JP2019187372A - Crop pull-out machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crop pulling machine capable of preventing a crop being pulled out and a crop of an adjacent strip from being damaged by coming into contact with a vertical pulling device. SOLUTION: In a crop pulling machine equipped with a raising mechanism 100 for causing a foliage portion W1 and a pulling and conveying device 200 for holding and pulling a foliage portion W1 caused by the raising mechanism 100, a main body portion W2 of the crop W is raised by a raising mechanism. A protection member 600 for preventing contact with 100 is provided, and the raising mechanism 100 has vertical raising devices 110L and 110R that cause the foliage W1. The vertical raising devices 110L and 110R are provided on the left and right outer sides of the machine body. The outer cover 113a, an inner cover 113b provided on the left and right inner sides of the machine body, and an endless belt 112 that is raised between the outer cover 113a and the inner cover 113b, and the protection member 600 is the front cover of the inner cover 113b. And the crop W is provided at a position that covers the inside of the airframe where the crop W passes laterally. [Selection diagram]

Description

  The present invention relates to a crop extractor that extracts a crop.

  2. Description of the Related Art Conventionally, a root vegetable harvesting machine that extracts root vegetables such as radishes from a field is known (see, for example, Patent Document 1).

  The root vegetable harvesting machine described in the prior patent document 1 causes the stems and leaves of the root vegetables exposed in the field to be caused by the left and right vertical pulling devices and the horizontal pulling device, and the caused stems and leaves are sandwiched by the pulling and conveying device. It is configured to pull out from the field and cut the foliage portion at a predetermined height with a foliage cutting device during transportation, or cut the upper part of the crop with an upper cutting device and return the crop to the field.

  The crops that have been returned to the field can be harvested simply by lifting them by hand, reducing labor. In addition, by cutting the foliage at a predetermined height, a short foliage remains in the crop returned to the field, so that the foliage can be grasped and harvested, and the freshness of the crop is maintained.

JP-A-2018-35

  However, if the vegetation position of the crop is deviated from the straight line, the crop is raised vertically and comes into contact with the inside of the device, resulting in a problem that the crop is damaged and the commercial value is lowered.

  In addition, when the left-right distance between crops, that is, the so-called streak, is narrow, there is a problem that the product is damaged because the crops on the adjacent strips are vertically raised and the outside of the device comes into contact with each other.

  In order to solve the conventional problems, an object of the present invention is to provide a crop drawing machine that can prevent crops being drawn and adjacent crops from coming into contact with the vertical pulling device and being damaged.

  The invention according to claim 1 is an elevating mechanism (100) that causes a foliage part (W1) of a crop (W), and a pulling and conveying device that holds and pulls out the foliage part (W1) caused by the elevating mechanism (100). (200) A crop pulling machine comprising a protective member (600) for preventing the main body (W2) of the crop (W) from contacting the pulling mechanism (100). Machine.

  In the invention of claim 2, the pulling mechanism (100) has a vertical pulling device (110L, 110R) that causes the foliage (W1), and the protective member (600) is a vertical pulling device (110L). , 110R) at least on the lower side of the crop drawing machine according to claim 1.

  According to a third aspect of the present invention, the vertical pulling device (110L, 110R) includes an outer cover (113a) provided on the left and right outer sides of the body, an inner cover (113b) provided on the left and right inner sides of the body, and the outer cover (113a). ) And the inner cover (113b) are provided with an endless belt (112), and the protective member (600) includes the front part of the inner cover (113b) and the side of the crop (W). The crop pulling machine according to claim 2, wherein the crop drawing machine is provided at a position covering an inner portion of the machine body that passes through the machine.

  According to a fourth aspect of the present invention, in the lower part of the protective member (600), a hanging part (601) protruding downward from a lower end part of the inner cover (113b) is formed. The crop extractor as described.

  According to a fifth aspect of the present invention, the protective member (600) is provided at a position covering the front portion of the body of the outer cover (113a) and the outer portion of the body where the adjacent crop (W) passes sideways. The crop drawing machine according to claim 3 or 4, characterized in that it is characterized in that

  According to the first aspect of the present invention, the protective member (600) can prevent the main body (W2) of the crop (W) from coming into contact with the raising mechanism (100), so that the main body (W2) of the crop (W) It is possible to prevent the product value from being damaged.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, by providing a protective member (600) at least on the lower side of the vertical pulling device (110L, 110R), the main body ( Even if W2) is vertically raised and vegetated at a position where it comes into contact with the devices (110L, 110R), it is prevented from being damaged by the protective member (600).

  According to the invention of claim 3, in addition to the effect of the invention of claim 2, by providing a protective member (600) on the inner cover (113b) located closest to the crop (W) of the drawing work strip, The main body (W2) of W) is prevented from coming into contact and being damaged.

  In addition, since the protective member (600) covers the front part of the inner body and the inner part of the inner cover (113b), the main body (W2) of the crop (W) comes into contact with the inner cover (113b) as the aircraft advances. Since the obtained position is covered, the crop (W) is reliably prevented from being damaged.

