JPH1014331A - Transplanter seedling transporter - Google Patents

Abstract

(57) Abstract: A pair of endless conveying belts arranged vertically are brought into contact with each other, and a timing belt is provided inside each conveying belt, and meshes with receiving teeth of the timing belt. A transfer pulley for driving the transport belt in the circumferential direction, and by circulating the pair of transport belts in the circumferential direction, the transplanter transports the seedlings between the transport belts and transports the seedlings to the seedling-planted disk. This prevents the timing belt from slipping due to soil adhering to the drive pulley. SOLUTION: A drive pulley 19 is provided between a pair of support plates 27 which are opposed to each other at a predetermined interval in the rotation axis direction.
A bar 28 is arranged at a predetermined interval in the circumferential direction around the rotation axis and meshes with the receiving teeth 29 of the conveyor belt 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling transfer device for a transplanting machine for transplanting vegetable seedlings such as lettuce, Chinese cabbage, cabbage and broccoli or seedlings such as cedar and cypress into field ridges.

[0002]

2. Description of the Related Art Conventionally, as a transplanting machine, a running machine, a grooving device, a pair of rotating disc-shaped seedling discs, a seedling transfer device for transferring seedlings to the seedling discs, and a covering soil A member is provided, and seedlings are supplied to the seedling-planting disk by the seedling transfer device. The supplied seedlings are sandwiched between the peripheral portions of the two disks, and are transferred to the ground surface according to the rotation of the disks, and are then grooved. There is one in which soil is crushed and crushed by a soil covering member after forcibly planting the plant in the created planting groove.

[0003] As a seedling transfer device of this type of transplanter, the outer surfaces of a pair of endless transfer belts arranged vertically are brought into contact with each other, and a timing belt is provided inside each transfer belt. A gear-shaped drive pulley that meshes with the receiving teeth and drives the conveyor belt in the circumferential direction. By circulating the pair of conveyor belts in the circumferential direction, the seedlings are pinched between the conveyor belts and planted. There is a known one that is transported to an attached disk.

[0004]

In the above method, when the seedlings are inserted between the conveyor belts, the soil attached to the seedlings falls and enters the inside of the conveyor belt. There is a problem that the groove between the teeth of the driving pulley is clogged, and the timing belt and the driving pulley are not properly engaged with each other, so that the timing belt slips.

When the timing belt slips,
Poor seedling feeding and poor planting occur. In view of the above problems, an object of the present invention is to prevent the soil from adhering to the driving pulley.

[0006]

According to the first aspect of the present invention, there is provided a method for manufacturing a vehicle, comprising: a pair of endless belts provided at predetermined intervals in a circumferential direction; And a driving pulley 1 that meshes with the receiving teeth 29 to drive the conveyor belt 15 in the circumferential direction.
9 comprising a seedling transfer device for a transplanter, wherein the seedlings are held by the pair of transfer belts 15 and transferred.
The drive pulley 19 is arranged at a predetermined interval in a circumferential direction around the axis of rotation between a pair of support plates 27 arranged opposite to each other at a predetermined interval in the direction of the axis of rotation. Bar 28 meshing with receiving teeth 29 of conveyor belt 15
The technical means according to claim 2, wherein a pair of endless conveying belts 1 are provided.
5 are provided with receiving teeth 29 at regular intervals in the circumferential direction, and a driving pulley 19 that meshes with the receiving teeth 29 and drives the transport belt 15 in the circumferential direction. In the seedling transfer device of a transplanter configured to pinch and transfer, the transfer belt 15 is disposed between a pair of support plate portions 16a of a support frame 16 supporting the transfer belt 15, and the edge of the support plate portion 16a is It is characterized in that it is formed so as to conform to the shape of the transport belt 15, and the edge of the support plate portion 16 a is bent in a direction approaching the transport belt 15.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 7, reference numeral 1 denotes a riding-type transplanting machine including a traveling body 3 having a seat 2 and a transplanting device 4, and is configured to be able to automatically plant seedlings in a ridge while traveling across the ridge. I have.

[0008] The traveling body 3 has an engine 6, an engine 6,
The seat 2 is provided at an intermediate portion in the front-rear direction, and the vehicle body frame 5 is mainly supported by front and rear wheels 8 and 9 arranged on both left and right sides so as to be able to run. Reference numeral 9 denotes a driving wheel, and a front wheel 8 is a steering wheel. At the rear of the vehicle body frame 5, there is provided a steering handle 10 which is gripped at the time of a turning operation on a headland, a loading / unloading operation on a truck, and the like.

The implanting device 4 comprises a double-disc type groove cutter 11.
And a planting body 12 composed of a pair of rotating right and left seedling planting discs, a belt-type seedling conveying device 13 for conveying seedlings to the planting body 12, and rolling on both left and right sides of the seedling planting portion. It is mainly composed of a pair of left and right earth covering rings 14. The groove cutter 11 is attached to the front part of the body frame 5 so as to be adjustable in height. The planting body 12 is attached behind the groove cutter 11 and is driven to rotate by the power of the engine 6. The earth covering ring 14 is arranged between the cutting device 11 and the plant body 12 in the up-down direction, and the covering soil ring 14 is arranged on both left and right sides of the plant body 12 so as to shift outward in the left-right direction as going upward. It is rotatably mounted.

[0010] The seedlings supplied from the seedling transfer device 13 to the planted body 12 are sandwiched between the peripheral portions of the two disks.
After reaching the ground surface by the forward rotation of the disk and being forcibly planted in the planting grooves formed by the groove cutter 11, the soil is crushed simultaneously from the left and right sides by the covering ring 14 to complete the transplantation. The seedling transport device 13 has a pair of right and left transport belts 15 as shown in FIGS.
These transport belts 15 are configured such that an endless timing belt 15B is fixed to the center in the width direction on the inner surface side of a flat belt 15A formed in an endless shape by an elastic body such as sponge, sponge rubber, or rubber.

Each of the left and right conveyor belts 15 is a pair of upper and lower guide pulleys 1 attached to left and right support frames 16.
7 are stretched. Each support frame 16 is formed of a plate material, and the left and right inner sides in the left-right direction of the vertically long support plate portions 16a arranged to face each other at an interval in the front-rear direction are connected to each other by a connection plate portion 16b to be viewed in plan. It is formed in an open U-shape outward in the left-right direction.

The guide pulley 17 has front and rear support plate portions 16a.
The transport belt 15 is supported between the guide pulleys 17 so as to be rotatable about the front-rear axis via a support shaft 18 above and below the support belt 18 so as to pass outside the connecting plate portion 16b. A drive pulley 19 that is located inside the conveyor belt 15 and meshes with the timing belt 15B is disposed on the left and right outer side of the middle part in the vertical direction between the front and rear support plate portions 16a. 5 is externally fitted and fixed to a drive shaft 20 which is extended from the rear part and is rotationally driven by the engine 6.

Above and below the drive pulley 19, the front and rear support plates 16a are rotatably supported around a front and rear axis via a support shaft 21 via a support shaft 21. The timing belt 15B contacts the outer surface of the timing belt 15B. A guide pulley 22 is provided to assist the engagement with the drive pulley 19. The left and right support frames 16 are attached to a mounting plate 25 fixed to the front part of the vehicle body frame 5 by support members 23 and bolts 24 so that the position of the left and right transfer belts 15 can be adjusted. Are arranged facing each other or at a slight interval.

Therefore, the left and right drive pulleys 19 are
Is rotated in the directions indicated by arrows B and C, respectively, so that the conveyor belt 15 moves downward on the contact side (or the opposite side), and stalks of the seedlings are moved from above to the right and left conveyor belts 15.
By being inserted in between, the seedlings are pinched by the transport belt 15 and transported downward, and are inherited by the plant 12. When inserting seedlings between the conveyor belts 15,
The stem is inserted between the conveyor belts 15 such that the roots are on the front side and the leaves are on the rear side.

As shown in FIGS. 1 and 2, the drive pulley 19 has a cylindrical boss 2 which is externally fixed to a drive shaft 20.
6, a ring-shaped and disk-shaped support plate 27 is fixed on both sides in the axial direction, and is equidistant in the circumferential direction around the rotation axis on the outer peripheral side between the pair of support plates 27 arranged opposite to each other. And the bar 28 is fixed. These bars 28 are arranged in the rotation axis direction of the drive pulley 19 and
5B is fitted into the groove between the receiving teeth 29, and the transport belt 15 is circulated and rotated by rotation about the drive shaft 20.

As is apparent from the drawing, since the drive pulley 19 is a space around the rod 28 and is also a round bar, it is difficult for soil to adhere to the drive pulley 19, and the drive pulley 19 is different from a normal gear-shaped drive pulley. Soil adheres to tooth space and timing belt 1
There is no problem that poor engagement with 5B occurs. Further, the bar 28 is formed of a piano wire, and is configured to be elastically bent when an excessive load acts, and to be deflected from the load.

In the illustrated example, the rods 28 are provided at a pitch twice as large as the pitch of the receiving teeth 29 of the timing belt 15B, and are alternately fitted in grooves between the receiving teeth 29 of the timing belt 15B. However, the pitch of the rod 28 may be made to match the pitch of the teeth 29. As shown in FIG. 3, upper portions of the front and rear support plates 16a of the support frame 16 are formed so as to conform to the shape of the conveyor belt 15, and as shown in FIG. The upper side edge portion is provided with a bent portion 31 bent so as to approach (or slightly contact) the transport belt 15 by drawing in order to close a gap between the transport belt 15 and the support plate portion 16a.

