DE19640931A1 - Spring arrangement for floating calliper disc brake with brake support - Google Patents

Abstract

The brake support (3) has two support arms (6,7). A floating calliper (2) moves axially along the brake support and grips over a brake disc. A housing retainer spring (13) radially tensions the floating calliper in relation to the brake support. The housing retainer spring is fixed to the outer floating calliper side (22) and is axially locked by at least one catch lug (21) gripping behind. Tangential sprung arms (18,19) are axially movable and rest against the brake support arms by radial sprung pre-tension. The at least one-part housing retainer spring has at least one fixture part (15) on its free spring end (14) and is detachably suspended on a cavity (16) or protuberance on the axially outer floating calliper side.

Description

The invention relates to a spring arrangement for a Floating caliper disc brake of a vehicle, in particular on a floating caliper disc brake, with one on one Brake carrier guided axially and between axia len brake carrier arms arranged floating caliper, being at the brake carrier arms axially displaceable the brake pads ge are stored. As is well known, the floating saddle and the Brake carrier radially against each other by means of a housing retaining spring other braced for an elastic and rattle-free guide to reach the floating saddle. Such a housing neck tefeder is often made in one piece from Fe the wire bent. In general, the case holder has which is a substantially elongated shape, with a so called spring clip in the opposite Fe derarm passes over. The spring arms are made of hairpin-like Chen sections formed in which a related to the brake gener inner leg and an outer leg over one corresponding connector are connected to each other. The axially outer legs extend to the free Ends of the housing retaining springs, which somehow hook-like are formed so that these free ends in corresponding  Openings hooked onto the outer legs of the floating saddle can be. The spring arms press radially against the Undersides of the brake carrier arms and are axially displaceable cash on this. In addition, the housing retaining spring is in ge suitably on the outer legs of the floating saddle locked in the axial direction.

A floating caliper disc brake with such a Fe the arrangement is known from DE 39 29 748 A1. Here are the free ends of the housing retaining spring in the tang tial direction of the disc brake bent and thereby which faces inwards or outwards. Depending on the Direction of the bent end sections are in ent speaking openings hooked into either the tang tial -Outside of the outer floating saddle legs or in introduced the tangential inner sides of a recess which are the two outer floating saddle legs of separates each other. On the tangential outside of the Floating caliper legs are also some protrusions or recesses are provided in which sections of Ge housing retaining spring are locked in such a way that the housing holding spring in the axial direction of the disc brake on the Floating saddle is locked.  

Another floating caliper disc brake of the beginning type is known from DE 40 24 484 A1. In the sem case are the hook-shaped bent free ends of the Housing retaining springs each hooked into a hole that from the axial outside into the outer floating saddle legs are introduced. These holes run with a certain inclination towards the central axis of the Disc brake to prevent the housing retaining spring from falling out or incorrect assembly. In addition, the case content spring in the axial direction on the two floating seeds telschenkeln locked that the spring clip or the inner Legs of the two spring arms each on the back of one Are latched, which are from the bottom of the Floating caliper legs against the radial direction stretch.

In both known cases there are corresponding openings or Holes required, in which the hook-shaped bent End portion of the free ends of the housing retaining spring inserted is hooked. To make such openings is in the As a rule, complex machining is required. In In either case, the alignment of these holes is also still different from the orientation of other openings of the Floating saddles, such as the hole for the Brake pistons or bores for bearing sleeves, which anyway  have to be manufactured. The different direction of the Bores for the housing retaining spring therefore require additional Lich reclamping the workpiece to be machined. Ande on the other hand, it should be noted that with such a narrow bore conditions in which the ends of the housing retaining spring are arranged are under the influence of accumulating wetness and aggres sive media an increased risk of corrosion for the housing retaining spring exists. That is why it is necessary for the housings to produce a retaining spring from expensive stainless spring wire. Furthermore, the housing retaining springs described are common only by using an additional tool on the float mount saddle. It won't be easy anyway Assembly of such a spring occurs frequently enough de Corrosion between the hooked spring ends and the other material existing floating saddle within the narrow bore difficult. This often results in the Risk of incorrect assembly or damage to the housing holding spring or floating saddle, especially with unsachge according to assembly by a non-specialist fitter. A resulting malfunction of the floating saddle disc brake can therefore not be excluded with certainty the.

