Entangling protection arrangement for a thread feeding buffer
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United States of America Patent
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Nov 23, 1999
Grant Date -
N/A
app pub date -
Mar 3, 1998
filing date -
Feb 14, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
A thread feeding buffer for feeding a fibre thread from a magazine roll to a feed apparatus at a robot arm which is freely movable in the room. The thread feeding buffer including a thread brake and at least one movable thread guide on which a thrust force is acting. The thread is running from the magazine roll via a brake through the thread guide and further on towards the feed apparatus in such a way, that the thrust force acts for creation of a thread buffer between the brake and the feed apparatus, which buffer is variable in length. At least one guide rod for guiding the movable thread guide is arranged to cause a braking effect on downward movement of the movable thread guide for preventing entanglement of the thread fed through the movable thread guide following a rapid fall of the movable thread guide.
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