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. 09, 2001
Filed:
Dec. 17, 1998
Yorishige Yotani, Inuyama, JP;
Shingo Suzuki, Komaki, JP;
Tokai Rubber Industries, Ltd., Komaki, JP;
Abstract
There are provided an inward-bent part,slightly extending to one end side of a cylindrical member,inwardly in a radial direction, and a thin rubber member coated part,on an inner peripheral surface of the cylindrical member, which the rubber member coated part has an inner diameter equal to or smaller than an inner diameter of the inward-bent part. An orifice member,and a diaphragm member,are inserted into the rubber member coated part on one end side of the cylindrical member to close thereby an opening portion on the one end side thereof. A rubber member,subjected to vulcanization and bonding and a fitting member,fixed to the rubber member,are provided on the other end side of the cylindrical member to close thereby an opening portion on the other end side thereof Since the inner diameter of the inward-bent part is made smaller than the outer diameter of the diaphragm member by conducting drawing to the cylindrical member, the diaphragm member is stopped by the inward-bent part. As a result, even if the fastening force is lowered by, for example, the fatigue of the rubber member coated part, it is possible to ensure preventing the diaphragm member and the like from slipping out of the cylindrical member.