Continuously variable transmission
US-2024288052-A1 · Aug 29, 2024 · US
Endless power transmission belt-type continuously variable transmission
US9103412B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9103412-B2 |
| Application number | US-201114347294-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 28, 2011 |
| Priority date | Sep 28, 2011 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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Among V-faces ( 48 ) of a pulley ( 15 ), a portion ( 48 a ) that is radially further inside than a predetermined position P1 is susceptible to slip against a metal belt ( 19 ), but making a shape of the generatrix of the portion ( 48 a ) on the radially inner side into a straight line enables a large coefficient of friction against the metal belt ( 19 ) to be ensured, thereby reliably preventing slip from occurring. Furthermore, by making, among the V-faces ( 48 ) of the pulley ( 15 ), a shape of the generatrix of a portion ( 48 b ) that is radially further outside than the predetermined position P1 into a curved line that curves in a direction that compensates for misalignment (C) of the metal belt ( 19 ) ensures that the metal belt ( 19 ) smoothly bites into the V-faces ( 48 ), thereby enabling the durability of the metal belt ( 19 ) or the pulley ( 15 ) to be enhanced. When the shape of the generatrix of the V-faces ( 48 ) is a curved line, the coefficient of friction against the metal belt ( 19 ) decreases, but since the portion ( 48 b ) of the V-faces ( 48 ) on the radially outer side is a portion that is naturally resistant to the occurrence of slip of the metal belt ( 19 ), there is no possibility of slip occurring even if the coefficient of friction decreases.
First claim
Opening claim text (preview).
The invention claimed is: 1. An endless power transmission belt-type continuously variable transmission comprising a drive pulley formed from a fixed-side pulley half and a movable-side pulley half, a driven pulley formed from a fixed-side pulley half and a movable-side pulley half, and an endless power transmission belt wound around a V-face of the drive pulley and a V-face of the driven pulley, a gear ratio being changed by increasing a groove width of one of the drive pulley and…
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- What does patent US9103412B2 cover?
- Among V-faces ( 48 ) of a pulley ( 15 ), a portion ( 48 a ) that is radially further inside than a predetermined position P1 is susceptible to slip against a metal belt ( 19 ), but making a shape of the generatrix of the portion ( 48 a ) on the radially inner side into a straight line enables a large coefficient of friction against the metal belt ( 19 ) to be ensured, thereby reliably preve…
- Who is the assignee on this patent?
- Yagasaki Toru, Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16H9/16. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Aug 11 2015 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).