JP2005333925A - Vegetable transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the following problems: in a conventional vegetable transplanter, a machine body becomes large, as a seedling-putting stand protrudes outward of the machine body, as structural bodies make trouble when the seedling-putting stands move through a narrow passage to cause contacts and the like, a large area is required for storing the transplanter, distribution expense becomes higher as the machine size is large during the distribution, and so forth. <P>SOLUTION: The vegetable transplanter 101 is a walking type one, installed with a transplantation hole-opening device 151 having a pair of front claws 128 and a pair of rear claws 129 to be movable upward and downward and the transplantation hole-opening device 151 functions to hold seedlings in a closed state and let the seedlings fall down in an open state. The seedling-putting stands 81L, 81R for putting seedling trays are brought to be rotatable toward over a handle frame 106 from the front position of an operator 102 in a planer view of the machine body. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a walking-type vegetable transplanter that inserts seedlings such as onion, cabbage, and celery into a supply cup provided at the top of the aperture device and transplants the seedling into a basket in the field using the aperture device. It relates to the seedling stand of the machine.

Conventionally, there is a walking type vegetable transplanter that is installed so that the transplanter can be opened and closed and can be moved up and down, and the transplanter operates to hold the seedlings in the closed state and to drop the seedlings in the open state In this type of transplanter, various techniques relating to the seedling stage have been devised.
For example, as disclosed in Patent Document 1, in the working state, the rotating seedling platform is rotated to the side of the supply table, and in the housed state, the technology is arranged in a form biased to the left and right outer sides of the machine body and the front side. It is disclosed.

JP 2002-51618 A

  In the conventional vegetable transplanting machine, the technique shown in Patent Document 1 has problems such as contact because the structure becomes an obstacle when the body becomes large and moves in a narrow passage because the seedling stand protrudes outward from the body. It is necessary to generate and store a large area, and the number of trucks and the like that can be loaded during distribution is limited, increasing the distribution cost.

  Therefore, in view of these points, in the present invention, it is possible to dispose the seedling stage above the vegetable transplanter when not working, and it is possible to move in a narrow passage by reducing the size, and the area of the storage place is reduced. An object is to reduce the distribution cost.

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
In other words, in claim 1, the transplanting aperture 151 having the pair of front nail body 128 and the rear nail body 129 is installed so as to be openable and closable up and down, and the transplanting aperture 151 is closed in the closed state. In the walk-type vegetable transplanter 101 that operates so as to drop the seedlings in an open state, the seedling platforms 81L and 81R on which the seedling trays are placed are viewed from the front side of the operator 102 in a plan view of the body frame 106. It is comprised so that rotation above this is possible.

  In claim 2, a plurality of seedling platforms 81L and 81R on which the seedling tray is placed are superposed and disposed above the handle frame 106.

  In claim 3, the plurality of seedling platforms 81L and 81R on which the seedling tray is placed are rotated upward from the front position of the operator 102 to the rear of the transmission case 104 and above the handle frame 106 in plan view of the body. The driving operation unit 109 operated by the operator 102 is provided behind the handle frame 106, and the plurality of seedling platforms 81L and 81R are arranged in front of the driving operation unit 109. .

The above invention is preferably embodied as follows.
That is, in claim 4, the transplanting aperture 151 having a pair of front nail body 128 and rear nail body 129 is installed so that it can be opened and closed and moved up and down, and the transplanting aperture 151 is closed in a closed state. In the walk-type vegetable transplanter 101 that operates to drop seedlings in an open state, the left and right seedling mounting platforms 81L and 81R on which the seedling trays are placed are transmitted from the front position of the operator 102 in plan view of the body. It is configured to be rotatable above a handle frame 106 extending rearward from the upper part of the case 104, and a driving operation unit 109 operated by an operator 102 is provided at the rear end portion of the handle frame 106. The seedling platforms 81L and 81R are superposed on the front side and disposed between the transmission chain cases 16 and 16 for transmitting power to the left and right rear wheels 17 and 17.

