WO2019238657A1 - Frein à disque doté d'un dispositif de rappel et jeu de patins de frein d'un tel frein à disque - Google Patents

Frein à disque doté d'un dispositif de rappel et jeu de patins de frein d'un tel frein à disque Download PDF

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Publication number
WO2019238657A1
WO2019238657A1 PCT/EP2019/065175 EP2019065175W WO2019238657A1 WO 2019238657 A1 WO2019238657 A1 WO 2019238657A1 EP 2019065175 W EP2019065175 W EP 2019065175W WO 2019238657 A1 WO2019238657 A1 WO 2019238657A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
disc
section
carrier
disc brake
Prior art date
Application number
PCT/EP2019/065175
Other languages
German (de)
English (en)
Inventor
Matthias Adelung
Christian Brandl
Paul Haberl-Günthner
Markus MOLNAR
Martin PLEINTINGER
Johannes FARKAS
Original Assignee
Knorr-Bremse Systeme für Nutzfahrzeuge GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Knorr-Bremse Systeme für Nutzfahrzeuge GmbH filed Critical Knorr-Bremse Systeme für Nutzfahrzeuge GmbH
Publication of WO2019238657A1 publication Critical patent/WO2019238657A1/fr

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Classifications

    • 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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
    • 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
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • 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
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
    • F16D65/0973—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces
    • F16D65/0974—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces acting on or in the vicinity of the pad rim in a direction substantially transverse to the brake disc axis
    • F16D65/0975—Springs made from wire
    • 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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/0008—Brake supports
    • 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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/0016—Brake calipers
    • F16D2055/0029—Retraction devices
    • 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
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/134—Connection
    • F16D2065/1392—Connection elements
    • F16D2065/1396—Ancillary resilient elements, e.g. anti-rattle or retraction springs
    • 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
    • F16D65/00—Parts or details
    • F16D65/005—Components of axially engaging brakes not otherwise provided for
    • F16D65/0056—Brake supports

