DE102016120481A1 - Disc brake for a commercial vehicle and brake pad set - Google Patents

Abstract

A disc brake (10) for a commercial vehicle, comprising a brake caliper (1) which engages over a brake disc (2) and is mounted on a stationary brake carrier (6) and has a central opening (9) over the brake disc (2) , two brake pads (3, 3 ') arranged in the brake caliper (1), which are movable in opposite directions, each having a lining carrier plate (4) and a friction lining (5) fastened thereon, one of which is an application-side or application-side brake lining (3), by means of an application device is at least one brake plunger against the brake disc (2) can be pressed, and at least one restoring device (8), with which the brake pads (3, 3 ') traceable to a brake-induced displacement and release of the brake, is formed so that the restoring device ( 8) in the opening (9) arranged spreading device (80) which acts on the upper edges of the brake pads (3, 3 '), with at least one energy storage erelement (17, 21). A corresponding brake pad set is provided.

Description

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 a sliding caliper brake (or floating caliper brake) disc brake, an action-side brake pad is pressed against a vehicle-mounted brake disc in the case of braking by means of a brake application, which is actuated pneumatically or by electric motor. In the further course of the braking process, the brake caliper, relative to the brake disc, is displaced counter to the application direction of the brake pad on the brake lining, and the opposite, reaction-side brake lining is 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 while depressurized, but abraded against the brake disc. The residual grinding moments of the brake linings which occur as a result during driving 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 during driving, for example, by a wobble of the brake disc and by vibrations and lateral acceleration when cornering. However, these effects are not sufficient to effectively prevent the mentioned residual grinding moments. Likewise, these effects can again lead to a concern of the brake pads on the brake disc after a release of the brake pads from the brake disc, which in turn can cause a residual grinding torque.

To address this problem is in the generic DE 10 2007 001 213 discloses a disc brake with a return device which is arranged in one of the guide rails, via which the caliper is slidably supported 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 restoring device can lead to problems with pneumatically operated disc brakes of heavy commercial vehicles, since here wide limits of variable influences by component tolerances and component deformations are effective that do not allow a safe function of this restoring device in each case.

Similar problems arise with a disc brake as in the DE 10 2012 006 111 A1 is thematized. In this case, a restoring device is arranged on the opposite side of the application device, the reaction-side brake pad facing side, whereby an effective, in particular automatic reset of the caliper is achieved, while minimizing interference with the system rigidity.

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

The DE 43 01 621 A1 describes a floating caliper disc brake with a stationary brake carrier, which has two projecting beyond the outer edge of a brake disc support arms, arranged on both sides of the brake disc, each having a friction lining and a back plate having brake shoes, which are slidably supported on the support arms, with a brake carrier axially slidably guided floating caliper, which surrounds the brake shoes and has a particular pressure on the brake shoes to the brake disc actuating device, with an axially acting in the brake release direction on the brake shoe spring arrangement, which supports the setting of a clearance between the brake shoes and brake disc after braking. The spring arrangement has at least one spreading spring, which is attached to a support arm of the brake carrier in the axial direction as a whole immovably, that the attachment to a located on the outer edge of the brake disc portion of the support arm, and that the spreading spring has at least two spring arms, the the spring plates of the brake shoes in the axial direction resiliently rest.

The US2014 / 0339026 A1 describes a spreading spring comprising a locking arm connecting the spreading spring to a brake component, a retraction arm; and biasing means disposed between the locking arm and the return arm, the biasing means comprising six spiral loops or more which store energy during brake activation and, once the braking operation is completed, retract the brake components (brake pad). It is a caliper in the form of a caliper, which is not a sliding caliper specified. This is suitable for a passenger vehicle, but not for a commercial vehicle.

The invention has for its object to further develop a disc brake of the generic type so that structurally simplest Means the life, in particular the brake pads and the brake disc increases and the total operating costs are lowered.

Another object is to provide a corresponding brake pad set.

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

The further object is achieved by a brake pad set with the features of claim 28.

A disc brake according to the invention for a commercial vehicle, with a brake disc cross-trained, designed as a sliding caliper, which is fixed to a stationary brake carrier and has a central opening above the brake disc, two arranged in the caliper, in opposite directions movable, each a pad carrier plate and a friction lining mounted thereon having brake linings, of which an action-side or zuspannseitiger brake pad, by means of an application device via at least one brake stamp against the brake disc can be pressed, and at least one restoring device, with which the brake pads are traceable after a brake-related displacement and release of the brake is designed so that the restoring device has a spreading device arranged in the opening, which acts on the upper edges of the brake linings, with at least one force storage element.

The inventive design of the disc brake synchronous recovery of both brake pads and a provision of the brake caliper is achieved with the brake released, the synchrony affects both the restoring forces as well as the return paths. In this case, a restoring force counteracts the respective application direction of the two brake linings, that is to say on the reaction-side (back-side) brake lining toward the seat back and on the action-side (application-side) brake pad to the saddle head (which is also referred to as the application section), e.g. to the pressure piece (s) of the application device, towards gap formation, i. Clearance, opposite the brake disc. The total provided clearance can thus be adjusted by the restoring device symmetrical to the brake disc.

The restoring device actively moves the respective brake pad away from the brake disc after each brake application and returns it in this way. Thus, a residual grinding torque, which can occur at a remaining after release of the brake brake disc and brake pad, can be prevented.

An inventive brake pad set for the disc brake according to the invention has at least two brake pads, each with a pad carrier plate and a mounted on the pad carrier plate friction lining. In addition, the brake pad set is provided with a return device.

In one embodiment, the at least one power storage element is mounted in the middle of the opening on a pad retaining bracket. This is advantageous space-saving.

Here, the pad retaining bracket U-shaped with two bracket arms can be formed from a wire, wherein the at least one force storage element is attached to the bracket arms. An advantage here is the ease of production.

It is also advantageous that at least one force storage element in the form of a compression spring is pushed onto each bail arm. Here, no additional spring holder is required.

In a further embodiment, it is provided that the yoke arms of the pad retaining strap extend through passage openings of the pad carrier plates of the brake pads, wherein the at least one force storage element pushed onto each pad arm is supported on the pad carrier plates. This arrangement can be pre-assembled.

In another embodiment, the bracket arms of the pad retaining bracket are by holding plates which are connected to the lining carrier plates of the brake pads, extend, wherein the at least one deferred on each clamp arm power storage element is supported respectively on the holding plates. This is advantageous because the brake pads do not need to be processed.

In an alternative embodiment, the at least one energy storage element is secured with holding portions on the bail arms of the lining holding bracket between the bail arms between the brake pads, wherein it is in each case with at least one spring arm with the lining carrier plates of the brake pads in contact. This results in a simple and space-saving design.

If at least one energy storage element is mounted between corner regions of the lining carrier plates of the brake linings, a high tilting safety of the brake linings by the spreading device can be made possible. A tilting is to be understood as pivoting of the brake pad about its transverse axis or vertical axis.

In this case, the respective at least one energy storage element with its end regions Be pushed guide elements which are attached to lining sides of the lining carrier plates of the brake pads. Thus, a secure mounting of the force storage elements can be achieved.

It is envisaged that the at least one energy storage element is designed as a compression spring and is installed under bias. Thus, no additional articulation points are necessary.

Although the brake pads are already returned by the spreader of the brake disc after a braking operation, but in this case the spreader engages only in an upper region of the brake pads. This attack area is outside a center of gravity of the respective brake pad and can lead to an inclination of the brake pads and promote oblique wear. Under the inclination is here to understand a so-called tilting of the respective brake pad about its longitudinal axis, which runs through its center of gravity. That is, the spreader may cause a tilting moment about the center of gravity of the brake pad.

By the term "out of center of gravity" is meant that a line of action of a restoring force in a projection on a vertical plane that is along the disc axis of rotation, through the center of gravity is not axial, i. not parallel to the brake disc axis, runs.

Therefore, it is provided in a preferred embodiment, that the restoring device has at least one Belagückstelleinheit. Thus, the provision of the brake pads can be additionally supported.

The pad reset units therefore have in addition to a reset function for the respective brake pad also the other function to prevent tilting of the respective brake pad. For this purpose, the pad resetting units engage at least in the third point of application, for example in the region of the middle friction radius, the center of gravity or in the center, i. centrally at the point of intersection of the imaginary transverse axis and longitudinal axis of the brake pad, symmetrically to the transverse axis at two contact areas on the right and left thereof on the longitudinal axis and / or in a lower edge region of the brake lining. In this way, the tipping moment generated by the spreading device can be reduced or even eliminated.

One embodiment provides that the lining restoring unit has at least one force storage element which is connected directly or indirectly with the brake caliper and with the brake lining on the application side. This results in a simple structure.

In a further embodiment, the at least one energy storage element is accommodated as a tension spring in a bore in the application section of the caliper and fixed with an end portion in the bore, wherein the other end portion is in engagement with a retaining lug on a pressure side of the lining carrier plate of the application-side brake pad. So a space-saving construction can be made possible.

It is advantageous if the bore in which the at least one force storage element is fixed is a threaded bore of a fastening element of a bottom plate of the application section, since no additional processing steps for the application section are required.

Alternatively, the at least one energy storage element can be accommodated as a tension spring in a cavity in the application section of the caliper and fastened with one end portion by means of a spreading spring behind a bottom plate, wherein the other end portion is in engagement with a retaining eye on a pressure side of the lining carrier plate of the brake application side brake pad. This construction saves space.

In another embodiment, the at least one power storage element is attached as a tension spring to a retaining lug of a base plate Zuspannabschnitts, wherein the other end portion is in engagement with a holding lug on a pressure side of the lining carrier plate of the application-side brake pad. This results in a simple assembly.

In an alternative embodiment, the disc brake further comprises a split caliper. Here, the at least one power storage element may be attached as a tension spring having an end portion on a holder which is fastened between the Zuspannabschnitt the first part of the caliper and the tension strut of the second part of the caliper, and wherein the other end portion with a retaining eye on a pressure side of the lining carrier plate the application-side brake pad is engaged. For this, no changes to the caliper are required.

In yet another embodiment, the pad restoring unit has radial bevels formed in guide grooves of support portions of the brake pad, the guide grooves cooperating with guide portions of the pad support plate of the application side pad, and the slopes in the direction of the brake disc on the application portion of the caliper are inclined towards. In this way, a provision of the brake pad can be supported by its weight. This execution but may also be in connection with other versions of advantage.

A further embodiment provides that the pad restoring unit has at least one power storage element as a tension spring which is connected directly or indirectly to the brake carrier and to the application-side brake pad. This may be particularly advantageous if this connection is made to the brake pad on the underside, since then a tilting moment remains low.

Thus, for example, guide grooves of support sections of the brake carrier, which in each case with guide portions of the lining carrier plate (4) of the application side brake pad in each case form a receptacle for the at least one force storage element, wherein the at least one energy storage element each having an end portion with the associated guide portion of the lining carrier plate the application side brake pad is connected, wherein the other end portions are each in engagement with an edge of the respective support portion. This is also due to a reduction or prevention of tilting moments of great advantage.

In yet another embodiment, the pad reset unit may be formed by a positive connection and / or an adhesive bond between a plunger and the application-side brake pad. This is an advantage since power storage elements are not necessary.

For this purpose, the positive connection a T-slot connection, wherein a pressure piece of the plunger has a projection with a head in T-shape, said projection is in engagement with a T-slot of a protrusion of the lining carrier plate of the application-side brake pad. This is an effective connection and easy to assemble.

A further embodiment provides separately or in addition to that, the lining restoring unit comprises two guide rods arranged parallel to each other, which are displaceably guided in the axial direction parallel to a brake disk axis of rotation on the underside of the brake caliper, wherein the guide rods each with a force storage element in the form of a Compression spring are provided and are connected to the pressure plate, wherein the pressure plate is coupled to the application-side brake pad. This results in an advantageous reset function in a space-saving design.

A still further embodiment provides that the Belagückstelleinheit has guide rods, which are each slidably mounted in guide projections of the saddle back and coupled to the back-side brake pad, wherein the guide rods are each provided with at least one force storage element, which is under tension and a tensile force on the back-side Brake lining exerted by the guide rods.

This structure is easily accessible through the opening and therefore advantageous easy to assemble.

In another embodiment, the pad restoring unit may comprise a return element, which is secured to the seat back of the caliper biased and is in contact with a spring arm with a lining side of the lining carrier plate of the back-side brake pad. This is particularly advantageous because it results in a space-saving design.

Yet another embodiment provides that the lining restoring unit of the back-side brake pad is formed by coupling portions of the saddle back of the caliper, wherein the coupling portions each have a vertical groove with a brake disk side vertical edge, wherein the lining carrier plate of the back side brake pad with upper corner regions of their respective side sections with each one in contact, wherein these corner portions of the side portions between the edge and the saddle back are arranged. This is an advantageous simple structure and results in a simple installation.

It is particularly preferred that the at least one pad resetting unit is at least in a third point of application in the range of the mean friction radius, the center of gravity or in the center, i. centrally at the intersection of an imaginary transverse axis and longitudinal axis of the brake pad, symmetrically to the transverse axis on two contact areas right and left attacks on the longitudinal axis and / or in a lower edge region of the brake pad and reduces a tilting moment generated by the spreader.

Further advantageous embodiments of the invention are characterized in the subclaims.

Embodiments of the invention will be described below with reference to the accompanying drawings.

• 1-4 schematische Perspektivansichten von Ausführungsbeispielen einer erfindungsgemäßen Scheibenbremse mit einer Rückstelleinrichtung;
• 5 eine schematische Perspektivansichten eines Federelementes;
• 6-10 schematische Perspektivansichten von weiteren Ausführungsbeispielen einer erfindungsgemäßen Scheibenbremse mit einer Rückstelleinrichtung;
• 11-12 schematische Perspektivansichten eines Bremsträgers mit Bremsbelägen und einer Funktionsgruppe der Rückstelleinrichtung;
• 13 eine schematische Perspektivansicht einer weiteren Belagrückstelleinheit der Rückstelleinrichtung mit einem geteilten Bremssattel;
• 14-18 schematische Ansichten weiterer Ausführungsbeispiele der Rückstelleinrichtung; und
• 19-21 schematische Ansichten von Belagrückstelleinheiten der Rückstelleinrichtung.

Show it:

• 1 - 4 schematic perspective views of embodiments of a disc brake according to the invention with a return device;
• 5 a schematic perspective views of a spring element;
• 6 - 10 schematic perspective views of further embodiments of a disc brake according to the invention with a return device;
• 11 - 12 schematic perspective views of a brake carrier with brake pads and a functional group of the return device;
• 13 a schematic perspective view of another Belagückstelleinheit the return device with a split caliper;
• 14 - 18 schematic views of further embodiments of the return device; and
• 19 - 21 schematic views of Belagückstelleinheiten the return device.

