EP1789692A1 - Disc brake, especially for a utility vehicle - Google Patents

Disc brake, especially for a utility vehicle

Info

Publication number
EP1789692A1
EP1789692A1 EP05786277A EP05786277A EP1789692A1 EP 1789692 A1 EP1789692 A1 EP 1789692A1 EP 05786277 A EP05786277 A EP 05786277A EP 05786277 A EP05786277 A EP 05786277A EP 1789692 A1 EP1789692 A1 EP 1789692A1
Authority
EP
European Patent Office
Prior art keywords
disc brake
tabs
spring
caliper
brake according
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.)
Withdrawn
Application number
EP05786277A
Other languages
German (de)
French (fr)
Inventor
Josef Wimmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Knorr Bremse Systeme fuer Schienenfahrzeuge 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 fuer Nutzfahrzeuge GmbH, Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of EP1789692A1 publication Critical patent/EP1789692A1/en
Withdrawn legal-status Critical Current

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
    • 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
    • F16D55/22655—Constructional details of guide pins

Definitions

  • the present invention relates to a disc brake, in particular for a commercial vehicle according to the preamble of claim 1.
  • disc brakes of the caliper also called sliding caliper
  • the brake carrier which is connected to the vehicle.
  • guide rails engage in the brake carrier, which are guided on the other hand in plain bearings of the caliper so that an axial displacement of the caliper to the stationary brake carrier is possible.
  • plain bearings one is designed as a fixed bearing with little sliding clearance, while the other acts as a floating bearing, which in particular manufacturing tolerances are compensated.
  • the spring causes a damping shocks, as they usually occur when driving.
  • the sliding ring and with it the guide rail is held under tension in a certain position, so that disturbing rattling noises are avoided.
  • the spring is preferably formed meander-shaped and completely surrounds the slide ring in its width, wherein the individual spring legs lie in areas on the sliding ring, in which an axis compensation takes place, as he to compensate for manufacturing tolerances, but also to compensate for changes in the position Guide Holms to the guide sleeve is required transversely to the axial direction of movement of the guide rail. Due to the adjacent resilient legs of the Achsaus GmbHshub is limited to some extent. The present invention is therefore based on the object to develop a disc brake of the generic type so that the operability of the floating bearing is improved.
  • Claim 1 has.
  • the tabs are shaped so that the spring action also occurs when Achsaus GmbH.
  • the corresponding stroke is through
  • the tabs are arranged on opposite sides of the seal ring or fixedly connected to the brake caliper component, which expediently has the form of a retaining ring.
  • the spring may consist of two approximately uniformly shaped parts, each of which has a bracket and two end-connected tabs, which lie in the mounted position on each other, so overlap.
  • This production of the spring offers the advantage of an extremely cost-effective production, wherein in principle the spring can first be manufactured in one piece and in a further manufacturing step is divided so that two substantially equal half-parts arise.
  • the receptacle of the caliper or of the component fastened therein can be provided with a corresponding locking means.
  • This consists according to a preferred embodiment of the invention of a plastic cage, which is vulcanized into the component and has the recesses for receiving the resilient tabs.
  • the recordings correspond in shape and dimension to the associated tabs.
  • FIG. 1 shows a partial longitudinal section through a disc brake according to the invention
  • Figure 2 is a detail of the disc brake in a longitudinal section
  • Figure 3 shows a further detail of the disc brake in a plan view
  • Figure 4 shows a part of the detail of Figure 3 in a perspective view
  • Figure 5 is a detail of Figure 2 in a perspective view
  • Figure 6 shows an exemplary embodiment of a spring of the disc brake in an exploded view
  • FIG. 1 shows a disk brake, in particular for a commercial vehicle, which has in its basic structure a brake caliper 2 which comprises an internally ventilated brake disk 1 which is fastened to an axle (not shown) of the utility vehicle.
  • the caliper 2 is on a brake carrier 7 of the commercial vehicle, based on the
  • Brake disc 1 axially slidably connected.
  • fastening elements 5, 6 are provided, of which the fastening element 5 is designed as a movable bearing and the fastening element 6 as a fixed bearing.
  • Both fastening elements 5, 6 each have a guide sleeve 8, 9 and a guided therein guide rail 10, wherein the guide sleeves 8, 9 are held in holes 3 of the caliper 2.
  • the guide rails 10 are screwed into the brake carrier 7 and thus fixed relative to the caliper 2, while the guide sleeves 8, 9 are fixedly connected to the caliper 2 and are therefore mounted axially displaceably on the guide rail 10 together with the caliper 2.
  • the guide sleeve 8 of the movable bearing 5 is shown, wherein the guide sleeve 8 has a slide ring 11 which surrounds the mattersshohn 10.
  • a Swtftihrung 14 which is shaped like a sleeve and on the side of a shaft 16 of the effetshohns 10 is supported.
  • a support ring 17 is arranged, which surrounds the slide ring 11 in this end and on the other hand rests with a lip on the guide rail 10.
  • the movable bearing allows, for example for tolerance compensation, an axial displacement of the guide rail 10, corresponding to the arrow marking transversely to the axial displacement direction.
  • a spring 12 is provided which abuts in regions on the outer surface of the seal ring 11 and opposite to the inner wall of a retaining ring 13 which surrounds the seal ring 11 concentrically and in the bore 3 of the Caliper 2 is inserted.
  • the spring consists of a sliding ring 11 at least partially surrounding bracket and attached, extending in the longitudinal axis of the slide ring 11 tabs 19, the areas abut the sliding ring 11 and on a component of the caliper 2 performing retaining ring 13.
  • the contoured spring 12 can be seen in plan view. There is also seen that the spring consists of two half-parts, as shown as a detail in the figure 6.
  • each half part has a circular segment-shaped bracket 18, at the respective end of which a tab 19 connects, wherein the associated bracket 18 forms an upper boundary of the tabs 19.
  • the half pieces are dimensioned so that in the assembled state always two tabs
  • FIG. 5 shows an axle compensation, which is enforced by an angle error, in which the shaft 16 deviates from the axis parallelism with respect to the retaining ring 13 fixed in the brake caliper 2.
  • an angle error in which the shaft 16 deviates from the axis parallelism with respect to the retaining ring 13 fixed in the brake caliper 2.
  • a preferably made of plastic cage 20 is provided in the retaining ring 13, which is fixedly connected to the retaining ring 13 and has two opposing seats 21, in each of which the lugs 19 of the spring 12 eino against rotation.
  • This cage 20 is preferably vulcanized.

