Patent ID: 8091751
Filing Date: 2012-01-10
Classification: B25C

Abstract:
1. A gas internal combustion type nailing machine, comprising: a striking cylinder for slidably accommodating a striking piston therein; a combustion chamber formed in an upper side of the striking cylinder and capable of being opened and closed; a separation member which separates a lower portion of the combustion chamber from an internal space in an upper portion of the striking cylinder; a compressor for supercharging compressed air into the combustion chamber; a fuel supply device for supplying a fuel gas into the combustion chamber; and a safety device for preventing the nailing machine from being ignited and driven when the supercharge pressure of the compressed air exceeds a set pressure value, wherein the safety device comprises a valve in the separation member configured to release the supercharge pressure from the combustion chamber into the striking cylinder when the supercharge pressure exceeds the set pressure value.