| 摘要 |
PROBLEM TO BE SOLVED: To provide an inverted latch lock reducing a collision noise of a latch generated when the latch enters into a strike when opening/closing a door. SOLUTION: The inverted latch lock 1 for the door is equipped with: the latch 4 which is guided and supported so that a locking box component 3 such as a latch guard 5 inverses and slidably advances/retreats its both ends; and a latch spring 7 which is provided to the latch 4, and causes thrust and inverse forces for advancing and sliding the latch 4 toward the strike. The inverted latch lock 1 has a moving speed deceleration means for reducing a moving speed of the latch 4 in the latch 4 or the locking box components 3, 5. The moving speed deceleration means provided in the latch 4 is constituted of: a spring receiving member 6 which is received in the latch 4 so as to allow its relative displacement, and supports one end of the latch spring 7; and frictional resistance causing mechanisms 5, 6, 8, 9 which are provided in the spring receiving member 6, and constantly apply a biasing force to the locking box components 3, 5, thereby causing the frictional resistance with the locking box components. COPYRIGHT: (C)2011,JPO&INPIT |
