Device for manufacturing an automotive tire bead
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United States of America Patent
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-
Mar 31, 1992
Grant Date -
N/A
app pub date -
Dec 7, 1990
filing date -
Dec 22, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device (1) for manufacturing a tire bead (2) consisting of an annular element (3) formed from a metal wire (4) wound in such a manner as to form a number of coils packed by a flexible packing member (6) wound about the annular element (3) and having its opposite ends (7) tied in a knot (8). An annular mandrel (9) on the device (1) defines a first annular duct (38) for forming the annular element (3), and a second duct (39) coiled about the first duct (38). The mandrel (9) is connected to a pneumatic knotting machine (10) having an input duct (62) and an output duct (63) defining the two halves of a flat knot (64) and communicating respectively with the inlet (46) and outlet (47) of the second duct (39).
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