BR112018072997B1 - DISC BRAKE FOR A UTILITY VEHICLE, BRAKE PAD ASSEMBLY AND METHOD FOR MOUNTING THE BRAKE PADS TO THE DISC BRAKE - Google Patents

Abstract

DISC BRAKE FOR A UTILITY VEHICLE, BRAKE PAD ASSEMBLY AND METHOD FOR MOUNTING THE BRAKE PADS TO THE DISC BRAKE. The present invention relates to a disc brake (100) for a commercial vehicle, with a brake caliper (1) that encompasses a brake disc (2), preferably configured as a sliding caliper, which is arranged on a support brake pad (3) stationary and with a tensioning device for tensioning the brake, two brake pads (100, 200), which have a respective pad support (110, 210) and a friction lining (120, 220) fixed therein, and each being inserted into its respective pad well (11, 12) of the brake support (3), said caliper having a central caliper opening (1d) above the brake disc (2) and being that a fixing arc (250) is provided, which is configured in such a way that it radially fixes only the brake pad (100, 200) on the reaction side in its pad well (11, 12) in the brake support. brake, with the fixing arch (250) being retained in the brake caliper (1) with its end opposite the brake pad (200), and f) the brake pad (100) on the tension side is fixed in his well of (...).

Description

DESCRIPTION

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

[002] In a generic type disc brake, especially configured as a sliding caliper brake, in the case of braking by means of a tensioning device that is actuatable pneumatically or by an electric motor, a brake pad on the action side is pressed against a brake disc on the side of the vehicle. As the braking process continues, the brake caliper is moved against the brake pad tensioning device on the action side, in relation to the brake disc, with drag and compression of the brake pad from the action side, opposite, to the other. side of the brake disc.

[003] Regarding the state of the art, document DE 4020287 A1 is initially mentioned. According to this document, both brake pads contain a respective pad spring configured as a leaf spring. The insert holders, after insertion into their well, are retained with a respective insert spring, which, in turn, in the assembled position, are fixed together by a retaining arch that acts from the upper side on the leaf spring. and extends in a transverse direction to the longitudinal axis of the leaf spring. For fixing the insert spring splints provided with rear notches are formed in the insert holder (or insert support plate), which pass through slit-shaped recesses in the leaf spring, which then engage behind the rear notches, so that so that a closure is formed due to the shape, through which the insert spring is retained in the radial direction and in such a way that an independent release in the tensioned position or partially is excluded. Another similar prior art is shown by document DE 142014106090 A1. According to these documents, the brake caliper features a respective central caliper opening through the brake disc, through which the two brake pads can be inserted into the pad wells, which makes simple brake pad replacement possible. On the other hand, this makes it necessary. In the context of this application, the brake pads in the pad wells are easy to clamp radially outwards relative to the axis of rotation of the brake disc.

[004] In the case of fixed caliper brakes this problem is not presented in this way, since then, as a rule, a strut is led through the brake disc, which may present an ventilation opening, which, due to of its sizing, it was not designed or determined for insert replacement. This means there is no need for an insert retention arch that extends over the caliper opening.

[005] The solution initially described is improved in the respective patents EP 1963702 B1 and EP 2255101 B1. Through these solutions, by means of a cover that is placed from the pad spring or a part of the pad spring, fixed to the pad holder and preferably movable radially relative to it, it is achieved that the pad spring is always safely tensioned, transmitting load in the requested region.

[006] As technological background, documents EP 0694134B1, DE 102012110461 A1 and WO 2014/079869 A1 are also mentioned.

[007] The objective of the invention is to improve a disc brake of the type mentioned initially in such a way that, with constructively simple means, good braking behavior is achieved. Another objective is to provide a matching brake pad and a matching brake pad assembly.

[008] This objective is achieved through a disc brake with the characteristics of claim 1. The other determined objective is achieved through a brake pad assembly with the characteristics of claim 22. It is further achieved through the claim 26 process.

[009] Claim 1 discloses a disc brake for a commercial vehicle, with an over-engaging brake caliper, preferably configured as a disc caliper, which is disposed on a fixed brake support and with a tensioning device for tensioning the brake pads, two brake pads, which have a respective pad holder and a friction pad, one of which can be pressed against the brake disc as a tension-side brake pad by means of the tensioning device and the other is arranged as a brake pad on the reaction side on the opposite side of the brake disc, and are inserted into a respective pad well of the brake support, with the brake caliper having a central caliper opening over the brake disc, through the where both brake pads can be inserted into the respective pad well of the brake support, and whereby a fixing arc is provided, which is configured in such a way that it radially fixes only the brake pad on the reaction side in its pad well in the brake bracket, the clamping arc being retained in the brake caliper with its end opposite the brake pad, and the tension side brake pad being secured in its pad well in the brake support radially by means of a clasp due to the shape.

[0010] On the one hand, in this way an advantageous disc brake and a particularly advantageous reaction-side brake pad and an associated fixing arch are provided, which has a constructive form restricted to the retention function of the radial brake pad. , simple, short and advantageous. The short fixing arc, due to the small material set, leads to a reduction in weight and brake costs. This is complemented by an advantageous arrangement of the brake pad on the tension side in its pad well in the brake bracket, where it, due to its shape - especially via side lugs - is fixed radially in a simple manner. The two brake pads are fixed in a radially distinct manner in the brake support in such a way that the entire disc brake is advantageously improved and optimized. The tension-side brake pad additionally reduces, through its configuration, the effect of inclined wear.

[0011] According to an advantageous configuration, the tension-side brake pad may have a pad spring, which is retained or fixed to the tension-side brake pad - preferably in a central region - and has ends that elastically rest on brake support projections of the brake support, so that the tension side brake pad is pulled radially upward preferably in its pad well in the brake support. Thus the tension-side brake pad is pulled radially outward (away from the brake disc rotation axis) into the pad well via the pad spring.

[0012] According to the invention, there is also provided an advantageously simple process for mounting brake pads on a disc brake according to one of the corresponding claims, in which: the brake pad on the reaction side is inserted radially into its pad well in the brake support, and it is fixed radially there with a fixing arch that is arranged in the brake caliper, the brake pad on the tension side is initially guided or introduced into the disc brake in a radial manner and it is then moved via an axial movement to a position in the pad well of the brake support facing it, in which it is fixed radially by means of a lock due to the shape between the brake pad on the tension side and the brake support, and furthermore the ends of a pad spring which is retained in the brake pad on the tension side are supported on brake support projections of the brake support, so that they abut against these brake support projections of the brake support. brake.

[0013] Especially the assembly of the brake pad on the tension side is very simple. Each of the two brake pads is mounted in its pad well simply and securely.

[0014] It is advantageous for the fixing arc to overlap just one of the two brake pads, totally or partially, in an axially parallel direction to the brake disc, to fix it. This pad is thus held almost radially "from above" and secured in the pad well of the brake bracket or brake caliper against movement (very large radials). In this case, the radially clamped or retained reaction-side brake pad can be introduced into a pad well of the pad holder. It is an especially preferred configuration, so that both brake pads are arranged in pad wells of the brake holder and can be introduced into the opening in the brake caliper - which is a mounting opening, and even substantially radially. from above and possibly in a complementary way through a smaller axial movement. A brake bracket with pad wells on both sides of the brake disc is very stable and advantageous. The pad well supports the pad circumferentially and radially downward against the brake disc. The radially "short" clamping arc secures a brake pad upwards against loosening and excessive radial movements, possibly supported by a spring arranged in the middle. The other brake pad is fixed radially, in another advantageous way - not by the same clamping arch.

[0015] Fastening the brake pad on the reaction side with the "short" clamping arc has the advantage of being easily carried out, especially when it is retained axially immovable in the brake caliper and does not move when movements in relation to the brake caliper especially in the region of its backplate or pad plate.

[0016] In this case, depending on variants, the fixing arch can be fixed to the brake caliper in a releasable or non-releasable way or be configured integrally with it.

[0017] An advantageous is an optional configuration of the fixing arch with this brake pad as a constructive unit, which is exchanged as a whole when changing the pad. This is simple and leads to a simple and safe renewal of all elements to be exchanged in the "reaction side pad" construction unit (brake pad, pad spring, if applicable: cover and clamping arch).

[0018] The fixing arch can rest on the insert holder or engage it behind and thus cooperate with it. You can also cooperate with it with closure due to shape, for example, engage it with a closure shoulder due to shape in the region of a corresponding cavity (or vice versa).

