Patent ID: 6968716
Filing Date: 2005-11-29
Classification: E05B,Y10T

Abstract:
1. A connection lock executing locking operation without keys for coupling to a first article which has an insertion hole, comprising: an actuation mechanism including a movable leg and a fixed leg that are movable close to each other to insert into the insertion hole and movable away from each other to latch the first article; a case for housing the actuation mechanism having a housing chamber which has a round opening, a first wedge trough and a second wedge trough formed on a wall around the round opening, and a one-way hump bridging the first and the second wedge troughs, the one-way hump having a chamfered surface; an elastic element located in the case for providing an elastic action force on the movable leg to be close to the fixed leg at a unlocking position in normal conditions; a rotary cylinder located in the round opening and extended outside the case to form a grasp section having at least one bucking member on the periphery thereof wedging in the first wedge trough such that when the rotary cylinder is subject to a force and turns the bucking member is retracted along the chamfered surface to pass over the one-way hump and to be wedged in the second wedge trough; and a nudging member located on the rotary cylinder and driven by the rotary cylinder to move the movable leg away from the fixed leg at a locking position when the bucking member is moved from the first wedge trough to the second wedge trough.