The German published patent application DE 43 29 904 A1 describes in addition, a floating caliper disc brake with spring  arrangement in which the spring arrangement consists of two wire springs consists. The wire springs are each on the axially outer Floating caliper legs attached. Each of them wraps around Springs a screw anchored in the floating caliper leg, a rivet or a notch nail. The result is one connection of the wire springs on the Floating saddle. The two wire springs each have a first spring arm, which is on the floating caliper leg supports and a second spring arm, which is under radial forward voltage on the underside of the brake arm. The permanent attachment of the two wire springs to the outer one Floating caliper leg disadvantageously requires both a white processing step (blind hole, tapped hole) than also an additional component for fastening (rivet, screw be, notch nail). In addition, such Floating caliper disc brake with non-releasable spring arrangement assembly unnecessarily difficult.

The invention relates to a floating caliper disc brake according to DE 40 24 484 A1 and has set itself the task the spring arrangement for such floating caliper washers brake to improve that the floating caliper is easier and cheaper to manufacture and the Kor Risk of corrosion, especially in the hooking area of the housing  retaining spring on the floating saddle is significantly reduced.

The task is solved by the combination of features of Claim 1. The housing retaining spring with we at least one of their free spring ends on one when casting of the floating saddle formed recess or elevation of outer floating saddle leg detachably hooked.

In a variant of the invention is on the radial outside side of the outer leg of the floating caliper is cast on funnel-shaped depression or a protruding spigot seen. In the case of the funnel-shaped depression, the Housing retaining spring in a simple way with its hook-shaped free spring end can be hooked. When using a protruding pin on the outer floating caliper leg the free end of the spring is bent into an eyelet and can hang easily over the spigot.

In a preferred embodiment of the invention, the axial outside of the outer floating caliper leg at least one axially recessed pocket is provided, the has a radial shoulder. The housing retaining spring with hook-shaped spring end can be particularly easy on the raw cast bag with radial heel can be hooked in,  Float on the floating saddle without any further processing to have to.

In a further development of the invention, the Friction facing side of the back plate of the axially outer Ren brake pad attached a sheet metal tab by at least axially after a section of the housing retaining spring externally directed spring preload is engaged. In order to in addition to the bracing of the brake carrier and floating caliper also the secure pad holder of the outer brake pad on outer floating caliper legs realized.

An additional advantage of assembly results when you have the preferably made of spring wire bent housing retaining spring two listed in parts. The two spring elements are mirrored symmetrical to the plane of symmetry of the floating caliper discs brake arranged. The spring elements are each with a first spring arm detachably on the outer floating caliper leg hooked and with a second spring arm by reaching behind a locking lug on the outer floating saddle leg axially ver locks.

It is the basic idea of a further development of the Erfin manure according to claim 8, while maintaining the advantageous Locking of the spring clip on radially protruding locking lugs  the floating saddle leg an improved hooking option for the free ends of the housing retaining springs. This was achieved in that the floating saddle on the tangential sides a cast-on radial protruding pin on which one corresponds to a corresponding eyelet bent fastening section of the housing retaining springs is hooked. These cones are in plain white producible when casting the floating saddle and require also no further mechanical post-processing. The eyes on the free ends of the housing retaining spring run essentially lichen in a to the middle plane of symmetry of the swimming saddle parallel plane and they are under tangential Preload hooked onto the tenons. In other words it means that the distance between the two eyelets in the relaxed state of the housing retaining spring is less than when installed on the floating caliper disc brake. There is the housing retaining spring in the tangential direction against unintentional detachment from the floating saddle chert. In addition, there is a risk of corrosion on the hook produce the housing retaining spring on the floating caliper clearly deducted, since none in the embodiment according to the invention damming wetness or aggressive media are to be feared.  

Advantageous refinements of the invention result from claims 9 to 15 and are later in an off example described in more detail.

