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US 2019/0194906 A1Published application
Front Loader and Working Machine
AssigneeKubota Corporation
InventorRobert Stewart Boyd
Life of this patent
Estimating the term…
Abstract
A link operating mechanism is provided spanning a bucket and a stand. The link operating mechanism causes, using a swing force of the bucket, a bending or stretching link to bend so that propping and supporting of the bending or stretching link are released.
Claims5
A front loader comprising:
- a boom configured to be removably coupled to a vehicle body;
- a bucket supported at a front end of the boom;
- a stand configured to support the boom, when removed from the vehicle body, in a state in which the bucket is engaged on the ground;
- a bending or stretching link that is provided spanning the boom and the stand, and is configured to prop and support the stand in a state in which the stand is engaged on the ground;
- and
- a link operating mechanism that is provided spanning the bucket and the stand, and is configured to cause, using a swing force of the bucket, the bending or stretching link to bend so that the propping and supporting of the bending or stretching link are released,
- wherein
- the stand is configured to be raised and lowered between a lowered and used position at which the stand is lowered with respect to the boom and supports the boom, and a raised and stored position at which the stand is raised with respect to the boom,
- the bending or stretching link includes:
- a boom-side arm swingably supported by the boom;
- a stand-side arm swingably coupled to the stand;
- and a coupling shaft for connecting a free end portion of the boom-side arm and a free end portion of the stand-side arm so as to be relatively swingable, whereby the bending or stretching link is switchable between a bent state in which the stand is brought to the raised and stored position and a stretched state in which the stand is brought to the lowered and used position, and
- when the bending or stretching link is in the bent state, the coupling shaft is located forward of a pivot point of the boom-side arm with respect to the boom, and the coupling shaft is located forward of a pivot point of the stand-side arm with respect to the stand.
10 more elements
A working vehicle including a vehicle body and a front loader supported by the vehicle body,
- the front loader comprising:
- a boom configured to be removably coupled to a vehicle body;
- a bucket supported at a front end of the boom;
- a stand configured to support the boom, when removed from the vehicle body, in a state in which the bucket is engaged on the ground;
- a bending or stretching link that is provided spanning the boom and the stand, and is configured to prop and support the stand in a state in which the stand is engaged on the ground;
- and
- a link operating mechanism that is provided spanning the bucket and the stand, and is configured to cause, using a swing force of the bucket, the bending or stretching link to bend so that the propping and supporting of the bending or stretching link are released,
- wherein
- the stand is configured to be raised and lowered between a lowered and used position at which the stand is lowered with respect to the boom and supports the boom, and a raised and stored position at which the stand is raised with respect to the boom,
- the bending or stretching link includes:
- a boom-side arm swingably supported by the boom;
- a stand-side arm swingably coupled to the stand;
- and a coupling shaft for connecting a free end portion of the boom-side arm and a free end portion of the stand-side arm so as to be relatively swingable, whereby the bending or stretching link is switchable between a bent state in which the stand is brought to the raised and stored position and a stretched state in which the stand is brought to the lowered and used position, and
- when the bending or stretching link is in the bent state, the coupling shaft is located forward of a pivot point of the boom-side arm with respect to the boom, and the coupling shaft is located forward of pivot point of the stand-side arm with respect to the stand.
11 more elements
Dependencies are inferred from the claim text.