Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
  • B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
  • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
  • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
  • F16D69/02—Composition of linings ; Methods of manufacturing
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
  • F16D69/02—Composition of linings ; Methods of manufacturing
  • F16D69/025—Compositions based on an organic binder
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
  • B29K2105/25—Solid
  • B29K2105/251—Particles, powder or granules
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2503/00—Use of resin-bonded materials as filler
  • B29K2503/04—Inorganic materials

Definitions

• Designation Method for producing a brake pad and brake pad, in particular for a motor vehicle disc brake
• the invention relates to a method for producing a brake lining comprising a friction lining made of a friction material and a grid of an elastic filling material embedded in the friction material. Furthermore, the invention relates to a brake pad, in particular for a motor vehicle disc brake.
• the invention has for its object to improve the stability of the brake pad while minimizing torque fluctuations and to provide a particularly simple method for producing the brake pad available.
• the method according to the invention is characterized in that initially the grid is produced from the filling material and inserted into a friction lining pressing mold in such a way that a grid side terminates with a friction surface,
• the lattice structure of the filler can be optimally shaped in a separate molding process, so that the proposed grid pattern can be specified in a suitable strength and with precisely predetermined limitations.
• the cohesion between filler material and friction material is improved and evened out by the tangential and radial compressive forces acting on the filler grid.
• pressing the friction lining consisting of friction material with embedded elastic filling material comparatively large-scale material volumes are subjected to the pressing forces. Even complicated lattice structures can be easily formed and the entire structure ture of the press lining can be improved. Reworking is minimized due to the uniform pressing process.
• the friction lining has a pressing part made of a prefabricated Golfmaterialgitter and with its lattice struts at least laterally pressed friction material, wherein the lattice struts and the compressed with this friction material form a flush friction surface.
• Friction material and Golfmaterialgitter are pressed into a dimensionally stable unit and therefore have high stability and stability.
• the embedded grid of elastic filling material ensures excellent adaptation of the friction lining to unevenness of a brake disc, minimizes scratching noise and vibrations as well as secondary effects due to pedal pulsation and steering wheel vibrations.
• the shape, raster and structure of the filler grid can be adapted to the formation of the friction lining so that optimal functional properties of the entire friction lining are guaranteed.
• the filling material grid is produced by pressing the filling material into a mold and pre-hardening adapted to the intended thickness of the friction material.
• the friction material can be pressed via a vibration damping intermediate layer with the Greincter.
• the Greincter, the friction material and the intermediate layer are joined together to form a friction lining assembly.
• the filler material can predominantly be made of rubber or rubber substitutes, if necessary with the inclusion of abrasives and / or Abrasive exist. In principle, it is possible to use all conventional filling material compositions which can be shaped as filler lattices with elastic properties.
• Figure 1 is a view of an embodiment of a filler grid after its production by compression of the filling material in lattice form and pre-curing of the pressed Grematerialgitters;
• FIG. 2 shows a perspective view of a friction lining pressing mold, in which the prefabricated filler grid with the friction surface side is inserted downwards, before the remaining mold cavity is filled with the friction material;
• Figure 3 is a view of a finished brake pad for a disc brake of motor vehicles with a support plate and a friction lining, on the visible friction surface, the prefabricated Golfmaterialgitter aligned flush with the surrounding friction material in a plane.
• the curved webs 11 and 12 of the grating 1 are connected to each other via approximately radially extending webs 13, 14 and 15.
• the curved webs 11 and 12 have on both sides over the outer radial webs projecting ends whose end faces are adapted to the radial inner walls of the mold.
• the outer radial webs 13 and 15 each have an outwardly projecting end portion; the central radial web 14 has two end sections projecting beyond the adjacent curved webs 11 and 12, respectively. All projecting end portions of the radial webs 13-15 are adapted to the inner walls of the mold, so that the prefabricated grid structure 1 snugly fits with the end faces of the respective projecting web ends of the internal formation of the mold in the near-friction region.
• the prefabricated grid 1 is inserted into the press mold 2, as shown in FIG. 2, in such a way that a flat side of the grid 1 lies on the mold surface 21 forming the rubbing surface. It is, as stated above, the location of
• the finished brake lining 3 shows the finished brake lining 3 after demoulding and gluing of the friction lining 4 with a carrier plate 5, which is arranged on the side of the friction lining 4 facing away from the friction surface, if necessary with the interposition of a vibration-damping intermediate layer.
• the finished friction lining on the friction side has a friction surface made of friction material 41, which is interrupted in a grid-like manner by the prefabricated filler grid 1.
• the respective flat sides of friction material 41 and filling material extend flush in a plane, wherein the boundaries of filling material and friction material are closely and seamlessly in contact on all sides.
• the friction lining described ensures a stable bond between the adjacent material structures and thus optimum stability and reduction of the torque fluctuations occurring during the braking process due to the elastic properties of the filler material lattice 1.
• the amount of coverage of the filler grid with friction material can be adjusted according to the respective requirements. The same applies to the thickness, number and course of the grid bars. In deviation from the embodiment described above, the friction surface can also be curved and / or interrupted as needed.
• the Grematerialgitter will be adapted to the mold usually; the same applies to the friction surfaces of the finished friction lining and the friction surface facing side of the filler grid.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Braking Arrangements (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=38283695

Family Applications (1)

Country Status (5)

Families Citing this family (7)

Citations (1)

Family Cites Families (13)

• 2006
  • 2006-06-07 DE DE102006026802A patent/DE102006026802B3/de not_active Expired - Fee Related
• 2007
  • 2007-05-07 EP EP07724916A patent/EP2024157A1/de not_active Withdrawn
  • 2007-05-07 JP JP2009513559A patent/JP5004062B2/ja not_active Expired - Fee Related
  • 2007-05-07 WO PCT/EP2007/003992 patent/WO2007140852A1/de not_active Ceased
  • 2007-05-07 US US12/302,930 patent/US20090145703A1/en not_active Abandoned

Patent Citations (1)

Non-Patent Citations (1)

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