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. 06, 2005
Filed:
Mar. 08, 2004
Tsutomu Yoshimoto, Tokyo, JP;
Tsutomu Yoshimoto, Tokyo, JP;
Kayaba Industry Co., Ltd., Tokyo, JP;
Abstract
This invention provides a front fork that can be efficiently be filled with oil when it is manufactured. To achieve this object, the front fork comprising: an outer tube (); an inner tube () inserted expansibly and contractibly into the outer tube (); a double-rod damper () disposed inside the outer tube () and the inner tube (), the double-rod damper () including an upper chamber () and a lower chamber () defined therein into which that oil is contained; and a fork-inside oil chamber () defined by the outer tube (), the inner tube (), and the double-rod damper (), into which oil and air are contained, the front fork comprising: a check valve () disposed in a lower portion () of the double-rod damper (), the check valve () allowing only one-way flow of oil from the fork-inside oil chamber () to the lower chamber () of the double-rod damper (); and an air vent passage () of a small sectional area disposed in an upper portion of the double-rod damper (), the air vent passage () communicating the upper chamber () of the double-rod damper () with the fork-inside oil chamber ().