Landscapes

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

Abstract

The invention relates to a disc brake, especially for a utility vehicle, said disc brake comprising a caliper (2) which is provided with a brake disc (1) and is fixed to a brake carrier (7) by means of two fixing elements (5, 6) in such a way that it can be axially displaced in relation to the brake disc (1). One fixing element (6) is embodied as a fixed bearing and the other (5) as a movable bearing that comprises a guiding sleeve (8) fixed in the caliper (2). A guiding bar (10) which is connected to the brake carrier (7) in a fixed manner can be axially displaced inside said guiding sleeve, and at least one partial region of the guiding sleeve (8) is formed by a sliding ring (11) surrounding the guiding bar (10). A spring (12) is applied to the outer periphery of the sliding ring, said spring being supported on a component of the caliper (2). The inventive disk brake is embodied in such a way that the spring (12) consists of a bow (18) at least partially surrounding the sliding ring (11), and adjacent fishplates (19) which extend in the direction of the longitudinal axis of the sliding ring and are applied to certain regions of the sliding ring (11) and of the component of the caliper (2).

Description

Scheibenbremse, insbesondere für ein Nutzfahrzeug Disc brake, in particular for a commercial vehicle
Die vorliegende Erfindung betrifft eine Scheibenbremse, insbesondere für ein Nutzfahrzeug gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a disc brake, in particular for a commercial vehicle according to the preamble of claim 1.
Bei derartigen Scheibenbremsen wird der Bremssattel, auch Schiebesattel genannt, durch Befestigungselemente mit dem Bremsträger, der an das Fahrzeug angeschlossen ist, verbunden. Dabei greifen Führungsholme in den Bremsträger ein, die andererseits in Gleitlagern des Bremssattels so geführt sind, dass eine axiale Verschiebung des Bremssattels zum ortsfesten Bremsträger möglich ist. Von den Gleitlagern ist eines als Festlager mit geringem Gleitspiel ausgebildet, während das andere als Loslager fungiert, wodurch insbesondere Fertigungstoleranzen ausgeglichen werden.In such disc brakes of the caliper, also called sliding caliper, connected by fasteners to the brake carrier, which is connected to the vehicle. In this case, guide rails engage in the brake carrier, which are guided on the other hand in plain bearings of the caliper so that an axial displacement of the caliper to the stationary brake carrier is possible. Of the plain bearings one is designed as a fixed bearing with little sliding clearance, while the other acts as a floating bearing, which in particular manufacturing tolerances are compensated.
Aus der DE 102 48 948 Al ist es bekannt, zwischen dem Bremssattel bzw. einem darin festgelegten Bauteil und dem Gleitring des Loslagers eine Feder anzuordnen, durch die die Verschleiß- und Rüttelfestigkeit des Loslagers verbessert wird.From DE 102 48 948 Al it is known to arrange a spring between the caliper or a component fixed therein and the sliding ring of the movable bearing, by which the wear and vibration resistance of the floating bearing is improved.
Insbesondere bewirkt die Feder eine Dämpfung bei Erschütterungen, wie sie üblicherweise im Fahrbetrieb auftreten. Dabei wird der Gleitring und mit ihm der Führungsholm unter Spannung in einer bestimmten Position gehalten, so dass störende Klappergeräusche vermieden werden.In particular, the spring causes a damping shocks, as they usually occur when driving. The sliding ring and with it the guide rail is held under tension in a certain position, so that disturbing rattling noises are avoided.
