JPH0810004Y2 - Auxiliary lug structure for paddy work machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a structure of an auxiliary lug attached to a wheel of a paddy working machine.

[Prior Art] In a rice transplanter, which is an example of a paddy field working machine, if it gets into a deep headland or the like, the wheel may idle and may not move. Therefore, in such a case, a means for attaching a large auxiliary lug to the wheel and escaping has been proposed, and an example of this auxiliary lug is disclosed in Japanese Utility Model Publication No. 56-52081.

[Problems to be solved by the device]

In the structure of the known example, when the auxiliary lug is mounted on the wheel, it is fastened and fixed by an arc-shaped mounting bolt (member (15) in the above publication). Therefore, if the mounting bolts are not tightened sufficiently or if mud enters between the wheel and the mounting bolt or between the wheel and the auxiliary lug, a large reaction force from the mud when the wheel is rotationally driven (the above-mentioned If it hits the member (13-1) of the publication, the auxiliary lug may move.

When tightening the mounting bolts, if mud adheres to the tightening nut or the like, the mud may be caught and the nut may not be turned.

Further, in the known structure, since the lug plate for transmitting the driving force of the wheel to the mud of the paddy field is located on the inner peripheral surface side of the wheel, the driving force of the wheel cannot be sufficiently transmitted to the mud of the paddy field.

Therefore, an object of the present invention is to provide a structure in which, when the auxiliary lug is attached to the outer peripheral surface of the wheel where the driving force is easily transmitted, it can be attached to the outer peripheral surface of the wheel without any trouble.

[Means for solving the problem]

A feature of the present invention is that the auxiliary lug structure of the paddy working machine is configured as follows. That is, a saddle member that extends from the outer periphery to the traveling wheel is provided with a hole portion through which a lug projection protruding from the outer peripheral surface of the wheel is inserted, and a wide lug plate, and at the left and right side portions of the saddle member. A pair of circumferentially extending and connecting pins are arranged at the front and rear positions of the spokes of the wheel, and when the wheel is rotationally driven, the spoke can be attached to one of the pins so that it can be attached. The actions and effects are as follows.

[Action]

The traveling wheel (6) of the paddy working machine is usually provided with a relatively small lug projection (10) on its outer peripheral surface, as shown in FIG. 5, for example. Therefore, when the auxiliary lug (1) of the present invention is attached to the outer periphery of the wheel (6), the lug projection (10) is provided in the hole (3) of the saddle member (2) (see FIG. 4).
When it is made to enter, the saddle member (2) of the auxiliary lug (1) can be attached to the outer periphery of the wheel (6) with less rattling.

When fixing the auxiliary lug (1) to the wheel, the pin (1
Since 2) and (13) (straight line, U-shape, etc.) are used,
Even if mud adheres, the pins (12) and (13) can be attached and removed without any problem.

Further, as shown in FIG. 5, when the wheel (6) is rotationally driven in the clockwise direction of the drawing, the spokes (8) of the wheel (6) come into contact with one pin (12). Therefore, the rotational driving force of the wheel (6) is reliably transmitted to the auxiliary lug (1) by the abutting action of the spoke (8) and the pin (12).

[Effect of device]

As described above, when the auxiliary lug is attached to the outer periphery of the wheel, there is no particular problem, and even if the mud adheres, the attachment can be easily performed, and the workability can be improved.

The position of the pin for attaching the auxiliary lug is devised so that the spokes come into contact with the pin when the wheel is rotationally driven, so that the rotational driving force of the wheel is more reliable than the tightening structure like the known structure. It was transmitted to the mud of the paddy field through the auxiliary rug, making it easier to escape.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1, 2, 3, and 4 show an auxiliary lug (1) attached to a wheel of a paddy working machine such as a riding type or a walking type rice transplanter or a direct seeder. This auxiliary lug (1) is provided with a pair of saddle members (2) formed by bending a plate material in a U shape, and a hole (3) for inserting a lug projection (10) of a wheel (6) described later is provided at the center of the saddle member (2). The saddle member (2) is fixed in front of and behind the wide lug plate (4) provided with the U-shaped hole (15). And one pair for each of the saddle members (2), for a total of 4
A set of holes (5) is provided.

On the other hand, the rear wheel (6) of the riding type rice transplanter, which is an example of the paddy working machine, has a metal round pipe rim (7) made of a metal round pipe as shown in FIGS. 5 and 6. It has a structure of being fixed to the boss portion (9) by the spokes (8).
The rim (7) is integrally covered with a hard rubber lug protrusion (10) and a lug (11).

Next, the attachment of the auxiliary lug (1) to the rear wheel (6) will be described in detail. As shown in FIGS. 5 and 6, in the lug protrusions (10a) and (10b) near the spokes (8), these lug protrusions (10a) and (10b) are fitted into the hole (3) of the saddle member (2). The auxiliary lug (1) is fitted from the outside of the rear wheel (6) so as to fit in. Then, the headed pins (12) and (13) are inserted through the respective holes (5) of the saddle member (2), and at the tips of the pins (12) and (13), retaining R pins ( 14) is attached.

With the above structure, when the rear wheel (6) is rotationally driven in the direction of the arrow (A) to move the vehicle forward as shown in FIG. 5, the spoke (8) comes into contact with one pin (12) and The rotational driving force of the wheel (6) is transmitted to the auxiliary lug (1).

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of an auxiliary lug structure for a paddy work machine according to the present invention. FIG. 1 is a front view of the auxiliary lug, FIG. 2 is a side view of the auxiliary lug, and FIG. 3 is a plan view of the auxiliary lug. Fig. 4 is a perspective view of the auxiliary lug, Fig. 5 is a side view showing a state in which the auxiliary lug is attached to the rear wheel of the riding type rice transplanter, and Fig. 6 is a diagram showing the auxiliary lug attached to the rear wheel of the riding type rice transplanter. It is a vertical section front view showing the state where it is. (2) ... saddle member, (3) ... hole of saddle member, (4) ...
… Lug plate, (6) …… Wheels, (8) …… Wheel spokes, (10) …… Wheel lug protrusions, (12), (13) …… Pins.

Claims (1)

[Scope of utility model registration request] 1. A wide lug and a hole portion (3) for inserting a lug projection (10) projecting on the outer peripheral surface of a wheel into a saddle member (2) extending over the outer periphery of a traveling wheel (6). A plate (4) is provided, and a pair of circumferential direction pins (12) and (13) that bridge the left and right sides of the saddle member (2) are connected to the spokes (8) of the wheel (6). In the front-back position, and when the wheel (6) is driven to rotate, the spoke (8) has one pin (1
2) Auxiliary lug structure for paddy work machines that can be attached so as to contact with 2).