Patent ID: 7257866

Claim:
A strap-adjusting device comprising: a base frame formed with an opening; a cover member mounted on said base frame, cooperating with said base frame to form a strap-operating space that is in spatial communication with said opening, and having a lateral wall formed with a strap hole unit; a strap holder disposed movably in said strap operating space and operable for movement between a strap-retaining position and a strap-releasing position, said strap holder including an operating portion actuatable from said opening in said base frame, a biased portion, and a strap-engaging portion between said operating portion and said biased portion, said strap-engaging portion cooperating with said operating portion and said biased portion to form a strap passage unit, wherein said strap-engaging portion is configured with an inverted wedge part that projects toward said base frame to permit clamping of a strap against said base frame when said strap holder is at the strap-retaining position; and a biasing member disposed in said strap-operating space to provide a biasing force that acts on said biased portion for urging said strap holder to the strap-retaining position; whereby, when the strap is extended into said strap-operating space via said strap hole unit, is passed through said strap passage unit, and is subsequently extended out of said strap-operating space via said strap hole unit, movement of said strap holder to the strap-retaining position by virtue of biasing action of said biasing member enables clamping of the strap by said strap holder, and movement of said strap holder to the strap-releasing position by virtue of an applied force exerted on said operating portion enables said strap holder to release the strap from being clamped.