IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0567156
(2009-09-25)
|
등록번호 |
US-8448765
(2013-05-28)
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발명자
/ 주소 |
|
출원인 / 주소 |
- Schaeffler Technologies AG & Co. KG
|
대리인 / 주소 |
Fitzpatrick, Cella, Harper & Scinto
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
4 |
초록
▼
Example aspects of the present invention comprise two concentric rings, the rings movable relative to each other and defining a clearance between them for receiving at least one ball. The first ring is a coupling member, the second ring is a tubular slipper with a friction surface on the far side of
Example aspects of the present invention comprise two concentric rings, the rings movable relative to each other and defining a clearance between them for receiving at least one ball. The first ring is a coupling member, the second ring is a tubular slipper with a friction surface on the far side of the clearance, and the ball contacts the coupling member to the tubular slipper. At least one ring has a first recess with side walls for receiving the least one ball, and the friction surface is configured to displace in a radial direction when the at least one ball is axially aligned with the first recess and forced to run up the side walls by rotating the rings relative to one another. In an example embodiment of the invention, the first recess is a calotte.
대표청구항
▼
1. A coupling comprising: two concentric rings having a common axial direction, the rings being movable relative to each other and defining a clearance between them extending in the common axial direction for receiving at least one ball, the first ring being a coupling member, the second ring being
1. A coupling comprising: two concentric rings having a common axial direction, the rings being movable relative to each other and defining a clearance between them extending in the common axial direction for receiving at least one ball, the first ring being a coupling member, the second ring being a tubular slipper with a friction surface on an outer surface of the tubular slipper that is away from the clearance and the at least one ball, the at least one ball providing contact between the coupling member and the tubular slipper, at least one of the rings having a first recess with side walls for receiving the least one ball, the friction surface being configured to be displaced in a radial direction when the at least one ball is axially aligned with the first recess and forced to run up the side walls by rotating the rings relative to one another, and the side walls extending in the common axial direction such that the at least one ball continues to run up the side walls and provide contact between the coupling member and the tubular slipper when one of the rings is displaced in the common axial direction with respect to another one of the rings. 2. The coupling of claim 1, wherein the first recess is a calotte or round cavity. 3. The coupling of claim 1, wherein one of the rings has a bordered flange for limiting the axial movement of the rings. 4. A coupling comprising: two concentric rings, the rings being movable relative to each other and defining a clearance between them for receiving at least one ball, the first ring being a coupling member, the second ring being a tubular slipper with a friction surface on an outer surface of the tubular slipper that is away from the clearance and the at least one ball, the at least one ball providing contact between the coupling member and the tubular slipper, at least one of the rings having a first recess with side walls for receiving the least one ball, and the friction surface being configured to be displaced in a radial direction when the at least one ball is axially aligned with the first recess and forced to run up the side walls by rotating the rings relative to one another,wherein at least one of the coupling member and the tubular slipper has a second recess axially disposed from the first recess, and wherein the friction surface is configured to not be displaced in a radial direction when the at least one ball is axially aligned with the second recess and the coupling member and the tubular slipper are rotated relative to one another. 5. The coupling of claim 4, wherein the coupling member, the tubular slipper, or both include the first recess. 6. The coupling of claim 5, wherein the rings include multiple first recesses circumferentially displaced. 7. The coupling of claim 6, wherein the at least one ball is a plurality of balls forming a single row or multiple rows. 8. The coupling of claim 7, wherein the plurality of balls are disposed in a ball cage. 9. The coupling of claim 8, wherein the ball cage is formed of stamped sheet metal. 10. The coupling of claim 5, wherein both rings include the first recess, and the first recesses are radially aligned. 11. The coupling of claim 10, wherein both rings include the first recess and one or both rings includes the second recess. 12. The coupling of claim 4, wherein the side walls of the first recess have an arched shape. 13. A coupling comprising: two concentric rings, the rings being movable relative to each other and defining a clearance between them for receiving at least one ball, the first ring being a coupling member, the second ring being a tubular slipper with a friction surface on an outer surface of the tubular slipper that is away from the clearance and the at least one ball, the at least one ball providing contact between the coupling member and the tubular slipper, at least one of the rings having a first recess with side walls for receiving the least one ball, and the friction surface being configured to be displaced in a radial direction when the at least one ball is axially aligned with the first recess and forced to run up the side walls by rotating the rings relative to one another,wherein, in the clearance, at least one cylindrical roller element is placed axially next to the at least one ball, the at least one ball being elastic and having a slighter bigger diameter than the diameter of the at least one cylindrical roller element, so that an axial movement between the rings in an unencumbered condition is carried only by the at least one ball, and a load between the rings in a charged state is carried only by the at least one cylindrical roller element. 14. A method of operating a coupling comprising: providing a coupling comprising two concentric rings having a common axial direction, the rings being movable relative to each other and defining a clearance between them extending in the common axial direction for receiving a plurality of balls, the first ring being a coupling member, the second ring being a tubular slipper with a friction surface on an outer surface of the tubular slipper that is away from the clearance and the plurality of balls, the plurality of balls providing contact between the coupling member and the tubular slipper;axially aligning the plurality of balls in a first arched recess of at least one of the coupling member and the tubular slipper;rotating at least one of the coupling member and the tubular slipper to apply a radial force to at least one of the coupling member and the tubular slipper; anddisplacing one of the coupling member and the tubular slipper in the common axial direction with respect to another of the coupling member and the tubular slipper, while maintaining the radial force applied to the at least one of the coupling member and the tubular slipper, and while the plurality of balls maintain contact between the coupling member and tubular slipper. 15. The method of claim 14, further comprising: axially aligning the plurality of balls in a second recess to eliminate the radial force.
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