  According to the invention of claim 4, in addition to the effect of the invention of claim 3, when the main body (W2) of the crop (W) comes into contact with the hanging part (601), the hanging part (601) is bent and the inner cover ( 113b), the main body (W2) of the crop (W) is prevented from coming into contact with the lower end of the inner cover (113b) and being damaged.

  According to the invention of claim 5, in addition to the effect of the invention of claim 3 or 4, the protective member (600) covers the front part of the body and the inner part of the body of the outer cover (113a), so Since the crop (W) to be vegetated can be prevented from coming into contact with the outer cover (113a), the main body (W2) of the crop (W) is prevented from coming into contact with and being damaged.

Left side view of radish extractor Plan view showing transmission system of radish drawing machine Plan view showing the appearance of radish drawing machine Front view of radish drawing machine Schematic plan view of the main parts of the pulling and conveying device Schematic plan view showing the shoulder alignment device and the first cutting device Schematic plan view showing the connection of the left and right pipe members and the front and rear connecting arms Schematic front view showing front and rear connecting arms of another configuration example The principal part top view which shows the raising mechanism which provided the guard body Side view of essential parts showing pulling mechanism with guard body Front view of main part showing pulling mechanism with guard body The principal part top view which shows the raising mechanism which provided the guard body on the outside Side view of essential parts showing pulling mechanism with guard body on the outside Front view of main part showing pulling mechanism with guard body on the outside (A) Schematic side view of the stand in the storage state, (b) Schematic front view of the stand in the storage state Schematic front view showing the receiving part of the stand Schematic front view showing the lighting device

  Below, the radish drawing machine which is an example of the crop drawing machine of this invention is demonstrated, referring drawings.

  As shown in FIG. 1 to FIG. 4, the radish drawing machine 1 includes a gauge wheel 2 disposed on the right front side of the airframe, left and right rear wheels 3L and 3R as drive wheels, and an engine 4 as a power source of the airframe. A steering handle 5 for steering the aircraft is provided.

  An upper end portion of a support stay 2 a that supports the gauge wheel 2 so as to be rotatable is connected to the support stay moving mechanism 10. The support stay moving mechanism 10 has an adjustment rod having one end connected to the support stay 2a and the other end connected to the front end of a rotating handle 10a for rotating the support stay moving mechanism 10 via a bevel gear. Is slidable up and down. The outer wall portion of the support stay moving mechanism 10 is fixed to the body side.

  The adjusting rod includes a first rod on one end connected to the support stay 2a and a second rod on the other end connected to the rotating handle 10a via a bevel gear. The first rod has a cylindrical shape, and has a hole portion in which an internal thread is formed on the inner peripheral wall surface, and the second rod is inserted into the hole portion of the first rod. A male screw that fits with the female screw is formed.

  By rotating the rotation handle 10a, when the second rod rotates via the bevel gear, the first rod moves upward or downward in accordance with the rotation direction of the rotation handle 10a.

  As a result, the support stay 2a connected to the lower end of the first rod moves in the vertical direction (see arrow T in FIG. 1), and the gauge wheel 2 moves in the vertical direction.

  Moreover, since the vehicle height of the front side of the radish drawing machine 1 can be changed freely by this, the height from the ridge surface of the field V of the front end part of the drawing conveyance apparatus 200 can be adjusted.

  The driving force from the engine 4 is transmitted to the chains (not shown) in the left and right chain cases 7L and 7R via the transmission case 6 and the output shaft 6a protruding in the left and right direction of the transmission case 6, and left and right rear wheels. 3L and 3R are driven.

  Further, the left and right chain cases 7L and 7R are rotated in the direction indicated by the arrow U (see FIG. 1) with the output shaft 6a projecting in the left and right directions as the center of rotation when the operator rotates the chain case rotation handles 11L and 11R. ) Are individually rotatable. Thereby, the vehicle height of the rear-wheel side of the radish drawing machine 1 can be adjusted independently on either side.

  The left chain case 7L is configured to be movable in the left-right direction. The left and right rear wheels 3L, 3R are also configured to be attachable to either the left or right side of the left and right chain cases 7L, 7R.

  As a result, the distance between the left and right rear wheels 3L, 3R can be changed. For example, radish can be pulled out even when the number of planting strips is different, such as two-row planting or three-row planting. Correspondence of is improved.

  As shown in FIGS. 1 to 4, the radish drawing machine 1 includes a raising mechanism 100 that causes the foliage W <b> 1 of the radish W that has spread to the field V on the front side of the machine body, and the radish W caused by the raising mechanism 100. There is provided a pulling and conveying apparatus 200 that pulls the radish W from the field V substantially vertically by conveying it obliquely upward and rearwardly in synchronism with the traveling speed of the airframe while sandwiching the foliage portion W1.

  Further, below the pulling / conveying device 200, the stem / leaf portion W1 of the radish W conveyed by the pulling / conveying device 200 is taken over, and the vertical direction in the side view of the shoulder W2a at the upper end of the main body W2 of the radish W is taken. The shoulder aligning device 300 that conveys backward in synchronism with the traveling speed of the airframe while holding the lower portion of the foliage W1 is arranged in a posture that is horizontal or substantially horizontal with the pulling conveying device 200. .