[0019] As a possible - especially advantageous - variant, the fixing arch can be connected to the insert so that it does not get lost, especially connected to the insert holder so that it does not get lost. This has the advantage that this construction group is built completely and thus an incorrect construction is ruled out. Incorrect construction means, in this case, that the backplate would be built towards the brake disc.

[0020] In this case, different forms of connection between the fixing arch and the brake pad are possible. The connection can occur through a cover, where one or more splints are provided, which fully or partially engage the fixing arch and are then assembled through welding, riveting, bending or similar process in such a way that disassembly without destroying a component is no longer possible. Engagement can occur backwards, as shown in the sketches, or upwards.

[0021] The connection can occur via a collar pin, which, for example, passes through the fixing arch and is welded or riveted to the cover (closing due to material, strength or shape).

[0022] The connection can also occur through a pin that is fixed to the insert back plate in a fixed or displaceable way.

[0023] The fixing arc can also cross the back insert plate, totally or partially. Then, in this variant, a spring is permanently fixed to the clamping arc, so that the clamping arc is connected to the insert in such a way that it cannot be lost - as already mentioned above.

[0024] In another concept, the pad retention spring can be displaced from the pad. In a region away from the pad, as a rule, lower temperatures occur than directly on the pad, which has a positive effect on the duration and also on the possibility of a greater choice of spring materials. As the springs are protected against corrosion with a coating, where temperature also has an effect on the service life, an improvement can also occur here. The clamping arc is connected to the insert in a fixed way or with a gap for tolerance compensation. In this case, the spring presses the clamping arch downwards. Through the clamping arch, the pad is pressed down onto the brake support. This spring system can occur through different spring designs, for example, leaf spring, spiral spring, leg spring, ...

[0025] Retention of the fixing arch on the pad and/or brake caliper can occur simply by means of one or more fixing means, especially pins or clips or one or more screws.

[0026] It is therefore possible and advantageously simple for the fixing arch to be non-releasably fixed to a part of the brake pad on the reaction side. It can be secured by fastening due to the material in sections in the insert holder, for example by welding.

[0027] The invention also provides an advantageous brake pad for a disc brake according to one of the corresponding claims, which is configured for cooperation with the clamping arch. The fixing arch and the brake pad can - but should not necessarily - form a constructive unit.

[0028] In this case the clamping arc is configured in such a way that it radially fixes only the reaction side brake pad in its pad well in a disc brake.

[0029] In this case, it is especially advantageous that the fixing arch is fixed to the brake pad on the reaction side, since the pad is fixed axially to the brake caliper and is not displaced in it with increasing wear. Then the invention can be carried out in a simple way. However, it is not restricted to this variant.

[0030] According to another advantageous variant, a cable bridge is provided, in which at least one signaling cable is disposed or retained, which cable bridge crosses the opening of the brake caliper and is fixed, at least in two regions, directly or indirectly in the brake caliper. This means that the signal cable can be securely positioned above the brake caliper opening despite the "short" fixing arc.

[0031] There is also provided a brake pad assembly with a reaction side brake pad according to claims 22 to 27 and with a tension side brake pad, the tension side brake pad being is fixed radially to the pad holder by means of at least one locking element due to the shape in the pad holder and has a pad spring which is fixed to the brake pad on the tension side and the pad spring has ends which are configured to elastically bear on brake support projections of an associated brake support and so that the reaction side brake pad is configured for cooperation with a clamping arch, which is configured in such a way that it fixes radially only one of the two brake pads in its pad well radially in a disc brake.

[0032] Thus the brake pad on the tension side does not require any clamping arc on the tension side for radial fixation. Furthermore, this insert reduces the effect of inclined wear. According to one aspect of the invention, the tablet on the reaction side does not necessarily need to have this constructive form. It can be configured instead without bumps as well. Therefore the "short" clamping arc is especially advantageous. Generally speaking, this provides a very economical disc brake with two brake pads optimally adapted to their function as a pad set.

[0033] In short, a disc brake is also advantageously provided for a commercial vehicle, with a brake caliper that overlaps a brake disc, preferably configured as a sliding caliper, which is fixed to a fixed brake support and has a central caliper opening in the brake disc, with a tensioning device for tensioning the brake, and with two brake pads inserted through the caliper opening, which have a respective pad support and a friction pad fixed to it, of which one can be pressed against the brake disc on one side of the brake disc as a tension-side brake pad by means of the tensioning device and the other is arranged as a reaction-side brake pad on the opposite side of the disc. brake pad, and a clamping arch is provided, which is configured in such a way that it fixes or retains only one of the two brake pads in the pad well radially in relation to the brake disc rotation axis.

[0034] The present invention, in a configuration of the previously clarified variants as well as in a configuration to be considered as inventive, also independent in itself, further relates to a disc brake with an advantageous brake support (claim 14). Generic brake supports for commercial vehicle disc brakes, actuatable pneumatically or by means of an electric motor, substantially present a connection region, which serves for fixing to a vehicle axle, for example, through screws on an axial flange of such a vehicle axle, as well as a pad well for receiving and supporting at least one brake pad. The pad well is then formed through a bridge with support surfaces for radial support of the brake pad and support projections projecting therefrom, the support projections guiding the respective brake pad laterally and, in the case of a braking process, receive braking forces transmitted by a brake disc to the brake pad. Brake supports are also known which enclose the brake pad with two pad wells for receiving a brake pad on the tension side and a brake pad on the action side. The tension side brake pad is defined here as the brake pad that is moved or driven directly by a disc brake tension unit. The reaction-side brake pad is defined here as the second brake pad which, after the pressure of the tension-side brake pad on the brake disc, is pressed onto the friction surface of the reaction-side brake disc via a movement of the brake caliper.

[0035] For mounting a brake pad in such a pad well of a brake support, the brake pad is introduced into the pad well of the brake support radially to the axis of rotation of the brake disc, along the inner surfaces support projections. If the inner surfaces of the support projections are made flat and the geometry of the pad well is substantially rectangular, this makes it possible to very easily insert the brake pad from above through a pad well opening of a brake caliper of the disc brake. directly into the tablet well.

[0036] Such an arrangement, however, requires an additional retention or fixing system for the brake pad or pads, especially for radial fixing of the brake pads, to secure them against loosening, for example, in the form of a fixing arch. pad that spans a brake caliper pad well opening toward the axis of rotation of the brake disc.

[0037] In the case of a brake support in which the support projections are configured in such a way that one or both brake pads are fixed, radially by closure due to the shape, in one or both support projections, it is It is necessary, after a first radial movement through the opening of the brake caliper, to move the respective brake pad initially axially parallel to the vehicle axis in the pad well, until the respective projections on the side walls of the brake pads and corresponding recesses in the inner sides of the support projections of the brake support are overlapping, so that the brake pad reaches an insertion position in which the brake pad can be introduced into the pad well in the direction of the axis of rotation of the brake disc. Such a brake support is known, for example, from document DE 102015114351 A1.

[0038] When assembling especially the tension side brake pad covered by the disc brake, it is desired to be able to position it in the simplest and fastest way possible during the insertion process.

[0039] So far it is the aim of a development of the previously discussed variants as well as an independent invention to provide a disc brake with a brake support in which the assembly of brake pads is more simplified.

[0040] This objective is achieved through a disc brake with a brake support with the characteristics of claim 14.

[0041] The brake support for a disc brake of a commercial vehicle actuated pneumatically or by an electric motor then has a connection region for attachment to the axle of a vehicle, at least one pad well for receiving and supporting at least one brake pad.

[0042] The tablet well is formed by an input side support projection, an output side support projection and a bridge connecting the input side support projection and the output side support projection . In this case, regions of the bridge neighboring the support projections form support surfaces for radial support of the brake pad.

[0043] On a side surface of the support projections, respective guide contours are arranged for guiding the brake pad to an insertion position laterally from the pad well, in which the brake pad can be introduced into the pad well axially to the axis. of the vehicle between the support projections.

[0044] With such a brake support, it is possible to facilitate the alignment of a pad to be inserted into the pad well of the brake support, since an exact central positioning of the brake pad is forced through the guide contour.

[0045] If the brake pad, upon insertion, is placed offset to the side at the beginning, a side edge of a pad support plate of the brake pad meets the guide contour and is guided along the contour guide to its correct insertion position.

[0046] Advantageous embodiment variants of the invention are the subject of the dependent claims.

