EP3724532A1

EP3724532A1 - Disc brake for a utility vehicle, and brake pad set

Info

Publication number: EP3724532A1
Application number: EP18815609.5A
Authority: EP
Inventors: Andreas Petschke; Michael Hidringer; Martin PLEINTINGER; Josef Schropp; Tobias Fischl
Original assignee: Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Current assignee: Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Priority date: 2017-12-12
Filing date: 2018-12-04
Publication date: 2020-10-21
Also published as: WO2019115286A1; CN111480019B; CN111480019A; DE102017129672A1; US20210206355A1

Abstract

The invention relates to a disc brake (1) for a utility vehicle, comprising a brake caliper (4) designed as a sliding caliper and engaging over a brake disc (2), and secured to a stationary brake carrier (3), two brake pads (5, 5') which are arranged in the brake caliper (4), can move inversely and have a respective pad carrier plate (5a, 5'a) and a friction lining (5b, 5'b) secured thereon, of which an action-side or application-side brake pad (5) can be pressed against the brake disc (2) by means of an application device via at least one brake piston, wherein the brake pads (5, 5') are each accommodated in a pad housing (6, 6') of the stationary brake carrier (3), wherein the pad housing (6, 6') is formed by two opposing brake carrier lugs (3a, 3b; 3'a, 3'b) and a longitudinal connector (3c, 3'c) connecting the brake carrier lugs (3a, 3b; 3'a, 3'b), as well as comprising at least one return device (100) with which the brake pads (5, 5') can be returned after a brake-dependent shifting and releasing of the brake. At least one of the brake pads (5, 5') is assigned a pad return device (100), with which the at least one brake pad (5, 5') can be returned after a brake-dependent shifting and releasing of the brake. The invention also relates to corresponding brake pad sets.

Description

DESCRIPTION

Disc brake for a commercial vehicle

and brake pad set

The invention relates to a disc brake for a commercial vehicle according to the preamble of claim 1. The invention also relates to a brake pad set.

In a generic, also known as sliding caliper brake (or floating caliper brake) disc brake is in the case of a brake solution by means of a brake application, which is actuated pneumatically or by electric motor, a zuspannseitiger brake pad pressed against a vehicle-mounted brake disc. In the course of the braking process, the brake caliper, based on the brake disc, against the application direction of the application side brake pad under entrainment and pressing the ge opposite, reaction side (back) brake lining moved to the other side of the brake disc.

After releasing the brake remains in the known disc brake caliper in this position, in which the brake pads, but at least the reaction-side brake pad is depressurized, but rubbing against the brake disc. The residual grinding torques of the brake linings which occur as a result during the ferrying operation have a disadvantageous effect insofar as they lead to increased fuel consumption as well as a reduction in the service life of the components involved, namely the brake disk and the brake linings.

Although there is a slight release of the brake pads in ferry operation beispielswei se by a wobble of the brake disc and by shocks and lateral acceleration when cornering. However, these effects are not sufficient to effectively prevent the mentioned residual grinding moments. Likewise, these effects can lead to a concern of the brake pads on the brake disc again after a release of the brake pads from the brake disc, which in turn can cause a residual grinding torque. DE 10 2007 001 213 describes a disc brake with a

Belagückstelleinrichtung, which is arranged in one of the guide rails over which the brake caliper is slidably mounted on the brake carrier, and which has a resilient return element, by which the caliper is moved to an initial position.

In principle, this construction has proven itself. However, the use of this known Belagückstelleinrichtung lead in compressed air-actuated disc brakes heavy commercial vehicles to problems, as here wide limits of variable influences by component tolerances and component deformations are effective, not to leave a safe function of this Belagückstelleinrichtung in any case.

Comparable problems arise in a disc brake as it is thematized in DE 10 2012 006 1 1 1 A1. There is one

Belagückstelleinrichtung arranged on the opposite side of the application device, the reaction-side brake lining side facing, whereby an effective, in particular automatic reset of the caliper it is sufficient, at the same time minimal interference with the system rigidity.

In any case, the lining restoring device acts on the caliper, wherein the brake carrier acts as an abutment.

DE 43 01 621 A1 describes a floating caliper disc brake with egg nem stationary brake carrier having two disc over the outer edge of a brake protruding support arms, with both sides of the brake disc arranged, each having a friction lining and a back plate having Bremsba bridges to the Carrier arms are slidably supported, with a brake carrier on the axially displaceably guided floating caliper, which surrounds the Bremsba bridges and a particular pressure on the brake shoes to the brake disc actuating device, with an acting on the brake shoes axi al in Bremslöserichtung spring arrangement, the setting after braking a clearance between brake shoes and brake disc un supported. The spring arrangement has at least one spreading spring, the total of egg nem carrier arm of the brake carrier in the axial direction

is fixed immovably, that the attachment to a located on the outer edge of the brake disc portion of the support arm takes place, and that the spreading spring has at least two spring arms which bear resiliently on the Rückplat th of the brake shoes in the axial direction. US2014 / 0339026 A1 describes a spreading spring comprising a Verrie gelungsarm connecting the spreading spring with a brake component, a Rückzugarm; and biasing means disposed between the locking arm and the return arm, the biasing device comprising six helical loops or more, which store energy during a brake activation and, once the braking operation is completed, retract the brake components (brake lining). It is a Bremssat tel in the form of a caliper, which is not a sliding caliper specified. The water is suitable for a passenger vehicle, but not for a commercial vehicle.

The invention has the object of providing a disc brake of the genus in modern art so that increases with structurally simple means the life of the brake pads and brake disc in particular and the total operating costs are lowered, with a change of the brake pads is facilitated.

Another object is to provide a corresponding brake pad set be.

This object is achieved by a disc brake with the features of claim 1. An.

The further object is achieved by brake pad sets with the features of claim 25 to 29.

A disc brake according to the invention for a commercial vehicle, comprising a brake disc cross-trained as a sliding cal trained tel, which is fixed to a stationary brake carrier, two in the caliper to ordered, oppositely movable, each having a lining carrier plate and a friction lining having brake pads, one of which akti onsseitiger or zuspannseitiger brake pad, by means of an application device via at least one brake punch against the brake disc can be pressed, wherein the brake pads are each received in a lining shaft of the stationary brake carrier, wherein the lining shaft by two against outstanding Bremsträgerhörner and a Bremsträgerhörner connect the longitudinal connector is set, and at least one restoring device with which the brake pads are traceable after a brake-related displacement and release of the brake. At least one of the brake pads is an ne Belagrückstelleinrichtung assigned, with which the at least one brake pad is traceable to a brake-related displacement and release of the brake.

By means of the assignment of a respective return device to each of the two brake pads, it is possible that reset elements of the Rückstellein direction are divided into the respective brake pad. Due to this division, it is advantageous that no elements for returning the brake linings in the region of the brake disc overlap are necessary. This is a Wech sel of the brake pads easier because no restoring elements or - devices must be removed in the brake disc attack and reinstalled.

Another advantage results from the fact that by returning the

Brake pads from the brake disc by means of the respective

Belrückückstelleinrichtung a residual grinding of the respective brake pad on the brake disc excluded or at least significantly reduced. So a service life of the friction partners brake pads / brake disc can be increased and fuel consumption can be reduced.

There are appropriate brake pad sets for the above-described ticket benbremse, comprising at least two brake pads, each with a pad carrier plate and a mounted on the pad carrier plate friction lining provided. The brake pad set has at least one

Belrückückstelleinrichtung with at least one return element for a corresponding brake pad on. In one embodiment, the conventional brake pads can advantageously be used without modification, with only the Rückstellele elements must be added to a change or a replacement.

In one embodiment of the disc brake, the Belagückstelleinrichtung of the associated a brake lining on two return elements, of which in each case a reset element is fastened to each one of themselves facing brake carrier horns of a lining shaft of the stationary brake carrier. A change of the brake pads is advantageously not required. Another advantage is that the return elements in a simple Wei se can be applied to the brake carrier horns. A particular advantage is that a simple retrofitting is possible because no edits or changes of the existing brake discs are necessary.

