EP3344895A1

EP3344895A1 - Disc brake having a synchronization unit

Info

Publication number: EP3344895A1
Application number: EP16756976.3A
Authority: EP
Inventors: Michael Peschel; Alexander Asen; Christian STÖGER; Christian Brandl; Matthias Klingner; Abdelaziz Rguichi
Original assignee: Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Current assignee: Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Priority date: 2015-08-31
Filing date: 2016-08-12
Publication date: 2018-07-11
Also published as: WO2017036765A1; BR112018003453A2; DE102015114440B4; CN108350964A; US10626940B2; US20180187733A1; DE102015114440A1; RU2698264C1; CN108350964B

Abstract

A disc brake (1), preferably actuated by compressed air, in particular for a motor vehicle, comprises a brake calliper (4) which has a brake application section (40) with a brake application device, preferably with a rotary brake lever, at least one wear adjusting device for adjusting wear of brake linings, and a brake disc with a synchronization unit (10) which comprises an adjusting device (11), a drive device (12) and a synchronizing means (13), wherein the adjusting device (11) and the drive unit (12) are preferably inserted in each case into a threaded plunger of a spindle unit and are attached by way of a mounting arrangement on a bearing wall (40a) of the brake application section (40) of the brake calliper (4). The synchronization unit (10) is installed with the adjusting device (11) and the drive device (12) as a preassembled group into the brake application section (40) of the brake calliper (4), wherein the synchronizing means (13) is arranged in the region of the mounting arrangements on the bearing wall (40a) within the brake application section (40) of the brake calliper (4). A method for installing a synchronization unit (10) is specified.

Description

Disc brake with synchronization unit

The invention relates to a disc brake, in particular for a motor vehicle, with a synchronization unit according to the preamble of claim 1. The invention also relates to methods for installing a wear adjusting device in such disc brakes. Such disc brakes are often used in vehicles and certain technical devices. This is the case especially in the passenger car and commercial vehicle sector. In the typical design of a disc brake, this consists of a caliper together with internal mechanics, usually two brake pads and the brake disc. On the internal mechanism, which is also referred to as a clamping device, the cylinder forces are introduced via a preferably pneumatically actuated cylinder, by an eccentric mechanism, e.g. a brake lever, reinforced and transmitted as clamping force via threaded spindles on the brake pads and brake disc, which is compensated by the threaded spindles wear of the brake disc and brake pads.

The application forces act on both brake pads on the brake disc, which undergoes a delay of the rotational movement in dependence on the amount of the application force. This delay is largely determined by the coefficient of friction between the brake disc and brake pad. Since the pads are structurally designed as wearing parts and the coefficients of friction are dependent on the strength, they are generally softer than the brake disc, i. the pads learn about their service life, a change in the lining thickness, they wear out. From this covering strength change, there is the necessity that a wear adjustment compensates for the change and thus sets a constant clearance. A constant air clearance is required to keep the response times of the brake small, to ensure the freedom of the brake disc and to provide a stroke reserve for limit load cases.

An example of a wear adjusting device is described in the document DE 10 2004 037 771 A1. In this case, a drive rotational movement is forwarded, for example, from a torque limiting device via a continuously acting clutch to an adjusting spindle of a plunger. The air play is adjusted continuously. In the case of a disc brake with more than one threaded spindle, the drive rotary movement for wear adjustment of a threaded spindle on the other and a threaded spindle (s) is synchronously transmitted by means of a synchronizing means. Such a synchronizer cooperates with corresponding components of the threaded spindles, eg chain and sprockets. There are different solutions for the positioning of the synchronizer, for example on a power transmitting Traverse, behind the brake lever or outside of the caliper.

DE 40 34 165 A1 illustrates an example of a disc brake with a synchronizer.

For the wear adjustment, the positioning of an adjusting device in the brake caliper is necessary. In this case, the acting within the adjusting stop of the transmission mechanism of the adjusting device must remain effective. This has the consequence that the adjusting device is positioned in its angular position in the caliper adapted to the respective components, i. is set.

For this purpose, EP 2 307 753 B1 illustrates an example in which, after a positionally correct positioning of the adjusting device, a ball is pressed into a pocket located laterally on the adjusting device receptacle in the brake caliper. The pocket is positioned so that the ball covers a sheet metal part (head plate) of the adjusting device and deforms this sheet metal part in the press-in process. As a result, the adjusting device is set and fixed in its angular position in the brake caliper. Due to the system, the adjusting device can thus be fixed only in its angular position, but not in its axial position. There are small overlaps (ball diameter about 5 mm, including 1, 5 mm overlap with the adjustment) technically represented. It is considered disadvantageous that this fixation can loosen under single unfavorable loads (for example strong vibrations in defined directions). There is a constant need for simplification and increase the life of disc brakes while reducing costs or at least without additional cost increase.

Therefore, the object of the present invention is to provide an improved

To provide disc brake.

The object is achieved by a disc brake with the features of claim 1. The object is also achieved by a method with the Merkmaien of claim 27.

There is provided a disc brake having a synchronization unit as a preassembled group, which is installed from a lining shaft side in the caliper. In this case, the synchronizing means is arranged in the region of the bearing arrangements on the bearing wall within the application section of the brake caliper. This is advantageous because no additional mounting of the synchronizer and associated functional elements from the outside is necessary.

A disc brake according to the invention, preferably pneumatically actuated, in particular for a motor vehicle, comprises a brake caliper which has an application section with a brake application device, preferably with a brake rotation lever, at least one wear adjustment device for adjusting a wear of brake linings and a brake disc with a synchronization unit, which comprises an adjusting device, a driving device and a synchronizing means, wherein the adjusting device and the driving unit are preferably each inserted into a threaded temple of a spindle unit and mounted with a bearing arrangement on a bearing wall of the application section of the caliper. The synchronization unit is installed with the adjusting device and the entrainment device as a preassembled group in the application section of the caliper, wherein the synchronizer is arranged medium in the storage arrangements on the bearing wall within the application of the brake caliper.

In addition, there is the advantage that the synchronizing means is arranged outside the clamping mechanism, i. neither on the crossbeam nor between this and the brake rotary lever, but on the inside of the bearing wall. This makes it possible for the brake rotary lever and the spindle units to be installed and removed separately from the synchronization unit. This saves time during maintenance and repair work.

An inventive method for installing a synchronization unit with an adjusting device and a driving device in a brake caliper of a disc brake described above has the following method steps.

(S1) mounting the synchronization unit with the adjusting device and the driver device, wherein a synchronizing means with synchronous wheels at upper ends of the adjusting device and the driver device is arranged; (S2) inserting the thus-mounted synchronization unit in an inner space of a Zuspannabschnitts of the caliper by a brake-disk-side Bodenblechflansch; and (S3) mounting the adjusting device and the carrier device of the synchronization unit thus introduced in a bearing wall of the application section of the brake caliper.

In one embodiment, the bearing assembly of the adjuster comprises a bore in the bearing wall of the brake caliper attachment portion and a collar on the bearing wall within the brake caliper application portion, a support disk on the adjuster, and a bearing block having a retaining portion. For a simple definition of the adjusting device in the storage wall is possible.

In a further embodiment, a bearing arrangement of the entrainment device has a bore in the bearing wall of the application section of the caliper and a collar on the bearing wall of Zuspannabschnitts the caliper, a support disk on the entrainment device and the bearing block with a further holding portion. Thus, a simple definition of the driver device in the storage wall is made possible. In yet another embodiment, it is provided that each support disk has alternately two diametrically opposite circular section edges and two diametrically opposite flats circumferentially at its edge, the flattenings of a respective support disk extending parallel to each other. This has the advantage that the circular section edges and the flats by simply rotating the support discs interchange their position, whereby it is possible to push in a position of the support discs in a first position with their flats under the collar, then in a second position to rotate, whereby then the circular section edges cooperate with the collar so that they form an axial fixing.

