JP2013074808A - Paddy field working machine - Google Patents

Abstract

When a center mascot is in a first posture extending rearward and upward from the vicinity of the front end of the bonnet, the vicinity of the base end portion of the center mascot is less likely to protrude forward than the front end of the bonnet, and during transportation, etc. Also provide paddy field machines that are less susceptible to damage to the center mascot.
A bonnet 22 provided at a front portion of an airframe 1, a first posture extending rearward and upward from the vicinity of the front end around a lateral axis X2 disposed near the front end of the bonnet 22, and at least a front end A center mascot 32 that can swing between a second posture extended upward from the vicinity, and a recess that can accommodate at least the vicinity of the proximal end of the center mascot 32 in the first posture at the front end of the bonnet 22 50 was provided.
[Selection] Figure 3

Description

  The present invention includes a bonnet provided at a front portion of a fuselage, and a first posture extending rearward and upward from the front end around a lateral axis disposed near the front end of the bonnet and at least from the vicinity of the front end The present invention relates to a paddy field work machine provided with a center mascot that can be swung between a second posture extended upward.

  As prior art document information related to this type of paddy field machine, there is Patent Document 1 shown below. In the paddy field machine described in Patent Document 1, when paddy field work such as rice planting is performed with the paddy field machine, the work is performed while aligning the tip of the raised center mascot (running sighting tool) with the mark on the paddy field. It can be carried out.

JP 2000-326738 A (0064 paragraph, FIG. 3)

  However, in the paddy field machine described in Patent Document 1, even when the center mascot is in the first posture extending rearward and upward from the vicinity of the front end of the bonnet, the vicinity of the base end of the center mascot is more forward than the front end of the bonnet. For example, when a paddy field machine is loaded on a truck bed and transported, the center mascot may come into contact with the side surface of the bed and be damaged.

  Therefore, in view of the problems given by the conventional paddy field machine illustrated above, the object of the present invention is to provide a center mascot base when the center mascot is in the first posture extended rearward and upward from the vicinity of the front end of the bonnet. An object of the present invention is to provide a paddy field work machine in which the vicinity of the end portion is less likely to protrude forward than the front end of the bonnet, and the center mascot is not easily damaged even during transportation.

The characteristic configuration of the paddy field machine according to the present invention is as follows.
A bonnet at the front of the aircraft,
Swing between a first posture that extends rearward and upward from the vicinity of the front end and a second posture that extends upward from at least the vicinity of the front end around a lateral axis disposed near the front end of the bonnet. A center mascot that can be operated dynamically,
A recess is formed at the front end of the bonnet so as to accommodate at least the vicinity of the base end of the center mascot in the first posture.

  In the paddy field work machine having the above characteristic configuration, in the first posture in which the center mascot extends rearward and upward from the vicinity of the front end of the bonnet, at least a part near the base end of the center mascot is stored in the recess provided in the bonnet. Thus, at least in the first posture, the portion of the center mascot that exists in front of the front end of the bonnet is reduced, and the center mascot is hardly damaged even during transportation.

  Another feature of the present invention lies in that the lateral axis of the center mascot is arranged behind the front end of the bonnet at least in a side view.

  This configuration is more advantageous because the important part pivotally supporting the center mascot is sufficiently protected by the vicinity of the front end of the bonnet.

  Another feature of the present invention is that the recess is formed between a pair of headlights juxtaposed side by side in the vicinity of the front end of the bonnet.

  If it is this structure, the site | part for supporting a center mascot so that rocking | fluctuation operation is possible can be rationally arrange | positioned in the space which generate | occur | produces between the right and left headlights near the back surface of a bonnet.

  Another feature of the present invention is that the center mascot can be swung to the second posture in which the center mascot is tilted from the vicinity of the front end to the front rather than vertically.

  With this configuration, the center mascot can be moved from the vicinity of the front end of the bonnet according to the preference of the worker and the circumstances of the field, as well as the most standard second posture in which the center mascot stands generally vertically from the front end of the bonnet. It is convenient because it can be held in a posture that falls forward rather than vertically.

It is a left view of the whole riding rice transplanter. It is a top view of the whole riding rice transplanter. It is a vertical side view inside a bonnet. It is a side view which shows a bonnet and a center mascot. It is a front view which shows a bonnet and a center mascot. It is a side view which shows the base end part vicinity of a center mascot. It is a front view which shows a radiator and a dustproof net. It is a top view which shows a radiator and a dustproof net. It is a front view which shows another embodiment of a radiator and a dustproof net.

EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated, referring drawings.
(Overall configuration of riding type rice transplanter)
1 and 2 show the entire side surface of a riding type rice transplanter as an example of a paddy field working machine according to the present invention. This rice transplanter is provided with a hydraulic cylinder at the rear part of a traveling machine body 1 configured as a riding type. A seedling planting device 4 is connected to be movable up and down through a link mechanism 3 that swings up and down by the operation of 2.

  As shown in FIG. 1 and FIG. 3, the traveling machine body 1 uses a belt-type transmission device 6 to transmit power from a water-cooled diesel engine (hereinafter abbreviated as an engine) 5 mounted in a hood 22 at the front portion thereof. , A four-wheel drive type that transmits to the left and right front wheels 10 and the rear wheels 11 via a hydrostatic continuously variable transmission 7 and a gear-type auxiliary transmission (not shown) installed in the transmission case 8. The boarding operation part 14 provided with the steering wheel 12 which steers the right-and-left front wheel 10, the driver's seat 13, etc. is formed in the center part.

  The hydrostatic continuously variable transmission 7 is configured to be able to change gears by operating a main transmission lever 15 provided on the left side of the steering wheel 12, and the auxiliary transmission is an auxiliary transmission provided on the left side of the driver seat 13. A gear shift operation can be performed by operating the lever 16.

  The seedling planting device 4 leveles the seedling planting site with the leveling float 17 as the aircraft travels, and the seedling mounting table 18 is driven back and forth with a constant stroke in the left-right direction with the power after shifting. Each of the rotary planting mechanisms 19 is configured to perform a planting operation in which a predetermined amount of seedlings are taken out from the lower end of the seedling mount 18 and planted in the field. On both the left and right sides of the bonnet 22 at the front portion of the traveling machine body 1, there are provided spare seedling storage stands 23 on which spare seedlings are placed. An extension step 9 is provided on both the left and right sides of the operation unit step 14S, so that the transfer work of the seedling from the preliminary seedling stage 23 to the seedling stage 18 can be easily performed.

  Behind the driver seat 13 is provided a fertilizer application device 40 capable of supplying fertilizer to the field in conjunction with the seedling planting device 4. The fertilizer applicator 40 includes a storage hopper 37A disposed behind the driver's seat 13 to store powdered fertilizer and the like, a feed mechanism 37B that feeds the fertilizer and the like of the storage hopper 37A, and a planting mechanism 19 from the feed mechanism 37B. And a fertilizer hose 39 extending to the groove producing device 38 disposed in the vicinity of the.

  By operating the raising / lowering lever 20 provided on the right side of the driver's seat 13, the hydraulic cylinder 2 is actuated, and the non-working position where the seedling planting device 4 is greatly raised and the working position where the seedling planting device 4 is grounded It can be moved up and down. In the working position, the lifting control for controlling the hydraulic cylinder 2 is performed so as to maintain the set target height. The sensitivity of the lifting control is provided by a sensitivity adjustment lever (not shown) provided on the right side of the driver seat 13. Can be adjusted.

  As shown in FIG. 3, a radiator 24 for cooling the engine is disposed behind the engine 5, and the cooling air flow from the cooling fan 25 driven by the electric motor 25M is passed from the rear to the radiator 24, It is set as the structure discharged | emitted ahead (refer also FIG. 8).

  The bonnet 22 covering the engine 5 is composed of a fixed bonnet 22A provided in a fixed state and a movable bonnet 22B pivotally connected to the fixed bonnet 22A on the front end side. The fixed bonnet 22A includes a control panel portion. 26 is integrally formed, and a rear wall 27 is formed on the rear side facing the boarding operation unit 14.

  The movable bonnet 22B is supported so as to be swingable up and down around the first horizontal axis X1 disposed on the fixed bonnet 22A via a support arm 21 extending rearward from the inner surface of the movable bonnet 22B.

(Configuration of center mascot)
A center mascot 32 as a traveling sighting tool is provided near the front end of the movable bonnet 22B. The center mascot 32 has a rod-like body 32A extending from the vicinity of the front end of the movable bonnet 22B, and a resin sighting body 32B attached to the tip of the rod-like body 32A. It is used for the purpose of appropriately maintaining the planting position by the seedling planting device 4 by running the traveling machine body 1 while aligning the aiming body 32B with the mark formed on the field by an apparatus (not shown).

  As shown in FIG. 4, the center mascot 32 has a retracted posture (an example of a first posture, shown by a solid line in FIG. 4) in which the rod-like body 32A extends rearward and upward from the vicinity of the front end of the movable bonnet 22B. At least swings around the second lateral axis X2 between the first action posture (an example of the second posture, indicated by a two-dot chain line in FIG. 4) extending upward from the vicinity of the front end of the movable bonnet 22B. It is configured to be movable and to be frictionally held at an arbitrary angular position.