It is advantageous that the return elements each have a spring arm and Hal teabschnitte, wherein the respective spring arm is attached to one of the sections Halteab. This results in a compact component. In addition, only one version is required because the restoring element can be applied in an inverted manner to the opposite Bremsträgerhorn.

Furthermore, it is provided that the restoring elements are pushed and fixed with their respective holding portions on the respective Bremsträgerhorn of the lining shaft, wherein the spring arms in each case in the

Slab shaft protrude. This results in a simple and quick installation.

For an advantageous simplified attachment, the respective Halteab sections of the return elements form a kind of clamp and be attached to the respective Bremsträgerhorn of the lining shaft by jamming.

In a further embodiment, it is provided that the spring arms of the rear adjusting elements with a lining carrier plate of the associated brake lining, which is arranged in the lining shaft between the brake carrier horns, derge Stalt is in contact, that the respective spring arm in a central region of an edge of a side surface of the lining carrier plate is in contact with the lining carrier plate by action of a spring force of the spring arm. This made light easy mounting of the brake pads.

In an alternative embodiment, the lining restoring device of the supplied impaired a brake pad at least one return element, which is fastened to a longitudinal connector of a lining shaft of the stationary brake carrier be. This results in the advantage of a minimum number of components, since only one return element is to be mounted.

Furthermore, it is provided that the restoring element comprises a pressure portion, a spring portion and holding portions, wherein the pressure portion has a winding which is mounted on the spring portion at one end of a Ers th holding portion. This results in a compact component. A further embodiment provides that the restoring element with its Hal teabschnitten mounted like a clip around the longitudinal connector of the brake carrier and is fixed to the longitudinal connector by clamping action of the Halteab sections. So a simple installation is possible.

In yet another embodiment, the pressure section and the Federab are cut on the top of the longitudinal connector and disposed in a recess of the friction lining of the associated brake pad, the pressure section with a contact surface of a lining side of the lining carrier plate of the associated a brake lining by the action of a spring force of Federab in close contact. The recess allows an advantageous simple installation of the brake pad.

In a further alternative embodiment, the lining restoring device of the associated brake pad has at least two restoring elements, which are fastened both to the associated brake pad and fixed to the respective Weil associated Bremsträgerhörnern. In this case, there is a part before that the return elements are already secured captive to the respective brake pad.

An embodiment provides that the restoring element has a spring portion, at the ends of which a fastening portion is attached in each case. This results in a compact construction.

It is advantageous if the spring portion consists of a meander-shaped folded spring steel, folds lie in planes that are perpendicular to Ebe NEN of the mounting portions. In this way, a func onsfähigkeit is ensured over a longer travel.

In a further embodiment, the restoring element is fastened with one end via the one fastening section on the pad back plate of the associated brake pad on the back side and with the other end on the attachment portion fixed to the Bremsträgerhorn of the associated lining shaft of the brake carrier.

In yet another alternative embodiment, the

Belrückückstelleinrichtung the associated one brake lining at least one return element, which on the lining carrier plate of the associated one Brake pad is attached. This achieves an advantageous captive safety of the restoring element.

In one embodiment, the restoring element comprises a cylinder pin, a support arm and a force storage element, wherein the return element is arranged in egg nem installed in the lower region of the brake pad. This results in a favorable space saving.

In a further embodiment, the cylinder pin of the return element at one end to a head whose diameter is greater than the diameter of the cylindrical pin, and is connected at the other end to the support arm, said stored energy storage element on the cylinder pin pushed up and around the cylinder pin is arranged between the head and the support arm. Thus, an advantageous compact design it is possible.

Furthermore, it is provided in an embodiment that the restoring element is arranged installed in a lower portion of the brake pad so that a portion of the cylinder pin with the head and the power storage element in a recess of the friction lining and in a thus communicating from saving the lining carrier plate are arranged wherein the energy storage element is supported with its one end to the head of the cylinder pin and with its other end to a wall portion of the lining carrier plate, wherein the cylinder pin through a through hole of the wall portion ver slidably guided therethrough and with its other end to which the Abstützarm is attached, projecting from a back side of the lining carrier plate forth. This results in a space-saving installation.

For support and fixed attachment, it is advantageous if the support arm has a body, a connecting end and an end portion, where in the body with the connecting end to the other end of the cylinder pin is firmly connected, and wherein the body via the longitudinal connector of Brake carrier extends and is adapted in shape to the outer contour of the longitudinal connector of the brake carrier, wherein a free end of the body as the end portion is bent around a lower edge of the longitudinal connector of the brake carrier, whereby the support arm so forms a stationary support of the return element. Yet another alternative embodiment provides that the

Belagückstelleinrichtung of the associated a brake pad at least one return element which is fixed to the back side of the lining carrier plate of the associated a brake pad. This results in a compact design and easy installation.

It is advantageous if the restoring element is formed as an elongated Blattfederele element made of spring steel and is secured centrally in the lower region of the lining carrier plate via a fastening element on the back side. For a space-saving design and a flat design are possible, please include.

In a further embodiment, the restoring element has a central loading fastening portion, with which it is fastened via the fastening element on the back side of the lining carrier plate of the associated brake pad, and wherein at each end of the central mounting portion each have three spring portions are attached. This is advantageous because it results in a simple structure.

Furthermore, it is envisaged that the return element extends symmetrically to a radially extending to a brake disc axis of rotation axis of symmetry extending centrally through the fastener, tangent to the brake disc over a respective side edge of the lining carrier plate beyond the respective associated Bremsträgerhorn addition. So a simple stationary support support is possible.

For this purpose, it is advantageously provided that the respective third spring portions of the return element, which extend beyond the respective associated Bremsträ horn out, abut the respective associated Bremsträgerhorn on the outer contour and form a stationary support of Rückstellele Mentes.

In a further embodiment of corresponding brake lining sets, these each have the at least one lining restoring device described above with one or two restoring elements for an associated brake lining.

Further advantageous embodiments of the invention are characterized in the subclaims. Embodiments of the invention will be described below with reference to the drawings beigefüg th.

FIG. 1 shows a schematic perspective view of an embodiment of a disc brake according to the invention with a lining restoring device;

Figures 2-3 are schematic perspective views of a brake carrier of

Disc brake according to Figure 1 with the

Covering resetting device;

FIGS. 4-5 are schematic perspective partial views of a first variant of the invention

Belrückückstelleinrichtung the disc brake of Figure 1 with;

Figure 6 is a schematic perspective view of a Rückstellelemen TES the variant of the pad resetting device of Figure 4-5;

Figure 7 is a schematic partial perspective view of a second

Variant of the pad resetting device of the disc brake of Figure 1;

Figure 8 is a schematic perspective partial view of a third Va variant of the pad resetting device of the disc brake of Figure 1;

Figure 9 is a schematic perspective view of a Rückstellelemen TES of the third variant of the pad resetting device according to Fi gur 8;

Figure 10 is a schematic partial perspective view of a fourth

Variant of the pad resetting device of the disc brake of Figure 1;

Figure 1 1 is a schematic perspective view of a Rückstellelemen TES the fourth variant of the pad resetting device of Fi gur 10, and Figure 12 is a schematic perspective view of another Ausfüh approximately example of the disc brake according to the invention with the Belagrückstelleinrichtung.

Coordinates x, y, z are for orientation. The x-coordinate runs in a direction of travel of a vehicle to which the disc brake 1 is assigned. The y-coordinate is in the direction of a brake disk axis 2a, and the z-coordinate is perpendicular to an x-y plane.

The terms "top", "bottom", "left", "right" refer to the respective arrangements in the figures.

A "top" and a "bottom" of a brake pad 5, 5 'and a lining carrier plate 4 always refer to the installation situation of the respective brake pad 5, 5'. In this case, the underside of the respective brake pad 5, 5 'in the radial direction closer to a brake disc axis 2a of a brake disc 2 as the top of this brake pad 5, 5'.

