JPH09107736A - Transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transplanter excellent in operability, comprising a handle operating part supported slidably in the width direction of a machine body, capable of planting pot seedlings in many lines on a wide ridge and preventing a handle from becoming far off from an operator walking on a ridge furrow. SOLUTION: A machine body 6 having an engine and a transplanting part is supported slidably in the width direction of the machine body on a frame 3 held by a pair of front and rear wheels and a handle operating part 9 is supported slidably in the width direction of the machine body 6. A connecting part for coupling an operation lever 95 to be held on the handle operating part 9 with an operation linking part 96 to be supported on the machine body 6 is preferably installed changeably in position according to the sliding position of the handle operating part 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter used for transplanting, for example, vegetable seedlings onto ridges.

[0002]

2. Description of the Related Art Conventionally, this type of transplanter is disclosed in, for example, Japanese Patent Laid-Open No.
As disclosed in Japanese Patent No. 173005, a pair of left and right front wheels and rear wheels are respectively supported on both sides in the front-rear direction of a machine body equipped with an engine and the like, and a plurality of seedling accommodating parts are provided on the rear side of the machine body. A seedling transporting section for transporting a seedling tray having a seedling, a seedling taking-out nail for picking up potted seedlings from a seedling-holding section of the seedling tray transported by the transporting section, and a potted seedling taken out by the seedling-mounting claws for receiving ridges. There is a transplant part consisting of an openable and closable transplant nail to be planted on the top.

The transplanted pawl is arranged at an intermediate portion in the width direction of the machine body, and the transplanted pawl cannot move in the width direction of the machine body, but can only reciprocate along a predetermined locus in the vertical direction. In other words, that is, the seedling take-out claws are in a closed state to receive pot seedlings taken out from the seedling-holding section of the tray in a closed state, and after receiving the seedlings, descend from the seedling-receiving position and plunge into the ridge. At the time of the plunge, it moves within a range of a seedling planting position where the pot seedlings, which are opened when housed in the transplanted nails, are planted in the ridges.

When the pot seedlings are planted on the ridges, the front and rear wheels are run along the side walls of the ridges or the grooves formed between the ridges while the transplanted nails are cut in the widthwise intermediate portion of the machine body. In the range between the seedling receiving position and the seedling planting position, when the transplanted nail is closed and is waiting to rise to the seedling receiving position, it is transported by the transport section by the seedling extracting nail. The pot seedlings are taken out from the seedling accommodating section of the seedling tray and released into the transplanted nails, and then the transplanted nails are lowered to the seedling planting position and thrust into the ridges. The pot seedlings inside are opened and planted in the ridges.

[0005]

However, depending on the type of vegetables, pot seedlings may be densely planted in a large number of rows on a relatively wide strip of ridge. Then, it is a single row planting, the left and right wheels are located in the left and right ridges, the aircraft is faced on the ridge so as to straddle one row of ridges, and the transplanting claw is positioned at the widthwise intermediate part of the aircraft. Since it is designed to be planted, there is a problem in that it cannot be planted in multiple rows on one wide ridge.

That is, in the conventional transplanting machine, the transplanting claw is always located in the widthwise middle portion of the machine body, and at the time of planting work, the front wheel and the rear wheel are formed along the ridge groove or the side wall surface of the ridge formed between the ridges. However, it is also impossible to move the machine body in the ridge width direction due to the regulation by the ridge wall, and when the machine body is moved along the ridge, the seedlings are planted in the ridge direction by the transplanting claws. The trail is fixed. Therefore, even if the machine body is reciprocally moved with respect to the ridges, the seedling planting loci of the transplanted nails at the time of the reciprocating movement of the machine body are overlapped, and as a result, as described above, one row of ridges is formed. Even if an attempt was made to plant a plurality of rows of pot seedlings, it was not possible to plant potted seedlings on the ridge in an integral multiple number of the number of nails to be transplanted provided in the machine body.