For this purpose, it is advantageous if each of the holes is surrounded on the inside of the bearing wall by a respective collar at an angle of about 240 °, each collar being provided with a respective collar edge and a respective collar opening. Thus, the collar openings advantageously allow the Abstütz- discs can be pushed in the first position through the collar openings under the collar, where the support disks are then rotated to the second position and each form an axial fixing of the adjusting device and the driving device with the collar. In a further embodiment, the collar openings are opposite. This results in the advantage that the adjusting device and the entrainment device are brought as synchronization unit during insertion into the application section of the caliper close together so that their support discs then see in the middle between the collar openings can be placed first, from where the adjuster and the entrainment then can be pushed under the collar to the left and right. This results in a simple assembly.

In yet another embodiment, each collar edge of each collar has an inner radius which is smaller than an inner radius of the respectively associated bore. This results in a projection of the collar edges for easy cooperation with the support disks.

If each collar is provided with diametrically arranged holding regions with respect to a respective center of bore, the support disks can each be fixed by a simple 90 ° rotation. Of course, other turns are possible.

In yet another embodiment, it is provided that in a built-in state of the synchronization unit, the flattening of the support disks of the

Adjustment device and the entrainment device are all arranged parallel to each other, wherein they extend at right angles to an imaginary connecting line of Bohrungsmittelpunkten the holes. This simplifies assembly. A further embodiment provides that in the installed state of the synchronization unit, a bearing block between the adjuster and the entrainment device is arranged, wherein the bearing block rests with a longitudinal side on the inside of the bearing wall, wherein in each case a lateral holding portion on a narrow side of the bearing block, each having a Flattening of each support disk is positively in contact and forms a rotation of the support disks. Thus, by the bearing block by simply inserting the rotation can be made possible.

In yet another embodiment, the bearing block with its longitudinal sides forms guide sections for the synchronizer, eg a chain. This allows the bearing block advantageous several functions. In addition, the bearing block in a further embodiment advantageously forms an abutment for the brake rotary lever. An additional anti-rotation can take place in that the bearing arrangement of the adjusting device and / or the bearing arrangement of the driving device each have a fastening element between the respective support disk and the clamping section of the caliper. The fastening element can be, for example, a ball which is pressed into recesses provided for the associated components support disk and brake caliper and forms an additional positive connection of these components.

Thus, a disc brake is provided with a synchronization unit which can be installed in the bearing seats of the adjusting device and the entrainment device through the Bodenblechflansch the caliper in the Zuspannabschnitt. The synchronization unit can be used as a complete assembled unit of adjusting device and entrainment device together with the synchronization means, e.g. the chain, are introduced together through the base plate flange. This results in the following further advantages.

Simple and inexpensive synchronization

Easy installation

Modular system for different disc brakes

- The synchronization is fully integrated in the Zuspannabschnitt of the caliper, which is a casting.

A separate lid unit is not required.

In an alternative embodiment, it is provided that the bearing arrangement of the adjusting device has a bore in a bearing wall of Zuspannabschnitts the caliper, a bearing plate and a head plate with at least one cylinder segment and at least one surface segment on the adjusting device. This results in an advantageously simple installation and Festlegungsmöglichkeit the adjuster in the storage wall. This installation method can also be used for disc brakes, which have only one spindle unit. However, there are also conceivable cases in which the adjusting device, e.g. is arranged between the spindle units.

In a further embodiment, the head plate has a conical fastening section pointing toward the interior of the tightening section, which is fixedly connected to the bearing disk of the adjusting device, wherein the fastening section is connected at its outer edge to a disk section on which the at least one cylinder segment and the at least one area segment are appropriate. This is advantageous because in this way a common bearing plate with only a smaller extension can be used. This saves components and installation space.

A still further embodiment provides that the at least one cylinder segment extends axially into the bore and is in a form-fitting contact with the bore at least partially, wherein the at least one surface segment extends radially outward and with a bearing surface on a counter surface the inside of the bearing wall of the Zuspannabschnitts around the bore rests around. In this way, the functions of axial fixing and centering are advantageously made possible in one component.

If the at least one cylinder segment has at least one fixing section which is positively connected to at least one fastening recess of the bore, an advantageously simple fixing of the adjusting device in the bearing wall is thus formed. The bearing wall in the region of the bore is thereby advantageously between the at least one surface segment and the at least one fixing section of the head plate. The positive connection can be done for example by caulking. For this purpose, it is advantageous that the at least one mounting recess of the bore is arranged at the end of the bore, which is located on the outside of the bearing wall, since in this way the positive connection is easy to produce from the outside by easy access. Thus, a disc brake is provided whose synchronization unit has an adjusting device with a head plate with surface segments and cylinder segments. The synchronization unit or even the adjusting device alone can be used in the designated hole in the bearing wall of the caliper and axially positioned with the flat surface segments of the head plate on the provided mating surfaces in the caliper, here on the inside of the bearing wall. Radial positioning takes place via the cylinder segments. After mounting the remaining components, the correct angular position of the adjusting device is adjusted by clocking the brake. Thereafter, the cylinder segments in fixing sections by a tool in for in the bore in the bearing wall of the caliper molded mounting recesses, such as side pockets pressed. By this forming process creates a positive connection, which ensures the fixation of the adjusting in angular and axial position. The following additional advantages result:

Simple and inexpensive installation

Dismantling is only "destructive" possible, no reuse of defective components.

- Secure fixing of the adjusting device due to the greatest possible positive locking No additional components required.

In another alternative embodiment, the bearing arrangement of the adjusting device has a bore in a bearing wall of the Zuspannabschnitts the

Caliper, a support sleeve, a washer and a fuse element on. This results in an advantageously simple installation and Festlegungsmöglichkeit the adjuster in the storage wall. This installation method can also be used for disc brakes, which have only one spindle unit. However, there are also conceivable cases in which the adjusting device, e.g. is arranged between the spindle units.

One embodiment provides that the support sleeve comprises a support body with a flange and a radial toothing. This results in a compact component. In a further embodiment, the radial toothing is formed as external and straight teeth, with their teeth extending parallel to a support sleeve axis over the outer surface of the support body. The toothing is easy to produce.

A still further embodiment provides that the washer is formed as a kind of annular disc with an annular body with a central opening, wherein the opening with an internal toothing, which is designed as Innengeradverzahnung and corresponds to the radial toothing of the support body of the support sleeve is provided , The washer can be produced inexpensively as a simple stamped part.

In yet another embodiment, the support sleeve is inserted in the installed state of the adjusting device in the bore, that the support body protrudes through the bore to the outside of the bearing wall, wherein an end face of the flange rests on a support surface on the inside of the bearing wall. This results in a simple assembly.

It is further provided that the washer is pushed from the outside onto the support body, wherein the internal toothing of the washer and the Radialver toothing of the support sleeve are engaged, wherein the washer abuts the outer side of the bearing wall and is axially fixed by the securing element on the support body.

Furthermore, the washer on at least one fixing portion, which are positively connected to at least one fixing portion of the outside of the bearing wall. It may also be two diametrically arranged fixing on the ring body. This allows easy and quick fixation on the caliper, e.g. by a simple forming process such as caulking. The following advantages result:

Simple and inexpensive installation

Secure fixation of the adjuster device due to the greatest possible form fit

- No additional parts needed

In a further embodiment of the method, support plates are rotated in such a way around a respective axis in step (S1) that flattenings of the support plates run parallel to an imaginary connecting line of bore centers, wherein the adjuster device and the entrainment device are initially arranged adjacent to one another Distance of a Nachstellerachse and a driver axis is smaller than a distance of the Bohrungsmittelpunkte. This allows an advantageously compact construction for installation. In a still further embodiment, in step (S2), insertion to a respective bore-facing circular section edges of the support disks are arranged laterally in front of a respective collar opening of the collar of the bores.

A further embodiment provides that in step (S3) mounting in a first sub-step the adjuster and the entrainment are pushed so far apart in the direction of the imaginary connecting line of the bore centers that the support plates with the pointing to the respective bore circular section edges ahead on the respective Bore between the respective collar and the bearing wall are pushed until these Kreisab- cut edges on a respective wall between the collar and the bearing wall come to rest. This results in a simple assembly process without tools. In a still further embodiment, in step (S3) mounting in a second sub-step, the support disks are each rotated by 90 ° about the adjuster axis and about the driver axis so that each circular section edge of the support disks between a respective holding region of the associated collar and the bearing wall of the Zuspannabschnitts the Brake caliper is arranged, wherein the synchronizing means is tensioned. In this way an axial fixation is made possible by a simple 90 ° rotation.

