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. 26, 1995
Filed:
Jun. 07, 1994
NTN Corporation, Osaka, JP;
Abstract
A device for mechanically changing over the direction of transmission of turning force in which engaging elements are mounted between its driving member and driven member. It prevents the generation of abnormal noise resulting from the repeated engagement and disengagement of engaging elements when turning force is applied from the driven member. Sprags and sprag-supporting retainers are provided between an outer ring as driven member and an inner member as driving member. Also an elastic member is mounted between the outer ring and the inner member. When turning force is transmitted from the outer ring to the inner member, the inner member and one of the retainers begin rotating first, biased by the elastic member. The retainers thus rotate relative to each other, inclining the sprags in the same direction as the inner member to a ready-to-engage position. The sprags are thus prevented from repeatedly engaging and disengaging, so that there will be no abnormal noise.