  In addition, the stem and leaf portion W1 of the radish W whose position of the shoulder portion W2a is aligned by the shoulder aligning device 300 is set at an arbitrary position between the position where it is held by the pulling and conveying device 200 and the position where it is held by the shoulder aligning device 300. A first cutting device 400 is provided for cutting.

  As shown in FIG. 6, the first cutting device 400 is a device in which a base portion of a cutting blade 401 that is a single blade is pivotally supported on a rotation support shaft 402. By arranging in a posture that crosses obliquely on the foliage conveyance path located near the center, the foliage part being conveyed is cut by contact.

  On the other hand, when the cutting blade 401 is retreated from the foliage conveyance path, that is, rotated to the outside of one of the left and right bodies of the shoulder aligner 300, the cutting blade 401 moves to the non-cutting position. At this time, since the cutting action area (blade surface) of the cutting blade 401 is located on the outer side of the left and right sides of the shoulder aligning device 300, the operator can perform the maintenance work of the shoulder aligning device 300, the clogging of the foliage, etc. Touching the cutting blade 401 may cause injury.

  In order to prevent this, a cover 403 that covers the cutting action area of the cutting blade 401 is provided in the vicinity of the rotating end of the cutting blade 401 at the non-cutting action position. This cover 403 is configured to cover the cutting action area of the cutting blade 401 by forming a groove in the metal or resin that is longer than the cutting action area of the cutting blade 401 and slightly longer than the thickness of the cutting blade 401. is there.

  In addition, when the cutting blade 401 is rotated to the non-cutting operation position, the longitudinal direction of the cutting blade 401 is directed in the front-rear direction of the machine body. In other words, the posture is substantially parallel to the foliage conveyance path of the shoulder aligner 300. Thereby, during the operation | work which does not cut | disconnect the foliage part currently conveyed with the shoulder alignment apparatus 300, it is prevented that a foliage part contacts the cutting blade 401 of a 1st cutting device, and is cut | disconnected.

  The above-mentioned cutting blade 401 is in a fixed state at the cutting position, but cuts the foliage part while rotating by obtaining driving force from the shoulder aligning device 300, the pulling and conveying device 200, etc. A shaped cutting blade may be used.

  The upper end portion W2b of the main body portion W2 of the radish W that is conveyed rearward while the remaining portion of the foliage W1 is held by the shoulder aligning device 300 is cut behind the first cutting device 400 from the machine body. A second cutting device 500 having left and right disk-shaped cylindrical cutting rotary blades 510L and 510R is detachably provided.

  Said 2nd cutting device 500 is used in order to cut | disconnect the foliage W1 and the upper end part W2b vicinity of the main-body part W2 when harvesting the radish W for a process. As a result, unnecessary parts can be cut at the same time as harvesting, so that the time required for shipping and the labor of the operator can be reduced. On the other hand, for those that are shipped as raw food or those that have a long time from harvesting to shipping and must be kept fresh, the leaves cut off by the first cutting device 400 by removing the second cutting device 500 Harvesting can be performed with the portion W1 remaining in the main body portion W2.

  In the present embodiment, a configuration in which the second cutting device 500 starts cutting the upper end portion W2b of the main body W2 of the radish W after the foliage W1 is completely cut by the first cutting device 400 will be described. However, not limited to this, for example, the second cutting device 500 starts cutting the upper end portion W2b of the main body portion W2 of the radish W before the foliage portion W1 is completely cut by the first cutting device 400. May be.

  The driving force from the engine 4 is transmitted to the drawing / conveying device via a transmission shaft 6b protruding forward from the front end portion of the transmission case 6, and is also transmitted to the transmission mechanisms in the transmission cases 8L and 8R arranged on the left and right. Then, the shoulder aligner 300, the first cutting device 400, and the second cutting device 500 are driven.

  The front end portions of the transmission cases 8L and 8R arranged on the left and right sides are respectively fixed to the left and right main frames 9L and 9R that form a skeleton part of the fuselage and have a substantially inverted U shape when viewed from the side. It is supported by left and right transmission case support stays 9La, 9Ra.

  Also, the front end portions of the left and right pulling and conveying frames 270L and 270R of the pulling and conveying device 200 are fixed to the front end portions of the left and right main frames 9L and 9R, respectively, and the left and right pulling and conveying device support stays 201L and 201R (see FIG. 1). ), The pulling / conveying device 200 is supported and fixed from below so as to incline at a predetermined angle obliquely upward and backward in a side view.

  In addition, the rear end portions of the left and right drawing / conveying frames 270L and 270R of the drawing / conveying device 200 are supported and fixed by an upper support stay 205 fixed to an upper surface portion of a transmission branch case 6d (see FIG. 1) described later. ing.

  Further, at least the upper surface side of the drawing / conveying device 200 is covered with left and right drawing / conveying device covers 202L and 202R (see FIGS. 1 and 3). The left and right drawing / conveying device covers 202L and 202R will be further described later.

