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. 09, 2003
Filed:
Oct. 16, 2002
Norio Uchiyama, Tokyo, JP;
Niles Parts Ltd., , JP;
Abstract
A canceling structure of a combination switch is disclosed, which ensures the returning moment of a cancel cam without increasing the size of a spring. A cancel cam placed on a swing block that can be rotated with a control lever includes pressure contact surfaces on a plane passing through the shaft center of an upper shaft , and the upper shaft is guided along a long hole of a cover. An elastic contact material has pressure surfaces to be brought into contact with the pressure contact surfaces of the cancel cam, and is biased toward the cancel cam along a guide by a coil spring inserted into a blind hole . The pressure surfaces have a shaft-escaping recessed portion forming a predetermined gap between them and the upper shaft when brought into contact with the pressure contact surfaces of the cancel cam. Since the pressure contact surfaces pass through the rotating shaft center, the angel from the shaft center to a contact point with the pressure surface , thereby increasing a returning moment by the pressure of the elastic contact material. Also, since the elastic contact material is long, the movement along the guide becomes smooth.