Title:
GAS COMBUSTION DRIVING TOOL
Document Type and Number:
WIPO Patent Application WO/2008/023589
Kind Code:
A1
Abstract:
A hammering piston (4) is vertically slidably installed in a hammering cylinder
(3) disposed in a tool body (1). A movable sleeve (10) provided at the upper part
of the hammering cylinder (3) is moved up and down so as to engage and be separated
from both the hammering cylinder (3) and a cylinder head (8) above the hammering
cylinder (3), and this opens and closes a combustion chamber. Mixed gas produced
by stirring and mixing a flammable gas and air by a rotary fan (16) in the combustion
chamber is ignited by an ignition plug (15) disposed in the cylinder head (8) to
explosively combust it. The hammering piston (4) is impulsively driven by the
high-pressure combustion gas, and a nail is expelled by a driver (5) joined to
the lower surface of the hammering piston (4). A staying part (25), in which residues
remaining after the combustion of the mixed gas stays, is formed between the exposed
base and forward end of the center electrode of the ignition plug (15) exposed
to the outside facing downward.
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Inventors:
UCHIYAMA, Toru (())
内山 達 (())
内山 達 (())
Application Number:
JP2007/065807
Publication Date:
February 28, 2008
Filing Date:
August 13, 2007
Export Citation:
Assignee:
MAX CO., LTD. (6-6 Nihonbashi hakozaki-cho, Chuo-ku Tokyo, 02, 1038502, JP)
マックス株式会社 (〒02 東京都中央区日本橋箱崎町６番６号 Tokyo, 1038502, JP)
UCHIYAMA, Toru (())
マックス株式会社 (〒02 東京都中央区日本橋箱崎町６番６号 Tokyo, 1038502, JP)
UCHIYAMA, Toru (())
International Classes:
B25C1/08; B25C1/00
Attorney, Agent or Firm:
OGURI, Shohei et al. (Eikoh Patent Office, 7-13 Nishi-Shimbashi 1-chom, Minato-ku Tokyo 03, 1050003, JP)
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