In FIG. 3, the bent portion 31 is formed from near the upper end of the connecting plate portion 16b to near the point where the conveyor belt 15 is separated from the upper guide pulley 17. What is necessary is just to form in the range which soil does not fall on the drive pulley 19, ie, at least the upper part of the drive pulley 19. This prevents soil from entering the inner surface side of the transport belt 15 from between the upper portion of the transport belt 15 and the support plate portion 16a, so that when seedlings are inserted between the transport belts 15 and transported. At
The soil adhering to the seedlings falls, enters the inside of the conveyor belt 15 and is prevented from adhering to the drive pulley 19.

If the support plate 16a is constructed as described above,
The drive pulley 19 does not need to be configured as in the illustrated example, and a normal gear-shaped drive pulley may be used. In the present embodiment, the flat belt 15A and the timing belt 15
B and the flat belt 15A.
And the timing belt 15B may be integrally formed. Further, in the apparatus shown in FIG.
The support plate portion 16a of the support frame 16
As shown in FIGS. 8 and 9, the support plate 16a of the support frame 16 is extended, and the front and rear surface portions on the inner side in the left-right direction of the conveyor belt 15 are moved upward or downward. You may comprise so that it may cover over a direction.

[0020]

According to the first aspect of the present invention, receiving teeth 29 are provided inside the pair of endless conveying belts 15 at regular intervals in the circumferential direction, and mesh with the receiving teeth 29 so that the conveying belt 15 is engaged. Is provided with a driving pulley 19 for driving the
In the seedling transfer device of a transplanter in which a pair of transfer belts 15 pinch and transfer the seedlings, the drive pulley 19 is provided with a pair of support plates opposed to each other at a predetermined interval in the direction of the rotation axis. 27, the driving pulley 19 is arranged at a predetermined interval in the circumferential direction about the rotation axis, and is provided with a rod 28 that meshes with the receiving teeth 29 of the transport belt 15. , The soil is hardly adhered, and the soil that has entered the inside of the conveyor belt 15 adheres to the drive pulley 19 and causes slippage of the conveyor belt 15 due to poor meshing with the receiving teeth 29 of the conveyor belt 15. Is prevented.

According to the second aspect of the present invention, receiving teeth 29 are provided inside the pair of endless conveying belts 15 at regular intervals in the circumferential direction, and mesh with the receiving teeth 29 to form the conveying belt 15. In a transplanter seedling transfer device, comprising a drive pulley 19 for driving the transfer belt 15 in the circumferential direction and holding the seedlings between the pair of transfer belts 15 to transfer the transfer belt 15 to a support frame 16 supporting the transfer belt 15. And between the pair of support plate portions 16a, the edge of the support plate portion 16a is formed so as to conform to the shape of the transport belt 15, and the edge of the support plate portion 16a is moved in a direction approaching the transport belt 15. , It is difficult for soil to enter the inside of the conveyor belt 15, and soil enters the inside of the conveyor belt 15,
This prevents the soil from adhering to the drive pulley 19 and causing the transport belt 15 to slip due to poor meshing with the receiving teeth 29 of the transport belt 15.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a driving portion of a transport belt.

FIG. 2 is a perspective view of a driving pulley.

FIG. 3 is a front sectional view of an upper part of the seedling transport device.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a front view of the seedling transfer device.

FIG. 6 is a perspective view of the seedling transport device.

FIG. 7 is a side view of the transplanter.

FIG. 8 is a front view showing a modified example of the seedling transport device.

FIG. 9 is a front view showing a modified example of the seedling transport device.

[Explanation of symbols]

 15 Conveyor belt 19 Drive pulley 27 Support plate 28 Bar 29 Receiving teeth

Claims (2)

[Claims] 1. A pair of endless conveyor belts (1).
5) Receiving teeth (29) at regular intervals in the circumferential direction inside
And the conveyor belt (1) meshes with the receiving teeth (29).
5) A seedling transfer device for a transplanter, comprising: a drive pulley (19) for driving the seedling in the circumferential direction, wherein the pair of transfer belts (15) pinch and transfer the seedling. A pair of support plates (27) opposed to each other at a predetermined interval in the direction of the rotation axis, and are disposed at a predetermined interval in the circumferential direction around the rotation axis, and the transport belt ( 15) A seedling transfer device for a transplanter, comprising a bar (28) meshing with the receiving tooth (29) of (15). 2. An endless pair of conveying belts (1).
5) Receiving teeth (29) at regular intervals in the circumferential direction inside
And the conveyor belt (1) meshes with the receiving teeth (29).
5) A seedling transfer device for a transplanter, comprising: a driving pulley (19) for driving the transfer belt in the circumferential direction, wherein the pair of transfer belts (15) pinch and transfer the seedlings. And a support frame (16) for supporting the support belt (16) between the pair of support plates (16a), the edge of the support plate (16a) is formed so as to conform to the shape of the transport belt (15), The support plate (16a)
A seedling transfer device for a transplanter, wherein an edge of the seedling is bent in a direction approaching the transfer belt (15).