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

A "top" and a "bottom" of a brake pad 3 . 3. ' or a lining carrier plate 4 always refer to the installation situation of the respective brake pad 3 . 3. ' , This is the bottom of each brake pad 3 . 3. ' in the radial direction closer to a brake disc axis of rotation 2a a brake disc 2 as the top of this brake pad 3 . 3. ' ,

With the term "transverse axis" of the brake pad 3 . 3. ' is meant an imaginary axis, which in the installed state of the brake pad 3 . 3. ' radially to the brake disc axis of rotation 2a runs. A "longitudinal axis" of the brake pad 3 . 3. ' thus runs at right angles to the transverse axis and tangential to the brake disc 2 ,

1 shows a schematic perspective view of a first embodiment of a disc brake according to the invention 10 with a reset device 8th , In the 2 is a variant of the first embodiment according to 1 shown. 3 and 4 show further variants of the first embodiment according to 1 , 5 Fig. 3 is an enlarged schematic perspective view of a spring element 21 according to the variant 4 represents.

A caliper 1 engages over a brake disc 2 with a brake disk axis of rotation 2a , The caliper 1 is as a so-called sliding caliper relative to the brake disc 2 axially in the direction of the brake disc axis of rotation 2a slidable on a brake carrier 6 (in 11 best to recognize) attached. This is the caliper 1 with storage sections 11a over guide openings 11b (see eg 6 ) axially displaceably mounted on guide rails, not shown, with the stationary on the vehicle held brake carrier 6 are connected.

The caliper 1 includes a clamping section 11 , a saddleback 12 and two tie rods 13 , The application section 11 runs with one side parallel to the plane of the brake disc 2 on one side of the brake disc 2 , On the other side of the brake disc 2 is, also parallel to the brake disc 2 running, the saddle back 12 arranged. The saddleback 12 is with the Zuspannabschnitt 11 at one end, each with a tie rod 13 connected. The tie rods 13 Run substantially perpendicular to the application section 11 and saddleback 12 ,

The application section 11 has an interior, in which a not shown application device of the disc brake 10 is arranged. An opening of the interior faces the brake disc 2 and comes with a plate that acts as a floor pan 110 is closed (best to recognize in 6 ).

The application section 11 , the saddleback 12 and the tension struts 13 lay in this arrangement a central opening 9 between them, which is the brake disc 2 spans. The opening 9 has an imaginary longitudinal centerline, which in the plane of the brake disc 2 lies and the imaginary centers of the tension struts 13 combines. In addition, the opening points 9 another imaginary transverse centerline, which is an imaginary center of Zuspannabschnitts 11 with an imaginary middle of the saddleback 12 combines. The transverse center line runs parallel to the brake disk axis of rotation 2a , The longitudinal center line and the transverse center line intersect at an imaginary center, which here as the virtual center of the opening 9 referred to as.

On both sides of the brake disc 2 is each a brake pad 3 . 3. ' arranged. The between the brake disc 2 and the application section 11 the caliper 1 arranged brake pad 3 is referred to as action-side or also application-side brake pad. The other brake pad 3. ' is between the brake disc 2 and the saddleback 12 arranged and is as a back-side or reaction-side brake pad 3. ' denoted by the apostrophized reference numeral 3. ' from the application-side brake pad 3 distinguished.

Every brake pad 3 . 3. ' has a lining carrier plate 4 and one on the brake disc 2 facing side attached thereto friction lining 5 on a covering side 4a on, in function, ie during braking, against the brake disc 2 pressed. The other side of the lining carrier plate 4 will be referred to as the print page below 4b designated. So is the application-side brake pad 3 with its print side 4b with the application of the disc brake 10 in operative connection, wherein the pressure side 4b of back brake pads 3. ' with the inside of the saddle back 12 the caliper 1 in contact.

In the brake carrier 6 are the brake pads 3 . 3. ' in so-called lining shafts between two brake carrier horns 6a . 6'a arranged (see, eg 11 ), with side sections 4g their lining carrier plates 4 on the inside of the brake carrier horns 6a . 6'a issue. The brake pads 3 . 3. ' also lie with bearing surfaces 4f on the undersides of their lining carrier plates 4 on respective support sections 6d . 6'd (please refer 11 ) of a respective lining shaft floor of the brake carrier 6 on. The covering shaft bottom is in each case by a bridge connector 6d . 6'd of the brake carrier 6 formed (see 11 ).

The brake pads 3 . 3. ' are on both sides of the brake disc in case of braking 2 be pressed. The brake pads 3 . 3. ' are through the central opening 9 reachable for a change and maintenance. You can go through this central opening 9 be inserted into their associated Belichtschächte and removed again from it.

A rotary arrow around the brake disc axis of rotation 2a in 1 indicates a major direction of rotation for forward driving of the vehicle, the disc brake 10 is assigned to. With regard to the main direction of rotation of the brake disc 2 are at the disc brake 10 an inlet side IT and opposite an outlet side AS established. Accordingly, the brake carrier horns 6a . 6'a at the inlet side IT inlet side brake carrier horns 6a . 6'a and at the outlet side AS outlet side brake carrier horns 6a . 6'a called.

A braking takes place by means of the Zuspannabschnitt 11 the caliper 1 there arranged in a receiving space Zuspanneinrichtung, eg with a brake lever, in a dome of the caliper 1 is positioned and with one or more punches 22 (see eg 6 . 8th . 10 ) interacting via one or more plungers 23 . 30 the application-side brake pad 3 contact (see eg 6 . 8th . 16 ). The application-side brake pad 3 first contacts the brake disc during braking 2 , In the course of the caliper is occurring by means of reaction forces occurring 1 taking along the back-side brake pad 3. ' shifted in reverse until the back-side brake pad 3. ' also on the brake disc 2 comes rubbing to the plant.

In order to prevent a residual grinding torque, after a brake operation both the caliper must 3 as well as the brake pads 3 . 3. ' active from the brake disc 2 be reset or moved back. Therefore, after releasing the brake, the two opposing brake pads 3 . 3. ' by means of the return device 8th so far from the brake disc 2 solved that, the brake disc 2 opposite the brake pads 3 . 3. ' free running.

The reset device exercises 8th on every brake pad 3 . 3. ' a force, which is called restoring force hereinafter, which the respective brake pad 3 . 3. ' in the direction of the brake disc axis of rotation 2a from the brake disc 2 moved away. In other words, the application-side brake pad 3 gets off the brake disc 2 in the opposite direction of a clamping force of the application device on the Zuspannabschnitt 11 the caliper 1 shifted, with the back-side brake pad 3. ' from the brake disc 2 in to the application-side brake pad 3 opposite direction of movement together with the caliper 1 is moved.

The restoring force can be applied to the respective brake pad 3 . 3. ' be applied as tensile or / and compressive force.

To apply the restoring force to the respective brake pad 3 . 3. ' picks up the reset device 8th on the respective brake pad 3 . 3. ' For example, either centrally, on an upper and / or lower exposed edge region of the lining carrier plate, or symmetrically on two investment areas right and left. The investment areas can also directly at respective corner portions of the lining carrier plates 4 above and / or below. Of course, it is also possible that attack points or areas on the respective lining carrier plate 4 also arbitrarily, eg in the middle, can be arranged.

The reset device 8th has two main functions. The first main function is the centering of the caliper 1 ie that the virtual center of the opening 9 the caliper 1 with its imaginary longitudinal center line in an imaginary center plane of the brake disc 2 above this lies. The second major function is the brake pads 3 . 3. ' each back again.

For this purpose, the restoring device 8th one or more functional groups.

