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:
Sep. 20, 2016

Filed:

Apr. 23, 2013
Applicant:

Ntn Corporation, Osaka, JP;

Inventors:

Yukihiro Nishio, Shizuoka, JP;

Hiroshi Isobe, Shizuoka, JP;

Yoshitaka Nagano, Shizuoka, JP;

Assignee:

NTN Corporation, Osaka, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B23B 51/00 (2006.01); A61B 17/16 (2006.01); B23B 39/14 (2006.01); B23B 45/00 (2006.01); A61B 17/00 (2006.01);
U.S. Cl.
CPC ...
B23B 51/00 (2013.01); A61B 17/16 (2013.01); A61B 17/1626 (2013.01); B23B 39/14 (2013.01); B23B 45/005 (2013.01); A61B 17/1631 (2013.01); A61B 17/1642 (2013.01); A61B 2017/00212 (2013.01); Y10T 74/20 (2015.01);
Abstract

A remote controlled actuator includes an elongated spindle guide section and a distal end member fitted to a distal end thereof for alteration in attitude. The distal end member rotatably supports a spindle for holding a tool. The spindle guide section includes a rotary shaft for transmitting rotation of a tool rotation drive source to the spindle. An attitude altering member inserted in a guide hole is selectively advanced or retracted by an attitude control drive source. An initial attitude hold control unit controls the attitude control drive source so that an initial attitude holding force necessary to maintain the distal end member in the initial attitude can be applied to the attitude altering member. An attitude alteration control unit controls the attitude control drive source so that the attitude of the distal end member can be altered by a force larger than the initial attitude holding force.


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