portion of the tilting support plate 102 is supported by a variable support portion 104 whose support position is variable with respect to the left handle support plate portion 96. The variable support portion 104 penetrates the tilt support plate 102 and the handle support plate portion 96, and a support shaft portion 105 that supports the tilt support plate 102 on the handle support plate portion 96, and for rotating the support shaft portion 105. And an operation lever 106.

  The support shaft portion 105 is provided in a state of being supported so as to be axially rotatable at a predetermined position with respect to the handle support plate portion 96, and by rotating the shaft, the tilt support plate 102 is attached to the handle support plate by a fastening action. The unit 96 is configured to be fixed. The support shaft portion 105 penetrates the tilt support plate 102 through a long hole 102 a formed in the lower end portion of the tilt support plate 102. The long hole 102a has a shape along an arc along the circumference centering on the support position of the support tool 101. The long hole 102a allows the tilt support plate 102 to rotate with respect to the handle support plate 96 around the support position of the support tool 101.

  The operation lever 106 is provided on the left and right outer sides (left side) of the tilt support plate 102 with respect to the support shaft portion 105. The operation lever 106 includes a cylindrical boss portion 106a that is fitted on the support shaft portion 105 and rotates integrally with the support shaft portion 105, and a lever main body portion 106b that extends from the outer peripheral surface of the boss portion 106a. . By rotating the operation lever 106 with the lever main body portion 106b, the support shaft portion 105 is rotated (axially rotated) integrally with the boss portion 106a.

  With the above configuration, the tilting support plate 102 can be rotated with respect to the handle support plate portion 96 by loosening the fastening action of the support shaft portion 105 by the operation of the operation lever 106, that is, the tilting support plate 102 and The support case 93 that rotates integrally is in a state of being rotatable about a support position by the support tool 101. In this state, the rotation position of the support case 93, that is, the tilt position of the handle portion 30 is adjusted. Then, after adjusting the tilt position of the handle portion 30, the support shaft portion 105 is rotated by the operation lever 106, and the tilt support plate 102 is fixed to the handle support plate portion 96 by the fastening action of the support shaft portion 105. As a result, the support case 93 is fixed to the handle support plate portion 96, and the handle portion 30 is fixedly supported.

  With the configuration as described above, the handle portion 30 is supported by the lateral support frame portion 70 that constitutes the front surface portion 41 of the cabin 40. And the handle | steering-wheel part 30 is comprised by the position adjustment mechanism containing the tilting support plate 102 so that the front-back tilt position can be adjusted.

  A portion of the handle portion 30 below the steering wheel 91 is accommodated in the steering case 110. The steering case 110 is provided on the rear side of the horizontal support frame portion 70 so as to cross the central portion of the horizontal support frame portion 70 in the vertical direction, and is shaped to bulge rearward with respect to the horizontal support frame portion 70. Have

  The steering case 110 has a case main body portion 111 that constitutes a substantially upper half portion thereof, and a lower case portion 112 that constitutes a substantially lower half portion thereof. The case main body 111 is formed in a substantially cylindrical shape, and has a substantially bilaterally divided two-part structure by the upper left case 111a and the upper right case 111b. The case body 111 is opened at the lower side, and the internal space of the engine 11 communicates with the internal space of the lower case portion 112. Each case part constituting the case main body part 111 is fixed to the support case 93 of the handle part 30 or the lateral support frame part 70 via a stay or the like, for example.

  The lower case portion 112 is configured by a case member having a substantially rectangular shape in rear view with the front side and the upper side opened. The lower case part 112 has a shape in which the upper part bulges rearward so as to form a substantially continuous form with respect to the case main body part 111, and the dimension in the front-rear direction is gradually reduced (thinned) from the upper side to the lower side. (See FIG. 14). That is, the lower case portion 112 includes a bulging portion 112a that constitutes the upper portion thereof, and a flat portion 112b that constitutes the lower portion of the lower case portion 112 continuously below the bulging portion 112a.

  A boundary portion between the case main body 111 and the lower case 112 is located substantially at the center of the vertical width of the lateral support frame 70 along a substantially horizontal plane. Thus, the steering case 110 is configured by the case main body 111 and the lower case 112, and from the upper part to the lower part, that is, from the case main body 111 to the bulging part 112a and the flat part 112b of the lower case part 112, It has a form that gradually reduces the amount of bulging to the rear side, and has a shape that narrows downward in side view.

  The upper end portion of the steering case 110, that is, the upper portion of the case main body portion 111 slightly protrudes from the upper edge of the lateral support frame portion 70. Further, the lower portion of the steering case 110, that is, the lower portion of the lower case portion 112 protrudes downward from the lower edge of the lateral support frame portion 70. In the steering case 110, the flat portion 112b of the lower case portion 112 protrudes in a rectangular shape from the lower edges of the left and right central portions of the lateral support frame portion 70 in a rear view. The operation lever 106 for adjusting the tilt position of the handle portion 30 is exposed to the outside from the left side surface portion of the bulging portion 112a of the lower case portion 112.

  As described above, the steering case 110 accommodates a portion below the steering wheel 91 of the handle portion 30 provided in a state of being lifted from the floor portion 46 of the cabin 40, that is, in a state of being cut off from the floor portion 46. It is provided in the state.

  Below the steering case 110, a footrest 120 is provided on the floor 46 for an operator who is seated in the driver's seat 15. The footrest 120 is for an operator seated on the driver's seat 15. The footrest 120 is provided at the front portion of the floor portion 46 of the cabin 40. The footrest 120 is provided at a position below the steering case 110 as described above, and is provided on the floor 46 at the center in the left-right direction of the front end of the floor 46. The footrest 120 has a plate-like footrest main body 120a that forms a mounting surface on which an operator's foot is placed.

  Further, a brake pedal 113 is provided at a position diagonally to the left of the footrest 120. The brake pedal 113 has a configuration in which a pedal main body is provided at the front end portion of the arm portion protruding from the right side surface of the side column 32 located on the left side of the driver's seat 15 and extending forward.

  A center post 121 is installed between the lateral support frame portion 70 and the footrest 120. The center post 121 is configured by a pipe-shaped member having an annular cross-sectional shape. The upper end of the center post 121 is supported by the lateral support frame portion 70, and extends downward from the lower end of the steering case 110. Is supported by the footrest 120. The support structure of the center post 121 will be specifically described.

  As shown in FIGS. 12 and 15, the upper end portion of the center post 121 is fixedly supported by the lateral support frame portion 70 via the post upper end portion support member 122. The post upper end support member 122 is constructed between the lower ends of the handle support 97 constituting the pair of left and right handle support plates 96 that support the support case 93 of the handle 30. A support surface portion 97 c for supporting the post upper end portion support member 122 is provided at the lower end portion of the handle support body 97. The support surface portion 97c is a plate-like portion having a plate thickness direction in a vertical direction that is bent at right angles from the lower end portion to the left and right sides with respect to the support plate portion 97b.

  As shown in FIG. 15, the post upper end support member 122 has a plate-like fixed plate portion 122a whose vertical direction is the plate thickness direction, and a right angle from the front end portion of the fixed plate portion 122a to the fixed plate portion 122a. This is a bent plate-like member having a vertical plate portion 122b bent downward and a cover support surface portion 122c extending rearwardly from the fixed plate portion 122a. A notch portion 122d for accommodating the center post 121 is formed at the left and right central portions of the fixed plate portion 122a and the vertical plate portion 122b.

  The post upper end support member 122 is fixed to the handle support 97 by a fixing tool 123 such as a bolt in a state where the fixing plate portion 122a is overlapped with the left and right support plate portions 97b from below. The center post 121 is welded to the post upper end support member 122 fixed to the left and right handle supports 97 in a state where the upper end of the center post 121 is inserted into the notch 122d from below. The post upper end support member 122 is fixed by, for example. Thus, the upper end portion of the center post 121 is fixed to the rear surface portion 70b side of the lateral support frame portion 70 via the post upper end portion support member 122 and the handle support body 97. In FIG. 13, the center post 121 and the post upper end support member 122 are not shown for convenience.

  Further, the post upper end support member 122 fixedly supports the lower case portion 112 constituting the steering case 110 by the cover support surface portion 122c. The cover support surface portion 122c is a rectangular plate-like portion that is long on the left and right with the front-rear direction being the plate thickness direction, and the rear plate surface is the support surface of the lower case portion 112. The lower case portion 112 is fixed to the cover support surface portion 122c by fasteners 124 such as two bolts on the left and right sides. The fastener 124 passes through the through holes 112c formed on the left and right sides of the upper portion of the lower case portion 112, and is a nut member disposed on the front side of the cover support surface portion 122c in a state of passing through both the left and right ends of the cover support surface portion 122c. And is screwed into and fastened.

  The lower case portion 112 is also fixedly supported to a cover support stay 125 provided in the middle portion of the center post 121. The cover support stay 125 includes a horizontal support surface portion 125a that extends horizontally from the rear side of the center post 121, and a vertical support surface portion that is provided at a right angle from the rear end of the horizontal support surface portion 125a to the horizontal support surface portion 125a. 125b and a substantially “L” -shaped bent plate-like member. The cover support stay 125 is fixed to the center post 121 by welding or the like in a state in which the outer peripheral surface portion on the rear side of the center post 121 is received in a concave cutout portion 125c formed in the lateral support surface portion 125a.

  The vertical support surface portion 125 b is a rectangular plate-shaped portion whose front-rear direction is the plate thickness direction, and the rear plate surface is the support surface of the lower case portion 112. The lower case portion 112 is fixed to the vertical support surface portion 125b by a fastener 126 such as a bolt. The fastener 126 passes through a through hole 112d formed in the lower portion of the lower case portion 112, and is screwed and fastened to a nut member disposed on the front side of the vertical support surface portion 125b in a state of passing through the vertical support surface portion 125b. .

  As described above, the lower case portion 112 has two places on the left and right with respect to the cover support surface portion 122c of the post upper end support member 122, and one place on the cover support stay 125 fixed to the center post 121, for a total of three places. Fixedly supported.

  The center post 121 as a whole is inclined in a front-down direction with respect to the vertical direction in a side view, the upper half 121a having a relatively large inclination angle with respect to the vertical direction, and a cabin with a relatively small inclination angle with respect to the vertical direction. 40 has a bent shape formed by the lower half portion 121b arranged along the inclination of the front lower surface portion 41b. The center post 121 has a bent portion located in the lower case portion 112, and a lower half portion 121b extending downward from the lower case portion 112. The cover support stay 125 that supports the lower case portion 112 is provided at the upper end portion of the lower half portion 121 b that is in the vicinity of the bent portion of the center post 121.

  As shown in FIGS. 8, 9, and 10, the lower end portion of the center post 121 is fixedly supported by a support base portion 120 b that constitutes the footrest 120 via a post lower end portion support member 127.

  The support base 120b of the footrest 120 is a portion that rotatably supports the footrest main body 120a, and is supported and fixed to a member constituting the floor portion 46 of the cabin 40. The support base portion 120b has left and right side portions and a rear portion, and is configured in a substantially “U” shape with the front side being an open side in a plan view.

  As shown in FIG. 15, the post lower end support member 127 is a substantially box-shaped member having left and right side surface portions 127a and 127a, a front surface portion 127b, and an upper surface portion 127c. The post lower end support member 127 is fixed to the support base 120b with bolts or the like while being interposed between the left and right side surfaces of the support base 120b of the footrest 120.

  A notch-like insertion portion 127d having a front side as an open side is formed at the front left and right center portion of the post lower end support member 127 as a portion for receiving the lower end portion of the center post 121. The insertion portion 127d includes an arc-shaped cutout portion that is formed on the front side of the upper surface portion 127c and extends along the outer peripheral surface portion of the center post 121, and a cutout portion that bisects the front surface portion 127b to the left and right. The post lower end support member 127 is fixed to the center post 121 by welding or the like in a state where the rear end portion of the center post 121 is received in the insertion portion 127d.

  As described above, the upper end portion of the center post 121 is fixedly supported by the lateral support frame portion 70 via the post upper end portion support member 122 and the handle support body 97. Further, the lower end portion of the center post 121 is fixedly supported by a support base portion 120 b constituting the footrest 120 via a post lower end portion support member 127.

  Moreover, in the combine 1 which concerns on this embodiment, the interior panel part 130 is provided with respect to the horizontal support frame part 70. As shown in FIG. The interior panel part 130 is provided on the rear side of the lateral support frame part 70 and constitutes a hollow part 130 a together with the lateral support frame part 70.

  The interior panel part 130 is configured by attaching an interior panel body 131 to the rear side of the lateral support frame part 70. The interior panel body 131 is a plate-like member whose longitudinal direction is the left-right direction, and has a vertical dimension that is the short direction of the interior panel body 131 that is substantially the same as the width dimension (the vertical dimension) of the lateral support frame portion 70. . The interior panel body 131 is a resin molded member formed by injection molding using, for example, a synthetic resin such as PP (polypropylene).

  The interior panel part 130 forms a space with the lateral support frame part 70 as a longitudinal direction in the left-right direction which is the extending direction of the lateral support frame part 70. That is, the horizontal support frame portion 70 and the interior panel portion 130 constitute a hollow pipe-like frame portion having a substantially closed cross-sectional shape (substantially annular) in the cross section.