According to the present invention, the following effects can be obtained.
That is, according to the first aspect of the present invention, the transplant aperture 151 having the pair of front nail body 128 and the rear nail body 129 is installed so as to be openable and closable and vertically movable. In the walk-type vegetable transplanter 101 that operates to hold the seedlings in the closed state and drop the seedlings in the open state, the seedling mounting bases 81L and 81R on which the seedling trays are placed are positioned in front of the operator 102 in the body plan view. Since it is configured so that it can be rotated upward from the handle frame 106, the seedling platform that protrudes from the machine body is stored within the machine body width, so that it can be reduced in size, avoiding contact with the structure, and moving even in narrow passages. Furthermore, in the case of transplantation work in house cultivation, the seedling tray is placed on the seedling platform that is polymerized above the handle frame, so that the upper limit is restricted at the time of transplantation or in narrow places such as corners. Work is possible It made. In addition, storage is possible in a narrow storage space, and the number of trucks that are transported during distribution increases, thereby reducing distribution costs.

  According to the second aspect of the present invention, in addition to the effect of the first aspect, the handle frame is obtained by superposing the plurality of seedling platforms 81L, 81R on which the seedling tray is placed above the handle frame 106. It is possible to rotate and superpose the seedling table from the left and right directions above 106, and to place auxiliary equipment such as an empty seedling tray on the seedling table.

  According to the third aspect of the present invention, the plurality of seedling platforms 81L and 81R on which the seedling trays are placed are extended from the front position of the operator 102 to the rear from the upper part of the mission case 104 in the plan view of the machine body. A driving operation unit 109 operated by an operator 102 is provided at the rear of the handle frame 106, and the plurality of seedling platforms 81L and 81R are arranged in front of the driving operation unit 109. As a result, in addition to the effects described in claims 1 and 2, the moving work can be performed by the power of the engine 103 in a narrow place, the work for moving in the narrow place is reduced, and the storing work is facilitated.

According to the fourth aspect of the present invention, the transplanting aperture 151 having the pair of front nail body 128 and the rear nail body 129 is installed to be openable and closable and vertically movable, and the transplanting aperture 151 is closed. In the walk-type vegetable transplanter 101 that operates to hold the seedlings and drop the seedlings in an open state, the left and right seedling mounting platforms 81L and 81R on which the seedling trays are placed are positioned in front of the operator 102 in plan view. And a driving operation unit 109 that is operated by the operator 102 at the rear end of the handle frame 106, and is configured to be rotatable. The seedling mounting bases 81L and 81R are overlapped in front of 109 and disposed between the transmission chain cases 16 and 16 for transmitting power to the left and right rear wheels 17 and 17. Other effects of the third aspect, inspection, inspection of the work place is widened machine to confirm, thereby improving easy workability check maintenance or the like.
In addition, the storage location can be narrowed (does not take up space).

A vegetable transplanter 101 according to the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing an overall configuration in which a seedling stage of a vegetable transplanter 101 is stored.
FIG. 2 is a plan view showing the entire configuration of the vegetable transplanter 101 in which the seedling stage is stored.
FIG. 3 is an overall plan view of the vegetable transplanter 101 during operation.
FIG. 4 is a side view of the main part when the vegetable transplanter 101 is in operation.
FIG. 5 is a plan view of the main part of the vegetable transplanter 101.
FIG. 6 is a rear side view of the seedling mount of the vegetable transplanter 101.
FIG. 7 is a plan view of the handle of the vegetable transplanter 106.
FIG. 8 is a side view showing an elevating mechanism of the transplant aperture 151. FIG.
FIG. 9 is a rear view showing the lifting mechanism of the transplant aperture 151.
FIG. 10 is a plan view showing a guide mechanism of the transplant aperture 151. FIG.
FIG. 11 is a side view showing a guide mechanism of the transplant aperture 151.

First, the overall configuration of the vegetable transplanter 101 will be described.
As shown in FIG. 1 to FIG.
When the moving aperture 151 is lifted, seedlings are manually put into the supply cup 160a one by one, and the front nail body 128 and the rear nail body 129 of the transplant aperture 151 are moved into the basket 45 in a closed state. Then, the farming machine performs the transplanting of the seedling 46 by opening the claw portions 128, 129 of the transplanting aperture 151.

  The body frame of the vegetable transplanter 101 includes an engine frame 24, a handle frame 106, a working unit support frame 105, a mission case 104, and the like.

  The engine 103 is placed on the engine frame 24 constituting the front part of the chassis, the mission case 104 is arranged on the front and rear center part of the chassis, and the upper part of the upper part of the engine 103 covers the upper part of the front end part of the transplanter 30. A bonnet 107 is provided, and on the upper surface of the bonnet 107, a speed change lever 113 for switching the traveling speed of the vegetable transplanter 101, an adjustment handle 116 for finely adjusting the stock distance, and the like are provided.

