DE102021126787A1 - Disc brake and suction assembly - Google Patents

Abstract

A disc brake, with a brake caliper (3) overlapping a brake disc (1), in which brake pads (51, 52) each provided with a friction lining (512, 522) and a backing plate (511, 521) are arranged, each with its friction lining (512, 522) can be pressed on both sides of the friction ring surfaces (2) of the brake disc (1), and with a suction device for sucking off the abrasion that occurs during braking, is characterized in that the suction device has two suction tube arrangements assigned to the respective brake pads (51, 52). (721, 722) and a cover (71) connecting the suction tube arrangements (711, 7212) for at least partially covering the brake disc (Fig. 1a).

Description

The invention relates to a disc brake according to the preamble of claim 1 and a suction arrangement for such a disc brake.

The applicable environmental requirements and the associated legal basis will in future bring with them increased requirements for the avoidance of fine dust. It is therefore necessary to develop technical solutions for disc brakes for a commercial vehicle that are able to minimize the escape of brake dust, in particular the fine dust content of brake dust - also referred to below as abrasion - and ideally prevent its emission.

The technical solutions available for this purpose, which are primarily focused on the passenger car sector, are largely designed to remove the brake dust from the installation space surrounding the disc brake, with or without the aid of air pressure, preferably with a suction and separation system, through a filter direct and aspirate. For this it is usually necessary to limit the surrounding space by installing cover or shielding plates around the wheel brake (see, for example, the US 2010/0096226 A1 ).

From the WO 2008/083884 A1 the use of such a suction and separation system is known, which has a fine dust filter on the one hand for the brake disc of a disc brake and on the other hand a fan and which are both positioned in a wheel rim, with the fine dust filter being hermetically sealed against the environment on the rim.

The EP 2 585 730 B1 discloses a disc brake of the generic type which is also suitable for use on commercial vehicles and has a suction and separation system. The disc brake has a brake caliper which overlaps a brake disc and in which brake pads are arranged, which are provided with friction linings and which can be pressed with their friction lining on both sides of the friction ring surfaces of the brake disc, with the friction rings outside the overlapping area of the friction linings being covered by a housing which is fixed relative to the brake caliper , which is connected to a suction device, wherein a dedusting device is provided between the housing and the suction device. This design has proven itself well, but should be further optimized. The surroundings of the vehicle, primarily the conditions in the wheel housing and inside the rim, can ensure diffuse turbulence of the resulting brake dust due to the relative wind. Likewise, the cover plates can hardly be designed in such a way that the brake is completely encapsulated. Because further encapsulation of the brake could result in corresponding thermal problems in the friction pairing.

The invention is based on the object of further developing a disc brake of the generic type in such a way that escape of the brake dust into the environment is largely prevented with simple design means. The invention also has the object of creating a suction arrangement which is particularly well suited for such a disc brake.

This object is initially achieved by a disc brake having the features of claim 1. Advantageous refinements and developments are specified in the dependent claims.

According to claim 1, a disc brake is created with a brake caliper that overlaps a brake disc, in which brake pads are arranged, each with a friction lining and a backing plate, which can be pressed with their friction lining on both sides of the friction ring surfaces of the brake disc, and with a suction device for sucking off at Braking resulting abrasion, wherein the suction arrangement has two suction pipe arrangements assigned to the respective brake layers and a cover connecting the suction pipe arrangements for at least partially covering the brake disk, which can be arranged above the brake disk.

In this way, a large proportion of the abrasion occurring during braking is reliably absorbed with simple design means on the two brake pads.

A particularly high proportion of the abrasion is absorbed when the two intake manifold arrangements are designed in the manner of a ring either entirely or essentially circumferentially, with the annular intake manifold arrangements being oriented essentially parallel to the friction surfaces of the brake disk in the assembled state. Because in this way abrasion can be sucked off virtually on the entire peripheral edge of the brake pads.

The invention is particularly advantageous for a disc brake which, in addition to the brake caliper, also has a brake carrier which can have one or two pad shafts for inserting the brake pads

According to an optional variant, the invention can be further optimized in that the ring-like suction pipe arrangements are each placed around the respective friction linings of the two brake linings in the assembled state.

It is structurally advantageous and simple if radially oriented sections of the ring-like suction pipe arrangements are arranged in the assembled state between the brake carrier horns of the brake carrier and the brake disk.