An advantageous embodiment according to claim 9 is based on Implementation of a simple and problem-free assembly of the Housing retaining spring directed. The pins on the tangential Outside of the floating saddle and the eyelets on the free Ends of the housing retaining springs are in their shape and dimensions Solution matched so that the housing retaining spring at least by what is required for their assembly or disassembly Lichen angle, which is preferably 10 ° to 90 ° by the Pin extending axis is pivotable. This configuration allows the housing retaining spring to be installed in an at least slightly pivoted upward position is hooked onto the spigot with its eyelets. The axially outer leg of the housing retaining springs under over Turn the spring force by the required amount tial spread apart, so that the eyelets then under Zu spring back of the outer spring legs onto the pins be hooked. Then the housing retaining spring is down pivoted until the spring clip on the axial outer sides the locking lugs on the undersides of the floating saddle legs comes to the plant. By further swiveling at the same time early deflection of the spring clip against the radial  The spring clip or the axially inward direction becomes the brake Ren leg of the spring arms under axial preload on the Back of the locking lugs locked.

According to a development of the invention according to claim 10 is the distance between the contact points of the spring arms the bottom of the brake carrier arms and the pin larger than with the known solutions. This results in particular the advantage of greater freedom in terms of design the radial preload and the spring detection. Doing it the housing retaining spring fills all the necessary functions with regard to a transport lock as well as the required Lichen radial bracing of the floating caliper on the Bremsträ ger.

A variant according to claim 11 is directed to the fact that the dimensions of the floating sate due to the cast-on cones or its bridge in the tangential direction is not is enlarged. In this case, the cones formed that from an already existing tangential standing edge on the tangential sides of the bridge of the Float saddles are introduced, which the Free the tenon from the rest of the tangentially projecting edge gen. This training can advantageously by a training according to claim 12 are supplemented, which  provides that the sections of the Housing retaining spring essentially in the axial direction of the Disc brake run and at least partially on rest on the top of the tangentially projecting edges. This measure is particularly advantageous if one great spring force of the housing retaining spring in the radial direction is required. If the ra required is particularly large dialer spring force of the housing retaining spring is also a Further training recommended according to claim 13, after which the eyelets are designed at the free ends of the housing retaining spring that it completely surrounds the cones on the underside thereof fen. Here, the eyelets on the top of the pin have an opening gap. It is important that the Housing retaining spring both with the lower area of the eyelets the bottom of the pin and with the axially extending Sections at least partially on top of the tangen tial protruding edges on the sides of the bridge of the Can support floating saddles. By such a ver binding the housing retaining spring with the floating caliper safe absorption of high clamping forces in the radial direction ensures.

A further advantageous embodiment according to claim 14 provides that the axially outer legs of the spring arms each because in a tangential inward schlin  gen-shaped arch, which is safe on the outside te of the relevant floating saddle leg. This loop-shaped arches run essentially in one plane parallel to the brake disc and are beneficial for secure locking of the housing retaining spring in the axia len direction of the brake on the two outer caliper legs keln. On the other hand, these offer loop-like arches additional options for a variation in the ra dialen direction acting clamping forces of the housing retaining spring.

Since also due to the design of the invention Connection of the housing retaining spring to the floating caliper in Corresponding pegs and eyelets to prevent corrosion risk is significantly reduced, a further development extension of the invention recommended according to claim 15, according to which the Housing retaining spring made of simple, inexpensive spring steel stands and if necessary only with a normal one Corrosion protection is provided.

The invention is based on three exemplary embodiments described in more detail. In the accompanying drawings:

Fig. 1 is a partially sectioned side view of a floating-caliper spot-type disc brake with LOCK ter housing holding spring,

Fig. 2 is a partial sectional view of the outer floating caliper limb locked-housing retaining spring,

Fig. 3 is a side view of a floating-caliper disc brake with two-part housing holding spring,

Fig. 4 is a side view of a floating-caliper disc brake with two-part housing retaining spring and sheet metal clip on the back plate of the outer brake pad,

Fig. 5 is a view taken along line AA partial sectional view of the outer caliper leg of Fig. 3 with the housing holding spring,

Fig. 6 is a sectional view of the outer brake pad of FIG. 4 with sheet metal tab on the pad back plate,

Fig. 7 is a view of an embodied as a floating caliper disc brake floating-caliper disc brake with a spring arrangement with a view toward the axial outer side,

Fig. 8 is a side view of the floating saddle with mounted housing retaining spring of Fig. 1, wherein the housing retaining spring is cut along the line II-II and

Fig. 9 is a disassembled housing retaining spring in a perspective view.

