Brake carrier for a disc brake

Abstract

A brake carrier (4) for a disc brake (1) of a utility vehicle has a frame-like base with two bridge struts (41), which are oriented parallel to one another and the ends of which are connected to one another via disc-encompassing elements (42), and carrier horns (43) which project from the base at a distance to one another and, together with the respective bridge struts, form lining housings (10, 11) for receiving brake linings, an adapter (6, 7, 8) for fixing a brake dust collector (5) being provided on the lower face, facing away from the lining housings (45), of the base in the region of at least one of the disc-encompassing elements (42). The invention also relates to a disc brake (1).

Description

[0001] 2024PF00172 11.09.2024

[0002] Brake carrier for a disc brake

[0003] DESCRIPTION

[0004] The invention relates to a brake carrier for a disc brake of a commercial vehicle according to the preamble of claim 1.

[0005] The invention further relates to a disc brake for a commercial vehicle according to the preamble of claim 13.

[0006] Types of brake carriers for disc brakes are known in a variety of variants from the prior art, for example from DE 10 2021 126 787 A1.

[0007] Environmental requirements and the resulting changes in legal frameworks will lead to increased demands for the prevention of particulate matter in the future. This necessitates the development of technical solutions for disc brakes for commercial vehicles that are capable of minimizing brake dust, especially the particulate matter component of brake dust, and ideally preventing its emission into the environment.

[0008] Existing technical solutions are largely designed to direct and collect brake dust from the space surrounding the disc brake through a filter, with or without the aid of compressed air. This usually requires restricting the surrounding space by installing cover plates or shields around the wheel brake.

[0009] Such a solution is known, for example, in the aforementioned DE 10 2021 126 787 A1. The solution described there has proven itself in practice.

[0010] It remains fundamentally problematic to capture the brake dust generated during braking using such encapsulations, as the conditions in the wheel well and within a rim, due to the airflow, cause a diffuse turbulence of the brake dust.

[0011] Furthermore, complete encapsulation by cover plates is neither possible nor desirable, since a complete 2024PF00172

[0012] - 2 -

[0013] Encapsulation would lead to undesirable heating of the brake pads or brake disc.

[0014] The object of the present invention is therefore to provide a brake carrier and a disc brake with such a brake carrier which enables the attachment of a brake dust catcher to capture brake dust on a brake carrier in a simple manner.

[0015] The problem is solved by a brake carrier having the features of claim 1 and by a disc brake having the features of claim 13.

[0016] The brake carrier according to the invention for a disc brake of a commercial vehicle has a frame-like base with two bridge struts aligned parallel to each other, which are connected to each other at their ends via disc grips.

[0017] The brake carrier also features support horns that project from the base at intervals. Together with the bridge struts, these support horns form recesses for the brake linings.

[0018] On the underside of the base, facing away from the pad slots, an adapter for fixing a brake dust collector is arranged in the area of ​​at least one of the disc grips.

[0019] Such an adapter, positioned at the base, makes it easy to fix such a brake dust collector in place.

[0020] Advantageous embodiments of the invention are the subject of the dependent claims.

[0021] According to an advantageous embodiment, the adapter is integrated into the underside of the base.

[0022] This allows the brake dust collector to be mounted directly under the brake carrier, so that the brake dust collector can be easily screwed, clamped, or both screwed and clamped onto the adapter integrated into the brake carrier. 2024PF00172

[0023] - 3 -

[0024] According to an alternative design variant, the adapter has a U-shaped curved base body oriented perpendicular to the underside of the base, which is attached to the brake carrier.

[0025] In an advantageous further development, connection areas extend from the side legs of the base body for fixing the adapter to one of the disc grips.

[0026] In a preferred embodiment, these connection areas are designed as tabs that rest against the underside of the disc's outer casing. The tabs have holes for screwing the adapter to the disc's outer casing.

[0027] Alternatively or additionally, the tabs are designed as clamping tabs that partially encircle the disc.

[0028] The clamping tabs or the holes in the tabs make it easy to screw and / or clamp the adapter in the area of ​​the disc's circumference on the brake carrier.

[0029] According to an advantageous further development, the ends of the tabs designed as clamping lugs are formed as clamping lugs projecting into clamping grooves provided for this purpose in an upper surface facing the support horns or in a side surface of the disc circumference.

[0030] The provision of such clamping lugs allows for easy pre-fixation of the adapter to the brake carrier.

[0031] According to an alternative design variant, tabs are attached to the side legs of the base body, the free ends of which are bent in a hook-like manner and grip respective bearing surfaces on a rear side of the respective support horns facing away from the covering shafts.

[0032] This design variant also allows for easy fixing of such an adapter in the area of ​​the disc's circumference on the brake carrier.

