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Title:
GAS BOMB HOLE-OPENING DEVICE
Document Type and Number:
Japanese Patent JP2014151663
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a gas bomb hole-opening device which gunpowder administrative regulations are not applied to because of usage of an agent constituted by non-gunpowder type composition, and expands an inflation unit of a life jacket etc. quickly in a stable time.SOLUTION: A piston 30 comprises a pin part which comprises a gas ejection passage and opens a hole in a sealing plate 7 and an O-ring fitting part to which an O-ring 38 adhered to the inner wall of a piston guide hole 25 is fitted. Before operation of a gas generating unit 40, the pin part is positioned in front of a sheet 29 and the O-ring fitting part is positioned at gas generating unit side of a gas relief hole 26 in the piston. After operation of the gas generating unit, the piston is pushed out to the gas bomb 5 side by gas pressure due to combustion of a gas-generating agent, the pin part stabs the sheet and the sealing plate to reach into the gas bomb, gas is ejected from a gas ejecting hole 24 through the gas ejecting passage to expand an inflation unit, and the O-ring fitting part is moved to the gas bomb side of the gas relief hole to discharge the remained pressure through the gas relief hole.

Inventors:
HAYASHI TOMOHIRO
MORI HIROYUKI
Application Number:
JP2013020304A
Publication Date:
August 25, 2014
Filing Date:
February 05, 2013
Export Citation:
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Assignee:
NIPPON KOKI CO LTD
International Classes:
B63C9/19; B63B7/08; B63B22/22
Domestic Patent References:
JPS5814360B21983-03-18
JPS5938193A1984-03-01
JPH03121990A1991-05-23
JPS3811565Y1
JPS432264B1
Foreign References:
US5076468A1991-12-31
US5058635A1991-10-22
Attorney, Agent or Firm:
Furuya History Wang
Woods Bright person