JP5336988B2 - Transplanter - Google Patents

Description

  The present invention relates to a transplanter provided with a seedling supply table that can be rotated to the left and right.

  2. Description of the Related Art Conventionally, a transplanting machine capable of slidingly supplying a spare seedling from a front side of a traveling machine body to a planting work machine connected to a rear part of the traveling machine body through a seedling supply table in a front-rear direction arranged on a side of the traveling machine body is there.

  As an improvement to the transplanter having such a configuration, a seedling supply composed of a mounting base, a connecting base connected to extend forward from the mounting base, and a connecting base connected to extend rearward is provided. A transplanter shown in Patent Document 1 is known in which the horizontal position of the front end side of the seedling supply table can be adjusted when the vehicle is stopped by supporting the table so that it can be pivoted left and right.

JP 2008-177771 A

In the transplanting machine of the above-mentioned document, the seedling supply base is configured to be rotatable left and right, so that the seedling supply base can be arranged at a position suitable for seedling supply work, while the seedling supply base is operated to rotate left and right. For example, it was necessary to grip the front end of the seedling supply stand and perform the rotation operation of the seedling supply stand. There is a problem that seedling supply work to the work machine side may not be performed smoothly.
The present invention solves the above problems, and in a transplanter equipped with a seedling supply stand in the front-rear direction arranged on the side of the traveling machine body, it is possible to easily adjust the left-right position on the front end side of the seedling supply stand. The purpose is to provide a highly convenient transplanter.

In order to solve the above problems, a transplanter of the present invention firstly has a traveling machine body 3 having a front wheel 1 and a rear wheel 2, a planting work machine 6 connected to the rear part of the traveling machine body 3, and a traveling machine body 3. And a seedling supply base 7 in the front-rear direction, which is located on the side of the mounting base 28, a mounting base 28, a connecting base 29 connected to extend forward from the mounting base 28, and a connecting base 31 connected to extend rearward. The seedling supply base 7 is configured from the above, and the mounting base 28 is attached to and supported by the support mechanism 27, so that the seedling supply base 7 is located on the side of the traveling body 3 so that the rotation fulcrum S is located in the support mechanism 27 in a side view. In the transplanting machine that is supported so as to be pivotable to the left and right, a pivoting operation that performs a pivoting operation of the seedling supply stand 7 by a support frame 48 that forms a part of the support mechanism 27 and that supports and fixes the mounting base 28. The seedling supply stand 7 is located at a predetermined left-right rotation position. The Mesuru positioning operation tool 53 provided along a the pivoting operation device 4, the by rotational operating member 48 and the positioning operation member 53, the posture of the seedling supply base 7 by the left and right pivot through a supporting mechanism 27 An operation tool that performs a switching operation is configured , and the operation tool is operated from the side of the rotation fulcrum S so that the operator of the traveling machine body 3 can operate from the front side of the traveling body 3 in front of the traveling part 3 and the front of the steering part 14 It is characterized by extending to the front side.

Secondly , the support mechanism 27 is configured so that the rotation fulcrum S is located on the rear side of the fertilizer tank 23 installed on the side of the front portion of the traveling machine body 3, and on the front upper surface side of the fertilizer tank 23. The rotation operation tool 48 is configured such that a supply port is provided and the front end portion of the rotation operation tool 48 is positioned in front of the supply port .

  According to the transplanter of the present invention configured as described above, both the operator in the control unit and the operator on the front side of the traveling machine body perform the posture switching operation by rotating the seedling supply platform to the left and right. Therefore, the convenience is improved, and there is an effect that the seedling supply work to the planting machine side through the seedling supply stand can be performed more smoothly.

  In addition, a rotation operation tool that performs a left-right rotation operation of the seedling supply table is configured by a front-rear support frame that constitutes a part of the support mechanism and the mounting table is supported and fixed. A positioning operation tool for positioning at a position is provided along the rotation operation tool, and an operation tool for performing a posture switching operation of the seedling supply platform by the rotation operation tool and the positioning operation tool is provided, whereby the support frame is rotated. Since the number of parts is reduced by using the moving operation tool, the structure is simplified and the manufacturing cost is reduced.