In order to simplify the assembly of the suction arrangement and also the collection of abraded material, it can further be provided that the ring-like suction tube arrangements are each provided with one or more guide and support elements. With regard to a stable seat of the intake arrangement, it can then further advantageously be provided that the guide and support elements each have one or more sections, which are each arranged between the respective back plate of the respective brake pad and the brake carrier. The guide and support sections at least help prevent the brake dust from leaving the area of the disc brake. Their support function refers to the support of the brake pads in the pad shaft, where the suction arrangement is also determined by these elements. The guide and support plates also create a unit that can be replaced when changing the pads. The guide and support plates therefore also serve to reduce/prevent corrosion caused by friction between the carrier horn and the pad backing plate. This prevents a layer of corrosion from forming between the carrier horn and the pad backing plate (particularly due to the few brake applications due to e-mobility) that can lead to pad jamming.

It can then further be expediently provided that the cover has a suction connection as an interface for connecting a suction and separating device external to the disc brake and if the cover also has a connecting tube element connecting the two suction pipe arrangements and the suction connection.

According to a further embodiment, it can optionally be provided that the suction tube arrangements arranged on the two brake pads have one or more suction openings. It can then be advantageous if the suction tube arrangements arranged on the two brake pads each have the suction openings in the direction facing the brake disc and/or in the direction facing away from the brake disc.

In addition, it can be provided that fastening means, in particular fastening clips, are provided with which the suction tube arrangement is fastened to the carrier. The intake manifold arrangement is ideally connected to the cover plate in such a way that this connection is free of leakage (e.g. welded).

According to claim 16, the invention also creates a suction device for sucking off abrasion produced during braking, for a disc brake, in particular for a disc brake according to one or more of the claims relating thereto, wherein the suction device has two suction pipe arrangements assigned to the respective brake pads and a cover connecting the suction pipe arrangements to at least partially cover the brake disc.

This suction arrangement, which can be connected to a suction system arranged outside of the disc brake, in particular a suction and separation system with a fan, or is in operation, enables a large proportion of the abrasion produced during braking to be suctioned off with simple design means.

In order to absorb the abrasion as much as possible, a further development can provide that the two suction pipe arrangements are ring-like in the form of a ring that is completely closed or essentially circumferential, with the ring-like suction pipe arrangements being orientable essentially parallel to the friction surfaces of the brake disc when installed.

The suction arrangement is preferably designed to be exchangeable on the disc brake, so that it can be exchanged for a new, unpolluted suction arrangement after it has been used for a long time. It is then advantageous if at least the cover and the two ring-like suction tube arrangements form a pre-assembled, exchangeable unit of the disc brake, which can also be exchanged when the pads are changed, for example.

Further advantageous developments of the invention are characterized in the remaining dependent claims.

• 1 in a) und b) eine erste erfindungsgemäße Scheibenbremse in zwei verschiedenen perspektivischen Ansichten;
• 2 in a) eine perspektivische Ansicht einer Anordnung mit einem Bremsträger und mit einem Abdeckelement einer Absauganordnung der Scheibenbremse aus 1a) und b); in b) eine weitere perspektivische Ansicht einer Anordnung mit einer Bremsscheibe, einem Bremsträger und Bremsbelägen der Scheibenbremse aus 1a); in c) eine perspektivische Ansicht einer Anordnung mit einer Bremsscheibe, Bremsbelägen und einer Absauganordnung ohne Abdeckung der Scheibenbremse aus 1a) und b); und in d) die Anordnung aus c) ohne die beiden Bremsbeläge;
• 3 in a) und b) zwei verschiedene perspektivische Ansicht einer Absauganordnung der Scheibenbremse aus 1 a) und b); in c) eine Sprengansicht der Absauganordnung aus a) und b); und in d) die Absauganordnung aus a) ohne Abdeckung;
• 4 in a) und b) perspektivische Ansichten einer Anordnung der Absauganordnung aus a) und b) mit Bremsbelägen, dabei in a) mit und in b) ohne Abdeckung;
• 5 eine zweite erfindungsgemäße Scheibenbremse in einer perspektivischen Ansicht;
• 6 eine Absauganordnung der Scheibenbremse aus 5).

