DE102011120438A1 - Brake disk, particularly for motor vehicle, particular commercial vehicle, has screw element, which is plugged into receiving opening in radial direction from outer side, and is screwed with connecting element - Google Patents

Abstract

The brake disk (10) has a friction ring (16) which partially surrounds a connecting element (12), particularly a brake disk chamber, a wheel flange or a wheel hub. A safety element (32) has a screw element with an external thread. The screw element is plugged into a receiving opening (42) in a radial direction from an outer side. The screw element is screwed with the connecting element by the external thread of the friction ring.

Description

The invention relates to a brake disc, in particular for a motor vehicle, specified in the preamble of claim 1. Art.

The DE 202 13 950 U1 discloses a wheel hub brake disc assembly for trucks having an axle body and a wheel hub rotatably supported relative to the axle body. Further, a wheel flange is provided, which is connected to the wheel hub or integrated with this. The wheel hub disc assembly further includes a unit consisting of a flat brake disc and a brake disc connection port, which is configured in at least two parts, wherein a circumferential decoupling portion is disposed within the unit between the brake disc and the disc connection pinion. The Bremsscheibenverbindungstorus begins on the inside of the brake disc and ends with a located at a distance from the inside of the brake disc in the rim mounting position Torusflansch. In addition, the Torusflansch is connected to the holding head ring of the Radflanschabschnitts.

The DE 101 25 113 A1 discloses a brake unit with an internally ventilated brake disc and a cup-shaped holding part, which are integrally connected to one another. The brake disc comprises two friction rings, which are connected to one another via webs and / or knobs and enclose ventilation channels. It is provided that the brake disk and the holding part are connected to each other by finger-like connecting pieces, wherein the connecting pieces extend from the holding part alternately to the inner and the outer friction ring.

From the WO 02/33280 A1 is known a brake disc comprising a brake disc hub and a friction ring. The brake disk cup and the friction ring are arranged coaxially with each other and connected to each other by means of connecting elements. The friction ring and the brake disk pot have respective, corresponding recesses in which engage the connecting elements.

The EP 0 914 483 A1 discloses a brake disc, in particular for rail vehicles, with a hub body, a friction ring surrounding this body and distributed over the circumference arranged, in each case in alignment, radial bores of the hub body and the friction ring engaging clamping sleeves. The clamping sleeves are secured by screws in their axial position. It is provided that in each case an end portion of the clamping sleeves are radially spreadable by means of an attacking on the inner wall, tensioned by the screw conical device.

Of the US Pat. No. 6,446,765 B1 An axial securing device is known to be known, which serves to axially secure a friction ring on a wheel hub of a vehicle. The friction ring has the same axis of rotation as the wheel hub and comprises radially extending air ducts, which are open on both sides and are arranged evenly distributed. The wheel hub has axial guide means which cooperate with recesses to secure the friction ring.

From the WO 2010/028746 A1 is a brake disc with a brake disc hub and a radially connected via a positive connection with this friction ring known. The friction ring comprises two friction ring halves connected via spacer means, between which air channels of an inner ventilation arrangement are arranged. It is provided that the positive connection comprises only on one of the friction ring halves disposed inner peripheral circumferential toothing, which is engageable with a complementary, the brake disc hub outside circumferentially encircling teeth, wherein axially adjacent to the friction ring circumferential toothing on the inner circumference of the friction ring at least one Passage opening is provided to the inner ventilation arrangement.

The WO 2009/015786 A1 discloses a generic disc brake, especially for a motor vehicle. The disc brake comprises a brake disc and a wheel hub and a friction ring, which are connected radially by a positive connection and axially by at least one securing element firmly together. It is provided that the at least one axial securing element is arranged in a receiving opening extending radially within the friction ring, wherein the friction ring in the region of the receiving opening is radially movable relative to the securing element.

