Lining support plate for motor vehicle disc brakes and method for the manufacture thereof

Abstract

To provide a lining support plate in which the effort and cost of logistics for supplying necessary members is minimized and the attachment of spring elements is simplified. [Solution] A lining support plate (1) for a disc brake of an automobile, having a front portion (2) for receiving a friction lining, the lining support plate (1) has a back portion (3), on which a receiving device (4) is arranged, the receiving device (4) being configured to receive a spring element (5) consisting of a spring base (6) and two spring legs (7, 8) arranged at the ends of the spring base (6), the receiving device (4) being configured integrally with the lining support plate (1).

Description

[Technical field]

[0001] The present invention relates to a lining carrier plate for a disc brake of a motor vehicle according to the preamble of patent claim 1. The invention further relates to a lining carrier plate for a disc brake of a motor vehicle according to the preamble of patent claim 1. 9 and patent claims 13 The present invention relates to a method for producing such a lining support plate. [Background technology]

[0002] Lining support plates for motor vehicle disc brakes according to the preamble of patent claim 1 are known in a variety of ways. In such disc brake systems, the lining support plate is guided and supported in a shaft (well) of a brake caliper or brake support. The lining support plate is designed to absorb the brake pressure transmitted by the brake cylinder, which is then transmitted to the brake disc. In order to hold the lining support plate securely in the shaft of the brake caliper or brake support, hold-down springs are provided, which usually engage on the upper side of the lining support plate and are preloaded radially and tangentially relative to the lining support plate by means of a hold-down device. Lining support plates with hold-down springs of this kind are shown, for example, in DE 10 2013 008 155 A1. A wire spring for a brake pad arrangement in a floating caliper brake is also known from DE 10 351 477 B4, in which the wire spring is supported in a recess in a lining support plate for the brake pad via a circular helix of the wire spring in order to prevent the brake pad from rattling and making noise in its guide in the brake pad arrangement. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] German Patent Application Publication No. 102013008155 [Patent Document 2] German patent no. 10351477 Summary of the Invention [Problem to be solved by the invention]

[0004] The object of the present invention is to provide a lining support plate according to the preamble of patent claim 1, in which an alternative arrangement of the spring elements is provided, whereby the logistical effort and costs for supplying the necessary parts should be minimized and the mounting of the spring elements in the lining support plate should also be simplified.It is a further object of the present invention to provide a method for producing a lining support plate according to the preamble of patent claim 1. [Means for solving the problem]