  As shown in FIGS. 1 to 3, the front wheel pivot support shaft 10 is horizontally mounted in the horizontal direction at the front portion of the chassis, and the front wheel support is supported on the left end portion and the right end portion of the front wheel pivot support shaft 10, respectively. The upper end portions of the front wheel support arms 11 and 11 serving as the body are attached. The front wheel support arms 11 and 11 are configured to be rotatable with respect to the chassis, and front wheels 12 and 12 that are driven wheels at the lower ends of the front wheel support arms 11 and 11 are rotatably attached.

Further, rear wheel drive shafts 15 and 15 are provided so as to protrude from the transmission case 104 to the left and right sides, and rear wheel support pipes 21 and 21 are arranged outside the rear wheel drive shafts 15 and 15, respectively. An upper end portion of a chain case 16 serving as a rear wheel support is fixed to the outer end portion of the support pipe 21.
The chain cases 16 and 16 are configured to be rotatable with respect to the chassis, and a rear wheel 17 as a driving wheel is supported at a lower end portion of each chain case 16.

As shown in FIGS. 1 to 4, the transplanting device 30 is provided with a transplanting device 30 for transplanting seedlings below the handle frame 106 at the rear part of the mission case 104, and transplanting the seedlings into the transplanting device 30. A hole device 151 is provided, and guide means 153 for moving the transplant hole device 151 up and down is configured.
The transplanting aperture 151 receives the seedling at the uppermost position by the guide means 153, opens the nail bodies 128, 129 at the lower end position to drop the seedling into the ridge 45, and then seeds the seedling by the cover ring 22 arranged on the rear side. The soil is brought close to the base of 46 and covered.

As shown in FIGS. 4, 8, and 9, the transmission of power to the transplant device 30 is provided with a working unit drive shaft 114 extending leftward from the inside of the rear upper part of the mission case 104.
The working unit drive shaft 114 is fixedly provided with a sprocket 127 that drives the transplanter 151 provided in the transplanter 30 up and down.
Power is transmitted from the sprocket 127 to the rotary case 152 via the chain 331 to drive the transplanter 30.

Next, as shown in FIGS. 4, 5, and 7, the handle frame 106 extends leftward from the upper part of the mission case 104 in the horizontal direction and is bent upward from the rear end thereof. The right handle frame 6R is integrally formed in a U-shape.
The front end portion of the handle frame 106 is fixed to both upper side portions of the mission case 104 with fastening members.

  A connecting plate 93 for connecting the left handle frame 6L and the right handle frame 6R is provided at the lower part of the front and rear center of the handle frame 106, and the working plate support frame 105 extending from the connecting plate 93 and the rear lower part of the transmission case 104 is provided. Is fixed with a fastening member.

  A driving operation unit 109 is configured at the rear of the handle frame 106, and the driving operation unit 109 includes operation levers such as a main clutch lever 110, a body lifting lever 120, a planting depth adjustment lever 125, and the like.

  As shown in FIGS. 5 and 7, the handle frame 106 has a reverse U-shape (U-shape) directed inward from the start end portion fixed to the mission case 104 to the rear and the front and rear center portions. The formed attachment portions 6e and 6f are welded. Holes 6g into which seedling mounting frames 83L and 83R, which will be described later, can be inserted are formed in the mounting portions 6e and 6f in the vertical direction, and further, bolts and nuts for fixing the seedling mounting frames 83L and 83R are formed on the side portions. A fixture 85 is provided.

  As shown in FIG. 7, the connecting plate 93 is provided with an arc-shaped notch 93a having a space that does not affect the operation of the supply cup 160a provided at the rear of the mission case 104, and is erected at the front end thereof. A partition wall 93b is provided, and attachment holes 93c for connecting and fixing the working unit support frame 105 are provided at several locations.

As shown in FIGS. 4 and 7, the working unit support frame 105 extends a mission case mounting bracket 105 a provided at the rear lower end of the mission case 104 in the left-right direction, and connects the end of the case mounting bracket 105 a to the connection portion. A support frame 105b formed in a substantially inverted letter shape in a side view and a fixture 105c formed in a plate-like long square shape at the end of the support frame 105b are fixed in an inverted U shape toward the plate 93. doing.
The working unit support frame 105 and the handle frame 106 are fixed by fastening members, and a triangular frame is formed by the transmission case 104, the support frame 105, and the handle frame 106 to increase the strength.