Furthermore, it is provided in one embodiment that in step (S3) mounting in a third sub-step, a bearing block is inserted through the Bodenblechflansch between the adjuster and the entrainment such that the bearing block rests with a longitudinal side on the bearing wall, the synchronizer further biases and with in each case one holding section, a flattening of the support disks to form an anti-rotation of the support plates positively contacted. This results in a simple and quick installation process.

For a further rotation then balls between the caliper and support plates can be pressed.

For an advantageously simple method is provided in which no or only simple tools are necessary, and which is fast and safe to carry out.

The invention will now be described by way of example with reference to the accompanying drawings. Hereby show:

Fig. 1 is a schematic partial sectional view of a conventional disc brake;

FIG. 2 shows a schematic view of an application side of a brake caliper of a first exemplary embodiment of a disc brake according to the invention with a synchronization unit; FIG.

Fig. 3 is a schematic perspective view of the synchronization unit of the first embodiment of Fig. 2;

4a-e schematic views of the synchronization unit of FIG.

3 in different installation steps; a schematic partial sectional view of the invention

Disc brake with the synchronization unit according to Fig. 3; enlarged schematic plan views of the synchronization unit of Figure 3 seen from the Zuspannseite; a schematic partial sectional view of the synchronization unit with mounted crosshead; a schematic view of the application side of a second embodiment of the disc brake according to the invention with a variant of a storage arrangement; a schematic plan view of a bore; enlarged sectional views along line X-X of Fig. 8; an enlarged sectional view taken along line Xl-Xl of Fig. 8; schematic views of a Zuspannseite a third embodiment of the disc brake according to the invention with a further variant of the synchronization unit; a schematic plan view of a caliper with a partial sectional view taken along line XIV of Fig. 12-13; an enlarged view of the area XV of FIG. 14; the enlarged view of Figure 15 in an assembly step. a schematic perspective view of a washer; and a schematic perspective view of a support sleeve.

1 shows a schematic partial sectional view of a conventional disc brake 1 of a plan view with a wear adjusting device 9 and a synchronization unit 10. The disk brake 1 has a brake disk 2 with a brake disk axis 2 a. The brake disk 2 is overlapped by a, designed here as a floating caliper caliper 4. On both sides of the brake disc 2 is in each case a brake pad 3, each with a brake pad carrier 3a is arranged. The disk brake 1 is designed here as a two-stamped brake with two spindle units 5 and 5 ', each with a threaded punch 6, 6'. The right side in FIG. 1 side of the disc brake 1 is called Zuspannseite A and the left side is referred to as lining shaft side B.

The application-side brake pad carrier 3a is in communication with the spindle units 5, 5 'with a respective spindle axis 5a, 5'a at the ends of the threaded pistons 6, 6' facing the brake disk 2 via thrust pieces 6a, 6'a. The other brake pad carrier 3a is also called the reaction-side brake pad carrier 3a and is fixed on the other side of the brake disk 2 in the brake caliper 4. The threaded pistons 6, 6 'are each arranged rotatable in threads in a traverse 17.

The spindle axes 5a, 5'a of the spindle units 5, 5 'are parallel to one another and parallel to the brake disk axis 2a, wherein the spindle axis 5a, 5'a are arranged in a plane which is perpendicular to the brake disk 2. The traverse 17 and thus the threaded pistons 6, 6 'are actuated by a clamping device, here a brake rotary lever 7 with a pivot axis perpendicular to a rotational axis of the brake disc axis 2 a. The brake rotary lever 7 is in cooperation with the cross member 17, wherein the cross member 17 is adjustable in the direction of the brake disk axis 2 a on the brake disk 2 through the brake rotary lever 7. A movement on the brake disc 2 is referred to as Zuspannbewegung, and a movement in the opposite direction is called release movement. A not further explained return spring is received in the middle of the cross member 17 in a corresponding recess on the lining side of the cross member 17 and is supported on the brake caliper 4 from. By means of the return spring, the cross member 17 is adjusted in the release movement in the position shown in Fig. 1 dissolved position of the disc brake 1.

The application device with the thread stamper 6, 6 ', the brake rotary lever 7 and the cross member 17 is arranged on the application side A of the disc brake 1 in an interior of a Zuspannabschnitts 40 of the caliper 4.

The interior of the application section 40 is surrounded by a circumferential wall and, on the side facing the brake disk 2, with a floor Sheet metal flange 41 formed with an opening. This opening is closed by a removable bottom plate 42. In the bottom plate 42 unspecified openings for the threaded pistons 6, 6 'are introduced and compared to the threaded dies 6, 6' and the pressure pieces 6a, 6'a with suitable seals, such as bellows, sealed.

On the side of the Zuspannabschnitts 40, which is opposite the Bodenblechflansch 41 with the opening, a bearing wall 40a closes the interior of the Zuspannabschnitts 40 outwardly toward the extended imaginary brake disk axis 2a. The bearing wall 40a is here covered by a cover 4a and serves to attach a (compressed air) brake cylinder, not shown.

The bearing wall 40 a lies in a plane parallel to the brake disk 2.

A distance between the brake pads 3 and the brake disc 2 in the released position is referred to as a clearance. As a result of lining and disc wear this clearance is larger. The increased clearance must be compensated so that the disc brake 1 can maintain its peak performance. For this purpose, a so-called wear adjusting device 9, which via a drive 8 of the Bremsdrehhebe! 7 is pressed.

The disc brake 1 may have different power drives. The brake rotary lever 7 is here shown e.g. pneumatically operated. For construction and function of a pneumatic disc brake 1 with a wear adjusting device 9, reference is made to the corresponding description of DE 197 29 024 C1.

The wear adjusting device 9 is designed for wear adjustment of a predetermined clearance, which is referred to as nominal clearance. The term "adjustment" is to be understood as meaning a reduction in the clearance of the clearance The predetermined clearance is determined by the geometry of the disc brake 1 and has a so-called constructive clearance.

The wear adjusting device 9 here comprises a synchronization unit 10 with an adjusting device 11 and a driving device 12. The synchronization unit 10 also has a synchronizing means 13, here for example a chain, and two synchronizing wheels 13a, 13'a, for example sprockets. The synchronizing means 13 and the synchronizing wheels 13a, 13'a are here between the bearing wall 40a of the tightening section 40 of the caliper 4 and the cover 4a, that is outside the Zuspannabschnitts 40, arranged. The synchronizing means 13 couples the adjusting device 1 1 and the driving device 12d such that their rotational movements are synchronous. This will be explained in more detail below.

The adjusting device 1 1 is arranged in the one spindle unit 5 coaxial therewith, to whose threaded spindle 6 and the associated spindle axis 5 a. A Nachstellerachse 1 1 e of the adjusting device 1 1 extends in the spindle axis 5a. The adjusting device 1 1 is inserted into the hollow threaded spindle 6 and has a Nachstellerwelle 1 1 a and a Nachstellerabtriebselement 1 1 b (see Fig. 3 and Fig. 7). The Nachstellerabtriebselement 1 1 b is rotatably coupled within the Gewindindestem- 6 with this and in the longitudinal direction of the Nachstellerachse 1 1e and thus the spindle axis 5a (see Fig. 7).

The drive 8 of the adjusting device 1 1 of the wear adjusting device 9 comprises an actuator 8a, which is connected to the brake rotary lever 7, and a drive element 8b, which is coupled to the adjusting device 11.

The components and functional groups of the adjusting mechanism of the adjusting device 1 1 are the drive side with the drive element 8b and the output side with the adjuster shaft 1 1a and the Nachstellerabtriebselement 1 1 b coupled. Such an adjustment mechanism is e.g. in the document DE 10 2004 037 771 A1 described in detail.

For the wear adjustment positioning of the adjusting device 1 1 in the brake caliper 4 is required. This positioning on the one hand has a bearing of the adjusting device 1 1, e.g. a gimbal bearing, and centering in a bore 14 of the caliper 4. On the other hand, an angular position of the adjusting device 1 1 in the brake caliper 4 to the adjuster axle 1 1 e after adjustment and adjustment to the respective components ensured by a fixation of the angular position. A fixation of the angular position is required so that the function of acting within the adjusting device 11 stop the transmission mechanism relative to the stationary brake caliper 4 is effective.