The object of the present invention is to enable pot seedlings to be planted in a large number of rows on a relatively wide row of ridges, and at the time of working on such wide ridges, an operator who walks in the ridge groove. The point is to provide a transplanter that can avoid the difficulty of work that occurs when the handle moves away from the handle, and that can improve operability as a whole and can appropriately cope with multi-row planting.

[0008]

In order to achieve the above object, the invention according to claim 1 has an engine 4 and a transplant portion 5 on a frame 3 supported by a pair of front wheels 1 and rear wheels 2. The machine body 6 is slidably supported in the machine body width direction, and the handle operating portion 9 is supported by the machine body 6 slidably in the machine body width direction.

Further, in the invention described in claim 2, in the invention described in claim 1, even when the handle operating portion 9 is slid, the connection between the operating lever 95 and the interlocking portion 96 is ensured, and the operating lever is secured. In order to ensure the effectiveness of 95, the position of the connecting portion that connects the operating lever 95 supported by the handle operating portion 9 and the operation interlocking portion 96 supported by the machine body 6 is changed according to the slide position of the handle operating portion 9. The configuration is freely provided.

[0010]

In the invention described in claim 1, since the machine body 6 including the engine 4 and the transplant portion 5 is supported by the frame 3 supported by the front and rear wheels 1 and 2 so as to be slidable in the machine width direction, By moving the machine body 6 to one side in the width direction of the frame 3 and reciprocatingly moving the frame 3 along a row of furrow grooves, planting seedlings on the furrow by the transplanting section 5. As a result, seedlings of an integral multiple of the number of lines to be planted by the transplanting section 5 can be planted on a single ridge.

For example, in the case of a single-row planting structure in which one transplanting claw is provided in the transplanting section 5, the slide position of the machine body 6 with respect to the frame 3 is changed to move the machine body 6 to the frame 3
By moving to one side in the width direction and reciprocally moving the machine body 6 on the ridges, it is possible to plant two-row seedlings that are integer multiples of the transplanted nails without overlapping the row of planting seedlings. In addition, when a plurality of transplanted nails are provided, seedlings having an integer multiple number of each transplanted nail can be planted by the reciprocating movement of the machine body 6.

Further, as described above, after a plurality of rows of plants are planted by reciprocating running with the machine body 6 deviated, the slide position of the machine body 6 with respect to the frame 3 is changed to move the machine body 6 in the width direction of the frame 3. If it is located in the central part, it is possible to further plant seedlings in the center of the left and right seedling rows that have already been planted. By changing the relative position of the machine body 6 on one row of ridges, one row of ridges can be obtained. Multiple rows of seedlings can be planted.

When the machine body 6 is located closer to the center of the frame 3 in the width direction, and the handle operating portion 9 is slidably supported in the width direction with respect to the machine body 6 even if the distance from the ridge to the machine body 6 recedes. Therefore, the handle operating portion 9 can be brought closer to the furrow side where the worker is present, and it is possible for the worker who walks in the furrow to easily operate the handle, and the difficulty of the operation can be avoided.

In this way, a large number of rows of seedlings can be satisfactorily planted in one row of ridges while improving the operability as a whole, and the handle lever 9 is provided with an operating lever 93. Further, the machine body 6 is provided with interlocking portions 94 interlocking with the levers 93, respectively.
Even if the relative position between the operating lever 93 and the interlocking portion 94 changes with the sliding of the
The connecting portion for connecting 3, 94 is provided so that its position can be freely changed according to the slide position of the handle operating portion 9, so that the connection can be secured and the effectiveness of the operating lever 93 can be ensured. .

[0015]

1 to 3 show a transplanting machine according to the present invention, which has a pair of front wheels 1, 1 and rear wheels 2, 2 on both front, rear, left and right sides. It is composed of a frame 3 supported by wheels 1 and 2, and a machine body 6 equipped with an engine 4, a transplant portion 5 and the like.
It is configured to be supported slidably in the machine width direction.

