Lever system

Patent metadata

Field	Value
Publication number	US-2016195178-A1
Application number	US-201314412606-A
Country	US
Kind code	A1
Filing date	Jun 17, 2013
Priority date	Jul 3, 2012
Publication date	Jul 7, 2016
Grant date	—

Abstract

A lever system for actuating at least one clutch, comprising at least one pivotable lever that has a certain bending stiffness. The lever has at least one flexurally elastic zone which is designed and/or arranged in such a way that the bending stiffness of the lever varies in accordance with an actuation path of the clutch.

First claim

What is claimed is:

1 - 10 . (canceled)

11 . A lever system for actuating at least one clutch, comprising:
at least one pivotable lever having a certain flexural rigidity wherein said lever has at least one flexurally elastic region that is designed and/or arranged in such a way that said flexural rigidity of said lever varies as a function of an actuating path of said clutch.

12 . The lever system recited in claim 11 , wherein said lever has a negative rigidity gradient across said actuating path of said clutch.

13 . The lever system recited in claim 11 , wherein an actuating contact region is arranged between a pivot for pivotably arranging said lever and a contact region for a roller.

14 . The lever system recited in claim 13 , wherein a cam track is formed in said contact region for said roller on said lever in such a way that said actuating path of said clutch increases as a distance between said roller and said clutch axis increases.

15 . The lever system recited in claim 13 , wherein said flexurally elastic region is arranged between said actuating contact region and said pivot for pivotably arranging said lever.

16 . The lever system recited in claim 13 , wherein said flexurally elastic region extends from said pivot for pivotably arranging said lever beyond said actuating contact region.

17 . The lever system recited in claim 13 , wherein said flexurally elastic region is implemented by a counter-spring rigidity associated with said pivot for pivotably arranging said lever.

18 . The lever system recited in claim 11 , wherein said lever for actuating two partial clutches of a twin clutch is combined with a lever actuator.

19 . An actuating device for actuating at east one clutch comprising said lever system as recited in claim 11 .

20 . A clutch device comprising at least one clutch that has a regressive characteristic map and is actuated by said lever system as recited in claim 11 .

Assignees

• Schaeffler Technologies Ag

Inventors

• Herkommer Dominik
• Baehr Markus

Classifications

• F16H37/124 Primary

  for interconverting rotary motion and reciprocating motion · CPC title

• F16D2023/126

  Actuation by rocker lever; Rocker levers therefor · CPC title

• Y10T74/20564

  Flexible · CPC title

• Y10T74/20582

  Levers · CPC title

• F16D23/12 Primary

  Mechanical clutch-actuating mechanisms arranged outside the clutch as such (specific for combined clutches F16D21/00; mechanisms specific for synchronisation F16D23/02) · CPC title