This positioning of the adjusting device 1 1 is carried out by a storage arrangement.

The storage arrangement of the adjusting device 1 1 here comprises a bearing disk 1 1 d, which in the application side shaft end 1 1 c of the adjustment direction 1 1 in the application-side bearing wall 40a of the application section 40 of the brake caliper. 4 supported or inserted, is secured against rotation and, for example, with a tab in this way a stationary stop for the transmission mechanism of the adjuster 1 1 forms. For this purpose, a more detailed description of, for example, the patent EP 2 307 753 B1 can be found. The application-side shaft end 1 1 c of the adjuster shaft 1 1 a is arranged outside the Zuspannabschnitts 40 between the bearing wall 40 a and the lid 4 a and rotatably connected to the synchronizer 13 a.

The driver device 12 has a driver shaft 12a with a driver output element 12b (see FIG. 3) and a driver axle 12e. The entrainment device 12 is coaxial with the other spindle unit 5 ', arranged to the threaded spindle 6' and to the spindle axis 5'a. In this case, the driving axle 12e is located in the other spindle axis 5'a. The driver shaft 12a is inserted with the Mitnehmerabtriebselement 12b in the hollow threaded bolt 6 'and rotatably coupled via the Mitnehmerabtriebselement 12b with the threaded shaft 6', and slidably disposed in the longitudinal direction of the driver axis 12e and thus the other spindle axis 5'a (see Fig. 7). ,

A clamping end 12c of the carrier shaft 12a is supported or mounted via a bearing disk 12d in the application-side bearing wall 40a of the brake application section 40 of the brake caliper 4, coupled in a rotationally fixed manner to the other synchronizer wheel 13'a and extends through the bearing wall 40a and the cover 4 In this case, the application-side shaft end 12c is designed as an actuating end with an unspecified profile for attachment of a tool for adjusting the wear-adjusting device 9 during maintenance work and arranged to be accessible outside the cover 4a.

The spindle axes 5a, 5'a, adjuster axis 1ee, the driver axis 12e and the brake disk axis 2a of the brake disk 2 are arranged parallel to one another.

The adjusting device 1 1 and the driver 12 are coupled via the synchronizer 13 such that a rotational movement of the threaded stem 6 about its spindle axis 5a including the adjuster axle 1 1 e causes a rotational movement of the threaded stem 6 'about the spindle axis 5'a including the driving axle 12e and vice versa. The synchronization means 13 is arranged here on the outside of the application-side wall 40 of the application section 40 of the brake caliper 4. In this embodiment, the synchronizer wheels 13a, 13'a sprockets and the synchronizer 13 are a chain. This creates a synchronous movement of the threaded shaft 6, 6 'of the spindle units 5 and 5' in Verschleißnachstellvorgängen (drive by the adjuster 11) and settings during maintenance, eg pad change, (manual drive on the operating end of the cam 12) reached. In this conventional embodiment, the adjuster 1 1 and the entrainment means 12 are first used without the synchronizer means 13 from the lining shaft side B forth in the application section 40 of the caliper 4. In this case, the upper ends of the adjuster 1 1 and the driving device 12 extend through the bearing wall 40a to the outside. Then, the synchronizer 13 and the synchronizer wheels 13a, 13'a are mounted from outside to the upper ends of the adjuster device 11 and the entrainment device 12 that project through the bearing wall 40a.

FIG. 2 shows a schematic view of an application side A of a brake caliper 4 of a first embodiment of a disc brake 1 according to the invention with a synchronization unit 10. Fig. 3 shows a schematic perspective view of the synchronization unit 10 of the first embodiment of Fig. 2. The application section 40 of the caliper 4 is provided in the assembled state of the caliper 4 with the application device, of which here the rotary brake lever 7 with a lever arm 7a by a Opening in the upper region of Zuspannabschnitts 40 can be seen. An unillustrated brake cylinder is mounted above this opening, wherein the brake cylinder or the like with an actuating rod. through this opening with the lever arm 7a of the brake rotary lever 7 cooperates, which will not be described here.

In the bearing wall 40a of the Zuspannabschnitts 40 of the caliper 4 are two holes 14, 14 ', each with a bore center point 14a, 14'a introduced. Through the one, in the figure 2 arranged on the right, bore center point 14a extend a spindle axis 5a and the Nachstellerachse 1 1 e. The other spindle axis 5'a and the cam axle 12e extend through the other bore center 14'a. The adjusting device 1 1 is thus located below the right-hand bore 14, and the entrainment device 12 is arranged below the other bore 14 '.

3 shows the assembled synchronization unit 10 with the adjusting device 11 and the entrainment device 12. The term "mounted" is to be understood here as meaning that all components of the synchronization unit 10, namely the adjuster 1 1, the driver 12, the synchronizer 13, and the synchronizer wheels 13 a, 13 'a, are assembled as a preassembled group. In this case, this means that the synchronizing wheel 13a on the adjuster shaft 11a of the adjusting device 11 and the synchronizing wheel 13'a on the driving shaft 12a of the entrainment device 12 are each attached in a rotationally fixed manner, and that the synchronizing means 13, the chain, on the synchronizer wheels 13a, 13'a is placed and engaged with these.

The synchronizing means 13 is arranged in this way at the upper ends of the adjusting device 1 1 and the driving device 12.

The thus assembled synchronization unit 10 is introduced as a whole in a mounting position, which is shown in Fig. 4a and described below, completely in the feed section 40 of the caliper 4 through the bottom plate 41 and then in further steps to the in FIG. 4c and Fig. 5 shown end position brought. Subsequent assembly of the synchronizer 13 and the synchronizer wheels 13a, 13'a is therefore no longer necessary.

The synchronization unit 10 is shown in Fig. 3 in the position in which they, as indicated in Fig. 2 by the holes 14, 14 'indicated and shown in Fig. 4c, in the Zuspannabschnitt 40 of the caliper 4 in its end position is installed.

In this first embodiment, the storage arrangement of the adjusting device 1 1, the bore 14, a collar 14b, a support plate 15 and a bearing block 7b with a holding portion 7d. In addition, the storage arrangement may have a fastening element 16a.

The support plate 15 is arranged in a region of the upper end of the adjuster shaft 1 1 a of the adjusting device 11 below the rotatably connected to the adjuster shaft 1 1a synchronous rads 13a and forms a bearing point for the adjuster shaft 1 1 a.

The Nachstellerwelle 11 a is provided with an actuating end for manual operation, e.g. when resetting, even further in the direction of the Nachstellerachse 1 1 e of the synchronizer 13a upwards. This will not be explained further here.

In Fig. 3, the Nachstellerabtriebselement 1 1 b is shown in a sleeve shape. At the lower end of the cam shaft 12a is the Mitnehmerabtriebselement 12b rotated attached. On these output elements 1 1 b, 12b will not be discussed further here.

The other support disk 15 'is arranged in a region of the upper end of the driving shaft 12a of the driving device 12 below the synchronizing wheel 13'a rotationally fixed to the driving shaft 12a and forms a bearing disk with a bearing point for the driving shaft 12a.

In this way, a bearing arrangement of the driver 12 is formed on the bearing wall 40 a of the brake application portion 40 of the brake caliper 4. This bearing arrangement of the entrainment device 12 comprises the bore 14 ', the collar 14'b, the support disk 15' and the bearing block 7b with a further holding portion 7d. In addition, this mounting arrangement of the driver device 12 may have a fastening element 16'a. The synchronizer means 13, the chain is engaged with the synchronous wheels 13a, 13'a and is disposed above or on the support discs 15, 15 '.

Each support disk 15, 15 'has, alternately at its edge, two diametrically opposed circular section edges 15a, 15'a and two diametrically opposite flats 15b, 15'b. The flats 15b, 15'b are parallel to each other.

At least one of the respective two circular section edges 15a, 15'a is provided with a fastening section 15c, 15'c. The attachment portion 15c, 15'c is formed here as a kind of notch.

