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:
Nov. 15, 2011
Filed:
Mar. 17, 2009
Tomoo Suko, Osaka, JP;
Katsuya Enomoto, Osaka, JP;
Tomoo Suko, Osaka, JP;
Katsuya Enomoto, Osaka, JP;
Tsubakimoto Chain Co., Osaka, JP;
Abstract
A chain has a resin member integrally molded on an inner circumferential surface of a bushing with a strong joining force between the resin member and an inner circumferential surface of the bushing. The chain has an inner link in which both end portions of a pair of front and rear bushings are press-fitted into bushing holes of a pair of right and left inner plates, and an outer link in which both end portions of a pair of front and rear pins are press-fitted into pin holes of a pair of right and left outer plates. The inner and outer links are alternately connected to each other in a longitudinal direction of the chain. The inner circumferential edge portionsof both end portions of the bushingare chamfered, and the bushing is lined with the resin memberinsert-molded on an inner circumferential surface of the bushingto produce flared ends, and a central portion of the lined bushingbetween the ends thereof becomes thicker.