Spool, tightening device with spool, and coupling method of spool and lace
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United States of America Patent
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Issued Date -
Jun 20, 2024
app pub date -
Jun 28, 2023
filing date -
Jun 28, 2023
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Abstract
A spool, a tightening device with the spool, and a coupling method of the spool and a lace are provided. A first free end and a second free end of the lace are routed in subtended directions along a first routing path and a second routing path, respectively. The first routing path and the second routing path are designed in separate grade crossing structure. Even if the first free end and the second free end are routed simultaneously, they will not collide with each other. When the lace is knotted, there is no strict requirement for the length of a reserved tail of the lace. Even if the tail of the lace is left outside a housing, the tail of the lace can be wound onto the spool by rotating the spool, without affecting the normal operation of the tightening device. The method achieves easy, quick, and accurate lace coupling.
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