Patent ID: 8104493
Filing Date: 2012-01-31
Classification: A45B

Abstract:
1. A two-stage collapsing device comprising: a base having a passage defined therein, a first slot and a second slot defined in an inner periphery of the passage; a first locking member movably received in the first slot and including a first latch protruding from a mediate portion thereof, and a button movably connected to the base and including a second locking member, a U-shaped member and a trigger, the second locking member including a second latch protruding from a mediate portion thereof, the second locking member fixed to an inside of the button and movably received in the second slot, the U-shaped member pivotably connected to the inside of the button and two legs of the U-shaped member located corresponding to two distal ends of the first locking member, the trigger pivotably connected to the inside of the button.