As shown in FIG. 2, the frame 3 extends in the longitudinal direction of the machine body and has first and second rods 31 and 32 arranged on both left and right sides in the width direction with a space wider than the width of the machine body.
A third rod 33 in the longitudinal direction of the machine body, which is arranged near the second rod 32 at an intermediate portion between the rods 31 and 32, and a straight rod shape fixed to the front end side in the longitudinal direction of each rod 31, 32, 33. First slide rail 34 and the rods 31, 32,
It is fixed to the rear end side in the length direction of 33 and is configured in a frame shape from the first slide rail 34 and a second slide rail 35 extending in parallel.

Each of the rods 31, 32, and 33 has a shape that extends horizontally from the front end side in the longitudinal direction toward the rear side, and a front side plate 36 is fixed to the front end side thereof. The first slide rail 3 is provided between the side plates 36.
4 is pierced and supported, and a rear side plate 37 is fixed to the rear end side, and the second slide rail 35 is fixedly supported between the rear side plates 37. , 35 and the rods 31, 32, 33 are integrally coupled to form a frame.

Further, the first slide rail 34 of the front side plate 36 fixed to the front end side of the first rod 31.
A support portion 11 extending outward in the width direction of the machine body is projectingly provided on the lower side of the support portion of the support arm 12, and an upper end side boss portion 13 of a support arm 12 that supports the left front wheel 1 via the support portion 11.
I support. Also, the second and third rods 32, 3
A support portion 14 that extends outward in the vehicle width direction concentrically with the support portion 11 is provided below the support portion of the first slide rail 34 of the front side plate 36 that is fixed to the front end side of the support member 3.
The upper end side boss portion 16 of the support arm 15 that supports the right front wheel 1 is supported via the support portion 14. These left and right front wheels 1, 1 are, as shown in FIG.
The tread can be changed by reversing the receiving direction of the boss portions 13 and 16 with respect to the support portions 11 and 14. In addition, the end receiving shaft portion 14a of the support portion 14 that supports the right front wheel 1 has the base tubular portion 14b.
On the other hand, the pins and bolts are attached and detached to allow expansion and contraction, and the tread can be changed by changing the protruding length.

On the other hand, below the rear side plate 37 fixed to the rear end side of the first rod 31, the end connecting portion 23 of the transmission case 21 of the left rear wheel 2 is received and supported,
The left end of the output shaft 7 in which the flexible tube 25 is fitted over the left rear wheel 2 is interlocked. Also, the second
Below the rear side plate 37 fixed to the rear end side of the rod 32, the end connecting portion 24 of the transmission case 22 of the right rear wheel 2 is provided.
The right tread 2 has a tread adjusting portion 26 having inner and outer cylindrical portions 26a and 26b which are extendable and retractable.
The right end of the output shaft 7 is interlocked via the. An axle 20 is provided on each of the transmission cases 21 and 22 so as to project inward and outward so that the receiving direction of the rear wheels 2 and 2 can be reversed. Thus, in combination with the adjustment of the protrusion length of the right rear wheel 2 at the tread adjusting portion 26, the tread can be appropriately adjusted in the same manner as the front wheel side.
By changing the position of the frame 2 with respect to the frame 3 in the machine width direction, the tread can be freely changed according to the width of the furrow.

Further, on the front side of the engine 4 in the machine body 6, a substantially U-shaped first bracket 61 whose lower side is opened is attached via a connecting body 60 extending forward from the machine body 6, and the bracket 61 is attached. A plurality of rolling elements 62 slidably contacting the outer peripheral upper and lower portions of the first slide rail 34 are rotatably supported inside the left and right upper and lower portions, and a substantially box-shaped second body 62 is provided on the rear side of the machine body 6. Bracket 63
And a plurality of rolling elements 6 slidably attached to the upper and lower outer peripheral portions of the second slide rail 35 inside the bracket 63.
4 is rotatably supported, and the rolling bodies 62 and 64 provided on the first and second brackets 61 and 63 are rolled along the slide rails 34 and 35, respectively, and the body 6 is moved in the body width direction. Slide it to
By doing so, the entire body 6 is replaced by the frame 3
On the other hand, it is possible to smoothly and smoothly reciprocate in the machine width direction.

