Brake pad arrangement for a vehicle disc brake with guide structure for a pad spring

Abstract

Brake pad arrangement (1) for a vehicle disc brake, comprising: - at least one brake pad (4) which, when braking, can be displaced from a starting position towards a brake disc along a displacement axis (D), - at least one pad spring (13) designed to move the brake pad (4) back to its starting position after braking; wherein the brake pad (4) has at least one guide structure (52) and the pad spring (13) has at least one guided section (54), wherein the guide structure (52) is configured to guide a movement of the guided section (54) during a displacement of the brake pad (4), wherein the guide structure (52) has at least a first section and a second section which run at an angle to each other and / or whose curvatures differ from each other, wherein the extent and / or direction of the movement of the guided section (54) varies during the brake pad displacement, wherein the lining spring (13) exhibits a linear deformation behavior and / or a linear stiffness characteristic, the restoring force of the pad spring (13) changes linearly depending on the displacement of the brake pad (4).

Description

[0001] The invention relates to a brake pad arrangement for a vehicle disc brake (e.g. for a car, a bus or a truck).

[0002] In conventional disc brakes for motor vehicles, a caliper assembly supports the brake pads, which are located on both sides of a brake disc. The caliper assembly has guide recesses that accommodate guide projections located on opposite outer surfaces of at least one of the brake pads. In this way, the brake pad is guided by the caliper assembly as it is pressed against and lifted from the brake disc.

[0003] It is known to arrange so-called pad springs between the brake caliper assembly and at least one of the brake pads, in particular between a guide recess and a guide projection. A pad spring can be a pad clamp that has a spring function, in particular a return function, to return a brake pad to its original position after braking. In this way, the brake pads can be reliably lifted from the brake disc after braking, which prevents residual drag torque.

[0004] The pad springs can also help reduce friction, allowing the brake pad to move smoothly during and after braking. Furthermore, the pad springs can help absorb vibrations, preventing them from being fully transmitted from the brake pad to the caliper assembly.

[0005] The brake pad springs are often attached to the brake caliper assembly. They may, for example, be clamped to the brake caliper assembly. Accordingly, the brake pad springs generally have a shape that corresponds to an outer surface of an adjacent part of the brake caliper assembly. An example of a brake pad spring according to the prior art can be found in DE 10 2015 223 555 A1.

[0006] US 2017 / 0248182 A1 teaches a brake caliper comprising: a housing containing a piston capable of linear movement; a carrier connected to the housing and mounted on a vehicle, such that a vehicle disc is positioned within it; a pair of brake pad plates brought into close contact with the disc by the linear movement of the piston; and a pair of guides connecting the brake pad plates and the carrier. Each brake pad plate may have a sliding groove on both sides, and the guides may each contain elastic elements capable of sliding along the sliding grooves.

[0007] DE 20 2021 100 674 U1 discloses a brake device for a vehicle, comprising: a pair of pin elements installed in a brake caliper body such that they are spaced apart from each other; a first brake pad movably connected to the pair of pin elements and in contact with a brake disc; a second brake pad connected to the pair of pin elements in such a way that it is spaced apart from the first brake pad and in contact with the brake disc; a pressure element installed in the brake caliper body and designed to press against the first brake pad in order to bring the first and second brake pads into contact with the brake disc;and a lining liner installed on the pair of pin elements and designed to provide an elastic restoring force for the first and second brake linings, so that the original state of the first and second brake linings is restored when the pressure on the pressing part is released.

[0008] US 2019 / 0219113 A1 teaches a brake caliper retraction system comprising a torsion bracket and a torsion arm having an angular relationship to the torsion bracket, wherein the torsion arm responds resiliently to at least one movement of a brake pad and the torsion bracket operates such that when a brake pad moves by a first distance, the torsion arm responds resiliently and transmits an action to the brake pad through contact between the torsion arm and the brake pad, wherein the transmitted action is sufficient to retract the brake pad positively when the brake system is released, wherein the torsion bracket further operates such that when a brake pad moves beyond the first distance, the angular relationship between the torsion arm and the torsion bracket is adjusted in response to the further movement.