A first functional group is called a spreader 80 designated, which at the upper edges of the brake pads 3 . 3. ' attacks. The attack of the spreader 80 on the two brake pads 3 . 3. ' Appropriately takes place on the respective lining carrier plate 4 of each brake pad 3 . 3. ' on the friction lining attached to it 5 facing lining side 4a or on the opposite back side as the pressure side 4b referred to as. To tilt the respective brake pad 3 . 3. ' in order to avoid its transverse axis in the provision, the spreader engages 80 either central, at an upper free lying edge region of the lining carrier plate 4 on or symmetrically on two areas right and left.

A second function group is called the Belay Reset Unit 81 . 81 ' wherein the pad reset unit 81 ' with the apostrophized reference number the back-side brake pad 3. ' assigned. Each brake pad 3 . 3. ' can be a Belagückstelleinheit 81 . 81 ' be assigned, it is also possible that only a brake pad 3 . 3. ' with a pad reset unit 81 . 81 ' is provided. The second function group acts on at least one third point of attack on the respective brake pad 3 . 3. ' one. This third point of attack can, for example, in the region of the central friction radius, the center of gravity or centrally, ie centrally in the intersection of the imaginary transverse axis and the longitudinal axis of the brake pad 3 . 3. ' , symmetrical to the transverse axis at two contact areas on the right and left of it on the longitudinal axis and / or in a lower edge area of the brake lining 3 . 3. ' lie.

The brake pads 3 . 3. ' Although already through the first functional group, ie the spreader, on the first main function of the seat centering of the brake disc 2 reset after a braking operation, but in this case the spreader 80 only in an upper area of the brake pads 3 . 3. ' attacks. This attack area lies outside a center of gravity of the respective brake pad 3 . 3. ' and can lead to an inclination of the brake pads 3 . 3. ' lead and promote oblique wear. Under the inclination is here a so-called tilting of the respective brake pad 3 . 3. ' to understand its longitudinal axis, which runs through its center of gravity. Ie that the spreader 80 a tilting moment about the center of gravity of the brake pad 3 . 3. ' can cause.

The term "outside a center of gravity" is understood to mean that a line of action of a restoring force in a projection on a vertical plane, along the brake disc axis of rotation 2a is not axially through the center of gravity, ie not parallel to the brake disc axis of rotation 2a , runs.

The slip reset units 81 . 81 ' Therefore, in addition to a reset function for the respective brake pad 3 . 3. ' also the other function, a tilting of the respective brake pad 3 . 3. ' to prevent. The cover reset units access this 81 . 81 ' at least in the third point of application, for example in the region of the middle friction radius, the center of gravity or in the center, ie centrally at the point of intersection of the imaginary transverse axis and the longitudinal axis of the brake pad 3 . 3. ' , symmetrical to the transverse axis at two contact areas on the right and left of it on the longitudinal axis and / or in a lower edge area of the brake lining 3 . 3. ' at. In this way, by the spreader 80 possible generated tilting moment can be reduced or even eliminated.

In the first embodiment according to 1 is a spreader 80 the return device 8th shown.

The spreader 80 includes a pad retaining bracket 16 and two power storage elements 17 ,

The pad retaining bracket 16 is of a wire U-shaped with two mutually parallel bracket arms 16a . 16b and an arcuate connection 16c educated. The hanger arms 16 . 16b run parallel to the brake disc axis of rotation 2a where it is symmetrical to the imaginary transverse center line of the opening 9 are arranged. The hanger arms 16 . 16b extend in the direction of the brake disc axis of rotation 2a over the entire width of the opening 9 through a raised edge region of each lining carrier plate 4 of each brake pad 3 . 3. ' through through holes 18 . 18 ' therethrough.

The free ends of the hanger arms 16a . 16b are in a holding section 14 of the tensioning section 11 the caliper 1 used and held. The opposite ends of the hanger arms 16a . 16b are over the arcuate connection 16c connected together and on a holding section 15 of the saddleback 12 the caliper 1 held. The connection 16c is still bent down. An unspecified locking element 15a stands with the connection 16c of the pad retaining bracket 16 in cooperation and fixes this axially and radially on the caliper 1 , In this way, the brake pads 3 . 3. ' through the pad retaining bracket 16 in their lining shafts between brake carrier horns 6a . 6'a held.

The energy storage elements 17 are designed here as compression springs, which between the brake pads 3 . 3. ' are arranged biased and each with one end to the lining side 4a the lining carrier plate 4 above the friction lining 5 the application-side brake pad 3 and each with the other end on the lining side 4a the lining carrier plate 4 above the friction lining 5 the backside brake pad 3. ' stay in contact.

Each energy storage element 17 is around a bail arm 16a . 16b arranged around. In each case, a bail arm extends 16a . 16b in the area between the lining carrier plates 4 the brake pads 3 . 3. ' by a force storage element 17 therethrough.

The energy storage elements 17 practice in this way each pressure forces on the brake pads 3 . 3. ' to the provision. When applying the disc brake 10 will the bias of a each energy storage element 17 additionally increased since the brake pads 3 . 3. ' to the brake disc 2 to be moved.

2 shows a variant of the spreading device 80 to 1 ,

In this variant are on the topsides 4i (see also 15 ) of the lining carrier plates 4 so-called pad retaining springs 7 arranged, which on projections 4c the lining carrier plates 4 are held.

The pad retaining springs 7 have in their central areas with respect to the brake disc axis of rotation 2a radial, U-shaped projections 7a on. The pad retaining bracket 16 is according to the embodiment according to 1 formed, with the hanger arms 16a . 16b also in each case by a trained as a compression spring force storage element 17 extend. Furthermore, the hanger arms are 16a . 16b on both sides of the projections 7a on the pad retaining springs 7 up and hold in this way the brake pads 3 . 3. ' in their lining shafts.

The energy storage elements 17 are also here as in the execution 1 between the brake pads 3 . 3. ' arranged, but are here in contrast to the execution after 1 with their juxtaposed ends each with a holding section 19 in contact. The holding sections 19 are, for example, as plates made of sheet metal and on a respective lining side 4a the brake pads 3 . 3. ' attached.

In the variant after 3 are the force storage elements 17 also between the brake pads 3 . 3. ' arranged. Contrary to the explanations after 1 and 2 are the force storage elements 17 here between the corner areas of the lining carrier plates 4 the brake pads 3 . 3. ' appropriate. The energy storage elements 17 are here with their end areas on guide elements 17a deferred, the on the lining sides 4a the lining carrier plates 4 are attached. This results in this variant, a large, in relation to the brake disc tangential distance between the force application points of the force storage elements 17 the spreader 80 the return device 8th with a high tilting safety when resetting the brake pads 3 . 3. ' ,

In the execution after 3 is a pad retainer 20 provided here, for example, made of a metallic sheet material as a stamped and bent part. This pad retaining bracket 20 lies with its underside on the pad retaining springs 7 the brake pads 3 . 3. ' on and is with a first end section 20a in the holding section 14 of the tensioning section 11 the caliper 1 established. A second end section 20b is on the holding section 15 of the saddleback 12 the caliper 1 with a bolt-like locking element 15a fixed.

The variant after 4 is similar to the variant 2 constructed, however, in contrast, a within the lining retaining bracket 16 arranged spring element 21 , which can also be referred to as a leaf spring element on. 5 shows the spring element 21 in an enlarged perspective view.

The spring element 21 is with holding sections on the bracket arms 16a . 16b of the pad retaining bracket 16 between the hanger arms 16a . 16b between the brake pads 3 . 3. ' attached, each with spring arms 21c . 21'c with the lining carrier plates 4 the brake pads 3 . 3. ' is in contact and exerts on each a compressive force.

