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:
Jan. 06, 2015
Filed:
May. 14, 2010
Manabu Komine, Sumoto, JP;
Tsuyoshi Komine, Sumoto, JP;
Big Alpha Co., Inc., Sumoto-shi, Hyogo, JP;
Abstract
A chuck device includes: a chuck body having a tapered hole at a front end portion and being fixed to a rotational spindle of the machine tool; a collet capable of being reduced in diameter and inserted into the tapered hole for holding the tool; and a nut that can be screwed to the chuck body for fastening the collet. A non-alignment prevention member is provided for suppressing relative movement by bringing the nut into radial contact with the chuck body even when the spindle of the machine tool is rotated and includes a first nut rear end side tapered surface at a farther rear end side than a screw portion, and a chuck body side tapered surface formed in the chuck body for coming into contact with the first nut rear end side tapered surface when the nut is screwed up.