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.
Patent No.:
Date of Patent:
Dec. 23, 1997
Filed:
Sep. 13, 1995
Tomoyuki Hara, Isehara, JP;
Kenichi Tobita, Zama, JP;
Tsutomu Niimi, Isehara, JP;
Izumi Amemiya, Isehara, JP;
Toshiharu Takasaki, Sagamihara, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
In a driving force transfer apparatus for a part-time four-wheel driving vechicle, a dog clutch structure is provided at both sides of first and second output axles, the first output axle being connected toward driven road wheels such as rear road wheels and the second output axle being connected toward non-driven road wheels such as front wheels. The dog clutch structure serves to connect the first output axle to the second output axle so that the four road wheels are forced into a four-wheel drive state during a low-speed gear range position switched through a sub transmission mechanism lever. In a first embodiment, a play in each tooth space structure constituting the dog clutch structure is provided so as to make a smooth mesh of the clutch structure, thus an operating force applied to a lever of the sub transmission mechanism can be lowered.