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:
Feb. 21, 2006
Filed:
Oct. 29, 2004
Zhou Wenhua, Zhejiang, CN;
Zhou Wenhua, Zhejiang, CN;
Zhe Jiang San Ou Machinery Co.LTD, Zhejiang, CN;
Abstract
A manually tightened drill chuck includes a drill body, a nut, a front sleeve and a rear sleeve. The front sleeve is provided on the front end of the drill body with the nut being provided in the middle. A decorative sleeve is mounted on the front end of the drill body with an external peripheral surface of the nut being housed in an inner sleeve by shrink fit. At least one key groove is located in the inner wall of the front sleeve. A key cooperates with the key groove. At least one locating member is provided in the lower end of the key that includes a hole. The front sleeve further defines at least one protrusion that corresponds to the position of the hole for snapping into the hole. Accordingly, the stability of the front sleeve and the rear sleeve without radial vibration is achieved.