As shown in FIGS. 4, 5, and 6, the seedling mounts 81L and 81R are formed in a substantially cross shape in plan view by joining an elongated rectangular frame 81a and a rectangular frame 81b wider than the rectangular frame 81a. Both end portions 81d and 81d of the elongated rectangular frame 81a are bent upward, and the end portion 81e of the wide rectangular frame 81b is also bent upward, and the other is bent downward. The seedling mounting bases 81L and 81R are attached by being inserted into mounting holes 83d provided in the horizontal parts 83b of the seedling mounting base frames 83L and 83R described later.
Further, the rectangular seedling tray is placed in engagement with the end portions 81d and 81e bent upward.

  As shown in FIGS. 5 and 6, the seedling frame 83L, 83R includes a vertical part 83a and a horizontal part 83b extending from the upper end of the vertical part 83a to the one side, and the lower part of the vertical part 83a is It is inserted into the mounting holes 6g and 6g of the mounting portions 6e and 6e of the handle frame 106, and fixed by a fixing tool 85 composed of a bolt and a nut.

  The operation to the work position (FIG. 3) is as shown in FIG. 6. The height of the seedling platforms 81L and 81R is the mounting hole 6g provided in the handle frame 106, and the vertical portion 83a of the seedling platforms 83L and 83R is As shown in FIG. 5, the seedling stage frames 83L and 83R are moved from the storage position (shown by solid lines) to the working position (shown by virtual lines) (right to left). Since it is configured to rotate to A, the seedling table 83 can be fixed by tightening the fixing tool 85 when the worker 102 is set at a position where it is easy to work.

When the vegetable transplanter 101 is moved on a narrow road, or when maintenance inspection or maintenance is performed, or when the vegetable transplanter 101 is stored in a barn or the like, the handle frame 106 is moved from the working position of the left nursery stand 81L (imaginary line in FIG. 5). Is rotated in the right A direction to the upper surface of FIG. 5 (solid line in FIG. 5), and then the left nursery stand 81L is fixed by tightening the left fixture 85 at an arbitrary height in the downward direction B.
Subsequently, the right seedling platform 81R is rotated from the working position (virtual line in FIG. 5) to the upper surface of the handle frame 106 (solid line in FIG. 5) in the left A direction, and the right seedling platforms 81L and 81R are fixed at the right and left positions. The body width can be reduced by tightening the tool 85.

  Further, a stopper may be formed on the vertical portion 83a of the seedling stage frame 83L (83R) so that the seedling stage frame 83L (83R) does not fall below a predetermined height. Specifically, a convex part is formed in the middle of the vertical part 83a of the seedling stage frame 83L (83R), and the convex part is formed at the edge of the mounting holes 6e and 6e of the left and right handle frames 6L and 6R. When hooked, the seedling stage frame 83L (83R) is at the lowest position, and the lower end position of the horizontal portion 83b of the seedling stage frame 83L (83R) is provided at the lowest position.

  Next, the configuration of the driving operation unit 109 will be described. As shown in FIGS. 1 to 4, the main clutch lever 110 is disposed at the left rear portion of the handle frame 106, and the accelerator lever 112, the aircraft elevating lever 120, and the planting depth adjusting lever 125 are disposed at the right rear portion. A side clutch lever 115 is arranged at the rear end to improve the operability of various operation levers.

  The left handle frame 6L is attached with a main clutch lever guide 111, a guide hole in the front-rear direction is formed in the main clutch lever guide 111, and the main clutch lever 110 is inserted into the guide hole so as to be rotatable in the front-rear direction.

A belt tension type clutch mechanism (not shown) is provided between the output shaft of the engine 103 and the input shaft of the transmission case 104, and the lever arm of the clutch mechanism and the main clutch lever 110 are connected via a wire or the like. It is connected.
The main clutch lever 110 is turned on and off at the front end position of the guide hole of the main clutch lever guide 111 and turned off at the rear end position, and the clutch mechanism is turned on and off by operating the main clutch lever 110. The transmission power from the engine 103 to the transmission case 104 is connected or disconnected.

