DE102006029428B3 - Disc brake for commercial motor vehicle, has brake caliper overlapping brake disc that is connected with brake lining, where retaining bracket is mounted at caliper in removable manner and lies against screw cap under compression strength - Google Patents

Abstract

The brake has a brake caliper overlapping a brake disc that is connected with a brake lining, and a screw cap that locks and seals a retaining area provided in the brake caliper for a functional part on a side of the functional part, which faces the brake disc. A retaining bracket (3) is mounted at the brake caliper in a removable manner and lies against the screw cap under compression strength. The retaining bracket has a compression spring, which rests against the screw cap, where the compression spring is designed as a bracket spring (4).

Description

The The invention relates to a disc brake for a commercial vehicle accordingly The generic term of claim 1.

Such a disk brake is for example from the DE 199 07 958 A1 and the DE 198 55 614 C1 known. It is shown and described that a brake-disk-side mounting opening of a receiving chamber provided in the brake caliper, are arranged in the functional parts such as adjusting spindles Zuspanneinrichtung or the like, closed by means of the closure lid, so as to protect the interior of the receiving space and thus the functional parts from dirt and weathering , In addition, the closure plate serves as a support part of various attachments, such as bellows, gaskets and the like.

The Attachment of the closure plate on the caliper is done by means of Screws circumferentially arranged in the peripheral area and in the Caliper screwed or through this and the closure plate guided are.

Indeed is this type of attachment, in particular a torque-monitored Tightening the screws counts, very time consuming and therefore costly and thus stands for one production optimization.

Around an effective sealing of the closure plate relative to the To reach the caliper, the cap is sealed on the caliper. For this purpose, for example, comes a cured sealing cord used in an external pre-assembly initially as a two-component seal is mounted on the closure lid. Naturally, this type of application To realize a seal only with a considerable amount of time. About that In addition, the sealing surface must the caliper, usually is formed as a casting, that is, the area where the sealing cord is applied, machined, in particular by milling.

There Disc brakes are produced as serial parts in large numbers, a simple and quick production is of special importance to, who do not meet the known constructive solutions.

Of the Invention is based on the object, a disc brake of the generic type so that they become simpler and cheaper can be produced and assembled is.

These Task is achieved by a disc brake with the features of the claim 1 solved.

By this type of connection of the cap with the caliper are preparatory work before mounting the cover, as in the prior art, for example by the introduction threaded holes in the caliper were mandatory, not necessary anymore.

Around an additional Securing the closure lid can, as after another Thoughts of the invention provided, the cap with the Glued caliper. In this case, the adhesive forms, preferably in liquid or pastier Consistency is used, moreover a seal, allowing for the introduction of a seal in one Pre-assembly can be dispensed with.

in this respect provides the combination headband / bond a high fastening security, the in driving the Commercial vehicle fully meet the loads occurring.

To an advantageous embodiment of the invention is provided that the headband detachable with the caliper is connected.

For this can the headband claw-shaped at least at one end be trained and with this claw in one in a lateral Insert flank of caliper inserted groove.

Preferably is the other end of the retaining bracket solvable connected to the caliper. In this case, the headband has a end angled tongue, which provided with a detent opening is, which corresponds to a detent pin, which on a lateral Sealing plug of the caliper is attached, this Closing plug closes a lateral mounting hole of the caliper.

Prefers is the detent opening keyhole-like formed, wherein the angled tongue of the retaining clip in Area of larger diameter attached to the locking pin and then moved accordingly is, under Hintergreifung a mushroom head of the locking pin.

On the one hand to hold the headband safely and on the other hand exert sufficient pressure to secure the position of the closure lid, the headband is according to the invention under compressive stress on the closure lid. To generate the compressive stress, the headband on resilient areas, preferably in the form of at least one leaf-shaped bow spring, which is supported on the closure plate and the rest of the angled tongue in the locked position against the Locking peg presses.

Of course they are also other embodiments of compression springs conceivable, as well as their number, preferably a compression spring is provided which is approximately in the middle region of the closure lid is applied.

To Another idea of the invention is provided, the headband and the compression spring, in particular the leaf-shaped bow spring, in one piece, where the headband altogether expediently formed from a spring plate and produced by punching and edges is.

By This training and method of production is extremely rational and therefore inexpensive Production possible, to which moreover the simple installation of the retaining clip or the closure lid added so that the manufacturing and Overall assembly costs reduced to quite a remarkable extent become.

The mentioned retaining groove arranged in a lateral flank of the caliper, in which engages the one formed as a claw end of the retaining clip can be incorporated in the manufacture of the caliper, i. e., because the caliper is usually is designed as a casting, be poured with the same. of course is This also possible with little production effort, especially a special mechanical machining of the retaining groove is not required is.