Due to the positive connection, a decoupling or a separation of the friction ring is shown by the wheel hub. By this decoupling the brake disk shield is reduced, whereby the risk of cracking on surfaces of the brake disc can be kept at least low. Circumferential forces or torques are transmitted between the wheel hub and the friction ring via the interlocking connection.

It has been shown that undesirable relative positions between the friction ring and the wheel hub can occur, in particular due to the production of the positive connection, if no corresponding countermeasures are taken.

It is therefore an object of the present invention, a brake disc of the aforementioned To develop such a way that at least almost always a desired relative position between the friction ring and the wheel hub or a connecting element of the brake disc is guaranteed.

This object is achieved by a brake disc having the features of patent claim 1. Advantageous embodiments with expedient and non-trivial developments of the invention are specified in the remaining claims.

Such a brake disk, in particular for a motor vehicle, comprises a friction ring, which can be connected to a connecting element radially by a positive connection, wherein the friction ring surrounds the connecting element in the state connected to the connecting element on the outer peripheral side at least in regions. The transmission of the torque from the brake disc to the connecting element via the positive connection. For this purpose, the friction ring comprises, for example, a positive locking element of the positive connection. This can be for example a toothing. For axial connection of the friction ring with the connecting element, at least one securing element is provided which is accommodated in a receiving opening extending radially inside the friction ring.

The connecting element establishes, indirectly or directly, the connection of the friction ring to the axle of the vehicle. The connecting element can be configured, for example, as a brake disk pot, as a wheel flange or as a wheel hub.

According to the invention, the securing element comprises a screw element which has an external thread. The screw is inserted in the radial direction from outside to inside the receiving opening. By means of the external thread of the screw the friction ring is bolted to the connecting element. Between the securing element and the friction ring at least one on the one hand on the securing element and on the other hand on the friction ring spring-mounted spring element is arranged, by means of which the friction ring is movable relative to the securing element.

In the connected to the connecting element state of the friction ring can be done in the circumferential direction between the friction ring and the connecting element, in particular via the positive connection, a force transmission, so that between these torques can be transmitted. For example, the motor vehicle can be braked via the friction ring and via the connecting element connected on the one hand with a wheel and on the other hand with a drive component of the motor vehicle. The positive connection is formed, for example, by the form-fitting element of the friction ring on the one hand and on the other hand by another positive locking element of the connecting element. This may be a splined connection and / or a toothing.

Tolerances, which are in particular manufacturing and / or processing-related, results between the friction ring and the connecting element or between the interlocking elements in their interconnected state, a gap or a game (air game). For this reason, a game (air clearance) is constructively provided between the friction ring and the axial fixation by the securing element. Although this game allows the friction ring axial mobility relative to the securing element and thus relative to the connecting element. However, this game also causes a defined and unique starting position, a so-called zero position, of the friction ring relative to the securing element and thus relative to the connecting element is not possible.

In order to ensure a defined and unique starting position of the friction ring and the friction ring to move back even after a movement desselbigen relative to the securing element and thus relative to the connecting element in the desired starting position, the spring element is provided. If the friction ring is possibly moved during a braking operation relative to the securing element and thus relative to the connecting element, in particular displaced, then the friction ring exerts a force or forces on the spring element. Due to the resilient action of the spring element of the friction ring is moved back to its initial position after completion of the braking process. Thus, at least almost always the desired starting position of the friction ring is ensured relative to the connecting element, and in a simple, cost and space-saving manner.

In addition, it is possible in the brake disc according to the invention, the risk of cracking at least one surface of the brake disc at least to keep low because the friction ring and the connecting element via the positive connection are decoupled from each other to connect.

The brake disc according to the invention also has a very simple and therefore time- and cost-effective installation, since the screw of the fuse element inserted in a simple manner in the radial direction from outside to inside the receiving opening and so the friction ring with the connecting element can be easily screwed.

In an advantageous embodiment of the invention, the screw on the external thread and a corresponding internal thread of Connecting element screwed directly into the connecting element. As a result, a firm connection between the friction ring and the connecting element is ensured. In addition, the brake disc according to the invention thereby has only a very small number of parts and thus a low weight and low costs.