  At the left and right central portions of the front end of the bonnet 22 of the movable bonnet 22B, a single recess 50 is formed that can store at least the vicinity of the base end of the center mascot 32 in the retracted posture.

  As shown in FIG. 5, a pair of headlights 36 are juxtaposed in the vicinity of the front end of the movable bonnet 22 </ b> B with a space left and right, and the recess 50 is formed between the pair of headlights 36.

  More specifically, as shown in FIG. 3, the movable bonnet 22B includes a first inclined surface F1 that descends relatively gently toward the front from the vicinity of the control panel portion 26, and a front end of the first inclined surface F1. And a second inclined surface F2 extending downward while retreating somewhat rearward from the rear, and as a result, a protrusion P1 forming an acute angle in side view is formed between the first inclined surface F1 and the second inclined surface F2. Has appeared.

  The rod-like body 32A of the center mascot 32 is directed upward and forward from the second lateral axis X2 disposed sufficiently rearward of the protrusion P1 of the movable bonnet 22B between the pair of headlights 36 to the vicinity of the protrusion P1. The first rod-like portion R1 that is obliquely extended and the second rod-like portion R2 that is elongated from the vicinity of the protrusion P1 toward the upper rear along the first inclined surface F1 of the movable bonnet 22B. .

  As shown in FIG. 6, in the retracted position of the center mascot 32, the bent portion R3 formed between the first rod-shaped portion R1 and the second rod-shaped portion R2 is located at the foremost side. Most of the vicinity of R3 is accommodated in the recess 50, so that the foremost end of the bent portion R3 is substantially at the same position as the foremost end of the protrusion P1 of the movable bonnet 22B.

  A triangular mounting flange 33 extends rearward from the base end portion of the first rod-shaped portion R1, and a mounting sleeve 34 extends left and right from the vicinity of the rear end of the mounting flange 33. The center mascot 32 is pivotally supported in such a manner that the mounting sleeve 34 is rotatably supported by a plate bracket 35 fixed to the back surface of the movable bonnet 22B.

  Further, the center mascot 32 extends in a generally horizontal direction from the vicinity of the front end of the movable bonnet 22B to the front, and the aiming body 32B is placed on the field according to the operator's preference. It can be held at an arbitrary angular posture with the second action posture (an example of the second posture and indicated by a two-dot chain line in FIG. 4) arranged in proximity.

  Note that a locking piece 32C for holding the movable bonnet 22B at an opened upper position by being locked to the front end of the steering wheel 12 is provided at the base end portion of the aiming body 32B.

(Configuration near the radiator)
As shown in FIG. 7, a gate-shaped mounting frame 28 is provided at a position corresponding to the inside of the fixed bonnet 22 </ b> A, and the radiator 24 is fixed in an inner space surrounded by the mounting frame 28. The mounting frame 28 is composed of a pair of left and right vertical frame members 28A and 28B that are erected from the engine frame 29, and a horizontal frame member 28C that connects the upper ends of the vertical frame members 28A and 28B.

  The vertical frame members 28 </ b> A and 28 </ b> B and the horizontal frame member 28 </ b> C are configured by members having an L-shaped cross section, and the horizontal frame member 28 </ b> C is disposed sufficiently higher than the upper end of the radiator 24. The upper end of the mounting frame 28 is supported by the traveling machine body 1 by fixing the horizontal frame member 28C to the connecting stay 30 extending forward from a part of the handle post 12P by welding or the like. There is substantially no member that obstructs the cooling air flow from the air supply hole 27H formed in the 14th rear wall 27 through the radiator 24 toward the engine 5 side.

  The air flow sent by the cooling fan 25 of the radiator 24 to cool the engine 5 is provided at various positions of the movable bonnet 22B and is discharged to the outside air from a large number of openings covered with a mesh-shaped cover material.

  These openings include a total of six first openings 43A arranged so as to sandwich the center mascot 32 from the left and right between the pair of headlights 36, and a pair of second openings adjacent to each other under the headlights 36. 43B, a pair of third openings 43C arranged further below the second opening 43B, a pair of inverted trapezoidal fourth openings 43D extending rearward from the outer end of the third opening 43C, A total of six fifth openings 43E are arranged on the first inclined surface F1 opposite to the first openings 43A across the recess 50.

