| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that, at the time of opening one side of a door, an opening resistance is apt to be generated by the friction between the door and the portion of a main body with which the door supporting portion, etc., of the door comes into contact when the door moves and, accordingly, the load applied to the door is large as compared with an ordinary hinge a door, because the door moves to the opened side by a prescribed distance. SOLUTION: Cam mechanisms which lock and unlock the door 2 to the main body 1 are respectively provided on both sides of the door 2. The mechanism stay at first locking positions when the door 2 is in a closed state and, when one side of the door 2 is opened, the door 2 moves by a prescribed distance to the opened side and the mechanisms are positioned to second locking positions and rotatably locked at the position. The cam mechanisms on both sides of the door 2 are respectively attached to reinforcing plates 23, and the cam mechanism attached to the portion of the door 2 which comes to the second locking position or its vicinity has reinforced positioning projections 22a and 22b at spots on the side of one reinforcing plate 23. In addition, the reinforcing plate 23 has recesses or holes 23a and 23b formed correspondingly to the projections 22a and 22b.
|