In a further embodiment of the invention, the screw penetrates a corresponding through opening of the connecting element and is screwed via the external thread and a corresponding internal thread of a counter element with the counter element supported on the counter element. In other words, the screw is countered by means of the counter element, so that the friction ring is clamped together with the connecting element by means of the screw and the counter element and thereby firmly connected. This also allows a very simple and thus time and cost assembly of the brake disc according to the invention.

To realize a particularly low number of parts and a small space requirement, the spring element is supported on the one hand directly on the screw.

Advantageously, the friction ring in the region of the receiving opening is radially movable relative to the securing element. As a result, occurring due to an uneven temperature distribution shielding the brake disc or the friction ring can be avoided. Due to the radial movability, the friction ring can thus expand freely in the axial direction with a corresponding temperature distribution, without corresponding forces being introduced into the friction ring by the securing element, which could lead to a shielding or deformation-and consequently to a cracking. Due to the avoided or at least very low brake disk shielding and thermal stresses, the brake disk or the friction ring does not tend to crack so quickly, as a result of which an overall greater service life of the brake disk and the brake linings or the friction ring can be achieved.

As a result, in particular, the problem is avoided that when unilaterally connected brake discs as a result of unequal temperature distributions a shielding of the friction ring and the brake disc can occur in total. Accompanying stresses and resulting cracks, so-called hot cracks, on the surface of the brake disc, in particular of the friction ring, can thus be avoided or at least minimized.

In a further advantageous embodiment, the spring element is arranged in the circumferential direction and / or in the axial direction between the securing elements and the friction ring. Thus, the spring element can be particularly advantageous on the one hand to the backup element and on the other hand supported on the friction ring and thus quickly move the friction ring back to its defined starting position, in particular push back. In addition, in particular the radial space requirement of the brake disc according to the invention can be kept low.

Preferably, the friction ring is movable by means of the spring element in the axial direction relative to the securing element. In other words, at least one force of the spring element acts at least substantially in the axial direction, so that the friction ring can be moved back into its initial position after the end of the braking process by means of this force in the axial direction. As a result of the above-described game (air game) it comes in a braking operation in particular to an axial movement, in particular displacement of the friction ring relative to the securing element and thus relative to the connecting element. This axial displacement can be compensated after completion of the braking process by the friction ring is moved back to its original position by means of the spring member in the axial direction.

In a further advantageous embodiment of the invention, the securing element comprises a screw and a corresponding sleeve, which is fastened by means of the screw on the connecting element and which surrounds the outside circumference of the screw, wherein the spring element circumferentially surrounding the sleeve at least partially, in particular completely circumferentially surrounds the outside. Here, the fuse element allows a simple and thus time and cost assembly or connection of the friction ring with the connecting element. In addition, such a sleeve allow the previously described radial mobility of the friction ring relative to the securing element in a simple manner.

The spring element comprises, for example, a hollow cylindrical support body with an at least substantially circular base surface on which at least one spring arm, in particular a plurality of spring arms, of the spring element are resiliently held. In this case, the support body and the at least one spring arm are preferably formed integrally with one another and, for example, made of metal. The support body is arranged in an outer peripheral region of the sleeve on the sleeve, so that the spring arms are supported on the one hand on the outer peripheral region of the sleeve on this and on the other hand on the friction ring in the receiving opening. If the friction ring, for example, axially displaced during a braking operation, so he exerts a force on the spring arms. Due to the spring effect the spring arms of the spring element, the friction ring is moved back to its initial position or pushed back after completion of the braking process. By this configuration and arrangement of the spring element on the sleeve, the desired effect of the spring element is shown particularly space-saving.

The brake disc according to the invention may comprise the connecting element, wherein the connecting element is at least partially surrounded on the outer peripheral side of the friction ring. In this case, the connecting element is connected to the friction ring radially by the positive connection and axially by the at least one in the radially extending inside the friction ring receiving opening fuse element is connected.

