Lock for a Vehicle Slide-Out Room

A lock for a vehicle having a slide-out room being extendable relative to a side wall of the vehicle, the lock comprising:

• a frame connected to the slide-out room;
• a drive unit supported by the frame;
• a transmission driven by the drive unit, the transmission including:
• a segment gear pivotally supported by the frame, the segment gear having a peripheral edge including a plurality of gear teeth and a foot;
• at least a first follower link having a first end pivotally connected to the segment gear and a second end opposite the first end;
• a lock arm pivotally supported by the frame and pivotally connected to the second end of the first follower link so as to be driven by the drive unit through the transmission, the lock arm being driven so as to pivot from an extended position to a retracted position and vice versa, in the extended position the lock arm engaging the side wall of the vehicle to prevent the slide-out room from extending relative to the side wall of vehicle, and in the retracted position the lock arm disengaging the side wall of the vehicle and engaging the foot of the segment gear;
• and
• a sensor unit being operable to determine if the lock arm is in the retracted position.