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:
May. 08, 2012
Filed:
Jan. 28, 2008
Masanori Furusawa, Aichi, JP;
Yoshihiro Kasuya, Aichi, JP;
Masanori Furusawa, Aichi, JP;
Yoshihiro Kasuya, Aichi, JP;
Makita Corporation, Anjo-Shi, JP;
Abstract
Connection of a bit with two balls is enabled while high operability of attachment and detachment of the bit is maintained. A pressing ringis held at the advance position together with an operation sleeveby a guide washerforced by a coil spring. When the rear end of the bit is inserted into a tool holder, the ballsthat are rolled rearward by the contact of the rear end of the bit are pushed in between the pressing ringand the guide washerin order, and the ballscan be retracted from the tool holderin the state where the pressing ringis held at the advance position by the tilt of the guide washer