[0009] WO 2022 / 153235 A1 teaches a band spring arranged over a brake disc to exert an elastic effect on a brake pad and to push the brake pad away from the brake disc. The brake pad has a backing plate that carries friction material and has a plate edge that forms at least a pressure section and a distinguishable stop section.The band spring has a band-shaped spring body and at least three distinct sections: a first coupling section that connects the band spring to a brake caliper housing; a second pressure section that exerts an elastic effect on the at least one pressure section; and a third contact section that rests against the stop section and provides support that prevents the second pressure section from sliding when the band spring is subjected to external forces, thereby preventing the band spring from becoming permanently coupled to the brake pad and avoiding bilateral compression in the second pressure section and third contact section between the band spring and the brake pad.

[0010] Besides ensuring reliable contact and attachment of the brake pad springs to the brake caliper assembly, a common design goal of existing brake pad springs is to guarantee reliable spring function over a long service life. As mentioned earlier, the spring function prevents residual drag torque, which reduces fuel consumption and the unnecessary generation of brake dust. It has been found that this is not always achieved with existing designs. Furthermore, existing brake pad springs can generate significant levels of vibration and noise.

[0011] One objective of the invention is to improve the reliability of lining springs with regard to their restoring function and preferably also with regard to noise reduction.

[0012] This problem is solved by the subject matter according to the attached independent claim. Advantageous embodiments are disclosed in the present description, in the figures, and in the dependent claims.

[0013] Accordingly, a brake pad arrangement for a vehicle disc brake is proposed, wherein the brake pad arrangement comprises: - at least one brake pad which, when braking, can be displaced along a displacement axis from a starting position towards a brake disc (and in particular into contact with it), - at least one brake pad spring designed to return the brake to its starting position after braking; wherein the brake pad has at least one guide structure and the pad spring has at least one guided section, wherein the guide structure is configured to guide a movement of the guided section (and thus at least a part of the pad spring) during a displacement of the brake pad, wherein the guide structure has at least a first section and a second section which run at an angle to each other and / or whose curvatures differ from each other, where the extent and / or direction of the movement of the guided section varies during brake pad displacement, wherein the lining spring exhibits a linear deformation behavior and / or a linear stiffness characteristic, the restoring force of the pad spring changes linearly depending on the displacement of the brake pad.

[0014] The guide structure helps to define and maintain a desired relative movement between the pad spring and the brake pad. This can help to limit vibrations, noise, and general malfunctions. It has been found that undefined contact and relative movement between the brake pad and pad spring can cause vibrations and noise. This is currently overcome by the guide structure, which defines and maintains the contact and relative movement.

[0015] In particular, the guide structure can provide a defined relative movement, which leads to a defined deformation behavior and thus to defined stiffness properties of the lining spring.

[0016] The presented solution can therefore generally reduce the risk of the brake pad spring failing to reliably perform its return function, or in other words, its retraction function. This reduces the risk of residual drag torque. This improves fuel efficiency and limits brake dust emissions.

[0017] According to known embodiments, the brake pad assembly (in particular two brake pad assemblies, one on each side of a brake disc) can be slidably mounted in a brake caliper assembly. The invention also relates to an assembly with at least one brake pad assembly according to one of the disclosed aspects and a brake caliper assembly that mounts and / or guides the brake pad assembly.

[0018] The brake caliper assembly may comprise a main caliper or a caliper housing. The caliper housing may be movable and / or include a bridge section extending from one side of a brake disc to the other. The brake caliper assembly may also include a caliper bracket (or pad carrier) designed to slide relative to the caliper housing. The pad carrier may be fixed relative to a brake disc that is to be braked by the pad assembly. The pad carrier may accommodate and / or support at least one pad assembly.

[0019] In particular, the brake caliper assembly (e.g., the brake pad carrier) can have guide recesses in which a guide projection of at least one brake pad is received. The pad spring can be arranged between the brake caliper assembly and the brake pad and / or extend between the brake caliper assembly and the brake pad or from the brake caliper assembly to the brake pad. It can also be received in the guide recess of the brake caliper assembly. For example, at least part of it can be arranged between the guide projection and the guide recess. The brake pad can be supported by the pad spring. It can be supported by the pad spring relative to the brake caliper assembly.