  In the present embodiment, as described above, the handle portion 30 is provided at the left and right center portion of the lateral support frame portion 70. In such a configuration, the interior panel portion 130 is provided on both the left and right sides of the support portion of the handle portion 30 with respect to the lateral support frame portion 70.

  That is, in the present embodiment, as the interior panel portion 130, the left interior panel portion 130L disposed on the left side of the steering case 110 that covers the support portion of the handle portion 30 with respect to the lateral support frame portion 70, and the right side of the steering case 110 are disposed. The right interior panel portion 130R is provided. The left interior panel portion 130L is configured by attaching the left interior panel body 131L, and the right interior panel portion 130R is configured by attaching the right interior panel body 131R. The left and right interior panel portions 130 (130L, 130R) are configured substantially symmetrically.

  The left and right interior panel portions 130 are provided over substantially the entire left and right outer portions of the steering case 110 provided at the left and right center portions of the lateral support frame portion 70, respectively. That is, the left interior panel portion 130 </ b> L is provided along the lateral support frame portion 70 over the entire portion on the left side of the steering case 110 of the lateral support frame portion 70. The right interior panel portion 130 </ b> R is provided along the lateral support frame portion 70 over the entire portion on the right side of the steering case 110 of the lateral support frame portion 70.

  Accordingly, the left-side interior panel body 131L is provided in such a manner that it is interposed between the left side surface portion of the steering case 110 and the front right end portion of the decorative plate portion 32a provided from the front side to the left side of the upper surface portion of the side column 32. It has been. Further, the right interior panel body 131 </ b> R is provided in a mode of being interposed between the right side surface portion of the steering case 110 and the left side surface portion of the upper and lower middle portion of the right front column portion 55.

  In this manner, the steering case 110 protrudes rearwardly from the interior panel 130 provided on the left and right sides with the steering case 110 interposed therebetween. That is, between the left and right interior panel portions 130 on the rear side of the lateral support frame portion 70, the steering pipe 110 causes the hollow pipe-shaped frame portion constituted by the lateral support frame portion 70 and the interior panel portion 130 to move up and down. The left and right wide ridge portions are configured in such a manner as to cross the direction.

  The interior panel portion 130 has a bulging shape with the rear side as a protruding side. Specifically, the interior panel section 130 has a shape that bulges so that the rear side is a projecting side in a cross section as shown in FIG. That is, the interior panel part 130 has a curved shape with the rear side as the protruding side in the vertical direction.

  Specifically, as shown in FIGS. 9 and 16, the interior panel body 131 constituting the interior panel unit 130 is a plate-like member having a longitudinal direction in the left-right direction, and as a part constituting the main part thereof, It has a bulging portion 131a with the rear side as a protruding side. A flat plate-like lower edge flat plate portion 131b constituting the lower edge portion of the interior panel body 131 is provided below the bulging portion 131a. The lower edge flat plate portion 131b extends downward from the bulging portion 131a in the cross-sectional shape, and is a strip-like portion having the front-rear direction as the plate thickness direction. In addition, a front bent plate portion 131c constituting an upper surface portion of the interior panel body 131 is provided from the upper end portion of the bulging portion 131a. The front bent plate portion 131c is bent and formed at a substantially right angle forward with respect to the bulging portion 131a, and is a plate-like portion having a substantially vertical direction as a plate thickness direction.

  The interior panel body 131 is fixed to the upper support stay 132 and the lower support stay 133 provided on the rear surface part 70b side of the horizontal support frame part 70, and is attached to the horizontal support frame part 70 (see FIG. 14). ). The upper support stay 132 and the lower support stay 133 are provided corresponding to the left and right interior panel bodies 131 on the left and right sides of the lateral support frame portion 70, respectively.

  The upper support stay 132 is provided along the upper edge portion of the horizontal support frame portion 70, and is configured to have a substantially “U” shape with the front side as an open side in a cross-sectional view (FIG. 14). reference). The upper support stay 132 has an upper surface portion 132a that is a plate-like portion whose substantially vertical direction is the plate thickness direction.

  The lower support stay 133 is provided along the lower edge portion of the horizontal support frame portion 70, and is configured to have a substantially “L” shape in a cross sectional view. The lower support stay 133 includes a lateral surface portion 133a provided perpendicular to the rear surface portion 70b of the lateral support frame portion 70, and a lateral surface portion from the rear end portion of the lateral surface portion 133a. And a vertical surface portion 133b provided at a right angle to 133a.

  The interior panel body 131 is fixedly supported on the upper support stay 132 and the lower support stay 133 as follows. The interior panel body 131 is fixed to the upper support stay 132 by, for example, a bolt that penetrates the front bent plate portion 131c and the upper support stay 132 from the upper side with respect to the upper surface portion 132a. It is fixed by the tool 134. Fixing portions by the fixing tool 134 are provided at two places on the left and right.

  On the other hand, for the lower support stay 133, the interior panel body 131 overlaps the vertical surface portion 133b with the lower edge flat plate portion 131b from the rear side, and bolts or the like penetrating the vertical surface portion 133b and the lower edge flat plate portion 131b. The fixing tool 135 is used. The fixing parts by the fixing tool 135 are provided at two places on the left and right.

  As described above, the left and right interior panel bodies 131 are attached to the lateral support frame portion 70 by the upper support stay 132 and the lower support stay 133, respectively. In addition, the interior panel body 131 constitutes a hollow portion 130a together with the horizontal support frame portion 70 in a state of being attached to the horizontal support frame portion 70, and bulges 131a with respect to the flat horizontal support frame portion 70. Thus, it has a bulging shape with the rear side as the protruding side. As shown in FIG. 14, the opening portion on the front side (left side in FIG. 14) of the upper support stay 132 is a lower mounting edge portion that supports the lower edge portion of the upper transparent plate 73 constituting the front surface portion 41 of the cabin 40. 75. Thus, on the left and right sides of the steering case 110, the lateral direction is defined as the longitudinal direction by the lateral support frame portion 70, the lower mounting edge portion 75 provided along the upper edge portion, and the interior panel portion 130. A hollow frame portion is formed.

  A right switch disposition portion 131d including an opening for disposing a key switch 136 for starting or stopping the engine 11 is provided in the right interior panel body 131R constituting the right interior panel portion 130R. The right switch arrangement portion 131d is provided at the right end of the right interior panel body 131R.

  The key switch 136 is a power application switch provided in a connection path between the engine controller that controls the engine 11 and the battery. The key switch 136 is supported by a lower support stay 133 to which the right interior panel body 131R is attached via a plate-like support stay 136a.

  On the other hand, the left interior panel body 131L constituting the left interior panel section 130L is provided with a left switch arrangement section 131e including an opening for arranging each of the regeneration switch 137 and the combination switch 138. The left switch placement portion 131e is provided at a position closer to the left side of the left interior panel body 131L.

  The regeneration switch 137 is a switch for selecting whether to execute the DPF mounted on the engine 11 as described above. The regeneration switch 137 is a switch with a lamp, and blinking of the lamp notifies the operator that the DPF is clogged. When the regeneration switch 137 is turned on, the regeneration of the DPF is executed, and particulate matter or the like in the DPF is burned. The operator is notified that the regeneration of the DPF is being performed by turning on the regeneration switch 137.

  The combination switch 138 is an operation tool including a horn button for sounding a horn, a flasher switch for blinking a direction indicator, and a light switch for turning on / off illumination. A horn button is provided at the center of the combination switch 138, and a flasher switch and a light switch are provided around the combination switch 138 as a substantially rectangular parallelepiped rotation operation unit.

  As described above, the left and right interior panel sections 130 are provided with various operation sections such as the key switch 136 and the reproduction switch 137. That is, a shape part for installing an operation unit such as a key switch 136 is provided in the interior panel body 131 constituting each interior panel unit 130 according to the form of each operation unit. Various operation units are installed in a manner that can be operated from the surface side of the interior panel unit 130.

  Further, in the hollow pipe-shaped frame portion constituted by the lateral support frame portion 70 and the interior panel portion 130, wiring for electrical components disposed in the cabin 40 is accommodated in the hollow portion 130a.

  Here, the hollow part 130 a formed by the interior panel part 130 attached to the lateral support frame part 70 communicates with the internal space of the steering case 110. Specifically, a substantially rectangular notch 112e is formed at the front edge of the lower case portion 112 of the steering case 110 (see FIG. 14). An opening 110a is formed between the lower case portion 112 and the lateral support frame portion 70 by the notch portion 112e, and the hollow portion 130a and the internal space of the steering case 110 communicate with each other through the opening portion 110a.

  In such a configuration, the hollow portions 130a provided on the left and right sides of the steering case 110 may be individually used as wiring storage spaces, and at least one of the left and right hollow portions 130a may be used as the steering case 110. The internal space may be used as a continuous wiring storage space. Accordingly, the wiring accommodated in the hollow portion 130a includes those that are independently accommodated in the left and right hollow portions 130a, those that are continuously extended from the internal space of the steering case 110, and the like. Is included.

  The wiring accommodated in the hollow portion 130a includes power distribution wires, communication cables, and the like for various electrical components such as electric machines, electronic devices, and electrical components. As the wiring accommodated in the hollow portion 130a, for example, as shown in FIG. 5, the wiring 136w connected to the key switch 136 disposed on the interior panel body 131 as described above, and the reproduction switch 137 are connected. Examples thereof include a wiring 137w, a wiring 138w connected to the combination switch 138, a wiring 114w connected to the remote controller 114, and the like. As described above, the wirings extending from the respective components of the key switch 136, the regeneration switch 137, and the combination switch 138 as electrical components are accommodated in the hollow portion 130a.

  As described above, in the combine 1 according to the present embodiment, the horizontal support frame portion 70 that is horizontally provided in the upper and lower intermediate portions of the front surface portion 41 of the cabin 40 and the left and right central portions on the rear surface side of the horizontal support frame portion 70 are provided. By the provided steering case 110 and the left and right interior panel portions 130, an integrally horizontal portion extending in the left-right direction between the upper transparent portion 71 and the lower transparent portion 72, and this A substantially “T” -shaped structure having a downward projecting portion is formed at the center of the horizontal portion, and the steering wheel 91 of the handle portion 30 is disposed above the left and right center of the structure. (See FIG. 8). And the horizontal part in said structure is comprised in hollow shape, and various wirings, such as an electric wire and a communication line, are accommodated in the hollow part 130a.

  With such a configuration, the cabin 40 according to the present embodiment allows various wirings to be compactly gathered and concentrated, and protected by a member such as the interior panel body 131 to reduce exposure to the outside while being transparent. Combined with the entire transparent configuration of the front portion 41 of the cabin 40 by the portion 71 and the lower transparent portion 72, the front portion 41 of the cabin 40 has a clean appearance across the entire top and bottom.

  Here, a control configuration related to the shift steering control of the traveling machine body 2 performed by operating the steering wheel 91 of the handle portion 30 will be described with reference to FIG.

  As shown in FIG. 17, the combine 1 includes a controller 140 for performing the overall control. The controller 140 exchanges data with a CPU that executes various arithmetic processes and controls, a PROM as a storage means for storing control programs and data, a RAM for temporarily storing control programs and data, sensors, actuators, and the like. Input / output interface and the like.

  The combine 1 includes a steering position sensor 141 as a turning detection unit that detects a rotation operation angle (operation amount) of the steering wheel 91. The steering position sensor 141 is provided at the lower end portion of the wheel support shaft 92 that constitutes the handle portion 30, and is housed in the support case 93. The combine 1 also includes a main shift position sensor 142 that detects a forward / backward rotation operation position (operation amount) of the main shift lever 34. The main transmission position sensor 142 is provided in the vicinity of the main transmission lever 34 in the side column 32. The combine 1 also has a sub-shift position sensor 143 that detects a front-rear rotation operation position (operation amount) of the sub-shift lever 35. The auxiliary transmission position sensor 143 is provided in the vicinity of the auxiliary transmission lever 35 in the side column 32.

  The steering position sensor 141, the main shift position sensor 142, and the sub shift position sensor 143 are electrically connected to the controller 140, and information detected by each sensor is appropriately input to the controller 140. The steering position sensor 141, the main transmission position sensor 142, and the auxiliary transmission position sensor 143 are, for example, a rotary encoder, a rotary potentiometer, or the like.

  In the combine 1, a steer-by-wire operation structure is adopted as an operation structure of the steering wheel 91, the main transmission lever 34, and the auxiliary transmission lever 35.

  In the steer-by-wire system, the operation amount of the steering wheel 91 detected by the steering position sensor 141 is converted into an electric signal and transmitted to the controller 140 as detection information. Further, the operation amount of each shift lever of the main shift lever 34 and the sub shift lever 35 detected by the respective sensors of the main shift position sensor 142 and the sub shift position sensor 143 is converted into an electric signal and is detected as detection information to the controller 140. Sent. The controller 140 that has acquired detection information from the steering position sensor 141, the main shift position sensor 142, and the sub shift position sensor 143 generates control information based on the detection information, and based on the generated control information, the combine 1 Controls the running means provided.