An embodiment of the invention is described below with reference to the accompanying drawings. Features of this exemplary embodiment can also be used individually or jointly in other exemplary embodiments of the invention that are not shown. The invention is not limited to this exemplary embodiment, but within the scope of the claims it can also be implemented differently than shown and in particular also in an equivalent manner. Show it:

• 1 in a) and b) a first disc brake according to the invention in two different perspective views;
• 2 in a) a perspective view of an arrangement with a brake carrier and with a cover element of a suction arrangement of the disc brake 1a) and b); in b) another perspective view of an arrangement with a brake disc, a brake carrier and brake pads of the disc brake 1a) ; in c) a perspective view of an arrangement with a brake disk, brake pads and a suction arrangement without covering the disk brake 1a) and b); and in d) the arrangement from c) without the two brake linings;
• 3 in a) and b) two different perspective views of a suction arrangement of the disc brake 1 a) and b); in c) an exploded view of the suction arrangement from a) and b); and in d) the suction arrangement from a) without a cover;
• 4 in a) and b) perspective views of an arrangement of the suction arrangement from a) and b) with brake pads, in a) with and in b) without a cover;
• 5 a second disc brake according to the invention in a perspective view;
• 6 a suction arrangement of the disc brake 5 ).

In the 1 and 5 a disc brake is shown in each case, with a ring-like brake disc 1 with two outer friction ring surfaces 2 overlapping, here frame-like brake caliper 3.

The brake caliper 3 is movably arranged here, in particular displaceably on a brake carrier 4, which can be fastened to a leg of a vehicle axle (not shown here). The brake carrier 4 is optional. Within the scope of the invention, the brake caliper 3 can be designed, for example, as a pivoting caliper, a sliding caliper or a fixed caliper (without a brake carrier).

In the brake caliper 3 and, if necessary, in the brake carrier 4, brake pads 51, 52 are arranged on both sides of the brake disc 1. These brake pads each have a backing plate 511, 521 and a friction lining 512, 522 ( 3 , 4 ).

The brake caliper 3 here has a central opening 6 above the brake disc 1, through which the brake pads 51, 52 can be installed and removed, in particular in order to exchange them when the pads are changed.

The brake carrier 4 can be configured on one side or preferably like a frame. In the latter case, it surrounds the upper edge of the brake disc like a frame. The brake carrier 4 carries the brake caliper 3. Here the brake caliper 3 is preferably arranged on the brake carrier 4 in a displaceable manner. In the case of a frame-like design, the brake carrier 4 can have a lining shaft 41, 42 for brake linings 51, 52 on both sides of the brake disc. These pad shafts 41, 42 are in the circumferential direction of brake carrier horns 411, 412; 421, 422 and bounded at the bottom by a strut 413, 423. On the strut 413, 423 and the brake carrier horns 411, 412; 421, 422 are each formed support surfaces. The brake carrier 4 can be attached to the vehicle in an axle area on a vehicle ( 1a , 1b ; 2a , 2 B) .

Here the brake pads 51 , 52 are inserted into the pad shafts 41 , 42 in the brake carrier 4 on both sides of the brake disc 1 . The brake pads 51, 52 are inserted here on both sides of the brake disc 1 in a corresponding manner in the brake pad shafts 41, 42.

The brake disc 1 has an axis of rotation D. This is aligned parallel to an X-axis in a Cartesian coordinate system. In contrast, the friction ring surfaces 2 of the ring-shaped brake disc 1 extend parallel to or in a Y/Z plane. The Y-direction is tangential to the circumferential direction (see 2a) .

The brake pads 51, 52 are held directly or indirectly via a spring 513, 523 in the pad shafts 41, 42 of the brake carrier 4 with the aid of a hold-down bracket 8, which extends across the opening 6 of the brake caliper 3 ( 1a) .

The brake linings 51, 52 are each with their friction lining 512, 522 on both sides of the friction ring surfaces 2 ( 1a, b ) of the preferably internally ventilated brake disc 1 can be pressed. For this purpose, an actuator (not shown here) is assigned to the disk brake. This can be an electric motor or a pneumatic or hydraulic and/or spring actuator. This actuator can act on one or both friction linings 51, 52 via an application mechanism—here inside the brake caliper 3—in order to press them against the brake disc 1 . In a sliding caliper brake, for example, one of the two brake pads 51, 52 is pressed against the brake disc 1, while the other of the two brake pads 51, 52 with the brake caliper 3 is pulled against the other side of the brake disc 1. The clamping mechanism also includes an adjustment device for adjusting the clearance, which changes during operation as a result of pad and disc wear.

When braking, the existing clearance between the braking or the respective gap between the brake pads 51, 52 and the Brake disc 1 overcome. As a result of the resulting friction, abrasion occurs on the friction linings 51, 52 and also on the brake disk 1 during braking.

