Title:
SUSPENSION SYSTEM FOR WORK VEHICLE
Document Type and Number:
WIPO Patent Application WO/1993/004881
Kind Code:
A1
Abstract:
A suspension system comprising buffer springs (21L, 21R) interposed between an axle (1) and a chassis frame (7), a pair of double-acting cylinders (22L, 22R) provided a preset distance apart in the lateral direction of the vehicle and each pivotally supported on the tube (22a) side and rod (22b) side by the chassis frame (7) and the axle (1), respectively, and a link (24) coupled to the chassis frame (7) at one end and to the axle (1) at the other end thereof in such a manner that horizontal displacements in left and right, and forward and rearward directions relative to the vehicle are restricted, while displacement in the vertical direction are allowed, wherein the double-acting cylinders (22L, 22R) are kept free while running, and are locked while digging work is performed.
Inventors:
TAHARA KOUJI (JP)
TAMURA SEIJI (JP)
TAMURA SEIJI (JP)
Application Number:
PCT/JP1992/001132
Publication Date:
March 18, 1993
Filing Date:
September 04, 1992
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY (JP)
International Classes:
B60G9/02; B60G17/005; (IPC1-7): B60G9/02; B60G17/005
Foreign References:
| JPS61179009U | 1986-11-08 | |||
| JPS5541939U | 1980-03-18 | |||
| JPS5854247Y2 | 1983-12-10 | |||
| JPS5869110U | 1983-05-11 | |||
| JPS6121608U | 1986-02-07 | |||
| JPS5989708U | 1984-06-18 |
Other References:
See also references of EP 0603394A4
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