  The traveling means of the combine 1 is a means for causing the traveling machine body 2 to travel, and is controlled by the controller 140. The traveling means of the combine 1 has a traveling HST 146 for performing a traveling shift and a steering HST 147 for performing a steering operation. Here, “HST” is a hydraulic continuously variable transmission that employs a system in which hydraulic pressure generated by driving a hydraulic pump is converted again into rotational force by a hydraulic motor. The controller 140 inputs the generated control information to the traveling HST 146 and the steering HST 147, and drives and controls the traveling HST 146 and the steering HST 147 based on the control information. By the drive control of each HST by the controller 140, the traveling machine body 2 travels straight, turns, spins, and the like.

  The travel HST 146 includes a variable displacement travel pump 146P and a variable displacement travel motor 146M as fluidly connected to each other. The traveling HST 146 includes a traveling pump electromagnetic valve 146a corresponding to the traveling pump 146P, a traveling motor electromagnetic valve 146b corresponding to the traveling motor 146M, and an output shaft 146c. In the traveling HST 146, adjustment driving (traveling drive adjustment) of the traveling pump 146P is performed via the traveling pump electromagnetic valve 146a while receiving power from the engine 11. The drive of the travel motor 146M by the adjustment drive of the travel pump 146P is transmitted to the output shaft 146c.

  The combine 1 includes a transmission mechanism 148 for transmitting a driving force to the pair of left and right crawler units 5 and 5 constituting the traveling unit 4. The transmission mechanism 148 includes a planetary gear group and the like. The transmission mechanism 148 includes a left first output shaft 148a and a right second output shaft 148b as left and right output shafts. In the transmission mechanism 148, the input driving force is output to the left and right first output shafts 148a and second output shafts 148b via the planetary gear group or the like. The first output shaft 148a and the second output shaft 148b transmit driving force to a driving sprocket 5a (see FIG. 1) that is a driving wheel of the corresponding crawler unit 5, respectively. As a result, the crawler unit 5 is driven to travel. The combine 1 also includes a sub transmission mechanism 149 operated by the sub transmission lever 35. The output shaft 146 c of the traveling HST 146 is interlocked and connected to the transmission mechanism 148 via the auxiliary transmission mechanism 149.

  In such a configuration, the traveling pump electromagnetic valve 146a is basically controlled by the control information from the controller 140 based on the detection information of the main transmission position sensor 142 by the operation of the main transmission lever 34, and the traveling pump 146P and Power is transmitted from the output shaft 146c to the transmission mechanism 148 by drive control of the travel motor 146M. At this time, the subtransmission mechanism 149 is controlled based on control information from the controller 140 based on information detected by the subtransmission position sensor 143 by operating the subtransmission lever 35.

  Therefore, by operating the main transmission lever 34, the power of the engine 11 is transmitted to the output shaft 146c through the main transmission position sensor 142 and the controller 140 through the traveling pump 146P and the traveling motor 146M. When power is transmitted to the output shaft 146c of the traveling HST 146, the first output shaft 148a and the second output shaft 148a are connected to the output shaft 146c via the various planetary gear groups in the transmission mechanism 148 linked to the output shaft 146c via the auxiliary transmission mechanism 149. A driving force is transmitted to the output shaft 148b, and these output shafts are rotationally driven in the same direction.

  That is, the rotational drive control of the traveling HST 146 is performed based on the control information from the controller 140 by the operation of the main speed change lever 34, and the first output shaft 148a and the second output shaft 148b are transmitted via the planetary gear group of the transmission mechanism 148. Drive control is performed. Thereby, the forward rotation or reverse rotation of both output shafts is performed, and the front and rear straight traveling is performed by the left and right crawler portions 5 and 5.

  The steering HST 147 includes a variable displacement steering pump 147P and a variable displacement steering motor 147M as fluidly connected to each other. Further, the steering HST 147 includes a steering pump electromagnetic valve 147a corresponding to the steering pump 147P and an output shaft 147c. In the steering HST 147, adjustment drive (steering drive adjustment) of the steering pump 147P is performed via the steering pump electromagnetic valve 147a while receiving power from the engine 11. The drive of the steering motor 147M by the adjustment drive of the steering pump 147P is transmitted to the output shaft 147c. The output shaft 147 c of the steering HST 147 is linked to the transmission mechanism 148 via the clutch device 150.

  In such a configuration, the steering pump electromagnetic valve 147a is basically controlled by the control information from the controller 140 based on the detection information of the steering position sensor 141 by the operation of the steering wheel 91, and the steering pump 147P. Power is transmitted from the output shaft 147c to the transmission mechanism 148 by driving control of the steering motor 147M.

  Therefore, by operating the steering wheel 91, the power of the engine 11 is transmitted to the output shaft 147c via the steering position sensor 141 and the controller 140 via the steering pump 147P, the steering motor 147M, and the like. When power is transmitted to the output shaft 147c of the steering HST 147, the first output shaft 148a and the second output shaft 148a are connected to the output shaft 147c via the various planetary gear groups in the transmission mechanism 148 linked to the output shaft 147c via the clutch device 150. A driving force is transmitted to the output shaft 148b, and these output shafts are driven to rotate in directions opposite to each other.

  That is, the rotational drive control of the steering HST 147 is performed based on the control information from the controller 140 by the operation of the steering wheel 91, and the first output shaft 148a and the second output shaft 148b are transmitted via the planetary gear group of the transmission mechanism 148. Drive control is performed. As a result, the output shafts that are opposite to each other are rotated forward or backward, and the crawler units 5 and 5 are turned or spin-turned. Note that the left and right turn of the left and right spin turn and the left and right spin turn are classified according to the control information from the controller 140 based on the detection information of the steering position sensor 141 that detects the left and right rotation of the steering wheel 91 and the steering pump 147P. This is done by controlling the direction motor 147M.

  As described above, the combine 1 according to the present embodiment adopts the steer-by-wire system, and electrically operates the traveling HST 146, the steering HST 147, and the like by operating the steering wheel 91, the main transmission lever 34, and the auxiliary transmission lever 35. While controlling, mechanical power transmission of the transmission mechanism 148 and the like is performed, and the traveling unit 4 having a pair of crawler units 5 and 5 is configured to perform forward and backward traveling, turning traveling, spin turning, and the like. ing.

  As described above, the combine 1 according to the present embodiment is provided on the upper side of the horizontal support frame portion 70 and the horizontal support frame portion 70 that is horizontally mounted on the upper and lower intermediate portions of the front surface portion 41 of the cabin 40. An upper transparent portion 71 constituting the front surface portion 41, a lower transparent portion 72 constituting the front surface portion 41 of the cabin 40, and a handle portion supported by the lateral support frame portion 70. 30. In such a configuration, the combine 1 includes an interior panel portion 130 that forms a hollow portion 130 a together with the lateral support frame portion 70 on the rear side of the lateral support frame portion 70.