Definitions

  • the invention relates to a disc brake with a reset device according to the preamble of claim 1.
  • the invention also relates to a brake pad set of such a disc brake.
  • Disc brakes are now standard equipment for heavy commercial vehicles. Such disc brakes can be provided with so-called back adjusting devices.
  • DE 10 2016 104 970 A1 describes a disc brake for a commercial vehicle, with a brake caliper overlapping a brake disc and designed as a sliding caliper, which is fastened to a stationary brake carrier and has a central opening above the brake disc.
  • the brake disc comprises two brake pads arranged in the brake caliper, which can be moved in opposite directions, each having a pad carrier and having a friction lining fastened thereon, one of which on the action side can be pressed against the brake disk by means of an application device via at least one brake plunger, and at least one resetting device with which the Brake caliper after a brake-related shifting and releasing of the brake is traceable, the remindstellein direction having an attack on the opposite brake pads, counteracting the respective application direction acting spreader with the respective pad backing resilient spreader elements.
  • the spreader is arranged in the central opening, the spreading elements directly or indirectly outside the friction linings on one side in the central area or at least two mutually spaced abutment areas of the brake pads, the abutment areas each having a bearing surface and a bearing surface on which Chen the spreading elements are movably arranged.
  • the invention is based on the further object of specifying a brake pad set for such a disc brake.
  • a disc brake according to the invention for a commercial vehicle with a brake caliper overlapping a brake disc, designed as a sliding caliper, which is fastened to a stationary brake carrier and has a central opening above the brake disc, two brake pads arranged in the brake caliper, which can be moved against each other, and one mounted thereon Brake linings having friction linings, of which an action-side or application-side brake lining can be pressed against the brake disk by means of an application device, and at least one resetting device with which the brake linings can be traced and the brake caliper can be centered after a brake-related shifting and releasing of the disk brake, the resetting device holding bracket and has spring arms attached to the retaining bracket, the retaining bracket being fastened to two brake carrier horns of a lining shaft of the brake lining of the brake carrier on the application side, and wherein the spring arms on the respective pad carrier plate of the opposing brake pads against the opposite application direction.
  • the bracket is attached to the two brake horns via
  • the hood element protects the soft cast material of the brake carrier in the area of the carrier horns against digging in due to the pretension and vibration of the pad retaining spring on the brake pad on the application side.
  • the hood element protects the horn from corrosion and dirt. This also has the advantage of a simple and fast Monta ge the reset device. In addition, the reliability of the return device for preventing or at least significantly reducing residual grinding torques is increased.
  • the hood element has a front wall, a rear wall or two rear wall sections, two side walls, a cover wall and at least one holding section for an end section of the holding bracket.
  • the at least one holding section is arranged on one of the walls. The result is a compact component.
  • the at least one holding section has an inner contour which corresponds to an outer contour of the end section of the holding bracket. This creates a simple receptacle for the end section.
  • the bracket can be easily installed. No tools are required.
  • the respective end section of the holding bracket has at least one circumferential groove, which in the installed state is in engagement with the at least one holding section. This results in an advantageous axial securing of the end section on the hood element.
  • the hood element can have a tab which is arranged below the at least one holding section and advantageously forms a support for one end of the end section of the holding bracket, which advantageously allows a fixed axial position of the holding bracket.
  • the hood element has an interior, which cuts through the front wall, the rear wall or the two rear wall sections, the two side walls and the one top wall is fixed.
  • a hood element is attached to a head section of a respective brake carrier horn in the installed state, the head section of the respective brake carrier horn being received in the interior of the respective hood element. This results in an advantageously space-saving construction.
  • the respective Bremsträ gerhorn has a bearing surface, which is arranged ben element at least one holding portion in the installed state of the Hau and forms a support for one end of the end portion of the bracket.
  • the respective brake carrier horn can have a formation which, together with the at least one holding section, and whose inner contour forms a receptacle for the respective end section of the holding bracket.
