GAS COMBUSTION TYPE HAMMERING TOOL

Title:

GAS COMBUSTION TYPE HAMMERING TOOL

Document Type and Number:

WIPO Patent Application WO/2007/018178

Kind Code:

A1

Abstract:

A gas combustion type hammering tool in which when a movable sleeve (11) on a cylinder is moved upward, a closed combustion chamber (5) is formed, and a fuel mixture is explosively burned in the combustion chamber (5) to drive out a fastener. A lock cylinder (22) is disposed on the lower part of the movable sleeve (11). A lock piston (23) is vertically movably stored in the lock cylinder (22). The upper end of the lock piston (23) is engageable with a holding member (12) interlocking with the movable sleeve (11). The lower part of the lock cylinder is allowed to communicate with the combustion chamber through a gas pipeline (24). A check valve (25) is installed in the gas pipeline (24). A solenoid valve (27) is fitted to the lock cylinder (22). After a specified time is passed after the combustion is completed in the combustion chamber, the solenoid valve (27) is opened.

Inventors:

TAMURA JYUNICHI
MURAYAMA KATSUHIKO

Application Number:

PCT/JP2006/315598

Publication Date:

February 15, 2007

Filing Date:

August 07, 2006

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MAX CO LTD (JP)
TAMURA JYUNICHI
MURAYAMA KATSUHIKO

International Classes:

B25C1/08

Foreign References:

JP2004074296A	2004-03-11
JP2004074297A	2004-03-11
JPS59205273A	1984-11-20
JPH11216684A	1999-08-10

Other References: