JPH0687697B2 - Supporting structure for grass container of riding lawn mower - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is designed to feed grass clippings from a mower into a grass collection container through a duct in a state in which the grass collection container is tilted to the rear of the machine body. With the construction, the support shafts projecting from the both side surfaces of the grass collection container are placed on a pair of guide rails extending rearward of the machine body, and the grass collection container can be moved rearward and near the rear end of the guide rail. The present invention relates to a grass collection container support structure for a riding type lawnmower that is configured to be rotatable around the axis of a support shaft of the grass collection container.

[Conventional technology]

As described above, the grass container is rotatably supported about the horizontal axis by changing the posture of the lid part of the grass container upward or downward when the grass grass is full. It is a structure for making it easier to take out the grass clippings in the grass collection container, and moving the grass collection container rearward is done so that part of the grass collection container does not collide with the rear part of the aircraft when the posture is changed. This is to secure a space for dynamic operation.

Then, if the grass container is retracted to a position where the posture can be changed by the rotation operation, it is necessary to hold the support shaft of the grass container for the rotation operation at that position. There is a model in which a concave portion is provided in the vicinity and the support shaft of the grass container is supported by being dropped into the concave portion, and the grass container is rotated at this position.

[Problems to be solved by the invention]

With the above-mentioned structure, an impact will inevitably occur when the support shaft of the grass container moves on the guide rail and falls into the recess. Especially when the grass container is full of grass clippings, the weight of the grass container is considerable,
The impact force mentioned above is expected to be particularly large,
This is a problematic structure because of the strength of the guide rail that receives the impact force directly.

In view of this problem, the present invention has an object to provide a structure in which the above-mentioned impact force is not generated.

[Means for solving problems]

A feature of the present invention is that in the grass collection container support structure of the riding lawn mower mentioned above, a member for elastically engaging and holding the support shaft of the grass collection container near the rear end of the guide rail is provided. The action and effect are as follows.

[Action]

When the above-mentioned member is provided, when the grass container is moved rearward along the guide rail, the support shaft of the grass container does not drop, but the elastic engaging action of the member. Since it is held in that position by means of, no shocking movements occur in this case.

〔The invention's effect〕

As described above, in the riding lawn mower mentioned above, when the grass container is moved to a position where the posture can be changed, it is possible to prevent the generation of a shocking force, and in terms of the strength of the guide rail. This will improve the safety of the.

〔Example〕

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

As shown in FIG. 6, an engine (3) is provided in the front part of the body supported by front wheels (1) and rear wheels (2), and a control part (4) is provided in the center, and both wheels (1) are provided. , (2) is provided between the mower (5) and the mower (5) so that the grass clippings cut by the mower (5) are fed into the grass container (7) at the rear of the fuselage through the duct (6). It constitutes a lawn mower.

As shown in FIG. 4 and FIG. 5, the grass container (7) is cylindrical and has a resin-molded main body (8) and a lid body (9), and the lid body (9) is shown in the figures. As described above, the substantially lower half is opened as an air discharge opening (9b), and the upper half is also provided with a grass insertion opening (9a).

A net body (10) is stretched on the inner surface of the lid body (9), and a rubber plate material (11) having radial cuts is provided at the grass insertion opening (9a). The lid body (9) constructed as described above is fixed to the rear part of the machine body through the contact plate (24) as shown in FIG. 4, and the duct (6) is inserted into the grass insertion opening (9a). Perform the work with the grass container (7) tilted forward. Then, the mowed grass cut by the mower (5) is sent into the grass container (7) through the duct (6) along with the air blown from the mower (5), and the air blown from the mower (5) is covered ( It goes out through the opening (9b) provided in 9) and the exhaust ports (22), (23) provided in the upper surface of the main body or the like.

When the grass container (7) is full of grass clippings, only the main body (8) of the grass container (7) is moved to the rear and rotated around the axis of the support shaft (12) described later. Then, the grass clippings in the main body (8) are discarded. To describe the structure in detail, as shown in FIGS. 1 and 2, the grass collection container (7) is supported from both sides of the main body (8). The shaft (12) protrudes, and the roller (12a) is rotatably attached to the support shaft (12). Further, a pair of left and right guide rails (13) are extended obliquely rearward and upward from the rear part of the machine body, and the rollers (12a) are mounted on the guide rails (13) to support the main body (8). .

On the other hand, the horizontal axis core near the driver's seat (16) of the control section (4) of the aircraft
An artificial operation lever (17) is pivotally supported around (P ₂ ) so as to be swingable, and an operation arm (17a) extends from the artificial operation lever (17). A crank member (14) is fixed to the support shaft (12) of the grass container (7), and the crank member (14) and the operation arm (17a) are linked to each other as shown in the figure. Are connected via.

When the human operation lever (17) is operated downward from the state shown in FIG. 1, the grass collection container (7) is rotated downward by the action of the link link (15) and the crank member (14). However, the connecting pin (18) between the crank member (14) and the link link (16) is extended outward, and the guide rail (1
3) Since the structure is such that it is engaged in the guide part (19) provided on the lower surface, the crank member (14) does not rotate at the position shown by the solid line in FIG. By the operation, the main body (8) of the grass container (7) moves backward on the guide rail (13) while keeping the forward tilted posture.

As shown in FIGS. 1 and 3, a member (20) formed by bending a leaf spring is provided near the rear end of the guide rail (13), and the roller (12a) of the support shaft (12) is located at this position. ) Is elastically engaged and held. Further, at this position, the guide portion (19) is cut off, and at this position, the main body (8) is rotated downward by the linkage link (15) and the crank member (14). Further, this series of operations is reversible, and by returning the artificial operation lever (17), the main body (8) is returned and rotated at the position of the member (20), and the crank member (14) is rotated. Connecting pin (18)
It can be put back into the guide portion (19) and returned to the state shown in FIG.

[Brief description of drawings]

The drawings show an embodiment of a grass collecting container support structure for a riding lawn mower according to the present invention, and FIG. 1 is a side view of the vicinity of the grass collecting container in which the grass collecting container is moved backward and rotated downward. FIG. 2 shows a state, FIG. 2 is a front view of the vicinity of the connecting portion between the grass container and the crank member and the link, and FIG. 3 is a side view showing the movement of the crank member and the link near the rear end of the guide rail.
FIG. 4 is a vertical side view of the grass container, FIG. 5 is an exploded perspective view of the grass container, and FIG. 6 is an overall side view of the riding lawn mower. (5) …… Moore, (6) …… Duct, (7) …… Grass container, (12) …… Support shaft, (13) …… Guide rail,
(20) …… Material.

Claims (1)

[Claims] 1. A structure for feeding grass clippings from a mower (5) into a grass collection container (7) through a duct (6) in a state where the grass collection container (7) is tilted to the rear of the body. In addition, the support shafts (12) and (12) projecting from both side surfaces of the grass collection container (7) are placed on a pair of guide rails (13) and (13) extending rearward of the machine body to collect the grass collection container. (7) can be moved rearward, and the guide rails (13), (13)
The guide rail (13) is a grass container supporting structure for a riding type lawnmower that is configured to be rotatable around the axis of the support shaft (12) of the grass container (7) near the rear end. ), (13) A grass collecting container for a riding lawn mower provided with a member (20) elastically engaging and holding the support shafts (12), (12) of the grass collecting container (7) near the rear end. Support structure.