  In the combine 1 according to this embodiment, the horizontal support frame portion 70 and the interior panel portion 130 are provided so that the height position of the seat surface of the driver's seat 15 is within the range of the vertical width of the interior panel portion 130. It has been. That is, as shown in FIG. 18, the height position X1 of the seat surface of the driver's seat 15 is located within the range of the vertical width Y1 of the interior panel portion 130, and the hollow portion 130a is formed so that this positional relationship is satisfied. A lateral support frame portion 70 and an interior panel portion 130 are provided.

  Here, the height position X1 of the seat surface of the driver's seat 15 is a height position of a predetermined part on the upper surface of the seat portion 15a of the driver's seat 15. The height position X1 of the seat surface of the driver's seat 15 is, for example, the highest position on the upper surface of the seat portion 15a. The vertical width Y1 of the interior panel portion 130 is the vertical dimension of the interior panel portion 130, and is the length from the upper end to the lower end of the interior panel portion 130. Therefore, the range of the vertical width Y1 of the interior panel portion 130 means the height position of the upper surface of the front bent plate portion 131c of the interior panel body 131 constituting the interior panel portion 130 and the height of the lower end of the lower edge flat plate portion 131b. It means between the positions.

  Thus, the combine 1 which concerns on this embodiment is the structure in the cabin 40, and the height position of the seat surface of the driver's seat 15 is the upper and lower sides of the interior panel part 130 which forms the hollow part 130a with the horizontal support frame part 70. The structure located in the range of the width is provided. In other words, the lateral support frame portion 70 and the interior panel portion 130 are provided on the forward extension line of the seat surface of the driver seat 15.

  In addition, it is preferable that the height position of the seat surface of the driver's seat 15 is a height position corresponding to the upper and lower central portions of the interior panel portion 130. Further, when the driver's seat 15 has a structure in which the height position of the seat surface can be adjusted, if any height position within the adjustment range is within the range of the vertical width of the interior panel portion 130. Good. In this case, for example, the lateral support frame portion 70 and the interior panel portion 130 are provided so that the center height position within the adjustment range of the seat surface height coincides with the position of the center of the interior panel portion 130 in the vertical direction. .

  According to the combine 1 according to the present embodiment having the above-described configuration, sufficient strength can be easily secured for the front surface portion 41 of the cabin 40, and the cabin front from the operator 16 in the cabin 40 can be secured. The visibility with respect to the lower part can be improved, and the contact of the knee of the operator 16 with the transparent part such as glass constituting the front surface part 41 of the cabin 40 can be prevented to improve the safety. The fact that such an effect can be obtained will be specifically described.

  The combine 1 according to the present embodiment includes the upper transparent portion 71 and the lower transparent portion 72 above and below the front surface portion 41 of the cabin 40 via the lateral support frame portion 70 so that the front surface portion 41 is entirely transparent. In addition, the handle panel 30 is supported by the lateral support frame part 70, and the interior panel part 130 that forms the hollow part 130 a together with the lateral support frame part 70 is provided on the rear side of the lateral support frame part 70.

  According to such a configuration, the upper transparent plate 73 constituting the upper transparent portion 71 and the lower transparent plate 77 constituting the lower transparent portion 72 interpose the lateral support frame portion 70 therebetween, and each transparent plate Is supported by the lateral support frame portion 70, the front portion 41 of the cabin 40 can be easily secured with sufficient strength. That is, since the front part 41 of the cabin 40 has a vertically divided structure with the upper transparent part 71 and the lower transparent part 72 with the lateral support frame part 70 interposed therebetween, the front part of the cabin is single. The strength can be easily ensured as compared with the case of being made of a transparent body.

  In addition, since a wide transmission range from the cabin 40 to the outside can be secured, good visibility can be obtained for the front and lower front portions in the cabin 40, and the daylighting performance in the cabin 40 can be improved to improve the cabin 40. The inside can be brightened. Moreover, the interior of the cabin 40 can be made to feel wide as a visual effect of the worker 16, and good comfortability in the cabin 40 can be obtained.

  In particular, the structure in which the handle portion 30 is supported by the lateral support frame portion 70 can eliminate the handle post erected on the cabin floor, so that it is good without hindering the visibility of the front and lower front of the operator 16. Can be easily obtained.

  Further, by forming a hollow pipe-shaped support frame portion by the lateral support frame portion 70 and the interior panel portion 130 between the upper transparent portion 71 and the lower transparent portion 72, the support frame portion is seated on the driver's seat 15. By providing it at a position corresponding to the knee of the worker 16 who is working, it is possible to prevent the knee of the worker 16 from colliding with a transparent portion made of a glass plate or the like. Accordingly, for example, even when the operator 16 sitting on the driver's seat 15 is swung forward with a disturbed posture when the combine 1 is suddenly turning or suddenly stopped, the front portion 41 of the cabin 40 is obtained. The knee 16 of the worker 16 can be prevented from contacting the transparent portion such as glass that constitutes a high safety. Further, even when the knee of the worker 16 collides, the contact portion of the knee becomes the interior panel portion 130 that forms the hollow portion 130 a together with the lateral support frame portion 70, so that the interior panel portion 130 can absorb the impact. The worker 16 can be protected. That is, the interior panel portion 130 serves as a cushioning material, and the knee of the worker 16 can be prevented from directly hitting the lateral support frame portion 70, and the worker 16 can be protected.

  In the combine 1 according to the present embodiment, the handle portion 30 is provided at the left and right center portion of the lateral support frame portion 70, and the interior panel portion 130 is a support portion of the handle portion 30 with respect to the lateral support frame portion 70. It is provided on both the left and right sides. According to such a configuration, since the handle portion 30 is disposed at the left and right center portion, it is possible to avoid the handle portion 30 from getting in the way when an operator gets in and out of the passenger passage in the cabin 40. it can. Further, both knees of the worker 16 seated in the driver's seat 15 are positioned just in front of the left and right interior panel portions 130. Therefore, when the combine 1 is suddenly stopped, the knees of the worker 16 are in contact with each other. Can be reliably absorbed by the interior panel unit 130, and the operator 16 can be reliably protected.

  Moreover, in the combine 1 which concerns on this embodiment, the interior panel part 130 has a bulging shape which makes a rear side the protrusion side. According to such a configuration, the cushioning property in the interior panel portion 130 can be improved, and thus the impact absorbability when the operator 16 hits the knee can be improved. Thereby, higher safety can be obtained. Further, the steering case 110 located between the left and right interior panel portions 130 inevitably accommodates the support case 93 and the like of the steering wheel 91 provided on the rear side of the lateral support frame portion 70, so It has a shape bulging rearward from the portion 70. Therefore, the step between the interior panel portion 130 and the steering case 110 can be reduced by making the interior panel portion 130 bulge rearward. As a result, unevenness caused by the difference in shape between the steering case 110 and the left and right interior panel portions 130 can be reduced on the rear side of the lateral support frame portion 70 that is the interior of the cabin 40, and a morphological discomfort is felt. And an excellent appearance due to an integral form can be obtained.