The connecting element is designed, for example, as a brake disk cup or as a flange, in particular as a disk flange or as a wheel flange, or as a hub, in particular as a wheel hub. This means that the brake disc can be used readily in both passenger cars, commercial vehicles and other motor vehicle applications and allows the advantageous defined positioning of the friction ring relative to the connecting element.

Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing. The features and feature combinations mentioned above in the description as well as the features and feature combinations mentioned below in the description of the figures and / or in the figures alone can be used not only in the respectively specified combination but also in other combinations or in isolation, without the scope of To leave invention.

The drawing shows in:

1 a schematic and partially sectioned perspective view of a brake disc for a motor vehicle, in particular a commercial vehicle, with a friction ring and with a connecting element in the form of a wheel flange which are axially interconnected by means of a securing device, wherein the securing device comprises a plurality of securing elements which in respective receiving openings the friction ring are received and between which and the securing element on the one hand on the respective securing elements and on the other hand on the friction ring resiliently supported spring element are arranged, by means of which the friction ring is movable relative to the securing elements;

2 Sectionally a schematic sectional view of the brake disc according to 1 ;

3 a fragmentary sectional view of a further embodiment of the brake disc according to the 1 and 2 ;

4 a section of a further schematic sectional view of the brake disc according to the 1 to 3 ;

5 a section of a further schematic sectional view of the brake disc according to the 1 to 4 ;

6 a schematic side view of a threaded sleeve of the securing device of the brake disc according to 3 ;

7 a schematic side view of another embodiment of the threaded sleeve according to 6 ;

8th a schematic perspective view of a clamping sleeve of the securing device according to the 1 to 5 , which with the threaded sleeves of the 6 and 7 is usable;

9 a further schematic perspective view of the clamping sleeve according to 8th ;

10 a schematic side view of the threaded sleeve according to 6 on which outer peripheral side the clamping sleeve according to the 8th and 9 is arranged; and

11 a schematic perspective view of a threaded bolt of the securing device according to the 1 to 5 ;

12 a schematic and partially sectioned perspective view of a brake disc;

13 a schematic perspective view of a further embodiment of the brake disc according to FIG 1 ;

14a -B each partially a schematic sectional view of the brake disc according to 13 ;

15 a schematic perspective view of another embodiment of the securing element of the securing device according to 1 , which the brake disc according to 13 - 14b assigned;

16a Figure b is a fragmentary sectional view of another Embodiment of the brake disc according to the 13 to 14b ; and

17a B each show a schematic perspective view of a further embodiment of the securing element according to FIG 15 , which to the brake disc according to 16a -B belongs.

The 1 shows a brake disc 10 for a motor vehicle, in particular a commercial vehicle. The brake disc 10 includes a wheel flange 12 that has a plurality of through holes 14 includes. About the passage openings 14 can the wheel flange 12 and thus the brake disc 10 be connected to a drive component of the motor vehicle and a wheel desselbigen.

The brake disc 10 further includes a friction ring 16 , which acts as the connecting element wheel flange 12 The outer circumference surrounds at least partially. In other words, the wheel flange 12 a shaft part, while the friction ring 16 represents a hub part. Here are the wheel flange 12 and the friction ring 16 connected in the manner of a shaft-hub connection. For the radial connection of the wheel flange 12 with the friction ring 16 is a positive connection 18 intended. The positive connection 18 comprises a first positive locking element 20 with which the friction ring 16 is provided. The positive connection 18 further comprises a second positive locking element 22 with which the wheel flange 12 is provided. In the form-locking elements 20 . 22 the positive connection 18 These are, for example, respective toothings or also splined shaft connections. About the radial form-locking elements 20 . 22 are the wheel flange 12 and the friction ring 16 connected in the radial direction or in the circumferential direction, so that between the wheel flange 12 and the friction ring 16 Circumferential forces or torques can be transmitted. So the moving car can be braked.