  Further, the support mechanism is configured so that the rotation fulcrum is positioned on the rear side of the fertilizer tank installed on the side of the front part of the traveling machine body, and a supply port is provided on the front upper surface side of the fertilizer tank. By configuring the rotation operation tool so that the front end of the rotation operation tool is positioned in front of the mouth, the supply port of the fertilizer tank stored compactly in the lower space of the seedling supply stand is rotated. Since it is arranged between the fulcrum and the front end part of the rotation operation tool, the operation to rotate the seedling supply table by the rotation operation tool to secure the fertilizer supply space and open the upper side of the fertilizer tank, and the fertilizer Since the tank fertilizer replenishment work can be performed at the same position on the front side of the traveling machine body without changing the direction of the body, there is an effect that the work load is reduced. In addition, since the supply port is located on the upper front side of the fertilizer tank, there is an effect that the fertilizer supply work to the fertilizer tank becomes easier. Since the supply port is arranged at a position further away from the moving fulcrum, the upper portion of the supply port can be opened with a smaller amount of rotation.

It is a side view of the riding rice transplanter to which the transplanter of the present invention is applied. It is a top view of the riding rice transplanter to which the transplanter of the present invention is applied. It is a top view of this riding rice transplanter of the state which switched the seedling supply stand to the inward attitude | position. It is a top view of this riding rice transplanter of the state which switched the seedling supply stand to the outward attitude | position. It is a top view of this riding rice transplanter of the state which switched the seedling supply stand to the fertilizer supply attitude | position. It is an upper surface side perspective view of the seedling supply stand in a locked state. It is a lower surface side perspective view of the seedling supply stand in a locked state. It is a lower surface side perspective view of the seedling supply stand of a lock release state. It is an expansion perspective view which shows the structure of a support mechanism.

Embodiments of the present invention will be described below based on the illustrated example.
1 and 2 are a side view and a plan view of a riding rice transplanter to which the transplanter of the present invention is applied. The riding rice transplanter shown in the figure includes a traveling machine body 3 having a pair of left and right front wheels 1, 1 and rear wheels 2, 2 and a planting work machine 6 connected to the rear part of the traveling machine body 3 through a link mechanism 4 so as to be movable up and down. And a seedling supply stand 7 in the front-rear direction disposed on the left and right sides of the traveling machine body 3.

  The planting work machine 6 includes a seedling stage 8 that is steeply inclined upward toward the front, a planting unit 9 that scrapes the seedling placed on the back side of the seedling stage 8 and plantes the seedling on the field. A fertilizer application nozzle (fertilization unit) 11 for applying fertilizer to the vicinity of the planter side of the seedling planted in the field by the planting unit 9 is provided.

  The traveling body 3 has an engine (not shown) fixed on the front side of the body frame 12 supported by the front and rear wheels 1 and 2, covers the engine with a hood 13, and the hood 13 on the body frame 12 It is comprised by installing the control part 14 back. The control unit 14 includes a seat 16 on which an operator is seated, a steering handle 17 disposed in front of the seat 16, and a floor step 18 that is a floor formed between the steering handle 17 of the seat 16. Yes.

  A pair of left and right front steps 19, 19 are provided in front of the floor step 18 in the traveling machine body 3, and a pair of left and right rear steps 21, 21 are provided behind. The left and right front steps 19, 19 are formed at substantially the same height as the floor step 18 and are respectively positioned on the left and right sides of the bonnet 13. The left and right rear steps 21, 21 are formed at a level one step higher than the floor step 18, and are positioned diagonally rearward from the left and right of the seat 16. In addition, step forming bodies 22 are installed on the left and right sides of the rear half of the traveling machine body 3, and the front half of each of the left and right step forming bodies 22 has substantially the same height as the floor step 18. The front wide step 22a is formed, and the rear wide step 22b having the same height as the rear step 21 is formed in the rear half.