[0005] With regard to the device, the problem is solved by a lining support plate having the features of patent claim 1. With regard to a method for producing a lining support plate of this kind, the problem is solved by the respective patent claims 9 Features or claims of 13 The problem is solved by a method having the features of: Advantageous configurations of the invention are evident from the subclaims. That is, according to the first aspect of the present invention, 1. A lining support plate for a disc brake of a motor vehicle, the plate having a front portion adapted to receive a friction lining, the plate comprising: the lining support plate has a back surface, on which a receiving device is arranged, the receiving device being configured to receive a spring element consisting of a spring base and two spring legs arranged at the ends of the spring base, the receiving device being configured integrally with the lining support plate; A lining support plate is provided, characterized in that More specifically, in the first aspect, 1. A lining support plate for a disc brake of a motor vehicle, the plate having a front portion adapted to receive a friction lining, the plate comprising: the lining support plate has a back surface, on which a receiving device is arranged, the receiving device being configured to receive a spring element consisting of a spring base and two spring legs arranged at the ends of the spring base, the receiving device being configured integrally with the lining support plate; and the receiving device has at least one support element for each spring leg of the spring base and both spring legs, It is characterized by: According to a second aspect of the present invention, A method for manufacturing a lining support plate according to the first aspect, comprising the following method steps: a. providing at least a two-part female mold of the lining support plate having a female mold for the receiving device; b. providing a metal melt or a cast iron melt; c. closing the at least two-part female mold of the lining support plate; d. filling the at least two-piece female mold of the lining support plate with the melt; e. at least partially hardening the melt within the closed female mold of the lining support plate; f. opening the female mold of the lining support plate; g. removing the at least partially cured lining support plate; containing, A method is provided that includes: According to a third aspect of the present invention, A method for manufacturing a lining support plate according to the first aspect, in which the receiving device has support elements configured as knob-like protrusions for supporting the spring legs and / or the spring base, comprising: The receiving device of the lining support plate is configured as a support element and has a knob-shaped protrusion with an undercut protruding from the back surface of the lining support plate by pressing a predetermined portion of the lining support plate, the knob-shaped protrusion being configured in a first step of a deformation process, and the knob-shaped protrusion is further deformed in a second step by being split open in a direction opposite to that of the deformation process of the first step, thereby forming the undercut. A method is provided that includes: It should be noted that the reference numerals in the claims of the present application are intended solely to facilitate understanding of the present invention and are not intended to limit the present invention to the illustrated forms. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0006] In the present invention, the following configurations are possible. (Form 1) 1. A lining support plate for a disc brake of a motor vehicle, the plate having a front portion adapted to receive a friction lining, the plate comprising: The lining support plate has a back surface, on which a receiving device is arranged, the receiving device being configured to receive a spring element consisting of a spring base and two spring legs arranged at ends of the spring base, the receiving device being configured integrally with the lining support plate. (Form 2) The receiving device preferably comprises at least one support element for each spring leg of the spring base and both spring legs respectively. (Form 3) At least one of the support elements preferably has an undercut, relative to the rear side of the lining support plate, for receiving the spring base or the spring leg of the spring element. (Form 4) The receiving device preferably has a locking element assigned to a support element for the spring base. (Form 5) The receiving device preferably has a common support and guide element for both spring legs arranged on the central longitudinal axis between the upper surface of the lining support plate and the support elements of both spring legs. (Form 6) The lining support plate is preferably constructed as a metal casting part, preferably as a cast iron part. (Form 7) The lining carrier plate is preferably designed as a steel plate and the receiving device is formed by a stamping process, in particular by a punching process. (Form 8) The receiving device preferably comprises a support element configured as a knob-like protrusion for supporting the spring leg and / or the spring base. (Form 9) The spring element is preferably configured as a wire spring. (Form 10) A method for manufacturing said lining support plate, comprising the following method steps: a. providing at least a two-part female mold of the lining support plate having a female mold for the receiving device; b. Providing a melt of metal, in particular a melt of cast iron; c. closing the at least two-part female mold of the lining support plate; d. filling the at least two-piece female mold of the lining support plate with the melt; e. at least partially hardening the melt within the closed female mold of the lining support plate; f. opening the female mold of the lining support plate; g. removing the at least partially cured lining support plate; Contains. (Form 11) It is preferred that at least one of the support elements for the spring base and both of the spring legs is provided with an undercut, which is preferably made by milling at least one of the support elements. (Form 12) It is preferred that a locking element assigned to the spring base and / or a common support element for both spring legs is / are post-machined. (Form 13) The spring element is preferably mounted within the receiving device. (Form 14) A method for producing a lining support plate according to claim 8, comprising the steps of: The receiving device of the lining support plate is configured as a support element and has a knob-shaped protrusion with an undercut portion protruding from the back surface of the lining support plate by pressing a specific portion of the lining support plate, wherein the knob-shaped protrusion is configured in a first step in a deformation process, and further wherein in a second step, the knob-shaped protrusion is split and deformed in the opposite direction to the deformation process of the first step, thereby forming the undercut portion. (Form 15) It is preferred that rolled steel strip is used to manufacture the lining support plate.

[0007] The lining carrier plate according to the invention for motor vehicle disc brakes, in particular for commercial vehicle disc brakes, has a front part which is designed to receive a friction lining. The lining carrier plate according to the invention is characterized in that it has a back part on which a receiving device is arranged and which is designed to receive a spring element (hereinafter also simply called "spring") consisting of a spring base and two spring legs arranged at the ends of the spring base. The spring element can be designed as a wire spring. In this case, the receiving device is designed in material connection with the lining carrier plate on the back part of the lining carrier plate, i.e. materially integral with the lining carrier plate. In particular, in the sense of the invention, a lining carrier plate according to the invention with such a spring element can also be claimed. (In the present application, the term "materially bonded" or "materially integral" refers to all connections in which the connecting parts are held together by atomic or molecular forces and which at the same time are non-removable connections which can only be separated by destruction of the connecting parts. Materially bonded connections, i.e. materially integral connections, are distinguished by the production of connections between components which, under normal circumstances, can no longer be separated except by destruction. hand There are.)

