Title:
OPEN/CLOSE MECHANISM OF COMBUSTION CHAMBER OF GAS COMBUSTION RAMMER
Document Type and Number:
WIPO Patent Application WO/2008/029687
Kind Code:
A1
Abstract:
A hammering cylinder (5) arranged in a tool body (1) is provided with a hammering
piston (6) slidably in the vertical direction. A combustion chamber (10) is provided
above the hammering cylinder (5). Mixture gas of flammable gas and air is ignited
by an ignition plug (13) and burned explosively in the combustion chamber (10),
and the hammering piston (6) is driven impulsively by making high pressure gas
act thereon and then a fastener is driven from a nose portion (4) provided at a lower
portion of a tool body (1) by means of a driver (7) coupled to the lower surface side
of the hammering piston (6). The combustion chamber (10) is disposed fixedly
at an upper portion of the hammering cylinder (5). Supply and exhaust openings
(16a, 16b) are formed in the combustion chamber (10). A valve for opening/closing
the openings (16a, 16b) is operated electrically.
Inventors:
TANAKA, Hiroshi (())
田中 宏司 (())
TAKEMURA, Hajime (())
竹村 元 (())
田中 宏司 (())
TAKEMURA, Hajime (())
竹村 元 (())
Application Number:
JP2007/066762
Publication Date:
March 13, 2008
Filing Date:
August 29, 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)
TANAKA, Hiroshi (())
田中 宏司 (())
TAKEMURA, Hajime (())
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)
TANAKA, Hiroshi (())
田中 宏司 (())
TAKEMURA, Hajime (())
International Classes:
B25C1/08; B25C1/00
Attorney, Agent or Firm:
OGURI, Shohei et al. (Eikoh Patent Office, 7-13 Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 1050003, JP)
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