Bei der bekannten Scheibenbremse ist die Feder vorzugsweise mäanderförmig ausgebildet und umgreift in ihrer Breite den Gleitring vollständig, wobei die einzelnen Federschenkel auch in Bereichen am Gleitring anliegen, in denen ein Achsausgleich erfolgt, wie er zum Ausgleich von Fertigungstoleranzen, aber auch zum Ausgleich von Lageveränderungen des Führungsholms zur Führungshülse quer zur axialen Bewegungsrichtung des Führungsholms erforderlich ist. Durch die anliegenden federnden Schenkel wird der Achsausgleichshub jedoch im gewissen Umfang eingeschränkt. Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Scheibenbremse der gattungsgemäßen Art so weiter zu entwickeln, dass die Funktionsfähigkeit des Loslagers verbessert wird.In the known disc brake, the spring is preferably formed meander-shaped and completely surrounds the slide ring in its width, wherein the individual spring legs lie in areas on the sliding ring, in which an axis compensation takes place, as he to compensate for manufacturing tolerances, but also to compensate for changes in the position Guide Holms to the guide sleeve is required transversely to the axial direction of movement of the guide rail. Due to the adjacent resilient legs of the Achsausgleichshub is limited to some extent. The present invention is therefore based on the object to develop a disc brake of the generic type so that the operability of the floating bearing is improved.
Diese Aufgabe wird durch eine Scheibenbremse gelöst, die die Merkmale desThis task is solved by a disc brake, which has the characteristics of
Anspruchs 1 aufweist.Claim 1 has.
Durch diese konstruktive Ausbildung wird der Hub des notwendigen Achsausgleichs praktisch nicht behindert, da es nun möglich ist, die Dämpfung ausschließlich dort zu ermöglichen, das heißt die die Federung übernehmendenThrough this constructive training of the stroke of the necessary axle compensation is practically not hindered, since it is now possible to allow the damping exclusively there, that is, the suspension taking over
Laschen an der Stelle zu positionieren, wo kein Achsausgleich erfolgt, also rechtwinklig zur Richtung des Achsausgleiches.Position tabs at the point where no axle compensation takes place, ie at right angles to the direction of the axle compensation.
In vorteilhafter Weise sind die Laschen so geformt, dass die Federwirkung auch beim Achsausgleich eintritt. Hierbei wird die entsprechende Hubbewegung durchAdvantageously, the tabs are shaped so that the spring action also occurs when Achsausgleich. Here, the corresponding stroke is through
Schenkel der bevorzugt in der Querschnittskontur trapezförmig ausgebildeten Laschen gedämpft, mit der Folge, dass das in der Beschreibungseinleitung genannte Klappern wirksam verhindert wird.Leg of the preferably trapezoidal in the cross-sectional contour formed tabs attenuated, with the result that the mentioned in the introduction introduction rattling is effectively prevented.
Nach einer vorteilhaften Weiterbildung der Erfindung sind die Laschen an sich gegenüberliegenden Seiten des Gleitringes bzw. des mit dem Bremssattel fest verbundenen Bauteiles angeordnet, das zweckmäßiger Weise die Form eines Halteringes aufweist.According to an advantageous embodiment of the invention, the tabs are arranged on opposite sides of the seal ring or fixedly connected to the brake caliper component, which expediently has the form of a retaining ring.
Dabei kann die Feder aus zwei etwa gleichförmig ausgebildeten Teilen bestehen, von denen jedes einen Bügel und zwei endseitig angeschlossene Laschen aufweist, die in montierter Stellung aufeinander liegen, sich also überdecken.In this case, the spring may consist of two approximately uniformly shaped parts, each of which has a bracket and two end-connected tabs, which lie in the mounted position on each other, so overlap.
Dies ermöglicht eine geringe Ausgangsdicke der beiden Federteile, die aus einem Federblech hergestellt sind, vorzugsweise als Stanzteile.This allows a low output thickness of the two spring parts, which are made of a spring plate, preferably as stampings.