By the term "transverse axis" of the brake pad 5, 5 'is meant an imaginary axis, which extends in the installed state of the brake pad 5, 5' in the z-direction radially to the brake disk axis of rotation 2a. A "longitudinal axis" of the brake lining 5, 5 'thus extends at right angles to the transverse axis and tangentially to the brake disk 2 in the x direction.

Figure 1 shows a schematic perspective view of an embodiment of a disc brake 1 according to the invention with a

Belagückstelleinrichtung 100. In the figures 2-3 represent schematic Per-spective views of a brake carrier 3 of the disc brake 1 of Figure 1 with the pad resetting device 100 is.

The disc brake 1 comprises a brake disc 2 with a Bremsschei bendrehachse 2 a, a brake carrier 3, a brake caliper 4, and two both sides of the brake disc 2 arranged brake pads 5, 5 '.

The brake carrier 3 is fixedly attached to a vehicle to which the disc brake 1 is assigned. The brake carrier 3 forms a Flalterung for the caliper 4 and the brake pads 5, 5 '. The caliper 4 engages over the brake disc 2 and is mounted as a so-called sliding caliper relative to the brake disc 2 axially in the direction of the brake disc axis 2 a slidably mounted on the brake carrier 3. For this purpose, the brake caliper 4 with bearing sections on guide rails, which are connected to the brake carrier 3, on the brake carrier 3 axially displaceable gela siege.

The caliper 4 comprises an application section 4a, a back section and 4b two tension struts 4c. The application section 4a extends with one side parallel to the plane of the brake disk 2 on one side of the brake disk 2. On the other side of the brake disk 2, also parallel to the brake disk 2 extending, the back section 4b is arranged, which with the application section 4a each one end is connected via a respective tie rod 4c. The tie rods 4c extend substantially at right angles to the application section 4a and the back section 4b. The application portion 4a has an inner space in which a not shown

Clamping device of the disc brake 1 is arranged.

On both sides of the brake disc 2, a brake pad 5, 5 'is arranged in each case. The arranged between the brake disc 2 and the application section 4a of the brake caliper 4 brake pad 5 is referred to as action-side or zuspannseitiger brake pad. The other brake pad 6 'is between tween the brake disc 2 and the back portion 4 b arranged and is referred to as a back-side or reaction-side brake pad 5' and by the reference numeral 5 'of the application-side brake pad 5 different. The reference numerals of the components and functional groups, which are located on the side of the brake disc 2, which faces the back portion 4b of the caliper 4, are marked with an apostrophe.

At least one of the brake pads 5, 5 'is associated with a Belagückstelleinrichtung 100, with which the at least one brake pad 5, 5' is traceable after a brake-induced displacement and release of the brake. Thus, each brake lining 5, 5 'can be equipped with a lining restoring device 100, the disk brake 1 then having two lining restoring devices 100.

The lining restoring device 100 comprises at least one resilient element which is arranged between a brake lining 5, 5 'and a stationary component of the disc brake 1. These resilient components are in the embodiment in Figure 1 covered by the surrounding components and best seen in Figures 2 and 3. FIG. 1 primarily serves to provide an overview and arrangement of the components of the disc brake 1.

Figure 2 shows a schematic perspective view of the brake carrier 3 of the disc brake 1 according to Figure 1 with the back-side brake pad 5 'and the pad return device 100. The other side of the brake carrier 3, which faces the application section 4a of the caliper 4, is referred to as the mounting side and is on a fixed part of an associated vehicle be strengthened. In Figure 3, the brake carrier 3 of Figure 2 with the

Belrückückstelleinrichtung 100 without brake pad 5 'shown.

Each brake lining 5, 5 'has a lining carrier plate 5a, 5'a and a side facing the brake disk 2, the lining side 5c, 5'c is called, attached thereto friction lining 5b, 5'b, which in function, ie at a brake solution, is pressed against the brake disc 2. The other side of the

Pad carrier plate 5a, 5'a is referred to in the application-side brake pad 5 as the pressure side 5d, wherein it is referred to in the back-side brake pad 5 'as the back side 16. Thus, the application-side brake pad 5 is with its back side 5d with the application device of the disc brake 1 in operative connection, wherein the back side 16 of the back-side pad 5 'is in contact with the inside of the back portion 4b of the caliper 4.

The lining carrier plates 5a, 5'a of the brake pads 5, 5 'each have two Be tenflächen 8 and bearing surfaces 7b on their underside.

The brake carrier 3 has two lining shafts 6, 6 '. Each lining shaft is laterally by Bremsträgerhörner 3a, 3b; 3'a, 3'b and fixed at the bottom of each of a bridge connector 3c, 3'c. The bridge connectors 3c, 3'c respectively connect the respective two brake carrier horns 3a, 3b; 3'a, 3'b in their lower areas.

In each lining shaft 6, 6 'in each case a brake pad 5, 5' is arranged. In this case, each brake pad 5, 5 'with its respective side surfaces 8 on Innenflä surfaces 7 of the brake carrier horns 3a, 3b; 3'a, 3'b, each brake pad 5, 5 'rests with its bearing surfaces 7b on respective bearing surfaces 7a of a respective bottom of the respective lining shaft 6, 6' of the brake carrier 3. The Base of the respective lining shaft 6, 6 'is in each case by the Brückenver binder 3 c, 3' c of the brake carrier 3 is formed.

The brake pads 5, 5 'are in the lining shafts 6, 6' parallel to the brake disc axis 2a in the y-direction slidably on the bearing surfaces 7a between the inner surfaces 7 of the brake carrier horns 3a, 3b; 3'a, 3'b guided out.

A lining retaining bracket BE (FIG. 1) is arranged above the brake linings 5, 5 'parallel to the brake disk rotational axis in the y-direction extending clamping section 4a and the back section 4b of the brake caliper 4. The

Pad retainer BE pushes up here with sections of its underside

Pad retaining springs 9, 9 'of both brake pads 5, 5', whereby the brake pads 5,

5 'are held in their lining shafts 6, 6'.

The brake pads 5, 5 'are in the case of braking on both sides of the brake disc 2 pressed, wherein they are moved in the y direction. The brake linings 5, 5 'can be removed for a change from their associated lining shafts 6, 6' in the z direction and used again therein.

The braking takes place by means of the brake application in the receiving portion 4a of the caliper 4 there arranged in a receiving space, e.g. with a brake lever. The application-side brake pad 5 first contacts the brake disk 2 during braking. In the further course, the brake caliper 4 is displaced oppositely by means of auftre tender reaction forces, taking along the back-side pad 5 'until it also comes rubbing on the brake disc 2 to the plant.

After releasing the brake, the two opposing brake pads 5, 5 'are released so far from the brake disk 2 by means of the pad restoring device 100, that they are free relative to the brake pads 5, 5'.

In this way, by the return of the brake pads 5, 5 'of the brake disc 2 by means of the lining restoring device 100, a residual grinding of the respective brake pad 5, 5' on the brake disc 2 excluded or at least significantly reduced. A service life of the friction partner brake pads 5, 5 'and the brake disc 2 is increased and a fuel consumption is reduced. In this case, the pad restoring device 100 exerts on each brake pad 5, 5 'a force which is referred to as a restoring force in the following. This restoring force moves the respective brake pad 5, 5 'as well as the brake caliper 4 on the back-side brake pad 5 in the direction of the brake disc axis 2a of the brake disc 2 away. In other words, the application-side brake pad 3 is verscho ben of the brake disc 2 in the opposite direction of a clamping force of the application device on the application section 4a of the caliper 4, wherein the back-side brake pad 5 'of the brake disc 2 in a direction opposite to the application-side brake pad 5 movement direction together with the caliper 4 is moved in the y direction.

The restoring force of the pad restoring device 100 is generated by one or more re restoring elements 10, 13, 18, 19, 21, which are mounted biased between the respec conditions brake pad 5, 5 'and a stationary reference. Under the fixed reference are components of the disc brake 1 to understand, which are fixedly connected to the vehicle to be assigned, such as the brake carrier. 3

The restoring force can be applied to the respective brake pad 5, 5 'as a tensile and / or compressive force.

