JPH0748009Y2 - Seedling pushing device in transplanter - Google Patents

Description

[Detailed description of the device]

[0001]

INVENTION The present invention relates, to open and close the nail while moving up and down seedlings to ensure release of the seedlings from the planted transplant nail, underground
Device for pushing into

[0002]

2. Description of the Related Art Conventionally, there is known a structure in which a transplanted nail is fully opened at the bottom dead center, and the transplanted nail is lifted up in the fully opened state until the seedling is received and the dead end is reached until the dead center is reached. .

[0003]

[Problems to be Solved by the Invention] However, when the seedlings are transplanted to the ridges provided with mulch, the above-mentioned conventional ones damage the mulch with the open transplanting nail when the transplanting nail escapes from the ground. There was a problem that it would end up.

In order to avoid such problems, if the construction is such that the transplanted nails are lifted in a fully closed state after planting seedlings,
Since the transplanted nail closes in the ground after planting the seedlings, mud may adhere between the nails of the transplanted nails, which may induce poor holding of the seedlings. Since the claws are fully closed, there is a drawback that the seedlings once planted are held again and brought back to the ground. Also, multi
There is also a drawback that the transplanted nail is easily damaged when it breaks through.
It was

In view of the above, the present invention solves the above-mentioned drawbacks and can reliably push seedlings into the ground without damaging the mulch , and the durability of the transplant nail is improved.
And to provide a device you.

[0006]

[Means for Solving the Problems] To achieve the above object, the present invention lowers the tip of the transplanting nail that is opened and closed by the vertical movement of the transplanting rod in the fully closed state where the seedling is held and fully opens at the bottom dead center. to release the seedlings, in transplantation machine which rises after planting, the implant
The nail is composed of a fixed transplant nail and a movable transplant nail.
Is attached to the upper part of the fixed graft nail, and the fixed graft nail is movable.
Fixed and movable nails that are formed longer than the nails
Between the stems of the seedlings without roots, and
A seedling ejector at the tip of the seedling releasing rod is movably faced in front of the planting nail, and the seedling ejecting rod is penetrating a supporting member attached to the transplanting rod, and an operator is attached to the seedling ejecting rod. Pivotally attaches the actuator to the operating rod fixed to the machine body so as to be able to come into contact with and separate from the operating rod, and moves the seedling ejector up and down in synchronization with the transplanting claw in conjunction with the operating rod operated by the operating rod . Transplantation of the seedling released by the nail
Constituting the front end portion protruding forward from the nail as pushed into the ground.

[0007]

In the seedling pushing device of the present invention constructed as described above, the actuator to which the seedling discharger is connected moves up and down together with the transplanting nail. One end of the actuator contacts the actuation rod and is pushed up as the actuator descends. Along with this push-up, the seedling ejector connected to the other end moves down, pushing the tip of the seedling into the ground . Movable transplant nail
The fixed graft nail breaks through the mulch before it touches the mulch
Thus, the contact pressure between the movable graft nail and the mulch is reduced.

[0008]

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

FIG. 1 is an overall view of an implanter 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 move forward. When the worker sets the seedlings 5 without root groups such as sweet potato vines one by one in the seedling supplying section 4, the fixed transplanting nails 7 of the implanting rods 6 and the movable transplanting nails 8 facing the fixed transplanting nails 8 Seedling 5 to seedling supply section 4
Received from and planted in the ridge 3 in sequence.

The implanting rod 6 has a base portion 6a pivotally supported on the vehicle body of the transplanter, and a projecting piece 35 is projectingly provided on the base end side thereof.
Is connected at the fulcrum 10a, and the tip of the crank arm 25 fixed to the output shaft of the engine 24 is connected to the link 26 connected to the center of the implanting rod 6 and the implanting rod is attached to the end of the implanting rod 6. 22 is fixed downward, and the fixed transplant nail 7 is fixed to the lower end of the transplant rod 22.

The fixed transplant nail 7 is lower than the movable transplant nail 8.
It is formed longer in one direction. As shown in FIG. 2, the nail opening / closing mechanism of the movable transplantation nail 8 facing the fixed transplantation nail 7 has rods 28, 2
9, a bell crank 30 and an arm 27, and a connecting link 9 arranged along the implanting rod 6 and the connecting link 9
Movable cam 1 pivotally connected to the base of the rod 29 and the fulcrum 10b
0 and the transplant nail 8 connected to the tip of the arm 27. Then, the movable cam 10 moves the connecting link 9 so that the transplanted pawls 7 and 8 are fully closed in the descending stroke, fully opened at the bottom dead center, and then half-opened in the ascending stroke.

