Connecting means for brake disc assembly

• US 9,903,428 B2
• Filed: 12/09/2014
• Issued: 02/27/2018
• Est. Priority Date: 12/20/2013
• Status: Active Grant

• Current Assignee: Brembo SGL Carbon Ceramic Brakes GmbH (Sgl Carbon Se)
• Original Assignee: Brembo SGL Carbon Ceramic Brakes GmbH (Sgl Carbon Se)
• Inventors: Reulein, Harald
• Primary Examiner(s): Schwartz, Christopher
• Application Number:
  US15/104,315
• Publication Number:
  US 20160319893A1
• Time in Patent Office: 1,176 Days
• Field of Search: 248635, 2671402-1405, 2671411-1417, 267293, 267294, 296 351, 29619007, 188218 A, 188218 R, 188218 XL
• CPC Class Codes: F16D 2065/1316 radially segmented
• CPC Class Codes: F16D 2065/1348 resilient
• CPC Class Codes: F16D 2065/1364 with relative movement axially
• CPC Class Codes: F16D 2065/1392 Connection elements
• CPC Class Codes: F16D 2200/0021 Steel
• CPC Class Codes: F16D 2200/0052 Carbon
• CPC Class Codes: F16D 65/123 comprising an annular disc secured to a hub member; Discs characterised by means for mounting
• CPC Class Codes: F16D 65/126 the material being of low mechanical strength, e.g. carbon, beryllium; Torque transmitting members therefor

Abstract

A brake disc assembly including a brake disk ring, a bell and a connecting mechanism between the brake disk ring and the bell, wherein the connecting mechanism includes a form-locked and/or force-locked connecting element in an axial direction DO of the brake disc ring, the connecting mechanism comprises a bushing for the connecting element and a distance element arranged between the brake disk ring and the bell, wherein the bushing includes a shoulder and a loss prevention, wherein the bushing further includes a region A1 provided for the brake disk ring and a region A2 provided for the bell, wherein the region A1 has an average expansion E4 in an direction perpendicular to DO and the region A2 has an average expansion E2 in an direction perpendicular to DO.

Claims

1. A brake disc assembly comprising:

a brake disk ring, a bell and a connecting mechanism between the brake disk ring and the bell, wherein the connecting mechanism comprises a form-locked and force-locked connecting element in an axial direction (DO) of the brake disc ring,

wherein the connecting mechanism comprises a bushing for the connecting element and a distance element arranged between the brake disk ring and the bell, wherein the bushing comprises a shoulder and a loss prevention, wherein the bushing further comprises a brake disc ring region (A1) provided for the brake disk ring and a bell region (A2) provided for the bell, wherein the brake disc ring region (A1) has an average brake disc ring region expansion (E4) in an direction perpendicular to the axial direction of the brake disc ring (DO) and the bell region (A2) has an average bell region expansion (E2) in an direction perpendicular to the axial direction of the brake disc ring (DO), and wherein the loss prevention has an average loss prevention expansion (E3) in an direction perpendicular to the axial direction of the brake disc ring (DO) and the shoulder has an average shoulder expansion (E1) in an direction perpendicular to the axial direction of the brake disc ring (DO), wherein the average bell region expansion (E2) is smaller than each of the average shoulder expansion (E1) and the average loss prevention expansion (E3), and wherein the height (H1) of the distance element is bigger than the height (H2) of the loss prevention, and wherein, in an assembled state, the loss prevention is neither in direct contact with the brake disk ring nor with the bell and the brake disk ring protrudes over the brake disc ring region (A1).

2. The brake disc assembly according to claim 1, wherein the distance element is formed as a plate having a homogeneous thickness defined by the height (H1) of the distance element and having a hole provided for the loss prevention.

3. The brake disc assembly according to claim 2, wherein the inner contour of the hole corresponds to the outer contour of the loss prevention and that both contours are designed in a way that the rotation of the distance element around the loss prevention is avoided by form-locking.

4. The brake disc assembly according to claim 1, wherein the changeover from the brake disc ring region expansion (E4) to the average loss prevention expansion (E3) at the bushing comprises a bevel.

5. The brake disc assembly according to claim 1, wherein the interface between the bell and the bushing at the bell region (A2) has play and wherein the interface between the brake disk ring and the bushing at the brake disc ring region (A1) has play.

6. The brake disc assembly according to claim 1, wherein the shape of the bushing at the brake disc ring region (A1) is cylindrical.

7. The brake disc assembly according to claim 1, wherein the outer contour of the cross section of the bushing perpendicular to the axial direction of the brake disc ring (DO) and at the bell region (A2) is rectangular.

8. The brake disc assembly according to claim 1, wherein the length of the bushing is 2 cm to 8 cm.

9. The brake disc assembly according to claim 1, wherein the height (H1) of the distance element is 2 mm to 6 mm, preferably 2.5 mm to 4 mm.