JPH059214U - Seedling release device for transplanted nails of transplanter - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a device capable of reliably releasing seedlings from a transplant nail into the ground without damaging the mulch. [Constitution] In a transplant nail of a transplanter, the transplant nails 7, 8
In the meantime, the seedling releasing element 20a at the tip of the seedling releasing rod 20 is vertically movably faced, and the seedling releasing rod 20 is inserted into and suspended from the support member attached to the transplanting rod 22 and is operated by the seedling releasing rod 20. The child 21 is pivotally mounted, and the operator 21 is arranged so as to be able to come in contact with and separate from the operating rod 53 fixed to the machine body, and the seedling ejector 20a is transplanted in cooperation with the operating rod 21 operated by the operating rod 53. In synchronism with the vertical movement of 7 and 8, the seedling 5 is moved up and down between the transplanted nails 7 and 8.
Is configured to be extruded.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for surely releasing seedlings from a transplanted nail that opens and closes the nail while vertically moving to plant a seedling.

[0002]

[Prior Art]

 Conventionally, there is known a structure in which the transplanted nail is fully opened at the bottom dead center, the transplanted nail is raised in the fully opened state, and the seedling is received and fully closed until the bottom dead center is reached.

[0003]

[Problems to be solved by the device]

 However, the above-mentioned conventional one has a problem that when transplanting seedlings into a mulch-treated ridge, the mulch is damaged by the open transplanting nail when the transplanting nail escapes from the ground. It was

In order to avoid such a problem, when the transplanted nail is raised in a fully closed state after planting the seedling, the transplanted nail is closed in the ground after planting the seedling, so that the space between the nails of the transplanted nail is increased. Mud may adhere to the seedlings, causing improper holding of the seedlings.Since the transplanted claws are fully closed immediately after the seedlings are fully opened and released at bottom dead center, the seedlings once planted are held again and brought back to the ground. There was a drawback that it would end up.

Therefore, an object of the present invention is to solve the above-mentioned drawbacks and to provide a device capable of reliably releasing seedlings from a transplant nail into the ground without damaging the mulch.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention descends in a fully closed state where the tip of the transplanted nail that is opened / closed by the vertical movement of the transplanted rod is sandwiched with the seedling, fully opens at the bottom dead center, and releases the seedling. In the transplanting nail of the transplanting machine that rises, the seedling ejector at the tip of the seedling ejecting rod is faced between the transplanting nails so as to be able to move up and down, and the seedling ejecting rod is penetratingly hung down on the support member attached to the implanting rod. At the same time, an actuator is pivotally attached to the seedling releasing rod, and the actuator is disposed so as to be able to come in contact with and separate from the operating rod fixed to the machine body, and the seedling releasing element is interlocked with the actuator operating by the operating rod. Is synchronized with the up and down movement of the transplanted nail, and is vertically moved between the transplanted nails to push out the seedlings.

[0007]

[Action]

 In the seedling discharging device of the present invention configured as described above, the actuator to which the seedling discharging element is connected moves up and down together with the transplant nail. One end of the actuator comes into contact with the operating rod and is pushed up as the actuator descends. Along with this push-up, the seedling ejector connected to the other end descends, pushing the seedling into the ground and ejecting it.

[0008]

【Example】

 An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an overall view of a transplanter embodying the present invention. The left and right front wheels 1, 1 and drive wheels 2, 2 straddle a ridge 3, and the drive wheels 2, 2 advance. When the worker sets the seedlings 5 such as sweet potato vines in the seedling feeding section 4 one by one, the seedlings 5 are fed by the fixed transplanting nails 7 of the implanting rods 6 and the movable transplanting nails 8 facing them. Received from part 4 and planted in ridge 3 in sequence.

The base 6a of the implanting rod 6 is pivotally supported on the vehicle body of the transplanter, and the projecting piece 35 is provided on the base end side of the implanting rod 6. The movable cam 10 is pivotally attached to this by the fulcrum 10a. 6, the link 26 connected to the center of the engine 6 and the tip of the crank arm 25 fixed to the output shaft of the engine 24 are connected, and the graft rod 22 is fixed downward to the tip of the implant rod 6. A fixed transplant nail 7 is fixed to the lower end of 22.

