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:
May. 06, 2003
Filed:
Jul. 17, 2001
Satoshi Umemura, Kamo-gun, JP;
Tokai Rubber Industries, Ltd., Komaki, JP;
Abstract
A liquid-filled cylinder-shaped hydraulic vibration isolator includes a main axial fitting, an intermediate cylinder fitting, a rubber elastic body, an outer cylinder fitting, and a sealing rubber. The intermediate cylinder fitting includes a pair of ring members and a bridging member bridging the ring members. The respective ring members include a drawn major-diameter portion, positioned on an outside in the axial direction and subjected to drawing, and a minor-diameter portion disposed inside the drawn major-diameter portion by way of a stepped portion, formed as a smaller diameter than that of the drawn major-diameter portion and having a plurality of slits formed along the peripheral direction. The sealing rubber is fastened to outer peripheral surfaces of the minor-diameter portion and the bridging member so as to enclose window portions, formed in the intermediate cylinder fitting. Thus, as one of the advantages, the durability of the rubber elastic body can be improved.