Patent ID: 8424927

Claim:
A coupling structure for coupling first and second casing parts in order to form a casing, the first casing part being formed with a detachment hole, the coupling structure comprising: at least one resilient engaging hook projecting from the first casing part; a coupling member disposed between the first and second casing parts for coupling the latter together, said coupling member being formed with at least one first engaging groove and at least one second engaging groove, said resilient engaging hook of the first casing part engaging a corresponding said first engaging groove in a right direction, said coupling member including a pushing element projecting toward the detachment hole in the first casing part; and at least one rigid engaging hook projecting from the second casing part and engaging a corresponding said second engaging groove in a left direction opposite to said right direction; wherein, manually leftwise movement of said pushing element of said coupling member in said left direction along a detachment path results in simultaneous bending of said resilient engaging hook in said left direction and disengagement of said rigid engaging hook from said second engaging groove, thereby permitting removal of the second casing part from the first casing part.