[0047] According to an advantageous embodiment variant of the brake support according to the invention, the support surfaces for radial support of said at least one brake pad are laterally enlarged in a mounting region to limit the sliding movement. of the brake pad to the insertion position. This makes it possible, in a simple way, to insert the brake pad into the insertion position, in which the brake pad can be moved in the pad well parallel to the axis of rotation of the brake disc.

[0048] The guide contours, according to a preferred embodiment of the invention, are configured as compacting material of the support projections on the side surfaces of the support projections. The guide contours are then conformable to the support projections, in a simple way in the insert support casting process.

[0049] In this case, the guide contours are shaped in such a way that they conform to one another in the direction of the bridge.

[0050] Especially preferably, the guide contours have at least one respective guide region in a straight line, which allows the respective brake pad to be guided to the exact central position in the initially offset position to the side.

[0051] In the case of a brake support in which projections are formed on the respective inner sides of the support projections, which serve for the radial fixation of the brake pad with a correspondingly molded pad support plate with lateral recesses, it is A reception is formed to receive a respective projection of the insert support plate preferably below the projections, the guide contours terminating in a respective side wall of the respective reception.

[0052] This way the brake pad can always be guided to the correct insertion position along one of the guide contours.

[0053] The disc brake according to the invention features a displaceable brake caliper that engages over a brake disc, brake pads arranged on both sides of the brake disc in a pad well of a brake support with a pad support plate and a friction pad fixed thereto.

[0054] The brake pads are retained in the support projections of the locking brake support due to the shape, on the input side and on the output side, radially to the axis of rotation of the brake disc, with the brake support being configured as described above.

[0055] Preferably, only the support projections on the tension side present the guide contours for guiding the brake pad to an insertion position lateral to the pad well.

[0056] Especially when assembling the brake pads on the tension side, as a rule, exact alignment is hampered laterally by the brake disc, so that here the proposed guide contours clearly facilitate assembly.

[0057] Other advantageous configurations of the invention are characterized in the dependent claims.

[0058] Examples of carrying out the invention are described below with the aid of the attached drawings. They are shown:

[0059] Figure 1 - in a) a perspective view of a first disc brake according to the invention and in b) a view of a brake support of the disc brake of a);

[0060] Figure 2 - the view of Figure 1a with brake caliper partially removed;

[0061] Figure 3 - a perspective view of a brake support on the tension side of the disc brake of Figure 1 (and the disc brake of Figure 9);

[0062] Figure 4 - a first brake pad on the reaction side with a pad spring, a cover and a fixing arch arranged thereon;

[0063] Figure 5 - a partial sectional view of the arrangement of Figure 4;

[0064] Figure 6 - the brake pad in the arrangement of Figures 4 and 5;

[0065] Figure 7 - the fixing arc of the arrangement in Figure 4;

[0066] Figure 8 - the cover of the arrangement of Figure 4;

[0067] Figure 9 - a perspective view of a second disc brake according to the invention;

[0068] Figure 10 - the view of Figure 9 with brake caliper partially removed;

[0069] Figure 11 - a variant of a reaction-side brake pad with a fixing arc disposed thereon;

[0070] Figure 12 - a partial sectional view of the arrangement of Figure 11;

[0071] Figure 13 - the brake pad in the arrangement of Figures 11 and 12;

[0072] Figure 14 - the fixing arc of the arrangement in Figure 11;

[0073] Figure 15 - a brake pad cover of Figures 13 and 14;

[0074] Figure 16 - another variant of a reaction-side brake pad with a fixing arc disposed thereon; It is

[0075] Figure 17 - in a) a perspective view of a part of a third disc brake according to the invention, in b) a section through a partial region of the arrangement of a), in c) a view in partial section of a partial region of the arrangement in a), and in d) a fixing arc of the arrangement of a) in separate perspective representation;

[0076] Figure 18 - a perspective view of a part of a fourth disc brake according to the invention;

[0077] Figure 19 - in a) a perspective view of a part of a fifth disc brake according to the invention and in b) a fixing arc for the arrangement of a) in respective separate perspective representation;

[0078] Figure 20 - in a) a perspective view of a part of another disc brake according to the invention and in b) a fixing arc for the arrangement of Figure 19 or 20a) in respective separate perspective representation;

[0079] Figure 21 - in a) a perspective view of a part of a sixth disc brake according to the invention with a cable bridge and in b) the disc brake cable bridge of a);

[0080] Figure 22 - in a) a perspective view of a part of a seventh disc brake according to the invention with a bridge configured differently from Figure 21, in b) a sectional enlargement of a), in c) the disc brake cable bridge of a) and in d) a disc brake pad fixing arch of a);

[0081] Figure 23 - a perspective representation of a variant embodiment of a brake support and a brake pad before assembly;

[0082] Figure 24 - a perspective detail view of the brake support of Figure 23 with pad partially inserted radially;

[0083] Figure 25 - a perspective detail view of the brake pad and brake support of Figure 1 with the brake pad radially introduced completely before axial introduction into the pad well;

[0084] Figure 26 - a view corresponding to Figure 25 with brake pad inserted into the pad well;

[0085] Figure 27 - a top view of the brake support of Figure 23;

[0086] Figure 28 - a perspective view of an alternative embodiment of a brake support; It is

[0087] Figure 29 - a perspective detail view of the brake support of Figure 28.

[0088] In Figures 1a and 2 as well as in Figures 9 and 10 a respective disc brake for a commercial vehicle is illustrated. The disc brake has a brake caliper 1 that embraces a brake disc 2. There is an associated electrical or pneumatic actuator, not shown, (for example a brake cylinder). The brake disc 2 has a brake disc rotation axis D. The brake caliper 1 is arranged on a brake support 3. Here the brake caliper 1, in a preferred configuration, is arranged on the brake support 3, displaceable relative to the brake disc 2 axially in the direction of the brake disc axis D (to which concepts such as "axially" and "radially" refer). For this purpose, the brake caliper 1 is supported on guide beams 4 not visible in the detail, which are connected to the brake support 3 fixedly retained on the vehicle.

[0089] The brake caliper 1 comprises a tension section 1a, a caliper hump 1b and two traction rods 1c. The tensioning section 1a receives a brake tensioning device 1 not shown.

[0090] The tension section 1a extends with one side parallel to the plane of the brake disc 2 on one side of the brake disc 2. On the other side of the brake disc 2 the caliper spine 1b is arranged, equally parallel to the brake disc 2. The caliper hump 1b is connected to the tension section 1a at one respective end with a tension rod 1c. The tension rods 1c then extend substantially at right angles to the tension section 1a and the clamp spine 1b.

[0091] The tension section 1a, the caliper hump 1b and the traction rods 1c in this arrangement determine between them a central opening 1d, which crosses the brake disc 2. The opening 1d presents an imaginary longitudinal center line, the which is in the plane of the brake disc 2 and connects the imaginary centers of the traction rods 1c. Furthermore, the opening 1d presents another imaginary transverse line, which connects an imaginary center of the tension section 1a to an imaginary center of the clamp spine 1b.

[0092] A respective brake pad 100, 200 is provided on both sides of the brake disc 2 (not shown in Figure 9). The brake pad 100 - hereinafter also called the tension-side brake pad 100 - is hereinafter disposed on the side of a tensioning device. The other brake pad 200 - hereinafter also called the reaction side brake pad 200 - is arranged on the side of the brake disc 2 opposite the tension side.

[0093] The central caliper opening 1d through the brake disc is designed or sized in such a way that the two brake pads are insertable into the brake support through the caliper opening, which allows a simple pad change.

[0094] Braking occurs by means of the tensioning device arranged in the tension section 1a of the brake caliper 1 in a receiving space, with a brake lever, which is positioned in a dome or in the tension section 1a of the brake caliper. brake 1. The tensioning device is driven by an actuator not shown. It is preferably driven pneumatically or by an electric motor. For this purpose, it is preferably provided with a brake cylinder, which can be arranged in the brake caliper of the disc brake (not shown here).

[0095] The two brake calipers 100, 200 can be compressed on the brake disc 2 on both sides during braking. The brake pad 100 on the tension side, in a configuration such as a sliding caliper brake, when braking comes into contact with the brake disc 2. As the movement continues, the brake caliper 1 is moved in the opposite direction, by through reaction forces that occur, dragging the brake pad 200 on the reaction side, until it also touches the brake disc 2 with friction.

[0096] Each of the brake pads 100, 200 - see Figures 3, 4 and 11 and 16 - has a respective pad support 110, 210 and a pad 120, 220 fixed thereto facing the brake disc 2, which, in operation, it is pressed against brake disc 2 when braking.