[0033] In an advantageous further development of this design variant, the length of the tabs is determined by a connection on the side legs of the base body 2024PF00172

[0034] - 4 - arranged adjustment mechanism for pre-tensioning the adapter on the brake carrier.

[0035] According to another alternative design variant, tabs are formed on the side legs of the base body, the free ends of which are bent over in such a way that they rest on respective bearing surfaces on a rear side of the respective support horns facing away from the covering shafts and are screwed to the support horns.

[0036] An adapter designed in this way can also be easily attached to the brake carrier.

[0037] In an advantageous embodiment, the tabs are formed in a transition area to the respective side leg, lying against the underside of the disc's circumference, wherein at least one of the transition areas is provided with a recess that encompasses a protrusion formed on the underside of the disc's circumference.

[0038] This allows for easy alignment of the adapter in the area of ​​the disc's circumference on the brake carrier.

[0039] According to one advantageous embodiment, the adapters are formed in one piece from a sheet of metal.

[0040] According to an alternative design variant, the adapter is composed of several pieces of sheet metal.

[0041] The disc brake according to the invention for a commercial vehicle comprises a brake disc, a frame-like brake carrier extending over a portion of the brake disc, brake pads inserted into the pad slots of the brake carrier, and a brake caliper slidably arranged on the brake carrier with a pad slot opening through which the brake pads can be inserted and removed.

[0042] The brake carrier is designed as described above. The brake dust collector is attached to the adapter. 2024PF00172

[0043] - 5 -

[0044] Preferred embodiments of the invention are explained in more detail below with reference to the accompanying drawings.

[0045] They show:

[0046] Figure 1 shows a schematic isometric view of an embodiment of a disc brake according to the invention.

[0047] Figure 2 shows a schematic isometric representation of a brake carrier of the disc brake according to Figure 1 with a variant of an adapter for fixing a brake dust collector arranged on it.

[0048] Figures 3 and 4 show further illustrations of the brake carrier with adapter according to Figure 2 from two other perspectives.

[0049] Figures 5 and 6 are schematic isometric views of the adapter variant shown in Figures 2 to 4.

[0050] Figures 7 and 8 show further illustrations of the brake carrier with an alternative design variant of an adapter attached to it, from two different perspectives.

[0051] Figure 9 is a schematic isometric view of the embodiment of the adapter shown in Figures 7 and 8.

[0052] Figure 10 shows a schematic isometric representation of a brake carrier of the disc brake according to Figure 1 with an adapter integrated into the brake carrier with a brake dust collector fixed to it, and

[0053] Figures 11 and 12 show further illustrations of the brake carrier with another alternative version of an adapter attached to it, from two different perspectives. 2024PF00172

[0054] - 6 - In the following figure descriptions, terms such as top, bottom, left, right, front, rear, etc., refer exclusively to the exemplary representation and position of the disc brake, brake carrier, bridge struts, disc grips, adapter, and the like as chosen in the respective figures. These terms are not to be understood restrictively; that is, these references may change due to different working positions, mirror-symmetrical design, or the like.

[0055] In Figure 1, reference numeral 1 denotes a total embodiment of a disc brake according to the invention.

[0056] The disc brake 1 has a brake disc 2 and a frame-like brake carrier 4 that overlaps a section of the brake disc 2.

[0057] As can be clearly seen in Figures 2 and 3, the brake carrier 4 has lining slots 10, 11 into which brake linings (not shown) can be inserted.

[0058] As further shown in Figure 1, a brake caliper 3 is slidably arranged on the brake carrier 4, with a pad shaft opening 31 through which brake pads can be inserted and removed.

[0059] The pad shaft opening 31 is secured by a pad retaining bracket 7, wherein the pad retaining bracket 7 is detachably attached to the brake caliper 3 in a manner known per se.

[0060] As shown, for example, in Figures 2 to 4, the brake carrier 4 generally consists of a frame-like base with two parallel bridge struts 41, which are connected to each other at their ends via disc grips 42, and support horns 43 projecting from the base at a distance from each other, which together with the respective bridge struts form the lining channels 10, 11 for receiving brake linings.

[0061] The pad recesses 10, 11 are bounded circumferentially by the inner surfaces of the support horns 43 of the brake caliper 3, which project from the base towards the pad recess opening 31. 2024PF00172

[0062] - 7 -

[0063] The disc grips 43 overlap the brake disc 2 in axial direction A, as can be clearly seen in Figure 1, where A marks the axis of rotation of the brake disc 2.

[0064] As further shown in Figure 1, an adapter 6 for fixing a brake dust collector 5 is arranged on an underside of the base of the brake carrier 4 facing away from the pad shafts 10, 11 in the area of ​​at least one of the disc wraps 42.

