JPH0328725Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a riding rice transplanter in which a seedling planting device is removably connected to a lifting link device provided at the rear of a traveling vehicle body.

[Conventional technology]

Generally, a riding rice transplanter equipped with a seedling planting device at the rear of the running vehicle body has a rear load balance, so in order to correct this, a balance weight is equipped at the front of the vehicle body. When the vehicle is driven on the road with the seedling planting device removed, a balance weight is mounted on the rear of the vehicle to correct the weight balance of the vehicle.

[Problem that the invention attempts to solve]

However, if you forget that the balance weight is still attached to the rear and connect the seedling planting device to perform the seedling planting work, excessive weight will be placed on the rear of the vehicle, disrupting the front-to-back balance and causing poor running performance. This may lead to a decrease in workability.

This invention prevents the seedling planting device from being attached with the balance weight attached to the rear.
The purpose is to eliminate the decrease in running performance and workability that was caused by this.

[Means for solving problems]

The characteristic configuration of the present invention for achieving the above object is that the balance weight attached to the front part of the traveling vehicle body is configured to be freely replaceable near the rear end of the elevating link device, and the connection state of the seedling planting device is In this case, the adjustment lever provided in the seedling planting device is configured to be located at the balance weight mounting portion of the elevating link device, and its functions and effects are as follows.

[Effect]

In other words, even if you try to connect the seedling planting device to the traveling vehicle body with the balance weight attached near the rear end of the lifting link of the traveling vehicle body, the adjustment lever provided on the seedling planting device will not attach the balance weight of the lifting link device. It cannot be installed because it hits the part.

[Effect of idea]

Therefore, it is possible to prevent the mistake of attaching the seedling planting device with the balance weight attached to the rear, and it has become possible to eliminate problems in running performance and workability caused by this.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in Fig. 2, there is a traveling vehicle body A equipped with a pair of left and right front propulsion wheels 1 for steering and a pair of left and right rear propulsion wheels 2, and a pair of mounting brackets for attaching balance weights W to the left and right of the front end thereof. 3. Driving unit 4 at the front, spare seedling stand 2 on both sides of the driving unit 4
8. An inclined seedling platform 6 that is equipped with a boarding operation section 5 on the top and that moves horizontally and reciprocally with a constant stroke;
A seedling planting claw 7 sequentially takes out one seedling from the lower end of each of the pine seedlings placed side by side on the seedling table 6 and plants them on the mud surface, and five seedlings are placed side by side in the left and right direction. A seedling planting device 9 equipped with various devices such as a float 8 and a planting depth adjustment lever L is mounted on the rear of the vehicle body frame 3 and can be freely raised and lowered by a hydraulic cylinder 12 via a lifting link device 10, and is shaped like a trapezoid. It is connected to the vehicle body through a link mechanism 11 so as to be able to roll freely, thereby constructing an 8-row type riding rice transplanter.

The structure of the elevating link device 10 and the trapezoidal link mechanism 11 will be described in detail based on FIG. 3.

The elevating link device 10 includes lower links 13,1
4. It consists of an upper top link 15 and a frame 16 which is pivotally connected to three points at the rear end thereof.
Further, the frame body 16 has left and right lower links 13 and 14.
is welded to the upper part of the inverted U-shaped frame part 17 to which it is connected, and to the connecting frame part 18 to which the top link 15 is connected, and to the back parts of both frame parts 17 and 18. plate-shaped frame part 1
9.

The trapezoidal link mechanism 11 includes a plate body 21 which has a triangular shape when viewed from the front and has a locking hole 20 in the center and whose width becomes narrower toward the top. A pair of swing arms 22 are provided.

In order to connect the triangular plate body 21 to the frame body 16, the hook-like body 23 protruding from the connecting frame portion 18 to which the top link 15 is connected is locked into the locking hole 20, and the plate-like frame portion The protruding part of the pivot shaft of the swing arm 22 on the body side is inserted into the hole 24 drilled in the plate frame part 19, and is locked with the L-shaped lock member 25 pivotally connected to the plate-shaped frame part 19. On the other hand, to disconnect the connection, just do the opposite operation.

The transmission case 26 on the side of the seedling planting device 9 that is linked to the seedling platform 6 and the seedling planting claw 7 is provided with a joint 27 that can be freely operated to release the connection, and the above-mentioned lifting link device 10
The seedling planting device 9 can be attached to and detached from the traveling vehicle body A by connecting and disconnecting the joint 27 with the trapezoidal link mechanism 11 and the trapezoidal link mechanism 11 at the same time.

As shown in FIG. 1, the mounting bracket 3 is composed of a triangular plate-shaped bracket 3a projecting from the support 29 of the preliminary seedling stand 28 and a U-shaped guide plate 3b. The guide plate 3b has its center portion fixed to the tip of the bracket 3a.

The balance weight W has a handle hole 30 for easy carrying, and a locking protrusion 31 that can be supported by the guide plate 3b and the lower links 13 and 14.
is provided.

As shown in FIGS. 4 and 5, the balance weight W is attached to the rear end of the lower links 13 and 14 to attach the balance weight W to the elevating link device 10.
This is done by locking the locking hook 31 of. 32 is an L-shaped metal fitting fixed to the lower links 13, 14 in order to prevent the attached balance weight W from slipping along the lower links 13, 14.

The attachment portion of the balance weight W attached to one of the lower links 13 is configured to be in a position where it interferes with the planting depth adjustment lever l when the seedling planting device 9 is connected. There is.

[Brief explanation of the drawing]

The drawings show an embodiment of the riding rice transplanter according to the present invention, in which Fig. 1 is a front perspective view, Fig. 2 is a side view, and Fig. 3 is a side view.
The figure is a connection structure diagram of the seedling planting device, FIG. 4 is a side view when the balance weight is attached, and FIG. 5 is a partially cutaway plan view of the seedling planting device. 9...Seedling planting device, 10...Elevating link device,
A...Running vehicle body, W...Balance weight, l...
...adjustment lever.

Claims (1)

[Scope of utility model registration request] Lifting link device 10 provided at the rear of the traveling vehicle body A
This is a riding rice transplanter in which a seedling planting device 9 is removably connected to the vehicle, and a balance weight W attached to the front part of the traveling vehicle body A is configured to be freely replaceable near the rear end of the lifting link device 10. The riding rice transplanter is configured such that when the seedling planting device 9 is in a connected state, the adjustment lever l provided on the seedling planting device 9 is located at the balance weight attachment portion of the lifting link device 10.