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Title:
PLANETARY DIFFERENTIAL GEAR DEVICE FOR STEERING
Document Type and Number:
WIPO Patent Application WO/1991/004426
Kind Code:
A1
Abstract:
A differential gear device for the transverse-shaft driving unit of the crawler vehicle, which is a planetary differential gear for steering structurally compact and economically excellent. For attaining the objects, the device is provided with a first input member (51) rotated by a driving unit (2), a second input member (54) rotated by a steering motor unit (3), and first and second output members (43, 44) for outputting the power inputted from the input members to the outside. Two sets of planetary gear units to drive the first and second output members at the same speed in the same direction while rotating the first input member (51) only and keeping the second input member (54) stopped and, on the other hand, rotating the second input member (54) only and keeping the first input member stopped so as to rotate said first and second output members at the same speed in the opposite direction, the first planetary gear unit (10) and second one (30) being disposed to be coaxial with each other. The first planetary gear unit (10) is provided with a pair of planetary gears comprising two gears (12), (13) meshing each other.

Inventors:
ISHINO TSUTOMU (JP)
MARUYAMA RYOICHI (JP)
SATO YOSHITO (JP)
Application Number:
PCT/JP1990/001196
Publication Date:
April 04, 1991
Filing Date:
September 19, 1990
Export Citation:
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Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
F16H1/36; B62D11/10; F16H48/10; (IPC1-7): B62D11/10; F16H1/42
Foreign References:
JPS4916132A1974-02-13
JPS4854625A1973-08-01
JPS63133470U1988-08-31
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