[0008] It is therefore particularly advantageous in the lining support plate according to the invention that the receiving device for receiving the spring element is an integral component of the lining support plate and is already manufactured together with the lining support plate during the manufacture of the lining support plate. The receiving device is thus held in the lining support plate in a non-losable manner. It is therefore not necessary to previously hold individual elements, such as screws or retaining clips, in order to arrange the receiving device for the spring element on the back side of the lining support plate. This saves the logistical effort and costs of procuring and storing these individual elements. Furthermore, the processing step of joining the lining support plate and the individual elements on the back side of the lining support plate is also saved. In contrast to lining support plates in which the receiving device for the spring element can be attached later on the back side of the lining support plate by means of retaining clips to be screwed in or the like, the processing step of creating a thread for the screw on the back side of the lining support plate is also saved. Overall, the present invention significantly reduces the manufacturing costs of lining support plates with receiving devices for spring elements.

[0009] The lining support plate according to the invention therefore makes it possible to minimize the logistical and energy expenditures for arranging a receiving device for the spring element on the rear side of the lining support plate, whereby both the economic and ecological (i.e. in terms of installation and processing operations) balance of the lining support plate according to the invention is significantly improved compared to the lining support plates known from the prior art according to the preamble of patent claim 1.

[0010] According to a first advantageous embodiment of the invention, the receiving device on the rear side of the lining support plate has at least one support element for each of the spring base and both spring legs, which ensures that the spring is held reliably in the shaft of the brake caliper or brake support during operation of the lining support plate in the brake system, the support elements supporting the spring element under load (bias) in such a way that the spring element can fulfill the desired spring function in the brake system, in particular as a hold-down spring.

[0011] Alternatively, only one support element can be provided for both spring legs and / or the spring base. This support element can be configured as a protrusion similar to a holding grip or pocket and with at least one passage opening or cutout. This support element can have two passage openings, in particular holes, for inserting the spring legs.

[0012] The receiving device can have only one support element for the spring base and / or only one support element for one spring leg, this reduced receiving device having, according to an advantageous embodiment, one or more support and guide elements as described below for stabilizing the assigned spring.

[0013] In a further advantageous embodiment of the invention, at least one of the support elements can have an undercut on the back side of the lining support plate for receiving the spring base or the spring leg of the spring element. Such an undercut further improves the support and the positioning of the spring element in the receiving device, since the individual elements of the spring element, in particular the spring leg and the spring base, are surrounded and engaged by such an undercut on multiple sides. This optimizes the resistance to loss of the spring inserted in the receiving device. Here, such an undercut can be designed in different ways. For example, in a particularly advantageous embodiment, it is conceivable that the support element has a vertically arranged region on the lining support plate to which an angled region of the support element, in particular a region of the support element at a right angle, is connected, and which region is arranged at an angle of less than 90° to the back side of the lining support plate, in particular parallel to the back side of the lining support plate. Another possibility for the design of such undercuts is that the support elements for the spring base or spring leg are designed in such a way that they have an acute angle with respect to the back surface of the lining carrier plate in the area where the spring element is supported on these support elements. The undercuts described here are particularly well suited for a loss-resistant retention of the spring element in a receiving device for the spring element. In principle, the undercuts can be designed in such a way that they are adapted to the cross-sectional shape (profile) of the spring element. In particular, these undercuts can have a correspondingly segment-shaped support surface for the spring element in the case of a spring element that is circular in cross section.

[0014] The embodiment of the invention in which the receiving device has a locking element assigned to the support element for the spring base has the same objective: between the locking element and the support element for the spring base, an area is formed in which the inserted spring element can be received in a loss-resistant manner. This is particularly effective when the support element for the spring leg has the above-mentioned undercut. This achieves that the spring element is held in the receiving area for the spring element on the back side of the lining carrier plate in a sliding-resistant and loss-resistant manner.

[0015] In a further advantageous embodiment of the invention, the receiving device can have a common support / guiding element for both spring legs, which is arranged on the central longitudinal axis between the top surface of the lining support plate and the support elements of both spring legs. This support / guiding element is used first of all so that the spring legs can be supported on this support element under load when the lining support plate is mounted in the shaft of a brake caliper or brake support. Furthermore, this support / guiding element is used as a guide element when the spring is inserted into the receiving device on the rear surface of the lining support plate. During insertion, the spring can be guided by this common support element in such a way that the common support element of the spring legs is located between these spring legs and the spring element slides in such a way that it is guided between the support elements assigned to the respective spring legs. The aforementioned locking element assigned to the support element of the spring base is then used to fix the spring in the receiving device, the spring base of the spring element being pushed over the aforementioned locking element. In this case, the locking element assigned to the support element for the spring base is provided with an entrance ramp, over which the spring base of the spring element is pushed in order to securely hold the spring base between the support element and the locking element.

[0016] Instead of or in addition to the aforementioned common support and guide elements, further elements can be provided, each assigned to an individual spring leg, which are preferably arranged not on the central longitudinal axis but between the upper surface of the lining support plate and the support elements of both spring legs. These elements can be configured, for example, as protrusions with a cylindrical or polygonal cross section and can also optionally have undercuts.

[0017] According to a further advantageous embodiment of the invention, the spring legs can be provided at their open ends with support areas, by means of which the spring elements are supported on defined support elements of the disc brake device when the lining carrier plate is mounted in the disc brake device, so that the spring elements are provided with contact areas for the disc brake device, the contact areas of the spring elements being adapted to the disc brake device.

[0018] Furthermore, it is particularly advantageous if the lining carrier plate according to the invention is designed as a metal cast part, preferably as a cast iron part, since most of the lining carrier plates currently used are produced as cast iron parts of this type. In order to produce the lining carrier plate according to the invention, therefore, it is not necessary to provide an entirely new manufacturing process for the cast parts. It is sufficient to appropriately adapt the mold for the lining carrier plate. Otherwise, the entire manufacturing process can remain unchanged. The use of various molds that are interchangeable during production is provided in any case, since different brake systems require different lining carrier plates.

[0019] The method according to the invention for producing the aforementioned lining carrier plate, in particular made of cast metal, comprises the following method steps: a. Providing at least a two-part female mold of a lining support plate having a female mold for a receiving device; b. Providing a melt of metal, in particular a melt of cast iron; c. Closing the at least two-part female mold of the lining support plate; d. filling the at least two-piece female mold of the lining support plate with the melt; e. at least partially hardening the melt within the closed female mold of the lining support plate; f. opening the female mold of the lining support plate; g. Removing the at least partially cured lining support plate.

[0020] The method according to the invention is characterized in that the female mold of the lining carrier plate has a female mold for the receiving device, which is produced as an integral component of the lining carrier plate already during casting of the lining carrier plate, without the need for a subsequent joining step for attaching the corresponding receiving device to the rear side of the lining carrier plate.

[0021] In order to ensure a reliable positioning of the spring element in the receiving device, at least one of the support elements for the spring base and both spring legs can be provided with an undercut. Such an undercut is preferably produced by milling at least one support element. In this case, the milling can be carried out in such a way that the shape of the undercut is adapted to the shape or the cross-sectional shape (profile) or cross-section of the spring element, so that a particularly good support effect of the spring element in the receiving device is achieved when the spring element is loaded during operation.

[0022] According to a further advantageous method step, the locking element assigned to the spring base and / or the common support element for both spring legs can be remachined, in particular the locking element assigned to the spring base being provided with an entrance ramp which facilitates a secure positioning of the spring element in the receiving device when the spring element is inserted into the receiving device.

[0023] In order to ensure a reliable functioning of the lining carrier plate together with the spring element in the braking system, it is ultimately provided for the spring element to be mounted in a receiving device.

[0024] Alternatively, the lining carrier plate can also be designed as a steel plate. For example, the lining carrier plate can be stamped from rolled steel strip. The receiving device can be formed by an embossing process, in particular by a punching process. (Here, "embossing" refers to a punch-and-bend process (similar to deep drawing), in which material is extruded on the underside of the plate element opposite the engagement side of the embossing tool.)

[0025] According to an advantageous further development, the receiving device has a knob-like (hump-like) protrusion, also referred to as knob, on the rear side of the lining carrier plate as a support element, in particular for supporting the spring leg, which in the mounting position preferably rests against the knob at least in a certain area.

[0026] The knobs can be formed, for example, in a circular shape, but can also have other shapes, for example, the knobs can be formed in a semicircular shape, with the undercuts each only pointing towards the center of the lining carrier plate.

[0027] The method according to the present invention for manufacturing the aforementioned lining support plate from steel material so as to have a knob on its back side comprises that the receiving device for the lining support plate is configured to have as a support element a knob-shaped protrusion with an undercut protruding from the back side of the lining support plate by pressing a specific part of the lining support plate, the knob-shaped protrusion being configured in a first step of the deformation process, and the method further comprises that in a second step, the knob-shaped protrusion is split and deformed in a direction opposite to that of the deformation process of the first step, whereby the undercut is formed.

[0028] To manufacture the lining carrier plate, a rolled steel strip can be used, the lining carrier plate or the profile of the lining carrier plate can be stamped out of the steel strip, for example.

[0029] Further objects, advantages, features and applicability of the present invention become apparent from the following description of an embodiment based on the drawings, in which all described and / or illustrated features, either on their own or in any meaningful combination, and independently of their grouping in the claims or in the dependent relationships of the claims, constitute the subject matter of the present invention. [Brief description of the drawings]

[0030] [Figure 1] FIG. 1 shows a first embodiment of a lining support plate according to the present invention, with the rear surface viewed from above. [Diagram 2] FIG. 2 shows the lining support plate of FIG. 1 into which the spring elements are fitted. [Diagram 3] FIG. 2 shows the lining support plate of FIG. 1 with the spring element finally positioned. [Figure 4] FIG. 4 shows a detailed view of the receiving device of the lining support plate of FIGS. 1 to 3. [Diagram 5]FIG. 4 shows another detailed view of the receiving device of the lining support plate of FIGS. 1 to 3. [Figure 6] FIG. 2 shows a second embodiment of a lining support plate according to the invention, as viewed from above on the rear surface. [Figure 7] FIG. 7 shows the lining support plate of FIG. 6 into which the spring elements are fitted. [Figure 8] FIG. 7 shows the lining support plate of FIG. 6 with the spring element finally positioned. [Figure 9] FIG. 9 shows a third embodiment similar to that of FIGS. 6 to 8, but without a common support element for the spring legs. [Figure 10] FIG. 6 shows a fourth embodiment similar to that of FIGS. 1 to 5, but without a common support element for the spring legs. [Figure 11] FIG. 5 shows a fifth embodiment of a lining support plate having knob-like protrusions and a number of support elements. [Figure 12] FIG. 10 also shows a fifth embodiment of a lining support plate having knob-like projections and a number of support elements. [Figure 13] FIG. 10 also shows a fifth embodiment of a lining support plate having knob-like projections and a number of support elements. [Figure 14] 14 shows the embodiment according to FIGS. 11 to 13 as a cross-sectional view taken along the cutting line (dashed line) in FIG. 11. FIG. [Figure 15] FIG. 6 shows a sixth embodiment of a lining support plate having knob-like protrusions but without support elements for the spring legs. [Figure 16] FIG. 16 shows the embodiment according to FIG. 15 in a cross-sectional view. [Figure 17] FIG. 17 shows the embodiment according to FIGS. 15 and 16 as an enlarged portion of the drawing of FIG. 16 (encircled by dashed lines). EXAMPLES

[0031] In Fig. 1, a lining support plate 1 (plate supporting friction material) manufactured according to the method according to the invention is shown in a top view of the back side 3. The lining support plate 1 has a front side 2, on which a friction lining can be attached, a back side 3, a lining support plate upper side 17 and a lining support plate lower side 24. On the back side 3 of the lining support plate 1, a receiving device 4 for a spring element (not shown in Fig. 1) is shown (in a circular dashed line). The receiving device 4 consists of a support element 9 for the spring base, two support elements 10, 11 for each spring leg, a common support element (and guide element) 18 for the spring legs and a locking element 15 for the spring base. The locking element 15 further has an entry ramp 23 over which the spring base is pushed in order to be positioned between the locking element 15 and the support element 9 when the spring element is attached.

[0032] The spring element 5 can be configured as a wire spring, as in the present embodiment (see Figs. 2 and 3). In the present embodiment of the wire spring 5, the spring base 6 is a substantially semicircular bend to which spring legs 7, 8 are connected, which run essentially parallel to one another, in particular in the receiving device 4. The semicircular bend and the parallel spring legs form an approximately U-shaped section 35 of the spring element 5 or wire spring. The free or open ends 19, 20 of the spring legs 7, 8 are at least partially bent towards one another, in particular the free ends 19, 20 extending outwards in the assembled position. The free ends 19, 20 are further provided with support regions 21, 22 by means of which the spring element 5 or the spring legs 7, 8 can be supported in the assembled state and thus spring action in the brake system during operation in the brake system. The spring element 5 can have a transition from the U-shaped portion 35 approximately in the middle (seen in the longitudinal direction) to the folded-over region of the spring legs 7, 8. In particular, the lining support plate 1 according to the invention can have such a spring element 5, in particular a wire spring.

