Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
IMPACT TOOL
Document Type and Number:
WIPO Patent Application WO/2016/121458
Kind Code:
A1
Abstract:
An impact tool is provided in which an on-lock function is achieved using a simple mechanism, and with which switching between activation and deactivation of the on-lock function can be performed in a few operation steps. A hammer drill (1) is provided with at least two operating modes including a hammer mode in which impact force is transmitted to a tip tool, and rotary force is not transmitted. The hammer drill (1) is provided with: a motor (30), i.e. a motive power source; a trigger lever (70) and an on-lock button (80) which are operated by a worker; a sensor (62) for detecting whether the selected operating mode is the hammer mode; and a controller for controlling the motor (30) on the basis of the operation of the trigger lever (70) and the on-lock button (80). If the on-lock button (80) is operated when the hammer mode is selected, the controller implements on-lock control in which the motor (30) is maintained in an operating state even if the trigger lever (70) is not operated.

Inventors:
ABE SATOSHI (JP)
OOKUBO TAKAHIRO (JP)
HASHIMOTO HIDEYUKI (JP)
Application Number:
PCT/JP2016/050498
Publication Date:
August 04, 2016
Filing Date:
January 08, 2016
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HITACHI KOKI KK (JP)
International Classes:
B25D16/00
Foreign References:
JP2001062756A2001-03-13
US20080017396A12008-01-24
JP2004330379A2004-11-25
JP2010221328A2010-10-07
JP2008272880A2008-11-13
Other References:
See also references of EP 3251800A4
Download PDF: