WHEEL-TYPE WORKING MACHINE

Title:

WHEEL-TYPE WORKING MACHINE

Document Type and Number:

WIPO Patent Application WO/2007/037107

Kind Code:

A1

Abstract:

A wheel-type working machine in which the center of gravity of a machine body is positioned low and the stability of the machine in a working position is secured without regard to the movement of the center of gravity caused by the rotation of a rotation table during work. An operation body (111) integrally rocking with a front axle case (96) is provided at the center in the left-right direction of the front axle case (96), and a rocking lock mechanism (112) for limiting the rocking of the operation body (111) is provided at a machine body frame (6). The rocking lock mechanism (112) has a lock cylinder (115) in which a piston rod (120) is horizontally fixed to the machine frame (6) and a switchover valve (118) for switching two oil chambers (124A, 124B) of the lock cylinder (115) between a communicated state and a closed state. A cylinder tube (116) of the lock cylinder (115) is operably connected to the operation body (111).

Inventors:

TAKEMURA TOSHIHIKO (JP)
SUMIYOSHI RYOHEI (JP)
SUZUKI KUNIHIRO (JP)

Application Number:

PCT/JP2006/317750

Publication Date:

April 05, 2007

Filing Date:

September 07, 2006

Export Citation:

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Assignee:

KUBOTA KK (JP)
TAKEMURA TOSHIHIKO (JP)
SUMIYOSHI RYOHEI (JP)
SUZUKI KUNIHIRO (JP)

International Classes:

B60G17/005; B60G1/02; E02F9/02; E02F9/08; E02F9/20

Foreign References:

EP0803384A2	1997-10-29
JP2559294Y2	1998-01-14
US4393959A	1983-07-19
JPS58167400A	1983-10-03
JP2001047829A	2001-02-20
JPH0510048Y2	1993-03-11
EP0803384A2	1997-10-29
JPH0577347U	1993-10-22
JPH01105664U	1989-07-17

Other References: