| 摘要 |
An eyeglass holding device (7) has a strap (4') with a clip for attaching the strap end to an eyeglass frame (1'). The strap feeds in and out of a housing (8) which contains reel (14) on which the cord winds. The housing is detachably mounted on a hat or shirt for example with VELCRO. The strap winding mechanism inside the housing includes a torsion spring (21) for retracting the strap back into the housing; a rachet (18) and pawl (17) acting as lock to stop the spring from pulling the strap in once it is pulled out; and a button (16) to release the lock. The eyeglasses can be pulled to bring out any length of the straps. The torsion spring retracts the cords while the button is pressed.
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