[0097] Brake pads 100, 200 can be reached through the central opening 1d for changing and for maintenance. They can be inserted radially "from above" through this central opening 1d into associated tablet wells and withdrawn therefrom. The concepts "above" and "below" are used in this sense below.

[0098] A tension-side pad well 11 for the tension-side brake pad 100 is configured in the brake support 3 on the tensioning device side or in a tension-side section of the brake support. This can be seen in Figure 1b.

[0099] It is foreseen that the brake support 3 covers as a frame a region of the upper edge of the brake disc 2 and has a section on the tension side and on the reaction side. Then a second pad well 12 is configured for the brake pad on the reaction side, preferably also in the brake support 3 (on the reaction side, see Figures 1a and 1b). However, the pad well 12 for the reaction-side brake pad 100 may alternatively also be configured in the brake caliper 1 (when the brake support only has a tension-side section and no reaction-side section). ; not shown here).

[00100] The insert wells 11, 12 (see Figures 1a and 1b) are limited laterally (or in the direction of rotation U and against the direction of rotation U) by support surfaces 11a, 11b; 12a, 12b in the brake support projections 13, 14 and 15, 16 and present a respective pad well bottom 11c, 12c, which is configured between the brake support projections 13 and 14 or 15 and 16.

[00101] The tension side brake pad 100 and the reaction side brake pad 200 are configured differently here. In this case, the brake pad on the tension side 100, in turn, can be configured differently. The representation chosen in Figures 2 and 3 is especially advantageous, but not mandatory.

[00102] The tension-side brake pad 100 of Figures 2 and 3 (suitable for the brake of Figures 1 and 9) has the pad holder 110 and the pad material 120 arranged thereon on one side, which, on the assembled state, it is directed towards the brake disc 2. The pad support 110 has, in turn, two side edges 111, 112, which are parallel to the associated support surfaces of the brake support projections 13, 14. In In relation to the preferred rotation direction U (corresponding to forward travel), the side edge 111 is configured on the exit side and thus serves as a support surface when braking from the forward travel direction. In relation to the preferred rotation direction U (corresponding to a forward displacement) the other side edge 112 is configured on the input side. It thus serves as a support surface when braking from the direction of travel backwards.

[00103] On the side edges 111, 112 - here in the insert well 11 lower edges - there is at least one respective projection 113, 114 in opposite directions pointing outwards. Each of these projections 113, 114 engages with a respective associated back cut 17, 18 of the brake support 3 (see Figure 1b), which are configured in respective brake support projections 13, 14 of the pad well 11 on the side of voltage. Thus, the assembled tension-side brake pad 100 is radially fixed to the brake support 3 and also secured against loosening during braking. The lugs also serve as other support areas when braking. When changing, the new brake pad 100 is inserted radially and then moved axially in such a way that the projections 113 and 114 engage the rear cuts 17, 18. The rear cuts 17, 18 are preferably configured on the two support surfaces of the brake projections. brake support bracket 3 which are in circumferential direction.

[00104] The brake pad 100 on the tension side may also have a pad spring 130. This is fixed to the brake pad on the tension side. This is accomplished in the following way. The insert spring 130 centrally engages a retaining arch 115 integrally configured below on or with the insert holder 110. The insert spring 130 is thus radially fixed. The insert spring 130 also has, on both sides of the retaining arch, a respective slot 131, 132, which is crossed on the upper side of the insert holder 110 by lugs/protrusions 116, 117. In this way, the insert spring 130 is fixed axially and against unscrewing. The ends 133,134 of the pad spring 130 preferably elastically abut against the brake support projection 13, 14. By means of spring tension the brake pad 100 on the tension side is pulled up into its pad well 12 in the support. brake pad 3. Thus the brake pad 100 on the tension side is fixed and retained in the brake bracket 3, especially in a radial manner. It therefore does not need a mounting bracket attached to the brake caliper. The spring prevents rattling very well.

[00105] The brake pad 200 on the reaction side of Figure 4 or Figure 11 has, in turn, a pad support 210 and the pad material 220 disposed on one side thereof, which is directed towards the disc brake 2 in assembled state.

[00106] The pad support 210, in turn, has two side edges 211, 212, which are aligned parallel to and additionally lie parallel to the associated support surfaces 12a, b of the brake support projections 15, 16 of the brake well. pad 12 on the reaction side of brake support 3 (Figure 1a).

[00107] In relation to the preferred rotation direction U (corresponding to a forward displacement) a side edge 211 is configured, in turn, on the exit side and thus serves as a support surface when braking from the direction of travel. forward. In relation to the preferred rotation direction U (corresponding to a forward displacement) the other side edge 212 is configured in turn on the input side. It thus serves primarily as a support surface when braking from the backward direction of travel.

[00108] The brake pad 200 on the reaction side has - see Figures 4 and 5 as well as 12, 13 and 15 - a pad spring 230. On the upper longitudinal edge of the pad holder 210 the pad retention spring 230 is fixed or disposed/retained in a non-releasable manner preferably to a cover 240 - Figures 5, 6, 8 and 12, 13 and 15. Preferably the cover 240 is pivotable on the tablet holder 210 in a limited way.

[00109] On the side edges 211, 212 - here on their lower edges in the insert well 12 - of the insert holder 210 there is no projection pointing outwards in opposite directions. Therefore, these brake pads are not radially secured in this way. It then needs another device for radial fixation in the insert well. To fix the brake pad 200 on the reaction side radially in its pad well 12, a fixing shell 250 is provided (in this sense). This can be designed in one or more pieces.

[00110] The fixing arch 250 is fixed to the brake caliper 1 at one of its ends 251, so that it does not come loose from it when braking. However, to change the pad it can be released from the brake caliper 1.

[00111] The clamping arch 250 is designed and sized in such a way that it fixes only one of the two brake pads 100, 200. Here that is the brake pad 220 on the reaction side, which it fixes, not the brake pad 220. of brake 100 on the tension side, which it does not fix radially.

[00112] The fixing shell 20 is a flat component, preferably perpendicular to its axial direction. This is advantageous, but not mandatory. However, it results in a space-saving configuration. The cross-section of the clamping arc 250 may preferably be rectangular with two parallel narrow sides and two parallel long sides.

[00113] Thus this fixing arch 250 cooperates with the brake pad 220. The brake pad 220 is designed to be fixed by this fixing arch 250 directly or through one or more intermediate elements. It extends from the brake caliper spine 1b parallel to the brake disc axis to the caliper opening 1d, into which it protrudes, but which it does not pass through completely. Its end 252 opposite the brake caliper 1 engages the pad holder 210 of the brake pad 200 on the reaction side. But this end 252 preferably does not also engage the brake disc 2 and more preferably does not engage the brake pad 100 on the tension side (see Figures 1 and 9).

[00114] Furthermore, the caliper opening 1d also does not fully engage in the axial direction (parallel to the brake disc). Therefore, this 250 clamping arch is constructively simple and yet very safe. It only needs to be fixed to one edge of the opening 1d in the brake caliper 1, preferably to the caliper spine 1b.

[00115] Preferably the end 252 opposite the brake caliper 1 of the clamping arc 250 engages at least the pad holder 210 of the brake pad 200 on the reaction side. It further engages, preferably axially from the brake caliper 1, the cover 240, which is crossed by the pad spring 230 or by a part of the pad spring 230.

[00116] According to a variant, it is advantageous that the clamping arch 250 only axially engages the brake pad 200 on the reaction side and thus clamps radially, but is not fixed to the brake pad 200. This achieves good clamping radial brake pad 200 on the reaction side.

[00117] According to another variant, however, it is advantageous that the fixing arch 250 is also fixed to the brake pad 200 on the reaction side. This creates an easily maneuverable assembly unit, which facilitates insert changes.

[00118] According to a development of this variant, it is advantageous that the fixing arch 250 is non-releasably fixed to the brake pad 200 on the reaction side.

[00119] Thus, on the one hand, an easily maneuverable assembly unit is formed and, on the other hand, it is ensured that, in the event of a pad change, the clamping arch 250 (highly stressed as a result of a lot of braking) is replaced safely as well.

[00120] For release, only the fixing of the fixing arch 250 on the brake caliper 1 is released. Then the brake pad 200 on the reaction side is exchanged as a construction unit together with the clamping arch 250. Preferably, this construction unit advantageously also comprises the pad spring 230. And more preferably this construction unit also comprises the cover 240 of advantageous way.