In the installed position, the support disks 15, 15 'are arranged such that the two circular section edges 15a, 15'a with one fastening section 15c, 15'a of a respective mounting recess 16, 16' of Zuspannabschnitts 40 of the caliper 4, wherein a fastener 16a between the respective mounting portion 15c, 15'c and the respective associated mounting recess 16, 16 'is introduced and an anti-rotation of the respective support disk 15, 15' relative to the clamping portion 40 of the caliper 4 forms. In this installed state, the support disks 15, 15 'are axially held with their respective circular section edges 15a, 15'a between collar 14b, 14'b and the bearing wall 40a of the application section 40a of the brake caliper 4. This will be explained further below in connection with FIGS. 6a, 6b. In the installed position of the synchronization unit 10 shown in FIGS. 2 and 3, the flats 15b, 5'b of the support disks 15, 15 'are all arranged parallel to one another, extending at right angles to an imaginary connecting line of the bore center points 14a, 14'a. The assembly of the synchronization unit 10 (adjusting device 1 1 and driving device 12) takes place with the components shown in Fig. 3 from the brake disk side through the Bodenblechflansch 4 in the Zuspannabschnitt 40 of the caliper 4 and will be described in detail. 4a-4e show diagrammatic views of the synchronization unit 10 according to FIG. 3 in different installation positions from a covering shaft side B or from the base plate flange 41 (see FIG. 1) of the disc brake 1 according to the invention. FIG. 5 shows a schematic partial sectional view of the disc brake 1 according to the invention with the synchronization unit 10 according to FIG. 3. 6a-b show enlarged schematic plan views of the synchronization unit 10 according to FIG. 3 seen from the application side A ago. FIG. 7 shows a schematic partial sectional view of the synchronization unit 10 according to FIG. 3 with the cross-member 17 mounted. In Fig. 4a is a schematic view of the Bodenblechflansch 41 ago seen with a view of the bearing wall 40a of Zuspannabschnitts 40 from the inside.

Around the bores 14, 14 ', a collar 14b, 14'b is arranged on the inner side of the bearing wall 40a. Each collar 14b, 14'b has a collar edge 14c, 14'c, whose inner radius is smaller than an inner radius of the respectively associated bore 14, 14 'is formed.

Each collar 14b, 14'b is arranged at a distance in the direction of the brake disk axis 2a to the inside of the bearing wall 40a at least in relation to the respective bore center point 14a, 14'a with diametrically arranged holding regions 14f, 14'f. In the assembled state, the circular section edges 15a, 15'a facing the brake disk 2 are in each case in contact with the surfaces of the associated holding regions 14f, 14'f. The holding regions 14f, 14'f of the collars 14b, 14'b form an axial fixing of the support disks 15, 15 'in the direction of the brake disk axis 2a on the brake disk 2.

Each collar 14b, 14'b surrounds the associated bore 14, 14 'with its respective collar edge 14c, 14'c at an angle of approximately 240 ° and is provided with a respective ner collar opening 14d, 14'd provided. The collar openings 14d, 14'd face each other. At the collar openings 14d, 14'd, the ends of the collar edges 14c, 14'c are provided with chamfers (not shown, but conceivable). Fig. 4a shows the first installation step of the synchronization unit 10. The adjuster 1 1 and the cam device 12 are together with the applied synchronizer 13, the chain, from the side through the base plate 41 (see Fig. 1) in the interior of Zuspannabschnitts 40 of Caliper 4 of the disc brake 1 used. The support disks 15, 15 'are rotated around the respective axle 11e, 12e in such a way that the flat portions 15b, 15'b run parallel to the imaginary connecting line of the bore center points 14a, 14'a. The adjuster device 1 1 and the entrainment device 12 are initially arranged side by side so that a distance of the adjuster shaft 1 1 e and the cam shaft 12 e is smaller than a distance of the bore center points 14 a, 14 'a, and that to the respective bore 14, 14 'facing circular section edges 15a, 15a of the support disks 15, 15' in front of the respective collar opening 14d, 14'd are arranged.

In the next installation step, the end of which is shown in FIGS. 4b and 6a, the adjuster device 1 and the entrainment device 12 are pushed apart in the direction of the imaginary connecting line of the bore center points 14a, 14'a so that the support disks 15, 15 ' with the circular section edges 15a, 15'a facing the respective bore 14, 14 'being pushed over the respective bore 14, 14' between the respective collar 14b, 14'b and the bearing wall 40a, until these circular section edges 15a, 15 ' a come to rest on the respective wall between collar 14b, 14'b and the bearing wall 40a. This wall is not shown here, but easy to imagine.

In this case, the flats 15b, 15'b respectively to the holding portions 14f, 14'f of the collar 14b, 14'b. In addition, the adjuster axis 11e passes through the bore center 14a of the left-hand bore 14 shown in FIG. 4b. In the same way, the driver axis 12e extends through the bore center 14'a of the right-hand bore 14 'shown in FIG. 4b. The chain, ie the synchronizer 13 has been stretched further. Now in a next installation step, the support disks 15, 15 'in each case rotated by 90 ° about the Nachstellerachse 1 1 e and the driver axis 12e. In this example, the support plate 15 of the adjusting device 1 1 is rotated clockwise, whereas the support plate 15 'of the driver 12 against the Turned clockwise. The result is shown in FIG. 4c in a schematic view from the brake disk side and FIG. 5 in a schematic partial sectional view.

Each circular section edge 15a, 15'a of the support disks 15, 15 'is now arranged between the respective holding region 14f, 14'f of the associated collar 14b, 14'b and the bearing wall 40a of the application section 40 of the brake caliper 4.

An axial location of the support disks 15, 15 'and thus of the adjusting device 11 and the driver device 12 in the direction of the brake disk axis 2a as seen on the brake disk 2 is formed by the collar 14b, 14'b.

In the opposite direction of the brake disc axis 2a facing away from the brake disc 2, an axial fixation, e.g. formed by support plates between the inside of the bearing wall 40a and the side facing the inner side of the bearing wall 40a of the respective circular section edges 15a, 15'a of the support disks 15, 15 '. It is also possible for the collars 14b, 14'b (FIGS. 5 and 7), below the collars 14b, 14'b, to have grooves, which are formed with the thickness of the flange, extending in the direction of the brake disk axis 2a, not designated walls The circular segment edges 15a, 15'a of the support disks 15, 15 'are then held in the assembled state in these grooves.

For a fixation between the respective support plate 15, 15 'and the associated bore 14, 14' is achieved.

The attachment portions 15c, 15'c face the attachment recesses 16, 16 '(see FIGS. 2 and 6b).

Fig. 5 shows the built-in synchronization unit 10 in its end position in the application section 40 of the caliper 4. The application device with brake rotary lever 7, spindle units 5, Traverse 17 and other components are not yet installed.

In a subsequent installation step, a bearing block 7b is inserted between the adjuster device 11 and the entraining device 12, wherein the bearing block 7b bears against the bearing wall 40a with a longitudinal side (see FIGS. 4d-e and 7). The bearing block 7b forms with its longitudinal sides guide portions for the synchronizer 13. For this purpose, one of the longitudinal sides of a slightly curved clamping portion 7c. In this way, the chain is held and guided as a synchronizing means 13 tensioned. In addition, the bearing block 7b is provided on its narrow sides, each with a holding portion 7d. Each holding section 7d positively contacts a flattening 15b, 15'b of the support disks 15, 15 'and thus forms an anti-rotation lock of the support disks 15, 15'. On the side facing the Bodenblechflansch 41 of the bearing block 7b this forms an abutment for the brake rotary lever 7 (see Fig. 7), which is not described here.

A further radial fixation and rotation of the support disks 15, 15 'is shown in Fig. 6b, for example, for the support plate 15 of the adjuster 11 is shown enlarged. In this case, as already mentioned above, the fastening element 16a in the form of a ball between the mounting portion 15c of the support disk 15 and the associated mounting recess 16 of the Zuspannabschnitts 40 of the caliper 4, e.g. in the respective wall of each collar 14b, 14'b, pressed in from the outside. In order for a radial rotation of the support plate 15 relative to the clamping portion 40 of the caliper 4 is formed.

Finally, the brake rotary lever 7 and the threaded pistons 6, 6 'with the cross member 17 and other associated, not further described accessories in the application section 40 of the caliper 4 from the lining shaft side B ago installed. This is shown in FIG. 7 in a schematic partial sectional view.