The friction ring preferably has air ducts or cooling ducts of an inner ventilation arrangement. The air ducts or cooling channels terminate outside the region of the form-locking elements 20 . 22 the positive connection 18 , The positive locking elements 20 . 22 are designed in particular as a toothing. For example, the friction ring on two halves in which the one friction ring half 24 . 26 with at least one positive locking element 20 . 22 the positive connection 18 is provided and the other half has the open ends of the air ducts.

Likewise, embodiments are possible in which the area of the form-locking elements 20 . 22 wider than the area with the cooling channels 61 , Such a design shows 12 with trained as a toothing positive locking elements 20 . 22 and cooling channel openings 60 , Here, the form-fitting connections are sufficient 18 or positive locking elements 20 . 22 over the friction ring half underneath 24 out. The cooling channel openings 60 are each between two adjacent teeth.

Again 1 can be seen, includes the friction ring 16 a first friction ring half 24 and a second friction ring half 26 , which about spacers 28 are arranged at a distance from each other and connected to each other. It is only the first half of the friction ring 24 with the positive-locking element 20 Mistake. The second friction ring half 26 is not provided with a positive locking element. Preferably, axially adjacent to the first friction ring half 24 circumferential toothing or the first positive locking element 20 on the inner circumference of the friction ring 16 at least one passage opening provided to an inner ventilation arrangement. The inner ventilation arrangement comprises air passages between the friction ring halves 24 . 26 are arranged. This is the brake disc 10 as internally ventilated brake disc 10 trained, which can provide particularly high braking performance even at relatively high loads.

For the axial connection of the wheel flange 12 with the friction ring 16 is a safety device 30 provided, which a plurality of securing elements 32 includes. The security elements 32 are in the circumferential direction of the friction ring 16 distributed, in particular evenly distributed, arranged. Like that 2 to 11 can be seen, comprises such a fuse element 32 a threaded sleeve 34 and a threaded bolt 36 , To the security elements 32 corresponds in each case a spring element 38 the safety device 30 , In other words, the axial fixation of the friction ring takes place 16 on the wheel flange 12 by means of the threaded sleeves 34 , the threaded bolt 36 and the spring elements 38 , which are also referred to as clamping sleeves.

For this purpose are in each case to the security elements 32 corresponding teeth of the teeth or the form-fitting elements 20 . 22 recesses 40 intended. The friction ring 16 points to the security elements 32 respectively corresponding receiving openings 42 which are presently designed as passage openings and extend at least substantially in the radial direction. About these receiving openings 42 can the threaded sleeves 34 through the friction ring 16 through and into the respective recesses 40 be inserted in the radial direction from the outside.

Accordingly, the wheel flange 12 respective corresponding passage openings 44 on, over which the respective threaded bolt 36 can be inserted in the radial direction from the inside. The threaded sleeves 34 in this case have respective internal thread, which to respective external threads of the threaded bolt 36 correspond. About the respective internal thread and the respective external thread, the threaded sleeves 34 with the threaded bolt 36 be bolted together. The threaded bolts 36 each include a head 46 , which is on a first page 48 on the wheel flange 12 is supported. Corresponding to the threaded sleeves 34 on a respective second page 50 supported on the wheel flange, so that thereby the securing elements 32 and about this the friction ring 16 with the wheel flange 12 connected is.

The support of the threaded sleeves 34 on the second page 50 at the wheel flange 12 is in the 4 represented by a region A. The area A is particularly easy to remove, as the threaded sleeve 34 in the recesses 40 is plugged in.

It is preferably provided that the friction ring 16 in the area of the receiving openings 42 relative to the security elements 32 is radially movable. In this case, occurring due to an uneven temperature distribution shielding the brake disc 10 or the friction ring 16 be avoided. Due to the radial mobility of the friction ring 16 at a corresponding temperature distribution expand freely in the anal direction without the fuse elements 32 corresponding forces in the friction ring 16 be registered, which could lead to a shielding or deformation and a resulting cracking.

