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:
Oct. 14, 2014
Filed:
Dec. 01, 2010
Eiko Miyasato, Tsukubamirai, JP;
Akira Hiroki, Tsukubamirai, JP;
Junya Kaneko, Tsukubamirai, JP;
Youji Takakuwa, Tsukubamirai, JP;
Kengo Monden, Tsukubamirai, JP;
Masayuki Ishikawa, Tsukubamirai, JP;
Mariko Kessoku, Tsukubamirai, JP;
Eiko Miyasato, Tsukubamirai, JP;
Akira Hiroki, Tsukubamirai, JP;
Junya Kaneko, Tsukubamirai, JP;
Youji Takakuwa, Tsukubamirai, JP;
Kengo Monden, Tsukubamirai, JP;
Masayuki Ishikawa, Tsukubamirai, JP;
Mariko Kessoku, Tsukubamirai, JP;
SMC Corporation, Tokyo, JP;
Abstract
A hydraulic shock absorber that can reduce outflow amount of oil by maximally removing an oil film attached to an outer periphery of a rod and that can achieve securement of high slidability between the rod and a rod packing and prevention of wear of the rod packing. A rod packing interposed between an outer periphery of a rod and an inner periphery of a rod-side end wall includes a first lip for scrapping off an oil film attached to the outer periphery of the rod, and a ring-shaped grease holding member for supplying holding grease to the outer periphery of the rod. The grease holding member is in contact with the outer periphery of the rod at a position closer to a rod distal end than the first lip.