Friction Drive Belt
US-2019003555-A1 · Jan 3, 2019 · US
Friction drive belt
US11300178B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11300178-B2 |
| Application number | US-201616064191-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2016 |
| Priority date | Dec 21, 2015 |
| Publication date | Apr 12, 2022 |
| Grant date | Apr 12, 2022 |
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- Title
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Abstract
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The present invention pertains to a frictional power transmission belt including a tension member extending in the longitudinal direction of the belt and an adhesion rubber layer in contact with at least a portion of the tension member, in which the adhesion rubber layer is formed of a vulcanized rubber composition containing a rubber component, short fibers having an average fiber diameter of 2 μm or more, and a filler.
First claim
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The invention claimed is: 1. A frictional power transmission belt comprising: a tension member extending in a longitudinal direction of a belt, and an adhesion rubber layer in contact with at least a portion of the tension member, wherein the adhesion rubber layer is formed of a vulcanized rubber composition comprising: a rubber component, short fibers having an average fiber diameter of 2 μm or more, and a filler comprising silica and carbon black, wherein a proportion of the carbon black is 15 to 100 parts by mass based on 100 parts by mass of the silica, wherein a proportion of the filler is 50 to 70 parts by mass based on 100 parts by mass of the rubber component, wherein a proportion of the short fibers is 0.5 to 10 parts by mass based on 100 parts by mass of the rubber component, wherein the short fibers comprise an aramid fiber, wherein the short fibers are buried in the adhesion rubber layer so as to be oriented in a width direction of the belt, and wherein the frictional power transmission belt is a raw-edge cogged V-belt. 2. The frictional power transmission belt according to claim 1 , wherein the rubber component comprises chloroprene rubber. 3. The frictional power transmission belt according to claim 1 , wherein the average fiber diameter of the short fibers is 5 to 50 μm. 4. The frictional power transmission belt according to claim 1 , wherein the short fibers have an average fiber length of 1.5 to 20 mm. 5. The frictional power transmission belt according to claim 1 , wherein the adhesion rubber layer is formed of the vulcanized rubber composition having a ratio (compression stress/bending stress ratio) of compression stress to bending stress being 0.6 to 0.8. 6. The frictional power transmission belt according to claim 1 , being a variable speed belt used in a continuously variable transmission device.
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- What does patent US11300178B2 cover?
- The present invention pertains to a frictional power transmission belt including a tension member extending in the longitudinal direction of the belt and an adhesion rubber layer in contact with at least a portion of the tension member, in which the adhesion rubber layer is formed of a vulcanized rubber composition containing a rubber component, short fibers having an average fiber diameter of …
- Who is the assignee on this patent?
- Mitsuboshi Belting Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16G5/08. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 12 2022 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).