For screwing the threaded sleeves 34 with the threaded bolt 36 act the heads 46 For example, as anti-rotation, so that the threaded bolt 36 when screwing can not rotate undesirably. The threaded sleeves 34 have respective tool attacks 52 on which they are relative to the threaded bolt 36 twisted and thereby with the threaded bolt 36 can be screwed. According to the 1 . 2 and 7 is the tool attack 52 as external serration, in particular as external hexagon formed. According to the 3 . 6 , and 10 is the tool attack 52 For example, designed as a Innenvielzahn, in particular as hexagon socket, Torx or the like. About the tool attack 52 can the threaded sleeves 34 interact with a tool, making it particularly tight with the threaded bolt 36 can be screwed.

For example, as a result of machining tolerances of the teeth or the form-fitting elements 20 . 22 arises between the friction ring 16 and the wheel flange 12 or between the positive-locking elements 20 . 22 an air game. For this reason, advantageously between the friction ring 16 and the axial fixation by the securing elements 32 structurally also provided a respective air game. Although this clearance allows the friction ring 16 an axial mobility relative to the securing elements 32 and with it to the wheel flange 12 , however, prevents a defined and unambiguous starting position, a so-called zero position, of the friction ring 16 relative to the security elements 32 and thus relative to the wheel flange 12 , Now to a clear and defined starting position of the friction ring 16 to ensure and this move back after a, for example, axial displacement back to the starting position, includes the safety device 30 the respective, to the fuse elements 32 corresponding spring elements 38 (Collets).

The clamping sleeves are also in the receiving openings 42 used and outside circumference on the respective threaded sleeves 34 arranged. In other words, the respective threaded sleeves 34 partially in the spring elements 38 added.

As in particular the 8th and 9 can be seen, include the spring elements 38 a respective body 54 to which a plurality of spring arms 56 are held resiliently. The basic body is preferred 54 and the spring arms 56 formed integrally with each other. It can be provided that the spring elements 38 at least substantially formed of metal, to effect high spring forces.

Based on 9 is recognizable that the main body 54 in the axial extension direction (which is the radial direction of the brake disc 10 as a whole) is at least partially, in particular continuously, slotted. This allows the spring elements 38 compressed in the circumferential direction with reduction of its outer circumference, in the receiving openings 42 inserted and jammed with the friction ring, whereby a particularly good deadlock is ensured. Here, the spring arms are based 56 which partially in the radial direction of the spring elements 38 towards the outside, ie to the friction ring 16 are arched, on the one hand on the friction ring 16 , in particular at a respective the receiving openings 42 limiting wall of the friction ring 16 and on the other hand to the respective threaded sleeves 34 from.

For receiving the spring elements 38 include the threaded sleeves 34 respective rejuvenations 58 what a field B in the 7 is clarified. So can the spring elements 38 especially space-saving, simple and therefore time and cost on the respective threaded sleeves 34 be plugged.

Should during a braking process of the motor vehicle, the friction ring 16 in particular axially relative to the securing elements 32 be moved so exercises the friction ring 16 on the spring arms 56 a power out. Due to the spring effect of the spring arms 56 the respective clamping sleeves is the friction ring 16 after completion of the braking process pushed back to its original position and takes its desired and defined relative position to the wheel flange 12 one.

Instead of the wheel flange 12 can also be provided a wheel hub, a brake disk cup or the like connecting element, with which the friction ring 16 advantageously by means of the securing device 30 is axially connected.

To reduce the risk of corrosion of the brake disc 10 To keep particularly low, it can be provided that at least one of the threaded sleeves 34 and / or at least one of the spring elements 38 and / or at least one of the threaded bolts 36 is provided with a coating, in particular a corrosion-preventing or corrosion-inhibiting coating. Alternatively or additionally, it can be provided that at least one of the threaded sleeves 34 and / or at least one of the spring elements 38 and / or at least one of the threaded bolts 36 at least substantially formed of a stainless steel to minimize the risk of corrosion. Alternatively or additionally, the positive-locking elements 20 . 22 be provided with a corresponding, corrosion-preventing or -hindernden coating.