[0020] In general, there can be two pad springs per brake pad, e.g. on each outer (e.g. axially outer) side and, in particular, one on each guide projection of the brake pad.

[0021] In one example, the brake pad has a longitudinal axis and two axially outer edge regions. These edge regions can form opposite edges of the brake pad. They can extend at an angle to the longitudinal axis and / or at least partially along or parallel to an adjacent side wall of the brake caliper assembly. The side wall can include a guide recess, as disclosed herein.

[0022] The brake pad may also have an upper and a lower edge region. These can connect the axially outer edge regions. The upper and lower edge regions can extend along the longitudinal axis. In particular, they can extend at a smaller angle (which can even be zero) relative to the longitudinal axis than the axially outer edge regions. The upper edge regions can be located closer to a bridge region of the brake caliper assembly, while the lower edge region can be located closer to an axis of rotation of a brake disc that is braked by the brake pad.

[0023] The bridge section of the brake caliper assembly can be designed according to known examples and, for instance, connect a so-called piston side and finger side of the brake caliper assembly (in particular its movable caliper housing). The bridge section can extend from one side of the brake disc to the other, in particular to support the brake pads on both sides of the brake disc.

[0024] The various edge regions of the brake pad can be connected at corners. They can define a preferably closed circumference of the brake pad. The corner regions can define areas where the circumferential direction of the brake pad changes, for example, by more than 20% or more than 60%.

[0025] At least one section of the pad spring preferably extends along one of the axially outer edge regions. In one example, two pad spring clips are provided on both (e.g., left and right) axially outer edge regions of the brake pad. These pad springs can be designed and / or arranged symmetrically to each other. They can be referred to as rear or front pad springs with respect to the direction of rotation of the brake disc when driving forward. In a pair of brake pads, the respective rear pad springs of the brake pads can be connected to each other and / or the respective front pad springs can be connected to each other, e.g., by being formed integrally from a common sheet metal section.

[0026] Accordingly, a typical disc brake with two brake pads can have four separate pad springs (two per brake pad).

[0027] Optionally, the pad springs do not extend along the upper or lower edge of the brake pad.

[0028] The brake pad can have a backing plate that, for example, comprises or is made of a metallic material. A friction lining can be arranged on the front of the backing plate and designed to contact the brake disc during braking. Optionally, the brake pad's guide structure can also be enclosed by the backing plate.

[0029] The pad spring can have at least one section facing a front or rear surface of the backing plate, preferably the front. This section can be or comprise the guided section and / or this section can be or comprise a tab. The tab can be a section bent from (or relative to) another section of the pad spring. The other section can be, for example, a main part of the pad spring, in particular a main part that is received in a guide recess of the brake caliper and / or extends along an axially outer side of the brake pad. By bending the tab, a solid-body joint (or a solid-body joint) can be defined. The tab can pivot about the solid-body joint, generating an elastic restoring force that pushes the brake pad back to its initial position.

[0030] It should be noted that the present solution is not limited to the brake pad spring either pulling or pushing the brake pad back into its initial position, unless otherwise specified or apparent. Accordingly, the pad spring can be configured to generate any pulling or pushing return force.

[0031] The guided section can be shaped, positioned, and / or dimensioned to interact with the guide structure to achieve the guiding effect. This guiding effect can, for example, cause the guided section and / or other deformable or movable sections of the brake pad spring (particularly relative to the brake pad) to move in a desired and defined manner. For instance, the guide structure can slide and / or push the guided section along it during movement of the brake pad, causing the guided section to move and / or deform in a defined and repeatable way.

[0032] Accordingly, in one embodiment, the guided section is configured to move and / or slide along the guide structure during displacement of the brake pad relative to the guide structure. This movement and / or sliding can generally occur in a tangential direction, e.g., tangentially with respect to a side face of the brake disc and / or tangentially with respect to a front or back face of the brake pad that includes the guide structure.