FIG. 8 shows a schematic view of the application side Z of a second exemplary embodiment of the disc brake 1 according to the invention with a variant of the mounting arrangement. FIG. 9 shows a schematic plan view of a bore 14 in the bearing wall 40a of the tightening section 40 of the caliper 4. FIGS. 10a and 10b show enlarged sectional views according to line XX of FIG. 8. FIG. 11 shows an enlarged sectional view according to line XI. Xl of Fig. 8.

In this second exemplary embodiment, the bearing arrangement of the adjusting device 1 1 has the bore 14 with a fastening recess 16, a head plate 18 with cylinder segments 18 a and surface segments 18 b. The application section 40 of the caliper 4 has already been described in detail above in connection with FIG. 2. In this second embodiment, the storage arrangement of the adjusting device 1 1 and also the driving device 12 is formed differently from the first embodiment.

In the bearing wall 40a of the application section 40 of the caliper 4, as in the first embodiment, the two bores 14, 14 'are introduced with their bore center points 14a, 14'a. The adjusting device 1 1 is disposed below or behind the right-hand bore 14 in the application section 40, wherein the driving device 12 is located below or behind the other bore 14 '.

The synchronization unit 10 with the adjuster 1 1 and the driver 12 is disposed within the Zuspannabschnitts 40 below or in the view of FIG. 8 behind the bearing wall 40 a. In this case, the synchronizing means 13 and the synchronizing wheels 13a, 13'a are located directly behind the bearing wall 40a within the tightening section 40.

The attachment of the adjusting device 1 1 takes place in the bore 14 by means of a head plate 18 which on the one hand firmly connected to the bearing disc 1 1 d of the adjuster 1 1 and on the other hand after positioning of the adjuster 1 1 axially with cylinder segments 18a and radially with surface segments 18b in the thereto correspondingly designed bore 14 is fixed. This will be explained in detail below. The head plate 18 has a to the interior of the Zuspannabschnitts 40 facing conical mounting portion 20 which is fixedly connected to the bearing disc 1 1 d of the adjusting device 1 1 (Fig. 10a). The attachment portion 20 is connected at its outer edge to a disk portion 21 to which the cylinder segments 18a and the surface segments 18b are attached. The disc portion 20a lies in a plane substantially parallel to the

Brake disc 2 extends and is perpendicular to the Nachstellerachse 1 1 e. The cylinder segments 18a extend axially into the bore 14, with the surface segments 18b extending radially outward. The cylinder segments 18a and the surface segments 18b are circumferentially alternately arranged on the outer circumference of the disk portion 20a of the head plate 18. This can be seen in Fig. 8 hinted and in Fig. 10a, 10b and 1 1 shown in section. The adjusting device 1 1 is inserted from the lining shaft side B into the provided bore 14 in the bearing wall 40a of the brake application section 40 of the brake caliper 4 such that the flat surface segments 18b with their contact surfaces 18d on a mating surface 40b on the inside of the bearing wall 40a of the Zuspannabschnitts 40th rest around the hole 14 around. In this way, an axial positioning of the adjusting device 1 1 in the axial direction is initially formed only in one direction with respect to the wall 40.

The cylinder segments 18a are arranged in the bore 14 in such a way that they lie with their outer surfaces against the bore inner wall, whereby a radial positioning or centering of the adjusting device 11 is formed. In addition, the cylinder segments 18a in their edge regions on fixing portions 18c, which are intended to cooperate with a respective mounting recess 16 of the bore 14. These fastening recesses 16 are formed in an outer edge region of the bore 14 in this (see Figs. 9 and 10a). In the example shown, two fastening recesses 16 are indicated with two fixing sections 18c. Of course, more or less possible.

The entrainment device 12 is axially fixed with its bearing disc 12d (see FIG. 1) in the hole 14 'arranged on the left in FIG. 8 in unspecified manner with an unspecified bore securing ring, wherein a fixation in the angular position e.g. is formed by a pressed fastener similar to the above already indicated. This is not discussed here and is easy to imagine. After mounting the application device in the application section 40 of the caliper 4, a correct angular position of the adjuster 1 1 is adjusted by the adjuster axis 1 1 and the spindle axis 5 a and the bore center point 14 by clocking the disc brake 1. The term clocks are short clamping operations of the disc brake 1 to understand.

Thereafter, the cylinder segments 18a are pressed in their fixing sections 18c by a tool with a direction of action 19 (FIG. 10a) pointing radially outward with respect to the bore center point 14a into one of the fastening recesses 16 of the bore 14 of the brake caliper 4. By this forming process creates a positive connection, which ensures the fixation of the adjusting device 1 1 both in an angular position and in the other axial direction in the direction of the brake disc 2. This is shown in Fig. 1 1. FIGS. 12 and 13 show schematic views of an application side A of a third exemplary embodiment of the disk brake 1 according to the invention with a further variant of the synchronization unit 10. Fig. 14 shows a schematic plan view of a caliper 4 with a partial sectional view along line XIV of Fig. 12-13. An enlarged view of the area XV of FIG. 14 is shown in FIG. FIG. 16 shows the enlarged view of FIG. 15 in an assembly step. FIG. A washer 1 18 is shown in Fig. 16 in a schematic perspective view. 18 shows a schematic perspective view of a support sleeve. In the third exemplary embodiment, the bearing arrangement of the adjusting device 1 1 comprises the bore 14, a support sleeve 1 16, a washer 1 18 and a securing element 1 19.

The caliper 4 is constructed with its Zuspannabschnitt 40 with the holes 14, 14 ', introduction and the arrangement of the synchronization unit 10 with the adjusting device 1 1 and the cam device 12 similar to the second embodiment of FIG. Reference is made to the above description, with only the differences being explained here. In contrast to the second exemplary embodiment, a contour with two fixing sections 4b in the region of the bore 14 is provided on the outside of the bearing wall 40a of the tightening section 40 of the caliper 4. The two fixing portions 4b are e.g. Blind holes, which are arranged diametrically to the bore center point 14 a of the bore 14. In Fig. 13, they are both in a horizontal plane to the drawing of the bore center points 14a and 14'a and the spindle axes 5a, 5'a.

In the third embodiment, the adjusting device 1 1 is also positioned by the bore 14 in the bearing wall 40a of the brake application section 40 of the brake caliper 4, but in contrast to the second embodiment by means of a support sleeve 16 and a washer 1 18 relative to the caliper 4 in angular position and axial Direction determined. In this case, the support sleeve 1 16 is connected in a manner not shown but conceivable with the adjusting device 1 1, for example, with the bearing disc 1 1 d, or forms the bearing disc 1 1 d. The bore 14 is closed in the assembled state of the disc brake 1 with a closure lid 1 15 and sealed to the outside. The entrainment device 12 is positioned in the bearing wall 40a as in the second embodiment.

The support sleeve 1 16 comprises a support sleeve axis 1 16a, a support body 1 16b, a flange 116c and a radial toothing 16d.

FIG. 18 also shows an attachment 16g with a profiling 16h. This approach 1 16g may e.g. an upper end adjusting device 1 1, an intermediate part to or the bearing disc 11d of the adjusting device 11 and will not be considered here.

The support body 116b is a hollow circular cylinder having a through-opening 16i which has an inner profile 16j, 16k. The inner profile 1 16j, 116k corresponds to the profiling 1 16h of the approach 1 16g. The outer surface of the support body 1 16b is provided with the radial toothing 116d. The radial toothing 1 6d is formed here as external and spur toothing, wherein the teeth in parallel to the support sleeve axis 1 16a on the outer surface of the support body 1 16 starting at one end of the support body 16 1 to the other end of the support body 16b to shortly before extend the flange 116c.

The other end of the support body is fixedly connected to the flange 116c. An end face 16f of the flange 16c faces the radial toothing 116d of the supporting body 16b. The one end of the support body 16b is provided with a chamfer, by means of which also the ends of the teeth of the radial toothing 16d are inclined. In the radial toothing 116d, a circumferential groove 1 16e is formed, which is arranged from the other end of the support body 1 16b at a distance which is about one quarter of the total length of the support body 116b.

