EP4409153A1 - Scheibenbremse für ein nutzfahrzeug - Google Patents
Scheibenbremse für ein nutzfahrzeugInfo
- Publication number
- EP4409153A1 EP4409153A1 EP22782544.5A EP22782544A EP4409153A1 EP 4409153 A1 EP4409153 A1 EP 4409153A1 EP 22782544 A EP22782544 A EP 22782544A EP 4409153 A1 EP4409153 A1 EP 4409153A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- brake
- disc
- carrier plate
- pad
- lining
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
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
- F16D55/2265—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 the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
- F16D55/227—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 the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing by two or more pins
-
- 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
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for 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
- 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
- F16D55/2255—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 pivoted
-
- 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
- F16D65/0068—Brake calipers
-
- 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
-
- 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
-
- 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
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/58—Mechanical mechanisms transmitting linear movement
- F16D2125/70—Rods
Definitions
- the invention relates to a disc brake according to the preamble of claim 1 .
- the brake caliper also referred to as a sliding caliper, being mounted so as to be axially displaceable in relation to a brake disc by means of guide rails which are fastened to a vehicle-side brake carrier.
- the guide rails are usually fastened to the brake carrier by screwing and guided in sliding bushings of the brake caliper in such a way that the latter is axially displaced during braking in relation to a brake disc held non-rotatably on an axle of the vehicle.
- Such moments arise, for example, in the case of a strongly off-centre point of application of force on the brake caliper, as can occur in ferry operations.
- the weight of a brake cylinder held on the brake caliper also contributes to the unequal loading of the action-side brake pad, which occurs in particular with an application device that has a central brake plunger, with this brake plunger being aligned axially parallel to the axis of rotation of the brake disc.
- the oblique wear also means that at least the action-side brake lining has to be replaced prematurely, since the inlet-side area of the brake lining has already reached a permissible wear limit when the opposite, ie outlet-side area has not yet reached the wear limit.
- the invention is based on the object of further developing a disc brake of the generic type in such a way that the service life is increased and thus the operating costs are reduced and the functional reliability is improved.
- this constructive configuration ensures that the application-side brake pad is pressed against the brake disc in a distributed manner over the friction surface with the same surface pressure in the event of braking.
- the sum of the effective moments is positively influenced and a homogeneous pad wear is achieved.
- the contact area between the brake piston and the lining carrier plate, which runs in a sloping manner can be realized in different ways.
- the back of the pad carrier plate facing the brake plunger or the pressure piece can be designed at least partially obliquely, either as a depression or over the entire surface, with the thickness of the pad carrier plate decreasing towards the inlet side of the brake disc.
- the pressure piece can also be designed with its contact surface facing the lining carrier plate inclined in the direction of the inlet side, ie this contact side runs at an acute angle to the longitudinal axis of the brake plunger, deviating from a right angle.
- the partial inclination of the pad carrier plate in the contact area with the pressure piece is preferred, it being possible for the contact surface to be twisted with its direction of inclination at an acute angle to a longitudinal axis of the brake pad. As a result, in addition to avoiding tangential oblique wear of the brake lining, radial oblique wear is also prevented.
- This radial oblique wear results from the dead weight of the clamping device, which can act in different directions depending on the mounting position on the vehicle. Likewise, different relative speeds between the inner and outer areas of the brake pad can lead to radial oblique wear.
- the pad carrier plate is made of cast iron, preferably spheroidal graphite iron
- the configuration of the pad carrier plate according to the invention can be produced particularly easily.
- the invention can also be implemented with disc brakes that are already in use, since only the brake lining on the application side with the inclined contact surface has to be replaced.
- the invention can also be used in an existing system by replacing the pressure piece, in particular when changing the brake pads come into use.
- the angle of inclination of the contact area is preferably ⁇ 5°, preferably 0.5° to 5°, particularly preferably 1°, relative to the side of the pad carrier plate assigned to the brake pad.
- FIG. 1 shows a disc brake according to the prior art in a partially sectioned plan view
- FIGS. 2 and 3 each show an exemplary embodiment of the invention in a sectional plan view
- FIG. 4 shows a brake pad according to the invention in a perspective view
- FIG. 5 shows another exemplary embodiment of a brake pad according to the invention in a rear view.
- a disc brake according to the prior art is shown in a schematic representation in FIG are.
- the direction of rotation of the brake disc 2 when driving forward is indicated by an arrow.
- the brake pad 3 on the application side is first pressed against the brake disc 2 by means of an application device 8, while the brake pad 3 on the reaction side is then pressed against the brake disc 2 due to the reaction forces and the moving brake caliper 1 being carried along.
- Each brake lining 3 consists of a lining carrier plate 11 and a friction lining 12 attached thereto, which makes contact with the brake disc 2 when braking.
- a pad retaining spring 9 is fastened to each of the pad carrier plates 11 and, in cooperation with a retaining bracket 10 , holds the brake pads 3 under pretension in a brake shaft of the brake caliper 1 or a brake carrier 14 on the vehicle.
- the brake caliper 1 Relative to the axis of rotation of the brake disc 2, the brake caliper 1 is mounted so that it can move axially on guide rails 15, which are connected to the brake carrier 14.
- the application device 8 has a brake plunger 4 which is arranged centrally and can be pressed axially displaceably against the brake lining 3 on the application side via a brake lever 13 , the brake lever 13 resting on the brake plunger 4 via a bearing ball.