[00121] The fastening arch 250 to the brake pad 220 on the reaction side can be secured in different ways, through a closure connection due to the shape or closure due to the material with the part of the brake pad 220 on the reaction side. of reaction. According to a variant - see Figure 16 - the pad holder 210 or the pad spring 230 is offered as said part (not shown). And also the 240 coverage - if any - could be that so-called part. This advantageous variant was realized in the drawings of Figures 1 to 15.

[00122] The fixing arch 250 can be connected to the cover 240 by fastening due to the material, so, for example, it can be welded directly or indirectly (through an intermediate piece, such as a pin). The fixing arch 250 may be screwed to the cover 240 or secured to the cover 240 with a rivet (not shown).

[00123] Alternatively, it is also advantageous for the cover 240 to have an integrally shaped part, such as an arm or several arms or even a circumferentially closed ring 245 (Figure 6), which is/are preferably configured integrally with it and with which the fixing arch 250 is non-releasably connected to the cover 240. Preferably, the ring 245 is crossed by the fixing arch 250 (Figure 4). Additionally, the fixing arc 250 can be firmly fixed to the ring 245, for example, by welding.

[00124] In a side view (see, for example, Figure 4) the fixing arc 250 can be configured staggered. This serves, among other things, to compensate for a height difference in relation to the brake caliper 1. This Z-shape can also be used for simple and uncomplicated attachment of the clamping bracket 250 to the brake caliper 1.

[00125] One end of the fixing arc 250, which is fixed to the brake caliper 1, can be fixed there in a different way. It is advantageous to fix this end with a pin 255 (Figures 1a, 9) in the brake caliper 1 with clasp due to the shape. For this purpose, the pin 255 passes through the openings 1e, which here are perforations, in two spacers 1f spaced apart on the brake caliper 1 and engages the fixing arch 250, the end of which 251 is on the brake caliper 1 between the lugs 1f. A T-shaped configuration of the end 251 ensures that the clamping arch 250 does not slip in an axial direction through the lugs 1f.

[00126] At both ends of the insert retention spring 230 - see again Figure 4 - there are slots 231, 232, which are crossed by splints or projections 213, 213 shaped in the insert holder 210, on the upper side of the insert holder 210.

[00127] For the preferably non-releasable connection of the pad retention spring 230 with the pad holder 210, cover 240 is provided, which, as can be seen especially in Figures 4 and 15, preferably has an almost rectangular cross-section, with two parallel legs 241, 242, which are connected to each other via a rib 243 above the tablet holder 210 and another rib 244 (which passes through an opening of the tablet holder 210).

[00128] More or less between the slots 231, 232 in the pad retention spring 3 is made a longitudinal slot 233, through which one of the legs 242 of the cover 240 is extended, which, like the opposite leg 241, abuts or almost touches an associated wide side of the insert holder 210.

[00129] As can still be clearly seen in Figure 5, the insert spring 230 is preferably wider or thicker than the axial thickness of the insert holder 210, so that the insert retaining spring 230 protrudes in the direction of the friction pad 220, while its other longitudinal edge is more or less flush with the rear side of the pad support 210. In Figure 5 it can also be seen that it rests against the leg 241 below the connecting rib 244, which stands parallel to rib 243.

[00130] Through a preferably closing connection due to the material, a release of the cover 240 without destruction is ruled out, whereby a secure fixation of the insert retention spring 230 is guaranteed. For this purpose, the cover 240 can also be fastened by means of the material in the pad retention spring 230 or in the pad holder 210.

[00131] Furthermore, the legs 241, 242 are preferably configured in the shape of a trapezoid in their basic contour, with the wide side being formed through the rib 243, while the connecting rib 244, which crosses the continuous hole 215 in the Insert holder 210 slidingly defines the narrow side. As already explained, the longitudinal slot 233, in relation to the longitudinal extension of the insert retention spring 230, is preferably arranged more or less in the center. Particularly preferably the slit is arranged exactly in the center (see also patent EP 1963702 B1 and patent EP 2255101 B1).

[00132] Preferably the cover 240 is pivotable radially outwards in a limited way on the insert holder 210. For this the cover 240 with the rib 244 passes through the continuous hole 215.

[00133] As the brake pad 220 on the reaction side does not change its position in the brake caliper 1 even with increasing wear, it is possible to configure the fixing arch 250 directly as a constructive unit with the brake pad 200 on the reaction side. For this purpose, cover 240 is especially suitable, which is thus extended to another hitherto unknown function - fixing the fixing arch - (Figures 4, 11 as well as 5 and 12). Thus, a particularly advantageous pad 200 is provided on the reaction side, which has a fixing arch 250 as a preferably integrated component, short and advantageously presenting a constructive form limited to the fixing function of this brake pad. Advantages to be mentioned are also simple assembly, reduced costs, fewer requests and the guarantee of correct assembly.

[00134] Therefore, it is advantageous to configure a clamping arch 250 with this brake pad as a constructive unit, which is replaced as a whole when changing the pad. This is simple and leads to a renewal of all elements to be exchanged in the "reaction side pad" construction unit (brake pad, pad spring, if applicable: cover and clamping arch).

[00135] While according to Figures 2 to 8 the fixing arc 250 passes through the ring 245 of the cover 240, in which it is preferably also fixed with a closure due to the material, according to Figures 9 to 15 it is envisaged to use a pin (collar pin, head pin or similar) 254 for fixing the fixing arch 250 to the cover 240 and consequently to the brake pad 200. The pin 250 passes through the fixing arch in the region of a perforation 253 (Figure 14) radially and is preferably welded to the cover 240 or otherwise secured thereto (e.g., by riveting, compression, etc.). The ring 245 may be formed from splints of the cover 240 and be configured circumferentially closed or non-circumferentially closed.

[00136] The fixing arch 250 can also be arranged directly on the insert spring 230 or on the insert holder 210 (the last mentioned variant is represented in Figure 16 by way of example).

[00137] The tablet holder 210 has, according to Figure 16, an opening 216, in which the end 252 pointing towards the holder 210 (this also means "a section that is close to the tablet holder 210") of the fixing arch 250 engages. The opening 216 can be configured as a blind hole or as a continuous opening. The other end 251 of the fixing arc 250 (or a region that is close to the brake caliper 1) may be fixed in or within the opening 1d (preferably in a non-releasable manner) by closure due to the shape and/or material. The end 251 of the fixing arc 250 which is close to the brake caliper 1 points towards the brake caliper 1 and is fixed there (preferably in a releasable way) by closure due to the shape and/or closure due to the material (in a manner not shown here, for example, similar to Figure 1a or 17). Additionally, a spring 256 may be provided in the fixing arch 250, which can be used (not shown here) for elastic support of this brake pad 210 in relation to a counter-support, such as the brake caliper 1.

[00138] Thus, the fixing arch 250 can engage, totally or partially, the insert spine plate or the insert support 210. Then the spring 256 is fixed on the fixing arch. Thus the clamping arch - as already mentioned above - together with the spring 256 is connected in such a way that it is not lost to the brake pad 200 on the reaction side. The pad retention spring is displaced or distanced from the brake pad 200. This offers the advantages described initially.

[00139] According to Figures 17a, 17b, 17c and 17d, the fixing arch 250 has a continuous opening 257 (e.g., a perforation) preferably parallel to the brake disc 2, to retain an end 251 of the fixing arch 250 which is fixed to the brake caliper 1 there with a pin or pin 255, which extends parallel to the plane of the brake disc 2. For this purpose the pin or pin 255 passes through the continuous opening 257 and the lugs 1f in the brake caliper. brake 1. The pin or pin 255 has, at one end, a head 255a outside the two lugs 1f and is secured with a fastening element 260 (here disc and splint) at its other end. A shape-based closing means, such as a shoulder 258, below, on the clamping arc, at the other end 252 of the clamping arc on the bracket 210 or on the insert spring 230, cooperates with a corresponding shape-shaped closure means on the bracket. of pad 210, so that the brake pad is fixed axially or radially. The end 251 of the clamping arc 250, which is fixed to the brake caliper 1, further engages axially in a recess 1g of the brake caliper 1, which additionally fixes the clamping arc 250 to the brake caliper.

[00140] A contour 2502 (a kind of projection) at the end 251 of the fixing arc 250 on the brake caliper 1 limits the twisting of the fixing arch 250 here preferably not connected to the brake pad 200 and ensures the maintenance of a contour of predetermined brake casing. In the previously mentioned variants this is also carried out via the end 251 of the fixing arch 250 on the brake caliper 1. Another contour 2501 (a downward projection) on the fixing arch, which is inserted into the recess 1g, facilitates the mounting of the brake arch. fastening 250, which has to be pressed against an insert spring 230, to insert the pin 255.