  • the spring arms have end sections which are each bent downward and, in the installed state, are received in a receptacle on each end region of a lining carrier plate from the top.
  • the receptacles can be arranged at different locations on the lining carrier plates, which results in an advantageous, versatile possibility of adaptation to different brakes.
  • a receptacle can be arranged between a spring hook and a side end of the lining carrier plate.
  • a receptacle is arranged on the side of a spring hook, which faces the center of the brake pad 4.
  • a receptacle can also be arranged laterally on a spring hook on its side, which points away from the brake disc.
  • the spring arms have end sections which interact with undercuts of spring hooks in such a way that that the end sections rest on a contact surface of the respective spring hook and on a contact surface of an underside of a projection of the respective spring hook and are each slidably guided on the spring hook in a longitudinal direction of the end sections, the undercuts of the spring hooks pointing towards the brake disk.
  • the spring arms may have end portions which face outwards, i.e. are facing away from the brake disc, are bent, and are pivotably engaged with a respective spring hook in a respective receptacle. This results in an advantageously simple fixation of the spring arms to the brake pads.
  • FIG. 1 shows a schematic, perspective partial view of a disc brake with a reset device according to the prior art
  • Fig. 2 is a schematic, perspective partial view of a disc brake according to the invention with an embodiment example of a hood element;
  • FIG. 3-5 schematic, perspective representations of a variant of the hood element according to Fig. 2;
  • Fig. 6 is a schematic, perspective view of a wide ren variant of the hood element of FIG. 2; 7-8 are schematic, perspective representations of spring arms in cooperation with spring hooks;
  • Fig. 9 is a schematic, perspective view of spring arms in connection with lining carrier plates
  • Fig. 10 is a schematic, perspective partial sectional view of a
  • Fig. 1 1 a further schematic, perspective view of
  • Fig. 12 is a schematic, perspective partial sectional view of a
  • Fig. 1 shows a schematic, perspective partial view of a disc brake 1 with a reset device 10 according to the prior art.
  • Coordinates x, y, z serve for easier orientation.
  • the x coordinate runs in the direction of travel of a vehicle, not shown, to which the disc brake 1 is assigned.
  • the y coordinate is parallel to a brake disc axis of rotation, and the z coordinate indicates a flea.
  • the disc brake 1 comprises a brake carrier 2 (see FIG. 2), a brake caliper 3, two brake pads 4, 4 ′, a brake disc 8 (see FIG. 7) and a reset device 10.
  • the disc brake 1 is fixed via the brake carrier 2 on a vehicle to which the disc brake 1 is assigned, e.g. attached to an axle flange (not shown).
  • the brake caliper 3 overlaps the brake disc 8 and is mounted on the brake carrier 2 such that it can be moved axially in the direction of the axis of rotation of the brake disc, which is not shown but is easily imaginable and extends in the y direction.
  • the brake caliper 3 is shown on ten guide rails mounted, which are connected to the stationary brake carrier 2 held on the vehicle.
  • the brake caliper 3 comprises an application section 3a, a caliper and two tension struts 3c.
  • the saddle back 3b is connected to the application section 3a at one end each with a tension strut 3c.
  • Reference symbols with an apostrophe indicate components which are arranged on a side of the brake disk which faces the back of the caliper 3b.
  • the brake pad 4 which faces the application section 3a, is referred to as the brake pad 4 on the application side, and the other brake pad 4 ', which is arranged on the caliper back 3b, is called the rear-side or also reaction-side brake pad 4'.
  • the application section 3a has an interior in which an application device, not shown, of the disc brake 1 is arranged.
  • the application section 3a, the saddle back 3b and the tension struts 3c define a central opening 9 between them which spans the brake disc.
  • each brake lining 4, 4 ′′ has a lining carrier plate 5, 5 ′′ and a friction lining 6, 6 ′′ fastened to it on the side facing the brake disk, which is pressed against the brake disk 8 in operation, that is to say during braking.
  • the brake pads 4, 4 ' can be reached through the central opening 9 for a change and for maintenance. They can be inserted into and removed from their associated covering shafts through this central opening 9.
  • a pad retainer is arranged over the brake pads 4, 4 'in the central transverse direction of the opening 9 or in the y direction between the application section 3a and the saddle back 3b.
  • Spring hooks 13, 13 ' which protrude from the upper sides of the lining carrier plates 5, 5' in their end regions, engage slot openings 7a, 7'a, 7b, 7'b of the respective lining retaining spring 13, 13 '.
  • the spring hooks 13, 13 ' protrude through the slot openings 7a, 7'a, 7b, 7'b.
  • the resetting device 10 comprises a bracket 1 1 with two legs 1 1 a, on each of which an end section 11 b is attached, and two pairs of spring arms 12 attached to the bracket 1 1, which are also referred to as pressure arms.
