Drum brake which can be operated by an electric motor

Patent metadata

Field	Value
Publication number	US-2016102720-A1
Application number	US-201414895299-A
Country	US
Kind code	A1
Filing date	Jun 3, 2014
Priority date	Jun 6, 2013
Publication date	Apr 14, 2016
Grant date	—

Abstract

A drum brake module for motor vehicles, the drum brake module being driven by an electric motor and having at least one parking brake function, includes an electromechanical cable pull actuator which is fastened on the anchor plate with the aid of an adapter. The adapter is designed as a one-piece, thin walled frame having at least one fastening flange for receiving the cable pull actuator and is held in place on the anchor plate.

First claim

1 . An electromotively actuated drum brake module with improved cable pull actuator arrangement for motor vehicles, comprising an electromechanical cable pull actuator which is arranged on an outer side of the anchor plate and which serves for driving a rotation-translation converter for converting a rotational drive input rotary movement into a translational actuation movement of brake pads, which brake pads are arranged on an inner side, averted from the cable pull actuator of the anchor plate in an interior of a brake drum, such that said brake pads can perform an actuation movement in the direction of the brake drum, and wherein an adapter is arranged between cable pull actuator and anchor plate, wherein the adapter is provided in the form of a unipartite and thin-walled frame which, on one side, has at least one planar fastening flange for accommodating the cable pull actuator, wherein the frame is fixed at the other side to the anchor plate, and in that the frame is provided in unipartite form with multiple thin struts which are arranged at an angle and obliquely with respect to one another and which extend between fastening flange and anchor plate.

2 . The electromotively actuated drum brake module for motor vehicles as claimed in claim 1 , wherein the thin struts are in the form of planar and thin wall panels which are connected to one another and/or to the fastening flange by way of flexurally stiff joints.

3 . The electromotively actuated drum brake module for motor vehicles as claimed in claim 2 , wherein one or more wall panels have one or more cutouts.

4 . The electromotively actuated drum brake module for motor vehicles as claimed in claim 2 , wherein the junctions are stiffened by way of ribs.

5 . The electromotively actuated drum brake module for motor vehicles as claimed in claim 1 , wherein the struts, which are arranged in skewed fashion relative to the anchor plate, of the adapter are seated on the anchor plate, substantially parallel to an outer side of the anchor plate, by way of at least three support areas or foot points.

6 . The electromotively actuated drum brake module for motor vehicles as claimed in claim 2 , wherein fastening flange and wall panels form a regular or irregular polyhedron which is in particular of tetrahedral or pyramidal form.

7 . The electromotively actuated drum brake module for motor vehicles as claimed in claim 1 , wherein the adapter is in the form of a sheet-metal molded part or plastics part.

8 . The electromotively actuated drum brake module for motor vehicles as claimed in claim 1 , wherein the adapter with fastening flange is assigned a separate cable pull guide body with a curved cable pull receptacle which has an at least partially U-shaped guide cross section which has at least two mutually oppositely arranged walls of raised form.

9 . The electromotively actuated drum brake module for motor vehicles as claimed in claim 8 , wherein the cable pull guide body is inserted in positively locking fashion, proceeding from an inner side of the carrier plate into a receptacle and is engaged over by a section of the cable pull.

10 . The electromotively actuated drum brake module for motor vehicles as claimed in claim 9 wherein, the cable pull guide body forms a narrowed cable pull guide channel in which the cable pull is at least partially engaged over or engaged around in funnel-shaped, narrowed fashion.

11 . The electromotively actuated drum brake module for motor vehicles as claimed in claim 8 , wherein the cable pull guide body is of a multi-part construction composed of a holding component and of a cable pull guide channel component.

12 . The electromotively actuated drum brake module for motor vehicles as claimed in claim 8 , wherein the cable pull guide body is constructed at least partially from a plastics material comprising at least one incorporated solid lubricant component, and wherein the cable pull guide body is fastened, together with the support device to the anchor plate.

13 . The electromotively actuated drum brake module for motor vehicles as claimed in claim 8 wherein, the cable pull guide body forms a narrowed cable pull guide channel in which the cable pull is at least partially engaged over or engaged around in funnel-shaped, narrowed fashion.

Assignees

• Continental Teves Ag & Co Ohg

Inventors

• Bach Uwe
• Hoffmann Jens
• Görrissen Niclas
• Ritter Wolfgang
• Sefo Ahmed
• Von Hayn Holger

Classifications

• F16D51/28

  mechanically actuated · CPC title

• F16D2125/60

  Cables or chains, e.g. Bowden cables · CPC title

• B60T7/102

  by means of a tilting lever · CPC title

• F16D2121/24

  using motors · CPC title

• B60T7/085

  by electrical means, e.g. travel, force sensors · CPC title