[00141] According to Figure 18, the fixing arch 250 is releasably fixed to the brake caliper 1 in a simple way with one or more screws 259, which are screwed into the brake caliper 1, for example, here in radial direction.

[00142] One or the continuous opening 257 or the continuous openings 257 for the pin or pin 255 for fixing or retaining the fixing arch 250 may have a circular or other cross-section, an angled one (depicted in Figures 19a, 19b; 20a , 20b). The pin may suitably be in the form of a plump pin or a flat rib (not shown here, which may be configured curved at one end or may have an angulation or an enlarged head so that it abuts on one side of the continuous opening and cannot slip through it). On the other side of the continuous opening it can be fixed with a splint or a nut over the threaded section or with another suitable means. Pin 255 in the form of a flat rib is inserted and secured through one or more continuous opening(s) 257 of the clamping arch 250 and one or more of the corresponding continuous opening(s) of the splint or lugs 1f on the brake caliper 1. This also means that a torsion-resistant fixation is implemented for the clamping bracket 250.

[00143] The fixing arch 250 can be produced differently. It can be configured as a stamped/flexible part (see, for example, Figure 19a (as a flat rib abutting the brake pad 200 with two lugs 261)) or Figure 20a (as a flat rib abutting perpendicularly on the brake pad 200) or, for example, as a casting or as a part produced in another way.

[00144] Below, the examples in Figures 21a, b and 22a-c are considered in more detail.

[00145] For wear recognition of wear of the brake pads or their friction pads 220 that occurs as a result of braking, a wear sensor (not shown here) is integrated into them. A corresponding signaling cable is integrated with the wear sensors (not shown here). This cable has at least one conductor, preferably at least one electrical conductor. Said at least one conductor may be surrounded by insulation and/or a cable jacket.

[00146] At least one of the signaling cables is seated completely crossing the opening 1d of the brake caliper 1 and (not noticeable here) led to a device for determining and possibly indicating brake pad wear of the disc brake. For this purpose, the signal cable is arranged and retained in a cable bridge 271. The cable bridge 271 passes through the opening 1d of the brake caliper 1 completely. Preferably it completely passes through the opening 1d in an axial direction parallel or substantially parallel to the axis of rotation of the brake disc.

[00147] Cable bridge 271 may consist of metal. Furthermore, it can advantageously be configured simply as a stamped/flexible part of a sheet of metal. However, it may consist of other material.

[00148] The cable bridge 271 preferably has a central rib section 272. This rib section 272 is configured straight here. It extends here, in the assembled state, parallel or substantially parallel to the axis of rotation of the brake disc D.

[00149] The rib section 272 preferably has, at its two ends opposite each other, first and second fastening means 273 and 274. These first and second fastening means 273, 274 of the cable retainer or cable bridge 271 serve for fixing the cable retainer 271 to first and second counter-fixing means 275, 276 corresponding to the brake caliper 1 - Figure 21 - or to a fastening element fixed to the brake caliper 1 - Figure 22.

[00150] The first and second fastening means 273 and 274 of the cable retainer or cable bridge 271 and the corresponding first and second counter-fastening means 275, 276 of the brake caliper 1 may be configured on one side of the opening 1d as a first substantially tolerance-free attachment or, on the other side of the opening 1d of the brake caliper 1, as a second attachment that acts with tolerance compensation.

[00151] For this the first and second fastening means 273, 274 according to a variant - realizable in a constructively simple way - can be configured as a circular hole 273 and a long hole 274 at the opposite ends of the cable retainer 271. The corresponding counter-fastening means 275, 276 may be configured, for example, advantageously and simply as screws 275, 276 or pins or the like of the brake caliper 1, which are fixed to the brake caliper 1, for example fixed in bores of the caliper brake 1.

[00152] When an end of the clamping arc 250 that is fastened by closure due to the shape in the brake caliper 1 is connected to a pin 255 (Figures 1a, 9; 21) in the brake caliper 1, this pin 255 fixed in the caliper brake 1 may pass through bore 276 - preferably the long hole for tolerance compensation. The long hole 276 can then move over the pin. The end of the clamping arc 250 with the perforation 276 is arranged as a flat washer between a pin head 255 and a thrust surface of the brake caliper 1. This clamping variant is constructively simple and economical, since a single means of fixing - pin 255 - is used twice.

[00153] The cross-section of the rib section 272 of the cable retainer 271, according to a preferred configuration, is preferably U-shaped. In this case, the closed side of the U preferably faces the brake pads 100, 200 , to provide protection against heat, which is radiated by the brake disc and brake pads. The signaling cable may be inserted into the U-shaped rib section 272 and fixed there. For this purpose, splints 277 can be configured in the rib section 272, which, after introducing the signaling cable 271 into the rib section 272, are encircled in such a way that the signaling cable, in some regions, is retained in the section of rib 272 fully or substantially circumferentially closed.

[00154] The rib section 272 can freely encompass the opening 1d. This means that the rib section 272 is attached only at the two ends - for example in the manner described previously to the brake caliper 1 and preferably not to the other elements of the disc brake.

[00155] The rib section 272 may, however, be fixed, optionally or alternatively (at one of its ends or centrally in the rib region 271) in the fixing arc 250 that does not completely cross the opening 1d, which only fixes one of the two tablets 100, 200.

[00156] For this, it is advantageous that another splint 278 of the rib section 272 is fixed to the insert retention arch 250 (see Figures 22a-c). This fixation can occur in different ways. Thus, according to a preferred variant, it may be such that the splint 278 is placed around a rib 262 in the fixing arch 250 and encompasses it. In this case it is further advantageous that the rib 272 projects as a kind of finger element axially from the end of the fixing arc 250, in which it radially fixes the brake pad associated with it. Thus, it is possible, in a simple way, for the fixing arch 250 and the rib section 271 to move in a limited way relative to each other, especially that they can tilt. Such relative movements can occur in the case of braking. The splint 278 can then only form the counter-fixing means 276. The fixing arch 250 is a fixed part to the brake caliper 1, so that the cable bridge 271 is thus fixed - indirectly - to the brake caliper 1.

[00157] The rib section 272 may be fixed to the fixing arch 250, but it may also be fixed in another way, for example, by means of at least one screw or a rivet.

[00158] In this sense - abstracting from the variant of Figure 22 - it is advantageous that the cable bridge 271 is fixed to the fixing arch 250, especially to the rib 262 of the fixing arch 250, by closing due to force and/or closing due to form. A force closure can be carried out, for example, by laterally clamping the cable bridge 272 onto the fixing arch 250 (not shown). In this case, a lateral - tangential - placement in the circumferential direction on the clamping arc 250 on a narrow side of the clamping arc 250 is especially possible.

[00159] A kind of cable bridge 272 is thus formed, which preferably assumes the function of a cable guide as well as thermal and mechanical protection. In this case the cable bridge 272 is fixedly connected (screw connection), as described here, to a part on the tension side in the brake caliper 1. On the reaction side a loose support is represented which acts to compensate tolerance in such a way, that the cable bridge is secured to the insert retaining bolt or pin 255 through a long hole. Thus the cable bridge 272 can compensate the clamp deformation well.

[00160] The fixation can, however, be represented in such a way that the pin or insert retention pin is configured as a fixed support and the clamping fixation on the other side of the opening 1d as a loose support.

[00161] The cable guide in cable bridge 272 is configured such that it is as far away from the brake disc as possible to keep the temperature load as small as possible. On the other hand, the cable guide is placed in such a way that it is in the shadow of the axial tie rods of the brake caliper 1, so that it is protected from foreign bodies (e.g. ice, dirt, stones) that are dragged by the wheel. This makes it possible to reduce the sheet thickness in the cable guide to a minimum.

[00162] In the description of Figures below in Figure 23 and following, concepts such as: top, bottom, left, right, front, back, etc., refer to the representation and position, given by way of example, chosen in the respective figures, of the brake support, the brake pad, the support projection, the bridge, the guide contour and the like. These concepts should not be understood as being restrictive, that is, across different or similar job positions these designations may change.

[00163] In Figure 23 with reference number 1001 there is designated a brake support for a pneumatically or electric motor actuated disc brake of a vehicle, especially a utility vehicle, especially in the manner of one or more of Figures 1 to 22 .

[00164] The brake bracket 1001 has a connection region 1002, which serves for attachment to a vehicle axle, for example, by bolting to an axial flange of a vehicle axle of the commercial vehicle (not shown here) .

