PURPOSE: To facilitate mounting and removal work of a cylinder, by constituting a holding means, which holds a bracket supporting the fuel cylinder for a car body to a set position, in such a manner that the holding means can be held to a non-set position when said means is operated to said position.

CONSTITUTION: In a liquefied petroleum gas (LPG) folklift or the like, an LPG cylinder G mounted to the rear part of a car body is supported by a supporter contained with a cylinder supporting bracket 4 supported by a pivot 3 to a base 2 fixed to a side of the car body. This bracket 4 is held to a set position by engaging a stopper pin 5 through a spring 6 to a stopper hole 8 in a stopper member 7 secured to said bracket 4. Here a flange 10 is fixed to an operational side end of the pin 5 while a stopper 20 is fixed to a side of the base 2 on a bracket 24, when the pin 5 is extracted from the hole 8 to turnably hold the bracket 4, said pin 5 can be held to the extracted position by engagement of the flange 10 and the stopper 20.