The main clutch lever 110 is connected to a brake mechanism (not shown) of the transmission case 104 via a wire or the like.
A brake shaft is disposed in the transmission case 104 in parallel with the input shaft, an output sprocket and a brake drum are provided on the brake shaft, and a space between the output sprocket and the input sprocket on the input shaft. The brake drum can be braked by press-contacting a brake shoe via a cam mechanism.
The arm attached to this cam mechanism is connected to the main clutch lever via a wire or the like, the main clutch lever 110 releases the brake mechanism at the on position, and the brake mechanism operates at the off position to brake the vegetable transplanter 101. Let

Further, side clutch levers 115 are attached to the rear end portions of the left and right handle frames 6L and 6R so as to be rotatable up and down.
Side clutch mechanisms are provided between the input shaft of the mission case 104 and the left and right rear wheel drive shafts 15 and 15 respectively, and the clutch arms provided on the left side and the right side of the mission case 104 are rotated. As a result, power to the rear wheel drive shafts 15, 15 can be connected and disconnected, and the clutch arms are connected to the side clutch lever 115 via wires.

On the other hand, an accelerator lever 112 is attached to the right rear portion of the right handle frame 6R so as to be pivotable up and down, a body lifting lever 120 is disposed behind the accelerator lever 112, and a planting depth adjusting lever 125 is disposed below. .
The accelerator lever 112 is connected to the throttle lever on the right side of the engine 103 through a wire or the like, and the throttle lever is rotated by operating the accelerator lever 112 to drive the throttle valve in the carburetor to fuel air and fuel. It adjusts as a gas body and is comprised so that the rotation speed of the engine 103 may be adjusted.

The airframe elevating lever 120 is inserted into an airframe elevating lever guide 121 attached to the right rear portion of the handle frame 106 so as to be pivotable back and forth and left and right.
The airframe elevating lever guide 121 includes a first guide hole formed in the front-rear direction and a second guide hole formed inwardly (leftward) from the front-rear center portion of the first guide hole.
The airframe elevating lever 120 is configured to be in the airframe descending position at the front end position of the first guide hole of the airframe elevating lever guide 121 and in the airframe rising position at the rear end position, and further, the inner end position (left end position) of the second guide hole. ), The airframe lifting lever 120 is disposed between the engine 103 and the transmission case 104 via the wire and the planting depth adjusting link mechanism 122, and is located on the right side of the hydraulic pump 27. The lever arm 29 is connected.
By operating the airframe lifting lever 120, the lever shaft 75 on the right side of the hydraulic pump 27 is rotated, and the hydraulic cylinder 28 arranged below the hydraulic pump 27 is operated so that the airframe body is moved up and down by the airframe lifting link mechanism. It is configured.

The body lifting lever 120 includes a cover ring lifting / lowering mechanism (not shown) that lifts and lowers the cover ring 22 via a wire and a lock mechanism (not shown) that fixes the position of the cover ring 22 via a wire and the like. Each is linked.
The cover ring raising / lowering lever 130 is attached to a frame extending between the middle part of the working unit support frame 105 below the center of the handle frame 106 so as to be vertically rotatable and extends obliquely rearward.
The middle part of the front and rear of the cover ring raising / lowering lever 130 is connected to the cover ring raising / lowering mechanism (not shown) and the lock mechanism (not shown), respectively, and the cover ring 22 is suspended from the rear part of the cover ring raising / lowering lever 130, The cover ring 22 is configured to be lifted and lowered manually by operating the cover ring lifting / lowering lever 130 and also to be lowered by operating the body lifting / lowering lever 120.

When the airframe elevating lever 120 is rotated forward and set at the airframe lowering position of the airframe elevating lever guide 121, the airframe main body starts to descend, the lock mechanism is released, and the cover ring 22 is moved by the cover ring elevating mechanism. Rotate downward.
On the other hand, when the airframe lifting lever 120 is rotated rearward and set to the airframe rising position of the airframe elevating lever guide 121, the airframe body starts to rise, the lock mechanism is released, and the cover ring 22 is manually rotated upward. .

The planting depth adjusting lever 125 is suspended from the right rear portion of the right handle frame 6R and is inserted into the planting depth adjusting lever guide 126 so as to be pivotable up and down.
A guide hole is formed in the planting depth adjustment lever guide 126 in the vertical direction, and a plurality of locking holes are formed along the guide hole.
This locking hole is formed outward from the guide hole (to the left). After turning the planting depth adjustment lever 125 up and down, it is lightly pushed outward (to the left) to obtain the desired locking hole. It is comprised so that it may engage with.
By changing the locking hole with which the planting depth adjustment lever 125 is engaged, the elevation of the machine body can be finely adjusted.