  The fourth opening 43D is open on the side surface of the movable bonnet 22B, and the first opening 43A, the second opening 43B, and the third opening 43C that are opened in a generally forward direction other than the fifth opening 43E. Have the largest open area comparable to the total open area.

(Dustproof / insect net structure)
A rectangular plate-shaped dustproof / insectproof net 44 is detachably disposed on the upstream side of the radiator 24 with respect to the air flow generated by the cooling fan 25 (the front side of the radiator 24 when viewed from the boarding operation unit 14). The dust / insect net 44 is attached to the attachment frame 28 of the radiator 24 via a rectangular net holding frame 44A for holding the net.

  More specifically, two mounting bolts 45 are provided on the right vertical frame member 28B constituting the mounting frame 28 so as to be spaced apart from each other and protrude rearward, and the right side of the net holding frame 44A. Two mounting holes corresponding to these two mounting bolts 45 are formed in the plate-like extension portion 44 </ b> B extending rearward from the front.

  When attaching the dustproof / insectproof net 44, the leg portions of these mounting bolts 45 are inserted into the mounting holes of the plate-like extension 44 </ b> B, and are then plate-shaped by the wing nuts 46 screwed into the mounting bolts 45. When the extension 44B is fastened and fixed to the vertical frame member 28B, the dust / insect net 44 is fixed in a state of being superimposed on the upstream surface of the radiator 24, as shown in FIGS.

  When removing the dustproof / insect net 44, the wing nut 46 is removed from the two mounting bolts 45, the plate-like extension 44 </ b> B is removed rearward from the mounting bolt 45, and then basically along the surface of the radiator 24. Move to the right.

  However, in the embodiment shown in FIGS. 3, 4, and 7, the lower end of the dustproof / insect net 44 is located below the upper surface of the operation unit step 14 </ b> S, and the upper end is located below the horizontal frame member 28 </ b> C of the radiator 24. Therefore, after the plate-like extension 44B is extracted rearward from the mounting bolt 45, in order to avoid interference with the operation unit step 14S, first, as shown by the arrow D1 in FIG. The dust-proof / insect-proof net 44 can be removed by sliding it up to the vicinity of the member 28C and then pulling it sideways as indicated by the arrow D2.

  As illustrated in FIG. 9, when the upper end of the dustproof / insectproof net 44 is close to the horizontal frame member 28 </ b> C of the radiator 24, the plate-like extension 44 </ b> B is removed rearward from the mounting bolt 45. Can not slide up. Therefore, in this embodiment, after the plate-like extension 44B is extracted rearward from the mounting bolt 45, the dustproof / insect net 44 is first formed on the right inner side of the driving unit step 14S as indicated by the arrow D1 in FIG. Next, the dust-proof / insect-proof net 44 is tilted counterclockwise around the front-rear axis and then tilted upward as shown by the arrow D2 in FIG. Can be extracted.

  The present invention relates to a bonnet provided at the front of the fuselage, a first posture that extends rearward and upward from the vicinity of the front end around the lateral axis disposed near the front end of the bonnet, and at least from the vicinity of the front end It is an invention that can be used as a technique for solving the problems conventionally found in a paddy field work machine equipped with a center mascot that can swing between the second posture extended upward, and is exemplified above. The present invention can be applied not only to paddy field work machines equipped with an engine in front of the boarding operation section, but also to paddy field work machines equipped with an engine below the seat.

X2 Second horizontal axis (center mascot)
1 Traveling aircraft (airframe)
12 Steering wheel 14 Boarding operation part 14S Operation part step 22 Bonnet 22A Fixed bonnet 22B Movable bonnet 32 Center mascot 32A Rod-like body 32B Aiming body 36 Headlight 50 Recessed part

Claims (4)

A bonnet at the front of the aircraft,
Swing between a first posture that extends rearward and upward from the vicinity of the front end and a second posture that extends upward from at least the vicinity of the front end around a lateral axis disposed near the front end of the bonnet. A center mascot that can be operated dynamically,
A paddy field machine in which a concave portion capable of accommodating at least the vicinity of the proximal end of the center mascot in the first posture is formed at the front end of the bonnet.   The paddy field machine according to claim 1, wherein the lateral axis of the center mascot is arranged behind the front end of the bonnet at least in a side view.   The paddy field work machine according to claim 1 or 2, wherein the concave portion is formed between a pair of headlights juxtaposed side by side in the vicinity of the front end of the bonnet.   The paddy field work machine according to any one of claims 1 to 3, wherein the center mascot is swingable from the vicinity of the front end to the second posture in which the center mascot is tilted forward rather than vertically.

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