Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
STRIKING TOOL
Document Type and Number:
WIPO Patent Application WO/2016/002539
Kind Code:
A1
Abstract:
In order to increase screw fastening speed and improve work efficiency, three first claws (30e) of a hammer (30) and three second claws (18d) of an anvil (18) are provided, thereby making it possible to set a striking interval to "a 120-degree interval" that is shorter than in the prior art. The working efficiency can be improved by sufficiently accelerating a rotor (12b) and a spindle (26) by setting total inertia obtained by adding up the inertia of the rotor (12b) and the inertia of the spindle (26) to a low value less than or equal to "300 kg·mm2" in terms of a rotary shaft of the spindle (26).

More Like This:
JPH1190852METHOD AND DEVICE FOR CONTROLLING FASTENING TORQUE OF IMPACT TYPE FASTENING TOOL
JP3109631Rotating connection collet of air electric impact rotary tool
Inventors:
NISHIKAWA TOMOMASA (JP)
HARADA TETSUHIRO (JP)
TAKANO NOBUHIRO (JP)
MATSUNO SATORU (JP)
Application Number:
PCT/JP2015/067722
Publication Date:
January 07, 2016
Filing Date:
June 19, 2015
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HITACHI KOKI KK (JP)
International Classes:
B25B21/02
Foreign References:
JPH09272066A1997-10-21
JPH01246080A1989-10-02
JPS6374576A1988-04-05
Other References:
"BLACK & DECKER 18V Multitool EAI800", 23 April 2013 (2013-04-23), XP055386361, Retrieved from the Internet
See also references of EP 3162505A4
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: TIRE

Next Patent: DRIVING MACHINE