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:
Dec. 29, 2015
Filed:
Feb. 24, 2012
Hisato Shii, Minokamo, JP;
Akira Naito, Kago, JP;
Tatsuya Sukegawa, Komaki, JP;
Kazuhiro Hayashi, Kasugai, JP;
Takashi Ominami, Kasugai, JP;
Hisato Shii, Minokamo, JP;
Akira Naito, Kago, JP;
Tatsuya Sukegawa, Komaki, JP;
Kazuhiro Hayashi, Kasugai, JP;
Takashi Ominami, Kasugai, JP;
KAYABA INDUSTRY CO., LTD., Tokyo, JP;
CHITA KOGYO CO., LTD., Aichi, JP;
Abstract
A cylinder unit includes a cylinder, a rod guide, a piston, a piston rod, and a rebound member provided between the rod guide and the piston to absorb impact generated when the cylinder unit is fully extended. The rebound member includes a coil spring arranged around an outer circumference of the piston rod and a pair of upper and lower holder members fitted to the fixing portions formed in both ends of the coil spring so that the piston rod is inserted into a shaft center hole. The center portion formed between the fixing portions of the coil spring has a diameter smaller than that of the fixing portion.