  Further, in the combine 1 according to the present embodiment, the wiring for the electrical components disposed in the cabin 40 is accommodated in the hollow portion 130 a formed by the lateral support frame portion 70 and the interior panel portion 130. According to such a configuration, it is possible to avoid the wiring of the electrical components from being exposed to the outside, to improve the aesthetics in the cabin 40 and to make the space in the cabin 40 effective. Can be used. In addition, operation units such as the key switch 136 and the reproduction switch 137 can be easily arranged on the interior panel unit 130, and the operability can be improved. In addition, since the wiring of the electrical component is accommodated in the hollow portion 130a, the wiring is not exposed to the outside, so that an operator's foot may be caught on the wiring, or the wiring may deteriorate over time due to light, heat, or the like. Can be prevented, and the wiring can be protected.

  In particular, in the configuration in which the interior panel portion 130 has a bulging shape with the rear side as a protruding side, the internal space as the hollow portion 130a can be easily secured widely, so that the cushioning property of the interior panel portion 130 is improved. In addition, the storage performance of the hollow portion 130a can be improved. Here, regarding the stowability of the hollow portion 130a, even an operation portion having a relatively large installation space such as a key switch 136 can be easily housed in the hollow portion 130a.

  Further, in the combine 1 according to the present embodiment, the horizontal support frame portion 70 and the interior panel portion 130 are provided so that the height position of the seat surface of the driver's seat 15 is located within the range of the vertical width of the interior panel portion 130. It has been. According to such a configuration, the height position of the interior panel portion 130 can be easily adjusted to the height position of the knee of the worker 16 in the seated state. The knee height position of the worker 16 in the seated state can be easily adjusted to the position within the range of the vertical width of the interior panel unit 130 depending on the size of the worker's body. Can do. Thereby, in the structure which makes the interior panel part 130 function as a cushion part with respect to the operator's 16 knee, it becomes possible to respond | correspond in a wide range regarding the magnitude | size of an operator's body.

  Further, the combine 1 according to the present embodiment is a protruding structure on the left and right sides of the upper edge of the lower transparent plate 77 as a support structure for the upper portion of the lower transparent plate 77 constituting the lower transparent portion 72 of the front portion 41 of the cabin 40. 77b, and a structure in which the protruding portion 77b is supported on the front side of the lateral support frame portion 70 as a whole. According to such a configuration, the lower transparent plate 77 can be firmly and stably supported, and the support structure of the lower transparent plate 77 can be strengthened.

  In general, in support of a transparent plate such as a glass plate constituting the window portion, from the viewpoint of securing the area of the transmission portion by the transparent plate, etc., a substantially linear narrow edge portion along the outer shape of the transparent plate, It becomes a support part for the mounting surface. However, according to such a transparent plate support structure, it is difficult to obtain a stable support state.

  Therefore, as described above, the upper transparent portion of the lower transparent plate 77 is formed to have a concavo-convex shape having a substantially “V” shape, and the structure in which the convex portion (protruding portion 77b) is supported on the mounting surface is adopted. Thus, the area of the support surface of the lower transparent plate 77 can be easily secured, and a stable support state can be easily obtained. Moreover, according to the structure which supports the protrusion-shaped part 77b of the lower transparent plate 77, the area which arrange | positions the cushion member 82 interposed between the lower transparent plate 77 and an attachment surface can be expanded. For this reason as well, the lower transparent plate 77 can be stably supported. Thereby, the lower transparent part 72 which comprises the front lower surface part 41b of the cabin 40 can be made robust, and a structure advantageous in terms of safety can be realized.

  Here, the modification of the structure of the cabin 40 which concerns on this embodiment is demonstrated using FIG. As shown in FIG. 19, in the configuration of this modified example, a buffer member 180 for buffering an impact from the interior panel unit 130 side is provided in a hollow portion 130 a formed together with the lateral support frame unit 70. .

  The buffer member 180 is an elastic member having a cushioning property, such as urethane foam molded from a foamed resin material such as sponge, rubber, or polyurethane. In the example shown in FIG. 19, the buffer member 180 is provided in a state of being filled in the buffer member storage space 130b partitioned in the hollow portion 130a. The buffer member storage space 130b is provided as a space on the rear side (right side in FIG. 19) of the hollow portion 130a. The buffer member storage space 130b is formed together with the interior panel body 131 by a partition member including a partition plate 181 provided so as to face the bulging portion 131a of the interior panel body 131 constituting the interior panel portion 130 in the hollow portion 130a. Is formed. In particular, the buffer member housing space 130b is formed mainly by the bulging portion 131a of the interior panel body 131.

  The partition plate 181 is provided so that the substantially front-rear direction is the plate thickness direction, and is spanned between the upper support stay 132 and the lower support stay 133 to which the interior panel body 131 is supported and fixed. Specifically, it is as follows.

  As described above, the upper support stay 132 is configured to have a substantially “U” shape with the front side as the open side in a cross-sectional view. The upper end portion of the partition plate 181 is overlapped with the rear surface portion 132b of the upper support stay 132 from the rear side, and the partition plate 181 is fixed by a fastener 183 such as a bolt. The upper support stay 132 forms a rear surface portion 132b in such a manner that an upper member 132c and a lower member 132d, both of which are substantially “L” shaped in a side view, overlap each other, and the upper member 132c. By fixing the overlapping portion of the lower member 132d with the lower member 132d with the fastener 183, it is configured to have a substantially “U” shape in a side view.

  On the other hand, the lower support stay 133 has a partition plate support part 133c in the upper part thereof. The partition plate support portion 133c is a plate-like portion that is arranged in a substantially vertical shape with the front-rear direction being a plate thickness direction, and is perpendicular to the vertical surface portion 133b of the lower support stay 133 in a side view. It is provided so as to be perpendicular to this via a lateral surface portion 133d. The lower end portion of the partition plate 181 is overlapped with the partition plate support portion 133c of the lower support stay 133 from the rear side, and the lower end portion of the partition plate 181 is fixed by a fastener 184 such as a bolt.

  The buffer member storage space 130b is roughly partitioned by a partition plate 181 covering the bulging space portion by the bulging portion 131a of the interior panel body 131 from the front side inside the hollow portion 130a. Is formed. That is, the buffer member storage space 130b is provided as a space portion in which the bulging space portion by the bulging portion 131a in the hollow portion 130a is vertically partitioned by the upper support stay 132, the partition plate 181 and the lower support stay 133. Yes.

