| 摘要 |
An automatic winding device is provided for a strap fastener. The automatic winding device includes a housing, a reel rotationally received in the housing for winding a strap introduced through the strap fastener and a spring connected between the housing and the reel. A shaft is securely received in the housing for supporting the reel. The spring is a coil spring mounted on the shaft and received in the reel. The spring includes an internal end secured to the shaft and an external end secured to the reel. In an aspect, at least one ratchet wheel is formed on the reel, and a detent is movably mounted on the housing for releasable engagement with the reel. The detent is biased by means of a second spring. The housing defines a slot through which the detent is inserted. The housing includes a stem formed thereon within the slot. The detent includes a groove defined therein for receiving the stem and the second spring. Thus, the second spring is compressed between the stem and a portion of the detent.
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