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:
Jan. 03, 2012
Filed:
Feb. 22, 2008
Yasutoshi Shinma, Anjo, JP;
Keiji Nakashima, Anjo, JP;
Hajime Takeuchi, Anjo, JP;
Makita Corporation, Anjo, JP;
Abstract
A hammer drill having a clutch pin and a clutch mechanism is provided. By switching the clutch mechanism, a selection can be made between a hammer drill mode and a hammer mode. The clutch pin is configured to be slidable to a sliding position where the clutch pin runs through the reduction shaft so as to be capable of protruding beyond the reduction shaft, and at the sliding position, the clutch pin engages with an engagement hole provided on the tool holder side so that a rotation of the tool holder can be locked, whereby in the hammer mode, a selection can be further made between a neutral state where the clutch pin does not engage with the engagement hole and a rotation locked state where the clutch pin engages with the engagement hole.