Fig. 1 shows one of the floating caliper and brake carrier 2 3 be standing floating-caliper disc brake 1 with a generic proper spring assembly 4. The brake carrier 3 is screwed through holes 5 with a stub axle, not shown, and has support arms 6 , 7 , which axially overlap the brake disc, which is not shown. In axial guide grooves 8 of the support arms 6 , 7 are arranged on both sides of the brake disc brake pads 9 , 10 with tangentially extending support members 11 , 12 axially displaceably supported and guided. The brake pads 9 , 10 are encompassed by a U-shaped floating caliper 2 projecting beyond the outer edge of the brake disc. The floating caliper 2 is via axially displaceable bolt guides to the brake carrier 3 and has a hydraulic actuating device which can press the axially inner brake pad 9 directly and the axially outer brake pad 10 indirectly through axial displacement of the floating caliper when the brake is actuated against the brake disc.

For rattle-free and reliable operation of the floating caliper disc brake 1 , floating caliper 2 and brake carrier 3 are braced against one another in the radial direction by means of a housing spring 13 under spring force. The housing retaining spring 13 has on its two free springs 14 each a hook-shaped fastening section 15 which is detachably suspended in an axially recessed pocket 16 with a radial shoulder 17 . Here, the pocket 16 with shoulder 17 is formed directly on the casting of the floating saddle 2 on the axially outer floating saddle leg 22 . At the free Fe derenden 14 of the housing retaining spring 13 we essentially tangentially aligned spring arms 18 , 19 which bear under radial spring preload on the underside of the brake arms 6 , 7 axially displaceable. Connected who the tangential spring arms 18 , 19 by a spring bracket 20 extending in wesent union parallel to the brake disc. For axial locking, the spring clip is locked by axially outward engagement of locking lugs 21 on the outer floating caliper leg 22 .

The exact attachment of the one-piece spring wire led housing retaining spring 13 on the outer floating saddle angle 22 can be seen in Fig. 2. The hook-shaped fastening supply section 15 lies within the raw cast pocket 16 on the outer floating caliper leg 22 with radial spring prestress on the radial shoulder 17 . Ideally, the radial shoulder 17 is inclined axially inward to prevent the fastening section 15 from slipping out of the pocket 16 . By generously dimensioning the pocket 16 and the associated limited freedom of movement of the hakenför shaped fastening portion 15 within the pocket 16 , the risk of corrosion between the housing retaining spring 13 and floating caliper 2 , especially when used under different materials, is averted.

Analog section 15 of the housing holding spring 13 in a recess (pocket 16) at the outer floating caliper leg 22 and the device to attach the housing retaining spring with a ge to an eyelet bent fastening portion, for example on a cast on the floating caliper leg 22 projecting pin is conceivable for hooking a hook-shaped Befestigungsab.

To further axially secure the housing retaining spring 13 in FIG. 2, the spring clip 20 is axially locked by reaching behind at least one latching lug 21 on the outer floating caliper leg 22 .

The extremely simple assembly of the housing retaining spring 13 is carried out by placing the hook-shaped fastening sections 15 on the radial heels 17 within the pocket 16 and then folding down or expanding the housing retaining spring 13 radially, the tangential spring arms 18 , 19 below the brake carrier arms 6 , 7 come lie and the spring clip 20 snaps axially within the locking lugs 21 .

In FIGS. 3 to 6 versions of spring assemblies 4 for floating-caliper disc brakes 1 are shown in which a two spring elements 23, 24 housing retaining spring is made of wire used. The two spring elements 23 , 24 are arranged mirror-symmetrically to the plane of symmetry E of the floating caliper disc brake 1 . The two spring elements 23 , 24 each have a first free spring end 26 , which is hooked onto the axially outer floating caliper leg 22 , and a second free spring end 27 , which runs essentially parallel to the brake disk, not shown, and axially on latching lugs 21 of the outer floating seat telschenkels 22 is axially locked. The two spring ends 26 , 27 are connected to one another by a tangentially extending loop-shaped spring arm 18 , 19 , which rests with radial spring preload on the underside of the brake arm 6 , 7 axially displaceably.