This abrasion is sucked off. In this way, this disc brake also meets the requirements for environmental protection in terms of abrasion.

For this purpose, a suction device 7 is formed on the disc brake.

This suction arrangement 7 preferably has a cover 71 and a suction pipe arrangement 721, 722 ( 2a , 2 B , 2c , 2d ). The cover 71 and the two intake manifold assemblies 721, 722 can be assembled into a preassembled unit, for example welded together, which can be assembled as a whole during initial assembly or when changing pads and which can also be dismantled as a whole, for example when changing pads, in order to exchange them for a exchange new, unpolluted ones.

The suction tube arrangements 721, 722 form suction rings, preferably circumferentially closed and each running essentially in one plane, the ring contour of which can be modeled approximately on the outer contour of the brake linings 51, 52, in particular the friction linings 512, 522, but can be somewhat larger than this , so that the friction linings can swap through them. In the installed state, the ring-like intake manifold arrangements are oriented essentially parallel to the friction surfaces 2 of the brake disc 1 (see Fig 2d and 3a , 3b , 3c , 3d ; 4a) .

The suction tube arrangements 721, 722 can preferably each be inserted or also inserted axially in the region of a respective gap S1, S2 between the respective brake lining or the respective friction lining 511, 521 and the respective friction ring surfaces 2. They can advantageously be dimensioned in such a way that when braking, the friction linings 512, 522 can be moved axially through them. During braking, the axial extension of the gaps S1, S2 becomes zero in each case, so that braking begins, which causes abrasion.

The suction pipe assemblies 721, 722 can have one or more suction openings 7211, 7221 (see FIG 3c ). The suction openings 7211, 7221 can be distributed directly on the outer circumference of the suction pipe arrangements forming the suction rings. In addition, they can preferably be oriented in the direction of the brake disk 1 in the assembled state. According to a preferred embodiment, the suction openings 7211, 7221 can be designed as windows in the wall of the suction rings.

As in 3a As can be seen, provision can also be made for the respective intake manifold arrangements 721, 722 to be provided with one or more fastening means, in particular one or more fastening clips 7213, 7223, with which they are fixed to the slide brake and in particular to the brake carrier 4 . This is because the brake carrier 4 is particularly well suited to attaching the intake manifold arrangements to the disk brake without impairing its operating performance.

At least the area between the four carrier horns 411, 412, 421, 422 is essentially covered by a cover 71 when the suction device 7 is in the assembled state-ie more than 70%, in particular more than 90%. The cover 71 is preferably designed as a sheet metal element ( 2a) .

The cover 71 is preferably held down by the hold-down bracket 8, which is above or radially outside (relative to the axis of rotation x of the brake disc 2) of the cover 71 and the brake pads 51, 52. The hold-down bracket 8 and the cover 71 can be connected to one another, e.g. In this way, the cover 71 can be removed in order to be able to change the brake pads 51, 52.

The cover 71 has at least one opening or window that passes through the cover. The window can be provided with an exhaust port 712 . A connection element such as a connection pipe of a suction and preferably separating system configured externally to the disk brake can be connected to this suction connection 712 (not shown).

In addition, the vehicle that is equipped with the disc brake is provided with at least one suction and possibly separation system (not shown here), which can have a suction fan or the like, not shown here, with which the abrasion is guided to a dust removal device. This suction and, if necessary, separation system can also have one or more separation and/or filter stages. The exiting abrasion-free air can be discharged into the environment, for example, via a silencer arranged downstream of the suction fan. The abrasion is sucked off and disposed of separately.

The extraction and separation system outside the disc brake on the vehicle can be designed or used for one or more of the disc brakes on the vehicle. An example is on the EP 2 585 730 B1 referenced, which discloses components of such a system.

The abrasion is extracted directly at the point of origin, i.e. on the individual disc brakes of the vehicle in which the disc brake is installed, by means of the extraction arrangement 7 integrated into the disc brake, preferably when changing the pads, which is designed to remove the abrasion relatively directly at the contact surface between the brake disc 1 and the respective friction lining 511, 521.

The cover 71 of the suction arrangement 7 is preferably designed as a cover plate. This can have an elongated, approximately rectangular shape in plan view, which corresponds to the geometry of the surface between the free ends of the carrier horns 411, 412; 421, 422 may correspond.

The cover 71 can be designed as a cover plate. The cover plate is designed in one piece here. However, it can also be designed in several pieces.