  As shown in FIG. 1, a support arm 53 is supported from the engine frame 24 so as to rotate obliquely rearward, and a saddle sensor roller 50 is attached to a rear end portion of the support arm 53. The rotating shaft of the roller 50, the front end portion of the planting depth adjusting lever 125, and the lever arm 29 of the hydraulic pump 27 are connected by the planting depth adjusting link mechanism 122, respectively.

  The lever arm 29 is rotated by rotating the planting depth adjusting lever 125, and an opening / closing knob (not shown) of the hydraulic pump 27 is opened and closed to supply oil to the hydraulic cylinder 28, and oil flows out from the hydraulic cylinder 28. The cylinder rod of the hydraulic cylinder 28 advances and retreats, whereby the machine body lifting link mechanism operates, and the machine body body moves up and down, and the height from the top surface of the ridge 45 to the bottom surface of the body body is increased by the planting depth adjustment link mechanism 122. It is configured to adjust the height of the fuselage body so that is kept constant.

The seedling transplanting device 30 will be described with reference to FIGS.
A transplanting device 30 is arranged at the rear of the mission case 104, and the seedling transplanting device 30 is provided with a transplanting hole device 151 that opens and closes and moves up and down.
The transplant hole opening device 151 is configured to hold the seedling 46 in a closed state and drop the seedling 46 in an open state.

  When the transplanter 151 reaches the vicinity of the top dead center, a seedling is manually introduced into a supply cup 160a provided on the upper part of the transplanter 151, and the seedling passes through the supply cup 160a and is transplanted. Naturally falls from above the container 151.

Moreover, the transplant hole opening device 151 enters into the cocoon 45 on the bottom dead center side to be in an open state, forms a planting hole for the seedling 46 in the cocoon 45, and drops the seedling 46 into the planting hole.
Then, as shown in FIG. 1 to FIG. 4, the soil covering the root of the seedling 46 is covered with the soil covering rings 22, 22 arranged at the rear of the transplanting device 30 to complete the transplanting operation.

Next, the lifting mechanism of the transplant aperture 151 will be described with reference to FIGS.
A rotary case 152 is disposed on one side of the left and right of the transplant aperture 151 (left side in this embodiment), and guide means 153 guides the elevation of the transplant aperture 151 on the other side of the transplant aperture 151. Are provided in the vertical direction, and in addition to these, an arm 157 and a link (not shown) for connecting them are configured.
The rotary case 152 is supported by the machine frame, the guide means 153 is fixed to the working unit support frame 105, and the transplant aperture 151 is disposed between the rotary case 152 and the guide means 153. The transplant aperture 151 Is configured to move up and down.

A sprocket 155 is fixed to the side surface of the rotary case 152, a chain 331 is wound between the sprocket 155 and the sprocket 127, and power is transmitted from the working unit drive shaft 114 to the rotary case 152 so that the rotary case 152 It is configured to rotate.
A fulcrum shaft (not shown) that rotatably supports the center line of the sprocket 155 is inserted into the rotary case 152.
The fulcrum shaft (not shown) is fitted into the working unit support frame 105.

Accordingly, the rotary case 152 rotates together with the sprocket 155 in the arrow direction (clockwise direction in the left side view) f0 around the fulcrum shaft (not shown).
The rotation of the rotary case 152 causes the gears, shafts, and the like in the rotary case 152 to rotate, and the arm 157 provided at one end of the rotary case 152 is approximately 2 in the direction f2 opposite to the rotational direction of the rotary case 152. Driven at double speed.

An aperture support shaft 159 is fixed to the other end of the arm 157 (the end on the side opposite to the rotary case 152), and the aperture support shaft 159 supports the transplant aperture 151. 160 is rotatably inserted.
The aperture support shaft 159 moves up and down while drawing an elliptical orbit by a moving body that moves by obtaining the power of the engine 103 via the rotary case 152 and the arm 157.
Then, the transplanting aperture 151 supported by the aperture support shaft 159 also moves along the elliptical orbit together with the aperture support shaft 159.

Here, the rotary case 152 and the arm 157 rotate on a plane perpendicular to the left-right direction and are not biased in the left-right direction.
For this reason, the elliptical orbit drawn by the aperture support shaft 159 is also an elliptical orbit including a longitudinal direction (advancing direction of the machine body) and a vertical deviation, and does not deviate in the horizontal direction.

