Clutch plate with cushion segments with dual engagement characteristics

Patent metadata

Field	Value
Publication number	US-9739317-B2
Application number	US-201514743529-A
Country	US
Kind code	B2
Filing date	Jun 18, 2015
Priority date	Jun 18, 2015
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

A clutch plate, including: an axis of rotation; a first annular plate with a first side facing in an axial direction; a second annular plate: axially separated from the first annular plate by a gap; and including a second side facing the first side in an opposite axial direction; a first cushion segment connected to the first and second annular plates and including: a radially outermost edge; a slot extending into the cushion segment in a circumferential direction; a first edge connecting the slot and the radially outermost edge; and a second edge extending radially inward from the slot. The first edge contacts the second side and the second edge is separated from the second side by a distance in the axial direction; or, the second edge contacts the first side and the first edge is separated from the first side by a distance in the axial direction.

First claim

What is claimed is:

1. A clutch plate, comprising:
an axis of rotation;
a first annular backing plate with a first side facing in a first axial direction;
a second annular backing plate:
separated from the first annular backing plate by a gap in the first axial direction; and,
including a second side facing the first side in a second axial direction, opposite the first axial direction;

a first cushion segment fixedly connected to the first and second annular backing plates and including:
a radially outermost edge;
a first slot extending into the cushion segment in a first circumferential direction;
a first edge connecting the first slot and the radially outermost edge; and,
a second edge extending radially inward from the first slot, wherein:

the first edge is in contact with the second side and the second edge is separated from the second side by a first distance in the first axial direction; or,
the second edge is in contact with the first side and the first edge is separated from the first side by a first distance in the first axial direction.

2. The clutch plate of claim 1 , wherein:
the first cushion segment includes:
a second slot extending into the cushion segment in a second circumferential direction, opposite the first circumferential direction;
a third edge connecting the second slot and the radially outermost edge; and,
a fourth edge extending radially inward from the second slot;

the third edge is in contact with the second side and the fourth edge is separated from the second side by a second distance in the first axial direction; or, the fourth edge is in contact with the first side and the third edge is separated from the second side by a second distance in the first axial direction; and,
a first line, in the first circumferential direction passes through, in sequence, the first slot, material forming the cushion segment, and the second slot.

3. The clutch plate of claim 2 , wherein:
a second line, in a radial direction orthogonal to the axis of rotation, passes through the first slot and the radially outermost edge; and,
a third line, in the radial direction, passes through the second slot and the outer edge.

4. The clutch plate of claim 1 , further comprising:
a plurality of cushion segments, including the first cushion segment, axially located within the gap.

5. The clutch plate of claim 1 , further comprising:
first and second fasteners fixedly connecting the first cushion segment to the first and second annular backing plates, respectively, wherein a first line, orthogonal to the axis of rotation, passes through, in sequence, the first fastener, the first slot, and the radially outermost edge.

6. A clutch plate, comprising:
an axis of rotation;
a first annular backing plate with a first side facing in a first axial direction;
a second annular backing plate:
separated from the first annular backing plate by a gap in a first axial direction; and,
including a second side facing the first side in a second axial direction, opposite the first axial direction;

a first cushion segment:
fixedly connected to the first annular backing plate; and,
including a first opening, an entirety of which is surrounded by a first material forming the first cushion segment, wherein:

the first opening includes a first continuous edge formed by the first material;
the first continuous edge includes first and second segments;
the first segment is in contact with the first side; and,
the second segment is separated from the first side by a first distance in the first axial direction.

7. The clutch plate of claim 6 , wherein:
the first cushion segment includes a second opening, an entirety of which is surrounded by the first material forming the first cushion segment;
the second opening includes a second continuous edge formed by the first material;
the second continuous edge includes third and fourth segments;
the third segment is in contact with the first side;
the fourth segment is separated from the first side by a second distance in the first axial direction; and,
a first line in a first circumferential direction passes through the first and second openings.

8. The clutch plate of claim 6 , wherein:
the first cushion segment includes:
a first slot:
extending into the first cushion segment in a first circumferential direction; and,
including a first edge;

a second slot:
extending into the first cushion segment in the first circumferential direction; and,
including a second edge; and,

a first protrusion radially disposed between the first and second slots;

the first edge is in contact with the first side; and,
the second edge is separated from the first side by a first distance in the first axial direction.

9. The clutch plate of claim 8 , wherein a first straight line passes through the first segment, the second segment, the first edge, and the second edge.

10. The clutch plate of claim 8 , further comprising:
a fastener passing through the first protrusion and fixedly connecting the first cushion segment to the first annular backing plate.

11. The clutch plate of claim 8 , wherein:
the first cushion segment includes:
a third slot extending into the first cushion segment in a second circumferential direction, opposite the first circumferential direction, and including a third edge;
a fourth slot extending into the first cushion segment in the second circumferential direction and including a fourth edge; and,
a second protrusion radially disposed between the third and fourth slots;

the third edge is in contact with the first side; and,
the fourth edge is separated from the first side by a second distance in the first axial direction.

12. The clutch plate of claim 8 , wherein:
the first cushion segment includes:
a third slot extending into the first cushion segment in the first circumferential direction;
a fourth slot extending into the first cushion segment in the first circumferential direction; and,
a second protrusion radially disposed between the third and fourth slots; and,

a straight line passes through the first opening, the first protrusion and the second protrusion.

13. The clutch plate of claim 6 , wherein the first cushion segment includes a protrusion formed by the first opening, the clutch plate further comprising:
a fastener passing through the protrusion and fixedly connecting the first cushion segment to the first annular backing plate.

14. The clutch plate of claim 6 , wherein:
the first continuous edge includes third and fourth segments;
the third segment is in contact with the first side; and,
the fourth segment is separated from the first side by a second distance in the first axial direction.

15. A clutch plate, comprising:
an axis of rotation;
a first annular backing plate with a first side facing in a first axial direction;
a second annular backing plate:
separated from the first annular backing plate by a gap in a first axial direction; and,
including a second side facing the first side in a second axial direction, opposite the first axial direction;

a first cushion segment fixedly connected to the first annular backing plate, the first cushion segment including a first radially outermost edge with first and second portions and a first opening, an entirety of which is surrounded by a first material forming the first cushion segment, a first continuous edge formed by the first material, the first opening including a first continuous edge formed by the first material; and,
a second cushion segment fixedly connected to the second annular backing plate, the second cush

Assignees

• Schaeffler Technologies Ag

Inventors

• Lu Phong

Classifications

• F16D13/68 Primary

  Attachments of plates or lamellae to their supports {(one or more discs connected to the linings transmitting torque to one or more discs connected to the hub by helical springs in windows in the discs, i.e. rotary vibration dampers F16F15/12)} · CPC title

• F16D2013/642

  with resilient attachment of frictions rings or linings to their supporting discs or plates for allowing limited axial displacement of these rings or linings · CPC title

• F16D13/64

  Clutch-plates; Clutch-lamellae (brake-plates, brake-lamellae F16D65/12) · CPC title