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:
Apr. 07, 2015
Filed:
Mar. 15, 2013
Tsubakimoto Chain Co., Osaka, JP;
Shuuji Hamaguchi, Osaka, JP;
Takayuki Morimoto, Osaka, JP;
Tsubakimoto Chain Co., Osaka, JP;
Abstract
In a silent chain, rocker joint pins are composed of first and second rocker pins having mutually engaging front rolling surfaces. Each first rocker pin is fixed to pin fixing link plates of a first link, and extends through holes in other link plates of the first link. Each first pin has a back surface engaged with portions of the pin holes in the other link plates of the first link on the inner side of a pitch line, but is spaced by a gap from portions of the same pin holes on the outer side of the pitch line. The second rocker pin moves with link plates of a second link which forms a link pair with the first link, and elastically deforms the first rocker pin when the second link is flexed relative to the first link, thereby resisting flexion of the link pair and reducing impact noise.