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US 10,208,451 B2Granted
Work vehicle and front loader
AssigneeKubota Corporation
InventorsAkihiko Mori, Masataka Takagi, Takahiro Yonekura, Masaki Abe
Life of this patent
Estimating the term…
Abstract
A stand 18 is maintained under a stored posture when the stand 18 is pivoted toward the stored posture side in association with a dumping action of a bucket 13 and a lock mechanism 25 is switched to a locking state. The stand is switched to an in-use posture when the lock mechanism 25 is switched to a releasing state while the stand 18 is maintained under the stored posture by the lock mechanism 25.
Claims8
A work vehicle comprising:
- a front loader including a pair of left and right booms, a bucket supported to free ends of the pair of left and right booms to be pivotable about a bucket pivot axis extending along a vehicle body left-right direction, the front loader being detachably attached to a vehicle body;
- a stand pivotally supported to the front loader to be pivotable about a stand pivot axis extending along the vehicle body left-right direction between an in-use posture for supporting the front loader and a stored posture along a longitudinal direction of the booms, the stand being pivoted to the stored posture in association with a dumping motion of the bucket;
- a lock mechanism switchable between a locking state for holding the stand under the stored posture and a releasing state for releasing the locking mechanism;
- an operational tool comprising one of a lever and a pedal configured to be manually operated by an operator from a vehicle operator portion of the work vehicle in which the operator rides for switching over the lock mechanism to the locking state or the releasing state;
- and
- an interlocking mechanism provided for operatively interlocking the lock mechanism with the operational tool, the interlocking mechanism comprising a first arm having a first end pivotally connected to the operational tool and a second end, a linking rod having a first end pivotally connected to the second end of the first arm and a second end, and a second arm having a first end pivotally connected to the second end of the linking rod and a second end pivotally connected to the lock mechanism,
- wherein when the stand is pivoted to the stored posture in association with the dumping motion of the bucket and the lock mechanism is switched to the locking state, the stand is held under the stored posture by the lock mechanism;
- and
- wherein when the lock mechanism is switched to the releasing posture by the operational tool while the stand is held under the stored posture by the locking mechanism, the stand is switched to the in-use posture.
6 more elements
A front loader comprising:
- a pair of left and right booms;
- a bucket supported to free ends of the pair of left and right booms to be pivotable about a bucket pivot axis extending along a vehicle body left-right direction,
- the front loader being detachably attached to a vehicle body;
- a stand pivotally supported to the front loader to be pivotable about a stand pivot axis extending along the vehicle body left-right direction between an in-use posture for supporting the front loader and a stored posture along a longitudinal direction of the booms, the stand being pivoted to the stored posture in association with a dumping motion of the bucket;
- a lock mechanism switchable between a locking state for holding the stand under the stored posture and a releasing state for releasing the locking state;
- an operational tool comprising one of a lever and a pedal configured to be manually operated by an operator from a vehicle operator portion of the work vehicle in which the operator rides for switching over the lock mechanism to the locking state or the releasing state;
- and
- an interlocking mechanism provided for operatively interlocking the lock mechanism with the operational tool, the interlocking mechanism comprising a first arm having a first end pivotally connected to the operational tool and a second end, a linking rod having a first end pivotally connected to the second end of the first arm and a second end, and a second arm having a first end pivotally connected to the second end of the linking rod and a second end pivotally connected to the lock mechanism,
- wherein when the stand is pivoted to the stored posture in association with the dumping motion of the bucket and the lock mechanism is switched to the locking state, the stand is held under the stored posture by the lock mechanism;
- and
- when the lock mechanism is switched to the releasing posture by the operational tool while the stand is held under the stored posture by the locking mechanism, the stand is switched to the in-use posture.
8 more elements
Dependencies are inferred from the claim text.