  With the above configuration, the radish drawing machine 1 according to the present embodiment holds the foliage W1 of the radish W by the pulling / conveying device 200 while the advancing mechanism 100 raises the foliage W1 of the radish W while traveling forward. After lifting the radish W from the field V and cutting the upper portion of the foliage W1 with the first cutting device 400, further cutting the upper end portion W2b of the main body W2 of the radish W with the second cutting device 500, In this configuration, the radish W is returned to the original hole of the field V.

  Thereby, the operator can extract the radish W from the field V with a light force, and it is not necessary to perform the cutting work of the upper end W2b of the main body W2 of the radish W in the post-processing. Labor can be reduced.

  Next, the raising mechanism 100 will be further described with reference to FIGS.

  The raising mechanism 100 includes left and right vertical raising devices 110L and 110R that cause a foliage W1 extending mainly in the left-right width direction of the radish W to spread upward on the surface of the farm field V and extend upward. It is arranged on the rear side of the left and right vertical pulling devices 110L and 110R, takes over the foliage W1 that is raised upward by the vertical pulling devices 110L and 110R, and mainly extends the foliage W1 extending in the front-rear direction of the aircraft. Left and right horizontal pulling devices 130L and 130R, left and right vertical pulling devices 110L and 110R, and left and right horizontal pulling devices 130L and 130R.

  The left and right vertical pulling devices 110L and 110R are upper and lower vertical pulling drive pulleys 111a and vertical pulling driven pulleys 111b, and endless belts wound around the upper and lower pulleys 111a and 111b. Each of the pull-up lugs 112a includes a vertical pull-up belt 112 formed with a plurality of pull-up lugs 112a.

  The left and right lateral pulling devices 130L and 130R are upper and lower horizontal pulling drive pulleys 131a and horizontal pulling driven pulleys 131b, and endless belts wound around the upper and lower pulleys 131a and 131b. Each of the belts is composed of a laterally raised belt 132 having a plurality of elongated laterally raised lugs 132a.

  Further, as shown in FIG. 3, the pulling device driving mechanism 150 includes a pulling drive chain transmission portion 151 to which a driving force from the engine 4 is input via the transmission shaft 6 b and a driving force from the drive chain transmission portion 151. A universal joint portion 152 that transmits the left side pulling drive pulley 131a to the left side pulling drive pulley 131a, the left side pulling drive pulley 131a is inserted and fixed to the rear end portion, and the first bevel gear 153a is inserted and fixed to the front end portion, The first transmission shaft 153 that transmits the driving force to the left longitudinal pulling drive pulley 111a via the first bevel gear 153a, and the second bevel gear 154a are inserted and lowered at both ends, and the left and right vertical pulls are located near the inside. The second drive shaft 154 in which the raising drive pulleys 111a and 111a are inserted and fixed, and the third bevel gear 155a is inserted and fixed in the front end portion, and the right lateral pulling in the rear end portion And a third transmission shaft 155 drive pulley 131a is inserted and fixed.

  Further, as shown in FIG. 3, the pull-up drive chain transmission portion 151 is a pull to which the rotational drive force transmitted to the left side is inputted among the rotational drive forces branched in the left-right direction from the front end portion of the transmission shaft 6b. A raising input sprocket 151a, a raising output sprocket 151b that raises and outputs the rotational driving force to the apparatus 100, a raising transmission chain 151c wound around the raising input sprocket 151a and the raising output sprocket 151b, An erecting transmission chain case 151d for storing them is provided.

  The first transmission shaft 153, the second transmission shaft 154, and the third transmission shaft 155 are respectively covered with a cylindrical metal first pipe member 153b, a second pipe member 154b, and a third pipe member 155b. The first pipe member 153b also serves as a fixing member for connecting and fixing the left lateral pulling device 130L and the left vertical pulling device 110L with a fastening member, and the second pipe member 154b. Also serves as a fixing member for connecting and fixing the left vertical pulling device 110L and the right vertical pulling device 110R, and the third pipe member 155b has the right vertical pulling device 110R and the right vertical pulling device 110R. It also functions as a fixing member for connecting and fixing the lateral pulling device 130R with a fastening member (see FIGS. 2 and 3).

  The universal joint 152 is covered with a bellows-like rubber cover 152b (see FIGS. 2 and 3).

  As a result, the left and right vertical pulling belts 112 rotate clockwise in the left side view (see arrow P in FIG. 1), and the left and right horizontal pulling belts 132 are in the directions of arrows Q1 and Q2 (see FIG. 4). ).

  Further, the left and right vertical pulling devices 110L and 110R each effectively exert the pulling function of the foliage portion W1 by the vertical pulling lug 112a, and the foliage portion W1 is wound around the rotating portion such as a belt and a pulley. In order to prevent this, both sides are covered with the outer cover 113a and the inner cover 113b so that only the vertically raised lugs 112a protruding downward and forward are completely exposed to the outside.

  Further, the left and right lateral pulling devices 130L and 130R are respectively covered on the front and rear sides with a front cover 133a and a rear cover 133b in order to prevent the foliage W1 from being caught in a rotating part such as a belt and a pulley. .

  Further, the rear end portion of the inner cover 113b that covers the left and right vertical pulling devices 110L and 110R from the inside is connected and fixed to the front cover 133a that covers the left and right horizontal pulling devices 130L and 130R from the front side by a fastening member. Is done.

