Centrifugal clutch having centrifugal masses which are manufactured without cutting

Patent metadata

Field	Value
Publication number	US-11346406-B2
Application number	US-201816618434-A
Country	US
Kind code	B2
Filing date	May 30, 2018
Priority date	Jun 19, 2017
Publication date	May 31, 2022
Grant date	May 31, 2022

Abstract

A centrifugal clutch (1) for a drive train of a motor vehicle, has an input component (2) which serves for the introduction of torque, an output component (3) which serves for the discharge of torque. The clutch includes an engine-side centrifugal mass (5) and a transmission-side centrifugal mass (6) for actuating the friction unit (4), which centrifugal masses (5; 6) are operatively connected to an engine-side and transmission-side bent sheet metal piece (7, 8). At least one of the centrifugal masses (5; 6) has a cut-out (9) which is such that at least one device (10) which is fixed to the input component has an arm (11) which engages into the cut-out (9) in such a way that guidance of the radial displacement of at least one of the centrifugal masses (5; 6) is ensured.

First claim

What is claimed is:

1. A centrifugal clutch for a drivetrain of a motor vehicle comprising:
an input component for an introduction of torque;
an output component for an onward transfer of torque;
a switchable friction unit arranged between the input component and the output component, the switchable friction unit connecting the input component to the output component in torque-transmitting fashion by frictional engagement; and
an engine-side centrifugal mass and a transmission-side centrifugal mass configured for actuating the switchable friction unit, the engine-side centrifugal mass being in operative contact with an engine-side angled plate and the transmission-side centrifugal mass being in operative contact with a transmission-side angled plate such that a radial displacement of at least one of the engine-side and the transmission side centrifugal masses forces an axial displacement of the respective engine-side and/or transmission-side angled plate, at least one of the engine-side and the transmission side centrifugal masses having an aperture such that at least one device fixed to the input component has an arm which engages into the aperture to guide the radial displacement of at least one of the engine-side and the transmission side centrifugal masses.

2. The centrifugal clutch as claimed in claim 1 , further comprising further engine-side centrifugal masses arranged with the engine-side centrifugal mass along a circumference and further transmission-side centrifugal masses arranged with the transmission-side centrifugal mass along a circumference.

3. The centrifugal clutch as claimed in claim 1 , wherein the aperture is formed as a guide groove.

4. The centrifugal clutch as claimed in claim 1 , wherein the engine-side and transmission side centrifugal masses are formed as components which are manufactured by non-cutting methods.

5. The centrifugal clutch as claimed in claim 1 , wherein the non-cutting method include forging, punching or stamping.

6. The centrifugal clutch as claimed in claim 1 , wherein the at least one of the engine-side and the transmission side centrifugal masses having the aperture has a stamped slope.

7. The centrifugal clutch as claimed in claim 1 , wherein at least one of the engine-side and transmission-side angled plates have a slope which is geometrically adapted to the stamped slope such that the slope and the stamped slope bear against one another in an operational state.

8. The centrifugal clutch as claimed in claim 1 , wherein the stamped slope forms an angle greater than 0° and less than 90° with respect to a horizontal plane.

9. The centrifugal clutch as claimed in claim 1 , wherein the at least one device fixed to the input component is an outer disk carrier or a holding plate.

10. The centrifugal clutch as claimed in claim 1 , wherein the arm is formed by deformation.

11. The centrifugal clutch as claimed in claim 1 , wherein the engine-side centrifugal mass is connected rotationally conjointly to the input component.

12. A method of constructing a centrifugal clutch for a drivetrain of a motor vehicle comprising:
providing an input component for an introduction of torque;
providing an output component for an onward transfer of torque;
arranging a switchable friction unit between the input component and the output component, the switchable friction unit connecting the input component to the output component in torque-transmitting fashion by frictional engagement; and
providing at least one of:
an engine-side centrifugal mass for actuating the switchable friction unit, the engine-side centrifugal mass being in operative contact with an engine-side angled plate such that a radial displacement of the engine-side centrifugal mass forces an axial displacement of the engine-side angled plate, the engine-side centrifugal mass has an aperture such that at least one device fixed to the input component has an arm which engages into the aperture to restrict the radially outward displacement of the engine-side centrifugal mass, and
a transmission-side centrifugal mass configured for actuating the switchable friction unit, the transmission-side centrifugal mass being in operative contact with a transmission-side angled plate such that a radial displacement of the transmission side centrifugal mass forces an axial displacement of the transmission-side angled plate, the transmission side centrifugal mass having an aperture such that at least one device fixed to the input component has an arm which engages into the aperture to restrict the radially outward displacement of the transmission-side centrifugal mass.

13. The method as claimed in claim 12 , wherein the method includes providing both of:
the engine-side centrifugal mass for actuating the switchable friction unit, the engine-side centrifugal mass being in operative contact with the engine-side angled plate such that the radial displacement of the engine-side centrifugal mass forces the axial displacement of the engine-side angled plate, the engine-side centrifugal mass has the aperture such that at least one device fixed to the input component has the arm which engages into the aperture to guide the radial displacement of the engine-side centrifugal mass, and
the transmission-side centrifugal mass configured for actuating the switchable friction unit, the transmission-side centrifugal mass being in operative contact with the transmission-side angled plate such that the radial displacement of the transmission side centrifugal mass forces the axial displacement of the transmission-side angled plate, the transmission side centrifugal mass having the aperture such that at least one device fixed to the input component has the arm which engages into the aperture to guide the radial displacement of the transmission-side centrifugal mass.

14. The method as claimed in claim 12 , further comprising forming at least one of the engine-side and transmission side centrifugal masses by non-cutting methods.

15. The method as claimed in claim 14 , wherein the non-cutting methods include forging, punching or stamping.

16. A centrifugal clutch for a drivetrain of a motor vehicle comprising:
an input component for an introduction of torque;
an output component for an onward transfer of torque;
a switchable friction unit arranged between the input component and the output component, the switchable friction unit connecting the input component to the output component in torque-transmitting fashion by frictional engagement;
a first centrifugal mass for actuating the switchable friction unit;
a first angled plate axially between the first centrifugal mass and the output component, the first centrifugal mass being arranged with respect to the first angled plate such that a radial displacement of the first centrifugal mass forces an axial displacement of the first angled plate; and
a first arm fixed to the input component, the first centrifugal mass having a first aperture, the first arm being received in the first aperture and configured to restrict the radially outward displacement of the first centrifugal mass.

17. The centrifugal clutch as claimed in claim 16 , further comprising:
a second centrifugal mass for actuating the switchable friction unit, the second centrifugal mass being axially offset from the first centrifugal mass;
a second angled plate axially between the second centrifugal mass and the output component, the second centrifugal mass being arranged with respect to the second angled plate such that a radial displacement of the second centrifugal mass forces an axial displacement of the s

Assignees

• Schaeffler Technologies Ag

Inventors

• Heck Roman

Classifications

• F16D2250/0023

  Shaping by pressure · CPC title

• F16D2250/0084

  Assembly or disassembly · CPC title

• F16D43/08 Primary

  the pressure ring actuating friction plates, cones or similar axially-movable friction surfaces · CPC title

• F16D43/10 Primary

  the centrifugal masses acting directly on the pressure ring, no other actuating mechanism for the pressure ring being provided · 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