[00165] Above the connection region 1001, a pad well is formed, which serves to receive and support at least one brake pad 100.

[00166] The brake support 1001 shown here then has two pad wells. The brake support 1001 is configured in such a way that it embraces a brake disc of the disc brake and thus, on both sides of the brake disc, a pad well is formed for receiving a brake pad 1009.

[00167] Each of the insert wells is formed through a support projection 1004, 1007 on the input side relative to a preferred direction of travel "to the front of the vehicle", a support projection 1005, 1008 on the exit side and a bridge connecting the input side support projection 1004, 1007 to the output side support projection 1005, 1008.

[00168] The support projections 1004, 1005 and the bridge 1003 then designate the tension side. Correspondingly, a support projection 1001 on the input side, a support projection 1008 on the output side and a bridge 1006 are formed on the reaction side of the brake support 1001.

[00169] In the continuation of the description, the configuration of the tablet well on the tension side is described in more detail.

[00170] The reaction side tablet well can then be configured in the same way. It is also possible to configure the reaction-side tablet well at least slightly different from the voltage-side tablet well.

[00171] The regions of the bridge 1003 that border the support projections 1004, 1005 form support surfaces 1031, 1032, which serve for radial support of the brake pad 9, with a lower side 1096 of the brake pad, in the introduced state, it abuts against the support surfaces 1031, 1032. The bridge 1006 on the reaction side of the brake support 1001 also has such support surfaces 1061, 1062.

[00172] On the upper side of the insert 1009 opposite the lower side 1096 an insert spring 1010 is preferably retained. The insert retaining spring 1010 is then preferably fixed to the outer edges of the upper side of an insert support plate 1091 of the insert brake nipples 1009 on retaining nipples 1098.

[00173] The support projections 1004, 1005 have a respective inner side 1041, 1051 facing the pad well, against which, in the assembled state of the brake pad, at least sections of the side surfaces 1092, 1093 of the plate rest. of pad 1091 from brake pad 1009, such as bearing surfaces 1097 shown in Figure 23.

[00174] On a side surface 1042, 1052 of the support projections 1004, 1005 opposite the brake disc, respective guide contours 1044, 1054 are arranged, which serve to guide the brake pad 1009 to an insertion position laterally relative to to the tablet well. The insertion position is designated as the position in which the brake pad 1009 is introduced into the pad well between the support projections 1004, 1005 axially to the vehicle axle (not shown) or to the brake disc axis.

[00175] These guide contours 1044, 1054 are shaped/configured preferably as material thickening of the support projections 1004, 1005 on the side surfaces 1042, 1052, of the support projections 1004, 1005, as shown in Figures 24 to 7.

[00176] It is thus made possible that a pad support plate 1091 is led longitudinally in the radial direction z of the axis of rotation of the brake disc along a side surface 1047, 1057 of a cross member of the support projection 1004, 1005, which plate, when radially introduced, is not moved exactly, but is offset laterally, meets the guide contour 1044, 1054 with a lower edge during radial movement in the z direction and is guided to its centralized position along this contour, until the brake pad 1009 rests on a mounting region 1033, as shown in Figure 3.

[00177] The mounting region 1033 defines an additional support surface of the respective support surfaces 1031, 1032, of the bridge regions 1003 adjacent to the support projections 1004, 1005, which is created to prevent displacement of the brake pad 1009 in the pad well too far in the direction of the axis of rotation of the brake disc.

[00178] Instead of forming the guide contours 1044, 1054 on the side surfaces of the support projections 1004, 1005, it is also possible, in principle, to attach these guide contours 1044, 1054 to the respective support projection as separate components, e.g. example, in the form of plates.

[00179] The side surfaces of the tension side 1042, 1052 of the support projections 1004, 1005 also have receiving perforations 1043, 1053, which serve for sliding request of a brake caliper not shown.

[00180] As further shown in Figures 1-5, the guide contours 1044, 1054 of the support projections 1004, 1005 of a tablet well are shaped running towards each other towards the bridge 1003.

[00181] Thus, the guide contours 1044, 1054 present two straight regions that are angled to each other, as can be seen quite well in Figures 23-25.

[00182] A first straight line region is aligned angled with respect to the introduction direction z and serves to guide the brake pad 1009 to its central position between the support projections 1004, 1005.

[00183] A second straight line region is aligned radially, that is, in the z direction, so that the brake pad 1009, after reaching the mounting region 1033, is insertable between the support projections 1004, 1005 axially to the axis of rotation of the brake disc in an input direction y.

[00184] In the brake support variant 1 shown in Figures 1-5, on the respective inner sides 1041, 1051 of the support projections 1004, 1005, projections 1045, 1055 are formed, which serve for radially fixing the brake pad 109 with correspondingly molded insert support plate 1091 with side recesses 1094.

[00185] Below the projections 1045, 1055 of the support projections 1004, 1005, a reception 1046, 1056 is formed for receiving a respective projection 1095 of the insert support plate 1091, with the guide contours 1044, 1054 ending in a respective side edge of the respective reception 1046, 1056. The height h2 of the projections 1095 then preferably corresponds to the height h1 of the receptions 1046, 1056 of the support projections 1004, 1005, so that the brake pad is fixed radially in the receptions 1046, 1056 .

[00186] In the alternative embodiment variant of a brake support 2100 shown in Figures 6 and 7, the guide contours 2144, 2154 are configured in the same way as previously described with the aid of the brake support 2100.

[00187] Essential difference of this brake support 2100 with respect to the previously described brake support are the internal surfaces 2141, 2151 - flat - of the support projections 2140, 2150, so that in the case of the brake support 2100 configured in such a way In this way, in addition to the direct insertion of the brake pad between the support projections 2140, 2150, a laterally offset insertion of the brake pad is also possible in a simple way, since the exact central alignment of the brake pad is simplified here through the guide contours 2144, 2154 and the mounting region 2131 on the support surfaces 2131, 2132 of the bridge 2130. Also the brake support 2100 is configured, in the embodiment shown here, in such a way that it engages above a brake disc (not shown), such that the support projections 2140, 2150 and the bridge 2130 form a pad well on the tension side and the support projections 2170, 2180 and the bridge 2160 form a pad well on the tension side. of reaction.

[00188] Preferably only the tension side support projections 2140, 2150, 2140, 2150 with the guide contours 2144, 2154, 2144, 2154 for guiding a brake pad can be configured in a laterally relative insertion position. to the tablet well.

[00189] However, the reaction side support projections 2170, 2180 are configured without such guide contours. Also the support surfaces 2161, 2162, 2161, 2162 of the reaction side bridges 2160, 2160 are configured in such a way that their widths in the direction of the axis of rotation of the brake disc correspond to the width of the support projections 2170, 2180 , 2170, 2180.

[00190] The invention is not restricted by the embodiment examples described above. It is modifiable within the scope of the attached claims in a different way. LIST OF REFERENCE NUMBERS 1 brake caliper 1a tension section 1b caliper spine 1c traction rod 1d opening 1e openings (perforations) 1f splints 1g 2 brake disc recess 2a brake disc rotation axis 3 brake support 4 cross member guide 11, 12 insert wells 11a, 11b; 12a, 12b support surfaces 11c; 12c pad well bottom 13, 14 and 15, 16 brake support projections 17, 18 back cut 100 brake pad 110 pad support 111, 112 side edges 113, 114 boss 115 retaining arch 116, 117 splints 120 casing friction 130 pad spring 131, 132 slot 133, 134 edges 200 brake pad 210 pad holder 211,212 side edges 213, 214 splint 215 continuous hole 216 opening 217 means of closure due to shape 220 friction lining 230 pad spring 231 , 232, 233 slots 240 cover 241, 242 leg 243 rib 244 connecting rib 245 ring 250 clamping arch 251 end 252 end drilling pin pin/pin spring continuous opening boss screws fastening element splint rib contour cable bridge cable section means fastening means counter-fixation splints brake support splint connection region bridge support surface support surface mounting region support projection inner side side surface receiving perforation guide contour receiving shoulder support projection inner side lateral surface receiving perforation contour of guide projection reception bridge support surface support surface support projection support projection pad support plate side surface side surface recess projection bottom edge abutment surface retaining nozzle pad retention spring brake support connection region bridge support surface support surface mounting region support projection inner side side surface receiving perforation guide contour support projection inner side side surface receiving perforation guide contour bridge support surface support surface support projection support projection projection height height of recess direction of rotation axis of rotation

