Work vehicle and front loader

Patent metadata

Field	Value
Publication number	US-10422104-B2
Application number	US-201815955239-A
Country	US
Kind code	B2
Filing date	Apr 17, 2018
Priority date	Oct 26, 2015
Publication date	Sep 24, 2019
Grant date	Sep 24, 2019

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 actin 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.

First claim

The invention claimed is:

1. A work vehicle comprising:
a front loader that can be attached to or detached from a vehicle body; and
an attaching mechanism for attaching the front loader to the vehicle body;
wherein the attaching mechanism comprises:
an engaged member comprising an attaching frame boss portion provided in an attaching frame of the vehicle body;
an engaging member comprising a hook provided between right and left side frames of the front loader and engageable with the engaged member;
a support member provided between the right and left side frames of the front loader and comprising a stopper having at least one stopper body forming a receiving portion configured to receive and support the attaching frame boss portion; and
a lever provided between the right and left side frames and extending toward the vehicle body, the lever being configured to be switched to an engaged position in which the hook is engaged with attaching frame boss portion, and a disengaged position in which the hook is not engaged with attaching frame boss portion, and

wherein the attaching frame boss portion is configured to be received and supported by the receiving portion of the stopper and the hook of the engaging member is configured to engage the attaching frame boss portion such that the attaching mechanism attaches the front loader to the vehicle body.

2. The work vehicle according to claim 1 , wherein in a lateral side view of the work vehicle, an entirety of the lever is overlapped with the right and left side frames when the lever is switched to the engaged position, and a tip end portion of the lever is exposed from the right and left side frames toward the vehicle frame when the lever is switched to the disengaged position.

3. The work vehicle according to claim 1 , wherein a path between the engaged position and the disengaged position of the lever includes a zigzag path, and the engaged position and the disengaged position of the lever is located on a same straight line along a front/aft direction of the vehicle.

4. A front loader detachably attached to a vehicle body, wherein:
an attaching mechanism is provided for attaching the front loader to the vehicle body;
the attaching mechanism comprises:
an engaging member comprising a hook provided between right and left side frames of the front loader and engageable with an engaged member comprising an attaching frame boss portion provided in an attaching frame of the vehicle body;
a support member provided between the right and left side frames of the front loader and comprising a stopper having at least one stopper body forming a receiving portion configured to receive and support the attaching frame boss portion; and
a lever provided between the right and left side frames and extending toward the vehicle body, the lever being configured to be switched to an engaged position in which the hook is engaged with attaching frame boss portion, and a disengaged position in which the hook is not engaged with attaching frame boss portion, and

wherein the attaching frame boss portion is configured to be received and supported by the receiving portion of the stopper and the hook of the engaging member is configured to engage the attaching frame boss portion such that the attaching mechanism attaches the front loader to the vehicle body.

5. The front loader according to claim 4 , wherein in a lateral side view of the work vehicle, an entirety of the lever is overlapped with the right and left side frames when the lever is switched to the engaged position, and a tip end portion of the lever is exposed from the right and left side frames toward the vehicle frame when the lever is switched to the disengaged position.

6. The front loader according to claim 4 , wherein a path between the engaged position and the disengaged position of the lever includes a zigzag path, and the engaged position and the disengaged position of the lever is located on a same straight line along a front/aft direction of the vehicle.

Assignees

• Kubota Kk

Inventors

• Mori Akihiko
• Takagi Masataka
• Yonekura Takahiro
• Abe Masaki

Classifications

• E02F3/6273 Primary

  using legs to support the beams or arms on the ground during the connecting process · CPC title

• E02F3/34

  with bucket-arms {, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms (with a single arm E02F3/283)} directly pivoted on the frames of tractors or self-propelled machines · CPC title

• E02F3/3417

  Buckets emptying by tilting (E02F3/342, E02F3/345 take precedence) · CPC title

• E02F3/40 Primary

  Dippers; Buckets {; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets (devices to connect tools to arms or booms E02F3/3604; teeth therefor E02F9/28)} · CPC title

• E02F3/3609

  of the quick acting type, e.g. controlled from the operator seat (quick-acting couplers to connect booms or arms to tractors E02F3/627; quick-acting couplers for machines mounted on tractor A01B59/06; couplings of the quick-acting type per se F16L37/00) · CPC title