Further advantageous embodiments of the invention are characterized in the subclaims.

One embodiment The invention will be described below with reference to the accompanying drawings.

It demonstrate:

1 a headband according to the invention in a perspective view

2 a partial section of a disc brake, also in a perspective view

3 a detail of the invention, shown in perspective.

In the 1 is one on the caliper 1 ( 2 ) attachable headband 3 represented, with which a closure plate 2 on the caliper 1 durable under compressive stress, the rest with the caliper 1 preferably glued.

The caliper 1 is part of a disc brake for a commercial vehicle, wherein the caliper 1 a brake disc engageable on both sides in operative connection with brake pads overlaps.

The caliper 1 has at least one receiving space for functional parts and is on its side facing the brake disc with the closure lid 2 sealed.

The headband 3 preferably consists of a spring strip and is angled on both end sides. This is an angling as a claw-shaped tab 7 formed, whose free end 8th parallel to the headband 3 otherwise angled.

This free end 8th engages in a caliper 1 provided holding groove 9 one, in the usually formed as a casting caliper 1 is poured in with.

The tab 7 opposite bend is as a tongue 5 trained and runs parallel rectified to the tab 7 ,

In the tongue 5 is a keyhole-like detent opening 6 introduced, with the headband 3 detachable on the caliper 1 is fastened.

The detent opening corresponds 6 with a mushroom-shaped locking pin 11 putting on a stopper 10 is molded, the one not shown, in the caliper 1 provided lateral mounting opening closes, which on the retaining groove 9 opposite side of the caliper 1 is provided.

For applying the compressive stress with which the headband 3 on the closure lid 2 is present, is on the headband 3 a bow spring 4 formed, which is designed in the sense of a leaf spring and such a pressure for acting as an abutment cap 2 exerts, so that the wall of the detent opening 6 in its narrower area against the shank of the locking pin 11 is pressed, so that on the one hand, the cap 2 is held securely and on the other hand, the headband 3 is locked spring-loaded.

1

caliper

2

cap

3

headband

4

bow spring

5

tongue

6

latching opening

7

flap

8th

claw

9

retaining groove

10

sealing plug

11

latching pin

Claims (14)

Disc brake for a commercial vehicle, with a caliper ( 1 ), which engages over a brake disc operatively engageable on both sides brake disc, and at least one, one in the caliper ( 1 ) provided receiving space for functional parts on its side facing the brake disc facing and sealed fitting closure cap ( 2 ), characterized in that on the caliper ( 1 ) a headband ( 3 ), which under compressive stress on the closure lid ( 2 ) is present. Disc brake according to claim 1, characterized in that the retaining bracket ( 3 ) releasably on the caliper ( 1 ) is attached. Disc brake according to claim 1 or 2, characterized in that the retaining bracket ( 3 ) is formed from a metal strip. Disc brake according to one of the preceding claims, characterized in that the retaining bracket ( 3 ) has a compression spring on the closure cover ( 2 ) is present. Disc brake according to one of the preceding claims, characterized in that the compression spring as bow spring ( 4 ) is trained. Disc brake according to one of the preceding claims, characterized in that the bow spring ( 4 ) to the headband ( 3 ) is otherwise formed. Disc brake according to one of the preceding claims, characterized in that the retaining bracket ( 3 ) at one end as a claw-shaped tab ( 7 ) is trained. Disc brake according to one of the preceding claims, characterized in that the tab ( 7 ) at its free end an angled claw ( 8th ), which in a retaining groove ( 9 ) of the caliper ( 1 ) is present. Disc brake according to claim 8, characterized in that the retaining groove ( 9 ) in the formed as a casting caliper ( 1 ) is introduced during casting. Disc brake according to claim 7, characterized in that that of the tab ( 7 ) opposite end of the retaining clip ( 3 ) is formed as an angled tongue, the rectified and parallel to the tab ( 7 ) runs. Disc brake according to claim 10, characterized in that the tongue ( 5 ) a detent opening ( 6 ) with one on the caliper ( 1 ) arranged locking pin ( 11 ) corresponds. Disc brake according to claim 11, characterized in that the locking pin ( 11 ) is mushroom-shaped. Disc brake according to claim 11, characterized in that the detent opening ( 6 ) is keyhole shaped. Disc brake according to claim 11 or claim 12, characterized in that the locking pin ( 11 ) on a sealing plug ( 10 ) is provided, with a lateral mounting opening of the caliper ( 1 ) is closed.