[0033] The guiding structure can be or include a projection or a step. For example, it can have a protruding or exposed surface against which the guided part can rest.

[0034] Alternatively, the guide structure can also be or include a recess, in particular a slot or groove. The guided section can be at least partially accommodated in the recess. The recess can provide a particularly reliable guiding effect.

[0035] In general, the lead and the led lead can overlap.

[0036] The guide structure can be located on the front surface of the brake pad facing the brake disc. It can, for example, extend along the entire front surface. The guide structure can generally be elongated. It can extend along the longitudinal axis of the brake pad, for example, in a direction extending from one axially outer side of the brake pad to the other. The guide structure can, for example, run at an angle of less than 45° to the longitudinal axis. The guide structure can It may be bent, curved, kinked, or straight. It can be designed to change the position of the guided section of the pad spring when the brake pad is moved, e.g., in a direction orthogonal to a displacement axis of the brake pad (e.g., vertically up and down and / or horizontally left and right).

[0037] The guide structure can be manufactured, for example, by casting. Alternatively, it can also be manufactured by machining. The guided section (or the lining spring in general) can be manufactured, for example, by bending or forming. The lining spring can, for example, bent from sheet metal.

[0038] According to another aspect, at least a section of the guide structure is provided on a guide projection of the brake pad. The guide projection can be configured according to one of the examples disclosed herein. It can be accommodated in a brake caliper assembly of the vehicle disc brake. The guide structure can, for example, extend at least partially within or along the guide projection and, for example, towards a geometric center of the brake pad.

[0039] Positioning the guide structure on or near the guide projection ensures close proximity to the lining spring. This reduces the distance between the guide structure and the lining spring, enabling a compact design of the lining spring.

[0040] In one embodiment, the brake pad comprises a backing plate and a friction lining, and the guide structure is provided in or on the backing plate. The backing plate can be stiffer and / or harder than the friction lining. It can also be less susceptible to wear. Consequently, a guide structure formed in the backing plate can provide a particularly reliable guidance function.

[0041] Another embodiment provides that the guided section is supported by and / or touches the guide structure.

[0042] In one example, the guided section comprises (or is) a projection that is incorporated into the guide structure. The pad spring, for instance, may include a section (e.g., a tab as described above) that extends along the brake pad and optionally contacts it, particularly its front or back face. The guided section may project from and / or relative to the (tab) section, and may extend, for example, toward or into the guide structure. This enables a particularly reliable engagement between the guided section and the guide structure.

[0043] According to another embodiment, the extent and / or direction of the guided section's movement varies during brake pad displacement. For example, the guided section can move along a curved path and / or change its position along a vertical axis extending between the aforementioned lower and upper edges of the brake pad. This movement can be guided by the guide structure. This allows for the adjustment of a desired deformation behavior and / or stiffness characteristic of the pad spring, e.g., depending on the brake pad displacement. The extent of the movement (or any other movement) of the guided section can be defined, for example, by a rate of change of movement and / or by a distance traveled by the guided section along a specific axis per unit of brake pad displacement.

[0044] The brake pad spring can generally exhibit linear deformation behavior and / or a linear stiffness characteristic. For example, the restoring force can change linearly depending on the displacement of the brake pad. This can limit the risk of large deformations and stresses on and in the brake pad spring, thus extending its service life and reliability.

[0045] In one aspect, the guide structure has at least a first and a second section that run at an angle to each other and / or whose curvatures differ. This can lead to one of the exemplary extensions of the guide structure described above (e.g., bent, kinked, curved, etc.). Furthermore, this can be easy to manufacture while simultaneously enabling effective guidance of the guided section to define its deformation behavior and / or stiffness characteristics as desired.

