US 11,690,314 B2Granted

Mower

AssigneeKubota Corporation

InventorsTerumasa Kobayashi, Seiya Sato, Ryusuke Kawamoto

Life of this patent

Estimating the term…

Abstract

There are included a passage portion provided at an upper surface portion of a mower deck, front and back slope portions and provided at front and back portions of the passage portion, front and back supporting portions supporting the slope portions in such a manner that the slope portions are movable in the front-back direction and swingable in the up-down direction, and front and back linking portions that are supported in such a manner as to be swingable in the front-back direction about axes extending in the left-right direction and that are connected with the slope portions. Operating the front and back linking portions in the front-back direction causes the front and back slope portions to be operated to the storage and use positions.

Claims8

Dependent claims

A mower, comprising:

a passage portion provided at each of a right portion and a left portion of an upper surface portion of a mower deck and oriented in a front-back direction on which passage portion a wheel of a work vehicle passes;
a front slope portion provided at a front portion of the passage portion;
a back slope portion provided at a back portion of the passage portion;
a front supporting portion supporting the front slope portion in such a manner as to allow the front slope portion to move in the front-back direction and swing in an up-down direction;
a back supporting portion supporting the back slope portion in such a manner as to allow the back slope portion to move in the front-back direction and swing in the up-down direction;
a front linking portion that is supported in such a manner as to swing in the front-back direction about an axis extending in a left-right direction and that is connected with the front slope portion;
and
a back linking portion that is supported in such a manner as to swing in the front-back direction about an axis extending in the left-right direction and that is connected with the back slope portion,
wherein:
one of the front supporting portion of the front slope portion and the back supporting portion of the back slope portion comprises:
a first elongate hole portion which extends in the front-back direction and is present in the front or back slope portion corresponding to said one of the front supporting portion and the back supporting portion, and
a first shaft portion present through the first elongate hole portion in the left-right direction and attached to the passage portion,
as a result of the front linking portion being operated in the front-back direction, the front slope portion is operated, due to the front linking portion and the front supporting portion, to a front storage position provided at the passage portion and to a front use position at which the front slope portion extends from the front portion of the passage portion obliquely in a lower front direction such that a front portion of the front slope portion is capable of coming into contact with ground,
as a result of the back linking portion being operated in the front-back direction, the back slope portion is operated, due to the back linking portion and the back supporting portion, to a back storage position provided at the passage portion and to a back use position at which the back slope portion extends from the back portion of the passage portion obliquely in a lower back direction such that a back portion of the back slope portion is capable of coming into contact with the ground, and
in the front or back storage position corresponding to said one of the front supporting portion and the back supporting portion, the first shaft portion is at a first end portion of the first elongate hole portion, and in the front or back use position corresponding to said one of the front supporting portion and the back supporting portion, the first shaft portion is at a second end portion of the first elongate hole portion, the second end portion being on an opposite side to the first end portion.

12 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/896,473Filed 9 Jun 2020
Priority: JP JP2019-20487512 Nov 2019
Published: US 2021/0137001 A113 May 2021
Granted: 4 Jul 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

A01D 34/001
Mowers ; Mowing apparatus of harvesters: accessories not otherwise provided for
A01D 34/64
Having cutters rotating about a vertical axis: mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
A01D 34/661
With two or more cutters: mounting means
A01D 34/81
Having cutters rotating about a vertical axis: casings; Housings

Family

US 2021/0137001 A1Pre-grant publication · published 13 May 2021
US 11,690,314 B2This patent

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

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Abstract

A mower, comprising:

a passage portion provided at each of a right portion and a left portion of an upper surface portion of a mower deck and oriented in a front-back direction on which passage portion a wheel of a work vehicle passes;
a front slope portion provided at a front portion of the passage portion;
a back slope portion provided at a back portion of the passage portion;
a front supporting portion supporting the front slope portion in such a manner as to allow the front slope portion to move in the front-back direction and swing in an up-down direction;
a back supporting portion supporting the back slope portion in such a manner as to allow the back slope portion to move in the front-back direction and swing in the up-down direction;
a front linking portion that is supported in such a manner as to swing in the front-back direction about an axis extending in a left-right direction and that is connected with the front slope portion;
and
a back linking portion that is supported in such a manner as to swing in the front-back direction about an axis extending in the left-right direction and that is connected with the back slope portion,
wherein:
one of the front supporting portion of the front slope portion and the back supporting portion of the back slope portion comprises:
a first elongate hole portion which extends in the front-back direction and is present in the front or back slope portion corresponding to said one of the front supporting portion and the back supporting portion, and
a first shaft portion present through the first elongate hole portion in the left-right direction and attached to the passage portion,
as a result of the front linking portion being operated in the front-back direction, the front slope portion is operated, due to the front linking portion and the front supporting portion, to a front storage position provided at the passage portion and to a front use position at which the front slope portion extends from the front portion of the passage portion obliquely in a lower front direction such that a front portion of the front slope portion is capable of coming into contact with ground,
as a result of the back linking portion being operated in the front-back direction, the back slope portion is operated, due to the back linking portion and the back supporting portion, to a back storage position provided at the passage portion and to a back use position at which the back slope portion extends from the back portion of the passage portion obliquely in a lower back direction such that a back portion of the back slope portion is capable of coming into contact with the ground, and
in the front or back storage position corresponding to said one of the front supporting portion and the back supporting portion, the first shaft portion is at a first end portion of the first elongate hole portion, and in the front or back use position corresponding to said one of the front supporting portion and the back supporting portion, the first shaft portion is at a second end portion of the first elongate hole portion, the second end portion being on an opposite side to the first end portion.

12 more elements

Facts

Application

16/896,473Filed 9 Jun 2020

Priority

JP JP2019-20487512 Nov 2019

Published

US 2021/0137001 A113 May 2021

Granted

4 Jul 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

A01D 34/001
Mowers ; Mowing apparatus of harvesters: accessories not otherwise provided for
A01D 34/64
Having cutters rotating about a vertical axis: mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
A01D 34/661
With two or more cutters: mounting means
A01D 34/81
Having cutters rotating about a vertical axis: casings; Housings