Preferably, the two spring elements 23 , 24 are bent during their manufacture from a single piece of wire and only then separated from one another in the region of their second spring ends 27 .

The individual spring elements 23 , 24 are fastened to the outer floating saddle leg 22 essentially, as can also be seen in FIG. 5, by hanging a hook-shaped fastening section 15 on the first free spring end 26 in a cast-on funnel-shaped depression 28 on the radial outside of the outer floating saddle leg 22 . Analog to this, of course, a fastening of the spring elements 23 , 24 with eyelet-like end portions on radially projecting, cast-on pins on the outer floating caliper leg 22 is possible. It is also conceivable to fasten the spring elements 23 , 24 within cast-on pockets 16 according to FIG. 1.

The assembly or disassembly of a two-part housing retaining spring is compared to a one-piece club. The two spring elements 23 , 24 are each hooked during assembly with their first spring end 26 on the outer floating caliper arm 22 and by subsequent pivoting and spreading of the two spring ends both with the spring arm 18 , 19 on the underside of the brake carrier arms 6 , 7 when axially verrie gel behind the radially projecting locking lugs 21 with the second free end of the spring 27. After installing the two-part housing holding spring so are the second spring ends 27 of the two spring elements 23, 24 locked axially behind the locking lugs 21 at.

In addition to the function of the spring arrangement 4 , according to FIGS . 4 and 6, a sheet metal tab 31 is attached to the back plate 29 of the outer brake pad 10 on the side facing away from the friction pad 30 . The sheet metal tab 31 is preferably riveted on and runs essentially at a small distance parallel to the back plate. The free end of the sheet metal tab 32 is axially engaged behind by the second free spring ends 27 of the two spring elements 23 , 24 with spring preload. This results in an axial spring force on the outer brake pad 10 , which keeps it always in contact with the outer floating caliper leg 22 . The two spring elements 23 , 24 thus, in interaction with the sheet metal bracket 31, perform both the function of the pad holder of the outer brake pad 10 on the outer floating caliper arm 22 and the radially rattle-free bracing of the floating caliper 2 relative to the brake carrier 3 .

The blank shown in Figs. 3 to 6 of the illustrated embodiments, the arrangement Fe with two spring elements 23, 24 be realized also readily using a one-piece Gehäusehal tefeder 13 according to the example in FIG. 1. Ultimately, the decisive factor for the invention remains the fact that the one-piece or two-part housing retaining spring can be releasably hooked and locked onto the floating saddle 2 without additional machining.

In the floating caliper disc brake shown in FIG. 7, a floating caliper 2 in the form of a floating caliper is mounted and guided axially displaceably on a brake carrier 3 fastened or to be fastened to the vehicle body. The brake carrier 3 is equipped with the two axially extending brake carrier arms 6 , 7 , on which two brake pads 9 , 10 are axially slidably mounted, of which only the axially outer brake pad 10 is visible in FIG. 7. The axially outer brake pad 10 is overlapped by the outer floating caliper leg 22 , which goes from the bridge 36 of the floating caliper and runs in the radial plane of the floating caliper discs brake 1 . The two fingers 33 of the floating caliper leg 22 are known to be separated from one another by a recess 37 . A latching lug 8 is each formed on the lower edges of the fingers 33 of the floating caliper leg 22nd In addition, the effective friction surface 40 of the brake disc is also indicated in FIG. 7 by the circular chain lines 39 . This friction surface 40 is arranged or to be arranged between the friction linings of the two brake linings 9 , 10 .

