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. 31, 2002
Filed:
Nov. 16, 2001
Masashi Konomoto, Tokyo, JP;
THK Co., Ltd., Tokyo, JP;
Abstract
There is provided a damping device for making large a damping force per unit length in an axial direction thereof. The damping device is provided with a motion conversion section for converting a relative linear motion between the two object portions to a rotational motion of a rotation member and a damping section operatively connected to the motion conversion section and adapted to resist the rotational motion of the rotation member. The damping section is formed with the rotation member an inner peripheral side sealing layer disposed on an inner peripheral side of the rotation member and an outer peripheral side sealing layer disposed on an outer peripheral side of the rotation member. The inner and outer peripheral side sealing structure are sealed with viscous medium. Since the inner peripheral side sealing layer and the outer peripheral side sealing layer resist against the rotational motion of the rotation member the damping force per unit length of the rotation member in its axial direction can be made large.