The washer 1 8 is shown in perspective in Fig. 17. The washer 1 18 is a kind of annular disc whose annular body has a central opening 118 c. The circumferential inner side of the opening 1 18c is provided with an internal toothing 1 18a. This internal toothing 118a is designed as an internal straight toothing and corresponds to the radial toothing 16d of the support body 16b of the support sleeve 116. In addition, the washer 1 18 here has two diametrically arranged fixing sections 1 18b on the annular body.

During assembly, the support sleeve 1 16 is inserted from the inside of the Zuspannab- section 40 of the caliper 4 in the bore 14 so that the support body 116b protrudes through the bore 14 to the outside. In this case, the end face 116f of the flange 1 16c rests on a bearing surface 4c on the inside of the bearing wall 40a. This bearing surface 4c can be processed, for example milled.

Between the radial toothing 116d of the support body 16b and the flange 16c, a narrow shaft extension is formed, which bears against the inner wall in the bore 14 and forms a centering. The radial toothing 16d also extends through most of the bore 14.

Now the washer 1 18 with its internal teeth 118 a on the Radial- toothing 1 16 d, which protrudes with the support body 116 b of the support sleeve 1 16 from the bore 14 to the outside, pushed. Previously, the washer 1 18 is rotated so that its fixing portions 1 18b facing the fixing portions 4b of the bearing wall 40a (see also Fig. 13). In this case, the chamfer of the support body 16b facilitates threading of the internal teeth 1 18a for engagement with the radial toothing 16b of the support body 16b. The washer 1 18 is pushed until it abuts against the outer surface of the bearing wall 40 a and by applying a securing element 1 19, e.g. a shaft securing ring, in the groove 116 e of the support body 116 b axially against the Stützkör- 1 16 b of the support sleeve 1 16 set. In this way, the support sleeve 1 16 is fixed by its flange 1 16c and by the washer 118 with the securing element 1 19 axially opposite the bearing wall 40a of the Zuspannabschnitts 40 of the caliper 4. Thus, also coupled to the support sleeve 1 16 or connected adjuster 11 is fixed axially on the brake caliper.

The washer 118 is rotatably connected to the support sleeve 1 16b via their internal teeth 1 18a, which is in rotationally fixed engagement with the radial teeth 116d of the support sleeve 116. After appropriate adjustment of the associated with the support sleeve 1 6 adjuster 1 1 as described above, the fixing portions 118b of the washer 18 are connected to the fixing portions 4b of the contour of the bearing wall 40a of the caliper 4, for example by caulking. This is a positive connection between washer 118 and the bearing wall 40a, ie caliper 4, achieved. About the thus formed Verstemmkontur the fixation of washer 118 on the bearing wall 40a with the washer 1 18 via the teeth 118a, 116d rotatably connected support sleeve 116 is fixed together with the adjusting device 11 in angular position. Since the compound of washer 1 18 and bearing wall 40a of the caliper 4 is integrated by the Verstemmvorgang in the assembly process of the disc brake 1, the adjuster 1 1 the circumstances (tolerance levels of the individual components) can be adjusted and fixed accordingly. This results in a simple and cost-effective installation with a secure fixation of the adjusting device 10 together with the synchronization unit 10 by the greatest possible positive fit. There are no additional additional parts necessary.

In the assembled state, the spindle axis 5a, the Nachstellerach- se 1 1 e and the support sleeve axis 1 16a run together through the bore center point 14a.

The embodiments described above do not limit the invention, which is modifiable within the scope of the appended claims.

For example, it is conceivable that the disc brake 1 can have more than two spindle units 5, 5 'or only one.

LIST OF REFERENCE NUMBERS

1 disc brake

2 brake disc

2a brake disc axle

3 brake pad

3a brake pad carrier

4 caliper

4a lid

4b fixing section

4c bearing surface

5, 5 'spindle unit

5a, 5'a spindle axis

6, 6 'threaded bolt

6a, 6'a pressure piece

7 brake lever

7a lever arm

7b bearing block

7c clamping section

7d holding section

8 drive

8a actuator

8b drive element

9 wear adjuster

10 synchronization unit

1 1 adjuster

1 1 a adjuster shaft

1 1 b Adjuster output element

1 1 c shaft end

11 d bearing disc

11e adjuster axle

12 carrier device

12a drive shaft

12b Mitnehmerabtriebselement

12c shaft end

12d bearing disc

12e driving axle

13 synchronizing means

13a, 13'a synchronous wheel 14, 14 'bore

14a, 14'a bore center point

14b, 14'b collar

14c, 14'c collar edge

14d, 14'd collar opening

14e contact surface

14f, 14'f holding area

15, 15 'support disk

15a, 15'a circle edge

15b, 15'b flattening

15c attachment section

16, 16 'mounting recess

16a fastener

17 traverse

18 head plate

18a cylinder segment

18b area segment

18c fixing section

18d bearing surface

19 effective direction

20 attachment section

20a disc section

40 clamping section

40a storage wall

40b mating surface

41 floor panel flange

42 floor panel

1 15 cap

1 15a fastener

1 15b fixing section

116 support sleeve

1 16a support sleeve axis

116b support body

1 16c flange

1 16d radial toothing

116e groove

1 16f face

1 16g approach

1 16h profiling 116Ϊ passage opening

116j-k inner profile

118 washer

118a internal toothing

118b fixing section

118c opening

119 fuse element

A Zuspannseite

B lining shaft side

Claims

claims

Disc brake (1), preferably pneumatically actuated, in particular for a motor vehicle, with a brake caliper (4) which has an application section (40) with a brake application device, preferably with a brake rotary lever (7), at least one wear adjustment device (9) for adjusting wear brake pad (3) and a brake disc (2) with a synchronization unit (10) comprising an adjusting device (11), a driving device (12) and a synchronizing means (13), wherein the adjusting device (1 1) and the driving unit (12 ) are preferably each inserted into a threaded temple (6, 6 ') of a spindle unit (5, 5') and are mounted with bearing arrangements on a bearing wall (40a) of the application section (40) of the brake caliper (4),

characterized,

in that the synchronization unit (10) with the adjusting device (11) and the driving device (12) is installed as a preassembled group in the tightening section (40) of the caliper (4), wherein the synchronizing means (13) in the region of the bearing arrangements on the bearing wall (40a) within the Zuspannabschnitts (40) of the caliper (4) is arranged.

Disc brake (1) according to claim 1, characterized in that the bearing arrangement of the adjusting device (1 1) has a bore (14) in the bearing wall (40a) of the Zuspannabschnitts (40) of the caliper (4) and a collar (14b) on the bearing wall (40a) within the Zuspannabschnitts (40) of the caliper (4), a support disc (15) on the adjusting device (1 1) and a bearing block (7b) having a holding portion (7d).

Disc brake (1) according to claim 2, characterized in that a bearing arrangement of the driver device (12) has a bore (14 ') in the bearing wall (40a) of the application section (40) of the caliper (4) and a collar (14'b) the bearing wall (40a) of the Zuspannabschnitts (40) of the caliper (4), a support disc (15 ') on the entrainment device (12) and the bearing block (7b) with a further holding portion (7d).

Disc brake (1) according to claim 3, characterized in that each support disk (15, 15 ') has circumferentially alternately at its edge two diametrically opposite circular section edges (15a, 15'a) and two diametrically opposite flats (15b, 15'b), the flattening gene (18b, 15'b) of a respective support disk (15, 15 ') in each case parallel to each other.

5. Disc brake (1) according to claim 4, characterized in that each of the bores (14, 14 ') on the inside of the bearing wall (40 a) surrounded by a respective collar (14 b, 14' b) at an angle of about 240 ° wherein each collar (14b, 14'b) is provided with a respective collar edge (14c, 14'c) and a respective collar opening (14d, 14'd).

6. Disc brake (1) according to claim 5, characterized in that the

Collar openings (14d, 14'd) face each other.

7. Disc brake (1) according to claim 6, characterized in that each collar edge (14 c, 14 'c) of each collar (14 b, 14' b) has an inner radius which is smaller than an inner radius of the respectively associated bore (14, 14 ') is trained.

8. Disc brake (1) according to claim 7, characterized in that each collar (14b, 14'b) is provided with respect to a respective bore center (14a, 14'a) with diametrically arranged holding portions (14f, 14'f).