Claims (28)

1. Disc brake (100) for a commercial vehicle, characterized by the fact that it has a) a brake caliper (1) that engages with a brake disc (2), which is arranged on a brake support (3) fixed and with a tensioning device for tensioning the brake, b) two brake pads (100, 200), which each have a pad support (110, 210) and a friction lining (120, 220) fixed in said pad holder and of which one, such as a brake pad (100) on the tension side, can be compressed by means of the tensioning device against the brake disc (2) on one side of the brake disc (2) and of which the other, such as the brake pad (200) of the reaction side, is disposed on the opposite side of the brake disc (2) and which are inserted into a pad well (11, 12) of the brake support ( 3), c) wherein the brake caliper has a central caliper opening (1d) on the brake disc (2), through which the two brake pads (100, 200) can be inserted into the respective pad well (11, 12) of the brake support (3), d) where a fixing arch (250) is provided, which is configured in such a way that it radially fixes only the brake pad (100, 200) of the reaction side in its pad well (11, 12) in the brake support, the clamping arch (250) being retained in the brake caliper (1) with its end opposite the brake pad (200), and e) whereby the brake pad (100) on the tension side is fixed in its pad well radially in the brake support by means of a fastener due to the shape. 2. Disc brake according to claim 1, characterized in that the brake pad (100) on the tension side has a pad spring (130), which is fixed to the brake pad (100) on the tension side. of tension and has ends (133, 134) that resiliently abut the brake support projections (13, 14) of the brake support (3). 3. Disc brake according to claim 1 or 2, characterized in that the fixing arc (250) engages the brake pad (200) on the reaction side. 4. Disc brake according to any one of claims 1 to 3, characterized in that the fixing arc (250) engages the brake pad (200) on the reaction side totally or partially, axially parallel to the disc brake (2). 5. Disc brake according to any one of claims 1 to 4, characterized in that the fixing arc (250) is, with its end opposite the brake pad (200) on the reaction side, releasably fixed on the brake caliper. 6. Disc brake according to any one of the preceding claims, characterized in that the fixing arc (250) is fixed to the brake pad (200) on the reaction side. 7. Disc brake according to claim 6, characterized in that the fixing arch (250) is non-releasably fixed to a part of the brake pad (200) on the reaction side. 8. Disc brake according to any one of the preceding claims, characterized by the fact that the pad well of the reaction side brake pad is formed in the brake bracket or in the brake caliper, and by the fact that the well of the tension side brake pad pad is formed in the brake bracket (3). 9. Disc brake according to claim 7 or 8, characterized in that the fixing arc (250) is fixed to a cover (240) and/or a pad spring (230) of the brake pad (200 ) on the reaction side. 10. Disc brake according to claim 9, characterized in that the pad spring (230) of the brake pad on the reaction side passes through the cover (240) completely or partially. 11. Disc brake according to claim 9 or 10, characterized in that the pad spring (230) on the reaction side is formed integrally with the cover (240) or that said pad spring of the brake pad on the reaction side it is cohesively connected to the cover (240). 12. Disc brake according to any one of claims 8 to 10, characterized by the fact that the fixing arc (250) is connected to the cover (240) by closure due to the shape. 13. Disc brake according to any one of the preceding claims, characterized by the fact that the fixing arch (250) is releasably or non-releasably fixed to the brake caliper (1) or is formed integrally with it. 14. Disc brake according to any one of the preceding claims, characterized in that the brake pad (100) on the tension side is fixed radially to the brake support (3) by means of projections (17, 18) on the pad support (210), whose projections engage corresponding rear cuts (17, 18) of the brake support. 15. Disc brake according to any one of the preceding claims, with a brake support, characterized in that the brake support (1001) has the following: - a connection region (1002, 2120) for fixing to a vehicle axle, - the pad well for receiving and supporting at least the brake pad (100) on the tension side, - the pad well being formed through a support projection (1004, 2140) of the input side, a support projection (1005, 2150) on the output side and a bridge (1003, 2130) connecting the support projection (1004, 10140) on the input side and the support projection (1105, 2150) on the output side, - regions of the bridge adjacent to the support projections form support surfaces (1031, 1032, 2131, 2132) for radial support of at least one brake pad (100) on the tension side, - where , on a side surface (1042, 1052, 10142, 2152) of the support projections, respective guide contours (1044, 1054, 2144, 2154) are arranged for guiding the brake pad (100) to an insertion position laterally relative to to the pad well, in which the brake pad (100) can be introduced into the pad well between the support projections axially to the vehicle axle. 16. Disc brake according to claim 15, characterized in that the support surfaces for radial support of the brake pad (100) on the tension side are laterally enlarged in a mounting region to limit the sliding movement of the pad brake pad on the tension side to the insertion position laterally in relation to the pad well. 17. Disc brake according to claim 15 or 16, characterized in that the guide contours (10044, 10054, 2144, 2154) are formed integrally on the side surfaces (42, 52, 142, 152) of the support as material thickening of the support projections (1004, 1005, 2140, 2150). 18. Disc brake according to claim 17, characterized in that the guide contours of the support projections (1004, 1005, 2140, 2150) of the pad well are shaped so as to converge towards each other in the direction from the bridge (1003, 2130). 19. Disc brake according to claim 17 or 18, characterized in that the guide contours each have at least one straight guide region. 20. Disc brake according to any one of claims 15 to 19, characterized in that a first straight guide region is aligned at an angle with the plane of the inner side (1041, 1051) of the support projections (1004 , 1005) and a second straight line guide region lies in the plane of the inner side (1041, 1051) of the respective support projection (1004, 1005). 21. Disc brake according to any one of claims 14 to 20, characterized by the fact that on the respective internal sides (1041, 1051) of the support projections (1004, 1005) projections (1045, 1055) are integrally formed, for radial attachment of brake pad (100, 1009) with pad support plate (1091) molded accordingly in side recesses (1094). 22. Disc brake according to claim 21, characterized by the fact that below the projections (1045, 1055) there is integrally formed, in each case, a reception (1046, 1056) for receiving a respective projection (1095) of the insert support plate (1091), the guide contours (1044, 1054) terminating, in each case, at a side edge of the respective reception (1046, 1056). 23. Disc brake according to any one of the preceding claims, characterized in that the brake caliper is designed as a sliding caliper. 24. Brake pad assembly with a reaction-side brake pad, a tension-side brake pad (100) and a pad spring, characterized in that the tension-side brake pad (100) is configured to be fixed radially to a brake support by means of at least one shape-enclosing element in a pad support (110), wherein the pad spring (130) is fixed to the brake pad (100) on the tension side and the pad spring (130) having ends (133, 134) which are configured to resiliently abut brake support projections (13, 14) of an associated brake support (3), and that one of the tension-side brake pad and the reaction-side brake pad (200) is configured to interact with a clamping arc (250), said clamping arc (250) being configured in such a way mode, that it radially fixes only one of the two brake pads (100, 200) in its pad well (11, 12) in a disc brake. 25. Brake pad assembly according to claim 24, characterized in that the brake pad (100) on the tension side is fixed radially to the brake support (200) by means of lugs (113, 114) on the insert holder (210). 26. Brake pad assembly according to claim 24 or 25, characterized in that it further includes the fixing arch (250), which is designed to radially fix only one of the two brake pads (100, 200) into your pad well (11, 12) on the disc brake. 27. Brake pad assembly according to any one of claims 24 to 26, characterized in that the clamping arc (250) is fixed to the brake pad (200) on the reaction side or embraces or engages said pad brake valve (200) on the reaction side. 28. Method for mounting brake pads on the disc brake as defined in any one of claims 1 to 3, characterized in that: a) the brake pad (200) on the reaction side is inserted radially through the brake opening caliper (1d) of the brake caliper (1) in its pad well (11, 12) in the brake support (3), said brake pad on the reaction side then being fixed radially by means of the clamping arch (250) which is arranged in the brake caliper (1); b) the brake pad (100) on the tension side is first introduced radially into the disc brake through the caliper opening (1d) of the brake caliper (1) and is then moved through an axial movement to a position in the well of pad (11,12), assigned to the same, of the brake support (3), in which said brake pad on the tension side is fixed radially by means of a clasp due to the shape between the brake pad (100) on the tension side and the brake support (3), c) furthermore, the ends of a pad spring (130), which is fixed to the brake pad (100) on the tension side, are supported on the tension side projections. brake support (13, 14) of the brake support (3), so that they resiliently abut these brake support projections (13, 14) of the brake support (3).