OPERATION DEVICE OF WORK VEHICLE

• US 20180067513A1
• Filed: 02/19/2016
• Published: 03/08/2018
• Est. Priority Date: 02/19/2016
• Status: Active Grant

• Current Assignee: Komatsu Ltd.
• Original Assignee: Komatsu Ltd.
• Inventors: KURE, Kazuki, YAMAMOTO, Hiroki, AWAZU, Akane
• Granted Patent: US 10,640,950 B2
• Time in Patent Office: Days
• CPC Class Codes: E02F 3/84 Drives or control devices therefor , e.g. hydraulic drive systems
• CPC Class Codes: E02F 9/2004 Control mechanisms, e.g. control levers control levers per se G05G
• CPC Class Codes: G05G 1/58 Rests or guides for relevant parts of the operator's body

Abstract

An operation device includes a hold portion having a base end and a leading end, and an operation portion attached to the leading end of the hold portion. The operation portion includes a finger rest extending substantially along a direction in which the hold portion extends from the base end to the leading end, and first to third operation switches disposed with the finger rest interposed therebetween.

Claims

1. An operation device of a work vehicle, the operation device comprising:

a hold portion including a base end attached to the work vehicle and a leading end opposite to the base end; and

an operation portion attached to the leading end, the operation portion including a finger rest extending substantially along a direction in which the hold portion extends from the base end to the leading end, and a plurality of operation switches disposed with the finger rest interposed between the switches.

2. The operation device of a work vehicle according to claim 1, wherein

at least one of one side and the other side between which the finger rest is interposed includes at least two operation switches among the plurality of operation switches, and

a minimum value of a dimension of the finger rest in a direction orthogonal to a direction in which the finger rest extends is larger than a minimum value of a distance between the at least two switches.

3. The operation device of a work vehicle according to claim 1, wherein

the plurality of operation switches each have an operation face, and

a minimum value of a dimension of the finger rest in a direction orthogonal to a direction in which the finger rest extends is larger than a minimum value of a transverse length passing through a center of the operation face of each of the plurality of operation switches.

4. The operation device of a work vehicle according to claim 1, wherein the finger rest has one shape selected from the group consisting of depression, groove, grain, and step formed in a surface of the operation portion.

5. The operation device of a work vehicle according to claim 1, wherein the finger rest includes a portion formed lower than a top end of the hold portion.

6. The operation device of a work vehicle according to claim 1, wherein the finger rest is formed at a position crossing a line connecting a center of the base end of the hold portion and a center of the leading end of the hold portion, when the hold portion is seen from a side where the finger rest is formed in the operation portion.

7. The operation device of a work vehicle according to claim 1, wherein

the plurality of operation switches include a first operation switch, a second operation switch disposed below the first operation switch, and a third operation switch disposed below the second operation switch, and

the first operation switch, the second operation switch, and the third operation switch are arranged on an arc having a center at the leading end of the hold portion as seen from a side where the first operation switch, the second operation switch, and the third operation switch are mounted.

8. The operation device of a work vehicle according to claim 7, wherein the third operation switch is disposed at a shorter distance from the center of the arc than a distance from the center to the first operation switch and than a distance from the center to the second operation switch.

9. The operation device of a work vehicle according to claim 1, wherein

the operation portion includes one surface on one side and the other surface on the other side with the finger rest interposed between the one side and the other side,

on each of the one surface and the other surface, at least one of the plurality of operation switches is mounted, and

the one surface is inclined with respect to the other surface so that a dimension of a portion protruding from the other surface increases as a distance from the hold portion increases.

10. The operation device of a work vehicle according to claim 1, wherein a protrusion is formed at the base end of the hold portion, the protrusion being a surface of the base end protruding toward a side from which the hold portion is seen when the operation device is seen from a side where the finger rest is formed in the operation portion.

11. An operation device of a work vehicle, the operation device comprising:

a hold portion configured to be held in a palm of one hand of an operator operating the operation device; and

an operation portion attached to a leading end of the hold portion, the operation portion including at least three operation switches to be operated by a finger of the operator, and the at least three operation switches being arranged on an arc having a center at the leading end of the hold portion as seen from a side where the at least three operation switches are arranged, one of the at least three operation switches being disposed at a shorter distance from the center of the arc than a distance from the center to other operation switches of the at least three operation switches.

12. An operation device of a work vehicle, the operation device comprising:

a hold portion configured to be held in a palm of one hand of an operator operating the operation device; and

an operation portion attached to a leading end of the hold portion, the operation portion including a plurality of operation switches to be operated by a finger of the operator, and a finger rest formed between the plurality of switches for allowing the finger of the operator operating the operation switches to rest on the finger rest.