  • the bracket 1 1 is formed with a central part spanning the brake disc 8 and adjoining it on both sides with two holding arms 1 1 a in the form of a “C”. At the free ends of the two holding arms 1 1 a, an end section 11 b, which is angled toward the brake support horns 2a, 2b, is brought to each.
  • the two pairs of spring arms 12 are slidably mounted on a straight central section of the retaining bracket 11.
  • Each end of a spring arm 12 of a pair engages or cooperates with a respective end section 12a or with opposite end sections of the lining carrier plates 5, 5 'of the brake linings 4, 4'.
  • the points of engagement or interaction are designated here as attachment points with the capital letters C, D and C ’, D’.
  • the two brake pads 4, 4 'lying opposite one another are released by the resetting device 10 from the brake disk by means of the resilient, tensioned spring arms 12 so that the brake disk 8 runs freely with respect to the brake pads 4, 4'. This prevents or at least considerably reduces a residual grinding moment.
  • the resetting device 10 thus has the two main functions of resetting the brake pads 4, 4 ′ and centering the brake caliper 3.
  • the resetting device 10 engages here in the upper region of the lining carrier plates 5, 5 'of the opposing brake linings 4, 4' with the spring arms 12 acting in the same way against the application direction, which runs in the y direction. In this way, the brake pads 4, 4 'in their upper areas with restoring forces from the restoring device 10 are applied.
  • the brake caliper 3 is centered over the rear brake pad 4 ′′ thus reset, since the holding bracket 11 of the reset device 10 is fixed in place on the brake carrier 2.
  • This fixed attachment of the bracket 1 1 in the fixed mounting points A and B on the brake carrier 2 is inventively te 20 formed by Haubenelemen.
  • the bracket is in turn attached to the hood elements 20.
  • the hood elements 20 are each attached to a stationary component, here on the brake carrier 2.
  • FIGS. 2 to 12 only the left (s) area (s) of the disc brake 1 is shown. Of course, the descriptions also apply to the right (partial) area (s).
  • FIG. 2 is a schematic, perspective partial view of a disc brake 1 according to the Invention with an embodiment of a hood element 20 is shown.
  • the hood element 20 comprises a front wall 21, a rear wall 22 or two rear wall sections 22, two side walls 23, a top wall 24 and at least one holding section 25.
  • the front wall 21 is designed as a rectangular plate which, when assembled, lies essentially in a yz plane. Longitudinal edges of the front wall 21 run in the y direction, side edges lie in the z direction.
  • a side wall 23 is attached to each side edge of the front wall 21.
  • the rear wall 22 is parallel to the front wall 21 and is connected to the other side edges of the side walls 23. It is also possible for the rear wall 22 not to be continuous, but rather to consist of two individual ones Sections exists. Each such section is attached to a respective free side edge of a side wall 23. This can be realized, for example, by bending / edging a side edge of the side walls 23.
  • the side walls 23 are each attached to the front wall 21 at an angle of more than 90 °, the rear wall 22 each including an angle of less than 90 ° with the side walls 23. In this way, a trapezoidal cross section of the hood element 20 results in an x-y plane.
  • the top wall 24 is connected to an upper longitudinal edge of the front wall 21 and lies in an x-y plane.
  • the cover wall 24 covers an inner space, which is defined by the front wall 21, the side walls 23 and the rear wall 22.
  • two holding sections 25 are arranged one above the other on the front wall 21 symmetrically to a center line which runs in the z direction.
  • the holding sections 25 are formed here in the form of semicircular ring clamps, which are arranged coaxially to one another and each have an inner contour 25 a.
  • This inner contour 25a forms a receptacle for an end section 11b of the holding bracket 11.
  • the cross section or an outer contour of the end section 11b is circular.
  • Other cross sections, e.g. square, oval and the like are of course also possible.
  • the inner contours 25a of the holding sections 25 correspond to the respective cross section or the respective outer contour of the end section 11b.
  • the bracket 1 1 is made of a wire with a circular cross-section.
  • the spring arms 12 also have a wire with a circular cross section. Of course, other cross-sectional shapes are also possible.
  • the hood element 20 can be connected to one another, e.g. in the case of a metallic material by welding.
  • the hood element 20 is designed as a one-piece stamped and bent part.
  • hood elements 20 In each case one of two hood elements 20 is placed on a head section of a stationary brake member horn 2a, 2b of the brake carrier 2 on the tensioning side. set.
  • the respective head section in the interior, which is defined by the front wall 21, the side walls 23 and the rear wall 22 of the hood element 20.
  • the two hood elements 20 are firmly connected to the respective brake carrier horn 2a, 2b. This can be achieved, for example, by clamping, gluing, welding.
  • the respective front wall 21 faces outwards, i.e. the rear walls 22 and the rear wall sections each face the brake lining 4 and thus face each other.
