Patent ID: 7019250

Claim:
A quick change device for mounting an actuator to a resistance welding gun, comprising: a mounting member for the actuator, a plurality of spaced-apart apertures in said mounting member, a plurality of fasteners, each of said fasteners having a shank of a first diameter and a head on one end of the shank of a second diameter larger than the first diameter, the shanks of the fasteners extending through the respective apertures and removably secured to the welding gun and the heads of the fasteners clamping the mounting member to the welding gun, at least one of the apertures being of the keyhole type having a relatively narrow shank-receiving portion of a width greater than the first diameter but less than the second diameter, and having a relatively wide portion of a size large enough to pass the head of the fastener that extends through the said one of the apertures, whereby the actuator may be released from the welding gun without removing all of said plurality of fasteners from said welding gun by loosening at least one of said fasteners that extends through the said one of the apertures and shifting the mounting member relative to the welding gun to align the heads of the plurality of fasteners that extends through the said one of the apertures with the relatively wide portion of the said one of the apertures after removing the remaining fastener or fasteners.