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. 12, 2012
Filed:
Oct. 30, 2006
Masahiro Satou, Shizuoka, JP;
Seiji Sawai, Shizuoka, JP;
Yutaka Yamazaki, Shizuoka, JP;
Katsuhiro Kondou, Shizuoka, JP;
Masahiro Satou, Shizuoka, JP;
Seiji Sawai, Shizuoka, JP;
Yutaka Yamazaki, Shizuoka, JP;
Katsuhiro Kondou, Shizuoka, JP;
Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka, JP;
Abstract
A damper includes a cylinder tube having a first end connected to one portion of a member of an object for damping, and a fixing rod guide arranged to close a second end of the cylinder tube; a movable rod guide fitted on the first end of the cylinder tube; a main piston rod extending from the piston side, the piston fitted in the cylinder tube and passing through the fixing rod guide; a sub-piston rod extending on the piston side and passing through the movable rod guide; and a spring normally biasing the movable rod guide toward the piston. A damping force generation oil passage is arranged to connect first and second oil chambers in a cylinder tube defined by the piston. The number of parts of a through-rod type damper is reduced to simplify a construction thereof and to make the damper compact.