More specifically, this nail opening / closing mechanism will be described 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 the projecting piece 3 protruding from the tip of the implanting rod 6 is provided.
Both rods 28 and 29 are respectively connected to both ends of a bell crank 30 pivotally attached to 3. Also, the rod 29 has an implantable rod 6
A spring 32 is wound and stretched between a rod guide 31 and a bell crank 30 which are attached to a projecting piece 33 projecting at a distance from the projecting piece 33 projecting at a distance, and a rod 29 of the implanting rod 6 is stretched. Energize in the tip direction.

Further, the movable cam 10 connected to the rod 29
Has three pins 17, 18, 19 on its one side,
A fixed cam 36 that contacts and separates from the pin 17 and fixed cams 15 and 16 that contacts and separates from the pin 19 are oppositely fixed to the vehicle body. The fixed cam 36 faces above the fixed cam 15, and the fixed cam 16 is fixed cam. It projects to the front of 15.

The pin 19 is provided on the movable cam 1 as shown in FIG.
It is attached to the outer end of a shaft 37 which is inserted into a collar 40 attached to the tip of 0. The shaft 37 has a coil spring 38 stretched between it and a pin 19, and a bolt 39 is screwed to the inner end of the shaft 37. The shaft 37 moves the movable cam 1 by the elastic force of the coil spring 38.
Prevents you from getting out of zero.

As shown in FIG. 3, an inclined surface 16a 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, the output shaft of the engine 24 further includes a sprocket 41, a chain 42,
The bevel gear 44 is rotationally driven via the sprocket 43,
The bevel gear 44 meshes with a bevel gear 45 fixed to a shaft 46 axially mounted in the traveling direction of the vehicle body, 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 wound with a chain 50 for feeding seedlings, and the sprocket 47 at the rear of the seedling section 4 is provided. The sprockets are arranged in the same manner as 48 and 49, and the chains are wound on these as in the case of the chain 50. The front end and the rear end of a large number of seedling stands 51 are respectively screwed between these two chains, and the seedlings 5 are placed on the upper surface of each seedling stand 51.
Spring type seedling holders 52 for setting the seedlings are provided respectively. When the bevel gear 45 is rotated by this, the seedling feeding table 51
Rotates around the sprockets 47, 48, 49.

The seedling discharging rod 20 has a lower end bent and the discharging element 20.
It is a rod with a attached. 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 is provided with upper and lower frames 23a, 23 of a U-shaped support member 23 rotatably attached to the tip of the implanting rod 6.
b penetrating up and down through the hole formed in b, and hanging down in parallel with the graft rod 22, the ejector 20a at the lower end is located in front of the graft nails 7 , 8 .
To face the vertically movable Rutotomoni, the upper portion of the seedling release rod 20 sliding tube 55 is attached, inserted into the elongated hole having a pin 56 projecting from the sliding Do杆55 to the proximal end of the actuator 21 To do.
A long hole 57 is formed in the horizontal frame 23e of the U-shaped support member 23. The 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. Lower frame 2 of U-shaped support member 23
The shaft support frame 23c projecting obliquely above 3b and the stud 6 are connected by a spring 59, and the rotatably mounted U-shaped support member 23 is provided so as to return to the initial position even when rotated. Energize. 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 are moved to the seedlings 5. 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.

A pin 2 is attached to a shaft support frame 23c, which is provided so that the central portion of the operator 21 projects obliquely above the lower frame 23b of the support member 23.
The pin 21 pivotally attached at 3d and attached to the tip of the actuator 21.
The a is arranged so as to be able to contact the tip of the operating rod 53 having the base end attached to the vehicle body. The operating rod 53 has an L-shaped abutment metal 6 at the tip.
Screw 0. 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 construction, 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 planting 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 is brought into sliding contact with the cam surface of the fixed cam 36 (FIG. 6), and the movable cam 10 as a whole 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, the movable graft claw 8 connected to the tip of the connecting link 9 is fully opened. Here, the stem portion of the seedling 5 is moved to the seedling feeding position at the lower part by the seedling feeding portion 4 and applied to the fixed transplant nail 7.

As the implantation rod 6 descends from the top dead center, the movable cam 10 is fixed by the tension of the coil spring 32.
Since it rotates in the counterclockwise direction along the sliding contact surface (Fig. 7), the connecting link 9 moves in the distal direction and the movable graft claw 8 closes.
The stem portion of the seedling 5 is held between the fixed transplant nail 7 and the nail. Seedlings in general
Has roots, so it is divided into leaves, stems, and roots.
Since the seedlings have no roots, they are called leaves, stems, and tips.

