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. 04, 2022
Filed:
Mar. 22, 2019
Applicant:
Piolax, Inc., Kanagawa, JP;
Inventor:
Kouichi Kato, Kanagawa, JP;
Assignee:
PIOLAX, INC., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 9/02 (2006.01); E05F 3/12 (2006.01); F16F 9/32 (2006.01); F16F 9/516 (2006.01);
U.S. Cl.
CPC ...
E05F 3/12 (2013.01); F16F 9/0218 (2013.01); F16F 9/3214 (2013.01); F16F 9/3221 (2013.01); F16F 9/516 (2013.01); E05Y 2201/212 (2013.01); E05Y 2201/234 (2013.01); E05Y 2900/538 (2013.01); F16F 2222/126 (2013.01); F16F 2224/025 (2013.01); F16F 2232/08 (2013.01); F16F 2234/02 (2013.01);
Abstract
A damper includes a cylinder, a rod including a first engaging portion at a tip end thereof, and a piston formed of an elastic resin material. The piston includes a convex portion provided so as to protrude at a base end portion located on a rod base end side and always in pressure contact with an inner circumference of the cylinder. During damper braking, the first engaging portion of the rod abuts against the other end portion of the piston, and an axial compression force acts on the piston between the first engaging portion and the convex portion in pressure contact with the inner circumference of the cylinder.