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Work vehicle, lever unit, and automatic actuator control method

A work vehicle and actuator technology, which is applied to the automatic control of rod units and actuators, and the field of work vehicles, can solve problems such as narrow passages and difficulty in entering and exiting.

Active Publication Date: 2022-03-11
KOMATSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the passage for entering and exiting the cabin is narrow and difficult to enter and exit

Method used

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  • Work vehicle, lever unit, and automatic actuator control method
  • Work vehicle, lever unit, and automatic actuator control method
  • Work vehicle, lever unit, and automatic actuator control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0033]

[0034] (Outline of the configuration of the hydraulic excavator 1)

[0035] figure 1 It is a schematic diagram which shows the structure of the hydraulic excavator 1 of this embodiment.

[0036] The hydraulic excavator 1 includes a vehicle body 2 and a work implement 3 . vehicle body 2 such as figure 1 Shown, have running body 4 and rotating body 5. The traveling body 4 has a pair of traveling devices 4a, 4b. Each travel device 4a, 4b has crawler belts 4c, 4d, and the crawler belts 4c, 4d are driven by driving force from an engine, so that the hydraulic excavator 1 travels.

[0037] The rotating body 5 is placed on the running body 4 . The rotating body 5 is rotatable about an axis along the up-down direction relative to the traveling body 4 by a rotating device not shown.

[0038] A cabin 6 serving as a driver's cab is provided at a front left side of the revolving body 5 . The rotating body 5 accommodates an engine, a hydraulic pump, etc. which are not show...

Embodiment approach 2

[0160] A hydraulic excavator according to Embodiment 2 will be described below.

[0161]

[0162] A hydraulic excavator according to Embodiment 2 is different from Embodiment 1 in the configurations of the left work implement operating lever unit and the control unit. Therefore, in Embodiment 2, the difference from Embodiment 1 will be mainly described.

[0163] Figure 10 It is a diagram schematically showing the left work implement operating lever unit 115 according to the second embodiment. in addition, Figure 10 A block diagram showing the configuration of the control unit 130 is also shown in .

[0164] Compared with the left work implement operating lever unit 15 of Embodiment 1, the left work implement operating lever unit 115 of the second embodiment includes a holding portion 61 for holding the left working implement operating lever 150 at the retracted position P4.

[0165] The holding portion 61 is, for example, a magnet, and may be fixed to the inner side of...

Embodiment approach 3

[0184] Hereinafter, a hydraulic excavator according to Embodiment 3 will be described.

[0185]

[0186] A hydraulic excavator according to Embodiment 3 is different from Embodiment 1 in the configurations of the left work implement operating lever unit and the control unit. Therefore, in Embodiment 3, the difference from Embodiment 1 will be mainly described.

[0187] Figure 13 It is a diagram schematically showing the left work implement operating lever unit 215 according to the third embodiment. in addition, Figure 13 A block diagram showing the configuration of the control unit 130 is also shown in .

[0188] like Figure 13 As shown, the left work implement operating lever unit 215 according to the third embodiment is not provided with the first neutral spring 26 and the second neutral spring 27 compared to the left working implement operating lever unit 15 according to the first embodiment.

[0189] In addition, the control part 130 of Embodiment 3 is the same a...

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Abstract

A hydraulic shovel (1) is provided with a left work machine operating lever (150), a second motor (25), and a control unit (30). The left work device operating lever (150) operates the work device (3). A second motor (25) moves the left work machine operating lever (150). The control unit (30) controls the second motor (25) so that the left work machine operation lever (150) moves to a retracted position (P4) outside the operation range (R1) of the left work machine operation lever (150).

Description

technical field [0001] The invention relates to a work vehicle, a rod unit and an automatic control method for an actuator. Background technique [0002] In a cabin of a working vehicle such as a hydraulic excavator, an entry and exit door is arranged on the side of the driver's seat, and an operation lever is also arranged on the side of the driver's seat. Therefore, the passage for entering and exiting the cabin is narrow, making it difficult to enter and exit. [0003] Therefore, there is disclosed a configuration in which the entire console including the operating lever is flipped up to secure a passage space for an operator to enter and exit (for example, refer to Patent Document 1). [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Patent Laid-Open No. 2002-146839 Contents of the invention [0007] However, in the case of the flip-up structure, since the whole console and the frame are flipped up, a large operation force...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/20E02F3/28E02F3/36E02F9/08E02F9/16E02F9/22
CPCE02F9/20E02F3/28E02F3/36E02F9/08E02F9/16E02F9/22E02F9/2004E02F9/2025E02F9/2246E02F9/163G05G2009/04718G05G2009/04748G05G5/005G05G9/047E02F9/166E02F9/0833G05G1/04G05G17/00E02F9/264G05G1/52
Inventor 加藤雅之小林优树久保田启介
Owner KOMATSU LTD