Weft yarn measuring and storing device of a loom
AssigneeKabushiki Kaisha Toyota Jidoshokki
InventorsYasushi Yamauchi, Haruo Shimazaki, Natsuki Kakiuchi
Life of this patent
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Abstract
A weft yarn measuring and storing device of a loom includes a drive roller, a support shaft, a support lever is turnably mounted to the support shaft, a feed roller that is rotatably mounted to the support lever and pressed to be contacted against the drive roller by a spring force so that the feed roller is rotated by rotation of the drive roller to pinch a weft yarn therebetween for feeding, and a storing drum that takes up and stores the fed weft yarn. The weft yarn measuring and storing device further includes a friction resistance imparting portion that imparts the support lever a friction resistance against turning of the support lever.
Claims3
A weft yarn measuring and storing device of a loom, comprising:
- a drive roller;
- a support shaft,
- a support lever that is turnably mounted to the support shaft;
- a feed roller that is rotatably mounted to the support lever and pressed to be contacted against the drive roller by a spring force so that the feed roller is rotated by rotation of the drive roller to pinch a weft yarn therebetween for feeding;
- and
- a storing drum that takes up and stores the fed weft yarn, wherein
- the weft yarn measuring and storing device further includes a friction resistance imparting portion that imparts the support lever a friction resistance against turning of the support lever,
- the support lever has a fit portion that is fitted to the support shaft,
- the friction resistance imparting portion is formed by an elastic member, and
- the elastic member is a wave washer or a coil spring that is disposed in contact with an end surface of the fit portion.
A weft yarn measuring and storing device of a loom, comprising:
- a drive roller;
- a support shaft,
- a support lever that is turnably mounted to the support shaft;
- a feed roller that is rotatably mounted to the support lever and pressed to be contacted against the drive roller by a spring force so that the feed roller is rotated by rotation of the drive roller to pinch a weft yarn therebetween for feeding;
- and
- a storing drum that takes up and stores the fed weft yarn, wherein
- the weft yarn measuring and storing device further includes a friction resistance imparting portion that imparts the support lever a friction resistance against turning of the support lever and
- the friction resistance imparting portion is a rough surface portion formed by a surface-roughening treatment so as to have a surface that is rougher than an untreated portion and that increases the friction resistance between the support shaft and the support lever.
Dependencies are inferred from the claim text.