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.

Date of Patent:
Feb. 08, 2011

Filed:

Nov. 22, 2005
Applicants:

Kunichi Kobatake, Tokyo, JP;

Kiyoshi Shimogai, Tokyo, JP;

Hisato Tokunaga, Tokyo, JP;

Hiroshi Takei, Tokyo, JP;

Inventors:

Kunichi Kobatake, Tokyo, JP;

Kiyoshi Shimogai, Tokyo, JP;

Hisato Tokunaga, Tokyo, JP;

Hiroshi Takei, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23Q 11/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

A cutting tool holder unit is composed of a cutting tool holder adapted to detachably mount a cutting tool thereon, and a front cover of a flange shape slidably fitted into a side of the cutting took holder mounted on a multi-spindle head. A groove formed on the inner circumferential surface of the front cover is slidably fitted into a groove formed on the cutting tool holder to form a cutting oil circulating channel and a cutting oil injection port is opened at an upstream position of a cutting tool mounting section relative to the direction of rotation of the cutting tool holder.


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