A method of attaching the friction ring 16 on the wheel flange 12 can by means of the safety device 30 be carried out particularly time and cost. For this purpose, the form-locking elements are first 20 . 22 spent in operative connection with each other. Then, as described, the threaded sleeves 34 and the threaded bolts 36 in the receiving openings 42 or the passage openings 44 arranged and inserted through and bolted together. Before time, the spring elements 38 on the threaded sleeves 34 plugged so that these together as a modular component in the receiving openings 42 can be arranged.

The brake disc 10 also allows a particularly time-consuming and cost-effective installation, since the threaded sleeves 34 with the spring elements 38 in the friction ring 16 pre-assembled and as pre-assembled module component with the wheel flange 12 can be connected.

The 13 to 14b show a further embodiment of the brake disc 10 , where only the wheel flange 12 is shown. The safety device 30 now includes a plurality of fuse elements 32 , which in turn each only a threaded bolt 62 include.

As in particular the 14a to 15 it can be seen, the threaded bolt 62 an external thread 64 on. The wheel flange 12 points with the threaded bolt 62 the fuse element 32 corresponding screw-in openings 66 with with the external threads 64 corresponding internal threads 68 on.

For the axial connection of the wheel flange 12 with the friction ring 16 are now the threaded bolts 62 in the radial direction from outside to inside in the corresponding receiving openings 42 plugged in and over the external thread 64 and the internal threads 68 directly into the wheel flange 12 screwed. This is a firm connection of the friction ring 16 with the wheel flange 12 realized. Furthermore, the connection of the friction ring 16 with the wheel flange 12 be carried out in a particularly simple and time-consuming and cost-effective manner.

The spring elements 38 are now on the one hand on the friction ring 16 and on the other hand directly to the threaded bolt 62 resiliently supported. In addition, the threaded bolts 62 respective tool attacks 70 on, over which the threaded bolt 62 firmly in the internal thread 68 can be screwed. In the tool attack 70 this is an external hexagon. It is understood, however, that other tool attacks are readily possible.

The 16a to 17b show a further embodiment of the securing elements 32 , The respective security elements 32 in this case comprise a respective threaded bolt 62 and one with the threaded bolt 62 corresponding mother 72 , The threaded bolts 62 have an external thread 67 on. Correspondingly, the respective nuts 72 inner thread 68 on.

The threaded bolts 62 are in the radial direction of the brake disc 10 from outside to inside in the corresponding receiving openings 42 inserted and penetrate respective through holes 74 of the wheel flange 12 , The first side of the wheel flange pointing outwards in a radial direction 12 supported threaded bolt 62 are beyond their external thread 67 and over the internal thread 68 the respective nuts 72 with the nuts 72 screwed. Here are the nuts 72 in each case on a radially inwardly facing, the first side facing away from the second side of the wheel flange 12 supported. With In other words, the threaded bolts 62 by means of nuts 72 countered, causing the friction ring 16 and the wheel flange 12 screwed together and thereby clamped together.

This also makes a particularly simple and thus time and cost assembly of the brake disc 10 realized. For screwing the threaded bolts 62 with the nuts 72 also have the nuts 72 a respective tool attack 76 on. In the present case, it is the tool attack 76 around an external square. It is understood, however, that other tool attacks are possible.