The spring element 21 includes a rectangular central portion 21a , two holding sections 21 b, two spring arms 21c . 21'c and two printing sections 21d . 21'd each with a printing surface 21e . 21'e ,

On two opposite, parallel sides of the central section 21a is in each case a holding section 21b appropriate. Each holding section 21a is bent upwards in such a way that it has an inner profile, which with an outer profile of an associated bail arm 16a . 16b the U-shaped pad retaining bracket 16 corresponds. Here the profile is circular. An imaginary center axis of each holding section 21a runs in the installed state of the spring element 21 coaxial with each one arm 16a . 16b and parallel to the disc rotation axis 2a ,

At the other two opposite, parallel sides of the central section 21a is in each case a spring arm 21c . 21'c appropriate. Every spring arm 21c . 21'c extends from the plane of the central portion 21a at an angle in a range of about 30 ° to 45 ° down. A width of the last third of each spring arm 21c . 21'c towards decreases with respect to the width of the spring arm 21c . 21'c about halfway to the end of the spring arm 21c . 21'c out.

Each end of a spring arm 21c . 21'c is with a right-angled printing section 21e . 21'e connected, which extends upward. The length of each print section 21e . 21'e corresponds approximately to the width of the spring arm 21c . 21'c at the junction with the central section 21a , The outwardly facing surfaces of the printing sections 21e . 21'e each have a printing surface 21e . 21'e on.

When installed, the spring element is 21 with his spring arms 21c . 21'c over the printing surfaces 21e . 21'e the printing sections 21d . 21'd each with a portion of the lining side 4a the lining carrier plate 4 a respective brake pad 3 . 3. ' above the friction lining 5 in contact.

In the 6 to 10 are schematic perspective views of further embodiments of a disc brake according to the invention 10 with a reset device 8th Shown below are pad reset units 81 . 81 ' the second functional group of the return device 8th to be discribed.

6 and 7 show a pad reset unit 81 the application-side brake pad 3 in the form of energy storage elements 24 , in which 6 a plan view of the bottom plate 110 shows, and 7 a vertical section in the region of a force storage element 24 represents.

The energy storage elements 24 are designed here as tension springs and exert a tensile force on the application-side brake pad 3 out.

The energy storage elements 24 are each in an outer bore 11c in the application section 11 the caliper 1 taken and each with an end section 24b via a threaded pin 24c in the hole 11c are fixed. The holes 11c are threaded for this purpose. The other end sections 24a the energy storage elements 24 each stand out of the holes 11c through through holes 110a the bottom plate 110 and are in the side on the pressure side 4b the lining carrier plate 4 arranged holding eyes 4d engaged. In the embodiment shown are the holes 11c existing mounting holes with thread for fasteners 110b the bottom plate 110 ,

The force introduction points of the force storage elements 24 at the grommets 4d the lining carrier plate 4 the application-side brake pad 3 are thus in the vicinity of a mean friction radius or in the region or below the center of gravity of the application-side brake pad 3 and therefore cause no additional tilting moment or reduce by a spreader 80 possible generated tilting moment of the application-side brake pad 3 ,

8th and 9 show a variant of the Belagückstelleinheit 81 the application-side brake pad 3 in the form of energy storage elements 24 according to the execution 6 and 7 , in which 8th a plan view of the bottom plate 110 shows, and 7 a sectional view in the region of a force storage element 24 represents.

The energy storage elements 24 are also designed here as tension springs and exert a tensile force on the application-side brake pad 3 out.

In this example is a one-stamped disc brake 10 shown.

The energy storage elements 24 here are each in a cavity 11d in the application section 11 the caliper 1 by means of a spreading spring 24d added. The spreading springs 24d run in a horizontal direction between the bottom plate 110 and the application section 11 in the front area of the recesses 11d , The end portions 24b of the force storage elements 24 are each in the spreading spring 24d established.

The other end sections 24a the energy storage elements 24 each stand out through openings 111 the bottom plate 110 stand out and stand with in the side on the pressure side 4b the lining carrier plate 4 arranged holding eyes 4d engaged.

The force introduction points of the force storage elements 24 are like in the example below 6 and 7 described arranged.

Another variant of the variant 8th and 9 shows 10 in a sectional view.

In this further variant, the difference to the variant 8th and 9 in that the zuspannseitigen end sections 24b the energy storage elements 24 with eyelets 111d at the bottom plate 110 engage.

11 and 12 show schematic perspective views of a brake carrier 6 with brake pads 3 . 3. ' and a functional group of the reset device 8th , The function group is the second function group with covering reset units 81 ,

The shown side of the brake carrier 6 leading to the clamping section 11 the caliper 1 in 11 points, is used as a mounting side 6b designated. The brake carrier 6 is with its attachment side 6b attached to a stationary part of an associated vehicle. The attachment side 6b is also with two bearing shots 6c for not shown guide rails for the axial mounting of the caliper 1 Mistake.

The brake pads 3 . 3. ' are shown in their lining shafts, with the inlet side Bremsträgerhörner 6a . 6'a are not shown for clarity.

The application-side brake pad 3 stands with sections of the underside of its lining carrier plate 4 on support sections 6d of the lining shaft floor of the brake carrier 6 in the area of the ends of the bridge connector 6e of the brake carrier 6 , Here is the brake pad 3 over guide sections 4e its lining carrier plate 4 in guide grooves 25 the support sections 6d of the brake carrier 6 axially, ie in the direction of the brake disc axis of rotation 2a slidably guided. The guide sections 4e stand with bearing surfaces 4f on their undersides with the guide grooves 25 in contact.

In this embodiment, the guide grooves 25 each with a radial slope 25a Mistake. As a result, a return movement of the application-side brake pad 3 relieved, as the radial slopes 25a from the brake disc 2 towards the attachment side 6b of the brake carrier 6 are inclined downwards. Thus comes a gravity component of the brake pad 3 in addition to the restoring force added.

The difference in execution 12 for example 11 lies in the fact that the guide grooves 25 in the tangential direction of the brake disc 2 are widened and each a receptacle for a force storage element 24 form.

The energy storage elements 24 are each with an end section 24a with the associated guide section 4e the lining carrier plate 4 the application-side brake pad 3 connected, the other end sections 24b each with an edge of the respective support section 6d engage.

The energy storage elements 24 are designed as tension springs and outside (here below) the center of gravity of the application-side brake pad 3 at outer force introduction points at the lower edge region of the lining carrier plate 4 hinged, with a tilting of the brake pad 3 is prevented during reset.

13 FIG. 12 is a schematic perspective view of another pad return unit. FIG 81 the return device 8th with a split caliper 1 , 1 '.

The split caliper 1 '1' comprises the application section 11 as the first part, the saddle back 12 with the tension struts 13 the other part as a caliper 1' form. The application section 11 is here on both sides in the area of the tension struts 13 with passage openings 27 for fasteners 26 , eg screws, provided. The fasteners 26 act when assembling the split caliper 1 . 1' with mounting holes 27a (eg with thread) in the tension struts 13 together.

A power storage element 24 the pad reset unit 81 is with an end section 24b on a retaining eye already described above 4d on the pressure side 4b the lining carrier plate 4 the application-side brake pad 3 connected. The other end section 24b the energy storage element 24 is on a holder 28 hinged. The holder 28 has a mounting portion 28a and an associated holding section 28b on. The holding section 28b is here with the attachment section 28a connected via a bend. The attachment section 28a is with a through hole 28c provided and is in the connection of tension strut 13 and clamping section 11 attached. In this case, the upper fastening element extends 27 through the passage opening 28c of the owner 28 , This is also the case on the other side, not shown here, so that two force storage elements 24 are provided.