  Further, a rectangular parallelepiped fertilizer tank 23 that is long in the front-rear direction for supplying fertilizer to the fertilizer application nozzle 11 is disposed in front of the left and right step forming bodies 22. The fertilizer tank 23 is supported and fixed to the body frame 12 side via a support member 24, and a supply port (not shown) for supplying fertilizer is provided on the front side of the upper surface, and this supply port is closed by a closing lid 26. Has been.

  Each of the left and right seedling supply bases 7 is mounted and supported on the traveling machine body 3 side through a support mechanism 27 so as to be horizontally rotatable, and is disposed so as to cover and protect the upper portion of the fertilizer tank 23 described above. Has been.

  FIG. 3 is a plan view of the riding rice transplanter with the seedling supply stand switched to the inward posture, and FIG. 4 is a plan view of the riding rice transplanter with the seedling supply stand switched to the outward posture. FIG. 5 is a plan view of the riding rice transplanter in a state where the seedling supply platform is switched to the fertilizer supply posture. The left and right seedling supply bases 7 faced inwardly (refer to FIG. 3) from the rear end toward the front end, and turned straight in the front-rear direction from the rear end toward the front end. A forward and backward posture (see FIG. 2) and an outward posture (see FIG. 4) in a posture facing the outer side of the body from the rear end toward the tip, and the fertilizer tank 23 with the tip side facing the outer side of the body further than the outward posture. The fertilizer supply posture (see FIG. 5) in which the upper portion of the supply port is opened is configured to be switchable in posture. Incidentally, the rotation fulcrum S when the seedling supply base 7 is rotated left and right is located in the support mechanism 27 in a plan view and a side view.

  About one third of the seedling supply stand 7 protrudes forward from the traveling machine body 3, and the rear end portion is located on the side of the backrest 16 a of the seat 16 in a side view, and is on the front side of the traveling machine body 3. An operator supplies a spare seedling (not shown) including a mat seedling and a seedling box containing the mat seedling from the front end side of the seedling supply stand 7. Subsequently, an operator on the front side of the traveling machine body 3 or an operator on the front step 19 or on the control unit 14 side slides the spare seedling on the front end side of the seedling supply base 7 to the rear end side. Then, the operator who has moved the preliminary seedling that has moved to the rear end side of the seedling supply stand 7 onto the rear steps 21 and 21 moves the seedling to the seedling placing stand 8 of the planting work machine 6, and the planting work machine 6. To complete the seedling supply.

Next, the configuration of the seedling supply base and the support mechanism will be described in detail with reference to FIGS.
6 and 7 are an upper surface side perspective view and a lower surface side perspective view of the seedling supply table in the released state, FIG. 8 is a lower surface side perspective view of the seedling supply table in the unlocked state, and FIG. 9 is a support mechanism. It is an expansion perspective view which shows the structure of this. The seedling supply stand 7 is composed of three seedling stands 28, 29, 31 arranged in a straight line in the front-rear direction, and a central seedling stand (attachment) in which the center seedling stand 28 is attached and supported by a support mechanism 27. The seedling stand 29 on the front side of the central seedling stand 28 becomes a front seedling stand (connecting stand), and the seedling stand 31 on the rear side of the central seedling stand 28 becomes a rear seedling stand (connecting stand).

  Each of the seedling stands 28, 29, and 31 has a square shape by a pair of left and right side frames 32 and 32 facing in parallel and a left and right side connection rod 33 connecting the left and right side frames 32 and 32. A roller shaft 34 extending in the left-right direction is pivotally supported between the left and right side frames 32, 32 so as to be rotatable around the shaft. , 31 are arranged in parallel in the front-rear direction, and a cylindrical roller 36 having a diameter larger than that of the roller shaft 34 is the same as the roller shaft 34 at the left and right ends of each roller shaft 34. It is formed integrally so as to be a center and rotate integrally with the roller shaft 34. A plurality of rollers 36 arranged in the front and rear form a conveyance surface that is slightly inclined downward toward the rear on the upper surface side of the seedling table. The spare seedling is smoothly slid back and forth.