Of particular importance for the invention, however, is the Ge housing retaining spring 13 , which for known reasons braces the floating caliper 2 radially with the brake carrier 3 , as well as its attachment to the floating caliper 2 . In Figs. 7 and 8, the housing holding spring 13 in the mounted state and the specificities of their attachment is on the floating caliper 2 has been set. The housing retaining spring 13 has in its central area, the so-called spring clip 20 , which extends in wesent union in a plane parallel to the brake disc and merges into a spring arm 18 , 19 on its opposite sides. The spring arms 18 , 19 are shaped like a hairpin and are formed by an axially inner leg 44 and an axially outer leg 45 , which are connected to one another via an arcuate connecting section 46 . With the arcuate connecting section 46 , the spring arms 18 , 19 rest with corresponding spring tension on the underside of the brake support arms 6 , 7 and are axially displaceable relative to the brake support arms 6 , 7 . Starting from the axially outer legs 45 , a loop-shaped arc 48 of the housing retaining spring follows in the direction of the free ends 14 of the housing retaining spring 13 , which essentially runs in a plane parallel to the brake disc. In addition, the two loop-shaped arches 48 are directed tangentially inwards, ie they run towards one another. At the arches 48 adjoins a union union radial section 49 of the housing retaining spring 13 , which then merges into a section 50 bent essentially in the axial direction A of the floating caliper disc brake ( FIG. 8). This is followed by the free ends 14 of the housing retaining spring 13 , which are each bent into an eyelet 51 . These eyelets 51 each run essentially in a plane parallel to the vertical plane of symmetry E of the floating saddle 2 , this vertical symmetry plane E at the same time the plane of symmetry of the housing retainer 13 .

From FIGS. 7 and 8 can also be seen how the Ge häusehaltefeder 13 to the floating-caliper disc brake 1 and is arranged on the floating caliper 2 and held. As can be seen from FIG. 8, the tangential sides of the bridge 36 of the floating saddle 2 each have a tangentially projecting cast-on pin 52 , on which an eyelet 51 of the housing retaining spring 13 is hooked. The pins 52 are formed in that an already existing tang tial projecting edge 53 is interrupted on the tangential sides of the bridge 36 by two substantially perpendicular recesses 54 . The pin 52 thus created is thus flush with the tangential outside of the edge 53 . The eyelet 51 engages around the pin 52 , parts of the eyelet 51 being arranged in the two depressions 54 . In Fig. 8 it can be seen that the section 50 of the housing retaining spring 13 extending in the axial direction A partially rests at points 55 on the top of the tangentially protruding edge 53 . At the same time, the housing retaining spring 13 , as shown in FIG. 7, with the connec tion section 46 of their spring arms 18 , 19 on the underside of the brake support arms 6 , 7 under the action of the spring tension in the radial direction R. The clamping force of the housing retaining spring 13 in this radial direction R ensures the desired radial bracing of the floating caliper 2 relative to the brake carrier 3rd The loop-shaped arches 48 of the housing retaining spring 13 here offer in particular the possibility, depending on the spring detection, to determine the desired spring force or elasticity in the radial direction.

In addition to the tensioning of the housing retaining spring 13 in the ra dialen direction R on the floating caliper disc brake 1 , the housing retaining spring 13 must also be held in the axial direction A on the floating caliper 2 or on the floating caliper leg 22 . This is done in that the housing retaining spring 13 in the axial direction A on the floating caliper leg 22 is clamped with spring force. In particular, this is achieved in that the housing retaining spring 13 with the adjoining the axially outer leg 45 adjoining loop-shaped arches 48 abuts on the axial outside of the floating caliper leg 22 . In addition, the housing holder of the 13 under tension with its spring clip 20 or with the transition region between the spring clip 20 and the axi al rear legs 44 of the spring arms 18 , 19 on the rear sides 56 of the 22 formed on the lower sides of the floating saddle legs 22 locking lugs 21st are locked. The housing retaining spring 13 is thus also axially secured.