  Therefore, in order to control the posture of the transplant aperture 151, at least the longitudinal movement of the transplant aperture 151 needs to be regulated, and the guide means 153 that functions as the longitudinal motion regulating means, and the guide body 171 that guides this guide means 171. It is.

Further, the transplanter 151 is moved up and down by the drive of the rotary case 152 and the arm 157 by the opener support shaft 159 that supports the transplanter 151.
That is, the transplanter 151 has a configuration in which the aperturer support shaft 159 is moved up and down, and the guide body 171 is moved up and down in accordance with the lifter support shaft 159. In some cases, an unbalanced load is applied.
The guide means 153 and the guide body 171 are configured such that the guide body 171 does not fall off from the guide means 153 when the above-described offset load is applied, so that the transplant hole opener 151 is ascended and lowered.

The transplant aperture 151 includes a pair of front and rear nail bodies 128 and 129 that open and close in a beak shape, and the front nail body 128 and the rear nail body 129 are pivotally supported by pivot shafts 164 and 164. .
The transplant aperture 151 is opened and closed by swinging the front nail body 128 and the rear nail body 129.

The transplant aperture 151 is supported by an aperture support 160, and a guide body 171 guided by the guide means 153 is fixed to the aperture support 160, and an opening / closing cam 161 and the like are associated with each other. .
A spring 169 is interposed between the supply cup 160a fixed to the aperture supporter 160 and the pivot shaft 164, and the front nail body 128 and the rear nail body 129 are in a closed state. It is energized as follows.

The opening / closing cam 161 is fixed to the aperture support shaft 159 that connects the rotary case 152 and the aperture supporter 160 together with the arm 157, and is integrated with the arm 157 as the transplant aperture 151 is moved up and down. Rotate to.
The opening / closing cam 161 and the rear claw body 129 are interlocked with each other through the link 165 by the rotation of the opening / closing cam 161, so that the front claw body 128 and the rear claw body 129 are opened and closed.
The supply cup 160a has a funnel shape, and the upper edge supply port 160b is a supply port 160b suitable for the type and size of the seedling to be transplanted, and the stem and cotyledon of the transplanted seedling are hung on the supply cup 160a. The shape is suitable for each transplanted seedling so that it does not take an unnatural posture when dropped into the front nail body 128 and the rear nail body 129 from the supply cup 160a.

A configuration for guiding the raising and lowering of the transplant aperture 151 will be described.
As described above, the guide means 153 provided on the machine frame of the vegetable transplanter 101 is fixed to the transplant aperture 151 and the guide body 171 is guided to guide the raising and lowering of the transplant aperture 151. .

As shown in FIGS. 8 to 11, the guide means 153 includes front and rear guide rails 253 and left and right guide rails 254.
As shown in FIG. 10, both guide rails 253 and 254 have a U-shaped cross section in the extending direction (vertical direction).

The front and rear guide rails 253 are arranged so that the open side of the U-shaped cross section faces the left side, and a front and rear guide roller 173 described later is inserted from the open side, that is, from the left side.
The left and right guide rails 254 are arranged so that the open side of the U-shaped cross section faces the front side, and the left and right guide rollers 174 described later are inserted from the open side, that is, from the front side.

  Also, as shown in FIGS. 8 and 9, the guide means 153 is supported between the right front end portion of the handle frame 106 and the left working portion support frame 105.

As shown in FIG. 8 to FIG. 11, the guide body 171 provided in the transplantation aperture 151 includes a base frame 177 serving as a main body.
The base frame 177 has an L shape in plan view in which the front and rear plate portions 177a and the left and right plate portions 177b are connected.
Further, a guide body support shaft 170 is fixed to the front and rear plate portions 177a so as to penetrate in the left-right direction, and the aperture supporter 160 of the transplant aperture 151 is supported on the left side of the guide body support shaft 170. .
On the left side of the transplant aperture 151, as described above, it is supported by the aperture support shaft 159 that moves along the elliptical orbit.

The guide body 171 includes a bearing, and includes front and rear guide rollers 173 and 173 and left and right guide rollers 174 and 174.
A pair of front and rear guide rollers 173 are provided above and below the base frame 177, the upper guide roller 173 is supported on the outside (right side) of the guide body support shaft 170, and the lower guide roller 173 is supported on the guide body support shaft 170. It is supported by a horizontal support shaft 175 provided in parallel below.