The energy storage elements 24 are designed as tension springs and outside (here below) the center of gravity of the application-side brake pad 3 at external force introduction points (here the grommets 4d ) of the lining carrier plate 4 at the pressure side 4b hinged, with a tilting of the brake pad 3 is prevented during reset

The 14 to 19 show schematic views of further embodiments of Belagückstelleinheiten 81 the return device 8th ,

14 shows a sectional view of a printing stamp 22 with a pressure piece 23 and the application-side brake pad 3 the disc brake 10 represents. 15 shows the application-side brake pad 3 in a perspective view of the printed page 4b the lining carrier plate 4 ,

A printing stamp 22 the unspecified application device is with a pressure piece 23 firmly connected at its brake-disk-side end and is above the pressure piece 23 with a printing section 29 the lining carrier plate 4 the application-side brake pad 3 in contact.

The printing section 29 is on the pressure side 4b the lining carrier plate 4 molded and stands by this in the direction of the Zuspannabschnitt 11 out.

In this embodiment, the pad reset unit is 81 by a positive connection between the plunger 22 and the application-side brake pad 3 educated. For this purpose, the pressure piece 23 a lead 23a with a head 23b in T-shape. This lead 23a engages with a T-groove 29a of the projection 29 the lining carrier plate 4 the application-side brake pad 3 , Since this example is a two-plate disc brake 10 are on the backing plate 4 two printing sections 29 intended. The T-slots 29a extend parallel to each other and parallel to a transverse axis of the application-side brake pad 3 ,

Instead of the positive connection of the T-shaped projection 23a with the T-slot 29a is also an adhesive bond between the pressure piece 23 and the printing section 29 possible. Also conceivable is a combination of adhesive film and T-slot connection.

When releasing the disc brake 10 after a braking process, the plunger 23 by a spring not described in detail within the Zuspannabschnitts 11 again in the Zuspannabschnitt 11 moved back. This is the application-side brake pad 3 over the positive connection projection 23a / T-slot 29a or the adhesive bond taken and also returned.

In 15 is also shown that the pad retaining spring 7 on the top 4i the lining carrier plate 4 in the middle by a clamp element 37 is held, which on the lining carrier plate 4 is attached. This attachment is designed such that a tab of the clip element 7 through a continuous opening 4h in the middle upper region of the lining carrier plate 4 extends through and on the other side with the clamping element 37 is firmly connected. In this way, a non-detachable, but movable connection of the pad retaining spring 7 with the lining carrier plate 4 educated.

In 16 is the printing stamp 22 a one-stamped disc brake 10 with a pressure plate 30 and a brake application side brake pad 3 shown.

The printing plate 30 has approximately the dimensions of the lining carrier plate 4 on and is between the print side 4b the lining carrier plate 4 and the printing stamp 22 , at the brake disk side end of the thus firmly connected pressure piece 23 is attached, arranged. In one for Zuspannabschnitt 11 pointing application side 30c the printing plate 30 is a central, here circular recess 30a with a continuous slot 30b formed. The slot 30b runs horizontally from the center of the recess 30a to the right to the side.

On the print side 4b the lining carrier plate 4 are two horizontal protrusions 31 formed, which form a horizontal T-slot 32.

At the side of the pressure piece 23 leading to the brake disc 2 points is a bolt-shaped projection 23a with a head 23b mounted eccentrically in T-shape.

When assembled, the pressure plate is located 30 with its pressure side 30d with unspecified pressure sections on the pressure side 4b the lining carrier plate 4 the application-side brake pad 3 on, with the pressure piece 23 of the printing stamp 22 in the recess 30a the printing plate 30 is included. In this case, the T-shaped projection extends 23a through the slot 30b and stands with his head 23b with the T-groove 32 of the projection 31 the lining carrier plate 4 in a positive engagement.

The function of this pad reset unit 81 is as related to above 15 described. Again, an adhesive bond may be possible instead of or in addition to the positive connection.

17 shows the underside of a disc brake 10 with the pressure plate 30 to 16 , In 18 is a sectional view of the disc brake 10 17 shown.

In this version is the pressure plate 30 via two parallel guide rods 34 in the axial direction parallel to the brake disc axis of rotation 2a at the bottom of the Zuspannabschnitts 11 the caliper 1 guided. The guide rods 34 are left and right on the outsides of the printing plate 30 in the area of a bottom 30e the printing plate 30 in a leadership lead 35 with their brake disc side rod ends 34a attached and fixed axially in one direction. Furthermore, the guide rods extend 34 each by a guide section 14a . 14b at the bottom of the Zuspannabschnitts 11 parallel and symmetrical to the brake disc axis of rotation 2a through to about the middle of Zuspannabschnitts 11 , They protrude freely from the guide sections 14a . 14b in addition, in which the guide rods 34 are mounted axially displaceable.

Between the other rod ends 34b the free sections of the guide rods 34 and from the brake disc 2 remote plant sections 14c the guide sections 14a . 14b is each a force storage element 33 in the form of a compression spring on the respective free portion of the guide rods 34 postponed under pretension.

Due to the prestressed energy storage elements 33 practice these on the other rod ends 34b below the tightening section 11 in each case a compressive force in the axial direction parallel to the brake disc axis of rotation 2a out. This pressure force pushes the guide rods 34 in the axial direction of the brake disc 2 away, with the guide rods 34 with their brake disc side rod ends 34a each a tensile force on the printing plate 30 in the direction of the Zuspannabschnitt 11 exercise.

During a braking process, the energy storage elements 33 on the guide rods 34 further biased, since the pressure plate 30 over the axially fixed in one direction guide rods 34 this to the brake disc 2 moving towards. When releasing the brake, the pressure plate 30 in turn via the unilateral axial connection of the brake disk side rod ends 34a the guide rods 34 taken along and also put back.

To reset the application-side brake pad 3 can the positive connection or adhesive bond between pressure plate 30 and lining carrier plate 4 the application-side brake pad 3 to 16 be provided. Thereby, the above-described provision of the printing plate 30 on the application-side brake pad 3 transferred, and this is also from the brake disc 2 moved away.

The points of attack of this pad reset unit 81 are at the bottom of the backing plate 4 the application-side brake pad 3 and thus below the center of gravity, creating a by a spreader 80 caused possible tilting moment of the brake pad 3 is prevented.

In the 19 to 21 Figure 11 are schematic views of pad reset units 81 ' the return device 8th the backside brake pad 3. ' shown.

19 shows a pad reset unit 81 ' the backside brake pad 3. ' , wherein the lining carrier plate 4 has upwardly extended side portions acting as guide tabs 35 for holding one guide rod each 34 serve. The guide rods 34 are in the leadership tabs 35 with brake disc side rod ends 34a axially fixed in one direction and extend over the saddle back 12 the caliper 1 in the axial direction parallel to the brake disc axis of rotation 2a , The guide projections 35 the lining carrier plate 4 are opposite to saddleback 12 further guidance projections 36 of the saddleback 12 arranged. The guide rods 34 are in the leadership tabs 36 of the saddleback 12 each slidably mounted and continue on the saddle back 12 from the brake disc 2 groundbreaking.

Between the other rod ends 34b the free sections of the guide rods 34 and the guide tabs 36 is each a force storage element 33 in the form of a compression spring on the respective free portion of the guide rods 34 postponed under pretension.