Diese Herstellung der Feder bietet den Vorteil einer äußerst kostengünstigen Fertigung, wobei prinzipiell die Feder zunächst einstöckig hergestellt werden kann und in einem weiteren Fertigungsschritt so geteilt wird, dass zwei im wesentlichen gleiche Halbteile entstehen.This production of the spring offers the advantage of an extremely cost-effective production, wherein in principle the spring can first be manufactured in one piece and in a further manufacturing step is divided so that two substantially equal half-parts arise.
Zur Fixierung der Feder, insbesondere zur Verdrehsicherung und axialen Sicherung kann die Aufnahme des Bremssattels bzw. des darin befestigten Bauteiles mit einem entsprechenden Arretiermittel versehen sein. Dies besteht nach einer bevorzugten Weiterbildung der Erfindung aus einem Kunststoffkäfig, der in das Bauteil einvulkanisiert ist und der Aussparungen zur Aufnahme der federnden Laschen aufweist. Die Aufnahmen entsprechen in Form und Abmaß den zugeordneten Laschen.For fixing the spring, in particular for preventing rotation and axial securing, the receptacle of the caliper or of the component fastened therein can be provided with a corresponding locking means. This consists according to a preferred embodiment of the invention of a plastic cage, which is vulcanized into the component and has the recesses for receiving the resilient tabs. The recordings correspond in shape and dimension to the associated tabs.
Neben dem genannten insoweit ungehinderten Achsausgleich aufgrund der neuen Konfiguration der Feder ist in diesem Zusammenhang auch ein Neigungsausgleich problemlos möglich, wenn die Längsachse der Aufnahme im Bremssattel abweicht von dem funktionsbedingten Verlauf der Längsachse des Führungsholms bzw. desIn addition to the aforementioned extent unhindered axle compensation due to the new configuration of the spring tilt compensation is easily possible in this context, if the longitudinal axis of the receptacle in the caliper deviates from the function-related course of the longitudinal axis of the guide rail or the
Gleitringes, wobei dann beide Achsen in einem gewissen Winkel zueinander stehen.Sliding ring, in which case both axes are at a certain angle to each other.
Durch die Feder wird also sozusagen eine schwimmende Lagerung erreicht, die neben der genannten Dämpfung auch eine genaue, verkantungsfreie Führung desBy the spring, so to speak, a floating storage is achieved, in addition to the above-mentioned damping and an accurate, tilt-free guidance of the
Führungsholms im Gleitring erlaubt.Guide rails allowed in the sliding ring.
Weitere vorteilhafte Ausbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Further advantageous embodiments of the invention are characterized in the subclaims.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der beigefügten Zeichnungen beschrieben.An embodiment of the invention will be described below with reference to the accompanying drawings.
Es zeigen:Show it:
Figur 1 einen Teillängsschnitt durch eine erfindungsgemäße Scheibenbremse1 shows a partial longitudinal section through a disc brake according to the invention
Figur 2 eine Einzelheit der Scheibenbremse in einem Längsschnitt Figur 3 eine weitere Einzelheit der Scheibenbremse in einer DraufsichtFigure 2 is a detail of the disc brake in a longitudinal section Figure 3 shows a further detail of the disc brake in a plan view
Figur 4 einen Teil der Einzelheit nach Figur 3 in einer perspektivischen AnsichtFigure 4 shows a part of the detail of Figure 3 in a perspective view
Figur 5 eine Einzelheit nach Figur 2 in einer perspektivischen AnsichtFigure 5 is a detail of Figure 2 in a perspective view
Figur 6 ein Ausfuhrungsbeispiel einer Feder der Scheibenbremse in einer ExplosionsdarstellungFigure 6 shows an exemplary embodiment of a spring of the disc brake in an exploded view
In der Figur 1 ist eine Scheibenbremse, insbesondere für ein Nutzfahrzeug, dargestellt, die in ihrem Grundaufbau einen Bremssattel 2 aufweist, der eine innenbelüftete Bremsscheibe 1 umfasst, die an einer nicht dargestellten Achse des Nutzfahrzeuges befestigt ist.FIG. 1 shows a disk brake, in particular for a commercial vehicle, which has in its basic structure a brake caliper 2 which comprises an internally ventilated brake disk 1 which is fastened to an axle (not shown) of the utility vehicle.
Der Bremssattel 2 ist an einem Bremsträger 7 des Nutzfahrzeuges, bezogen auf dieThe caliper 2 is on a brake carrier 7 of the commercial vehicle, based on the
Bremsscheibe 1 axial verschiebbar angeschlossen.Brake disc 1 axially slidably connected.
Hierzu sind zwei Befestigungselemente 5, 6 vorgesehen, von denen das Befestigungselement 5 als Loslager und das Befestigungselement 6 als Festlager ausgebildet ist.For this purpose, two fastening elements 5, 6 are provided, of which the fastening element 5 is designed as a movable bearing and the fastening element 6 as a fixed bearing.
Beide Befestigungselemente 5, 6 weisen jeweils eine Führungshülse 8, 9 sowie einen darin geführten Führungsholm 10 auf, wobei die Führungshülsen 8, 9 in Bohrungen 3 des Bremssattels 2 festgehalten sind.Both fastening elements 5, 6 each have a guide sleeve 8, 9 and a guided therein guide rail 10, wherein the guide sleeves 8, 9 are held in holes 3 of the caliper 2.
Die Führungsholme 10 sind in den Bremsträger 7 eingeschraubt und somit gegenüber dem Bremssattel 2 ortsfest, während die Führungshülsen 8, 9 fest mit dem Bremssattel 2 verbunden sind und von daher auf dem Führungsholm 10 zusammen mit dem Bremssattel 2 axial verschiebbar gelagert sind.The guide rails 10 are screwed into the brake carrier 7 and thus fixed relative to the caliper 2, while the guide sleeves 8, 9 are fixedly connected to the caliper 2 and are therefore mounted axially displaceably on the guide rail 10 together with the caliper 2.
In der Figur 2 ist die Führungshülse 8 des Loslagers 5 dargestellt, wobei die Führungshülse 8 einen Gleitring 11 aufweist, der den Führungshohn 10 umschließt. An einem Ende ist der Gleitring 11 von einer Schaftftihrung 14 eingefasst, die hülsenartig geformt ist und an der sich seitlich ein Schaft 16 des Führungshohns 10 abstützt. An dem der Schaftführung 14 gegenüber liegenden Endbereich ist ein Stützring 17 angeordnet, der den Gleitring 11 in diesem Endbereich ummantelt und andererseits mit einer Lippe am Führungsholm 10 anliegt.In the figure 2, the guide sleeve 8 of the movable bearing 5 is shown, wherein the guide sleeve 8 has a slide ring 11 which surrounds the Führungshohn 10. At one end of the sliding ring 11 is bordered by a Schaftftihrung 14, which is shaped like a sleeve and on the side of a shaft 16 of the Führungshohns 10 is supported. At the end of the shaft guide 14 opposite end a support ring 17 is arranged, which surrounds the slide ring 11 in this end and on the other hand rests with a lip on the guide rail 10.
Das Loslager erlaubt beispielsweise zum Toleranzausgleich eine Achsverschiebung des Führungsholmes 10, entsprechend der Pfeilkennzeichnung quer zur axialen Verschiebrichtung.The movable bearing allows, for example for tolerance compensation, an axial displacement of the guide rail 10, corresponding to the arrow marking transversely to the axial displacement direction.
Um eine möglichst große Dämpfung der Querbewegungen beispielsweise bei Erschütterungen zu erreichen, ist eine Feder 12 vorgesehen, die bereichsweise an der Außenfläche des Gleitringes 11 und gegenüberliegend an der Innenwandung eines Halteringes 13 anliegt, der den Gleitring 11 konzentrisch umschließt und der in die Bohrung 3 des Bremssattels 2 eingelassen ist.In order to achieve the greatest possible attenuation of the transverse movements, for example, vibrations, a spring 12 is provided which abuts in regions on the outer surface of the seal ring 11 and opposite to the inner wall of a retaining ring 13 which surrounds the seal ring 11 concentrically and in the bore 3 of the Caliper 2 is inserted.
Erfindungsgemäß besteht die Feder aus einem den Gleitring 11 zumindest teilweise umschließenden Bügel und daran angeschlossenen, sich in Längsachsrichtung des Gleitringes 11 erstreckenden Laschen 19, die bereichsweise am Gleitring 11 und an dem ein Bauteil des Bremssattels 2 darstellenden Haltering 13 anliegen.According to the invention, the spring consists of a sliding ring 11 at least partially surrounding bracket and attached, extending in the longitudinal axis of the slide ring 11 tabs 19, the areas abut the sliding ring 11 and on a component of the caliper 2 performing retaining ring 13.