  • FIG. 2 also shows a receptacle 14 of the fastening point C for an end section 12a of a spring arm 12.
  • This receptacle 14 is in the pad carrier plate 5 of the brake pad 4, e.g. molded as a hole (blind hole or through hole).
  • the receptacle 14 is in this example between the spring hook 13 and the lateral end of the pad carrier plate 5 below the pad retaining spring 7.
  • Access to the receiving 14 is possible in that the slot opening 7a for the spring hook 13 in the longitudinal direction of the pad retaining spring 7 in the direction is widened towards the spring end towards an elongated and widened slot opening 7b.
  • This enlarged slot opening 7b is arranged above the receptacle 14.
  • the end of the pad retaining spring 7 here lies above the top wall 24 of the hood element 20.
  • the pad retaining spring 7 pressed by the pad retaining bracket onto the pad carrier plate 5 can additionally press the hood element 20 onto the brake carrier horn 2a, 2b and form a type of fuse.
  • the head section of the brake carrier horn 2a, 2b can be adapted to the shape of the hood element 20 by machining or shaping during manufacture. This also applies to the other variants of the Haubenele element 20, which will be described below.
  • a support surface 30 can also be formed for supporting the end of the end section 11b of the holding bracket 11 (see also FIG. 5).
  • FIG. 2 3-5 show schematic, perspective representations of a variant of the hood element 20 according to FIG. 2.
  • 3 and 4 show the hood element 20 from different sides.
  • 5 shows the variant of the hood element 20 together with the built-in end sections 11b and 12a of the resetting device 10.
  • the front wall 21 is provided with a recess 26 behind the holding sections 25.
  • This recess 26 extends in the center line across the entire front wall 21 in the z direction and then extends further than a circular section through the top wall 24.
  • the head portion of the associated brake carrier horn 2a, 2b is in the region of this recess 26 with a the recess 26 corresponding recess 2c provided.
  • the formation 2c also extends in the z direction and has an approximately semicircular cross section.
  • top wall 24 in this variant is extended on the side facing the brake disk 8 with a lateral projection 24a.
  • Another over stood, which points to the brake pad 4 is arranged on the longitudinal side of the top wall 24.
  • Fig. 3 shows another receptacle 15 of the attachment point C for the end portion 12a of the spring arm 12.
  • This receptacle 15 is also in the pad carrier plate 5 of the brake pad 4, e.g. molded as a hole (blind hole or through hole).
  • the receptacle 15 is located on the side of the spring hook 13 which faces the center of the brake lining 4.
  • the end section 12a, 12’a of the spring arm 12, 12 ′′ may or may not rest with its end on the bottom of the blind hole.
  • the end of the pad retaining spring 7 lies partly over the top wall 24 of the hood element 20.
  • the end section 12a of the spring arm 12 inserted in the receptacle 15 can be seen at the fastening point C.
  • the receptacle 15 is located below the pad retaining spring 7, which also here has the expanded slot opening 7b described above above the receptacle 15.
  • the slot opening 7b here points towards the center of the brake lining 4.
  • the end section 11b of the holding bracket 11 is inserted at the fastening point A into the receptacle formed from the indentation 26 in the brake carrier horn 2a and the holding sections 25 and the inner contour 25a.
  • the end of the end section 11b lies on the contact surface 30 of the brake carrier horn 2a.
  • This contact surface 30 is located under the inner contour 25a and the indentation 26. 5 that the end section 11b of the retaining bracket 11 has circumferential grooves 11c which engage with the retaining sections 25 of the hood element 20 in the installed state. In this way, the end portion 1 1 b between the indentation 25 and the
  • Fig. 6 shows a schematic, perspective view of another Va riante of the hood element 20 of FIG. 2.
  • the hood element 20 has the holding sections 25 on a side wall 23.
  • This side wall 23 faces away from the brake disc 8 and faces the application section 3a of the brake caliper 3.
  • a tab 29 is attached to the side wall 23. The tab 29 serves as a bearing surface for the end of the end section 11b of the bracket 11, as can easily be seen in FIG.
  • the side walls 23 and the top wall 24 are narrower in the x direction than in the embodiment according to FIG. 2.
  • the front wall 21 is oval
  • recess 27 which extends from the lower longitudinal edge to approximately over three quarters of the length of the front wall 21 symmetrically to the center line of the front wall in the z direction.
  • the recess 27 tapers from the bottom to the top.
  • An elongated projection 28 is formed between this recess 27 and the upper longitudinal edge of the front wall 21, which protrudes into the interior of the hood element 20. When the hood element 20 is put on, the projection 28 acts as a clamping element between the brake carrier horn 2a and the hood element 20.
  • the oval recess 27 of the front wall 21 allows that a