  In addition, on the back side of the rear covers 133b and 133b that cover the left and right lateral pulling devices 130L and 130R from the rear side, the upper surface side of the left and right pulling and conveying frames 270L and 270R of the pulling and conveying device 200, which will be described later, is provided. The front end portions of the left and right parallel link arms 160L and 160R are connected to the side surfaces of the front end portions of the left and right substantially inverted U-shaped pipe members 203L and 203R fixed to the left and right, respectively. It is connected and fixed by a fastening member (see FIGS. 1 and 3).

  As shown in FIGS. 1, 3, and 7, of the pipe members 203 </ b> L and 203 </ b> R, the pipe member 203 </ b> L on the left and right sides is provided with a raising height adjusting mechanism 602 that causes the raising mechanism 100 to rotate up and down. A part of the support stay moving mechanism 10 of the gauge wheel 2 is connected to the pipe member 203R on the left and right other side.

  Then, an inverted U-shaped front-side connection is provided above the bent portions on the front side of the left and right pipe members 203L and 203R, or on the front side of the fuselage with respect to the bent portions and at the front side of the fuselage with respect to the front and rear center positions of the pipe members 203L and 203R. Arms 603f are provided to connect the left and right pipe members 203L and 203R. Further, an inverted U-shape is formed above the rear bent portion of the left and right pipe members 203L and 203R, or on the rear side of the aircraft with respect to the bent portion, and on the rear side of the aircraft with respect to the front and rear center positions of the pipe members 203L and 203R. A rear connection arm 603r is provided to connect the left and right pipe members 203L and 203R.

  Thereby, when the diameter of the stalks and leaves W1 of the radish W which the pulling and conveying apparatus 200 holds and conveys is excessively large, or when a stone or the like is pinched, the pulling and conveying apparatus 200 is connected to the front side by a force that opens toward the left and right outer sides. Since the arm 603f and the rear connection arm 603r can be opposed to each other, it is possible to prevent the radish W being transported from falling and the foliage W1 from being excessively left uncut. If the foliage portion W1 is left uncut, an operation of manually cutting off the foliage portion W1 is necessary, but the time and labor required for this operation can be reduced.

  Further, by connecting the left and right pipe members 203L and 203R with the front side connecting arm 603f and the rear side connecting arm 603r, the pulling and conveying apparatus 200 is connected in the left and right direction, so that the strength is improved and the structure is not easily damaged. It becomes.

  In addition, the front side connection arm 603f and the rear side connection arm 603r are configured such that the left and right bent portions are connected to the left and right pipe members 203L and 203R, and the upper side is separated above the conveyance path of the drawing conveyance device 200. To do.

  As a result, the upper side of the foliage W1 comes into contact with the front connection arm 603f and the rear connection arm 603r, and is prevented from being conveyed backward due to wrapping or the like, and the pulling / conveying device 200 is prevented from being damaged by the wound load. Is done.

  In addition, when a load is applied in the direction in which the drawing and conveying apparatus 200 is expanded in the left-right direction of the machine body by sandwiching the thickness of the foliage W1 and stones, the left and right pipe members 203L by the front side connecting arm 603f and the rear side connecting arm 603r, If the force that draws the drawing / conveying device 200 toward the inside of the machine body is exceeded by the connection of 203R, there is a possibility that the connecting portion is damaged.

  In order to prevent this, as shown in FIG. 8, the front side connecting arm 603 f and the rear side connecting arm 603 r are provided with the left and right connecting arm constituting bodies 604 and the elastic members such as springs provided between the left and right of the left and right connecting arm constituting bodies 604. 605 may be configured.

  As a result, when an opening force is applied to the left and right outer sides of the machine body, the expansion and contraction member 605 extends to accept the load, thereby disconnecting the left and right pipe members 203L and 203R from the front connection arm 603f and the rear connection arm 603r. It is prevented.

  The radish W to be harvested by pulling is caused between the left and right of the left and right vertical pulling devices 110L and 110R and the left and right horizontal pulling devices 130L and 130R. However, the radish W is not always vegetated at the left and right central portions of the left and right vertical pulling devices 110L and 110R and the left and right horizontal pulling devices 130L and 130R. Sometimes it is biased to.

  Such radish W may contact the front side, the side surface, and the lower end of the inner cover 113b of the left and right vertical pulling devices 110L and 110R. The inner cover 113b is formed by bending a metal plate or molding a hard resin, and the radish W may be pierced at the corner and the radish W may be damaged. Moreover, the skin of the radish W may be abraded and damaged by continuing to contact the side surface of the inner cover 113b.

  Such a flawed radish can reduce the commercial value or lose the commercial value.

  In order to prevent this problem, as shown in FIG. 9 to FIG. 11, soft materials such as rubber, urethane, and sponge are provided on the lower side of the inner covers 113b of the left and right vertical pulling devices 110L and 110R that are likely to come into contact with the radish W. A guard plate 600 made of a plate material is provided. The guard plate 600 covers the front end portion on the lower side of the inner cover 113b and the side surface on the side through which the radish W passes, and the lower end portion of the guard plate 600 is lower than the lower end portion of the inner cover 113b and is pulled vertically. A hanging part 601 is formed that hangs downward over a position above the lower end of the raising lug 112a.

