The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 18, 2000

Filed:

Aug. 29, 1997
Applicant:
Inventors:

Nobushi Yamazaki, Tochigi, JP;

Masao Teraoka, Tochigi, JP;

Takeharu Saeki, Tochigi, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ; F16H / ;
U.S. Cl.
CPC ...
475230 ; 180247 ; 192 / ; 192 / ; 192 6982 ; 475248 ;
Abstract

A differential apparatus includes a differential casing, a pair of output side gears disposed in the differential casing, a differential mechanism distributing driving force of an engine, a clutch for operatively connecting the differential casing with the axles of the vehicle, an actuator for releasing the clutch from its connecting operation, and an urging member for causing the clutch to connect the differential casing with the axles of the vehicle. When the actuator is inactivated, the urging member serves to attain the connecting operation of the clutch. Therefore, even if the actuator is in a bad condition, four-wheel driving condition of the vehicle can be maintained. Therefore, the differential apparatus allows the vehicle to escape from a bad road.


Find Patent Forward Citations

Loading…