  • Hood element 20 on the head portion of the brake carrier horn 2a can extend through the recess 27. It is thus possible for the brake carrier horn 2a to remain unprocessed in this area.
  • the lateral projection 24a of the top wall 24 in this further variant is longer than in the other versions.
  • the end section 11b of the holding bracket 11 is provided with the circumferential grooves 11c described above.
  • FIG. 5 shows the end section 12a of the spring arm 12 inserted in the receptacle 14 at the fastening point C.
  • the arrangement of the receptacle 14 according to FIG. 2 is shown here.
  • FIG. 7 and 8 show schematic, perspective representations of spring arms 12, 12 'in cooperation with spring hooks 13, 13'.
  • the contact surface 13c faces the brake disc 8.
  • the contact surface 13c lies in an x-z plane.
  • the adjoining end section 12a of the spring arm 12 exerts a compressive force in the positive y direction on the spring hook 13 in order to press the brake pad 4 away from the brake disc 8.
  • End section 12a guided such that its movement is blocked in the positive z direction.
  • the end section 12a is thus in its longitudinal direction
  • the projection 13 is attached symmetrically to the center line of the spring hook 13 in the z direction and has about a quarter of the length of the spring hook 13 in the x direction.
  • Slot openings 7b are provided with a recess 7c which communicates with the contour of the projection 13a.
  • the end section 12'a of the spring arm 12' is also located on a contact surface 13'c of the spring hook 13 'and on a contact surface of an underside of a projection 13 'a at attachment point C'.
  • Contact surface 13’c faces the brake disc 8 and lies in an x-z plane.
  • the adjoining end section 12’a of the spring arm 12 ′′ exerts a compressive force in the negative y-direction on the spring hook 13 ’in order to press the brake lining 4 ′′ away from the brake disc 8.
  • the projection 13’a extends over the entire length of the spring hook 13’ in the x direction. By means of the projection 13’a, the end section 12’a is guided such that its movement in the positive z direction is blocked. The end section 12’a is thus guided in the longitudinal direction on the spring hook 13’.
  • the end sections 12a, 12’a of the spring arms 12 of the example according to FIG. 8 are not bent downwards in the z-direction as in the examples shown above, but outwards, i.e. facing away from the brake disc 8, bent and run in a substantially same plane as the spring arms 12, 12 '.
  • FIG. 9 shows a schematic, perspective illustration of spring arms 12, 12 'in connection with lining carrier plates 5, 5' in two examples.
  • FIG. 9 there is the receptacle 14 with the end section 12a of the spring arm 12 as already shown above in FIGS. 2 and 6 between the spring hook 13 and the lateral end of the lining carrier plate 5, the lining holding spring 7 being the has enlarged slot opening 7b.
  • the receptacle 14 'with the end section 12'a of the spring arm 12' is also between the spring hook 13 'and the lateral end of the lining carrier plate 5', but in a shoulder 5'a, which is below an upper side 5'b of the lining carrier plate 5 'is arranged in the lateral end region.
  • the receptacle 14 ' is not hindered by the pad retaining spring 7', which therefore also has no enlarged slot openings 7'b.
  • 10 shows an enlarged, schematic, partial sectional view of the receptacle 14, 14 'in the lining carrier plate 5, 5'.
  • 14 ' is a hole with a circular cross-section fits the cross-section of the end portion 12a, 12'a of the spring arm 12, 12'.
  • This bore of the receptacle 14, 14 ' can be a blind bore as shown with a bottom 14a, 14'a or a through bore.
  • the end section 12a, 12'a of the spring arm 12, 12 ' may or may not rest with its end on the bottom 14a, 14'a.
  • FIG. 11 shows a further schematic, perspective illustration of spring arms 12, 12 ′′ in connection with lining carrier plates 5, 5 ’.
  • 12 shows a schematic, perspective partial sectional view of a receptacle 17, 17 'in a lining carrier plate 5, 5'.
  • a receptacle 17 ′′ with the end section 12’a of the spring arm 12 ′′ is arranged laterally on the spring hook 13 ’on its side 13’d, which faces away from the brake disk 8. Since the pad retaining spring 7 'is arranged above the receptacle 17, 17', a slot opening 7'a widened in the y direction is provided.
  • Fig. 12 shows this enlarged in a partial sectional view.
  • the end section of the lining carrier plate 5, 5 ' is shown here as paragraph 5a, 5'a.
  • the receptacle 17, 17 ' is here a bore with a circular cross section adapted to the cross section of the end section 12a, 12'a of the spring arm 12, 12'.
  • This bore of the receptacle 17, 17 ' can be a blind hole as shown with a bottom 17a, 17'a or a through hole.
  • the end section 12a, 12’a of the spring arm 12, 12 ′′ may or may not rest with its end on the bottom 17a, 17’a.
  • Brake pad 4 is presupposed in the vertical direction upwards by assuming a 12:00 o'clock installation position and held by a positive connection between the brake pad 4 on the application side and the brake carrier 2.
  • the cover plate 24 of the Flauben element 20 can consist of short sections which are formed as bent / folded upper edges of the front wall 21 or / and the side walls 23 or / and the rear wall 22 or rear wall sections.