In der Figur 3 ist in der Draufsicht die konturierte Feder 12 erkennbar. Dort ist auch zu sehen, dass die Feder aus zwei Halbteilen besteht, wie sie als Einzelheit in der Figur 6 dargestellt sind.In the figure 3, the contoured spring 12 can be seen in plan view. There is also seen that the spring consists of two half-parts, as shown as a detail in the figure 6.
Dabei weist jedes Halbteil einen kreissegmentförmigen Bügel 18 auf, an dessen jeweiligem Ende sich eine Lasche 19 anschließt, wobei der zugeordnete Bügel 18 eine obere Begrenzung der Laschen 19 bildet.In this case, each half part has a circular segment-shaped bracket 18, at the respective end of which a tab 19 connects, wherein the associated bracket 18 forms an upper boundary of the tabs 19.
Die Halbteile sind so bemessen, dass im montierten Zustand immer zwei LaschenThe half pieces are dimensioned so that in the assembled state always two tabs
19 aufeinanderliegen, wobei sie im Querschnitt trapezförmig konturiert sind, so dass zwei Kanten der äußeren Laschen an der Innenwandung des Halteringes 13 anliegen, während die inneren Laschen 19 den Gleitring 11 tangieren. Der Dämpfungshub in diesem Bereich ist im Verhältnis zum Achsausgleich, der in einer Richtung erfolgt, die um 90° Grad versetzt zu den Laschen 19 gegeben ist, geringer. Trotzdem ist durch die Formgebung der Laschen 19 auch beim Achsausgleich eine Dämpfung durch die federnden Laschen 19 gegeben.19 lie on one another, wherein they are contoured trapezoidal in cross-section, so that two edges of the outer tabs rest against the inner wall of the retaining ring 13, while the inner tabs 19 affect the slide ring 11. The damping stroke in this area is in relation to the axle compensation, which takes place in a direction given by 90 ° degrees offset to the tabs 19, lower. Nevertheless, given by the shape of the tabs 19 and the axle compensation damping by the resilient tabs 19.
In der Figur 5 ist ein Achsausgleich dargestellt, der durch einen Winkelfehler erzwungen ist, bei dem der Schaft 16 gegenüber dem im Bremssattel 2 festgelegten Haltering 13 von der Achsparallelität abweicht. Hier ist sehr deutlich zu erkennen, dass auch relativ große Winkelfehler durch die im Sinne der Erfindung ausgestaltete Feder 12 ausgeglichen werden können.FIG. 5 shows an axle compensation, which is enforced by an angle error, in which the shaft 16 deviates from the axis parallelism with respect to the retaining ring 13 fixed in the brake caliper 2. Here it can be seen very clearly that even relatively large angle errors can be compensated by the spring 12 designed in the sense of the invention.
Zur Arretierung der Feder 12 ist im Haltering 13 ein vorzugsweise aus Kunststoff bestehender Käfig 20 vorgesehen, der mit dem Haltering 13 fest verbunden ist und der zwei sich gegenüberliegende Aufnahmen 21 aufweist, in denen jeweils die Laschen 19 der Feder 12 verdrehgesichert einliegen. Dieser Käfig 20 ist vorzugsweise einvulkanisiert. To lock the spring 12, a preferably made of plastic cage 20 is provided in the retaining ring 13, which is fixedly connected to the retaining ring 13 and has two opposing seats 21, in each of which the lugs 19 of the spring 12 einliegen against rotation. This cage 20 is preferably vulcanized.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Bremsscheibe1 brake disc
2 Bremssattel2 caliper
3 Bohrung3 hole
4 .4.
5 Befestigungselement 6 Befestigungselement5 fastener 6 fastener
7 Bremsträger7 brake carrier
8 Führungshülse8 guide sleeve
9 Führungshülse9 guide sleeve
10 Führungsholm 11 Gleitring10 guide rail 11 slide ring
12 Feder12 spring
13 Haltering13 retaining ring
14 Schaftfuhrung14 shaft guide
15 . 16 Schaft15. 16 shaft
17 Stützring17 support ring
18 Bügel18 straps
19 Lasche19 tab
20 Käfig 21 Aufnahme 20 cage 21 recording

Claims

Ansprüche claims
1. Scheibenbremse, insbesondere für ein Nutzfahrzeug, mit einem eine Bremsscheibe (1) umfassenden Bremssattel (2), der an einem Bremsträger (7) durch zwei Befestigungselemente (5, 6), bezogen auf die Bremsscheibe (1), axial verschiebbar befestigt ist, wobei ein Befestigungselement (6) als Festlager und das andere (5) als Loslager ausgebildet ist, das eine im Bremssattel (2) festgelegte Führungshülse (8) aufweist, in der ein mit dem Bremsträger (7) fest verbundener Führungshohn (10) axial verschiebbar ist, und wobei zumindest ein Teilbereich der Führungshülse (8) durch einen den1. Disc brake, in particular for a commercial vehicle, comprising a brake disc (1) comprising a brake caliper (2) which is axially slidably mounted on a brake carrier (7) by two fastening elements (5, 6), based on the brake disc (1) , wherein a fastening element (6) as a fixed bearing and the other (5) is designed as a floating bearing having a brake caliper (2) fixed guide sleeve (8) in which a with the brake carrier (7) fixedly connected Führungshohn (10) axially is displaceable, and wherein at least a portion of the guide sleeve (8) by a the
Führungshohn (10) umschließenden Gleitring (11) gebildet wird, an dessen Außenumfang eine Feder (12) anliegt, die sich andererseits an einem Bauteil des Bremssattels (2) abstützt, dadurch gekennzeichnet, dass die Feder (12) aus einem den Gleitring (11) zumindest teilweise umschließenden Bügel (18) und daran angeschlossenen, sich in Längsachsrichtung des Gleitringes (11) erstreckenden Laschen (19) besteht, die bereichs weise am Gleitring (11) und am Bauteil des Bremssattels (2) anliegen.Führungshohn (10) enclosing slide ring (11) is formed, on whose outer circumference a spring (12) rests, on the other hand on a component of the caliper (2) is supported, characterized in that the spring (12) from a sliding ring (11 ) At least partially enclosing bracket (18) and connected thereto, in the longitudinal axis of the slide ring (11) extending tabs (19), the area on the slide ring (11) and on the component of the caliper (2) abut.
2. Scheibenbremse nach Anspruch 1, dadurch gekennzeichnet, dass der Bügel ( 18) die Laschen (19) oberseitig begrenzt.2. Disc brake according to claim 1, characterized in that the bracket (18) delimits the tabs (19) on the upper side.
3. Scheibenbremse nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Laschen (19) im Querschnitt abweichend von einer Kreisbogenform konturiert sind.3. Disc brake according to claim 1 or 2, characterized in that the tabs (19) are contoured in cross section deviating from a circular arc shape.
4. Scheibenbremse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Laschen (19) im Querschnitt trapezförmig konturiert sind.4. Disc brake according to one of the preceding claims, characterized in that the tabs (19) are contoured in cross-section trapezoidal.
5. Scheibenbremse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Feder (12) aus zwei Halbteilen besteht, von denen jedes einen Bügel (18) und endseitig jeweils eine Lasche (19) aufweist. 5. Disc brake according to one of the preceding claims, characterized in that the spring (12) consists of two half parts, each of which has a bracket (18) and at each end a tab (19).
6. Scheibenbremse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Bügel (18) kreisbogenförmig ausgebildet sind.6. Disc brake according to one of the preceding claims, characterized in that the brackets (18) are formed in a circular arc.
7. Scheibenbremse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die beiden einander zugewandten Laschen (19) der beiden Halbteile aufeinander liegend angeordnet sind.7. Disc brake according to one of the preceding claims, characterized in that the two mutually facing tabs (19) of the two half parts are arranged one above the other.
8. Scheibenbremse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sich die Laschen (19), ausgehend vom Bügel (18) in Richtung der Bremsscheibe (1) erstrecken.8. Disc brake according to one of the preceding claims, characterized in that extending the tabs (19), starting from the bracket (18) in the direction of the brake disc (1).
9. Scheibenbremse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Feder (12) durch Stanzen hergestellt ist.9. Disc brake according to one of the preceding claims, characterized in that the spring (12) is produced by punching.
10. Scheibenbremse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Feder (12) aus einem Federblech gebildet ist.10. Disc brake according to one of the preceding claims, characterized in that the spring (12) is formed from a spring plate.
11. Scheibenbremse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Bauteil des Bremssattels (2), an dessen Innenseite sich die Laschen (19) abstützen, als Haltering (13) ausgebildet ist, der innenseitig einen Käfig (20) aufweist, der mit Aufnahmen (21) zur Platzierung der Laschen (19) versehen ist.11. Disc brake according to one of the preceding claims, characterized in that the component of the caliper (2), on the inside of which the tabs (19) are supported, as a retaining ring (13) is formed, which has on the inside a cage (20), the with recordings (21) for placement of the tabs (19) is provided.
12. Scheibenbremse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Käfig (20) aus Kunststoff besteht.12. Disc brake according to one of the preceding claims, characterized in that the cage (20) consists of plastic.
13. Scheibenbremse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Aufnahmen (21) in ihrem Abmaß etwa dem Abmaß der einliegenden Laschen (19) entsprechen.13. Disc brake according to one of the preceding claims, characterized in that the receptacles (21) correspond in their dimension about the dimension of the inserted tabs (19).
14. Scheibenbremse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Käfig (20) an der Innenseite des Halteringes (13) einvulkanisiert ist. 14. Disc brake according to one of the preceding claims, characterized in that the cage (20) on the inside of the retaining ring (13) is vulcanized.
EP05786277A 2004-09-02 2005-08-31 Disc brake, especially for a utility vehicle Withdrawn EP1789692A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410042575 DE102004042575B3 (en) 2004-09-02 2004-09-02 Disc brake, in particular for a commercial vehicle
PCT/EP2005/009371 WO2006024513A1 (en) 2004-09-02 2005-08-31 Disc brake, especially for a utility vehicle

