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. 06, 2005
Filed:
Nov. 20, 2003
Mitsuyoshi Shibata, Nishio, JP;
Masanori Furusawa, Kariya, JP;
Yasuhiro Kakiuchi, Anjo, JP;
Makita Corporation, Anjo, JP;
Abstract
A hammer drill () includes a lock plate () forward of a boss sleeve () and a swash bearing () which cooperates with the boss sleeve to convert the rotation of an intermediate shaft () on which the boss sleeve is mounted. The lock plate is mounted on the boss sleeve and selectively engages claws () of the boss sleeve () in a manner that permits its integral rotation with and axial slide with respect to the boss sleeve. The lock plate is additionally biased in the forward direction by a coil spring () so that when a clutch () is shifted forward in a drill mode, the lock plate also moves forward into engagement with a stopper () secured to an inner housing (), preventing inadvertent rotation of the boss sleeve.