Patent ID: 6572000
Filing Date: 2003-06-03
Classification: B25C

Abstract:
A hoseless driving tool comprising:an output section which is configured by a cylinder, a piston that is movably disposed in said cylinder, and a driver blade that is attached to said piston, said piston and driver blade being driven by compressed air that is supplied into said cylinder; a handle section which is disposed substantially perpendicularly to said output section; an air tank which stores compressed air at a pressure that is higher than a pressure at which said output section is operable; and a pressure reducing valve which supplies the compressed air in said air tank to said output section while reducing the pressure of the compressed air to the pressure at which said output section is operable; wherein said air tank is disposed behind said handle section, so as to be provided at an end of said handle section which is opposite to an end of said handle section which faces said output section, whereby a center of gravity of a whole of said tool is positioned in a vicinity of a gripping portion of said handle section, wherein said air tank is a second accumulator chamber, and wherein said pressure reducing valve supplies the compressed air from said second accumulator chamber to a first accumulator chamber so that the compressed air in the second accumulator chamber is introduced into the first accumulator chamber while reducing the pressure of the compressed air.