Publications (1)

Publication Number Publication Date
EP1789692A1 true EP1789692A1 (en) 2007-05-30

Family

ID=35529577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05786277A Withdrawn EP1789692A1 (en) 2004-09-02 2005-08-31 Disc brake, especially for a utility vehicle

Country Status (6)

Country Link
EP (1) EP1789692A1 (en)
AU (1) AU2005279274A1 (en)
CA (1) CA2578982A1 (en)
DE (1) DE102004042575B3 (en)
MX (1) MX2007002496A (en)
WO (1) WO2006024513A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006050647A1 (en) * 2006-10-24 2008-04-30 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Disc brake for commercial motor vehicle, has brake disk with caliper, and cap is fixed under front side cover of guide bush in axial part that is external to elastomer bearing sleeve
DE102012006133A1 (en) * 2012-03-26 2013-09-26 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Disc brake, in particular for a commercial vehicle
DE102015114437A1 (en) * 2015-08-31 2017-03-02 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Disc brake for a commercial vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2414174C2 (en) * 1974-03-23 1983-10-27 Alfred Teves Gmbh, 6000 Frankfurt Brake caliper guide for a partially lined disc brake
IT1261610B (en) * 1993-10-14 1996-05-23 Alliedsignal Freni Spa DISC BRAKE WITH FLOATING BRACKET, AND COLUMN FOR SUCH DISC BRAKE.
DE10248948C5 (en) * 2002-10-21 2008-07-24 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Disc brake, in particular for a commercial vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006024513A1 *

Also Published As

Publication number Publication date
DE102004042575B3 (en) 2006-04-20
CA2578982A1 (en) 2006-03-09
AU2005279274A1 (en) 2006-03-09
MX2007002496A (en) 2007-05-11
WO2006024513A1 (en) 2006-03-09

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