US 11,236,483 B2Granted

Attaching-detaching structure of a front loader, front loader and work vehicle

AssigneeKubota Corporation

InventorsShin Torii, Yuta Ozeki

Life of this patent

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Abstract

A readily attaching-detaching structure of a front loader that can make the attaching and detaching work to a vehicle body easier, a front loader, and a work vehicle. The attaching-detaching structure of a front loader is provided with a first retained member that is on either a main frame on a vehicle body or a sub-frame that supports a boom; a second retained member on the other of the main frame or the sub-frame; a first retaining member that retains the first retained member and is on the side opposite of the first retained member; a second retaining member that retains the second retained member and is on the side opposite to the second retained member; a first guiding member that guides the first retained member to the first retaining member when the sub-frame is mounted on the main frame; and a second guiding member that guides the second retained member to the second retaining member when the sub-frame is mounted on the main frame.

Claims8

Dependent claims

A readily attachable and detachable structure of a front loader comprising:

a first retained part provided on one of a main frame that is provided on a vehicle body or a sub-frame that is detachable with the main frame and supports a boom;
a second retained part provided on the other of the main frame or the sub-frame;
a first retaining part that is provided on the side opposite to the side on which the first retained part is provided and retains the first retained part;
a second retaining part that is provided on the side opposite to the side on which the second retained part is provided and retains the second retained part;
a first guiding part that guides the first retained part to the first retaining part when the sub-frame is mounted on the main frame;
and
a second guiding part that guides the second retained part to the second retaining part when the sub-frame is mounted on the main frame, wherein:
the first retained part is provided on the main frame,
the second retained part is provided on the sub-frame,
the first retaining part is provided on the sub-frame,
the second retaining part is provided on the main frame,
the first guiding part is provided on the sub-frame, and
the second guiding part is provided on the main frame.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/950,264Filed 17 Nov 2020 · continuation
Priority: JP JP2017-09447411 May 2017
Published: US 2021/0071386 A111 Mar 2021
Granted: 1 Feb 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

E02F 3/627
Mechanically-driven: devices to connect beams or arms to tractors or similar self-propelled machines, e.g. drives therefor
B62D 49/02
Tractors: modified to take lifting devices
E02F 3/34
With digging tools mounted on a dipper- or bucket-arm , i.e. there is either one arm or a pair of arms, e.g. dippers, buckets: with bucket-arms ,…
A01D 87/0076
Mounted on the tractor but having their own lifting device: front loaders

Family

Application15/975,104Parent of this continuation · filed 9 May 2018
US 2021/0071386 A1Pre-grant publication · published 11 Mar 2021
US 10,876,271 B2Parent of this continuation
US 2018/0327998 A1Published application
US 11,236,483 B2This patent

From the US filing history. Foreign family members aren’t listed.