[0046] According to another embodiment, the guide structure has at least one of the following dimensions (where a maximum or an average value of the respective dimension can be considered): a) The total depth of the guide structure, measured, for example, orthogonally to a plane of the brake pad, can be less than 10 mm, in particular less than 5 mm, and, for example, between 1 mm and 2 mm. The depth can have a positive sign if the guide structure has a projection or step. It can have a negative sign if the guide structure has a recess. b) The width of the guide structure can be less than 10 mm, in particular less than 5 mm, and e.g. between 2 mm and 3 mm. The width can be measured in a plane of the brake pad. It can extend orthogonally to a path of movement of the guided section. c) The length of the guide structure can be less than 50 mm, in particular less than 25 mm, and, for example, between 8 mm and 12 mm. The length can be measured in a plane of the brake pad and / or perpendicular to its width. It can extend along a path of movement of the guided section. The length can be a flattened length, for example, in the case of a non-straight guide structure.

[0047] Each of these dimensions contributes to achieving a reliable guiding effect while avoiding excessive structural weakening of the brake pad.

[0048] In one embodiment, the length of the guide structure exceeds its width and / or depth (e.g., by at least a factor of two or at least a factor of four). Additionally or alternatively, the width can be greater than the depth. If the guide structure is provided with a correspondingly elongated configuration, this helps to achieve a guiding effect during a large proportion or even the entire displacement of the brake pad.

[0049] Exemplary embodiments are described in conjunction with the following figures. The reference numerals in the figures can be used for identical or similar features. Fig. Figure 1 shows part of a brake arrangement according to a prior art example; Fig. 2 is a top view of the brake assembly of Fig. 1; Fig. Figure 3 is a partial front view of the front of a brake pad according to a non-stressed embodiment having a straight but inclined guide structure. Fig. Figure 4 is a partial front view of a brake pad according to another embodiment of the invention with a bent guide structure. Fig. Figure 5 is a partial front view of a brake pad according to a further embodiment of the invention with a curved guide structure. Fig. 6 Fig. Figure 6 is a partial front view of a brake pad according to a non-stressed embodiment with a straight guide structure. Fig. 7 Fig. Figure 7 is a partial front view of a brake pad according to a non-stressed embodiment with multiple guide structures. Fig. 8 Fig. Figure 8 is a side view of part of a lining spring according to an embodiment of the invention. Fig. 9 Fig. Figure 9 is a side view of part of a lining spring according to another embodiment of the invention. Fig. 10 Fig. Figure 10 is a front view of part of a lining spring according to another embodiment of the invention. Fig. 11 Fig. Figure 11 is a front view of part of a lining spring according to another embodiment of the invention.

[0050] Fig. Figure 1 shows a part of a brake arrangement 1 according to a known example from the prior art. The brake arrangement 1 is built symmetrically about an axis M.

[0051] The brake assembly 1 comprises a brake caliper assembly 20 and a brake pad 4. The brake caliper assembly 20 is not fully shown, as can be seen from the horizontal section axis C in Fig. As can be seen in Figure 1. The position of a bridge area 22 of the brake pad assembly 20 is also only schematically represented by a dashed line. In the example shown, a brake pad carrier of the brake caliper assembly 20 can be seen, which can be arranged on one side of the brake disc facing a wheel rim (not shown).

[0052] The brake assembly 1 comprises a brake pad 4. The brake pad 4 is generally a planar element that has a friction lining on the surface facing the viewer or, alternatively, on the surface facing away from the viewer. Each of these surfaces runs parallel to a brake disc (not shown). A geometric center point of the brake disc, through which its axis of rotation passes, lies along the axis M and (in Fig. 1) below the brake pad 4. The axis M therefore extends radially with respect to the axis of rotation (which is orthogonal to the image plane). Note that the axis M also passes through a geometric center point or, more generally, through a central part of the brake pad 4.

[0053] A displacement axis D of the brake pad 4 runs orthogonally to the image plane.

[0054] Also shown is a longitudinal axis LA of the brake pad 4, which runs orthogonally to the axis M and the displacement axis D. The longitudinal axis LA connects two axially outer edge sections 24 of the brake pad 4, of which in Fig. Only one is visible. A guide projection 3 is formed on both outer edge regions 24. The outer edge regions 24 are connected to each other by a (radially) upper edge region 28 of the brake pad 4 and a radially lower edge region 30.