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

Abstract

La présente invention concerne un frein à disque pour un véhicule utilitaire comprenant : un étrier de frein, conçu sous la forme d'un étrier coulissant, qui est à cheval sur le disque de frein, qui est fixé à un support de frein (2) fixe et qui comporte une ouverture centrale au-dessus du disque de frein ; deux patins de frein (4), agencés dans l'étrier de frein, mobiles en sens opposé, comportant respectivement une plaque de support de patin (5) et un revêtement de friction (6) monté sur ladite plaque de support de patin, au moyen duquel un patin de frein (4), côté action ou côté application de tension, peut être pressé, au moyen d'un dispositif d'application de tension, contre le disque de frein ; ainsi qu'au moins un dispositif de rappel, au moyen duquel les patins de frein (4), après un déplacement dû au freinage et une libération du frein à disque, peuvent être renvoyés et l'étrier peut être centré, le dispositif de rappel comportant une boucle de retenue et des bras à ressort montés sur ladite boucle de retenue, la boucle de retenue étant fixée à deux cornes de support de frein (2a) d'un logement de patin du patin de frein côté application de tension du support de frein, et les bras à ressort venant en prise avec la plaque de support de patin (5) respective, opposée aux patins de frein (4), à l'encontre le sens d'application de tension respectif. L'étrier de retenue est fixé aux deux cornes du support de frein (2a) à l'aide d'un élément de capot (20) respectif. c
PCT/EP2019/065175 2018-06-15 2019-06-11 Frein à disque doté d'un dispositif de rappel et jeu de patins de frein d'un tel frein à disque WO2019238657A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018114396.6A DE102018114396A1 (de) 2018-06-15 2018-06-15 Scheibenbremse mit einer Rückstelleinrichtung und Bremsbelagsatz einer solchen Scheibenbremse
DE102018114396.6 2018-06-15

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WO2019238657A1 true WO2019238657A1 (fr) 2019-12-19

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Publication number Priority date Publication date Assignee Title
US11143255B2 (en) 2019-05-09 2021-10-12 Arvinmeritor Technology, Llc Brake assembly having a retraction spring and method of assembly
DE102019131840A1 (de) * 2019-11-25 2021-05-27 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Scheibenbremse für ein Nutzfahrzeug
EP3954919A1 (fr) 2020-08-11 2022-02-16 Meritor Heavy Vehicle Braking Systems (UK) Limited Ensemble frein
US11649864B2 (en) 2021-06-11 2023-05-16 Arvinmeritor Technology, Llc Disc brake assembly having a sensor assembly attached to a retraction spring
EP4386230A1 (fr) * 2022-12-14 2024-06-19 KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH Dispositif d'écartement pour libération active d'étrier

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016104970A1 (de) 2015-06-15 2016-12-15 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Scheibenbremse für ein Nutzfahrzeug und Bremsbelagsatz
WO2017198467A1 (fr) * 2016-05-20 2017-11-23 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Frein à disque pour véhicule utilitaire, garniture de frein et jeu de garnitures de frein

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016104970A1 (de) 2015-06-15 2016-12-15 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Scheibenbremse für ein Nutzfahrzeug und Bremsbelagsatz
WO2016202778A1 (fr) * 2015-06-15 2016-12-22 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Frein à disque pour véhicule utilitaire et jeu de garnitures de frein
WO2017198467A1 (fr) * 2016-05-20 2017-11-23 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Frein à disque pour véhicule utilitaire, garniture de frein et jeu de garnitures de frein

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