Gripping device of sewing thread for bookbinding sewing machine with gas jet
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United States of America Patent
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Oct 1, 2024
Grant Date -
Feb 16, 2023
app pub date -
Dec 24, 2020
filing date -
Dec 24, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A gripping device (200) is proposed for gripping a sewing thread (415) in a bookbinding sewing machine (100). The gripping device (200) comprises a crochet (205) and a body (220) that are slidable reciprocally between an open condition, wherein a hook (215) of the crochet (205) hooks the sewing thread (415), and a closed condition, wherein the hook (215) blocks the sewing thread (415); the body (220) has one or more channels (270) crossing it for conveying a gas jet towards the hook (215). A bookbinding sewing machine (100) comprising one or more gripping devices (200) is also proposed. Moreover, a corresponding method for sewing signatures (115) into book blocks (155) is proposed.
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