[0055] Each guide projection 3 (or in other words, each guide ear) is received in a guide recess 34 of the brake caliper assembly 20. The guide recess 34 extends orthogonally to the image plane of Fig. 1. It therefore extends along the displacement axis D of the brake pad 4, along which the brake pad 4 moves towards and away from the brake disc (not shown).

[0056] In the example shown, the brake pad 4 and the brake caliper assembly 20 do not directly touch, at least not within the guide recess 34. Instead, a pad spring 13 is shown, which also projects perpendicularly into the plane of the image. The pad spring 13 is arranged axially (with respect to the longitudinal axis L) between the brake pad 4 and the brake caliper assembly 20. It is bent from a sheet metal piece, so that a side edge 40 of the pad spring 13 is visible in the illustrated view.

[0057] The lining spring 13 comprises several sections that are angled relative to each other by bending. One in Fig. One optional radial upper clamping area 15 of the pad spring 13 comprises, for example, a clamping section 8 for engaging a projection 12 of the brake caliper assembly 20 with a hook portion 6. The pad spring 13 also includes an optional engagement section 10 for engaging a recessed area 11 of the brake caliper assembly 20. In this way, the pad spring 13 is secured to the brake caliper assembly 20 to prevent, for example, displacement along the displacement axis D of the brake pad 4.

[0058] The lining spring 13 serves to return the brake linings to their original position. For this purpose, it can have an elastically deformable section in the form of a tab 50. The tab 50 contacts the guide projection 3 of the brake lining 4 and rests against it, specifically at the front face of the guide projection 3 and the brake lining 4.

[0059] A portion of the lining spring 13 is generally shaped according to the form of the guide recess 34. More precisely, its form is adapted to that of the guide recess 34 so that it can be received within it and contact the inner surfaces of the guide recess 34. Likewise, the form is adapted to an outline of the guide projection 3 in order to also contact its outer circumferential surface and, in particular, a portion of the outer edge section 24 encompassed by the guide projection 3.

[0060] At a radially lower edge of the guide projection 3, the pad spring 13 optionally has an end section 42 which has a kinked shape to contact both the brake caliper assembly 20 and an outer circumference of the brake pad 4.

[0061] This makes it clear that the pad spring 13 is shaped so that it extends closely along the brake caliper assembly 20 and along an outer circumference of the brake pad 4, remaining in contact with it. Furthermore, the optional (radially lower) end section 42 is bent so that it rests directly against the brake pad 4 to achieve the desired damping effects with respect to the mechanical vibrations generated during braking.

[0062] Fig. Figure 2 is a top view of part of the brake pad assembly 1 in a direction along the axis M of Fig. 1. Fig. Figure 2 shows the contact between the tab 50 of the pad spring 13 and the brake pad 4. When the brake pad 4 is moved along the axis of movement D, the tab 50 slides along the guide projection 3 in the direction of the arrow shown, generally undergoing elastic deformation. This movement along the guide projection 3 is not guided by any special structure; it is unguided and structurally unsupported. For example, the surface of the guide projection 3 against which the tab 50 rests is generally smooth.

[0063] The arrow in Fig. 2 indicates a tangential direction, e.g., with respect to and along the front surface of the brake pad 4. A contact section 55 of the pad spring 13, which is in contact with the end face of the brake pad 4, is in Fig. 2 marked with a corresponding reference symbol.

[0064] A lining spring 13 according to this disclosure can in principle be analogous to the lining spring 13 of the Fig. 1 and Fig. It may be shaped as shown in section 2. However, it may also be shaped differently, for example, if it does not include any of sections 8, 20, 40, or 42. Furthermore, it includes a guide section 52 described below, which is not present in the prior art.

[0065] The Fig. 4 and Fig. Figures 5 show partial views of a brake pad 4 according to embodiments of the invention and the Fig. 3, Fig. 6 and Fig. Figure 7 shows unclaimed embodiments. Fig. Figures 3-7 each show a section of the brake pad 4 with a guide projection 3. The brake pads 4 can generally be arranged similarly to those in the Fig. 1 and Fig. 2 or designed according to another example from the prior art, with the exception of the guidance structure described below 52.

