(57) A twisting member (31) of a splicing device (7) includes a yarn splicing hole (34a)
in which yarns to be twisted (Y, Y1, Y2) are set, groove portions (37, 37) as gas
release portions (37, 37) formed in directions different from a longitudinal direction
of the yarn splicing hole (34a), and air paths (34c, 34c) provided in a pair that
form air injection ports (34b, 34b), respectively, in the yarn splicing hole (34a)
and form whirling flows opposite to each other inside the yarn splicing hole (34a).
A plurality of groove portions (37, 37) are formed, and the air injection ports (34b,
34b) formed by the air paths (34c, 34c) in the yarn splicing hole (34a) are positioned
further outside than the plurality of groove portions (37, 37).
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