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US 2010/0212280 A1Published application
Spindle for winding yarns in winding tubes or tubular winding cores
OwnerMariella Crottiinventor
Life of this patent
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Abstract
The spindle (1) comprises, in proximity of one end, an axial locking member (21) of the winding tube (3). The locking member can assume an active condition of axial locking of the tube as a result of rotation of the spindle and an inactive position when the spindle is not moving.
Claims11
A spindle for winding a yarn on a winding tube, the spindle comprising:
- a base;
- a free end opposite said base;
- an axial locking member of the winding tube, said axial locking member being in proximity of said free end, said locking member being able to assume an active condition of axial locking of the tube as a result of rotation of the spindle and an inactive position when the spindle is not moving, wherein said axial locking member is stressed in the inactive position through gravity and said axial locking member is activated in the locking position through centrifugal force.
A unit, comprising:
- a winding tube;
- and
- a spindle comprising a base, a free end opposite said base and an axial locking member of the winding tube, said axial locking member being in proximity of said free end, said locking member being able to assume an active condition of axial locking of the tube as a result of rotation of the spindle and an inactive position when the spindle is not moving, wherein said axial locking member is stressed in the inactive position through gravity and said axial locking member is activated in the locking position through centrifugal force, wherein said winding tube has a conical collar snap fitted inside the winding tube in a position such that said axial locking member is arranged above said conical collar when said winding tube is fitted on said spindle.
Dependencies are inferred from the claim text.