JPH064666Y2 - Lawn mower connection structure of lawn mower - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is capable of ascending and descending via a link mechanism having a front swing link and a rear swing link that are vertically swingably attached to a traveling machine body. Also, the present invention relates to a lawnmower connecting portion structure of a lawnmower in which a removable lawn mower is connected to the traveling machine body by being located at a central portion of the traveling machine body.

[Problems to be solved by conventional technologies and devices]

In the above lawnmower, when removing the lawnmower for using the traveling machine body for purposes other than lawn mowing work, it is better to remove it between the link mechanism and the lawn mower device than to remove it between the traveling machine body and the link mechanism. Also, since the operation target location is located at a low level, the work is easy. In this case, the front swing link and the rear swing link, which are disconnected from the lawnmower, need to be lifted from the traveling machine body so as not to interfere with traveling so that the retracted mounting state is increased. However, in the conventional machine, for example, Japanese Patent Laid-Open No. 61-81717
As shown in the publication, the front swing link and the rear swing link must be separately stored, which requires a great deal of labor to store them.

An object of the present invention is to modify so that the labor for storing the link can be eliminated and the structure can be simplified as much as possible.

[Means for solving problems]

The characteristic configuration of the present invention is to connect the front swinging link and the rear swinging link in the same manner to the traveling machine body in the lawnmower connecting portion structure of the lawnmower mentioned above. In addition to providing the connecting link, one spring for urging the front swing link and the rear swing link in a state of being retracted and attached to the traveling machine body is provided. The action and effect thereof are as follows. Is.

[Action]

In the connected state of the lawnmower, the front swing link and the rear swing link are lowered to the traveling machine body due to the weight of the lawnmower, so that the lawn mower can be grounded.
When the lawnmower is removed, springs are attached to the front swing link and the rear swing link so that the front swing link and the rear swing link can be biased by the springs in the retracted state in which they are raised relative to the traveling body regardless of the weight of these links and the connecting links. Set the power. Then, even if only one spring is provided so that it directly acts on the front swing link, the rear swing link, or the connecting link, it substantially acts on all the links because of the connecting link. Both front and rear swing links are automatically raised and stored by springs by simply removing the device.

[Effect of device]

The forward swing link and rear swing link can be automatically retracted due to the connecting link and the spring, so that the traveling machine can be used for purposes other than lawn mowing for convenience in terms of preparatory operation. became.

In addition, the link can be automatically stored by a single spring due to the action of the connecting link, which simplifies the structure and is economically advantageous.

〔Example〕

 Next, examples will be shown.

As shown in Fig. 2, the front wheels (1) and rear wheels (2) of the vehicle
A lawn mowing device (4) is movably connected to a central portion of the vehicle through a link mechanism (3), and the rotary shaft (5) of the output of the engine (E) provided on the traveling machine body is connected. It is configured to be transmitted to the lawn mower (4) via the, and the lift lever (6) is configured to raise and lower the lawn mower (4) with respect to the traveling machine body, so that the riding lawn mower is Configured.

As shown in FIGS. 1 and 2, the link mechanism (3) is a pair of left and right front swing links attached to the traveling machine body frame (7) so as to swing vertically around the axis (P ₁ ). (8), (8), a pair of left and right rear swing links (9), (9) attached to the frame (7) so as to swing vertically around the shaft core (P ₂ ), all of the above Each of the swing links (8), (8) and (9), (9) is composed of a connecting link (10) for interlocking.

And the connecting link (10) is the left and right front swing links (8), (8).
Front swing link (8) by connecting both ends to the free end of rotatably separately. The first link portion (10a) connecting (8),
A second link part in which the left and right rear swing links (9), (9) are rotatably connected at their both ends to the rear swing links (9), (9) interlockingly. (10b), first link part (10a) and second
It is formed by a pair of left and right third link parts (10c), (10c) connecting the link parts (10b), respectively, and all swing links (8), (8) and (9), ( 9) is interlocked to move up and down in the same direction as the traveling machine body.

A pair of left and right connecting hooks (11), (11) provided on the front side of the lawnmower (4) are used to connect the lawnmower (12), (12) at both ends of the first link portion (10a). And releasably hooked and engaged with each other, and one of the pair of left and right slide type connecting pins (13) and (13) provided on the rear side of the lawnmower (4) is connected to one of the third links. In the lawn mower connecting hole (14) on the rear end side of the portion (10c), and the other of the third link portion (1
0c) The lawnmower connecting holes (14) on the rear end side are inserted into the lawn mower connecting holes (14) so that they can be removed and removed, and the springs (15) maintain the inserted state to connect the lawnmower (4). I am doing it. That is, the lawn mower (4) is a connecting link
The link mechanism (3) is linked to the link mechanism (10), and the lawnmower (4) can be detached from the link mechanism (3).

A spring (16) is raised over the second link portion (10b) and the frame (7) through the connecting link (10) to raise the front swing link (8) and the rear swing link (9). It is attached so as to urge it. When the lawnmower (4) is attached, the front swing link (8) and the rear swing link (9) are springs.
Regardless of the action of (16), the weight of the lawnmower is lowered so that the gauge wheel (17) of the lawnmower (4) can be grounded so that work can be performed. Configured. When the lawnmower (4) is removed, the front swing link (8) and the rear swing link (9) are spring-loaded.
By the urging force of (16) and the action of each of the long holes (18a) provided in the lawn mowing device pulling link (18) for connecting the connecting link (10) and the lift lever (6), the traveling machine body It is configured so that it is automatically operated in a retracted and mounted state that is not raised and does not hinder the traveling of the airframe.

[Another embodiment]

In order to upwardly bias the front swing link (8) and the rear swing link (9), a spring for that purpose is attached to the connecting ring (10), and the front swing link (8) and the rear swing link (9) are attached. ) May be adopted and implemented.

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]

1 is a perspective view of a link mechanism, and FIG. 2 is a side view of a lawn mower according to the present invention. (3) …… Link mechanism, (4) …… Mower, (8) …… Front swing link, (9) …… Rear swing link, (10) …… Connecting link, (16) …… spring.

Claims (1)

[Scope of utility model registration request] 1. A link mechanism having a front swing link (8) and a rear swing link (9) mounted on a traveling body so as to swing vertically.
(3) A lawn mower connecting portion structure of a lawn mower in which the detachable lawnmower (4) is connected to the traveling body so that it can be lifted and lowered via the (3) and is located at the center of the traveling body. The front swing link (8) and the rear swing link (9) are provided with a connecting link (10) that connects the front swing link (8) and the rear swing link (9) so as to move up and down in the same direction with respect to the traveling machine body. 8) and a structure for connecting a lawnmower of a lawnmower, which is provided with one spring (16) for urging the rear swinging link (9) in a state of being retracted and attached to the traveling machine body.