Separator, machine element, motion guide device and industrial machine
US-10837490-B2 · Nov 17, 2020 · US
Separator, mechanical element, operation guide device and manufacturing apparatus
US11028261B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11028261-B2 |
| Application number | US-201917049272-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 21, 2019 |
| Priority date | Apr 27, 2018 |
| Publication date | Jun 8, 2021 |
| Grant date | Jun 8, 2021 |
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- Title
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Abstract
Official abstract text for this publication.
Provided is a separator having excellent chemical resistance, impact resistance, and productivity. A bearing retainer (1) is a separator that is interposed between two spheres adjacent to and moving in conjunction with each other for retaining the spheres configured to be movable in conjunction with and apart from each other and is formed from a resin composition containing a fluororesin which is a polymer of a monomer containing vinylidene fluoride as a main component. The bending modulus of elasticity of the resin composition is 1600 MPa or less, and the Charpy impact strength of the resin composition is 26 kJ/m2 or more.
First claim
Opening claim text (preview).
The invention claimed is: 1. A separator that is interposed between two spheres adjacent to and moving in conjunction with each other for retaining the spheres configured to be movable in conjunction with and apart from each other, the separator being formed from a resin composition comprising a fluororesin which is a polymer of a monomer containing vinylidene fluoride as a main component, wherein a bending modulus of elasticity of the resin composition is 1600 MPa or less, and Charpy impact strength of the resin composition is 26 kJ/m 2 or more. 2. The separator according to claim 1 , wherein the fluororesin is a polyvinylidene fluoride-based copolymer further containing a halogen-containing monomer other than vinylidene fluoride as the monomer. 3. The separator according to claim 2 , wherein the halogen-containing monomer contains hexafluoropropylene. 4. The separator according to claim 1 , wherein the fluororesin contains a polyvinylidene fluoride-based copolymer and polyvinylidene fluoride. 5. A mechanical element comprising: two or more spheres that are arranged and configured to be movable in conjunction with each other; and the separator described in claim 1 , which is interposed between the adjacent spheres to retain the spheres configured to be movable in conjunction with and apart from each other. 6. An operation guide device comprising: a first member; and a second member that is arranged and configured to be relatively movable in contact with the first member, wherein the mechanical element described in claim 5 is arranged at a place where the first member and the second member come into contact with each other in at least one of the first member and the second member. 7. The operation guide device according to claim 6 , which is a ball screw. 8. A manufacturing apparatus comprising the operation guide device described in claim 6 . 9. A manufacturing apparatus comprising the operation guide device described in claim 7 .
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Frequently asked questions
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- What does patent US11028261B2 cover?
- Provided is a separator having excellent chemical resistance, impact resistance, and productivity. A bearing retainer (1) is a separator that is interposed between two spheres adjacent to and moving in conjunction with each other for retaining the spheres configured to be movable in conjunction with and apart from each other and is formed from a resin composition containing a fluororesin which …
- Who is the assignee on this patent?
- Kureha Gohsen Co Ltd, Thk Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08L27/16. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 08 2021 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).