Fig. 9 shows a schematic representation of a housing retaining spring 13 in its relaxed normal state, ie before it is mounted on the floating caliper disc brake 1 or after it has been removed from the floating caliper disc brake 1 . It should be noted that the housing retaining spring 13 is designed symmetrically with respect to the vertical plane of symmetry E. The central region of the housing retaining spring 13 is formed by the spring clip 20 , which is bent slightly radially upward, ie towards the bridge 36 of the floating saddle 2 . This spring clip 20 goes on both sides in the spring arms 18 , 19 , which have a hairpin-like shape substantially and are formed by an axially inner leg 44 and an axially outer leg 45 , each of which is connected to one another by an arcuate connecting section 46 . The axially outer legs 45 each merge into a loop-shaped arc 48 which essentially run in a plane parallel to the brake disc and face each other. After these loop-shaped arches 48 follows in each case a substantially in the radial direction R extending section 49 , which is followed by a section 50 bent in wesent union in the axial direction A. The free ends 14 of the housing retaining spring 13 are then each bent to form an eyelet 51 , the bending of the eyelet 51 starting from the axial section 50 initially being downward and then in the form of an essentially circular ring which has an opening gap 57 on its upper side. It is also important to this housing retaining spring 13 that, in the relaxed state shown in FIG. 9, the position of the two eyelets 51 in the tangential direction T is smaller than in the installed state, which can be seen from FIG. 7. This ensures that the housing retaining spring 13 is securely held on the pin 52 with its eyelets 51 . In addition, the distance in the axial direction A between the inner leg 44 and the outer leg 45 or between the spring clip 20 and the schlin gene-shaped arch 48 is smaller than in the installed state, which can be seen from Fig. 8. This ensures that the housing retaining spring 13 is securely clamped to the floating caliper leg 22 in the axial direction A and is held there. Ultimately, it should also be noted that the housing holder tefeder 13 is made of a simple inexpensive spring steel and is provided with a simple corrosion protection, for example in the form of a color coating.

Reference list

1 floating caliper disc brake
2 floating saddles
3 brake carriers
4 spring arrangement
5 holes
6 , 7 brake carrier arm
8 guide groove
9 , 10 brake pad
11 , 12 support part
13 housing retaining spring
14 Free spring end
15 hook-shaped fastening section
16 cast-on bag
17 Radial paragraph
18 , 19 spring arm
20 spring clips
21 latch
22 floating caliper legs
23 , 24 spring element
26 First free spring end
27 Second free spring end
28 funnel-shaped depression
29 back plate
30 friction lining
31 sheet metal tab
32 Free end of sheet metal tabs
33 fingers of the floating saddle leg
36 bridge
37 recess
39 dash-dot line
40 friction surface
44 inner thigh
45 Outer thigh
46 connecting section
48 (loop-shaped) arches
49 (radial) section
50 (axial) section
51 eyelet
52 cones
53 rand
54 deepening
55 digits
56 back
57 opening gap
A Axial direction
E Vertical plane of symmetry
R radial direction
T Tangential direction

Claims (15)