9. Disc brake (1) according to claim 8, characterized in that in an installed state of the synchronization unit (10) the flats (15b, 15'b) of the support discs (15, 15 ') of the adjusting device (11) and the entrainment device (12 ) are all arranged parallel to one another, whereby they extend at right angles to an imaginary connecting line of bore center points (14a, 14'a) of the bores (14, 14 ').

10. Disc brake (1) according to claim 9, characterized in that in the installed state of the synchronization unit (10) a bearing block (7b) between the adjuster (11) and the entrainment means (12) is arranged, wherein the bearing block (7b) with a longitudinal side on the inside of the bearing wall (40a) is applied, wherein in each case a lateral holding portion (7d) on a narrow side of the bearing block (7b) with a respective flattening (15b, 15'b) of each support disk (15, 15 ') in a form-fitting manner Contact stands and a rotation of the support plates (15, 15 ') forms.

1 1. Disc brake (1) according to claim 10, characterized in that the bearing block (7b) with its longitudinal sides guide portions for the synchronizing means (13), e.g. a chain forms.

Disc brake (1) according to claim 10 or 11, characterized in that the bearing block (7b) forms an abutment for the brake rotary lever (7).

13. Disc brake (1) according to one of claims 9 to 12, characterized in that the storage arrangement of the adjusting device (11) and / or the storage arrangement of the driver device (12) each have a fastening element (16a) between the respective support disk (15, 15 ' ) and the application section (40) of the caliper (4).

14. Disc brake (1) according to claim 1, characterized in that the bearing arrangement of the adjusting device (1 1) has a bore (14) in a bearing wall (40 a) of the Zuspannabschnitts (40) of the caliper (4), a bearing disc (11 d) and a head plate (18) having at least one cylinder segment (18a) and at least one surface segment (18b) on the Nachstellein direction (1 1).

15. Disc brake (1) according to claim 14, characterized in that the head plate (18) has a to the interior of the application section (40) facing conical mounting portion (20) which with the bearing disc (1 1 d) of the adjusting device (1 1 ), wherein the attachment portion (20) is connected at its outer edge with a disc portion (21) on which the at least one cylinder segment (18a) and the at least one surface segment (18b) are mounted.

16. Disc brake (1) according to claim 15, characterized in that the at least one cylinder segment (18 a) hineinerstreckt axially into the bore (14) and at least partially in a positive contact with the bore (14), wherein the at least one Surface segment (18b) extends radially outward and with a bearing surface (18d) on a mating surface (40b) on the inside of the bearing wall (40a) of the Zuspannabschnitts (40) around the bore (14) around.

17. Disc brake (1) according to claim 16, characterized in that the at least one cylinder segment (18 a) at least one fixing section (18c) which is positively connected to at least one mounting recess (16) of the bore (14).

18. Disc brake (1) according to claim 17, characterized in that the at least one fastening recess (16) of the bore (14) at the end of the bore (14) is arranged, which lies on the outside of the bearing wall (40 a).

19. Disc brake (1) according to claim 1, characterized in that the bearing arrangement of the adjusting device (1 1) has a bore (14) in a bearing wall (40a) of the application section (40) of the caliper (4), a support sleeve (116), a washer (1 18) and a securing element (1 19).

20. Disc brake (1) according to claim 19, characterized in that the support sleeve (1 16) comprises a support body (1 16b) with a flange (1 16c) and a radial toothing (1 16d).

21. Disc brake (1) according to claim 20, characterized in that the radial toothing (116d) is formed as external and spur toothing, with their teeth extending parallel to a support sleeve axis (16a) over the outer surface of the support body (116b).

22. Disc brake (1) according to claim 21, characterized in that the washer (1 18) as a kind of annular disc with an annular body having a central opening (118 c) is formed, wherein the opening (1 18 c) with an internal toothing (1 18 a ), which is designed as Innengeradverzahnung and with the radial toothing (116d) of the support body (1 16b) of the support sleeve (116) corresponds, is provided.

23. Disc brake (1) according to claim 22, characterized in that the support sleeve (1 16) in the installed state of the adjusting device (1 1) is inserted into the bore (14), that the support body (1 16b) through the bore ( 14) protrudes outwardly from the bearing wall (40a), wherein an end face (1 16f) of the flange (1 16c) rests on a bearing surface (4c) on the inside of the bearing wall (40a).

24. Disc brake (1) according to claim 23, characterized in that the washer (1 18) from the outside on the support body (1 16b) is pushed, wherein the internal teeth (118a) of the washer (1 18) and the radial teeth (1 16d) of the support sleeve (1 16) are engaged, wherein the washer (1 18) on the outside of the bearing wall (40a) and axially through the securing element (1 19) on the support body (1 16b) is fixed.

Disc brake (1) according to claim 24, characterized in that the washer (1 18) has at least one fixing section (1 18b), which are positively connected to at least one fixing section (4b) on the outside of the bearing wall (40a).

Disc brake (1) according to claim 25, characterized in that the washer (1 18) has two diametrically arranged fixing sections (1 18b) on the ring body.

Method for installing a synchronization unit (10) with an adjusting device (1 1) and a driver device (12) in a brake caliper (4) of a disc brake (1) according to one of claims 1 to 13, characterized by the method steps

(51) mounting the synchronization unit (10) with the adjusting device (11) and the driving device (12), wherein a synchronization means (13) with synchronous wheels (13a, 13'a) at upper ends of the adjusting device (1 1) and the driving device ( 12) is arranged;

(52) inserting the thus assembled synchronization unit (10) in an interior of a Zuspannabschnitts (40) of the brake caliper (4) by a brake-disk-side Bodenblechflansch (41); and

(53) mounting the adjusting device (1 1) and the entrainment device (12) of the synchronization unit (10) thus introduced in a bearing wall (40a) of the application section (40) of the caliper (4). 28. The method according to claim 27, characterized in that in step (S1) mounting support disks (15, 15 ') are rotated about a respective axis (1 1e, 12e) that flats (15b, 15'b) of the support disks ( 15, 15 ') extend parallel to an imaginary connecting line of bore center points (14a, 14'a), wherein the adjuster device (11) and the driver device (12) are initially arranged side by side so that a distance of a Nachstellerachse (1 1e) and a Mitnehmerachse (12e) is smaller than a distance of the bore center points (14a, 14'a).

29. The method according to claim 28, characterized in that in step (S2) introducing to a respective bore (14, 14 ') facing circular section edges (15a, 15'a) of the support discs (15, 15') laterally in front of a respective collar opening ( 14d, 14'd) of collars (14, 14 ') of the bores (14, 14') are arranged.

30. The method according to claim 29, characterized in that in step (S3) mounting in a first sub-step the adjuster (1 1) and the entrainment device (12) in the direction of the imaginary line connecting the bore centers (14a, 14'a) so far apart be pushed, that the support disks (15, 15 ') with the to the respective bore (14, 14') facing circular section edges (15a, 5'a) ahead of the respective bore (14, 14 ') between the respective collar (14b , 14'b) and the bearing wall (40a) are pushed until these circular section edges (15a, 5'a) on a respective wall between collar (14b, 14'b) and the bearing wall (40a) come to rest, said Synchronous means (13) is tensioned.

31. The method according to claim 30, characterized in that in step (S3) mounting in a second sub-step, the support disks (15, 15 ') in each case by 90 ° about the Nachstellerachse (1 1e) and the Mitnehmerachse (12e) are rotated in that each circular section edge (15a, 15'a) of the support disks (15, 15 ') is interposed between a respective holding region (14f, 4'f) of the associated collar (14b, 14'b) and the bearing wall (40a) of the application section (40) of the caliper (4) is arranged.

32. A method according to claim 31, characterized in that in step (S3) mounting in a third sub-step, a bearing block (7b) through the Bodenblechflansch (41) between the adjuster (1 1) and the entrainment device (12) is inserted such that the bearing block (7b) rests with a longitudinal side on the bearing wall (40a), further biases the synchronizing means (13) and with one holding section (7d) a flattening (15b, 5'b) of the supporting discs (15, 15 ') for formation an anti-rotation of the support plates (15, 15 ') positively contacted.