Title:
DRIVER
Document Type and Number:
WIPO Patent Application WO/2017/115593
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a driver with which, when performing continuous driving, it is possible to avoid blank driving after a prescribed period has elapsed and to perform continuous driving smoothly. Provided is a driver: which has a pressure accumulation chamber (19) for accumulating compressed air, a nose section, cylinder and trigger provided in a housing, and a push lever provided on the nose section; and which supplies compressed air into the cylinder when the trigger and push lever are operated. The driver comprises: a delay valve (26), which does not allow supply of compressed air inside the cylinder if, after the trigger is operated, the push lever is not operated within a prescribed period; and a switching valve (27), which supplies compressed air in the pressure accumulation chamber to the delay valve (26) when the trigger is operated and if the push lever is operated within a prescribed period, releases the compressed air supplied to the delay valve (26) to the outside of the housing.
Inventors:
OOUCHI HARUHIKO (JP)
Application Number:
PCT/JP2016/084953
Publication Date:
July 06, 2017
Filing Date:
November 25, 2016
Export Citation:
Assignee:
HITACHI KOKI KK (JP)
International Classes:
B25C7/00; B25C1/04
Foreign References:
| JPH0270980U | 1990-05-30 | |||
| JPH08276375A | 1996-10-22 | |||
| US20140110452A1 | 2014-04-24 | |||
| US4679719A | 1987-07-14 |
Other References:
See also references of EP 3398722A4
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