To apply the restoring force to the respective brake pad 5, 5 'engages the pad restoring device 100 on the respective brake pad 5, 5' for example centrally on an edge region (side edge and / or lower edge) of the lining carrier plate 5a, 5'a or symmetrically to two lateral Anlagebe ranges right and left. The investment areas can also be directly on each respective corner portions of the lining carrier plates 5a, 5a below. It is of course also possible that points of attack or areas on the respective lining carrier plate 5a, 5'a also arbitrarily, e.g. centrally between a respective side and a central point, can be arranged.

In the embodiment shown in Figures 2 and 3, the force storage elements of the pad resetting device 100 as return elements 10 are ausgebil det and each engage in a central region of a respective Seitenran of the lining carrier plate 5a, 5'a a brake pad 5, 5 '.

The pad reset device 100 comprises in this embodiment two return elements 10 per pad shaft 6, 6 '. Here is a reset item ment 10 at each a Bremsträgerhorn 3a, 3b; 3'a, 3'b attached. In Figures 2 and 3, respectively, the back side lining shaft 6 'is shown. The following explanations for this back-side covering shaft 6 'also apply to the application-side lining shaft 6.

The return elements 10 are constructed identically. Thus, the left in Figure 2 and 3 restoring element 10 is representative of all return elements 10 be written.

The return element 10 comprises a spring arm 10a and four holding sections 10b, 10c, 10d, 10e. The spring arm 10a has a free end and is connected at the other end to the first holding portion 10b. An angle between tween the spring arm 10 a and the first holding portion 10 b is greater than 90 °, for example 1 10 ° to 130 °. The other end of the first holding portion 10b is connected to the second holding portion 10c, which projects to the same side as the spring arm 10a from the first holding portion 10b and encloses with this an angle of about 135 ° to 155 °. In this case, the second holding portion 10c is inclined away from the spring arm 10a. The second Halteab section 10c is in the third holding portion 10d, wherein the third holding portion 10d extends to the first holding portion 10b at an angle of about 90 °. Finally, the third holding portion 10d passes into the fourth holding portion 10e attached thereto at approximately a right angle, which tapers toward the spring arm 10a.

A length of the spring arm 10a corresponds approximately to a length of the inner surface 7 of the Bremsträgerhorns 3a, 3b; 3'a, 3'b in the y-direction, ie in the direction of the brake disk axis of rotation 2a. A length of the first holding portion 10b ent speaks in about a quarter of the length of the spring arm 10a and a length of a central outer portion of the Bremsträgerhorns 3a, 3b; 3'a, 3'b in the y direction in a central area. The angled second holding portion 10c has about two thirds of the length of the spring arm 10a, wherein the Län conditions of the third and fourth holding portion 10d, 10e are approximately equal. Since the return element 10 on the Bremsträgerhorn 3a, 3b; 3'a, 3'b is pushed and fastened, e.g. by jamming, the above-stated lengths depending on the outer contour of the Bremsträgerhorn 3a, 3b; 3'a, 3'b vary.

The return element 10 is made here as a one-piece stamped and bent part, for example, made of a flat spring steel with a rectangular cross-section. In the assembled state, the holding portions 10b, 10c, 10d, 10e engage around the outer contour of the Bremsträgerhorns 3a, 3b; 3'a, 3'b in the manner of a bracket. Since at is the first holding portion 10b on the outside of the Bremsträgerhorns 3a, 3b; 3'a, 3'b arranged and has either the back portion 4b or application section 4a of the caliper 4. The fourth holding portion 10e is there at approximately parallel to the first holding portion 10b on the side of the brake carrier horn 3a, 3b; 3'a, 3'b, which faces the brake disc 2. The spring arm 10a is inclined from the inner surface 7 of the Bremsträgerhorns 3a,

3b; 3'a, 3'b resiliently into the lining shaft 6, 6 ', the free end of the spring arm 10a facing the brake disk 2.

When the associated brake pad 5, 5 'is inserted into the respective lining shaft 6, 6', its side surfaces 8 press the respective spring arm 10a against its spring force in the direction of the respective inner surface 7 of the respective associated brake carrier horn 3a, 3b; 3'a, 3'b, wherein the respective spring arm 10a is tensioned. In a braking operation, the brake pads 5, 5 'further pressed in the y-direction against the brake disc 2, wherein the spring arms 10a of the side surfaces 8 of the brake pads 5, 5' then to rest against the inner surfaces 7 of the brake carrier horns 3a, 3b; 3'a, 3'b pressed and continue to be ge spans.

When releasing the brake, the brake pads 5, 5 'then made by the previously ge stretched spring arms 10 a of the pad resetting device 100 in their initial positions back. This is effected by a force component of the spring force of the spring arms 10 a, which acts in the y-direction away from the brake disc 2. The spring arms 10a are in contact with the lining carrier plate 5a, 5'a of the respective brake pad 5, 5 'in such a way that they engage in a central region of the sides on the edge of the side surfaces 8. In other words, per covering shaft 6, 6 'engage the return elements 10 both sides of the shaft 6, 6' on the brake carrier horns 3a, 3b; 3'a, 3'b and be act by the respective angled spring arm 10a, the restoring effect on the respective brake pad 5, 5 '.

The return elements 10 exert with their spring arms 10a compressive forces to return the brake lining 5, 5 'on this.

It is also conceivable that the spring elements 10 are configured with more than one spring arm 10a. The brake carrier horns 3a, 3b; 3'a, 3'b can be processed to better conditioning the holding portions 10b, 10c, 10d, 10e accordingly. The Innenflä surface 7 may have a corresponding to the spring arm 10 a groove 7 c, in which the spring arm 10 a in the tensioned state with inserted Bremsbe was 5, 5 'and applied brake is received.

In this example, the pad restoring device 100 is attached to the brake carrier 3. The brake pads 5, 5 'are unchanged in this embodiment.

FIGS. 4 and 5 show schematic perspective partial views of a first variant of the pad return device 100 of the disc brake 1 according to FIG. FIG. 6 shows a schematic perspective view of a restoring element 13 of the variant of the pad restoring device 100 according to FIGS. 4 and 5.

In the first variant of the lining restoring device 100, the brake pads 5, 5 'are provided with return elements 13, wherein the brake carrier 3 can remain unverän changed. Thus, the lining restoring device 100 here a rear adjusting element 13 per brake pad 5, 5 '. In Figure 4, the backside

Brake pad 5 'with the back portion 4b and a tie bar 4c of the

Brake caliper 4 and the back-side longitudinal connector 3'c of the brake carrier 3 shown in a sectional plane which lies in the brake disc axis of rotation 2a and extends along this. FIG. 5 shows a brake lining 5, 5 'in general in a perspective view with a section through the median plane as in FIG. 4.

The restoring element 13 is arranged centrally in a lower region of the brake pad 5, 5 'in a central plane, which also extends through the brake disk axis of rotation 2a, installed. A first part of the return element 13 is in a savings from 1 1, 12 of the brake pad 5, 5 'arranged. A second part of the rear adjusting element 13 is located on the back side 16 of the lining carrier plate 5 a, 5 a and is in contact with the stationary longitudinal connector 3 c, 3 'c of the brake carrier 3. This will be described in detail below.

The recesses 1 1, 12 are provided here with a circular cross-section and communicate with each other, wherein they are arranged coaxially one behind the other in the y-direction. Starting from the friction side (ie, the contact side of the friction lining 5b, 5'b, which is brought into contact with the brake disk 2 during braking is) of the friction lining 5b, 5'b of the brake pad 5, 5 ', the first recess 1 1 extends through the friction lining 5b, 5'b and then goes into the second recess 12 in the lining carrier plate 5a, 5'a over. The second recess 12 extends approximately over three quarters of the lining carrier plate 5a, 5'a of the

Pad side 5c, 5'c up to a wall portion 12a of the pad carrier plate 5a, 5'a and then passes into a through hole 12b with a smaller diameter. The through hole 12b extends through the wall portion 12a of the lining carrier plate 5a, 5'a to its back side 16, 5d.

The restoring element 13 comprises a cylindrical pin 13 a, a support arm 14 and a force storage element 15.