[0066] The guide structure 52 is in each case an elongated recess, in particular a slot or a groove. However, it could also be a projection or a step. The depth dimension of the guide structure 52 extends orthogonally to and into the image plane. Its width dimension W and length dimension L are given in Fig. 3 are drawn and will be included in the Fig. 4, Fig. 5, Fig. 6 to Fig. 7 similarly defined.

[0067] In each of the Fig. 3-7 The guide structure 52 extends within a front surface of the brake pad 4 and, in particular, within a back plate thereof. The guide structure 52 further extends into the Fig. 3-7 from a leading edge 3 to a geometric center of the brake pad 4.

[0068] In Fig. 3 The guide structure 52 has a straight shape. It also extends along the (not shown) longitudinal axis LA of the brake pad 4 (see Fig. 1), but at a small angle to it (e.g., less than 45°). The guide structure 52 is therefore arranged obliquely to the longitudinal axis LA.

[0069] In Fig. The guide structure 52 has a bent shape. A first section, located closer to an outer edge of the brake pad 4, extends along the (not shown) longitudinal axis LA of the brake pad 4, but at a small angle to it (e.g., less than 20°). A second section, located closer to the (not shown) geometric center of the brake pad 4, extends along the (not shown) longitudinal axis LA of the brake pad 4 and at a larger angle to it (e.g., more than 20°).

[0070] In Fig. The guide structure 52 has a curved shape. The curvature is defined such that the guide structure 52 is convexly curved towards a lower edge of the brake pad 3.

[0071] In Fig. 6 is the guide structure 52 straight and runs parallel to the (not shown) longitudinal axis LA of the brake pad 4 (see Fig. 1).

[0072] In Fig. Figure 7 shows two guide structures 52, both of which are straight and parallel to the (not shown) longitudinal axis LA of the brake pad 4 (see Fig. 1) extend. It is pointed out that in each of the Fig. 3-5 a second management structure 52 with an identical (or different) form could be provided alongside the one shown.

[0073] Fig. Figure 8 is a side view of the tab 50 of a lining spring 13, which is not shown otherwise, according to an embodiment of the invention. The viewing direction corresponds to that of Fig. 2. At a free end section, the tab 50 has a projection that forms a guided section 54 and connects to the contact section 55 of Fig. 2 corresponds. This guided section 54 can be in a management structure 52 according to one of the Fig. 3-7 should be included (the size ratios between the Fig. Figures 3-6 are merely schematic). For this purpose, the tab 50 is to be arranged such that its guided section 54 faces the guide structure 52 (i.e., by tilting the tab 50 by 90° relative to the image plane of Fig. 6). The guided section 54 can thus be introduced into the management structure 52 and interact with it.

[0074] The in Fig. The guided section 54 shown in Figure 8 can extend over the entire dimension of the tab 50, which is orthogonal to the image plane. Alternatively, it can also be present only locally, similar to the following: Fig. 10 below. In this case, it can Fig. 8 corresponds to a section view of the tab 50, where the section plane passes through the guided section 54.

[0075] Fig. Figure 9 shows an alternative design of a tab 50, where the viewing angle is identical to that of Fig. 8 is. In this case, the guided section 54 is a projection formed, for example, by an additional mass or by a thickened end part of the tab 50.

[0076] The Fig. 10 and Fig. Figure 11 shows front views of tabs 50, e.g. when the tabs 50 of the Fig. 8 and Fig. Figure 9 is rotated 90° towards the viewer. Furthermore, the tabs 50 are shown as seen from a guide structure 52 of a brake pad 4.

[0077] In Fig. Figure 10 shows a guided section 54. This guided section 54 has a circular shape, but can also have another shape, e.g., a polygonal shape. The tab 50 of Fig. 10 can be placed in any of the 52 leadership structures. Fig. 3-6 intervene.