The guide rods 34 form an axial guide of the back-side brake pad 3. ' ,

When releasing the brake after a braking operation, the saddle back moves 12 from the brake disc 2 away and the back-side brake pad 3. ' is about the unilateral axial connection of the brake disc side rod ends 34a the guide rods 34 taken and put back.

In 20 is a pad reset unit 81 ' the backside brake pad 3. ' with a return element 38 shown.

The reset element 38 Here is a screw on a back-side end section 20b of the pad retaining bracket 20 at the saddle back 12 the caliper 1 mounted biased and exerts a compressive force on the back-side brake pad 3. ' such that this in a direction of the brake disc 2 pointing away against the saddleback 12 is pressed.

The reset element 38 here includes a spring arm 38a with a printing surface 38e , Connecting sections 38b and 38c , and a fixing section 38d ,

The spring arm 38a of the return element 38 is on the lining side 4a the lining carrier plate 4 the backside brake pad 3. ' in a slot of the friction lining 5 arranged so that the spring arm 38a with its printing surface 38e on the lining side 4a the lining carrier plate 4 rests. The spring arm 38a extends in the course of the transverse axis of the lining carrier plate 4 down to about the area of the center of gravity or in the vicinity of the middle friction radius.

An upper end of the spring arm 38a is bent by about 90 ° and goes into the first connecting section 38b over, extending through the opening 4h below the clamp element 37 extends and then with the approximately vertically upwardly facing second connecting portion 38c connected is. The second connection section 38c runs over a plant section 12a on the inside of the saddleback 12 and is bent at its upper end, wherein it in the axially extending attachment portion 38d passes.

The attachment section 38d lies under a bottom 20c the back-side end portion 20b of the pad retaining bracket 20 and on a flat surface 12b of the saddleback 12 , The end section 20b of the pad retaining bracket 20 and the mounting portion disposed thereunder 38d of Restoring element 38 are by a fastener 15b , eg a screw, on the back of the saddle 12 attached. In this case, the fastener extends 15b through a passage opening through the attachment portion 38d of the return element 38 therethrough.

When releasing the brake after a braking operation, the saddle back moves 12 from the brake disc 2 away and the back-side brake pad 3. ' is over the spring arm 38a of the return element 38 taken and put back.

In the execution after 21 showing a perspective view of the disc brake 10 from above, is the pad reset unit 81 ' the backside brake pad 3 through coupling sections 39 of the saddleback 12 the caliper 1 educated.

The coupling sections 39 are located in corner areas of the opening 9 between a respective tension strut 13 and the saddleback 12 each at an upper corner of the lining carrier plate 4 the backside brake pad 3. ' ,

The coupling sections 39 each have a vertical groove 40 on, the brake disk side by a vertical edge 40a and back by section of the saddle back 12 is limited. The lining carrier plate 4 the backside brake pad 3. ' stands with upper corner portions of their respective side sections 4g each with a groove 40 in contact, these corner areas of the side sections 4g between the edge 40a and the saddleback 12 are arranged.

When releasing the brake after a braking operation, the saddle back moves 12 from the brake disc 2 away and the back-side brake pad 3. ' gets through the edges 40a the grooves 40 taken and put back.

In the 6 to 19 are deck reset units 81 for the application-side brake pad 3 been described. Due to the operation of the disc brake 10 with the caliper 1 In Schwimmsattelausführung it is necessary that the energy storage elements 24 the slip reset units 81 the application-side brake pad 3 the complete wear path of the application-side brake pad 3 while the spring forces of the pad resetting units 81 ' of the 19 to 21 only have to be designed for a fixed bias.

It is possible that the disc brakes 10 only with the spreader 80 or only with one or two reset units 81 . 81 ' can be provided. But it is also possible that the disc brake 10 with the spreader 80 and only with one or two reset units 81 . 81 ' can be equipped.

The invention is not limited by the embodiments described above. It is modifiable within the scope of the appended claims.

LIST OF REFERENCE NUMBERS

1,1 '

caliper

2

brake disc

2a

Brake disk rotational axis

3, 3 '

brake lining

4

Backing plate

4a

covering page

4b

pressure side

4c

head Start

4d

retaining eye

4e

guide section

4f

bearing surface

4g

side portion

4h

opening

4i

top

5

friction lining

6

brake carrier

6a, 6'a

Brake carrier horn

6b

mounting side

6c

bearing seat

6d, 6'd

bearing section

6e, 6'e

bridge connector

7

Pad retaining spring

7a

head Start

8th

Reset device

9

opening

10

disc brake

11

Zuspannabschnitt

11a

bearing section

11b

guide opening

11c

drilling

11d

cavity

12

Saddleback

12a

contact section

12b

bearing surface

13

tension strut

14

holding section

14a, 14b

guide section

14c

contact section

15

holding section

15a

locking

15b

fastener

16

Pad Retainer

16a, 16b

bail arm

16c

connection

17

Power storage element

17a

guide element

18, 18 '

Through opening

19

holding section

20

Pad Retainer

20a, 20b

end

20c

bottom

21

spring element

21a

Central section

21b

holding section

21c, 21'c

spring arm

21d, 21'd

print section

21e, 21'e

print area

22

plunger

23

Pressure piece

23a

head Start

23b

head

24

Power storage element

24a, 24b

end

24c

Set screw

24d

splay

25

guide

25a

slope

26

fastener

27

Through opening

27a

fastening opening

28

holder

28a

attachment section

28b

holding section

28c

Through opening

29

print section

29a

T-slot

30

printing plate

30a

recess

30b

slot

30c

application side

30d

pressure side

30e

bottom

31

head Start

32

T-slot

33

Power storage element

34

guide rod

34a, 34b

rod end

35, 36

guide projection

37

clip element

38

Return element

38a

spring arm

38b, 38c

connecting portion

38d

attachment section

38e

print area

39

coupling section

40

groove

40a

edge

80

spreading

81, 81 '

Covering resetting unit

110

floor panel

110a

Through opening

110b

fastener

110c

retaining eye

111

Through opening

AS

outlet side

IT

inlet side

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102007001213 [0005]
• DE 102012006111 A1 [0007]
• DE 4301621 A1 [0009]
• US 2014/0339026 A1 [0010]

Claims (28)