The cylindrical pin 13a of the return element 13 is here a pin with a circular cross-section and has at one end a head 13b whose diameter is larger than the diameter of the cylindrical pin 13a. The other end of the cylindrical pin 13 a is referred to as end portion 13 c and is connected to the support arm 14. The energy storage element 15, here in the form of a compression spring, is pushed onto the cylindrical pin 13 a and arranged circumferentially around this between the head 13 b and the support arm 14, wherein it extends over about two thirds of the length of the cylindrical pin 13 a and with one end to the Head 13b of the cylindrical pin 13a is supported. The other end of the power storage element 15 is within the second recess 12 on the In nenseite of the wall portion 12 a of the lining carrier plate 5 a, 5 'a, when the return element 13 is installed.

When installed, the first part of the return element 13, which here about two thirds of the length of the cylindrical pin 13a, the head 13b and the power storage element 15 includes, as already mentioned above, in the Aussparun conditions 1 1, 12 are arranged. The other third of the cylindrical pin 13 extends through the through hole 12 b, wherein the end portion 13 c of the cylin derstiftes 13 a from the back side 16, 5 d protrudes and is connected to the support arm 14. The cylinder pin 13a is slidably guided in the through hole 12b in its longitudinal direction which is parallel to the disk rotation axis 2a.

The support arm 14 is made of a flat metal material, such as spring steel, here with rectangular cross section, with a body 14 a, a connecting end 14 b and an end portion 14 c. The body 14a is connected to the connecting end 14b, which is square here, with the end portion 13c of the cylindrical pin 13a firmly connected. This connection is made after insertion of cylindrical pin 13a and force spring element 15 in the recesses 1 1, 12, wherein the end portion 13c protrudes from the through hole 12b and then with the connection end 14b of the support arm 14, for example by welding, rivets or the like. is connected.

The body 14a of the support arm 14 extends in the installed state of the return element 13 in the z-direction on the brake disc axis 2a on the longitudinal connector 3c, 3'c of the brake carrier 3 and is in its shape to the Au ßenkontur the longitudinal connector 3c, 3'c of the Brake carrier 3 adapted. In this case, the body 14a here is cranked pointing away from the brake disk 2. A free end of the body 14 a is gebo conditions as the end portion 14 c to the brake disc 2 and bent around a lower edge of the longitudinal connector 3 c, 3 'c of the brake carrier 3.

The support arm 14 forms in this way a support of the cylindrical pin 13 a of the return element 13 in the y-direction parallel to the Bremsscheibendrehach se 2 a each in the direction of the brake disc 2 out. Thus, the Rückstellele element 13 of the brake pad 5, 5 'is arranged stationary.

The force for returning the brake pad 5, 5 'and the caliper 4 is ensured by means of the force storage element 15. When applying the brake se, the brake lining 5, 5 'is pressed against the brake disc 2 and against the force of the energy storage element 15 of the return element 13, wherein the force storage element 15 is tensioned. This is made possible by the fact that on the wall portion 12a of the lining carrier plate 5a, 5'a resting force storage element 15 against the head 13b of the support arm 14 stationary cylinder pin 13a is compressed. The power storage element 15 may also be installed before cocked.

When the brake is released, the force stored in the tensioned force storage element 15 then acts in the direction of the brake disk axis 2a in the y direction so that the brake lining 5, 5 'is returned to its original position. The stored force acts as a compressive force on the Bremsbe lag 5, 5 'on the wall portion 12 a of the lining carrier plate 5 a, 5' a, wherein the force storage element 15 is supported on the head 13 b of the supporting arm 14 by means of the stationary held cylindrical pin 13 a. In this example, only one return element 13 is provided. But it is also conceivable that two or more restoring elements 13 are arranged distributed over the lower edge of the lining carrier plate 5a, 5'a.

FIG. 7 shows a schematic perspective partial view of a second variant of the lining restoring device 100 of the disk brake 1 according to FIG. 1.

The second variant of the pad restoring device 100 has a restoring element 18 per brake pad 5, 5 ', which on the back side 16, 5 d of the

Pad carrier plate 5a, 5'a of the brake pad 5, 5 'is attached. In Figure 7 is as a case of play to a view of the back side 16 of the lining carrier plate 5'a the back-side pad 5 ', which is located in the associated pad shaft 6' of the brake carrier 3 between the brake carrier horns 3'a, 3'b. The description also applies analogously to the application-side brake pad 5. The brake pad 5 'lies with its side surfaces 8 on the inner surfaces 7 of the brake carrier horns 3'a, 3'b and stands with its bearing surfaces 7b on the bearing surfaces 7a of the brake carrier. 3 ,

The return element 18 of the pad resetting device 100 is formed here as a längli Ches leaf spring element made of spring steel with a rectangular cross-section and is centrally in the lower region of the lining carrier plate 5'a via a fastening transmission element 17 on the backing plate 5'a on the back side 16 taken fastened. The return element 18 extends symmetrically to a symmetry axis, which in the z-direction, i. radially to the brake disk axis of rotation 2a, extends centrally through the fastener 17, to the left and to the right, i. tangential to the brake disc 2, beyond the respective side edge of the lining carrier plate 5'a addition to about the respective Bremsträgerhorn 3'a, 3'b addition.

The return element 18 comprises in this second variant a central loading fastening portion 18 a, to which at each end in each case three spring portions 18 b, 18 c, 18 d are mounted.

The attachment portion 18a is connected via the fastening element 17 fixed to the lining carrier plate 5a, 5'a, for example in a press fit. The ends of the attachment portion 18 a are bent from the back side 16. These bows go in each case in the ends of the first spring portions 18 b, wherein the first spring portions 18 b then bulge outward, ie further from the Rü ckenseite sticking, and then bent with their ends back to the back side 16 out. At these ends of the first spring portions 18b is a respective second, shorter spring portion 18c mounted, which is arched to the back side 16, rests with its curvature partly on the back side 16, then bent with its end outward and merges into the respective third spring portion 18d. The spring sections 18d are bent in such a way that their bulges protrude from the rear side 16 and their ends rest on the respective associated brake carrier horn 3'a, 3'b on its outer contour. Thus, a stationary support of the lining restoring device 100 is realized with the rear adjusting elements 18.

In one embodiment, which is not shown, but is easy to imagine, two or more return elements 18 can be vorgese hen arranged in the z-direction superimposed. It is also conceivable that the return element 18 has two or more spring sections 18d on each side.

When applying the brake, the brake pad 5, 5 'is pressed against the brake disc 2 against the spring force of the return element 18, wherein the return element 18 is tensioned. It can also be cultivated already biased. The return element 18 is designed so that it allows lateral support with its third spring portions 18d to the brake carrier horns 3'a, 3'b it. By this support, a resilient effect between the movable in the y direction brake pads 5, 5 'and the stationary brake carrier 3 be acts and the reset function of the pad resetting device 100 realized by means of the return elements 18.

When releasing the brake then stored in the cocked return element 18 acts such force in the direction of the brake disc axis 2a in the y direction via the mounting portion 18a on the brake pad 5, 5 ', that the brake pad 5, 5' again from the brake disc 2 in its initial position is zurückge. In this case, tensile forces act through the tensioned return element 18 for returning the brake lining 5, 5 '.

A processing of the brake carrier horns 3a, 3b; 3'a, 3'b is not required. Nevertheless, it is conceivable that they cut 18d of the return element 18 for contact with the third Federab a receiving or bearing surface can have.

FIG. 8 shows a schematic perspective partial view of a third variant of the lining restoring device 100 of the disk brake 1 according to FIG. FIG. 9 shows a schematic perspective view of a restoring element 19 of the third variant of the lining restoring device 100 according to FIG. 8.

The Belagückstelleinrichtung 100 has in the third variant two Rückstellele elements 19 per brake pad 5, 5 ', both on the respective brake pad 5, 5' and to the respectively associated Bremsträgerhörnern 3a, 3b; 3'a, 3'b be strengthened.

FIG. 8 shows by way of example a part of the application-side brake lining 5 with the associated brake carrier horn 3a of the lining shaft 3. The description also applies analogously to the back-side brake lining 5 '.

