| 摘要 |
A ring diameter variator for a ring-shaped accessory is provided with: a case (3) having first and second outlets (9a, 9b) at both end portions; a reel (4) rotatably housed within the case (3); first and second adjusting straps (5a, 5b) which are each wound in the same direction onto the reel (4) and pulled out to the outside from the first and second outlets (9a, 9b) and connected to one end and the other end of the ring-shaped accessory (1); and a spiral spring (6) which rotationally biases the reel (4) in the winding direction (A) of the first and second adjusting straps (5a, 5b). As a result, it is possible to provide a ring diameter variator for a ring-shaped accessory which can extend ring diameter sufficiently while having superior appearance. |