[0033] The receiving device 4 is configured in this exemplary embodiment with mirror symmetry with respect to the central longitudinal axis 16 of the lining support plate 1, whereby both the common support element 18 for the spring legs 7, 8 as well as the locking element 15 and the support element 9 for the spring base 6 are located with mirror symmetry on this central longitudinal axis 16, whereas the support elements 10, 11 of the respective spring legs 7, 8 are spaced apart from the central longitudinal axis 16 with mirror symmetry.

[0034] A detailed view of the receiving device 4 is shown in FIG. 4 as a perspective view from the lining support plate upper side 17 (see FIG. 1). In FIG. 4, it can be seen that the support element 9 for the spring base is arranged on the back side 3 of the lining support plate 1 in the region of the lining support plate lower side 24 (see FIG. 1). Adjacent to the support element 9 for the spring base, a locking element 15 is arranged, which is provided with an entrance ramp 23 that runs away from the support element 9. The spring base of the spring element to be inserted can be pushed over this entrance ramp 23, so that it can be reliably positioned between the support element 9 for the spring base and the locking element 15. The locking element 15 ensures that the inserted spring element cannot be easily removed again from the receiving device 4. Furthermore, the support element 9 for the spring base can also be provided with an undercut, which is not implemented in this embodiment.

[0035] Furthermore, in the view of Fig. 4, both support elements 10, 11 on the back side 3 of the lining support plate 1 can be clearly seen. In this embodiment, the support elements 10, 11 have undercuts 13, 14, respectively, against which the spring legs of the spring element are positioned when the spring element is inserted. The undercuts 13, 14 ensure that the spring element is held in the receiving device 4 in cooperation with the locking element 15 and the support element 9 for the spring base so that it cannot be lost. Finally, Fig. 4 also shows a common support element 18 for the spring legs of the spring elements, which in the embodiment selected here is designed in a cylindrical shape.

[0036] Figure 5 shows another detailed view of the receiving device 4, here shown as a view from above on the underside 24 of the lining support plate (see Figure 1), in which the front side 2 of the lining support plate 1, on which the friction lining can be attached, is also visible.

[0037] In the drawing of FIG. 5, the undercuts 13, 14 of the support elements 10, 11 for the spring legs of the spring elements can be clearly seen. The support elements 10, 11 are designed in such a way that they have webs 25, 26 which stand essentially vertically on the back side 3 of the lining support plate 1, to which areas 27, 28 which run essentially parallel to the back side 3 of the lining support plate 1 are connected. The undercuts 13, 14 are designed in such a way that their shape is adapted to the cross-sectional shape (profile) or cross-section of the spring legs of the spring elements, which are circular in cross section. Such undercuts adapted to the shape of the spring legs result in a very good support effect of the support elements 10, 11 as well as a secure and unlosable arrangement of the spring elements in the receiving device 4.

[0038] 2 and 3 also show the insertion of the spring element 5 into the receiving device 4 of the lining carrier plate 1. The spring element 5, manufactured from a metal or wire section with a circular cross section, essentially consists of a rounded spring base 6 to which the parallel-extending regions of the spring legs 7, 8 are connected. At the open ends 19, 20 of the spring legs 7, 8, further support regions 21, 22 are arranged, by means of which the spring element 5 or the spring legs 7, 8 can be supported in the assembled state in the braking system during operation therein, so that the spring action is achieved.

[0039] As can be seen from FIG. 2, the insertion of the spring element 5 begins with the spring base 6 being positioned between the common support element 18 of the spring legs 7, 8 and the respective support elements 10, 11 of the spring legs 7, 8, with these spring legs 7, 8 being positioned facing the common support element 18.

[0040] The spring element 5 is then slid in the direction of the support element 9 for the spring base 6, with the spring legs 7, 8 positioned between their respective support elements 10, 11. For a loss-proof positioning of the spring element 5 in the receiving device 4, the spring base 6 of the spring element 5 is then pushed over the entry ramp 23 of the locking element 15 until the spring base 6 is located between its support element 9 and the locking element 15. During the sliding of the spring base 6 over the entry ramp 23 of the locking element 15, tension is generated in the spring element 5, which tension is removed after the spring base 6 has been pushed over the entry ramp 23 and the locking element 15. In the process, the spring base 6 jumps into the hollow space between the locking element 15 and the support element 9 for the spring base 6. Thereby, the spring base 6 is held securely and unlosably in the receiving device 4 for the spring element 5, since the locking element 15 prevents the spring element 5 from being pushed back, whereas the undercuts 13, 14 of the support elements 10, 11 of the spring legs 7, 8 make it impossible for the spring element 5 to pivot out of the receiving device 4.