  If the hanging part 601 of the guard plate 600 is too long, it may swing left and right due to wind or vibration of the airframe, etc., and may hinder the operation of the lug 112a. Therefore, the actual length of the hanging part 601 is the length of the inner cover 113b. It shall protrude below about 3-5 mm from a lower end part.

  The guard plate 600 is attached to the left and right vertical elevating devices 110L and 110R via attachment members (not shown) such as bolts, but the radish W is damaged when the attachment members protrude to the passing position of the radish W. Therefore, the inner cover 113b of the left and right vertical pulling devices 110L and 110R is preferably formed with a recess so that the end of the mounting member does not protrude from the inner cover 113b.

  The rear end portion of the guard plate 600 may be provided up to the rear end portion of the inner cover 113b. However, when the radish W starts to be pulled out and lifted, it becomes difficult to contact in the vicinity of the rear portion of the inner cover 113b. If the vertical pulling devices 100L and 100R are slightly rearward from the central portion in the front-rear direction, the guard plate 600 is prevented from becoming excessively large, and the cost of components can be reduced.

  With the above configuration, the radish W can be prevented from being damaged by the guard plate 600 when the radish W passes between the left and right of the left and right vertical pulling devices 110L and 110R, so that the commercial value of the radish W is prevented from being lowered. .

  Further, the hanging portion 601 hangs downward from the lower end portion of the inner cover 113b, so that the radish W comes into contact with the hanging portion 601 before contacting the lower end portion of the inner cover 113b, and the drooping portion 601 is bent and the inner cover 113b is bent. Therefore, it is possible to prevent the radish W from directly contacting the inner cover 113b.

  Further, by covering the front lower end portion of the inner cover 113b with the guard plate 600, the radish W can be in contact with the inner cover 113b even if the radish W is in a position where it can come into contact with the inner cover 113b depending on the course of the aircraft, the vegetation position and the size. Direct contact with 113b is prevented.

  In addition, the radish W is often cultivated over two ridges, three ridges, and a plurality of ridges in one persimmon, and there may be a situation where the radish W exists on the side of the radish W during the drawing operation. Depending on the interval between the lines to be cultivated, the radish W of the adjacent line may come into contact with the outer cover 113a of the left and right vertical pulling devices 110L and 110R, and may be damaged.

  In order to prevent this problem, as shown in FIGS. 12 to 14, guard plates 600 may be provided over the front lower end portion and the outer side surface of the outer cover 113 a of the left and right vertical pulling devices 110 </ b> L and 110 </ b> R. The guard plate 600 provided on the outer cover 113a covers from the front end to the rear end of the side surface of the outer cover 113a in order to reliably prevent contact with the radish W that is not pulled out at that time.

  Thereby, since it can prevent that the radish W planted to an adjacent strip | wrist raises and contacts the mechanism 100, the fall of the commercial value by a damage is prevented.

  Next, the pulling and conveying apparatus 200 will be further described mainly with reference to FIG. As shown in FIG. 5, the drawing / conveying device 200 includes left and right endless drawing / conveying belts 210L and 210R, and left and right drawing / conveying belts 210L and 210R. 220R, left and right drawing driven pulleys 230L and 230R arranged on the front end side, and right and left drawing conveying belts 210L and 210R, respectively, immediately after the drawing driven pulleys 230L and 230R. Between the left and right clamping roller groups 240L and 240R composed of four clamping rollers for applying a strong pressing force for clamping the foliage W1 to the extraction conveying belt, and between the clamping roller group and the extraction driving pulley. , Downstream from the upstream side with respect to the conveyance direction A (see arrow A in FIG. 5) along the conveyance path through which the sandwiched foliage W1 is conveyed The left and right first tension rollers 250L and 250R, the left and right second tension rollers 251L and 250R, the left and right third tension rollers 252L and 252R, and the left and right pull-out conveying belts 210L are disposed outside and inside. A left pulling tension pulley group 260L that adjusts the tension of the entire left belt, and a right pulling tension pulley group 260R that is disposed outside and inside the right pulling conveyance belt 210R and adjusts the tension of the entire right belt; It is a substantially prismatic member having a hollow inside, and includes left and right pulling and conveying frames 270L and 270R each having a bearing portion 271 at a rear end portion thereof.

  The upper ends of the drive shafts 221 of the left and right pulling drive pulleys 220L and 220R are rotatably supported by the respective bearing portions 271 of the left and right pulling conveyance frames 270L and 270R, and the respective drive shafts 221 are supported. Is connected to the left and right universal joints 6c, 6c so that power branched in the left-right direction is transmitted from the front end of the transmission shaft 6b (see FIG. 1).

  The lower ends of the left and right universal joints 6c and 6c are respectively supported by bearing members provided at upper and lower portions of the left and right ends of a substantially T-shaped transmission branch case 6d (see FIGS. 1 and 3) in plan view. It is connected to the tip of a vertical transmission shaft 6e (see FIGS. 1 and 3) that is rotatably supported. The transmission branch case 6d is connected to the front end portion of the transmission shaft case that houses the transmission shaft 6b, and the vertical transmission shaft 6e that transmits the power branched in the horizontal direction from the front end portion of the transmission shaft 6b in the vertical direction. The transmission mechanism is housed.

  Further, the left pulling driven pulley 230L and the left holding roller group 240L can rotate with respect to the left holding force adjusting frame 280L attached to the lower surface of the front end portion of the left pulling conveyance frame 270L so that the position can be changed. It is attached to.

  Further, the right pulling driven pulley 230R and the right holding roller group 240R can rotate with respect to the right holding force adjusting frame 280R attached to the lower surface of the front end portion of the right pulling conveyance frame 270R so that the position can be changed. It is attached to.

  Further, each of the left and right clamping force adjusting frames 280L and 280R is provided with two long holes 281 in the front-rear direction in the left-right direction, and within the range of the long holes 281, the left-right direction (arrow H in FIG. In this configuration, the left and right clamping force adjustment frames 280L and 280R are fixed to the left and right pull-out conveyance frames 270L and 270R by fastening members 282 such as bolts and nuts, respectively.

  As a result, the operator loosens the fastening member 282 and slides the left and right clamping force adjustment frames 280L and 280R in the left-right direction (see arrow H in FIG. 5) and positions them. By firmly fixing the holding force adjusting frames 280L and 280R to the left and right pull-out conveyance frames 270L and 270R, the gap G (see FIG. 5) between the left and right pull-out conveyance belts 210L and 210R can be easily adjusted. I can do it.

  Therefore, the operator can easily adjust the clamping force on the upstream side of the conveyance path of the pulling and conveying apparatus 200 in accordance with the thickness of the foliage W1 of the radish W and the working time (whether there is morning dew). Is too weak to prevent the radish W from being pulled out of the field and to be manually pulled out, and the pinching force is too strong to crush the foliage W1, and the shoulder aligner 300 removes the foliage W1. Since it cannot be taken over and can be prevented from being returned to the original hole in the field with the upper end portion W2b of the main body portion W2 of the radish W remaining, the upper end portion W2b of the main body portion W2 of the radish W is removed in a later step. This work does not occur.

  Further, the operation of adjusting the clamping force on the upstream side of the conveyance path of the pulling and conveying apparatus 200 can be easily performed by loosening the fastening member 282 and sliding the left and right clamping force adjusting frames 280L and 280R. So work efficiency is improved.

  Instead of the above-described configuration for adjusting the clamping force of the pulling / conveying device 200 using the fastening member 282, for example, a radish for eating, radish for processing (for example, for oden), pickles It is good also as a structure which switches the said clamping force by a single touch in three steps about the daikon radish.

  Next, a description will be given of the stand 700 that is brought into contact with a farm scene when the vehicle is stopped and restricts the aircraft from moving back and forth due to an inclination.

  As shown in FIGS. 4, 15 (a), 15 (b), and 16, a receiving projection 702 having a concave shape in plan view is provided on the transmission cover 701 behind the pulling device driving mechanism 150 and covering the output shaft 6 a. A pin hole 703 is formed in each of the left and right protruding portions of the receiving projection 702. Then, the locking pin 704 is inserted into the pin hole 703 so as to be slidable in the left-right direction, and a rotation operation arm 705 for sliding the locking pin 704 in the left-right direction by rotating is received by the receiving projection 702. Place it on either the left or right side.

  The stand 700 is formed by bending a round pipe or a square pipe, or by connecting a long pipe and a short pipe directly or via a joint to form an L shape, and the distance from the bent portion to the end is short. The side is a grounding part 700S for grounding to the field, and the side having a long distance from the bent part to the end part is an adjusting part 700L for adjusting the grounding height.

  The stand 700 has at least one holding attachment hole 700a in the grounding portion 700S, and the adjustment portion 700L has at least two adjustment attachment holes 700b at predetermined intervals.

  When the stand 700 is used, the locking pin 704 is inserted into an arbitrary adjustment mounting hole 700b and adjusted to a height at which the grounding portion 700S contacts the field scene. On the other hand, when the stand 700 is retracted when the radish W is withdrawn or moved, the locking pin 704 is inserted into the holding attachment hole 700a so that the adjustment portion 700L is spaced apart from the farm scene in the longitudinal direction. Turn it so that it does not touch the farm scene. In addition, the stand 700 at the time of storage has a substantially horizontal posture with the shoulder aligner 300.

  Accordingly, when the rotation operation arm 705 is operated, the lock pin 704 can be switched between a state in which the stand 700 is held and a state in which the stand 700 can be removed. The operation of inserting / removing the split pin or the like into the end portion of the locking pin 704 becomes unnecessary, and the work efficiency is improved.

  If the rotation operation arm 705 is provided on the outer left side of the machine body, a large work space can be secured and the operability is improved.