- the brake plunger 4 consists of a threaded spindle 6, which is connected to an adjustment device 5 for compensating for a clearance, as well as an adjusting spindle 7 designed as a threaded sleeve, which engages with an internal thread in an external thread of the threaded spindle 6 and which with its brake pad carrier plate 11 of the brake application side Brake pad 3 facing end face is firmly connected to a pressure piece 16 which rests secured against the pad carrier plate 11 in the direction of rotation, so that the adjusting spindle 7 is held twisted test.
- a part of the disc brake is shown in a schematic view in each of Figures 2 and 3, specifically the brake pad 3 on the application side, the brake disc 2 contacted by it in the event of braking, and the brake plunger 4, with the adjusting spindle 7, on the spindle 7 facing the brake pad 3 End of the pressure piece 16 is connected in such a way that it is twisted relative to the brake pad 3, but the adjusting spindle 7 is rotatable.
- the contact area between the brake plunger 4 and the lining carrier plate 11 is inclined towards the entry side of the brake disc 2 in relation to the forward direction of travel of the utility vehicle.
- contact surface 19 of the pressure piece 16 runs parallel to the side of the lining carrier plate 11 carrying the friction lining 12, ie at right angles to the longitudinal axis of the brake plunger.
- the contact surface 19 of the pressure piece 16 is inclined in the direction of the run-in side of the brake disc 2, the run-in side being on the left-hand side in FIGS.
- the rear side of the lining carrier plate 11 in the example shown in FIG. 3 is continuously parallel to the opposite side bearing the friction lining 12 .
- the angle of inclination a of the contact surfaces 18, 19 is ⁇ 5°, preferably 0.5° to 5°, in particular approximately 1°, relative to the side of the lining carrier plate 11 carrying the friction lining 12.
- FIGS. 4 and 5 each show an exemplary embodiment of a brake pad 3 according to the invention as a detail.
- the contact surface 18 is approximately circular in plan, with a diameter which corresponds approximately to the diameter of the contact surface 19 of the pressure piece 16 .
- the inclination of the contact surface 18 in the example shown in FIG. 5 runs at an acute angle ⁇ to the longitudinal extent a) of the pad carrier plate 11.
- the direction of inclination can be seen here by a dashed line.
- the angle ⁇ is preferably 45°, as shown, with the contact surface 18 , as mentioned, being arranged on the side of the lining carrier plate 11 opposite the friction lining 12 .
- the angle ⁇ can also be larger or smaller than 45°.
- the incline of the contact surface 18 in the opposite direction, to the right in the plane of the drawing can be formed in order to counteract possible tangential wear of the friction lining 12 .
- the inclination can extend over the entire length of the pad carrier plate 1, with the latter being inclined downwards to the left when the brake pad 3 is in the installed position.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021125444.2A DE102021125444A1 (de) | 2021-09-30 | 2021-09-30 | Scheibenbremse für ein Nutzfahrzeug |
| PCT/EP2022/076757 WO2023052323A1 (de) | 2021-09-30 | 2022-09-27 | Scheibenbremse für ein nutzfahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4409153A1 true EP4409153A1 (de) | 2024-08-07 |
Family
ID=83506364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22782544.5A Pending EP4409153A1 (de) | 2021-09-30 | 2022-09-27 | Scheibenbremse für ein nutzfahrzeug |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20240392850A1 (de) |
| EP (1) | EP4409153A1 (de) |
| CN (1) | CN118019923A (de) |
| DE (1) | DE102021125444A1 (de) |
| WO (1) | WO2023052323A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240426356A1 (en) * | 2023-06-23 | 2024-12-26 | Bendix Commercial Vehicle Systems Llc | Air Disc Brake Tapered Tappet for Brake Pad Wear Reduction |
| US12523267B1 (en) | 2025-04-25 | 2026-01-13 | Kb Intellectual Property Gmbh & Co. Kg | Air disc brake tappet and brake pad backing plate with differently sized interface features |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1289691B (de) * | 1967-12-15 | 1969-02-20 | Teves Gmbh Alfred | Bremsbacke fuer eine Teilbelagscheibenbremse |
| DE19547792A1 (de) * | 1995-12-20 | 1997-06-26 | Bayerische Motoren Werke Ag | Teilbelag-Scheibenbremse |
| DE102011115214A1 (de) * | 2011-09-28 | 2013-03-28 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse, insbesondere für ein Nutzfahrzeug, sowie Bremsbelag für eine Scheibenbremse |
-
2021
- 2021-09-30 DE DE102021125444.2A patent/DE102021125444A1/de active Pending
-
2022
- 2022-09-27 EP EP22782544.5A patent/EP4409153A1/de active Pending
- 2022-09-27 US US18/696,500 patent/US20240392850A1/en active Pending
- 2022-09-27 WO PCT/EP2022/076757 patent/WO2023052323A1/de not_active Ceased
- 2022-09-27 CN CN202280065272.2A patent/CN118019923A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023052323A1 (de) | 2023-04-06 |
| US20240392850A1 (en) | 2024-11-28 |
| CN118019923A (zh) | 2024-05-10 |
| DE102021125444A1 (de) | 2023-03-30 |
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Legal Events
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
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| 17Q | First examination report despatched |
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