As shown in FIG. 2, the claw opening / closing mechanism of the movable graft claw 8 that faces the graft claw 7 is composed of rods 28 and 29, a bell crank 30 and an arm 27, and is arranged along the implantation rod 6. It is composed of a connecting link 9, a movable cam 10 pivotally connected to the base of a rod 29 of the connecting link 9 at a fulcrum 10b, and a transplanting claw 8 connected to the tip of an arm 27. Then, the movable cam 10 is used to move the connecting link 9 so that the transplanted pawls 7 and 8 are fully closed in the downward stroke, fully opened at the bottom dead center, and then half-opened in the upward stroke.

To further explain this nail opening / closing mechanism in detail, the base of the fixed transplant nail 7 is fixed to the lower end of the transplant rod 22 suspended from the tip of the implant rod 6, and the movable transplant nail 8 is opened / closed. Then, the tip of the rod 28 is pivotally attached via the arm 27 fixed to the other end of the shaft. The rod 28 and the rod 29 are arranged in parallel with the implanting rod 22 and the implanting rod 6, respectively, and of the bell crank 30 pivotally attached to a projecting piece 33 projecting from the tip of the implanting rod 6. Both rods 28 and 29 are connected to both ends, respectively. Further, a spring 32 is wound around the rod 29 between the bell crank 30 and the rod guide 31 attached to the projecting piece 33 projecting at a distance from the projecting piece 33 projecting on the implanting rod 6. , The rod 29 is urged toward the tip of the implantation rod 6.

Further, the movable cam 10 connected to the rod 29 has three pins 17, 18 and 19 pivotally mounted on one side surface thereof, and a fixed cam 36 that contacts and separates from the pin 17 and a contact and separation from the pin 19 on the vehicle body. The fixed cams 15 and 16 are fixed to each other, the fixed cam 36 faces above the fixed cam 15, and the fixed cam 16 projects forward of the fixed cam 15.

As shown in FIG. 3, the pin 19 is attached to the outer end of a shaft 37 inserted through a collar 40 attached to the tip of the movable cam 10. The shaft 37 extends a coil spring 38 between the pin 19 and the pin 19. At the same time, a bolt 39 is screwed onto the inner end of the shaft 37 to prevent the shaft 37 from slipping out of the movable cam 10 by the elastic force of the coil spring 38.

As shown in FIG. 3, an inclined surface 16 a is provided on the upper end of the fixed cam 16 facing the movable cam 10 by notching upward from the inner side surface toward the outer side.

On the other hand, as shown in FIG. 4, a bevel gear 44 is rotatably driven on the output shaft of the engine 24 through a sprocket 41, a chain 42, and a sprocket 43, so that the bevel gear 44 advances in the vehicle body. It meshes with a bevel gear 45 fixed to a shaft 46 axially mounted in the direction, and a sprocket 47 is fixed to the other end of the shaft 46. A sprocket 48 is provided on the side of the sprocket 47, and a sprocket 49 is provided below the sprocket 47. The sprocket 47, 48, 49 is provided with a chain 50 for transporting a seedling stand, and a sprocket on the rear portion of the seedling section 4 is provided. Place sprockets like 47, 48 and 49, and wrap a chain around them as well as chain 50. Then, the front end and the rear end of a large number of seedling stands 51 are respectively screwed between these two chains, and a spring type seedling holder 52 for setting the seedlings 5 is set on the upper surface of each seedling stand 51. Provide each. As a result, when the bevel gear 45 rotates, the seedling feeding table 51 rotates around the sprockets 47, 48 and 49.

The seedling releasing rod 20 is a rod having a lower end bent and attached with an emitter 20a. As shown in FIG. 13, the tip of the emitter 20a has the same width as the opening distance of the movable graft nail 8.

