Weft yarn measuring and storing device of a loom
US-2017101731-A1 · Apr 13, 2017 · US
Weft yarn measuring and storing device of a loom
US10221507B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10221507-B2 |
| Application number | US-201615290448-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 11, 2016 |
| Priority date | Oct 12, 2015 |
| Publication date | Mar 5, 2019 |
| Grant date | Mar 5, 2019 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
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.
First claim
Opening claim text (preview).
What is claimed is: 1. 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. 2. 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. 3. The weft yarn measuring and storing device according to claim 2 , wherein the rough surface portion is provided on a cylindrical member that is disposed between an outer peripheral surface of the support shaft and an inner peripheral surface of a fit portion of the support lever.
Assignees
Inventors
Classifications
- D03D47/363Primary
Construction or control of the yarn retaining devices · CPC title
- D03D47/36Primary
Measuring and cutting the weft · CPC title
by gas jet · CPC title
- D03D47/362Primary
with yarn retaining devices, e.g. stopping pins (D03D47/367 takes precedence) · CPC title
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Frequently asked questions
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- What does patent US10221507B2 cover?
- 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, …
- Who is the assignee on this patent?
- Toyota Jidoshokki Kk
- What technology area does this patent fall under?
- Primary CPC classification D03D47/363. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Mar 05 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).