Between the frame 3 and the machine body 6,
A reciprocating device 8 for moving the machine body 6 in the machine width direction with respect to the frame 3 side is provided. The reciprocating device 8 includes a hydraulic cylinder 81 connected via a hydraulic pipe to a hydraulic pump 80 arranged near a mounting portion of the engine 4 in the machine body 6, and a mounting body 36a mounted to the frame 3 and the machine body. It is composed of a swing arm 83 which is interposed between a slot-shaped receiving body 87 attached to 6 and is swingable by the reciprocating movement of a piston rod 82 extending from the cylinder 81. The slot-shaped receiving body 87 is arranged at a substantially center of gravity of the machine body 6.

Then, pressure oil is supplied to and discharged from the hydraulic pump 80 into the cylinder 81, and the piston rod 8
By moving the 2 forward and backward, the swing arm 83 is swung, and the first rod 3 arranged on the left side of the frame 3 is moved.
1 and a position closer to the third rod 33 disposed in the widthwise intermediate portion of the frame 3, that is, a center position of the frame 3, the machine body 6 Can be slid in the machine width direction.

As described above, when the hydraulic cylinder 81 is used as the reciprocating device 8 for sliding the machine body 6 with respect to the frame 3, the transplanter is equipped with the hydraulic pump 80 as a hydraulic source. Since the hydraulic cylinder 81 is normally used, this hydraulic power source is used, and by doing so, the hydraulic cylinder 81 can be made lighter and less costly without increasing the weight of the airframe and complicating the configuration. Thus, the slide operation on the frame 3 of the machine body 6 can be performed.

Incidentally, in order to absorb the displacement of the engine 4 in the width direction due to the sliding of the machine body 6 and transmit the output shaft 7 to the left and right rear wheels 2, 2, an interlocking unit 700 having a drive gear 75 for inputting the power of the engine 4 And the left and right inner shafts 71, 72 forming the output shaft 7, the sleeve 7 having a spline portion.
It is interlocked via 3,74. Left and right side clutches 76, 77 are provided on the left and right of the drive gear 75 to independently turn on / off the power transmission to the left and right rear wheels.

In the space formed between the second rod 32 and the third rod 33 of the frame 3 on which the machine body 6 is not slid, the reciprocating device 8 is moved by the hydraulic pump 80.
Lifting cylinder 10 operated together with the hydraulic cylinder 81 of
0 is provided so that the height of the front and rear wheels 1, 2 can be adjusted up and down by the reciprocating movement of the piston rod 101 provided in the cylinder 100.

That is, on the rear side of the second slide rail 35 in the frame 3, a shaft rod 102 extending in parallel with the slide rail 35 is erected and supported, and one end of the shaft rod 102 in the lengthwise direction is used for the piston rod 101. A connecting rod 103 to which the tip side of the rod 101 is connected at a portion facing the
And the first and second rods 104 and 105 are provided at both ends of the shaft rod 102 respectively.
4, 105 are connected to front, rear, left and right swing pieces 106, 107, 108, 109 projecting on the swing support shafts of the front and rear wheels 1, 2 via connecting rods 110, 111, 112, 113, The front and rear wheels 1 and 2 are optional within a range between a lower use position shown by solid lines in FIG. 1 assuming work traveling and the like, and an upper non-use position shown by imaginary lines assuming storage and maintenance. It can be moved up and down at the height of.

The transplanting section 5 provided in the machine body 6 has an upper seedling receiving position and a lower seedling planting position where power is transmitted through a planting transmission case 51 provided on the rear side of the machine body 6. Bucket-like transplanting claws 53 made up of two pieces that can be opened and closed back and forth between them, a transport section 54 for transporting a seedling tray T having a plurality of pot seedling storage sections, and a transport section 54 for transporting the seedling trays T. The seedling take-out claw 55 is configured to take out the potted seedling from the seedling accommodating portion of the seedling tray T and release the taken-out seedling into the transplanting claw 53 that stands by at the seedling receiving position.
In addition, 58 is a multi-cutter which opens a transplant hole in the multi-film covered on the ridge, and 59 is a culture soil ring which is cultivated in pot seedlings planted in the ridge by the transplant nail 53.

Left and right handle frames 910, 920 are provided behind the machine body 6 so as to bypass the transport section 54. The left and right handle frames 910, 92 are provided.
The receiving portions 930 and 940 having a U-shaped cross section are respectively coupled to the rear end portions of 0, and the square pipes forming the front proximal end side bar 9a of the handle operating portion 9 are inserted into the respective receiving portions 930 and 940. The entire handle operating section 9 is slidably fixed to the left and right of the machine body 6 by tightening and loosening the bolts 950 and 960. Incidentally, 970,
Reference numeral 980 denotes a slide positioning stopper, and in this embodiment, the handle operating portion 9 is slidable in two positions, that is, the central position shown in FIG. 6 and the offset position shown in FIG.

The handle operating portion 9 is provided with an operating end side bar 9b at the rear thereof in a loop shape, and the left and right side clutch levers 91, 92 and the main clutch / brake lever 93 for turning on / off the take-out output of the engine 4. , A planting clutch lever 94 for turning on and off the power of the planting transmission case 51, and an elevating lever 95 for operating the elevating cylinder 100 to vertically elevate the front and rear wheels 1, 2. Incidentally, these levers 91 to 95 are highly likely to be used particularly frequently during traveling work.

The levers 91 to 95 are also displaced to the left and right of the machine body 6 in accordance with the slide of the handle operating portion 9. Of these, the operation interlocking portion 96 of the lifting lever 95 connected to the hydraulic circuit is of the wire type. However, the operation interlocking part 96 is supported by a handle frame 920 extending from the machine body 6. Other lever 92 ~
Reference numeral 94 is connected to each part via a wire-type interlocking part so that a change in the slide position of the handle operating part 9 can be absorbed and each lever operation can be reliably transmitted.

In this way, the operating lever which constitutes the lifting lever 95 and its interlocking portion 96 are connected between the two members which are relatively displaced with respect to each other, and therefore the handle is provided between the operating lever 95 and the interlocking portion 96. The position is freely changed according to the slide position of the operation unit 9.

That is, as clearly shown in FIGS. 8 and 9, the rotating shaft 95d, which is connected to the operating lever 95 by a plurality of arms 95a and 95b and is rotationally displaced according to the lever position, is moved in the sliding direction of the handle operating portion 9. A plurality of swing arms 95e and 95f are provided on the rotary shaft 95d so as to project between the swing arms 95e and 95f and the swing operation rod that constitutes the interlocking portion 96. , Removable pin 95g
I am trying to connect with. Thus, at the handle position shown in FIG. 6, the first swing arm 95e and the interlocking portion 96e.
And the second swing arm 95f and the interlocking portion 96 at the handle position shown in FIG. 7 or FIG. 9 so that the operation command can be transmitted to the hydraulic circuit side, respectively. ing.

It should be noted that, during one traveling operation, that is, during one stroke operation from end to end of the ridge, the main drive gearshift lever 97, the slide operation lever 98 of the machine body 6, and the inter-stock adjustment lever 99 which are relatively infrequently used. Is directly supported not on the slidable handle operating section 9 but on the machine body 6 side.

By the way, with the above structure, the four wheels 1, 1, 2, 2 of the front and rear wheels are provided so that the tread can be changed, and are supported so as to be vertically movable between the lower use position and the upper storage position. I am doing it. In this way, in order to improve the stopper function particularly during maintenance such as tread change and storage, front and rear stands F and R, which are grounded when the wheels 1, 1, 2 are located in the upper storage position, are provided. ing.

