SAFETY DEVICE OF AIR IMPACT SCREWDRIVER

A nose (5) of an air impact driver (1) is mounted with a slidable contact nose (12) and by the contact nose, a contact valve (23) upward therefrom is operated to switch. An AND circuit operated to pilot an air motor controlling pilot valve (39) and a piston controlling pilot valve (41) is constitute...

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Bibliographic Details
Main Author FUJIYAMA, TAKEO
Format Patent
LanguageEnglish
French
German
Published 22.09.2004
Edition7
Subjects
HAND TOOLS
HAND-HELD NAILING OR STAPLING TOOLS
MANIPULATORS
MANUALLY OPERATED PORTABLE STAPLING TOOLS
PERFORMING OPERATIONS
PORTABLE POWER-DRIVEN TOOLS
TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING
TRANSPORTING
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Summary:A nose (5) of an air impact driver (1) is mounted with a slidable contact nose (12) and by the contact nose, a contact valve (23) upward therefrom is operated to switch. An AND circuit operated to pilot an air motor controlling pilot valve (39) and a piston controlling pilot valve (41) is constituted by a trigger valve (8) operated by a trigger lever (9) and the contact valve (23). When the contact nose is pressed and the trigger lever is pulled, the air motor controlling pilot valve and the piston controlling pilot valve are switched to starting positions to start the air impact driver.
Bibliography:Application Number: EP20020762756