| 摘要 |
PURPOSE: To completely close an opening side of a main body with a cover body and to reduce the size of an insertion space by introducing automatically a lock piece of the cover body in a notch groove opened in other side wall of the main body, and interlocking a lock claw with a holding claw on a frame wall side. CONSTITUTION: A wide lock claw 13 of a C-shaped cover body 2 is only inserted in an insertion space 7 partitioned by a U-shaped frame wall 6 while rotating the cover body to the main body 1 side through a thin hinge section 3. A lock piece 12 of the cover body 2 is automatically introduced in a notch 11 on the main body 1 side by the guidance thereof, and the lock claw 13 is automatically interlocked with a holding claw 10 by deflection outward an elastic piece 8. By the constitution, the opening side of the main body 1 can be completely closed with the cover body 2. Since size of the insertion space 7 is sufficient by an interlocking margin between the lock claw 13 and holding claw 10, these is no space restriction. |
