JPH05192022A - Transplanter - Google Patents

Abstract

(57) [Summary] [Purpose] The objective is to obtain a compact transplanting device that has a smooth seedling division posture and a proper transplantation posture with smooth operation and good airtightness. [Configuration] Seedling transplant nail 3 attached to the transplant case 32
3 is fixed to the outer shaft 31a, which is transmitted by the gear transmission mechanism in the rotating case 26 rotatably mounted on the machine body so as to have a predetermined seedling planting posture, and is rotated in the outer shaft 31a. Inner shaft 3 that rotates integrally with the case 26
8 is provided, and the seedling extruding tool 3 is operated so that the seedling transplanting claws 33 are separated from the seedling tank 7 when the split-held seedlings are transplanted to the soil surface.
In the transplantation device in which the cam body 37 for moving the 4 is attached to the inner shaft 38, the attachment portion of the transplantation device case 32 to the outer shaft 31a is provided on the rotation case 26 side of the transplantation device case 32, and the rotation case 26 of the inner shaft 38 is provided. Device configured to be engaged with the inside of the rotating case 26

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter such as a rice transplanter, a vegetable transplanter, or a seedling transplanter for transplanting blocks of seedlings immediately after germination.

[0002]

2. Description of the Related Art As a conventional technique of this kind, Japanese Patent Application No.
There is a prior application as shown in U.S. Pat. No. 1,750,931 (Shokai Sho 60-66909), in which the outer shaft fitted to the inner shaft integral with the rotating case rotatably mounted on the machine body is subjected to gear transmission. There is disclosed a transplanting device in which a mechanism and a cam mechanism are configured to hold a predetermined posture, and a transplanter case having a seedling transplanting claw attached to the outer shaft is fixed.

[0003]

In the prior art of the above-mentioned prior application, the transplant case fixed to the outer shaft is held in a predetermined seedling planting posture by the gear transmission mechanism and the cam mechanism. However, the operation is not smooth, and the seedling dividing posture and the transplanting posture are disturbed, so that proper transplanting cannot be performed.
In addition, the operating configuration of the seedling extruding tool is not disclosed and cannot be put to practical use.

[0004]

In order to solve the conventional problems, the present invention rotatably attaches a seedling transplanting claw 33 attached to a transplanter case 32 to a predetermined seedling planting posture. The transplant tool case 32 is fixed to the outer shaft 31a that is transmitted by the gear transmission mechanism in the rotating case 26, and the inner shaft 38 that rotates integrally with the rotating case 26 is provided in the outer shaft 31a. 33. A transplanting device in which a cam body 37 for moving a seedling pushing tool 34, which operates so as to separate the seedling 33, which is divided and held from the seedling tank 7, is transplanted to the soil surface, is attached to the inner shaft 38 in the transplanting device case for the outer shaft 31a. Three
The second mounting portion is provided on the rotary case 26 side of the implant case 32, and the inner shaft 38 is engaged with the rotary case 26 inside the rotary case 26.

[0005]

According to the present invention, the implant case 3 is provided.
Rotating case 26 rotatably mounted on the machine so that the seedling transplanting claws 33 attached to 2 are in a predetermined seedling planting posture.
Since the transplant case 32 is fixed to the outer shaft 31a that is transmitted by the internal gear transmission mechanism, the transplant case 32 operates smoothly and the transplanting posture of the seedling is improved as compared with the conventional example. Further, the attachment part of the graft case 32 to the outer shaft 31a is provided on the rotary case 26 side of the graft case 32, and the inner shaft 38 is engaged with the rotary case 26 inside the rotary case 26. Therefore, the whole transplantation device can be made into a compact structure with good airtightness, and a high-performance seedling transplanter can be obtained.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings, in which 1 is a transplant transmission case, which is vertically moved to the side of a towing vehicle body (not shown) via an elevating link mechanism 2 and a rolling shaft 3. It is rotatably mounted and accommodates a transmission member such as a left-right reciprocating mechanism composed of a lead cam and a lead metal and a clutch mechanism.

Reference numeral 4 denotes a vertical transmission case for mounting an implanting device which will be described later, and a drive shaft 5 which is transmitted to the rear end side by a chain.
Is provided, and the drive shaft 5 is supported so as to project outward in the left and right directions. 6 shows a sprocket. A seedling tank 7 is composed of left and right side frames 8 and a bottom plate 9, and a belt 10 for vertically feeding the seedlings is stretched on the bottom plate 9.

