Disk for a friction clutch

Patent metadata

Field	Value
Publication number	US-10138948-B2
Application number	US-201414888035-A
Country	US
Kind code	B2
Filing date	Apr 1, 2014
Priority date	May 3, 2013
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

A disc (1, 2) for a friction clutch (3), including an annular plate (4, 5) having friction surfaces on both faces (6, 7) and at least one seat (8, 9) for at least one spring (10, 11), wherein the at least one spring is configured to space adjacent discs in a friction clutch by at least one seat, and wherein the at least one spring is integral with the disc. Using the disc proposed here for a friction clutch, it is possible without additional components, or with an integrated use of existing components, to ensure a reliable spacing of the discs relative to one another.

First claim

What is claimed is:

1. A disc for a friction clutch comprising:
an annular plate with friction faces on both sides,
at least one spring; and
at least one seat the at least one spring configured to space an adjacent disc in the friction clutch via contacting at least one further seat of the adjacent disc and the at least one seat configured to space the adjacent disc in the friction clutch via contacting at least one further spring of the adjacent disc, wherein the at least one spring and the at least one seat are formed of a same piece of material as the annular plate, the at least one spring having a connection to the annular plate and extending radially away from the connection and circumferentially with respect to the connection, the at least one seat extending axially away from the annular plate.

2. The disc recited in claim 1 wherein the at least one spring is an arched torsional bending spring extending circumferentially with respect to the annular plate.

3. The disc as recited in claim 1 wherein the at least one spring includes two springs mirror-symmetric relative to each other.

4. A friction clutch for detachably connecting an input shaft with at least one output shaft, the friction clutch comprising:
a pressure plate;
a plurality of discs, each of the plurality of discs as recited in claim 1 ;
at least one retainer plate; and
a counterplate.

5. The friction clutch recited in claim 4 wherein the discs are of identical construction.

6. The friction clutch as recited in claim 5 wherein the discs are rotationally offset relative to one another.

7. The friction clutch as recited in claim 4 wherein the at least one spring of one of the plurality of discs forms a centering element via a corresponding stop of an adjacent disc of the plurality of discs.

8. A motorcycle comprising:
a drive unit with a drive shaft;
a drive train; and
the friction clutch as recited in claim 4 for detachably connecting the drive shaft with the drive train.

9. The disc as recited in claim 3 wherein the two springs include a first spring extending circumferentially with respect to the annular plate in a first circumferential direction and a second spring extending circumferentially with respect to the annular plate in a second circumferential direction opposite the first circumferential direction.

10. The disc as recited in claim 1 wherein the at least one seat and the at least one spring are fixed to an inner circumference of the annular plate.

11. The disc as recited in claim 1 wherein the at least one spring includes a first portion fixed to and extending radially away from the annular plate, a second portion extending circumferentially away from the first portion and a third portion extending radially away from the second portion toward the annular plate.

12. The disc as recited in claim 11 wherein the third portion forms a free end of the at least one spring.

13. A friction clutch for detachably connecting an input shaft with at least one output shaft, the friction clutch comprising:
a pressure plate;
a plurality of discs, each of the plurality of discs being as recited in claim 1 ;
a plurality of adjacent discs interleaved with the plurality of discs, each of the plurality of adjacent discs including a respective spring and seat that are mirror symmetric with the at least one spring and the at least one seat, respectively;
at least one retainer plate; and
a counterplate.

14. A friction clutch for detachably connecting an input shaft with at least one output shaft, the friction clutch comprising: a pressure plate; at least one retainer plate; a counterplate; a first friction disc including a first annular plate with first friction faces on both axial sides, a first spring and a first seat, the first spring having a first connection to the first annular plate and extending radially away from the first connection and circumferentially with respect to the first connection, the first seat extending axially away from the first annular plate, the first spring and the first seat being formed of a same piece of material as the first annular plate; and
a second friction disc including a second annular plate with second friction faces on both axial sides, a second spring and a second seat, the second spring having a second connection to the second annular plate and extending radially away from the second connection and circumferentially with respect to the second connection, the second seat extending axially away from the second annular plate, the second spring and the second seat being formed of a same piece of material as the second annular plate, the second spring configured to space the second friction disc from the first friction disc in the friction clutch via contacting the first seat.

15. The friction clutch recited in claim 14 wherein the first and second friction discs are of identical construction.

16. The friction clutch as recited in claim 14 wherein the first and second friction discs are rotationally offset relative to one another.

17. The friction clutch as recited in claim 14 further comprising a third friction disc including a third annular plate with third friction faces on both axial sides, a third spring and a third seat, the third spring and the third seat being formed of a same piece of material as the third annular plate, the second seat extending axially away from the second annular plate, the third spring configured to space the third friction disc from the second friction disc in the friction clutch via contacting the second seat.

18. The friction clutch as recited in claim 17 wherein the third spring extends radially away from and circumferentially with respect to the third annular plate.

19. The friction clutch as recited in claim 18 wherein the first spring extends radially away from an inner circumference of the first annular plate, the second spring extends radially away from an inner circumference of the second annular plate and the third spring radially away from an inner circumference of the third annular plate.

20. The friction clutch as recited in claim 18 wherein the third seat extends axially away from the third annular plate.

Assignees

• Schaeffler Technologies Ag

Inventors

• Grumer Friedericke
• Raber Christoph
• Moser Jasmin

Classifications

• B62K11/00

  Motorcycles, engine-assisted cycles or motor scooters with one or two wheels (fairings or streamlining parts not forming part of the frame B62J; transmission of drive from engines to wheels B62M) · CPC title

• B62M17/00

  Transmissions characterised by use of rotary shaft, e.g. cardan shaft · CPC title

• F16D13/69

  Arrangements for spreading lamellae in the released state · CPC title

• F16D13/52

  Clutches with multiple lamellae {; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member (F16D13/385 takes precedence)} · CPC title

• F16D13/648 Primary

  for clutches with multiple lamellae · CPC title