[0078] In Fig. 11 shows two guided sections 54. These can be integrated into the management structures 52 of Fig. 7 intervene (i.e., a controlled section 54 intervenes in one of the control structures 52). Such a large number of control structures 52 and controlled sections 54 can achieve a particularly reliable control effect.

[0079] It should be noted that the embodiments of the Fig. 8 and Fig. 9 with each of the examples of Fig. 10 and Fig. 11 can be combined.

[0080] When the brake pad 4 is moved, the guided section 54 and thus the tab 50 can move freely. Fig. 8-11 similar to the arrow in Fig. 2 move. Due to the form of the management structures 52 in the Fig. However, in 3-5, this movement can be superimposed with a component that extends orthogonally to the arrow. In each of the Fig. 3, Fig. 4, Fig. 5, Fig. 6 to Fig. 7 The guide structures 52 define a desired and repeatable movement path for the guided section 54. This allows a defined deformation behavior and stiffness characteristic of the tab 50 and the entire lining spring 13 to be set. List of reference symbols 1 Brake arrangement 3 Leading advantage 4 hook parts 6 lead 8 clamping range 10 Intervention area 11 omitted section 12 lead 13 Lining clip / Lining spring 15 clamping section 20 Brake pad arrangement 22 Bridge section 24 outer edge areas 28 upper edge area 30 lower edge area 34 Guide recess 50 tabs 52 Management structure 54 Guided Section 55 Contact section M axis (of mirror symmetry) LA Longitudinal axis C section axis D displacement axis W width Length L

Claims

Brake pad assembly (1) for a vehicle disc brake, comprising: - at least one brake pad (4) which, when braking, is displaceable from a starting position towards a brake disc along a displacement axis (D), - at least one pad spring (13) which is designed to move the brake pad (4) back to its starting position after braking;wherein the brake pad (4) has at least one guide structure (52) and the pad spring (13) has at least one guided section (54), wherein the guide structure (52) is configured to guide a movement of the guided section (54) during displacement of the brake pad (4), wherein the guide structure (52) has at least a first section and a second section which are at an angle to each other and / or whose curvatures differ from each other, wherein an extent and / or a direction of the movement of the guided section (54) varies during the displacement of the brake pad, wherein the pad spring (13) has a linear deformation behavior and / or a linear stiffness characteristic, wherein the restoring force of the pad spring (13) changes linearly depending on the displacement of the brake pad (4). Brake pad arrangement (1) according to claim 1, wherein the guided section (54) is configured to slide along the guide structure (52) during a displacement of the brake pad (4). Brake pad arrangement (1) according to claim 1 or 2, wherein the guide structure (52) has a recess, in particular a slot. The brake pad arrangement (1) according to one of the preceding claims, wherein the guide structure (52) is provided on a front surface of the brake pad (4) which is configured to face the brake disc. Brake pad arrangement (1) according to one of the preceding claims, wherein at least a section of the guide structure (52) is provided on a guide projection (3) of the brake pad (4), wherein the guide projection (3) is to be received in a brake caliper arrangement of the vehicle disc brake. Brake pad arrangement (1) according to one of the preceding claims, wherein the brake pad (4) has a backing plate and a friction lining and the guide structure (52) is provided in or on the backing plate. Brake pad arrangement (1) according to one of the preceding claims, wherein the guided section (54) is supported on and / or touches the guide structure (52). Brake pad arrangement (1) according to one of the preceding claims, wherein the guided section (54) has a projection which is received in the guide structure (52). Brake pad arrangement (1) according to one of the preceding claims, wherein the guide structure (52) has at least one of the following dimensions: a) a total value of a depth of the guide structure (52), wherein the depth is measured orthogonally to a plane of the brake pad (4), is less than 10 mm, in particular less than 5 mm and e.g. between 1 mm and 2 mm; b) a width (W) of the guide structure (52) is less than 10 mm, in particular less than 5 mm and e.g. between 2 mm and 3 mm; c) a length (L) of the guide structure (52) is less than 50 mm, in particular less than 25 mm and e.g. between 8 mm and 12 mm.

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