Trigger locking pin mechanism for mig gun

Details Trigger locking pin mechanism for mig gun Trigger locking pin mechanism for mig gun

B - Operations, Transporting

23

K

B23K 9/10 (2006.01) B23K 9/29 (2006.01) H01H 3/20 (2006.01) H01H 9/06 (2006.01)

Patent

CA 2276864

A mig welding gun has a handle with a longitudinal centerline and a hole with an axis transverse to the centerline. A trigger is received in the handle for rotation about an axis perpendicular to and offset from the hole axis. A spring biases the trigger to a released position whereat the gun is off. Applying a squeeze force to the trigger rotates it to a depressed position whereat the gun is on. A pin is slidable in the trigger to engage the handle hole when the trigger is in the depressed position. Removing the squeeze force while the pin engages the handle hole locks the trigger in the depressed position. Momentarily reapplying the squeeze force to the trigger causes the pin to disengage from the handle hole and enable the trigger to return to the released position. In a modified embodiment, the pin is engageable with a chap inside the hole.

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