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US 2003/0145434 A1Published application
Strap tightener with an auto-pulling device
OwnerChia-Sheng Lininventor
Life of this patent
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Abstract
A strap tightener has an auto-pulling device connected to a seat. The auto-pulling device includes a housing and a reversing device. The reversing device is rotatably received in the housing. The reversing device has a reel received in the housing to connect with one end of a strap. A spiral power spring is connected between the housing and the reel. Consequently, the strap can be automatically wound around the reel after the strap tightener is used. To collect the strap is convenient and the operating time of collecting the strap is saved.
Claims6
A strap tightener comprising:
- the strap tightener including:
- a seat;
- a lever pivotally mounted on the seat with a rotatable shaft;
- and
- a ratchet device mounted between the lever and the seat to control the rotatable shaft to rotate only in a single direction;
- an auto-pulling device attached to the seat and including:
- a housing connected to the seat;
- and
- a reversing device rotatably received in the housing, the reversing member having an annular reel received in the housing and a spiral power spring received in the reel and having a first end securely attached to the housing and a second end securely attached to an inner periphery of the reel;
- a first strap extending through the shaft and the housing and having a first end wound around the reel and a second with a first fastening device;
- and
- a second fastening device mounted on the seat.
9 more elements
Dependencies are inferred from the claim text.