The seedling releasing rod 20 penetrates vertically through the holes formed in the upper and lower frames 23a and 23b of the U-shaped support member 23 rotatably attached to the tip of the implanting rod 6, and is parallel to the implanting rod 22. And the ejector 20a at the lower end is vertically movably inserted between the transplanted claws 7 and 8, and a sliding tube 55 is attached to the upper part of the seedling releasing rod 20 and protrudes from the sliding rod 55. The pin 56 is inserted into a long hole provided at the base end of the actuator 21. A long hole 57 is formed in the lateral frame 23e of the U-shaped support member 23. A fixed shaft 58 fixed to the sliding rod 55 is inserted into the elongated hole 57, and the tip of the fixed shaft 58 is screwed to prevent the sliding rod 55 from rotating in the lateral direction. The shaft support frame 23c, which is provided obliquely above the lower frame 23b of the U-shaped support member 23, and the stud 6 are connected by a spring 59, and the U-shaped support member 23 rotatably attached is initially rotated. Energize to return to the position. According to this structure, the transplanted claws 7 and 8 move with the movement of the machine body, but the transplanted claws 7 and 8 attached to the U-shaped support member 23 are rotated by the U-shaped support member 23 so that the transplanted claws 7 and 8 can move. After planting, the planting claws 7 and 8 will stop at a fixed position until they are separated from the ridges 3, and the planting work will be smooth.

The central portion of the actuator 21 is pivotally attached by a pin 23d to a shaft support frame 23c provided obliquely above the lower frame 23b of the support member 23, and the pin 21a attached to the tip of the actuator 21 is attached to the vehicle body. It is arranged so that it can come into contact with the tip of the operating rod 53 having the base end attached thereto. An L-shaped contact fitting 60 is screwed to the tip of the operating rod 53. Further, a coil spring 54 is wound around the seedling releasing rod 20 between the sliding tube 55 and the lower frame 23b, and the tension of the coil spring 54 constantly urges the coil spring 54 upward (FIG. 11).

With this configuration, in order to transplant the seedlings 5 into the ridges 3, the output shaft of the engine 24 is rotated and power is transmitted to the implanting rods 6 via the crank arm 25 and the link 26. The slide rod 6 reciprocates in the vertical direction with its base portion 6a as a fulcrum.

As the implanting rod 6 rises, the pin 17 of the movable cam 10 slides on the cam surface of the fixed cam 36 (FIG. 6), and the entire movable cam 10 rotates clockwise around the fulcrum 10a as a fulcrum to rotate the coil spring 32. Since the connecting link 9 is pulled against the tension of, the movable graft claw 8 connected to the tip of the link 9 is fully opened. Here, the seedling feeding section 4 moves the seedling 5 to the lower seedling feeding position and applies it to the fixed transplant nail 7.

As the implantable rod 6 descends from the top dead center, the movable cam 10 rotates counterclockwise along the sliding contact surface of the fixed cam 36 by the tension of the coil spring 32 (FIG. 7). 9 moves in the distal direction, the movable transplant nail 8 is closed, and the seedling 5 is held between the fixed transplant nail 7.

As the implanting rod 6 further descends, the closed tip of the fixed implanting nail 7 on the ground surface enters the ground. At this stage, the pin 19 of the movable cam 10 contacts the inclined surface 16a provided on the inner surface on the movable cam 10 side at the upper end of the fixed cam 16 as the implanting rod 6 descends, and is pushed into the movable cam 10 side. After being trapped, it moves along the inner surface of the fixed cam 16 while tracing.

At the bottom dead center of the implantation rod 2, the pin 18 makes sliding contact with the cam surface 15a of the fixed cam 15 (FIG. 8), so that the movable cam 10 as a whole rotates in the clockwise direction. Then, the movable transplant nail 8 is fully opened and the seedling 5 is released. At that time, along with the lower part of the implanting rod 6, the operating element 21 attached to the tip of the implanting rod 6 abuts on the operating rod 53 protruding from the vehicle body, and the operating rod 53 causes the pin 23d. It rotates counterclockwise around the center of the arrow and moves the seedling releasing rod 20 downward against the tension of the coil spring 54 via the pin 56 at the other end. As a result, the ejector 20a at the lower end of the seedling releasing rod 20 moves downward between the transplanting nails 7 and 8 and pushes the seedling 5 downward from above in synchronization with the release of the seedling 5 by fully opening the movable transplanting nail 8. Can be reliably released. On the other hand, the pin 19 comes off the side surface of the fixed cam 16 and is restored to the initial length by the tension of the coil spring 38, and then comes into sliding contact with the cam surface 16a on the upper surface of the fixed cam 16 (FIG. 9).