[0041] During operation in the brake system, the spring element 5 can be supported under load by means of its spring legs 7, 8 on a common support element 18, whereby the lining support plate 1 is held in its position. The spring element 5 functions as a hold-down spring for the lining support plate 1.

[0042] In figures 6 to 8 a second embodiment of the lining support plate 1 according to the invention is shown, which substantially corresponds to the first embodiment of figures 1 to 6, but differs from the first embodiment in that further support elements 29, 30 are provided for the spring legs 7, 8, respectively, which support elements 29, 30 are support Possessing elements 11, 10 and Between the lining support plate upper surface 17 support Possessing elements 11, 10 of In contrast to the support elements 10, 11 of the spring legs 7, 8, however, the support elements 29, 30 do not have an undercut, but alternative embodiments are also conceivable in which the support elements 29, 30 are also provided with undercuts.

[0043] 6 to 8, the support elements 29, 30 are substantially aligned with the support elements 11, 10 assigned to the spring legs 7, 8, respectively, with respect to the central longitudinal axis 16 and are configured mirror-symmetrical with respect to the central longitudinal axis 16. In other embodiments, the support elements 29, 30 can also have a larger or smaller distance with respect to the central longitudinal axis 16 than the support elements 11, 10, and can then not be aligned with these support elements 11, 10 but still have mirror symmetry with respect to the central longitudinal axis 16.

[0044] Figure 9 shows a third embodiment of a lining support plate 1 according to the invention, which substantially corresponds to the second embodiment of Figures 6 to 8, but, unlike the second embodiment, in the third embodiment no support elements 18 for the spring legs 7, 8 are provided.

[0045] Figure 10 shows a fourth embodiment of the lining support plate 1 according to the invention, which substantially corresponds to the first embodiment of Figures 1 to 5, but in the fourth embodiment, likewise no support elements 18 for the spring legs 7, 8 are provided.

[0046] 11 to 14 show a fifth embodiment of the lining support plate 1 according to the invention, in which the lining support plate 1, which is essentially made of steel, has a receiving device with four knob-like projections 31, which in this embodiment are configured as support elements, also called knobs. Of course, other total numbers of knobs 31 are also conceivable. The knobs 31 are provided on the back side 3 of the lining support plate 1. The spring legs 7, 8 rest against the knobs 31 at least in certain areas. As can be seen further in FIGS. 11 to 13, in this embodiment, support elements 29, 30 for the spring legs 7, 8 are also provided. In FIG. 14, a cross section through the center line according to FIG. 11 is shown.

[0047] The sixth embodiment according to figures 15 to 17 differs from the fifth embodiment in that the lining support plate 1 according to the invention does not have lateral support elements 29, 30 for the spring legs 7, 8. The lining support plate 1, which is essentially made of steel, has a number of knobs 31, here four knobs 31, against which each spring leg abuts at least in certain areas. Figure 16 shows a cross section according to the cutting line 36 through the knob 31 in figure 15, and in figure 17 an enlarged part of the drawing in figure 16 (encircled by a dashed line) can be seen.

[0048] As can be seen in particular from the enlarged view of FIG. 17, the knob-like projection 31 is configured as a pressed-in part and is thereby configured in one piece with the lining support plate 1 .

[0049] To produce the knob-like protrusions or knobs 31, first a number of circular knobs, for example with a diameter of approximately 6 mm, are pressed into the front surface 2 of the lining support plate 1 using a tool with a concave tip, so that a number of knobs 31 protrude from the surface of the lining support plate 1 on the back surface 3. In general, the ratio of knob diameter to the thickness of the lining support plate 1 can be between 1 and 2, i.e. preferably slightly above 1.

[0050] In a second method step, a tool is pressed against the protruding knob 31 in the opposite direction in order to split the knob 31 open in a further deformation process and form a protrusion 32 with an undercut 33 therefrom. A tool with a pyramidal tip can be used, which facilitates splitting the knob 31. A tool with a conical tip can also be used, but a tool with a pyramidal tip is preferred.