The cover 71 may have the suction port 712 and may have a connecting pipe member 713 ( 3a) . This connecting tube element 713 can form a type of T-piece with regard to its fluid flow function. It can then connect the suction port 712 to the two suction tube assemblies 721, 722. Thus, air and particles sucked in through the suction openings 7211, 7221 are sucked out through the suction pipe assemblies 721, 722, the connecting pipe element 713 and the suction port 712 and can thus reach the suction and separation system outside the disc brake, which is connected to the suction ports 712 of the individual disc brakes of the vehicle is connected.

Since the brake pads 51, 52 with their friction materials can dip through the ring-like suction tube arrangements 721, 722, the suction openings can be placed very close to the friction ring surfaces 2 of the brake disk 1, ie very close to the point at which the abrasion occurs.

Substantially radially running portions of the intake manifold arrangements can be close to the place where the abrasion occurs in gaps S1, S2 between the brake carrier horns 411, 412; 421, 422 and the brake disc.

One or more guide and support elements 7311, 7312; 7321, 7322, in particular guide and support plates.

These guide and support elements 7311, 7312; 7321, 7322 can be connected to the suction tube arrangements 721, 722 and/or the cover 71, in particular welded.

The guide and support elements 7311, 7312; 7321, 7322 can be designed as angle plates. Provision can then also be made for these angle plates to grip around corner regions of the brake pads 51, 52 in the assembled state and to rest in the pad shafts of the brake carrier on its support surfaces. The brake pads are then based only on the guide and support elements 7311, 7312; 7321, 7322 onwards.

In this way, the cover 71 and possibly the guide and support elements 7311, 7312; 7321, 7322, the gussets in particular help prevent debris from escaping uncontrolled from the disc brake, which increases the effectiveness of the suction. The guide and support elements 7311, 7312; 7321, 7322 can also form stable intermediate elements for supporting the brake pads 51, 52 in the brake carrier 3. For example, they can be made of steel. In addition, they stabilize the suction tube arrangements 721, 722, which can otherwise be held by the screw 81 on the hold-down bracket 8. As explained at the outset, they can also take on a corrosion protection function.

Since the suction arrangement 7 can also be changed when the pads are changed, this suction of the abraded material is secured in a particularly advantageous manner by elements that are new or cleaned in this respect, even after the pads have been changed.

The respective intake manifold arrangement 721, 722 is preferably designed in such a way that it can/surrounds the respective friction lining 512, 522 of the respective brake lining 51, 52 in a frame-like/ring-like manner in whole or in sections ( 4a , 4b) . The respective suction pipe arrangement 513, 523 of the suction arrangement 7 can each have a contour which is or corresponds to the contour of the peripheral edge around the friction lining 512, 522.

The respective suction pipe arrangement 721, 722 thus preferably runs all the way around the respective friction lining 512, 522 at a distance of a few mm from the friction lining 512, 522. The two ends of the circumferential suction pipe arrangements 721, 722 can then end in the connecting pipe element 713 or be attached to it. In this way the two suction rings are formed. In this way, the brake dust can be extracted and sucked off directly at the point of origin. The respective intake manifold arrangement 721, 722 can be moved right up to or close to the friction surface 2 of the respective friction ring, which faces the brake disc 1.

Tubular elements of the intake arrangement can be plugged in without a gap using a press fit or, if necessary, welded on.

Provision can be made for the suction connection 712 to be designed in the manner of a commercially available hose connection, e.g. in the manner of a plug-in connection or coupling, etc.

In the 5 and 6 The embodiment variant shown shows a further variant and implicitly a manufacturing process for the circumferential suction tube arrangements 721, 722 designed as rings. Here, these can—according to one option together with the cover 71—be made from one or more metal sheets. These can have one or more suction openings 211, 7222, in particular also thin gaps as a suction opening to the contact surface between the brake disc and the brake pad 51, 52, through which the brake dust is suctioned off. The sheet can be integrally formed or there are several sheets provided by means

Connectors can be sealed at the corners (not shown). In this variant, the production is very simple.

Reference List

1

brake disc

2

friction ring surfaces

3

caliper

4

brake carrier

41, 42

pad shafts

411, 412; 421, 422

brake carrier horns

413, 423

strut

51.52

brake pads

511, 521

backplate

512, 522

friction lining

513,523

Feather

6

opening

7

suction arrangement

71

cover

712

suction port

713

connecting pipe element

721, 722

intake manifold assembly

7212,7222

suction openings

7213, 7223

mounting clips

7311, 7312; 7321, 7322

guide and support elements

8th

hold-down bracket

81

screw

S1, S2

gap

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was 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.

