High speed rotary body for false-twisting
AssigneeOgura Jewel Industry Co., Ltd.
InventorJunshiro Ogura
Life of this patent
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Abstract
A high speed rotary body for false-twisting comprising a tubular body in the hollow portion of which a pin element is perpendicularly fixed. The yarn to be crimped is fed into the hollow portion, looped with one turn around the pin element and delivered to a take-up bobbin. The pin element is integrally formed with three portions i.e. a smaller cylinder, a larger cylinder at one of the ends of the smaller cylinder and a truncated conical portion at the other end thereof. The intersection of the smaller and larger cylinders forms a step. When the incoming yarn portion precedes to touch the step, this portion occupies the center of the tubular body so as not to balloon during the crimping operation.
Claims8
A rotary body for false twisting from comprising a tubular body having an axis and being rotatable around said axis and a pin element in said tubular body fixed perpendicularly to said rotating axis of said tubular body, said pin element comprising a small cylinder portion having an axis, a diameter, and two ends, a larger cylinder portion at one end of said smaller cylinder portion and having a larger diameter than said diameter of said small cylinder portion, and a truncated conical portion having an axis and a truncated end, said truncated end adjoining the other end of said smaller cylinder portion, the diameter of said truncated end being the same as that of said small cylinder portion and said axis of said truncated portion and said small cylinder portion being co-axial.
Dependencies are inferred from the claim text.