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:
Jun. 24, 2014
Filed:
Mar. 12, 2012
Eiko Miyasato, Tsukubamirai, JP;
Masayuki Ishikawa, Tsukubamirai, JP;
Tsuyoshi Mita, Tsukubamirai, JP;
Akira Hiroki, Tsukubamirai, JP;
Youji Takakuwa, Tsukubamirai, JP;
Kouichi Matsuzaki, Tsukubamirai, JP;
Toshio Minakuchi, Tsukubamirai, JP;
Mariko Kessoku, Tsukubamirai, JP;
Kodai Yoshinaga, Tsukubamirai, JP;
Eiko Miyasato, Tsukubamirai, JP;
Masayuki Ishikawa, Tsukubamirai, JP;
Tsuyoshi Mita, Tsukubamirai, JP;
Akira Hiroki, Tsukubamirai, JP;
Youji Takakuwa, Tsukubamirai, JP;
Kouichi Matsuzaki, Tsukubamirai, JP;
Toshio Minakuchi, Tsukubamirai, JP;
Mariko Kessoku, Tsukubamirai, JP;
Kodai Yoshinaga, Tsukubamirai, JP;
SMC Corporation, Tokyo, JP;
Abstract
Provided is a shock absorber enabling stable stop by damping at a terminal of a stroke and covering demanded impact-absorbing models. The shock absorber has a piston chamber, a start part for piston movement, a decelerating part, and an end part for stopping the piston. The start part forms a curve to provide a diameter larger than a virtual tapered surface formed within a stroke range of the piston and to be outward to a central axis of the piston chamber. In the decelerating part, a variation of diameter reduction is increased with the result that the diameter becomes smaller than the tapered surface, and a curve is formed so the change in variation of diameter reduction reaches the maximum variation point and turns negative. In the end part, the variation of diameter reduction is decreased with the result that a curve which enables piston stopping by damping is formed.