1. Spring arrangement ( 4 ) for a floating caliper disc brake ( 1 ) with a two support arms ( 6 , 7 ) having a brake carrier ( 3 ) on which a brake disc spanning a floating caliper ( 2 ) is axially displaceably guided with a housing retaining spring ( 13 ), which clamps the floating caliper ( 2 ) radially with respect to the brake carrier ( 3 ), the housing retaining spring ( 13 ) being fastened to the outer floating caliper arm ( 22 ) and axially locked by means of rear engaging at least one latching lug ( 21 ) and with tangential spring arms ( 18 , 19 ), which are axially displaceable and bear against the brake carrier arms ( 6 , 7 ) under radial spring preload, characterized in that the at least one-piece housing retainer ( 13 ) with at least one fastening section ( 15 ) at its free spring end ( 14 , 26 ) on a molded during the casting of the floating saddle ( 2 ) recess ( 16 , 28 ) or elevation on the axially outer floating saddle leg ( 22 ) releasably egg is attached. 2. Spring arrangement ( 4 ) according to claim 1, characterized in that on the radial outside of the outer floating caliper leg ( 2 ) at least one of the floating caliper ( 2 ) molded funnel-shaped recess ( 28 ) or a projecting pin is provided. 3. Spring arrangement ( 4 ) according to claim 1, characterized in that on the axial outside of the outer floating caliper leg ( 22 ) at least one axially inwardly recessed pocket ( 16 ) with a radial shoulder ( 17 ) is formed by casting. 4. Spring arrangement ( 4 ) according to at least one of the preceding claims, characterized in that on the friction lining ( 30 ) facing away from the back plate ( 29 ) of the axially outer brake pad ( 10 ) a Blechla cal ( 31 ) is attached, the From at least one section ( 20 , 26 ) of the housing retaining spring ( 13 , 23 , 24 ) is engaged under axial spring preload. 5. spring arrangement ( 4 ) according to at least one of the preceding claims, characterized in that the Ge housing retaining spring ( 13 , 23 , 24 ) consists of spring wire. 6. spring arrangement ( 4 ) according to at least one of the preceding claims, characterized in that the Ge housing holding spring ( 13 ) consists of two spring elements ( 23 , 24 ) which are arranged mirror-symmetrically to the plane of symmetry ( 25 ) of the floating caliper brake ( 1 ). 7. Spring arrangement according to claim 6, characterized in that each of the spring elements ( 23 , 24 ) with an angled first free spring end ( 26 ) on the outer floating caliper leg ( 22 ) is hooked and via a second, essentially parallel to the brake disc spring end ( 27 ) that leg ( 22 ) is axially locked by reaching behind at least one locking lug ( 21 ) on the outer floating saddle. 8. Spring assembly for a floating-caliper disc brake, in particular floating caliper disc brake, with an axially displaceably guided on a brake carrier (2) and between the axial brake carrier arms (3) arranged floating caliper (1) and with an integral, of Fe The wire bent housing holding spring (11) , which clamps the floating caliper ( 1 ) radially against the brake carrier ( 2 ), the housing retaining spring ( 1 ) with its free ends ( 17 ) being releasably hooked onto the floating caliper ( 1 ) and the two spring arms ( 13 ) each under tension on the underside of a brake carrier arm ( 3 ) axially displaceable and the housing retaining spring ( 11 ) is thereby axially clamped and held on the floating caliper legs ( 5 ) in that the housing holder ( 11 ) with the axially outer legs ( 15 ) of the spring derbügel ( 13 ) on the outside of the floating saddle legs ( 5 ) and with the spring clip ( 12 ) or with the axially inner legs ( 14 ) of the spring arms ( 13 ) on the rear side ( 26 ) one against the radial direction (R) from the undersides of the floating caliper legs ( 5 ) protruding locking lugs ( 8 ) is locked under tension in the axial direction (A), characterized marked that the free ends ( 17 ) of the housing retainer ( 11 ) are bent into eyelets ( 21 ) which run essentially in parallel planes to the vertical plane of symmetry (E) of the floating saddle ( 1 ) and that these eyelets ( 21 ) are tangential Bias are each hooked onto a tang on the tangential sides of the floating saddle ( 1 ) cast pin ( 22 ). 9. Spring arrangement claim 8, characterized in that the eyelets ( 21 ) and the pin ( 22 ) are designed and dimensioned such that the housing retaining spring ( 11 ) by an angle required for their assembly or disassembly, which is preferably 10 ° to 90 ° is pivotable about the axis extending through the pins ( 22 ). 10. Spring arrangement according to one of claims 8 or 9, characterized in that the pins ( 22 ) on the opposite tangential sides of the bridge ( 6 ) of the floating saddle ( 1 ) are cast. 11. Spring arrangement according to one of claims 8 to 10, characterized in that the pins ( 22 ) through them adjacent recesses ( 24 ) from a tangent from the sides of the bridge ( 6 ) of the floating saddle ( 1 ) from the standing edge ( 23 ) are separated. Comprises 12. The spring assembly of claim 11, characterized net gekennzeich that the housing holding spring (11) in front of the eyes (21) each cut a substantially axially extending from (20) and that these sections (20) on top of the protruding at least partially tangentially Rest the edges ( 23 ). 13. Spring arrangement according to claim 12, characterized in that the eyelets ( 21 ) completely embrace the undersides of the pins ( 22 ). 14. Spring arrangement according to one of claims 8 to 13, characterized in that the axially outer legs ( 15 ) of the spring arms ( 13 ) each go into a tangentially inwardly directed loop-shaped arc ( 18 ), which are essentially parallel to the brake disc Level run, and that the schlingeniformi arches ( 18 ) bear under axial preload on the outside of the floating caliper legs ( 5 ). 15. Spring arrangement according to one of claims 8 to 14, characterized in that the housing retaining spring ( 11 ) consists of simple, inexpensive spring steel and if necessary it is provided with normal corrosion protection.