| 摘要 |
<p>A containing portion 22 for a motor is formed at an upper wall of a combustion chamber 11 of a gas combustion type striking machine. A shaft 21 of a motor 20 is coupled with a rotating fan 18 penetrated through a bottom portion of the containing portion 22 to face the combustion chamber 11. A mixture gas provided by being agitated and mixed by the rotating fan 18 is ignited and combusted at inside of the combustion chamber 11. A fastener is struck by a pressure of a combustion gas produced by the combustion. The motor 20 is contained in the containing portion 22 by way of damping members 25, 26 in a shape of a short cylinder respectively having an elasticity at upper and lower portions thereof. The respective damping members 25, 26 are formed with a plural of groove holes 28 prolonged in an up and down direction at constant intervals along a peripheral direction.</p> |