  The rear seedling table 31 has a pair of left and right connection brackets 37 and 37 fixed to the front end portion of the rear seedling table 31 and a connection bracket 38 and 38 fixed to the rear end portion of the center seedling table 28. By being movably mounted and supported, it is connected to the central seed bed 28 so as to be rotatable up and down. Then, by this vertical rotation, the rear seedling base 31 can be switched between a storage position in which the rear seedling base 28 is folded right above the central seedling base 28 and a deployed posture that extends straight forward from the central seedling base 28 in a side view. Configured.

  The front seedling table 29 is provided with a pair of left and right connection brackets 39, 39 fixed to the rear end portion of the front seedling table 29, and connected to the connection brackets 41, 41 fixed to the front end portion of the center seedling table 28, respectively. By being movably mounted and supported, it is connected to the central seed bed 28 so as to be rotatable up and down. Then, by this vertical rotation, the front seedling table 29 can be switched between a storage posture in which the front seedling table 28 is folded right above the central seedling table 28 and a deployed posture that extends straight forward from the central seedling table 28 in a side view. Configured.

  Further, the front seedling stand 29 is configured to be folded further above the center seedling stand 28 with the rear seedling stand 31 folded. For this reason, when the front and rear seedling stands 29 and 31 are switched to the storage posture, the three seedling stands 28, 29 and 31 are arranged so as to be stacked vertically with a predetermined interval. In this state, each seedling stand is configured so that a spare seedling can be placed on each seedling stand 28, 29, 31.

  In addition, although the example which connected and supported the front seedling stand 29 and the back seedling stand 31 to the central seedling stand 28 so that vertical rotation was possible was demonstrated, the front seedling stand 29 and the back seedling stand 31 were connected to the central seedling stand 29 so that attachment or detachment was possible. Then, the seedling supply stand 7 may be configured so as to switch between a state in which it is attached and arranged in a straight line in the front-rear direction and a state in which it is arranged so as to be stacked in the vertical direction. In this case, the three seedling stands 28, 29, and 31 are held in a state where they are stacked in the vertical direction by configuring the front and rear seedling stands 29 and 31 so as to be detachably attached and fixed to the support mechanism 27 and the like.

  The support mechanism 27 is configured by bending a rod-like member so as to form a reverse U-shape when viewed from the side, and a horizontal frame 42 that is a left-right rod-like member protruding outward from the lower surface side of the body frame 12. A support stay 43 having a pair of front and rear lower ends attached and fixed to the horizontal frame 42 and the body frame 12 respectively, and a box-shaped support that is fixed to the upper side of the support stay 43 and the front side and the side of the traveling body side are opened. A bracket 44, a support pipe 46, which is a vertical tubular member that is integrally installed and fixed between the upper and lower surfaces of the support bracket 44, and is opened on the upper and lower sides, and an axis on the inner peripheral surface side of the support pipe 46 And a movable frame (a rod-shaped member that is integrally protruded forward from the pivot shaft 47 and can be horizontally rotated around the axis of the pivot shaft 47). Support And over arm) 48, and a, a mounting bracket 49 of matching before and integrally extend outward from the movable frame 48.

  A pair of left and right support rods 51, 51 attached to the front and rear mounting brackets 49, 49 by welding or the like are fixed to the connection rod 33 of the central seed bed 28 by welding or the like. 28 is fixedly attached. That is, with the rotation shaft 47 in the support mechanism 27 as the above-described rotation fulcrum S, the seedling supply base 7 is supported on the traveling machine body 3 side so as to be horizontally rotatable.

  At this time, as shown in FIGS. 1 and 2, the rotation fulcrum S is located at the front portion of the rear seedling stand 31 in the deployed posture in a side view, and the boundary between the traveling machine body 3 and the seedling supply stand 7 in a plan view. It will be in the state located in the side of the steering handle 17 in the vicinity. In addition, the front end of the central seedling stand 28 is positioned at the front end of the traveling machine 3 that is in front of the frontmost end portion of the front wheel 1, and the movable frame 48 is between the front end of the central seedling stand 28 and the frontmost end portion of the front wheel 1. The fertilizer tank 23 is disposed immediately below the movable frame 48 when the seedling supply stand 7 is in the front-rear posture, and the rotation fulcrum S of the seedling supply stand 7 is located behind the fertilizer tank 23. doing.