Reference numeral 11 denotes a metal fitting for supporting the belt 10 on the bottom plate of the seedling tank 7, and the winding rolls 12, 13 and tension rolls 14 are attached to the metal fitting 11. The metal fitting 11 of the seedling tank 7 is provided on the side of the transplantation transmission case 1 and the vertical transmission case 4, and the support rail 1 is provided.
5 and 16 are movably supported by slider members 17 and 18. Reference numeral 19 is a support frame to which the support rail 15 is attached.

Reference numeral 20 denotes a moving rod, which is a member attached to a reciprocating lateral moving mechanism in the transplant transmission case 1 and attached to a moving shaft 21 which projects outward from the case 1 and reciprocates.
This moving rod 20 is connected to the metal fitting 11 so that the seedling tank 7 can be reciprocated left and right. 22
Is a ratchet arm that operates a ratchet that moves the winding roll 12, and this arm 22 is when the rotor 23 and the seedling tank 7 that are rotated in the outer portion of the transplantation transmission case 1 move to the lateral end. And is provided so as to transmit and rotate the winding roll 12.

Reference numeral 24 denotes a seedling receiving frame, which is on the lower end side of the seedling tank 7 and is provided in an L-shape for receiving the lower end side and the back surface of the seedlings housed in the seedling tank 7. This includes
The seedling dividing ports 25, 25 ... Are punched. Reference numeral 26 denotes a rotating case, which is mounted at this angular shaft portion with the tip end side of the drive shaft 5 as an angular axis so as to rotate integrally with the drive shaft 5.

Reference numeral 27 denotes a metal, which is fastened to the vertical case 4 by a bolt, supports the drive shaft 5 via a bearing, and has a metal tip end side extending into the rotary case 26. 28 is a sun gear, which is the rotating case 26
It is housed inside and is fixed to the metal 27 with the key 29 so as not to rotate, and the axis A of the drive shaft 5 and the center of the sun gear 28 are arranged so that the pitch circle is eccentric to the drive shaft 5. It is provided in a state where it is misaligned.

A counter eccentric gear 30 meshes with the sun gear 28. 31 is an eccentric planetary gear integrally provided with a cylindrical outer shaft 31a,
The outer shaft 31a is meshed with the counter eccentric gear 30, and one end of the outer shaft 31a projects to the outside of the rotating case 26. Reference numeral 32 denotes a transplant case, which is composed of a case body 32a, a mounting metal 32b, and a cap 32c, and an inverted U-shaped seedling transplanting claw 33 is attached to the front end of the case body 32a.

Reference numeral 34 designates a seedling pushing tool which operates so as to rapidly separate the seedlings held by the seedling transplanting nails 33 at the time of seedling transplantation. The side is inside the case main body 32a and is attached to the interlocking member 36 which is supported by the pin 35 and is rotated inside the case main body 32a. A cam floor 36a that contacts a cam body described later is integrally provided at the base end of the interlocking member 36.

The reference numeral 37 designates a cam body, the outer peripheral surface of which is formed into a spiral portion, a perfect circle portion and a step portion.
8 is integrally provided with the inner shaft 38, and the tip of the inner shaft 38 is attached to the angular shaft 38a.
Is formed. In order to assemble the cam body 37 to the case body 32a, the bearing 39 is attached to the metal 32b, and the inner shaft 38 is inserted into the hole of the bearing 39 from the outside so that the root portion of the cam body is fitted to the bearing 39. It is recommended that the metal 32b be fixed to the case main body 32a with bolts 40, 40 after being received by.

Then, with the case body 32a, the metal 32b and the cam body 37 assembled in this manner, the inner shaft 38
From the outside into the hole of the outer shaft 31a. At this time,
On the inner wall surface of the rotating case 26, the tip end side angular shaft 38a of the inner shaft 38 is formed.
The inner shaft 38 is provided with a square hole 41 as an engaging portion into which the
Is configured not to rotate. Further, a metal 32b is inserted into the outer peripheral surface of the outer shaft 31a, and the outer shaft 31a and the metal 32b are attached by a cotter pin 42 so as to prevent them from coming off and rotating.

