Traveller changer
AssigneeMurata Kikai Kabushiki Kaisha
InventorHiroo Otoshima
Life of this patent
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Abstract
A traveller changer in which a first operating portion having a tensor for absorbing the slack of yarn passed through a traveller in a ring spinning frame, and a second operating portion having a yarn hooking lever, a traveller removing element and a traveller mounting elements are provided on a carrier unit, the first operating portion being disposed at a predetermined certain height relative to the carrier unit, and the second operating portion being disposed vertically movably in arrowed directions with respect to the carrier unit so that it can follow up the height of a ring rail.
Claims4
A device for changing a traveller on a ring in a ring spinning frame for spinning yarn, the yarn having an upper yarn portion and a lower yarn portion, the ring having a circumference, the device comprising:
- a rotary shaft advancable toward the ring and rotatable relative to the ring, the rotary shaft having a front end,
- a bent member formed substantially at the front end of the rotary shaft, the bent member having a first end and a second end, the first end being relatively closer to the rotary shaft than the second end,
- a lower yarn hooking section formed substantially at the first end of the bent member for hooking the lower yarn portion, and
- an upper yarn hooking section formed substantially at the second end of the bent member for hooking the upper yarn portion and holding the upper yarn portion in a position at which the upper yarn is at an angle relative to the circumference of the ring and is in spaced relationship with the ring,
- whereby a traveller is removable from the ring when the upper yarn is held in spaced relationship with the ring.
A method for changing a traveller on a ring in a ring spinning frame for spinning yarn, the yarn having an upper yarn portion and a lower yarn portion, the ring having a circumference, the method comprising:
- providing a rotary shaft having a front end,
- providing a bent member substantially at the front end of the rotary shaft, the bent member having a first end and a second end, the first end being relatively closer to the rotary shaft than the second end,
- providing a lower yarn hooking section substantially at the first end of the bent member,
- providing an upper yarn hooking section substantially at the second end of the bent member,
- advancing the rotary shaft toward the ring
- rotating the rotary shaft relative to the ring,
- hooking the lower yarn portion with the lower yarn hooking section,
- hooking the upper yarn portion with the upper yarn hooking section,
- holding the upper yarn portion in a position at which the upper yarn is at an angle relative to the circumference of the ring and is in spaced relationship with the ring,
- whereby a traveller is removable from the ring when the upper yarn is held in spaced relationship with the ring.
Dependencies are inferred from the claim text.