  Further, when the rotation operation arm 705 is operated in a direction in which the locking pin 704 is inserted into the holding attachment hole 700a or the adjustment attachment hole 700b, the front of the grounding portion 700S of the stand 700 or the adjustment portion 700L extends in the left-right direction. If it is set as the structure covered, even if the locking pin 704 breaks, the stand 700 can be prevented from falling forward of the body even if the stand 700 is not fixed.

  Furthermore, if the shape of the rotation operation arm 705 is a shape that follows the shape of the outer peripheral portion of the stand 700, the space in which the stand 700 can freely move between the stand 700 and the receiving projection 702 can be suppressed. Therefore, it is possible to prevent the generation of abnormal noise and wear of the receiving protrusion 702.

  The above-described extraction operation of the radish W may be started early in the morning before sunrise for reasons such as ensuring freshness and shipping. At this time, if the vegetation position of the pulling and conveying mechanism 200 and the pulling and conveying apparatus 200 and the radish W cannot be visually observed, the radish W cannot be pinched and pulled, and the remaining radish W is manually operated. In this case, the operator needs to spend extra labor, and there is a problem that extra time is spent on the harvesting work.

  In order to improve visibility during early morning work, as shown in FIGS. 1 and 2, an illumination device 800 is provided at the left and right sides of the control handle 5, mainly near the front of the operator's standing position. . The illuminating device 800 includes a light emitting body 801 having an irradiation range that can accommodate the vegetation position of the radish W and the vegetation position of the pulling and conveying start end of the raising mechanism 100 and the pulling and conveying device 200, particularly the radish W. Shall.

  Thus, the operator can visually recognize the pulling and conveying start end of the pulling mechanism 100 and the pulling and conveying apparatus 200 and the vegetation position of the radish W, so that the remaining radish W and the radish W in contact with the pulling mechanism 100 are damaged. It is prevented.

  However, the light-emitting body 801 that can secure sufficient illuminance in the dark may make a worker standing behind feel dazzling. As a result, there is a possibility that the operator will not be able to fully recognize the vegetation position of the radish W and the mechanism 100 or the pulling and conveying start end of the pulling and conveying device 200.

  In order to reduce the influence of light other than the front of the machine body, as shown in FIG. 17, the lighting device 800 is configured by providing a light shielding plate 802 and a light emitter 801 at the center of the light shielding plate 802. The light shielding plate 802 covers the back of the light emitter 801 in the vertical and horizontal directions.

  As a result, the influence of light on the rear side of the machine body can be reduced, so that the visibility of the operator is prevented from being lowered, and the radish W left behind and the radish W contacting the raising mechanism 100 are damaged. It is prevented.

  In addition, if the front surface of the body of the light shielding plate 802 is painted black, the light emitted from the light emitter 801 is absorbed, so that the influence of the backward light can be enhanced.

  Alternatively, if the front surface of the body of the light shielding plate 802 is painted white and light emitted from the light emitter 801 is easily reflected to the front side of the body, the front side of the body can be illuminated more brightly, and visibility is improved.

  Alternatively, if the front surface of the body of the light shielding plate 802 is a mirror surface, the light emitted from the light emitter 801 can be reflected more strongly to the front side of the body, so that the visibility on the front side of the body can be further improved. Further, if the light is converged forward by reflection by the mirror surface, the illuminance required for the light emitter 801 can be suppressed, and thus the visibility of the worker behind the vehicle is prevented from being lowered.

  According to the crop drawing machine of the present invention, there is no need to cut the upper end of the main body of the crop by post-processing, and the work efficiency is improved, which is useful as a radish drawing machine or the like.

DESCRIPTION OF SYMBOLS 1 Radish drawing machine 2 Gauge wheel 4 Engine 5 Steering handle 100 Pull-up mechanism 200 Pull-out conveyance device 300 Shoulder alignment device 400 First cutting device 500 Second cutting device

Claims (5)

Crop pullout comprising a pulling mechanism (100) that causes a foliage part (W1) of a crop (W) and a pulling and conveying device (200) that pinches and pulls the foliage part (W1) caused by the pulling mechanism (100) In the machine
A crop pulling machine comprising a protective member (600) for preventing the main body (W2) of the crop (W) from coming into contact with the pulling mechanism (100). The pulling mechanism (100) has a vertical pulling device (110L, 110R) that causes the foliage (W1),
The crop drawing machine according to claim 1, wherein the protective member (600) is provided at least on a lower side of the vertical pulling device (110L, 110R). The vertical pulling device (110L, 110R) includes an outer cover (113a) provided on the left and right outer sides of the machine body, an inner cover (113b) provided on the left and right inner sides of the machine body, the outer cover (113a) and the inner cover (113b). Is provided with an endless belt (112) that is raised between the left and right of
The crop according to claim 2, wherein the protective member (600) is provided at a position covering the front part of the body of the inner cover (113b) and the inner part of the body through which the crop (W) passes sideways. Drawing machine.   The crop puller according to claim 3, wherein a hanging part (601) projecting downward from a lower end part of the inner cover (113b) is formed at a lower part of the protective member (600).   The said protective member (600) was provided in the position which covers the body front part of an outer side cover (113a), and the outer side part of the body which a crop (W) of an adjacent strip passes sideways. The crop drawing machine according to claim 4.