The front and rear guide rollers 173 and 173 are inserted into the front and rear guide rails 253 and are slidable along the forming direction (vertical direction) of the front and rear guide rails 253.
The left and right guide rollers 174 and 174 are supported by a support shaft 176 in the front-rear direction, inserted into the left and right guide rails 254, and are slidable along the formation direction (vertical direction) of the left and right guide rails 254. Yes.

The support shafts 175 and 176 are fixed to a base frame 177 that is a main body of the guide body 171.
Specifically, a support shaft 175 is fixed to the front and rear guide rollers 173 on the front and rear plate portion 177a, and support shafts 176 and 176 are fixed to the left and right plate portion 177b in the vertical direction.

As described above, the transplant aperture 151 moves up and down along an elliptical orbit that does not deviate in the left-right direction.
Here, the front / rear guide roller 173 is guided by the front / rear guide rail 253, thereby restricting the forward / backward movement of the transplant aperture 151.
The forward / backward movement of the transplanter 151 moving up and down is restricted by the restriction of the forward / backward movement, the posture of the transplanter 151 is controlled, and the rushing posture into the rod 45 becomes an appropriate posture.
In addition, the left and right guide rollers 174 and 174 are guided by the left and right guide rails 254, thereby restricting the left and right movement of the transplant aperture 151.

It is a side view which shows the whole structure of the vegetable transplanter. It is a top view which shows the whole structure of the vegetable transplanter 101. FIG. It is a whole top view at the time of work of vegetable transplanter 101. It is a principal part side view at the time of the operation | work of the vegetable transplanter 101. FIG. It is a principal part top view of the vegetable transplanter 101. FIG. It is a rear side view of the seedling mounting stand of the vegetable transplanter 101. It is a handle top view of vegetable transplanter 106. It is a side view which shows the raising / lowering mechanism of the transplant hole opening device 151. FIG. It is a rear view which shows the raising / lowering mechanism of the transplant hole opening device 151. FIG. It is a top view which shows the guide mechanism of the transplant hole opening device 151. FIG. It is a side view which shows the guide mechanism of the transplant hole opening device 151. FIG.

Explanation of symbols

16 Chain Case 17 Rear Wheel 81L Seedling Stand 81R Seedling Stand 101 Vegetable Transplanter 102 Worker 106 Handle Frame 104 Mission Case 109 Operation Unit 128 Front Claw Body 129 Rear Claw Body 151 Transplanter

Claims (4)

  A transplant aperture 151 having a pair of front nail body 128 and a rear nail body 129 is installed so that it can be opened and closed and moved up and down. The transplant aperture 151 holds the seedling 46 in a closed state, and in an open state. In the walk-type vegetable transplanter 101 that operates so as to drop seedlings, the seedling platforms 81L and 81R on which the seedling trays are placed can be rotated from the front position of the operator 102 to above the handle frame 106 in plan view of the body. A vegetable transplanting machine characterized by comprising.   The vegetable transplanter according to claim 1, wherein a plurality of seedling platforms (81L, 81R) on which a seedling tray is placed are arranged above the handle frame (106).   A plurality of seedling platforms 81L and 81R on which a seedling tray is placed are configured to be rotatable above a handle frame 106 extending backward from the upper part of the mission case 104 from the front position of the operator 102 in plan view of the machine body, A vegetable transplanting machine characterized in that a driving operation unit 109 operated by an operator 102 is provided behind the handle frame 106, and the plurality of seedling platforms 81L and 81R are arranged in front of the driving operation unit 109.   A transplant aperture 151 having a pair of front nail body 128 and a rear nail body 129 is installed so that it can be opened and closed and moved up and down. The transplant aperture 151 holds the seedling 46 in a closed state, and in an open state. In the walking-type vegetable transplanter 101 that operates to drop seedlings, the left and right seedling mounting platforms 81L and 81R on which the seedling trays are placed extend from the front of the operator 102 to the rear from the upper part of the mission case 104 in plan view. A driving operation unit 109 that is configured to be rotatable above the handle frame 106 and that is operated by the operator 102 is provided at the rear end of the handle frame 106, and the seedling platform 81 </ b> L is disposed in front of the driving operation unit 109. , 81R is superposed and disposed between the chain cases 16 and 16 for transmission that transmits power to the left and right rear wheels 17 and 17.

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