| 摘要 |
<p>PURPOSE:To provide an apparent opening relatively movable with respect to a cover and to use a guide plate as a part of an external case by rotatably providing an auxiliary guide coupled with a pair of mutually facing guide plates separated through a coupling part having a pivot in an intermediate position in an inner space of the opening of the cover. CONSTITUTION:An auxiliary guide 7 coupled with a pair of mutually facing guide plates 9 and 10 separated through a coupling part 8 having a pivot in an intermediate position is rotatably provided in the inner space of an opening 6 of a cover 2. In this case, it is desirable that an outer case 4a and/or 2a of a body 4 and/or the cover 2 is used partly as the plates 9, 10 and that position restricting parts 11, 12 for restricting positions so that the plates 9, 10 are parts of the case 4a and/or 2a. The guide 7 is rotationally displaceable at the pivot S of the intermediate position of the part 8 as a center. As a result, the rotational angle of the apparent opening 6a can be reduced as compared with the rotational angle of the opening 6 on opening and closing of the cover 2.</p> |
