Patent ID: 8393651
Filing Date: 2013-03-12
Classification: E05B,E05C,Y10T

Abstract:
1. A safety device used together with a push-push latch device which latches a movable body to a main body at a fixed position of said main body by a push operation against an urging force of urging means and which allows said latching to be released by a next push operation, and comprising: a circulation cam groove adapted to be provided in said movable body and having a reciprocation groove portion, a latching guide groove portion, a returning guide groove portion, and a latch groove portion, a responding member adapted to be rotationally supported in the main body and having a pin on one side thereof for tracing said circulation cam groove, and a balancer on the other side thereof, and a first urging member having one end adapted to be attached to the main body and the other end attached to the responding member to urge the responding member in one direction, wherein when said responding member receives a load, said responding member turns against an urging force of said first urging member, said pin irreversibly moves from said reciprocation groove portion of said circulation cam groove to said latch groove portion through said latching guide groove portion so that even if the latching of said latch device is released due to the load, said movable body is retained in said fixed position, and when the pin retained in said latch groove portion receives the push operation, the pin moves from said latch groove portion to said reciprocation groove portion through said returning guide groove portion, thereby releasing said movable body from said fixed position.