The return elements 19 are attached on the one hand on the sides of the back side 5d of the lining carrier plate 5a approximately in a central region. On the other hand, the return elements 19 are brought to the outer sides of the brake carrier horns 3a, 3b. In the example shown in FIG. 8, the restoring elements 19 are fixed in a foot region of the brake carrier horns 3 a, 3 b to the brake carrier 3, thus, below the center in the z direction.

A structure of the return element 19 is shown in perspective in Figure 9. The return element 19 has a spring portion 19 a, at the ends of each a mounting portion 19 b, here in the form of a tab with a loading fastening hole 19 c is mounted.

The spring portion 19 a here consists of a meander-shaped spring folded steel from a flat material. The folds lie in planes which run at right angles to planes of the fastening sections 19b. The folded imple mentation of the spring portion 19 a makes it possible to ensure a functioning of the return element 19 over a longer spring travel.

The attachment portions 19b allow attachment of the Rückstellele Mentes 19 with one end to the pad back plate 5a on the back side 5d and with the other end on the Bremsträgerhorn 3a, 3b. The attachment is carried out here, for example by means of rivets and / or screws, each extending through the mounting hole 19c Weil and a respective fastening tion point 20, 20a form. It is of course possible that the attachment can also be made in different forms, eg press fit. Weiterhein it is conceivable that per page not only a return element 19, son two or more may be provided.

In the example shown in FIG. 8, an imaginary longitudinal axis of the restoring element 19 extends through the fastening holes 19c in an x-z plane. In the assembled state of the restoring element 19, this is arranged so that the imaginary longitudinal axis is inclined at a certain angle with respect to the x-axis. In this case, the attachment point 20 of the Rückstellele Mentes 19 is located on the pad back plate 5a of the brake pad 5 in the positive z direction above the attachment point 20a of the return element 19 to the associated Bremsträgerhorn 3a, 3b.

When applying the brake, the brake lining 5, 5 'is pressed against the brake disk 2 and against the spring force of the restoring element 19 acting here as a tensile force, the restoring element 19 being tensioned. At both fastening points distribution 20, 20a occurs while a tensile force. The return element 19 can also be mounted biased.

When releasing the brake, the force stored in the cocked return element 19 then acts in the direction of the brake disk axis 2a in the y-direction via the one attachment section 19b in the attachment point 20 on the brake pad 5, 5 'and on the other attachment portion 19b in fastening fastening point 20a the stationary Bremsträgerhorn 3a, 3b. The brake pad 5, 5 'is then back from the brake disc 2 in its initial position ge provides. In this case, the tensile forces act through the tensioned return element 19 for returning the brake pad 5, 5 '.

The zuspannseitige brake pad 5 shown in Figure 8 has on its sides in the middle region in each case a non-designated nose-shaped recess which extends in each case to the center of the brake pad 5 back. As a result, a lateral projection is formed on both sides of the brake lining 5. The affiliated conditions Bremssträgerhörner 3 a, 3 b each have a vorste in the lining shaft 6 rising nose, which is received in the respective nose-shaped recess of the brake pad 5. In this case, the brake lining 5 is axially in the direction of the brake disc axis 2a parallel to this in the lining shaft 6, but not radially inserted from above. The lateral projections of the brake pad 5 are received in this way in a respective recess of the associated brake carrier horns 3a, 3b below the protruding into the lining shaft 6 nose. In this way, results for this zuspannseitigen Bremsbe- 5 was only one degree of freedom of axial displacement parallel to the brake disc axis of rotation 2a, whereby this application-side brake pad 5 is hold radially ge.

10 shows a schematic perspective partial view of a fourth variant of the lining restoring device 100 of the disk brake 1 according to FIG. 1. FIG. 11 shows a schematic perspective view of a restoring element 21 of the fourth variant of the lining restoring device 100 according to FIG.

The lining restoring device 100 of the fourth variant comprises a Rückstellele element 21 per brake pad 5, 5 ', which is fixedly attached to the associated longitudinal connector 3 c, 3' c of the brake carrier 3.

Figure 10 shows an example of a part of a brake pad 5, 5 'with the associated longitudinal connector 3c, 3'c of the brake carrier 3. The description applies to the application-side and the back-side brake pad 5'. FIG. 10 shows a section in an x-z plane in the brake disk rotational axis 2 a and thus through the center of the brake pad 5, 5 'as well as the longitudinal connector 3 c, 3' c of the brake carrier 3.

The return element 21 is arranged on the longitudinal connector 3 c, 3 'c in the middle and attached to the longitudinal connector 3 c, 3' c by clamping action. It thus forms a fixed attachment. Furthermore, the restoring element 21 is in contact with the lining carrier plate 5a, 5'a of the brake lining 5, 5 'and effects a restoring effect on the brake lining 5, 5' and the brake caliper 4 at this interface.

The restoring element 21 of the fourth variant comprises a pressure section 21a, a spring section 21b and five retaining sections 21c, 21d, 21e, 21f, 21g.

The pressure section 21 a consists here of a winding which is cut over the Federab 21 b attached to one end of the first holding portion 21 c. The beginning of the winding forms a free end, which lies in the center of the winding. The other end of the winding has an arc with a radius which is substantially larger than the winding radius. This arc forms the spring portion 21 b, is bent down and merges into the opposite bent, short first holding portion 21 c. At the first holding portion 21 c of the right angles bent downward second holding portion 21 d is introduced, which is approximately the same length as the first holding portion 21 c on has. The lower end of the second holding portion 21 d is connected to one end of the third holding portion 21 e, which is perpendicular to the second Hal teabschnitt 21 d and parallel to the first holding portion 21 c. A length of the third holding portion 21 e corresponds to approximately four times the length of the second holding portion 21 d. The other end of the third holding portion 21 e is in the attached thereto fourth holding portion 21 f in a rounding over. The fourth holding portion 21 f is perpendicular to the third Halteab section 21 e upwards. A length of the fourth holding portion 21 f corresponds to egg ner length of the second holding portion 21 e, to which the fourth holding portion 21 f also parallel. At the upper end of the fourth holding portion 21 f is followed by the fifth holding portion 21 g which is perpendicular to the fourth holding portion 21 f, about half the length as the second holding portion 21 c and the fourth holding portion 21 f and parallel to the third holding section 21 e is.

In other words, the holding portions 21 c, 21 d, 21 e, 21 f, 21 g form a C shape. In this case, the spring portion 21 b is formed with the pressure portion 21 a on one of the short legs of the C-shape on the first holding portion 21 c. A center of the pressure portion 21 a is located approximately opposite the center of the long leg of the C-shape, which forms the third holding portion 21 e.

The relative lengths for the holding portions 21 c, 21 d, 21 e, 21 f, 21 g are only to be seen as examples and correspond to the outer contour of the respective longitudinal connector 3 c, 3 'c, to which the return element 21 is attached.

The return element 21 is here a flat spring steel with a rechteckförmi gene cross-section and integrally formed as a stamped and bent part, wherein the printing section 21 a is performed rolled.

When installed, the restoring element 21 is with its holding portions 21 c, 21 d, 21 e, 21 f, 21 g clip-like around the longitudinal connector 3 c, 3 'c of the brake carrier 3 around and attached to this by clamping action of Halteab sections 21 c, 21 d, 21 e, 21 f, 21 g fixed. In this case, the pressure section 21a and the spring section 21b are arranged on the upper side of the longitudinal connector 3c, 3'c and in a recess 11a of the friction lining 5b, 5'b of the brake lining 5, 5 '. The pressure section 21a is in contact with a contact surface 22 of the lining side 5c, 5'c of the lining carrier plate 5a, 5'a of the brake lining 5, 5 'in the lower region. The return element 21 may also be installed under bias, so that a biasing force of the spring portion 21 b of the return element 21 the Pressure section 21 a against the contact surface 22 of the lining carrier plate 5 a, 5 'a presses.

Also in this variant, it is conceivable that not only one return element 21, but two or more are provided.

