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:
Dec. 01, 2015
Filed:
Aug. 06, 2012
Seiji Ito, Tokyo, JP;
Naoya Masuda, Tokyo, JP;
Seiji Ito, Tokyo, JP;
Naoya Masuda, Tokyo, JP;
TOHNICHI MFG. CO., LTD., Tokyo, JP;
Abstract
It is to provide a torque driver capable of bringing a marker into direct contact with a surface of a fastener member such as a screw to perform marking. A torque driveris configured such that a caseis rotated relative to a main shaftwhen a tightening force applied to the caseis transmitted to the main shaftthrough a torque limiter sectionand a tightening torque on a screwengaged with a bitattached to a couplerfixed at a tip portion of the main shaftreaches a torque value set in the torque limiter section. The torque driverincludes: a markerextending from an inside of the couplerto a tip portion of the bitalong a side surface of the bit; and a marker activating sectionthat allows the markerto move forward by utilizing rotation of the caserelative to the main shaftso that a marker tip portionis brought into contact with the screwto perform marking.