  The movable frame 48 is formed with a front free end bent downward to form a front operation portion 52, and a grip portion 52 a is formed below the front operation portion 52. An operator on the front side of the traveling machine body 3 grips the gripping part 52a to rotate the seedling supply base 7 to the left and right, and an operator on the control part 14 side grips the middle part and the rear end part of the movable frame 48. The seedling supply stand 7 is operated to rotate left and right. That is, the movable frame 48 serves as a rotation operation tool that performs a left / right rotation operation of the seedling supply base 7. In the present transplanter, a lock operation tool (positioning operation tool) 53 for fixing and releasing the right and left rotation position of the seedling supply base 7 is provided along the rotation operation tool 48.

  The lock operation tool 53 is integrally attached to the rotating shaft 47 side, and is a rear bracket 54 that is a channel-shaped member that is U-shaped in a front view and that rotates around the axis of the rotating shaft 47 integrally with the movable frame 48. And an operation shaft 57 in the front-rear direction supported rotatably around the axis between the front operation unit 52 of the movable frame 48 and the front bracket 56 integrally protruding outward is a main member. A rod-shaped front operation portion 58 is integrally formed so as to project downward from the front end of the operation shaft 57, while a rear operation lever (rear operation portion) 59 in the left-right direction is provided at the rear end portion of the operation shaft 57. The traveling body 3 is integrally projected toward the control unit 14 side. That is, the front operation unit 58 and the rear operation lever 59 are integrally swung as the operation shaft 57 rotates around the axis.

  The rear operation lever 59 is configured to be operable by an operator in the control unit 14, and the protruding half is bent so as to incline obliquely upward in the protruding direction. The pin 61 is rotatably supported. The locking pin 61 is inserted into and supported by the rear bracket 54 so as to be movable in the axial direction, and the locking pin 61 moves up and down by operating the rear operation lever 59 up and down. On the other hand, on the upper surface of the support bracket 44 located below the locking pin 61, a plurality of (four in the illustrated example) locking holes arranged along the arc-shaped movement locus of the locking pin 61 are provided. 44a is drilled so that the locking pin 61 can be inserted.

  Then, by inserting the locking pin 61 into any of the plurality of locking holes 44a, the seedling supply base 7 is positioned and fixed at a predetermined left-right rotation position. In addition, the upper surface of the rear bracket 54 The locking pin 61 is always urged to the lower side, which is a side to be inserted into the locking hole 44a, by a compression spring 62 which is positioned between the rear operating lever 59 and is mounted on the locking pin 61. That is, at least four locking holes 44 a are formed in the support bracket 44 in correspondence with the above-mentioned inward posture, the front-back posture, the outward posture, and the fertilizer supply posture of the seedling supply stand 7.

  A specific operation means will be described. The front operation portion 58 is swung to the side close to the front operation portion 52 of the movable frame 48 against the elastic force of the compression spring 62, or the rear operation lever 59 is operated. Is pivoted upward, the locking pin 61 moves upward and is pulled out of the locking hole 44a, the lock is released, and the seedling supply base 7 is in a state in which it can be rotated left and right. Incidentally, at this time, the front operation unit 58 of the lock operation tool 53 can be gripped together with the front operation unit 52 from the state separated from the front operation unit 52 of the movable frame 48 and can be brought close to the front operation unit 52. Therefore, the worker on the front side of the traveling machine body 3 can smoothly perform the unlocking operation and the horizontal rotation operation of the seedling supply base 7 with one operation.