When the brake is applied, the brake pad 5, 5 'against the brake disc 2 and pressed against the spring force of the return element 21, wherein the spring portion 21 b is tensioned by the pressure portion 21 a. Also, the second holding portion 21 d may have a spring action. In this case, the return element 21 via the holding portions 21 e, 21 f, 21 g in the y-direction fixed to the longitudinal connector 3 c, 3 'c of the brake carrier 3 is fixed.

When releasing the brake then acts in the cocked return element 21 stored force of the spring portion 21 b (and the pressure portion 21 a soweie the first and second holding portion 21 c, 21 d) in the direction of the brake disc axis 2 a in the y-direction over the printing section 21 a on the Kontaktflä surface 22 of the lining carrier plate 5 a, 5 'a of the brake pad 5, 5' so that the brake pad 5, 5 'is again set by the brake disc 2 in its initial position to return. This pressure forces by the tensioned Rückstellele element 21 for returning the brake pad 5, 5 'act.

In the figure 12 is a schematic perspective view of another Ausfüh approximately example of the disc brake 1 according to the invention with the

Belagückstelleinrichtung 100 shown.

The disc brake 1 of this further embodiment differs from the disc brake 1 of Figure 1 in that the application side Bremsbe was 5 according to the zuspannseitigen brake pad 5 shown in Figure 8 with only egg nem degree of freedom in the direction of the brake disc axis 2a is formed.

In this case, the disc brake 1 of the further exemplary embodiment according to FIG. 12 has a lining retaining bracket BE 'which, in contrast to the lining retaining bracket BE of the disk brake 1 of the exemplary embodiment according to FIG. The pad retaining bracket BE 'therefore extends from its attachment to the back portion 4b of the caliper 4 in Rich tion of the brake disc axis 2a only to the back side Bremsbe was 5', whereby the back-side brake pad 5 'is secured radially. In addition is In this case, access to the brake pads 5, 5 'through the opening in the brake caliper 4 between the back portion 4b and the application section 4a easier.

The described exemplary embodiments of the lining restoring device 100 can be used both in the application-side brake lining 5 and in the back-side brake lining 5 '. It is possible that both brake pads 5, 5 'or even one, either the application-side brake pad 5 or the back-side brake pad 5' with a restoring device 100 can be hen verse.

The invention is to be modified within the scope of the appended claims.

Thus, it is possible, for example, not only an embodiment of the above-described NEN reset elements 10, 13, 18, 19, 21 but to apply, but also different variants of a disc brake. 1

LIST OF REFERENCE NUMBERS

1 disc brake

2 brake disc

2a brake disc rotation axis

3 brake carrier

3a, 3b; 3'a, 3'b Bremsträgerhorn

3c, 3'c longitudinal connector

4 caliper

4a Zuspannabschnitt

4b back section

4c tension strut

5, 5 'brake pad

5a, 5'a lining carrier plate

5b, 5'b friction lining

5c, 5'c lining side

5d back side

6, 6 'covering shaft

7 inside surface

7a, 7b bearing surface

7c groove

8 side surface

9, 9 'pad retaining spring

10 reset element

10a spring arm

10b, 10c, 10d, 10e holding section

1 1, 1 1 a recess

12 recess

12a wall section

12b through hole

13 return element

13a cylinder pin

13b head

13c end section

14 support arm

14a connection end

14b end section

15 energy storage element

16 back side 17 fastening element

18 return element 18a attachment portion

18b, 18c, 18d spring section

19 return element

19a spring section

19b mounting portion 19c mounting hole

20, 20a attachment point 21 return element

21 a pressure section

21 b spring section

21 c, 21 d, 21 e, 21 f Flalteabschnitt

22 contact area

100 pad reset device

BE, BE 'pad retainer

X, y, Z coordinate

Claims

claims

1. Disc brake (1) for a commercial vehicle, with a brake disc (2) cross-trained as a sliding caliper caliper (4), which is attached to egg nem stationary brake carrier (3), two in the caliper (4) angeord Neten, in opposite directions movable , a respective lining carrier plate (5a, 5'a) and a friction lining (5b, 5'b) mounted thereon having brake linings (5, 5 '), of which an action-side or zuspannseitiger brake pad (5), by means of a Zuspanneinrichtung via at least one Brake ram against the brake disc (2) can be pressed, wherein the brake pads (5, 5 ') in each case in a lining shaft (6, 6') of the stationary brake carrier (3) are received, wherein the lining shaft (6, 6 ') by two themselves opposite Bremsträgerhör ner (3a, 3b, 3'a, 3'b) and the Bremsträgerhörner (3a, 3b, 3'a, 3'b) connec Denden longitudinal connector (3c, 3'c) is set, and at least one rear adjusting device (100), with which the Bremsb mounts (5, 5 ') are traceable after a brake-related displacement and release of the brake,

characterized in that

at least one of the brake pads (5, 5 ') is associated with a Belagückstelleinrichtung (100), with which the at least one brake pad (5, 5') is traceable after a brake-induced displacement and release of the brake.

2. Disc brake (1) according to claim 1,

characterized in that

the lining restoring device (100) of the associated one brake pad (5, 5 ') has two restoring elements (10), of which in each case one restoring element (10) is attached to one respectively of the opposing brake carrier horns (3a, 3b; 3'a, 3'b) a lining shaft (6, 6 ') of the stationary brake carrier (3) be strengthened.

3. Disc brake (1) according to claim 2,

characterized in that

the restoring elements (10) each have a spring arm (10a) and holding sections (10b, 10c, 10d, 10e), the respective spring arm (10a) being attached to one of the holding sections (10b, 10c, 10d, 10e).

4. Disc brake (1) according to claim 3,

characterized in that

the return elements (10) with their respective holding sections (10b, 10c,

10d, 10e) on the respective brake carrier horn (3a, 3b, 3'a, 3'b) of the Cover shaft (6, 6 ') are pushed and fastened, wherein the spring arms (10a) in each case in the lining shaft (6, 6') protrude.

5. Disc brake (1) according to claim 4,

characterized in that

the respective holding sections (10b, 10c, 10d, 10e) of the restoring elements (10) form a kind of clamp and on the respective brake carrier horn (3a, 3b; 3'a,

3'b) of the lining shaft (6, 6 ') are attached by jamming.

6. Disc brake (1) according to claim 5,

characterized in that

the spring arms (10a) of the return elements (10) having a lining carrier plate (5a, 5'a) of the associated brake lining (5, 5 ') which is located in the lining shaft (6, 6') between the brake carrier horns (3a, 3b; a, 3'b) is in contact, in such a way that the respective spring arm (10a) in a central region of an edge of a side surface (8) of the lining carrier plate (5a, 5'a) with the lining carrier plate (5a, 5'a ) is in contact by action of a spring force of the spring arm (10a).

7. Disc brake (1) according to claim 1,

characterized in that

the Belagückstelleinrichtung (100) of the associated a brake pad (5, 5 ') at least one return element (21) which on a Längsver binder (3 c, 3' c) of a lining shaft (6, 6 ') of the stationary brake carrier (3) attached is.

8. Disc brake (1) according to claim 7,

characterized in that

the return element (21) comprises a pressure section (21 a), a spring section (21 b) and holding sections (21 c, 21 d, 21 e, 21 f, 21 g), wherein the Druckab section (21 a) has a winding, which is mounted on the spring portion (21 b) at one end of a first holding portion (21 b).

9. Disc brake (1) according to claim 8,

characterized in that

the return element (21) with its holding portions (21 c, 21 d, 21 e, 21 f) in a clip around the longitudinal connector (3 c, 3 'c) of the brake carrier (3) around and placed on the longitudinal connector (3 c, 3' c ) by clamping action of the holding portions (21 c, 21 d, 21 e, 21 f, 21 g) is fixed.

10. Disc brake (1) according to claim 9,

characterized in that

the pressure section (21 a) and the spring section (21 b) on the upper side of the longitudinal connector (3 c, 3 'c) and in a recess (1 1 a) of the friction lining (5 b,

5'b) of the associated one brake pad (5, 5 ') are arranged, wherein the pressure portion (21 a) with a contact surface (22) of a lining side (5c, 5'c) of the lining carrier plate (5a, 5'a) of the associated a brake pad (5, 5 ') by action of a spring force of the spring portion (21 b) is in contact.

