| 摘要 |
A ring diameter variator for a ring-shaped accessory includes a case (3) that has first and second pull-out ports (9a, 9b) in opposite end parts, a reel (4) that is rotatably housed within the case (3), first and second adjustment straps (5a, 5b) that are each wound up in the same direction by the reel (4) and pulled outward through the first and second pull-out ports (9a, 9b) and that are connected to one end and the other end of the ring-shaped accessory (1), and a spiral spring (6) that rotatingly urges the reel (4) in a wind-up direction (A) of the first and second adjustment straps (5a, 5b). Thus, it is possible to provide a ring diameter variator for a ring-shaped accessory that enables sufficient enlargement of ring diameter and that has a good appearance. |
