HYDRAULIC DRIVING DEVICE FOR STEERING WHEEL OF DUMP TRUCK

Title:

HYDRAULIC DRIVING DEVICE FOR STEERING WHEEL OF DUMP TRUCK

Document Type and Number:

WIPO Patent Application WO/1993/008039

Kind Code:

A1

Abstract:

A hydraulic driving device for the steering wheel of a dump truck in which a hydraulic motor can be mounted and/or dismounted therefrom after it has been assembled to thereby make the size of the hydraulic motor larger. A driving shaft (20) is rotatably supported on a supporting shaft portion (7) of a receiving seat (6) supported by a yoke (5), and a steering wheel (2) is rotatably mounted on the outer circumference of this supporting shaft portion (7). The steering wheel (2) and one end of the driving shaft (20) are coupled together via a speed reduction mechanism (27), and the motor main body (33) of a hydraulic motor (32) is mounted by means of a bolt (34) on the supporting shaft portion (7) in a position opposite to the steering wheel (2). The rotating shaft (35) of the motor is caused to protrude inside the supporting shaft portion (7) so as to be coupled to the other end of the driving shaft (20), whereby it is possible to mount or dismount the motor (32) by tightening or loosening the bolt (34).

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Inventors:

NAGAI TAKAO (JP)
SUGANO YUKIO (JP)
HASEGAWA NOBUKI (JP)
MORI MASAKI (JP)

Application Number:

PCT/JP1992/001345

Publication Date:

April 29, 1993

Filing Date:

October 15, 1992

Export Citation:

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Assignee:

KOMATSU MFG CO LTD (JP)

International Classes:

B60G3/00; B60G7/00; B60G9/00; B60G13/00; B60K7/00; B60K17/04; B60K17/10; B60K17/30; B60K17/356; B62D5/07; (IPC1-7): B60K7/00

Foreign References:

JPS4920824A	1974-02-23
JPS5653924A	1981-05-13
JPS5028508Y1	1975-08-22
JPS6018981Y2	1985-06-08

Other References: