| 摘要 |
A front cover unit (110) consists of three front covers. Each front cover turns from state (a) to state (c) by a link mechanism or turns reversely from state (c) to state (a). The front cover unit (110) is fixed to the housing by means of two hinges. Under the state (a), a space of "turning radius B" is required around the rotating shaft (40) of the hinge when the front cover unit (110) is opened, but a space of "radius R" around the rotating shaft of the hinge is sufficient when the front cover unit (110) is opened under the state (c). Consequently, even when there is no space in front of the housing (controller), the door of the controller can be opened by turning respective front covers by means of the link mechanism. |