  In the buffer member storage space 130b, the buffer member 180 is provided in a state of being fixed to, for example, at least one of the rear side surface of the interior panel body 131 and the rear surface of the partition plate 181. Further, for example, the buffer member storage space 130b may be a sealed space, and the buffer member 180 may be foam-molded as a urethane foam made of a foamed resin material such as polyurethane.

  According to the configuration of the modification as described above, the cushioning property of the interior panel portion 130 can be improved by the buffer member 180 provided in the hollow portion 130a. Thereby, the absorbability of the impact when the knee of the worker 16 hits the interior panel part 130 can be effectively improved, and the worker 16 can be reliably protected.

  The combine which concerns on this invention demonstrated using embodiment as mentioned above is not limited to embodiment mentioned above, A various aspect is employable in the range along the meaning of this invention.

  In the embodiment described above, the operation units arranged in the interior panel unit 130 are the key switch 136, the reproduction switch 137, and the combination switch 138, but are not limited to these operation units, and other switches, levers, and the like. An operation unit may be provided. About the operation part arrange | positioned in the interior panel part 130, the wiring connected to it is suitably accommodated in the hollow part 130a. Thereby, as described above, it is possible to improve the aesthetics in the cabin 40, effectively use the space, protect the wiring, and the like.

  In the modification of the embodiment described above, the buffer member 180 is provided in the buffer member storage space 130b partitioned as a space portion on the rear side of the hollow portion 130a. It is not limited. For example, the buffer member 180 may be provided along the interior panel body 131 over the entire back surface of the interior panel body 131, or may be provided so as to be entirely filled in the hollow portion 130a. That is, the buffer member 180 is resistant to an impact from the interior panel body 131 side such as a collision of an operator's knee in the cabin 40 in the frame portion including the lateral support frame portion 70 and the interior panel portion 130 forming the hollow portion 130a. What is necessary is just to provide in the aspect which cushion properties improve.

  In the above-described embodiment, the handle portion 30 as the steering operation portion has the steering wheel 91 including the annular gripping portion as the steering operation tool, but the steering included in the combine 1 is provided. The configuration of the operation unit is not limited to this. As a steering operation part, the thing provided with the lever operation tool etc. which are tilted instead of the steering wheel 91, for example may be sufficient.

  In the above-described embodiment, the center post 121 is installed between the lateral support frame portion 70 and the footrest 120. As the configuration of the cabin 40, for example, as shown in FIG. The configuration may be omitted. In such a configuration, the post lower end support member 127 that is fixed to the support base 120 b of the footrest 120 and supports the lower end of the center post 121 is also unnecessary.

  According to such a configuration, the center post 121 existing inside the lower transparent portion 72 constituting the front lower surface portion 41b of the cabin 40 is eliminated, so that the front portion 41 of the cabin 40 has a cleaner appearance. Can do. Moreover, since the transmission range by the lower transparent part 72 can be expanded by omitting the center post 121, it is possible to effectively improve the visibility of the front lower part of the cabin 40 and the daylighting property in the cabin 40. This makes it possible to obtain good comfortability in the cabin 40. Further, by omitting the center post 121, the periphery of the footrest 120 is clear, so that the seated worker 16 can smoothly perform the operation of the foot when the footrest 120 is used and the like in the cabin 40. Comfortable operability can be obtained.

  Further, in the above-described embodiment, the lower case portion 112 constituting the steering case 110 has a flat portion 112b protruding in a rectangular shape from the lower edge of the lateral support frame portion 70 in a rear view, but the visibility is improved. From this point of view, the configuration may be such that the downward extending portion of the lower case portion 112 is omitted. Such a configuration is, for example, a configuration in which the flat portion 112b is omitted from the lower case portion 112 as shown in FIG.

  In the configuration of the steering case 110 shown in FIG. 20, the lower end of the lower case part 112 is positioned above the lower edge of the lateral support frame part 70, that is, the lower edge of the projecting piece part 70c at the left and right central part. That is, the cabin 40 shown in FIG. 20 is configured such that the lower portion of the steering case 110 does not protrude below the lateral support frame portion 70. In the cabin 40 shown in FIG. 20, the lateral support frame portion 70, the steering case 110, and the left and right interior panel portions 130 extend roughly in the left-right direction between the upper transparent portion 71 and the lower transparent portion 72. An integral horizontal structure is configured, and the steering wheel 91 of the handle portion 30 is disposed above the horizontal center of the horizontal structure.

  According to such a configuration, combined with the entire transparent configuration of the front surface portion 41 of the cabin 40 by the upper transparent portion 71 and the lower transparent portion 72 and the configuration in which the center post 121 is omitted, the front portion of the cabin 40 is provided. 41 can have a cleaner appearance across the entire top and bottom. Moreover, since the transmission range by the lower transparent part 72 can be expanded to the maximum, the visibility about the front lower part of the cabin 40 and the daylighting property with respect to the inside of the cabin 40 can be improved more effectively.

DESCRIPTION OF SYMBOLS 1 Combine 2 Traveling part 3 Crawler part 4 Traveling machine body 12 Driving part 15 Driver's seat 15a Seat part 30 Steering part (steering operation part)
40 cabin 41 front part 46 floor part 70 horizontal support frame part 71 upper transparent part 72 lower transparent part 130 interior panel part 130a hollow part 131 interior panel body 131a bulging part 136 key switch 137 regeneration switch 138 combination switch 180 buffer member

Claims (6)

A combine provided with a cabin that covers a driving part, and provided with a driver's seat on a floor part constituting the cabin,
A lateral support frame portion laid across the upper and lower intermediate portions of the front portion of the cabin;
An upper transparent part that is provided on the upper side of the lateral support frame part and constitutes a front part of the cabin;
A lower transparent part that is provided on the lower side of the lateral support frame part and constitutes a front part of the cabin;
A steering operation unit supported by the lateral support frame unit;
An interior panel portion provided on the rear side of the lateral support frame portion and forming a hollow portion together with the lateral support frame portion. The steering operation part is provided at the left and right center part of the lateral support frame part,
The combine according to claim 1, wherein the interior panel portion is provided on both left and right sides of the support portion of the steering operation portion with respect to the lateral support frame portion. The combine according to claim 1 or 2, wherein the interior panel portion has a bulging shape with a rear side as a protruding side. The combine according to any one of claims 1 to 3, wherein a wiring for an electrical component disposed in the cabin is accommodated in the hollow portion. The combiner according to any one of claims 1 to 4, wherein a buffer member for buffering an impact from the interior panel portion side is provided in the hollow portion. The horizontal support frame part and the interior panel part are provided so that a height position of a seating surface of the driver's seat is located within a range of a vertical width of the interior panel part. The combine of any one of -5.

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