[0065] The brake dust collector 5, which is also U-shaped, surrounds a further section of the brake disc 2. The U-shape follows approximately the cross-sectional contour of the disc surround 42.

[0066] Figures 1 to 6 show a first embodiment of an adapter 6 for fixing the brake dust collector 5.

[0067] Figures 7 to 9 show a second version of adapter 7.

[0068] Figures 11 and 12 show a third variant of an adapter 8.

[0069] In the embodiment shown in Figure 10, the adapter is integrated into the base on the underside, so that in this embodiment the brake dust collector 5 is attached to the adapter integrated into the brake carrier 4.

[0070] All adapters 6, 7, 8 shown in Figures 1 to 9, 11 and 12 have in common a U-shaped curved base body 61, 71, 81 which is oriented perpendicular to a base of the brake carrier 4 and is attached to the brake carrier 4.

[0071] In the embodiment of the adapter 6 shown in Figures 1 to 6, connection areas for fixing the adapter 6 to one of the disc grips 42 extend from side legs 62, 63 of the base body 61.

[0072] These connection areas are, as shown in Figures 2 to 6, tabs 65, 67 abutting the underside of the disc circumference 42 with in 2024PF00172

[0073] - 8 - these provided bores 68 for screwing the adapter 6 to the disc circumference 42 are formed.

[0074] Figure 2 shows the screws 12, which are screwed through the bores 68 of the tabs 65, 67 into threaded bores provided for this purpose in the brake carrier 4.

[0075] As further shown in Figure 2, one of the threaded bores in the brake carrier 4 is provided, for example, in a screw receptacle 47 on a clamping side of the disc grip 42 of the brake carrier 4.

[0076] The second threaded bore is provided in an area of ​​the brake carrier 4 on the reaction side of the brake carrier 4 outside the carrier horn 43.

[0077] In the embodiment shown here, the tab 65 is additionally designed as a clamping tab that partially encompasses the disc circumference 42.

[0078] A further tab 66, designed as a clamping tab, is held in a recess 46 on the clamping side of the brake carrier 4 on the outer surface of the brake carrier 4.

[0079] The ends of the tabs 65, 66, which are designed as clamping tabs, are formed as clamping lugs projecting into clamping grooves 45, 46 provided for this purpose in an upper surface facing the support horns 43 or in a side surface of the disc circumference 42, as shown in Figures 3 and 4.

[0080] In the embodiment of the adapter 7 shown in Figures 7 to 9, tabs 75 are attached to side legs 72, 73 of the base body 71 of the adapter 7, the free ends 76 of which are bent in a hook-like manner.

[0081] These free ends 76 grip the respective contact surfaces 431 on the back of the respective support horns 43, facing away from the pad shafts 10, 11, to fix the adapter 7 to the brake carrier 4.

[0082] As further shown in Figures 8 and 9, at the transition between the side legs 72, 73 of the base body 71 and the tabs 75, a 2024PF00172

[0083] - 9 -

[0084] Adjustment mechanism 77 is provided, with which the adapter 7 can be pre-tensioned under the brake carrier 4.

[0085] In the further embodiment of the adapter 8 shown in Figures 11 and 12, tabs 85 are formed on side legs 82, 83 of the base body 81, the free ends 86 of which are bent in such a way that they rest on respective bearing surfaces 431 on a rear side of respective support horns 43 facing away from the covering shafts 10, 11 and are screwed to the support horns 43.

[0086] As further shown in Figure 12, the tabs 85 are preferably formed in a transition area 87 to the respective side leg 82, 83, lying against the underside of the disc circumferential 42.

[0087] At least one of the transition areas 87 is provided with a recess 88 which engages a protrusion 49 formed on the underside of the disc grip 42, which further facilitates the alignment of the adapter 8 on the brake carrier 4.

[0088] All of the embodiments of adapters 6, 7, 8 shown in the figures are preferably made of sheet metal on the outside.

[0089] The adapters 6, 8 shown in Figures 1 to 6 and 11 to 12 are preferably formed in one piece from a sheet of metal.

[0090] The adapter 7 shown in Figures 7 and 8 is preferably composed of several parts made of sheet metal.