[0051] As can be further seen from FIG. 17, the projection 32 is split apart to form a strong undercut 33. R In the front part 2 of the lining support plate 1 there remains a circular recess 34 having a depth of 2 to 3 mm, which can be bent convexly at the bottom, for example. [Explanation of symbols]

[0052] 1 Lining support plate 2 Front part 3 Back part 4 Receptor 5 Spring elements 6 Spring base 7 Spring leg 8 Spring leg 9 Support element (for spring base 6) 10 Support element (for spring leg 8) 11 Support element (for spring leg 7) 13 Undercut 14 Undercut 15 Rock Elements 16 Central longitudinal axis 17 Lining support plate upper surface 18 Support and guide element (for spring legs 7, 8) 19 Free or open end 20 Free end or open end 21 Support area 22 Support area 23 (Climbing) Approach slope 24 Lining support plate underside 25 Web 26 Web 27 Region (connected to Web 25) 28 Region (connected to Web 26) 29 Supporting Elements 30 Supporting Elements 31 Knob-shaped protrusion (knob) 32 Protrusion 33 Undercut 34 Circular recess 35 U-shaped section 36 Cutting line

Claims

1. A lining support plate for a disc brake of a motor vehicle, having a front part (2) adapted to receive a friction lining, the lining support plate (1) has a back surface (3) on which a receiving device (4) is arranged, the receiving device (4) being adapted to receive a spring element (5) consisting of a spring base (6) and two spring legs (7, 8) arranged at the ends of the spring base (6), the receiving device (4) being constructed integrally with the lining support plate (1), said receiving device (4) having at least one support element (9, 10, 11, 29, 30, 31) for each spring leg of said spring base (6) and both said spring legs (7, 8), A lining support plate comprising:

2. at least one of the support elements (9, 10, 11, 29, 30, 31) has an undercut (13, 14, 33) with respect to the back surface (3) of the lining support plate (1) for receiving the spring base (6) or the spring legs (7, 8) of the spring element (5); The lining support plate according to claim 1 , characterized in that

3. the receiving device (4) having a locking element (15) assigned to a support element (9) for the spring base (6); The lining support plate according to claim 1 or 2, characterized in that

4. said receiving device (4) having a common support and guide element (18) for both said spring legs (7, 8) arranged on a central longitudinal axis (16) between a lining support plate upper surface (17) and the support elements (10, 11) of both said spring legs (7, 8); The lining support plate according to any one of claims 1 to 3, characterized in that

5. the lining support plate (1) is constructed as a metal casting or as a cast iron part; The lining support plate according to any one of claims 1 to 4, characterized in that

6. the lining support plate (1) is configured as a steel plate and the receiving device (4) is a stamped or stamped component; The lining support plate according to any one of claims 1 to 4, characterized in that

7. the receiving device (4) having a support element (31) configured as a knob-like protrusion (31) for supporting the spring legs (7, 8) and / or the spring base (6); The lining support plate according to claim 6, characterized in that

8. the spring element (5) is configured as a wire spring; The lining support plate according to any one of claims 1 to 7, characterized in that

9. A method for manufacturing a lining support plate according to any one of claims 1 to 5, comprising the following method steps: a. Providing at least a two-part female mold of the lining support plate (1) having a female mold for the receiving device (4), b. Providing a melt of metal or a melt of cast iron; c) Closing the at least two-part female mold of the lining support plate (1); d. filling the at least two-part female mold of the lining support plate (1) with the melt; e. At least partially hardening the melt in the closed female mold of the lining support plate (1); f. Opening the female mold of the lining support plate (1); g. Removing the at least partially cured lining support plate (1); containing, The method comprising:

10. at least one of the support elements (9, 10, 11, 29, 30, 31) for the spring base (6) and for both spring legs (7, 8) is provided with an undercut (13, 14), said undercut (13, 14) being produced by milling at least one of said support elements (9, 10, 11, 29, 30, 31); The method according to claim 9, characterized in that

11. a locking element (15) assigned to the spring base (6) and / or a common support element (18) for both spring legs (7, 8) is post-machined; 11. The method according to claim 9 or 10, characterized in that

12. said spring element (5) being mounted in said receiving device (4); The method according to any one of claims 9 to 11, characterized in that

13. A method for manufacturing a lining support plate according to claim 7, comprising the steps of: the receiving device (4) of the lining support plate (1) is configured as a support element (31) and is configured to have a knob-shaped protrusion (31) with an undercut portion (33) protruding from the back side (3) of the lining support plate (1) by pressing a predetermined portion of the lining support plate (1), the knob-shaped protrusion (31) being configured in a first step of a deformation process, and further, the knob-shaped protrusion (31) is split open and deformed in a second step in a direction opposite to that of the first deformation process step, thereby forming the undercut portion (33); The method comprising:

14. - a rolled steel strip is used to manufacture the lining support plate; The method according to claim 13, characterized in that

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