| 摘要 |
The present invention provides an opening/closing device that is provided with a structure for obstructing contact by a braking engagement section or a locking engagement section to an object or the like, and so it is possible to prevent the perimeter of a guide rail from becoming thicker by means of the structure. In the opening/closing device, a braking engagement section (62b) engages a first engaged section (51) by means of a closure prevention device (60), and the closing operation of an opening/closing body (10) is braked. A space (S) is secured that neighbors the end surface in the width direction of the opening/closing body (10) and is contiguous in the opening/closing direction of the opening/closing body; the space (S) is encircled in the opening/closing direction of the opening/closing body by means of the end surface in the width direction of the opening/closing body (10), the guide rail (30), and a support member (40); and the location of engagement/disengagement of the first engaged section (51) and the braking engagement section (62b) is disposed in the space (S). |