Reference numeral 43 denotes a spring, which is provided inside the cap 32c for covering the upper part of the case body 32a and is provided so as to lower the rod 34a of the seedling pushing tool 34. Reference numeral 44 indicates a leveling float. Next, the operation of the above example will be described. The seedling is stored in the seedling tank 7 and the transplanter side is leveled with the towing vehicle.
Pulls while contacting the surface soil surface of the paddy field, and transmits power to each operating part in the transplant transmission case 1.

Then, the seedling tank 7 is reciprocated right and left,
The lower end side of the seedling in the seedling tank 7 is received by the seedling receiving frame 24 and slides. Then, the seedlings of the lower part are successively fed to the seedling dividing port 25. On the other hand, when the rotating case 26 is rotated by the drive shaft 5, the counter eccentric gear 30 and the eccentric planetary gear 31 in the rotating case are rotated by the sun gear 2.
The planetary gear 31 is rotated while rotating around 8
The transplantation case 32 is rotated by the outer shaft 31a which is integral with. Further, since the cam body 37 is integrated with the rotary case 26 via the inner shaft 38, the transplant case 32
A deviation occurs for the operation of. Therefore, the interlocking member 36
The cam floor 36a of the above comes into contact with the cam body 37 and rotates around this, and the seedling pushing tool 34 is pulled up against the spring 43 and stopped, and then the cam floor 36a.
Is rapidly lowered by the spring 43 when it reaches the stepped portion of the cam body.

That is, the lower end of the seedling transplanting nail 33 is actuated by drawing a transplanting locus C, but when the seedling transplanting nail 33 intervenes in the seedling tank 7 from above, the seedling pushing tool 34 stops above and seedling transplanting is performed. This state is maintained until the claw 33 plunges into the surface soil surface of the paddy field, and when the nail 33 plunges into the surface soil surface, the seedling pushing tool 3 is pressed by the spring 43.
4 rapidly moves down, releasing the seedlings it was holding.
After that, when the seedling transplanting nail 33 starts to move upward, the seedling pushing tool 34 is pulled up again by the cam body 37 and the interlocking member, and the seedling tank 7
When you rush into, it will be in a stopped state.

In this way, the seedlings fed to the seedling dividing port 25 by the two seedling transplanting devices are sequentially divided and carried to the soil surface for transplantation. Therefore, in this implanting device, when the implant case 32 is substantially attached to the rotating case 26, the outer shaft 31a is firmly supported by the rotating case 26 in a freely rotatable state, and the inner shaft is attached to the central portion of the outer shaft 31a. 38 is inserted and the square hole 41 on the inner wall surface of the rotating case 26 is inserted.
Since it is configured to hold the transplant tool case 32 in a predetermined posture by the gear transmission mechanism, it is compact as a whole and the transplant tool case 32 is properly operated without rattling. Will be transplanted in a proper posture without being disturbed. In addition, it is extremely easy to assemble and remove the implant case 32 to the rotating case 26.

[Brief description of drawings]

FIG. 1 is a plan sectional view of a main part.

FIG. 2 is a side view of a main part, which is a partial cross section.

FIG. 3 is a side view of a main part.

FIG. 4 is a plan view of a main part.

[Explanation of symbols]

7 seedling tank 26 rotating case 31a outer shaft 32 transplanter case 33 seedling transplanting claw 34 seedling pushing tool 37 cam body 38 inner shaft 41 mounting part (square hole)

Claims (1)

[Claims] 1. An outer shaft 31a which is transmitted by a gear transmission mechanism in a rotating case 26 rotatably mounted on a machine body so that a seedling transplanting claw 33 attached to a transplanter case 32 has a predetermined seedling planting posture. Secure the transplant case 32 to the
An inner shaft 38 that rotates integrally with the rotating case 26 is provided in the outer shaft 31a, and the seedling extruding tool 34 is operated so that the seedling transplanting claw 33 separates the seedlings from the seedling tank 7 when they are transplanted to the soil surface. In the transplantation device in which the cam body 37 for moving the inner shaft 38 is attached to the inner shaft 38, the attachment portion of the transplantation device case 32 to the outer shaft 31a is provided on the rotation case 26 side of the implantation device case 32, and the rotation shaft 26 of the inner shaft 38 is attached to the rotation case 26. An implanting device, characterized in that the engagement is performed inside the rotating case 26.