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:
Jan. 27, 2015
Filed:
Mar. 14, 2011
Keisuke Yano, Kikuchi, JP;
Ryuichi Hashimoto, Yamaga, JP;
Yasuo Hayashida, Kumamoto, JP;
Shingo Mori, Yamaga, JP;
Keisuke Yano, Kikuchi, JP;
Ryuichi Hashimoto, Yamaga, JP;
Yasuo Hayashida, Kumamoto, JP;
Shingo Mori, Yamaga, JP;
Omron Corporation, Kyoto, JP;
Abstract
An object of the invention is to provide a contact switching device that produces minimal hitting sound at the time of return. In the contact switching device, a movable iron core () provided at one end portion of a movable shaft () is attracted to a fixed iron core (), based on excitation and degauss of an electromagnet portion (), by which the movable shaft () reciprocates in a shaft center direction, and a movable contact () of a movable contact piece () arranged at another end portion of the movable shaft () contacts and departs from a fixed contact (). Particularly, at the time of return, an annular flange portion () provided at an intermediate portion of the movable shaft () abuts on an annular receiving portion () of the magnet holder () to thereby restrict a position of the movable iron core ().