[0023] In accordance with Uekomi杆6 is further lowered, the previous end of the fixed transplant claw 7 in the ground surface enters into the ground. At this stage, the pin 19 of the movable cam 10 comes into contact with the inclined surface 16a provided on the inner surface of the fixed cam 16 on the movable cam 10 side as the implanting rod 6 descends, and is pushed into the movable cam 10 side. After that, the fixed cam 16 moves while tracing the inner surface thereof.

At the bottom dead center of the implanting rod 2, the pin 18 slides on 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 this time, the actuator 21 attached to the tip of the implanting rod 6 along with the lower part of the implanting rod 6 has the operating rod 5 protruding from the vehicle body.
3, the operating rod 53 rotates counterclockwise around the pin 23d, and the seedling releasing rod 20 is moved downward against the tension of the coil spring 54 via the pin 56 at the other end. Thereby, the emitter 20a at the lower end of the seedling discharge rod 20
Can move downward in front of the transplanted nails 7 and 8 , and in synchronization with the release of the seedling 5 by fully opening the movable transplanted nail 8, the tip portion of the seedling 5 can be pushed downward from above and pushed into the ground. On the other hand, the pin 19 comes off the side surface of the fixed cam 16, restores its original 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 moves up while rolling on the cam surface 16a of the fixed cam 16 (FIG. 10), so that the movable cam 10 projects forward.
After slightly rotating counterclockwise according to this cam surface 16a of 6, the pin 19 does not rotate and rises until it comes off the cam surface 16a of the fixed cam 16 protruding forward. Therefore, the movable transplant nail 8 is lifted up while being half opened. With this upward movement of the implanting rod 6, the contact of the operating element 21 in contact with the operating rod 53 is released, so that the operating element 21 is rotated clockwise about the pin 23d by the tension of the coil spring 54. while, seedling release rod 20 rises, the lower end of the seedling Hoshutsuko 20a is moved upward in front of the implanted nail 7,8, return to those first position. After the stud 6 is further raised and the ridged surface with the mulch is removed, the pin 19 is eventually released upward from the upper end of the cam surface 16a of the fixed cam 16, so that the movable cam 10 is reversed by the tension of the coil spring 32. It rotates clockwise and the movable graft 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]

As described above, according to the present invention, the seedling ejector faces the front of the transplanted nail and can move up and down in synchronization with the opening and closing of the transplanted nail. Therefore, the seedling ejector pushes out the seedlings at the same time when the seedlings are planted in the ridges, and the seedlings can be surely pushed into the ridges to plant the seedlings. Allows fixed transplant nails
Since it is formed longer than the moving graft nail, the movable graft nail is
Fixed graft claw breaks through multi before contacting ruchi
The contact pressure between the transplanted nail and the mulch is reduced, making it especially easy to damage
The resistance of the movable transplant nail is reduced by reducing damage to the shaft attachment part of the movable transplant nail.
It has the effect of dramatically improving endurance.

[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 a 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 operation explanatory view 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 transplant nail.

[Explanation of symbols]

5 seedling 7 fixed transplant nail 8 movable transplant nail 20a seedling ejector 21 actuator 22 transplant rod 23 support member 53 actuation rod

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideo Kainuma 1-40-40 Nisshin-cho, Omiya-shi, Saitama Biological system within the Industrial Technology Research Promotion Organization (56) Reference JP-A-59-143518 (JP, A) JP-A-63-230008 (JP, A) JP-A-1-160417 (JP, A)

Claims (1)

[Scope of utility model registration request] The method according to claim 1 Transplantation nail tip for opening and closing the upper and lower operating transplantation rod descends in a fully closed state of clamping the seedlings, release the seedlings was fully open at the bottom dead center, the transplanter to rise after planting, the The transplanted nail consists of fixed and movable
The dynamic graft nail is pivotally attached to the upper part of the fixed graft nail, and
Is longer than the movable implant nail and can be used as a fixed implant nail.
The stem of a seedling having no root group is sandwiched between moving transplant nails, and the seedling ejector at the tip of the seedling ejecting rod is allowed to move up and down in front of the transplant nail , and the seedling ejecting rod is Along with penetrating and hanging down the support member attached to the transplantation rod, the actuating rod is pivotally attached to the seedling releasing rod, and the actuating rod fixed to the machine body is arranged so that it can come into contact with and separate from the actuating rod. The seedling ejector moves up and down in synchronism with the transplanted nail in synchronization with the actuator , and the transplanted nail releases it.
Push the tip of the seedling that protruded forward from the transplanted nail into the ground
A seedling pushing device characterized by stripping .