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Title:
DRIVE-IN TOOL OF FASTENING ELEMENT
Document Type and Number:
Japanese Patent JP2008132590
Kind Code:
A
Abstract:

To avoid metallic fatigue by preventing a driving spring element from being biassed in nonuse, in a hand-held drive-in tool for driving a fastening element in a foundation structure by energy by a driving spring.

The hand-held drive-in tool for driving the fastening element 60 is provided with a driving plunger 13 for driving by at least one driving spring element, a bias imparting device 70 for the driving spring element and the driving plunger 13, a locking device 50 capable of locking the driving plunger 13 and the driving spring element 31 on a checking position 54 of the locking device 50 being a bias position 33, and an operation switch 19 capable of transferring the locking device 50 to a releasing position 55. At least one other switch means is arranged for the locking device 50. The locking device 50 can independently transferred to the releasing position 55 from the operation switch 19.


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Inventors:
SCHIESTL ULRICH
SPASOV ROBERT
BLESSING MATTHIAS
GSCHWEND HANS
Application Number:
JP2007303576A
Publication Date:
June 12, 2008
Filing Date:
November 22, 2007
Export Citation:
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Assignee:
HILTI AG
International Classes:
B25C1/06
Domestic Patent References:
JPH09295283A1997-11-18
JPH09507172A1997-07-22
JPH0929663A1997-02-04
JPS5969883U1984-05-11
JP2005529763A2005-10-06
JPH0739562Y21995-09-13
JPS5934981U1984-03-05
Attorney, Agent or Firm:
Kenji Sugimura
Kosaku Sugimura
Kiyoshi Kuruma
Shiro Fujitani
Tatsuya Sawada