When the implanting rod 6 starts to move up, the pin 19 ascends while rolling on the cam surface 16a of the fixed cam 16 (FIG. 10), so that the movable cam 10 moves toward the front side of the fixed cam 16. After slightly rotating counterclockwise according to the cam surface 16a, the pin 19 does not rotate and rises until the cam surface 16a of the fixed cam 16 protruding forward is removed upward. Therefore, the movable transplant nail 8 is lifted up while being half opened. With the upward movement of the implanting rod 6, the contact of the operating element 21 which is in contact with the operating rod 53 is released, so that the tension of the coil spring 54 causes the operating element 21 to rotate clockwise about the pin 23d. While moving, the seedling releasing rod 20 rises, and the seedling releasing rod 20a at the lower end moves up the transplanting nails 7 and 8 to remove the soil adhered between them and return to the initial position. After the stud 6 is further raised and the ridged surface with the mulch is removed, the pin 19 is eventually released from the upper end of the cam surface 16a of the fixed cam 16, so that the movable cam 10 has a tension of the coil spring 32. Then, it rotates counterclockwise, and the movable transfer claw 8 is closed via the connecting link 9 (FIG. 5). In this state, the pins 17, 18 and 19 are separated from each other without coming into contact with the cams 36, 15 and 16, and the tension of the coil spring 32 is concentrated on the movable transplanting pawl 8.

After that, the implantation rod 6 reaches the top dead center again. Hereinafter, these operations are repeated.

[0027]

[Effect of the device]

 In the present invention, the seedling ejector is placed between the transplanted nails as described above so that it can move up and down in synchronization with the opening and closing of the transplanted nails. Therefore, when the transplanted nails sandwich the seedlings and plant them in the ridges. At the same time, the seedling ejector pushes out the seedling, and surely discharges the seedling into the ridges so that the seedling can be planted. Further, even when the transplanted nails are moved up, the soil that adheres between the transplanted nails can be scraped off from the seedling ejector, and the next holding of the seedlings can be ensured.

[Brief description of drawings]

FIG. 1 is an overall side view of a transplanter on which a device according to an embodiment of the present invention is mounted.

FIG. 2 is a side view of an implanting device according to an embodiment of the present invention.

FIG. 3 is an enlarged perspective view of a main part of the transplantation device.

FIG. 4 is a perspective view of a seedling inserting device and a seedling feeding device according to an embodiment of the present invention.

FIG. 5 is an explanatory view of the action of the movable cam.

FIG. 6 is an explanatory view of the action of a movable cam.

FIG. 7 is an explanatory view of the action of the movable cam.

FIG. 8 is an explanatory view of the action of the movable cam.

FIG. 9 is an explanatory view of the action of the movable cam.

FIG. 10 is an explanatory view of the action of the movable cam.

FIG. 11 is an enlarged side view of an essential part of the present invention.

FIG. 12 is an enlarged side view of the tip of the transplanted nail.

FIG. 13 is an enlarged rear view of the tip of the transplanted nail.

[Explanation of symbols]

 5 Seedling 7,8 Grafting nail 20a Seedling ejector 21 Actuator 22 Grafting rod 23 Supporting member 53 Actuating rod

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideo Kainuma 1-40-2 Nisshin-cho, Omiya-shi, Saitama 2 Biological Systems

Claims (1)

[Claims for utility model registration] [Claim 1] The transplanting nail at the tip, which is opened and closed by the vertical movement of the transplanting rod, descends in a fully closed state in which the seedling is held, and fully opens at bottom dead center to release the seedling and plant it. In the transplanting nail of the transplanting machine that rises backward, the seedling ejector at the tip of the seedling ejecting rod is vertically movable between the transplanting nails, and the seedling ejecting rod is penetratingly hung down on the support member attached to the implanting rod. At the same time, an operator is pivotally attached to the seedling releasing rod, and the actuator is arranged so that it can be brought into contact with and separated from the operating rod fixed to the machine body, and the seedling releasing element is interlocked with the actuator operating by the operating rod. A seedling releasing device that pushes seedlings by vertically moving between the transplanted nails in synchronization with the vertical movement of the transplanted nails.