LIST OF REFERENCE NUMBERS

10

brake disc

12

wheel flange

14

Through openings

16

friction ring

18

Positive connection

20

first positive locking element

22

second positive locking element

24

first friction ring half

26

second friction ring half

28

spacing

30

safety device

32

fuse element

34

threaded sleeve

36

threaded bolt

38

spring element

40

recess

42

receiving opening

44

Through opening

46

head

48

first page

50

second page

52

tool application

54

body

56

spring arm

58

rejuvenation

60

Cooling channel opening

61

cooling channel

62

threaded bolt

64

external thread

66

screw-in

67

external thread

68

inner thread

70

tool application

72

mother

74

Through opening

76

tool application

A

Area

B

Area

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 20213950 U1 [0002]
• DE 10125113 A1 [0003]
• WO 02/33280 A1 [0004]
• EP 0914483 A1 [0005]
• US 6446765 B1 [0006]
• WO 2010/028746 A1 [0007]
• WO 2009/015786 A1 [0008]

Claims (9)

Brake disc ( 10 ), in particular for a motor vehicle, with a friction ring ( 16 ), which is a connecting element ( 12 ), in particular a brake disk pot, a wheel flange or a wheel hub, the outer peripheral side at least partially surrounds and which with the connecting element ( 12 ) radially by a positive connection ( 18 ) and axially by at least one in a radially inside of the friction ring ( 16 ) extending receiving opening ( 42 ) received security element ( 32 ) is connectable, characterized in that the securing element ( 32 ) an external thread ( 66 ) having screw element ( 62 ), which in the radial direction from outside to inside in the receiving opening ( 42 ) is inserted and by means of its external thread ( 66 ) the friction ring ( 16 ) with connecting element ( 12 ) is screwed, wherein between the securing element ( 32 ) and the friction ring ( 16 ) at least one on the one hand on the fuse element ( 32 ) and on the other hand on the friction ring ( 16 ) resiliently supported spring element ( 38 ) is arranged, by means of which the friction ring ( 16 ) relative to the security element ( 32 ) is movable. Brake disc ( 12 ) according to claim 1, characterized in that the screw element ( 62 ) via its external thread ( 66 ) and a corresponding internal thread ( 68 ) of the connecting element ( 12 ) directly into the connecting element ( 12 ) is screwed. Brake disc ( 12 ) according to claim 1, characterized in that the screw element ( 62 ) a corresponding passage opening ( 66 ) of the connecting element ( 12 ) penetrates and over the external thread ( 66 ) and a corresponding internal thread ( 68 ) of a counter element ( 72 ) with the on the connecting element ( 12 ) supported counter element ( 72 ) is screwed. Brake disc ( 10 ) according to one of the preceding claims, characterized in that the spring element ( 38 ) on the one hand to the screw ( 62 ) is supported. Brake disc ( 10 ) according to one of the preceding claims, characterized in that the spring element ( 38 ) in the circumferential direction and / or in the axial direction between the securing element ( 32 ) and the friction ring ( 16 ) is arranged. Brake disc ( 10 ) according to one of the preceding claims, characterized in that the friction ring ( 16 ) by means of the spring element ( 38 ) in the axial direction relative to the securing element ( 32 ) is movable. Brake disc ( 10 ) according to any one of the preceding claims, characterized in that the brake disc ( 10 ) the connecting element ( 12 ), which of the friction ring ( 16 ) is surrounded on the outer peripheral side at least partially and which with the friction ring ( 16 ) radially through the positive connection ( 18 ) and axially through the at least one in the radially within the friction ring ( 16 ) extending receiving opening ( 42 ) received security element ( 32 ) connected is. Brake disc ( 10 ) according to claim 7, characterized in that the connecting element ( 12 ) as a brake disk pot or as a flange, in particular disk flange or wheel flange ( 12 ), or as a hub, in particular wheel hub is formed. Brake disc ( 10 ) according to one of the preceding claims, characterized in that the friction ring ( 16 ) two friction ring halves ( 24 . 26 ) between which cooling channels ( 61 ) are arranged an inner ventilation arrangement, wherein positive-locking elements ( 20 . 22 ) of the positive connection ( 18 ) only on one of the friction ring halves ( 24 . 26 ) are arranged or the form-locking elements ( 20 . 22 ) of the positive connection ( 18 ) partially on one of the friction ring halves ( 24 ) and partly on the other friction ring half ( 26 ) are arranged.

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