DE2912385A1

DE2912385A1 -

Info

Publication number: DE2912385A1
Authority: DE

Description

Stützscheiben 12 für mit Bremsbelag versehene Bremsbelagträger 13 und deren Betätigungskolben 14 sind direkt an die Radführungsglieder 3 angeformt. Der Durchmesser der Stützscheiben 12 ist mindestens so groß wie der Durchmesser der Bremsscheiben 11. Die Stützscheiben 12 weisen jeweils zwei einander diametral gegenüberliegende zylindrische Bohrungen 15 auf, in denen die Betätigungskolben 14 geführt sind und die an Hydraulikleitungen 16 angeschlossen sind. Vom Mittelbereich der Stützscheiben 12 her erstrecken sich im wesentlichen rechtwinklig zu den Radführungsgliedern 3 an der der Bremsscheibe 11 zugewandten Seite und an der Außenseite Versteifungsrippen 17 bzw. 18 bis in den Bereich der zylindrischen Bohrungen 15. Am äußeren Rand sind die Stützscheiben 12 im Bereich der zylindrischen Bohrungen 15 mit parallel zu den Radführungsgliedern 3 abgeflachten Ausnehmungen 19 versehen, in deren Grund parallel zu den Radführungsgliedern 3 Nuten 20 ausgebildet sind. Support disks 12 for provided with brake lining Brake pad carrier 13 and the actuating piston 14 thereof are molded directly onto the wheel guide members 3. The diameter of the support disks 12 is at least as large as the diameter of the brake disks 11. The support disks 12 each have two diametrically opposed to each other opposite cylindrical bores 15 in which the actuating piston 14 and which are connected to hydraulic lines 16. From the middle area the support disks 12 extend essentially at right angles to the wheel guide members 3 stiffening ribs on the side facing the brake disc 11 and on the outside 17 or 18 to the area of the cylindrical bores 15. Are on the outer edge the support disks 12 in the area of the cylindrical bores 15 with parallel to the Wheel guide members 3 flattened recesses 19 provided, parallel in the bottom to the wheel guide members 3 grooves 20 are formed.

In die Nuten 20 greifen komplementär zu den Nuten 20 und ihrem Umgebungsbereich geformte federnde Abschnitte 21 von Manschetten 22 ein, die den Außenumfang der Bremsscheiben 11 vor Nässe und Verschmutzung schützen. So ergeben sich durch die Tragscheiben 12 und durch die Manschetten 22 vollständige Abdeckungen der Bremsscheiben 11 von den beaufschlagen Seiten und den Umfängen her. Der kleinste Innendurchmesser der im Querschnitt etwa winkelförmigen Manschetten 22, deren einer Schenkel 23 sich jeweils in axialer Richtung und deren anderer Schenkel 24 sich in radialer Richtung erstrecken, ist um einen Luftspalt größer, als der Außendurchmesser der Bremsscheiben 11. Das axiale Maß der Manschetten 22 ist jeweils kleiner als der Abstand der beaufschlagten Seiten der Bremsscheiben 11 von der Außenseite der Speichen 5. Dadurch können die Manschetten 22 nach Lösen ihrer Verrastungen mit den Stützscheiben 12 jeweils axial nach innen vollständig auf die Rippen 8 geschoben werden und bilden nach Entfernen der Steckachse 2 keinen in axialer Richtung überstehenden Teil der den Ausbau des Rades 1 in radialer Richtung behindern würde. The grooves 20 engage complementarily to the grooves 20 and their surrounding area shaped resilient portions 21 of sleeves 22, which the outer circumference of the Protect brake discs 11 from moisture and dirt. So result from the Support disks 12 and by the sleeves 22 complete covers of the brake disks 11 from the exposed sides and the circumference. The smallest inside diameter the in cross-section approximately angular cuffs 22, one leg 23 of which is each in the axial direction and the other leg 24 in the radial direction extend is larger by an air gap than the outer diameter of the brake discs 11. The axial dimension of the cuffs 22 is each smaller than the distance between the acted upon Sides of the brake discs 11 from the outside of the spokes 5. This allows the Collars 22 after loosening their catches with the support disks 12 each axially be pushed inwards completely onto the ribs 8 and form after removal the through axle 2 does not have any protruding part in the axial direction of the expansion of the Wheel 1 would hinder in the radial direction.

Durch diese Ausbildung ergeben sich ein einfacher Aufbau der Scheibenbremse und ein wesentlich erleichterter Ein- und Ausbau des Rades 1, so daß Reifenpannen leichter und in kürzester Zeit behoben werden können und auch ein schneller und leichter Zugang zu den Bremsscheiben 11 und Bremsbelagträgern 13, z. B. für deren Wartung, Überprüfung oder Austausch ermöglicht ist. Die Rippen 17 und 18 ergeben eine gute Versteifung der Stützscheiben 12. Gleichzeitig sorgen die Rippen 18 und die innenliegenden Rippen 8, an denen die Bremsscheiben 11 anliegen, für eine gute Wärmeabfuhr. This design results in a simple structure of the disc brake and a much easier installation and removal of the wheel 1, so that punctures can be fixed more easily and in the shortest possible time and also a quicker and easy access to the brake discs 11 and brake pad carriers 13, e.g. B. for theirs Maintenance, inspection or replacement is possible. The ribs 17 and 18 result a good stiffening of the support disks 12. At the same time, the ribs 18 and the internal ribs 8, on which the brake disks 11 rest, for good Heat dissipation.