Disc brake (10) for a commercial vehicle, having a brake caliper (2), designed as a sliding caliper (1), which is fixed to a stationary brake carrier (6) and has a central opening (9) over the brake disc (2), two brake pads (3, 3 ') arranged in the brake caliper (1) and movable in opposite directions, each having a lining carrier plate (4) and a friction lining (5) fastened thereon, one of which is an application-side or application-side brake lining (3) at least one brake stamp against the brake disc (2) can be pressed, and at least one restoring device (8), with which the brake pads (3, 3 ') are traceable after a brake-induced displacement and release of the brake, characterized in that the restoring device (8) a spreading device (80) arranged in the opening (9) and engaging at the upper edges of the brake linings (3, 3 '), with at least one force store erelement (17, 21). Disc brake (10) after Claim 1 , characterized in that the at least one energy storage element (17, 21) in the center of the opening (9) on a pad retaining bracket (16) is mounted. Disc brake (10) after Claim 2 , characterized in that the pad retaining bracket (16) U-shaped with two bracket arms (16a, 16b) is formed of a wire, wherein the at least one power storage element (17, 21) on the bail arms (16a, 16b) is mounted. Disc brake (10) after Claim 3 , characterized in that on each bail arm (16a, 16b) at least one force storage element (17) is pushed in the embodiment of a compression spring. Disc brake (10) after Claim 4 , characterized in that the hanger arms (16a, 16b) of the pad retaining clip (16) extend through passage openings (18, 18 ') of the pad carrier plates (4) of the brake pads (3, 3'), wherein the at least one on each bail arm (16a , 16b) deferred force storage element (17) in each case on the lining carrier plates (4) is supported. Disc brake (10) after Claim 4 characterized in that the bail arms (16a, 16b) of the pad retaining yoke (16) extend through retaining plates (19) connected to the pad backing plates (4) of the brake pads (3, 3 '), the at least one on each Bail arm (16a, 16b) deferred force storage element (17) is supported in each case on the holding plates (19). Disc brake (10) after Claim 3 , characterized in that the at least one power storage element (21) with holding portions (21b) on the bail arms (16a, 16b) of the pad retaining bracket (16) between the bail arms (16a, 16b) between the brake pads (3, 3 ') attached, it is in each case in contact with at least one spring arm (21c, 21'c) with the lining carrier plates (4) of the brake linings (3, 3 '). Disc brake (10) after Claim 2 , characterized in that in each case at least one energy storage element (17) between corner regions of the lining carrier plates (4) of the brake pads (3, 3 ') is mounted. Disc brake (10) after Claim 8 , characterized in that the respective at least one force storage element (17) is pushed with its end portions on guide elements (17a) which are fastened to lining sides (4a) of the lining carrier plates (4) of the brake linings (3, 3 '). Disc brake (10) according to one or more of the preceding claims, characterized in that the at least one energy storage element (17) is designed as a compression spring and is installed under bias. Disc brake (10) according to one or more of the preceding claims, characterized in that the restoring device (8) has at least one lining restoring unit (81, 81 '). Disc brake (10) after Claim 11 , characterized in that the lining restoring unit (81) has at least one force storage element (24) which is connected to the caliper (1) directly or indirectly and to the application-side brake pad (3). Disc brake (10) after Claim 12 , characterized in that the at least one force storage element (24) as a tension spring in a bore (11c) in the application section (11) of the caliper (1) and with one end portion (24b) in the bore (11c) is fixed, the other End portion (24a) with a holding lug (4d) on a pressure side (4b) of the lining carrier plate (4) of the application-side brake pad (3) is engaged. Disc brake (10) after Claim 13 , characterized in that the bore (11c), in which the at least one force storage element (24) is fixed, a threaded bore of a fastening element (110b) of a bottom plate (110) of the Zuspannabschnitts (11). Disc brake (10) after Claim 12 , characterized in that the at least a power storage element (24) as a tension spring in a cavity (11d) in the application section (11) of the caliper (1) and with one end portion (24b) by means of a spreading spring (24d) behind a bottom plate (110) is fixed, wherein the other end portion (24a) with a holding lug (4d) on a pressure side (4b) of the lining carrier plate (4) of the application-side brake pad (3) is engaged. Disc brake (10) after Claim 12 , characterized in that the at least one force storage element (24) is attached as a tension spring to a holding lug (110c) of a bottom plate (110) of the application section (11), wherein the other end portion (24a) with a holding lug (4d) on a pressure side ( 4b) of the lining carrier plate (4) of the application-side brake pad (3) is engaged. Disc brake (10) after Claim 12 , further comprising a split caliper (1, 1 '), characterized in that the at least one force storage element (24) is fastened as a tension spring with an end portion (24b) on a holder (28) which between the Zuspannabschnitt (11) of the first part the brake caliper (1) and the tension strut (13) of the second part of the caliper (1 ') is fixed, and wherein the other end portion (24a) with a retaining eye (4d) on a pressure side (4b) of the lining carrier plate (4) of the application side Brake pad (3) is engaged. Disc brake (10) after Claim 11 , characterized in that the lining restoring unit (81) has radial bevels (25a) which are formed in guide grooves (25) of bearing sections (6d) of the brake carrier (6), wherein the guide grooves (25) are provided with guide sections (4e) of the lining carrier plate (4e). 4) of the application-side brake pad (3) are in cooperation, and wherein the bevels (25a) in the direction of the brake disc (2) on the application section (11) of the caliper (1) are inclined. Disc brake (10) after Claim 11 , characterized in that the Belagückstelleinheit (81) has at least one power storage element (24) as a tension spring, which is connected to the brake carrier (6) directly or indirectly and with the application-side brake pad (3). Disc brake (10) after Claim 19 , characterized in that guide grooves (25) of support portions (6d) of the brake carrier (6), which in each case with guide portions (4e) of the lining carrier plate (4) of the application side brake pad (3) are in cooperation, respectively, a receptacle for the at least one force storage element (24), wherein the at least one energy storage elements (24) each having an end portion (24a) with the associated guide portion (4e) of the lining carrier plate (4) of the application side brake pad (3) is connected, wherein the other end portions (24b) each with an edge of the respective support portion (6d) are engaged. Disc brake (10) after Claim 11 , characterized in that the lining restoring unit (81) by a positive connection and / or an adhesive bond between a plunger (22) and the application-side brake pad (3) is formed. Disc brake (10) after Claim 21 , characterized in that the positive connection is a T-slot connection, wherein a pressure piece (23) of the plunger (22) has a projection (23a) with a head (23b) in T-shape, said projection (23a) in Engaging with a T-slot (29a) of a projection (29) of the lining carrier plate (4) of the application-side brake pad (3) is. Disc brake (10) after Claim 11 , characterized in that the pad restoring unit (81) has two mutually parallel guide rods (34) which are guided in the axial direction parallel to a brake disc axis of rotation (2a) on the underside of the Zuspannabschnitts (11) of the caliper (1) slidably, wherein the guide rods (34) are each provided with a force storage element (33) in the form of a compression spring and are connected to the pressure plate (30), wherein the pressure plate (30) is coupled to the application-side brake pad (3). Disc brake (10) after Claim 11 , characterized in that the lining restoring unit (81 ') guide rods (34), which in each case slidably mounted in guide projections (36) of the saddle back (12) and with the back side brake pad (3'), wherein the guide rods (34) are each provided at least one force storage element (33), which is under bias and a tensile force on the back-side brake pad (3 ') by the guide rods (34) exerts. Disc brake (10) after Claim 11 , characterized in that the lining restoring unit (81 ') has a restoring element (38), which is secured to the seat back (12) of the caliper (1) biased and with a spring arm (38a) with a lining side (4a) of the lining carrier plate (4 ) of the back-side brake pad (3 ') is in contact. Disc brake (10) after Claim 11 , characterized in that the lining restoring unit (81 ') of the back-side brake pad (3) by coupling portions (39) of the saddle back (12) of the caliper (1) is formed, wherein the Coupling sections (39) each have a vertical groove (40) with a brake disk side vertical edge (40a), wherein the lining carrier plate (4) of the back-side brake pad (3 ') with upper corner regions of their respective side sections (4g) each having a groove (40) is in contact with these corner portions of the side portions (4g) between the edge (40a) and the seat back (12) are arranged. Disc brake (10) after one of Claims 11 to 26 , characterized in that the at least one Belagückstelleinheit (81, 81 ') at least in a third point in the region of the central friction radius, the center of gravity, or centrally, ie centrally at the intersection of an imaginary transverse axis and longitudinal axis of the brake lining (3, 3'), symmetrically to the transverse axis at two contact areas on the right and left thereof on the longitudinal axis and / or in a lower edge region of the brake lining (3, 3 ') engages and reduced by the spreader (80) generated tilting moment. Brake lining set for a disc brake (10) according to any one of the preceding claims, characterized in that the brake lining set has a restoring device (8).

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