Patent Literature Cited

• US 2010/0096226 A1 [0003]
• WO 2008/083884 A1 [0004]
• EP 2585730 B1 [0005, 0045]

Claims (18)

Disc brake, with a brake caliper (3) overlapping a brake disc (1), in which brake linings (51, 52) each provided with a friction lining (512, 522) and a back plate (511, 521) are arranged, each with its friction lining ( 512, 522) can be pressed on both sides of the friction ring surfaces (2) of the brake disc (1), and with a suction device (7) for sucking off abrasion produced during braking, characterized in that the suction device has two suction tube arrangements assigned to the respective brake pads (51, 52). (721, 722) and a cover (71) connecting the suction tube arrangements (711, 7212) for at least partially covering the brake disc (1). disc brake after claim 1 , characterized in that the two intake manifold arrangements (721, 722) are ring-like in the form of a ring that is closed completely or substantially around the circumference, with the ring-like intake manifold arrangements (721, 722) being oriented essentially parallel to the friction surfaces (2) of the brake disc (1) in the assembled state . Disc brake according to one of the preceding claims, characterized in that the ring-like suction tube arrangements (721, 722) are placed around the respective friction linings (512, 522) of the two brake linings (51, 52) in the assembled state. Disc brake according to one of the preceding claims, characterized in that it has a brake carrier (4) which has one or two pad shafts for inserting the brake pads (51, 52). Disc brake according to one of the preceding claims, characterized in that radially aligned sections of the ring-like suction pipe arrangements (721, 722) are arranged between the brake carrier horns (11, 412; 421, 422) of the brake carrier (4) and the brake disc (1) in the assembled state. Disc brake according to one of the preceding claims, characterized in that the ring-like suction tube arrangements (721, 722) are each provided with one or more guide and support elements (7311, 7312; 7321, 7322). Disc brake according to one of the preceding claims, characterized in that the guide and support elements (7311, 7312; 7321, 7322) each have one or more sections which are located between the respective back plate (511, 521) of the respective brake lining ( 51, 52) and the brake carrier (4) is/are arranged. Disc brake according to one of the preceding claims, characterized in that at least the cover (71) and the two ring-like suction tube arrangements (721, 722) form a pre-assembled, exchangeable unit of the disc brake. Disc brake according to one of the preceding claims, characterized in that the cover (71) has a suction connection (712) as an interface for connection to a suction and separating device external to the disc brake. Disc brake according to one of the preceding claims, characterized in that the cover (71) also has at least one connecting pipe element (713) connecting the two suction pipe arrangements (721, 722) and the suction connection (712). Disc brake according to one of the preceding claims, characterized in that the cover (71) is fixed to a hold-down bracket (8). Disc brake according to one of the preceding claims, characterized in that the suction tube arrangements (721, 722) arranged on the two brake pads (51, 52) have one or more suction openings as suction openings. Disc brake according to one of the preceding claims, characterized in that the suction tube arrangements (721, 722) arranged on the two brake pads (51, 52) each have the suction openings at least in the direction towards the brake disc (1). Disc brake according to one of the preceding claims, characterized in that the respective suction pipe arrangements (721, 722) each form a circumferentially closed suction ring. Disc brake according to one of the preceding claims, characterized in that the respective suction tube arrangements (721, 722) are provided with one or more fastening means, in particular one or more fastening clips (7213, 7223), with which they are each attached to the brake carrier (3) are fixed. Extraction arrangement for extracting abrasion produced during braking, for a disc brake, in particular for a disc brake according to one or more of the preceding claims, characterized in that the suction arrangement has two suction pipe arrangements (721, 722) assigned to the respective brake layers (51, 52) and a cover (71) connecting the suction pipe arrangements (711, 7212) for at least partially covering the brake disc (1). suction arrangement Claim 16 , characterized in that the two suction pipe arrangements (721, 722) are ring-like in the form of a ring that is closed completely or essentially around the circumference, the ring-like suction pipe arrangements (721, 722) being orientable essentially parallel to the friction surfaces (2) of the brake disc (1) in the assembled state . suction arrangement Claim 16 or 17 , characterized in that at least the cover (71) and the two ring-like suction tube arrangements (721, 722) form a preassembled, replaceable unit of the disc brake.

Images