1 1. Disc brake (1) according to claim 1,

characterized in that

the lining restoring device (100) of the associated one brake lining (5, 5 ') has at least two restoring elements (19) which are fixed both to the one brake pad (5, 5') and to the respectively associated brake carrier horns (3a, 3b; 'a, 3'b) are attached.

12. Disc brake (1) according to claim 1 1,

characterized in that

the restoring element (19) has a spring section (19a), at the ends of which in each case a fastening section (19b) is attached.

13. Disc brake (1) according to claim 12,

characterized in that

the spring portion (19 a) consists of a meander-shaped folded spring steel be, wherein folds lie in planes that are perpendicular to planes of the fastening supply sections (19 b).

14. Disc brake (1) according to claim 13,

characterized in that

the return element (19) with one end on the Befestigungsab a section (19 b) on the pad back plate (5 a, 5 'a) of the associated brake lining (5, 5') on the back side (5 d, 16) and with the other end via the other attachment portion (19b) fixed to the Bremsträgerhorn (3a, 3b) of the associated lining shaft (6, 6 ') of the brake carrier (3) is fixed.

15. Disc brake (1) according to claim 1,

characterized in that the lining restoring device (100) of the associated one brake pad (5, 5 ') has at least one restoring element (13) which is attached to the brake pad (5, 5')

Pad carrier plate (5a, 5'a) of the associated a brake pad (5, 5 ') is attached.

16. Disc brake (1) according to claim 15,

characterized in that

the return element (13) comprises a cylinder pin (13a), a support arm (14) and a force storage element (15), wherein the return element (13) in a un direct region of the brake lining (5, 5 ') is installed.

17. Disc brake (1) according to claim 16,

characterized in that

the cylinder pin (13a) of the return element (13) has at one end a head (13b) whose diameter is greater than the diameter of the cylinder pin (13a), and at the other end to the support arm (14), wherein the Power storage element (15) on the cylinder pin (13 a) scho ben and circumferentially around the cylinder pin (13 a) between the head (13 b) and the support arm (14) is arranged.

18. Disc brake (1) according to claim 17,

characterized in that

the restoring element (13) is arranged in a lower region of the brake pad (5, 5 ') of the type that a section of the cylindrical pin (13a) with the head (13b) and the force storage element (15) in a recess (1 1) of the friction lining (5b, 5'b) and in a recess (12) of the lining carrier plate (5a, 5'a) communicating therewith, the force storing element (15) having at one end thereof on the head (13b) of the cylindrical pin (13b). 13 a) and with its other end on a wall portion (12 a) of the lining carrier plate (5 a, 5 'a) supported, wherein the cylindrical pin (13 a) through a through hole (12 b) of the wall portion (12 a) slidably guided therethrough and with his nem the other end, on which the support arm (14) is mounted, from a back side (16, 5 d) of the lining carrier plate (5 a, 5 'a) protrudes.

19. Disc brake (1) according to claim 18,

characterized in that

the support arm (14) has a body (14a), a connection end (14b) and an end portion (14c), the body (14a) being fixedly connected to the connection end (14b) with the other end of the cylindrical pin (13a), and Where- in which the body (14a) extends over the longitudinal connector (3c, 3'c) of the brake carrier (3) and is adapted in its shape to the outer contour of the longitudinal connector (3c, 3'c) of the brake carrier (3), wherein a free End of the body (14 a) as the end portion (14 c) around a lower edge of the longitudinal connector (3 c, 3 'c) of the brake carrier (3) is bent, whereby the support arm (14) as a stationary support from the restoring element (13) ,

20. Disc brake (1) according to claim 1,

characterized in that

the lining restoring device (100) of the associated one brake lining (5, 5 ') has at least one restoring element (18) which on the back side (16, 5d) of the lining carrier plate (5a, 5'a) of the associated brake lining (5,

5 ') is attached.

21. Disc brake (1) according to claim 20,

characterized in that

the restoring element (18) is designed as an elongated leaf spring element made of spring steel and is fastened centrally in the lower region of the lining carrier plate (5a, 5'a) to the back side (16, 5d) via a fastening element (17).

22. Disc brake (1) according to claim 21,

characterized in that

the restoring element (18) has a central fastening section (18a) with which it is fastened via the fastening element to the back side (16, 5d) of the lining carrier plate (5a, 5'a) of the associated brake lining (5, 5 '), and wherein at each end of the central mounting portion (18a) each have three spring portions (18b, 18c, 18d) are mounted.

23. Disc brake (1) according to claim 22,

characterized in that

the return element (18) symmetrical to a radially to a Bremsschei bendrehachse (2 a) extending axis of symmetry, the transmission member (17) centrally through the fastening, tangent to the brake disc (2) via a jewei time side edge of the lining carrier plate (5, 5 ' a) also extends beyond the respective belonging to Bremsträgerhorn (3'a, 3'b) addition.

24. Disc brake (1) according to claim 23,

characterized in that the respective third spring portions (18d) of the return element (18), which extend beyond the respective associated Bremsträgerhorn (3'a, 3'b) out, to the respective associated Bremsträgerhorn (3'a, 3'b) at the Au ßenkontur abut and form a fixed support of the return element (18).

25. Brake pad set for a disc brake (1) according to one of vorherge existing claims, comprising at least two brake pads (5, 5 '), each with a lining carrier plate (5a, 5'a) and one on the lining carrier plate (5a, 5'a) attached friction lining (5b, 5'b),

characterized in that

the brake pad set at least one Belagückstelleinrichtung (100) having two return elements (10) according to one of claims 2 to 6 for a brake pad belonging to (5, 5 ').

26. Brake pad set for a disc brake (1) according to one of vorherge existing claims, comprising at least two brake pads (5, 5 '), each with a lining carrier plate (5a, 5'a) and one on the lining carrier plate (5a, 5'a) attached friction lining (5b, 5'b),

characterized in that

the brake lining set at least one Belagückstelleinrichtung (100) with at least one return element (21) according to one of claims 7 to 10 for an associated brake pad (5, 5 '), wherein the associated brake lining (5, 5') has a recess (1 1 a) of the friction lining (5b, 5'b) for the arrangement of the at least one restoring element (21).

27. Brake pad set for a disc brake (1) according to one of vorherge existing claims, comprising at least two brake pads (5, 5 '), each with a lining carrier plate (5a, 5'a) and one on the lining carrier plate (5a, 5'a) attached friction lining (5b, 5'b),

characterized in that

the brake pad set at least one Belagückstelleinrichtung (100) with at least two return elements (19) according to one of claims 1 1 to 14 for an associated brake pad (5, 5 '), wherein the at least two return elements (19) on the associated a brake pad ( 5, 5 ') are fastened and for a fixed attachment to respectively associated brake carrier horns (3 a, 3 b, 3' a, 3 'b) have fastening elements.

28. brake pad set for a disc brake (1) according to one of vorherge existing claims, comprising at least two brake pads (5, 5 '), each with a lining carrier plate (5a, 5'a) and one on the lining carrier plate (5a, 5'a) attached friction lining (5b, 5'b),

characterized in that

the brake pad set at least one Belagückstelleinrichtung (100) with at least one return element (13) according to one of claims 15 to 19 for an associated brake pad (5, 5 '), wherein the at least one return element (13) on the associated a brake pad (5 , 5 ') is attached.

29. Brake pad set for a disc brake (1) according to one of vorherge existing claims, comprising at least two brake pads (5, 5 '), each with a lining carrier plate (5a, 5'a) and one on the lining carrier plate (5a, 5'a) attached friction lining (5b, 5'b),

characterized in that

the brake pad set at least one Belagückstelleinrichtung (100) with at least one return element (18) according to one of claims 20 to 24 for an associated brake pad (5, 5 '), wherein the at least one return element (18) on the associated a brake pad (5 , 5 ') is attached.