Claims

Claims: 1. Disc brake for motor vehicles, in particular Motorcycles, with at least one circular one attached to the hub of a wheel and only acted on from the outer side of the brake disc, the circumference and is covered on the exposed side, leaving a narrow annular gap, wherein at least one hydraulically pressable brake lining carrier is also provided is, whose actuating device is on a support disc penetrated by the wheel axle which in turn is connected to a wheel guide member that supports the wheel axle is, d a d u r c h g e - indicates that a) the support disc (12) is integral with the wheel guide member (3) is formed and b) at least the same diameter has how the brake disc (11) and the braking surface of the brake disc (11) covered and c) the brake disc (11) on its circumferential area by a releasable with the support disc (12) connected cuff (22) is covered.

2. Disc brake according to claim 1 with two symmetrically on the hub fixed brake disks, characterized in that the collars (22) axially are releasable towards the wheel center plane.

3. Disc brake according to claim 2, characterized in that the axial width of each collar (22) smaller than the axial distance of the outer surface the brake disc (11) from the outer edge of connecting elements (spokes 5) between The hub (4) and rim (6) of the wheel (1) is.

4. Disc brake according to one of the preceding claims, characterized characterized in that the sleeve (22) is made of plastic.

5. Disc brake according to one of the preceding claims, characterized characterized in that the cuff (22) is resilient at an even angular distance Sections (21) which form-fit in recesses (19) of the support disc (12) are locked.

6. Disc brake according to one of the preceding claims, characterized characterized in that two diametrically opposed to each other on the support disc (12) Brake lining carrier (13) are arranged to be axially movable and each brake lining carrier (13) an actuating piston mounted in a cylindrical bore (15) of the support disc (12) (14) is assigned.

7. Disc brake according to claim 6, characterized in that the Support disk (12) has ribs (17, 18) extending approximately from the center of the support disk (12) extend into the area adjoining the cylindrical bores (15).

The invention relates to a disc brake for motor vehicles, in particular motorcycles, according to the preamble of claim 1.

In a known disc brake of this type (DE-OS 2504224) the side of the brake disc acted upon is covered by a disc-shaped one brake pad carrier secured against twisting, which is mounted on a tubular extension of the support disc is hydraulically axially displaceable. The cover on the outer circumference of the brake disc from an annular collar of the hub, whose Inner diameter slightly larger than the diameter of the disc-shaped brake lining carrier and which extends axially to the extent that it extends the circumference of the disk-shaped Brake lining covered by a considerable amount In this known disc brake the installation and removal of the wheel is difficult, as the brake lining carrier is affected by the ring-shaped, on the hub molded outer cover is enclosed and so with each expansion of the wheel all parts of the disc brake are essentially dismantled have to. This is particularly troublesome because of the hydraulic actuation line is connected directly to the brake pad carrier so that it can be removed after removal of the wheel only depends on its hydraulic line. This is the risk of Damage to the hydraulic line given.

The invention is based on the object of a disc brake to create the type in question, which greatly simplifies the structure and reducing the number of components a quick and easy installation and removal of the Bike allowed.

The invention solves this problem by the features of the claim 1. Due to the one-piece production of the support disc with the wheel guide member an inexpensive production of these parts, as well as a simplified assembly made possible by the detachable attachment of the circular collar to the support disc and in particular through their design according to claims 2 and 3, the input and Removal of the wheel much easier, as the brake lining and the brake actuation when installing and removing the wheel firmly on the wheel guide member or on the wheel guide members remain.

The feature of claim 4 enables inexpensive manufacture the cuff, while the features of claim 5, the assembly and disassembly simplify the cuff. The features of claim 6 a torque-free, symmetrical loading of the brake discs is achieved and the features of the claim 7 result in a stiffening of the support disc in its most heavily stressed area, as well as an increased cooling effect.

In the following, the invention is illustrated by means of one in the drawing Embodiment explained in more detail. It shows F i g. 1 a partial view - partial in section - a vehicle wheel with the new disc brake; and FIG. 2 is a view in the direction of arrow A with a partial section approximately along the line II-II in F i G. 1.

A vehicle wheel 1 is attached to wheel guide members by means of a plug-in axle 2 3 mounted A hub 4 of the wheel 1 is via spokes 5 with a rim 6 of the wheel 1 connected. On the outer circumference of the hub 4 there are annular reinforcements 7 with ribs 8 attached or molded The ribs 8 can be in the area of the spokes 5 or be arranged between the spokes. The reinforcements 7 have holes 9 provided, through each of which a fastening screw 10 for the brake discs 11 extends The brake disks 11 are also through the ribs 8 and the ribs 8 and the spokes 5 supported against each other. The ribs 8 extend to Outer circumference of the brake discs 11 to the outside.