  On the other hand, when the seedling supply stand 7 is switched to any one of the inward posture, the front and rear posture, the outward posture, or the fertilizer supply posture, the hand is released from the front operation tool 58 and the rear operation lever 59 of the lock operation tool 53. Due to the elastic force of the compression spring 62, the locking pin 61 moves downward and is inserted into the corresponding locking hole 44a, so that the right and left rotational position of the seedling supply base 7 is fixed. Incidentally, since the plurality of locking holes 44a are arranged on the movement trajectory of the locking pin 61, if the seedling supply base 7 is roughly adjusted in the left-right rotation position, and then finely rotated at that position, The locking pin 61 urged downward is naturally inserted into the locking hole 44a.

  Further, a regulation pin 63 is integrally projected from the rear bracket 54 toward the support bracket 44 side, and the support bracket 44 follows the movement locus of the regulation pin 63 when the seedling supply base 7 is rotated left and right. An arc-shaped restricting hole 44b is formed, and the restricting pin 63 is always inserted into the restricting hole 44b and moves in the restricting hole 44b. For this reason, the lateral rotation range of the seedling supply base 7 is limited to the range in which the regulation pin 63 moves in the regulation hole 44b. In the illustrated example, the seedling supply stage is between the inward posture and the fertilizer supply posture. 7 is limited.

  As described above, the lock operation tool 53 and the rotation operation tool 48 extending forward from the rotation fulcrum S side constitute an operation tool for performing the posture switching operation of the seedling supply stand 7. It is configured to be operable from either the part 14 side or the front side of the traveling machine body 3 located on the front side of the control part 14. Then, in a plan view, the front operation unit 58 and the front operation unit 52 located in front of the fertilizer tank 23 are used to open the top of the fertilizer tank 23 and supply the fertilizer from the supply port on the front upper surface side of the fertilizer tank 23 Work can be easily performed.

DESCRIPTION OF SYMBOLS 1 Front wheel 2 Rear wheel 3 Traveling machine body 6 Planting work machine 7 Seedling supply stand 14 Control part 23 Fertilizer tank 27 Support mechanism 28 Central seedling stand (mounting stand, seedling stand)
29 Front seedling stand (consolidation stand, seedling stand)
31 Back seedling stand (consolidation stand, seedling stand)
48 Movable frame (rotating operation tool, support frame)
53 Locking operation tool (positioning operation tool)
S Rotation fulcrum

Claims (2)

A traveling machine body (3) having a front wheel (1) and a rear wheel (2), a planting work machine (6) connected to a rear portion of the traveling machine body (3), and a side of the traveling machine body (3) It is provided with a seedling supply base (7) in the front-rear direction, and is connected so as to extend backward from the mounting base (28), the connecting base (29) connected so as to extend forward from the mounting base (28). A seedling supply stand (7) is constituted from the connection stand (31), and the attachment stand (28) is attached to and supported by the support mechanism (27) so that the rotation fulcrum (S) is supported by the support mechanism (27) in a side view. In the transplanting machine in which the seedling supply base (7) is supported on the traveling machine body (3) side so as to be positioned in the left and right direction so as to be located inside, the support base (28) is supported and fixed as a part of the support mechanism (27). The rotating operation tool for rotating the seedling supply base (7) to the left and right is configured by the support frame (48) in the front-rear direction. A positioning operation tool (53) for positioning the seedling supply stand (7) at a predetermined left-right rotation position is provided along the rotation operation tool (48), and the rotation operation tool (48) and the positioning operation tool are provided. (53) constitutes an operating tool for performing a posture switching operation of the seedling supply platform (7) by rotating left and right via the support mechanism (27), and a control unit (3) on which the operator of the traveling machine body (3) gets in 14) The transplanter in which the operation tool is extended from the rotation fulcrum (S) side to the front side so that it can be operated from the front side of the traveling machine body (3) in front of the 14) side and the control unit (14). The support mechanism (27) is configured so that the rotation fulcrum (S) is positioned on the rear side of the fertilizer tank (23) installed on the front side of the traveling machine body (3), and the fertilizer tank (23). The transplanting machine according to claim 1 , wherein a supply port is provided on an upper surface side of the front portion of the lip, and the rotation operation tool (48) is configured such that a front end portion of the rotation operation tool (48) is positioned in front of the supply port .

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