As shown in FIGS. 3 to 5, the front stand F has a substantially U-shaped stand main body F2 having a non-grounded portion F1 recessed in the center thereof and a left and right crossing above the non-grounded portion F1. The first horizontal bar portion F3 and the second horizontal bar portion F that runs in parallel with the horizontal bar portion F3 and extends in the vicinity of the left and right rotation center portions F4 and F5.
6, and is supported in the front part of the frame 3 so as to be reversible over two positions, a ground contact position on the lower side and a standing position on the upper side. F7 and F8 are biasing springs that are interposed between the left and right rotation center portions F4 and F5 and the second horizontal bar portion F6 to hold the lower ground contact position and the upper standing position, respectively. F9 and F10 are fixed levers for switching between the grounding position and the standing position and fixing and holding the switching position,
Receiving holes F13 and F14 for receiving pins F11 and F12 protruding from the left and right of the main body F2 are provided. F15, F1
Reference numeral 6 denotes an urging spring that constantly urges the entire lever toward the main body F2, and includes pins F11 and F12 and receiving holes F13 and F14.
The engagement state with is kept good.

The first lateral bar portion F3 is provided with a scale D1 indicating the slide position of the machine body 6 with respect to the frame 3, and the bracket 61 sliding with the side of the machine body 6 is composed of a vertical rod indicating the scale D1. Display D
2 are provided, and the scale D1 and the display D2 constitute a slide position detector D. In this way, when the front stand F is erected and the work is performed, the slide position of the machine body 6 can be confirmed from the side of the operator who operates the handle.

As shown in FIG. 6, the rear stand R is composed of a substantially U-shaped stand body R2, and is located below the left and right handle frames 910 and 920 of the machine body 6 via U-shaped brackets R4 and R5. The position is freely supported in two positions, a grounding position directed to the side and a retracted position directed to the diagonally upper side. R7 and R8 are biasing springs that are interposed between the left and right brackets R4 and R5 and the main body R2 to hold the lower ground contact position and the upper retracted position, respectively. In addition, fixed levers R9, R10, pin R
11, R12, biasing springs R15, R16 are the above-mentioned F
9, F10, F11, F12, F15 and F16 have the same configuration.

The front stand F also serves as a front bumper when standing up, and when the front part collides,
The frame 3 and the machine body 6 are prevented from being damaged or damaged, and in case of damage due to a collision, only the stand can be replaced.

Further, the rear stand R has a main traveling gear shift lever 9 when the front stand floats up due to a sudden start or the like, or when a machine or the like hits from behind, when the rear stand R is retracted upward.
7. It functions as a guard to protect the slide operation lever 98, the stock adjustment lever 99, etc. from damage.

[Brief description of the drawings]

FIG. 1 is a side view of a transplanter according to the present invention.

FIG. 2 is a plan view of the transplanter.

FIG. 3 is a front view of the transplanter.

FIG. 4 is a front view of the front stand when standing up.

FIG. 5 is a schematic view of a main part of a stand part.

FIG. 6 is a rear view of the transplanter.

FIG. 7 is a rear view when the steering wheel is offset.

FIG. 8 is a side view of a main portion of a handle operating portion.

FIG. 9 is a rear view of the main part of the handle operating unit.

[Explanation of symbols]

 1 …… Front wheel 2 …… Rear wheel 3 …… Frame 4 …… Engine 5 …… Transplanting section 6 …… Aircraft 9 …… Handle operating section 95… Operating lever 96… Operation interlocking section F …… Front side stand R …… Rear stand D …… Slide position detector

Claims (2)

[Claims] 1. A vehicle body (6) having an engine (4) and a transplant portion (5) is mounted in a vehicle body width direction on a frame (3) supported by a pair of front wheels (1) and rear wheels (2). A transplanter, which is slidably supported and also has a handle (9) supported slidably in the machine body (6) in the machine width direction. 2. An operating lever (95) supported by a handle operating part (9) and an operation interlocking part (9) supported by a machine body (6).
6. A connecting portion for connecting with 6) is provided so that its position can be freely changed according to the sliding position of the handle operating portion (9).
The described transplanter.