| 摘要 |
PURPOSE: A frame for advertisement having openable cover is provided, which makes operation of a cover plate smoothly operated by a spring. CONSTITUTION: A frame for advertisement having openable cover is constituted as follows. A hinge shaft(20) is formed on the outside wall part(14) of the frame member(12) comprising the main frame(10). Spring end inlet holes(28A,30A) are formed on the hinge pipe of the cover plate and inner wall area(16) of the frame member. The spring element(26) is united so that each spring support(42,40) can be inserted into the spring end inlet hole of the hinge pipe and spring end inlet hole of the inner wall area. |