[0091] 2024PF00172

[0092] - 10 -

[0093] Reference symbol list

[0094] 1 disc brake

[0095] 2 brake discs

[0096] 3 brake calipers

[0097] 31. Covering shaft opening

[0098] 4 brake carriers

[0099] 41 Bridge strut

[0100] 42 disc circumference

[0101] 43 Carrier horn

[0102] 431st edition

[0103] 44 Underside

[0104] 45 Top

[0105] 46 outdoor area

[0106] 47 screw mount

[0107] 48 Exclusion

[0108] 49 Survey

[0109] 5 brake dust collectors

[0110] 6 adapters

[0111] 61 Basic body

[0112] 62 Side thigh

[0113] 63 Side thigh

[0114] 64 Intermediate piece

[0115] 65 tab

[0116] 66 tab

[0117] 67 tab

[0118] 68 bore

[0119] 7 adapters

[0120] 71 Basic body

[0121] 72 Side thighs

[0122] 73 Side thigh

[0123] 74 Intermediate piece

[0124] 75 Tab 2024PF00172

[0125] - 11 -

[0126] 76 free ending

[0127] 77 Adjustment mechanism

[0128] 8 adapters

[0129] 81 Basic body

[0130] 82 Side thigh

[0131] 83 Side thigh

[0132] 84 Intermediate piece

[0133] 85 tab

[0134] 86 free ending

[0135] 87 Transition area

[0136] 88 Exclusion

[0137] 9 pad retaining clips

[0138] 10 Cover shaft

[0139] 11 Cover shaft

[0140] 12 screws

[0141] A axis of rotation

Claims

2024PF00172 - 12 - Claims 1. Brake carrier (4) for a disc brake (1) of a commercial vehicle, comprising a frame-like base with two parallel bridge struts (41) which are connected to each other at their ends via disc wraps (42), and support horns (43) projecting from the base at a distance from each other, which together with the respective bridge struts form pad recesses (10, 11) for receiving brake pads, characterized in that an adapter (6, 7, 8) for fixing a brake dust collector (5) is arranged on an underside of the base facing away from the pad recesses (10, 11) in the area of ​​at least one of the disc wraps (42).

2. Brake carrier (4) according to claim 1 , characterized in that the adapter is integrated into the underside of the base.

3. Brake carrier (4) according to claim 1 , characterized in that the adapter (6, 7, 8) has a U-shaped curved base body (61 , 71 , 81 ) oriented perpendicular to a bottom surface of the base, which is attached to the brake carrier (4).

4. Brake carrier (4) according to claim 3, characterized in that connection areas for fixing the adapter (6) to one of the disc wraps (42) extend from side legs (62, 63) of the base body (61).

5. Brake carrier (4) according to claim 4, characterized in that the connection areas are designed as tabs (65, 67) abutting the underside of the disc housing (42) with bores (68) provided in them for screwing the adapter (6) to the disc housing (42) and / or the tabs (65, 66) are designed as clamping tabs partially encompassing the disc housing (42).

6. Brake carrier (4) according to claim 5, characterized in that free ends of the tabs (65, 66) designed as clamping tabs are inserted into clamping grooves (45, 46) provided for this purpose in a manner corresponding to the carrier horns (43) 2024PF00172 - 13 - clamping lugs are formed on the upper surface facing the disc or on a side surface of the disc circumference (42).

7. Brake carrier (4) according to claim 1 or 3, characterized in that tabs (75) are attached to side legs (72, 73) of the base body (71), the free ends (76) of which are bent in a hook-like manner and engage respective bearing surfaces (431) on a rear side of respective carrier horns (43) facing away from the lining channels (10, 11).

8. Brake carrier (4) according to claim 7, characterized in that the length of the tabs (75) is adjustable via an adjusting mechanism (77) arranged on the side legs (72, 73) of the base body (71) for pre-tensioning the adapter (7) on the brake carrier (4).

9. Brake carrier (4) according to claim 1 or 3, characterized in that tabs (85) are formed on side legs (82, 83) of the base body (81), the free ends (86) of which are bent in such a way that they are screwed onto the respective bearing surfaces (431) on a rear side of the respective carrier horns (43) facing away from the lining channels (10, 11).

10. Brake carrier (4) according to claim 9, characterized in that the tabs (85) are formed in a transition area (87) to the respective side leg (82, 83) to abut the underside of the disc surround (42), wherein at least one of the transition areas (87) is provided with a recess (88) which encompasses a protrusion (49) formed on the underside of the disc surround (42).

11. Brake carrier (4) according to one of the preceding claims 3 to 10, characterized in that the adapter (6, 8) is formed in one piece from a metal sheet.

12. Brake carrier (4) according to one of the preceding claims 3 to 10, characterized in that the adapter (7) is composed of several metal sheet pieces. 2024PF00172 - 14 - 13. Disc brake (1) for a commercial vehicle, comprising - one brake disc (2), - a frame-like brake carrier (4) extending over a section of the brake disc (2), - brake pads inserted into pad recesses (10, 11) of the brake carrier (4), - a brake caliper (3) slidably arranged on the brake carrier (4) with a pad shaft opening (31) through which the brake pads can be inserted and removed, characterized in that - the brake carrier (4) is designed according to one of the preceding claims, - wherein the brake dust collector (5) is attached to the adapter (6, 7, 8).

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