Brake lining of a disk brake and brake pad set

Patent metadata

Field	Value
Publication number	US-10927909-B2
Application number	US-201816112181-A
Country	US
Kind code	B2
Filing date	Aug 24, 2018
Priority date	Feb 26, 2016
Publication date	Feb 23, 2021
Grant date	Feb 23, 2021

Abstract

A brake pad for a disk brake for a utility vehicle, includes a pad backplate, which has a pad side with a frictional mass and an application side opposite the pad side. The pad side is provided with a structural arrangement having a plurality of recesses with elevations arranged therein. The structural arrangement of the pad side comprises structural elements which differ in shape and size.

First claim

What is claimed is:

1. A brake pad for a disk brake for a utility vehicle, comprising:
a pad backplate, which has a pad side with a frictional mass and an application side opposite the pad side, wherein
the pad side is provided with a structural arrangement having a plurality of recesses with elevations arranged therein, and
the structural arrangement of the pad side comprises structural elements which differ in shape and size, wherein
a first group of structural elements of the structural elements, which differ in shape and size, of the structural arrangement are arranged in two straight rows, which run parallel to a longitudinal direction of the pad backplate, and in an arrangement running around said rows, and
the first straight row has three hexagonal honeycomb structural elements next to one another, and in the second straight row lying thereunder, at least two further honeycomb structural elements are arranged in such a manner that a type of honeycomb structure results.

2. A brake pad for a disk brake of a utility vehicle, as claimed in claim 1 , wherein a form-fitting connection is provided to the frictional mass, and wherein the brake pad is configured for disk brakes with a braking torque of a maximum of 24 kNm and with a frictional surface of the brake pad of more than 160 cm2, in particular 164 cm2, and has a weight of the pad backplate of less than 1050 g, in particular 1000 g.

3. The brake pad as claimed in claim 1 , wherein the structural elements in the two straight rows and in the arrangement running around said rows are arranged in an arrangement which is symmetrical with respect to an axis which runs perpendicularly to the longitudinal direction of the pad backplate.

4. A brake pad for a disk brake of a utility vehicle, as claimed in claim 1 , wherein a form-fitting connection is provided to the frictional mass, and wherein the brake pad is configured for disk brakes with a braking torque of a maximum of 20 kNm and with a frictional surface of the brake pad of more than 155 cm2, in particular 161 cm2, and has a weight of the pad backplate of less than 1050 g, in particular 1000 g.

5. A brake pad for a disk brake of a utility vehicle, as claimed in claim 1 , wherein a form-fitting connection is provided to the frictional mass, and wherein the brake pad is configured for disk brakes with a braking torque of a maximum of 19 kNm and with a frictional surface of the brake pad of more than 150 cm2, in particular 154-161 cm2, and has a weight of the pad backplate of less than 1050 g, in particular 1000 g.

6. A brake pad for a disk brake of a utility vehicle, as claimed in claim 1 , wherein a form-fitting connection is provided to the frictional mass, and wherein the brake pad is configured for disk brakes with a braking torque of a maximum of 19 kNm and with a frictional surface of the brake pad of more than 140 cm2, in particular 142.5 cm2, and has a weight of the pad backplate of less than 1000 g, in particular 950 g.

7. A brake pad for a disk brake of a utility vehicle, as claimed in claim 1 , wherein a form-fitting connection is provided to the frictional mass, and wherein the brake pad is configured for disk brakes with a braking torque of a maximum of 13 kNm and with a frictional surface of the brake pad of more than 110 cm2, in particular 115 cm2, and has a weight of the pad backplate of less than 950 g, in particular 900 g.

8. A brake pad for a disk brake of a utility vehicle, as claimed in claim 1 , wherein a form-fitting connection is provided to the frictional mass, and wherein the brake pad is configured for disk brakes with a braking torque of a maximum of 30 kNm and with a frictional surface of the brake pad of more than 185 cm2, in particular 200.7 cm2, and has a weight of the pad backplate of less than 1250 g, in particular 1200 g.

9. A brake pad set for a disk brake of a utility vehicle, wherein the brake pad set comprises at least one application-side brake pad and at least one back-side brake pad, and the application-side brake pad is designed as claimed in claim 8 .

10. A brake pad set for a disk brake for a vehicle, wherein the two brake pads are designed as claimed in claim 8 .

11. The brake pad as claimed in claim 8 wherein the utility vehicle is a truck, a utility vehicle for transporting people, a utility vehicle for emergency personnel, forklift trucks, dumper trucks and/or a tractor.

12. The brake pad as claimed in claim 1 , wherein, in addition to the first group, further groups or individual structural elements of the structural elements, which differ in shape and size, of the structural arrangement are provided in edge regions, in the center and in support regions of the pad backplate.

13. The brake pad as claimed in claim 12 , wherein the structural arrangement also has structural elements of the structural elements, which differ in shape and size, with pentagonal, square and/or triangular shapes with rounded corners.

14. The brake pad as claimed in claim 13 , wherein the elevations are of circular, oval, triangular, or/and polygonal design, and have depressions.

15. The brake pad as claimed in claim 14 , wherein the elevations protrude from a base of a respective recess as far as the height of a respective edge or/and beyond the respective edge.

16. The brake pad as claimed in claim 15 , wherein the application side of the pad backplate has protruding pressure portions.

17. The brake pad as claimed in claim 16 , wherein the pressure portions protruding from the application side are connected by at least one web portion.

18. The brake pad as claimed in claim 17 , wherein the at least one web portion runs rectilinearly and parallel to a longitudinal direction of the pad backplate.

19. The brake pad as claimed in claim 18 , wherein the pressure portions are of circular ring-shaped design with a recess.

20. The brake pad as claimed in claim 19 , wherein the pressure portions are each divided into two semicircular annular segment pressure portions, in the center of which a circular depression is in each case formed, said depression communicating on both sides with a respective rectilinear depression between the associated annular segment pressure portions.

21. The brake pad as claimed in claim 20 , wherein the rectilinear depressions run in an imaginary straight connecting line in the longitudinal direction of the pad backplate through center points of the annular segment pressure portions.

22. The brake pad as claimed in claim 21 , wherein the application side has contact strip portions and supporting strip portions.

23. The brake pad as claimed in claim 22 , wherein the contact strip portions are connected to the pressure portions or to the annular segment pressure portions.

24. The brake pad as claimed in claim 23 , wherein the pad backplate is produced integrally, in particular monolithically, from a metallic casting.

25. The brake pad as claimed in claim 24 , wherein x is the depth of at least one recess of the structural arrangement, and y is the thickness of the pad backplate, wherein the ratio x/y is between 0.25 to 0.6.

26. The brake pad as claimed in claim 25 , wherein the width of at least 50% of all of the webs of the structural arrangement, in particular of at least 50% of all of the webs with a uniform length, is between 1.8 mm and 4 mm.

27. The brake pad as claimed in claim 26 , wherein the length of at least 50% of all of the webs o

Assignees

• Knorr Bremse Systeme Fuer Nutzfahrzeuge Gmbh

Inventors

• Dresen Dirk
• Schropp Josef
• Pahle Wolfgang

Classifications

• F16D65/092 Primary

  for axially-engaging brakes, e.g. disc brakes · CPC title

• F16D69/0408

  specially adapted for plane linings · CPC title

• F16D2069/004

  Profiled friction surfaces, e.g. grooves, dimples · CPC title

• F16D2069/0441

  Mechanical interlocking, e.g. roughened lining carrier, mating profiles on friction material and lining carrier · CPC title

• F16D65/095 Primary

  Pivots or supporting members therefor · CPC title