Disk brake and production method for a disk brake

Patent metadata

Field	Value
Publication number	US-10563718-B2
Application number	US-201213619260-A
Country	US
Kind code	B2
Filing date	Sep 14, 2012
Priority date	Mar 17, 2010
Publication date	Feb 18, 2020
Grant date	Feb 18, 2020

Abstract

A disk brake having a brake caliper and a brake actuation mechanism being supported in it, in which the brake actuation mechanism includes an amplification mechanism for introducing a clamping force, an adjustment device for compensation of lining wear with a torque clutch, a thrust element for transmitting the clamping force onto a brake disc and a reset device, which components are arranged around a rod, in which the torque clutch, for example, is formed as a roller-ramp-mechanism. A spring force can act onto the torque clutch by means of the reset device thereby forming a torque limit. Furthermore the invention relates to an assembly method for such a disc brake.

First claim

What is claimed is:

1. A disc brake comprising a brake caliper, which overlaps at least one brake disc, and a brake actuation mechanism having
amplification mechanism configured to introduce a clamping force, the amplification mechanism including a lever,
an adjustment device configured to compensate for lining wear, the adjustment device comprising a torque clutch and a sprag spring,
a thrust element configured to transmit the clamping force onto the brake disc, and
a reset device,
wherein the amplification mechanism, the adjustment device, the thrust element and the reset device are mounted and supported in the brake caliper by means of a rod and functionally interacting by means of the sprag spring, the rod being non-moveably supported in axial direction in a housing of the brake caliper and non-rotationally attached to a rear portion of the housing, characterized in that the torque clutch is formed as a roller-ramp-mechanism which acts between the amplification mechanism and the thrust element, in which rollers of the roller-ramp-mechanism are moveably arranged co-axially with respect to the rod, and
wherein the adjustment device is arranged radially inside a threaded spindle of the thrust element;
wherein the rod keeps the amplification mechanism, the adjustment device, the thrust element and the reset device together as a self-supported assembly unit.

2. A disc brake comprising a brake caliper, which overlaps at least one brake disc, and a brake actuation mechanism having
an amplification mechanism configured to introduce a clamping force, the amplification mechanism including a lever,
an adjustment device configured to compensate for lining wear, the adjustment device comprising a torque clutch and a sprag spring,
a thrust element configured to transmit the clamping force onto the brake disc, and
a reset device,
wherein the amplification mechanism, the adjustment device, the thrust element and the reset device are mounted and supported in the brake caliper by means of a rod and functionally interacting by means of the sprag spring, the sprag spring being radially mounted around said rod with a radial clearance between the sprag spring and said rod, the rod being non-moveably supported in axial direction in a housing of the brake caliper and non-rotationally attached to a rear portion of the housing, characterized in that the amplification mechanism, the adjustment device, the thrust element and the reset device on the one hand and the rod on the other hand are configured and dimensioned in axial direction such that in the assembled state of the brake actuation mechanism the reset device is biased thereby forming a defined torque limit for the torque clutch, and
wherein the adjustment device is arranged radially inside a threaded spindle of the thrust element;
wherein the torque clutch is formed as a roller-ramp-mechanism which acts between the amplification mechanism and the thrust element, in which rollers of the roller-ramp-mechanism are moveably arranged co-axially with respect to the rod.

3. A disc brake comprising a brake caliper, which overlaps at least one brake disc, and a brake actuation mechanism having
an amplification mechanism configured to introduce a clamping force, the amplification mechanism including a lever,
an adjustment device configured to compensate for lining wear, the adjustment device comprising a torque clutch and a sprag spring,
a thrust element configured to transmit the clamping force onto the brake disc, and
a reset device,
wherein the amplification mechanism, the adjustment device, the thrust element and the reset device are mounted and supported in the brake caliper by means of a rod and functionally interacting by means of the sprag spring, the rod being non-moveably supported in axial direction in a housing of the brake caliper and non-rotationally attached to a rear portion of the housing, characterized in that the torque clutch is formed as a roller-ramp-mechanism which acts between the amplification mechanism and the thrust element, in which rollers of the roller-ramp-mechanism are moveably arranged co-axially with respect to the rod, and
wherein the adjustment device is arranged radially inside a threaded spindle of the thrust element;
wherein the roller-ramp-mechanism is arranged outside of the flow of forces of the clamping force.

4. The disc brake according to claim 3 , wherein the roller-ram p-mechanism interacts with at least one low friction-bearing element.

5. A disc brake comprising a brake caliper, which overlaps at least one brake disc, and a brake actuation mechanism having
an amplification mechanism configured to introduce a clamping force, the amplification mechanism including a lever,
an adjustment device configured to compensate for lining wear, the adjustment device comprising a torque clutch and a sprag spring,
a thrust element configured to transmit the clamping force onto the brake disc, and
a reset device,
wherein the amplification mechanism, the adjustment device, the thrust element and the reset device are mounted and supported in the brake caliper by means of a rod and functionally interacting by means of the sprag spring, the rod being non-moveably supported in axial direction in a housing of the brake caliper and non-rotationally attached to a rear portion of the housing, characterized in that the torque clutch is formed as a roller-ramp-mechanism which acts between the amplification mechanism and the thrust element, in which rollers of the roller-ramp-mechanism are moveably arranged co-axially with respect to the rod, and
wherein the adjustment device is arranged radially inside a threaded spindle of the thrust element;
wherein the lever is supported against at least one eccentric support being transverse to the rod, and at least one force-transmitting element is arranged between the lever and the thrust element by means of which the clamping force from the lever is introduced into the thrust element.

6. The disc brake according to claim 5 , wherein the threaded spindle of the thrust element is in threaded engagement with a thrust piece which cooperates with a brake lining, in which the thrust piece is axially non-rotatably guided in the housing of the brake caliper.

7. A disc brake comprising a brake caliper, which overlaps at least one brake disc, and a brake actuation mechanism having
an amplification mechanism configured to introduce a clamping force,
an adjustment device configured to compensate for lining wear, the adjustment device comprising a torque clutch and a sprag spring,
a thrust element configured to transmit the clamping force onto the brake disc, and
a reset device,
wherein the amplification mechanism, the adjustment device, the thrust element and the reset device are mounted in the brake caliper by means of a rod, thereby functionally interacting by means of the sprag spring, the sprag spring being radially mounted on said rod, the rod being non-moveably supported in axial direction in a housing of the brake caliper, characterized in that the torque clutch is formed as a roller-ramp-mechanism which acts between the amplification mechanism and the thrust element, in which rollers of the roller-ramp-mechanism are moveably arranged co-axially with respect to the rod,
wherein the amplification mechanism comprises a lever which is supported against at least one eccentric support being transverse to the rod, in which at least one force-transmitting element is arranged between the lever and the thrust element by means of which the clamping force from the lever is introduced into the thrust element,
wherein the thrust element comprises an adjustment spindle, which is in threaded engagement with a thrust piece which cooperates with a brake lining, in which the thr

Assignees

• Sandberg Stefan
• Welin Hans
• Haldex Brake Prod Ab

Inventors

• Sandberg Stefan
• Welin Hans

Classifications

• Y10T29/49826

  Assembling or joining · CPC title

• F16D55/227

  by two {or more} pins · CPC title

• F16D2125/28

  Cams; Levers with cams · CPC title

• F16D65/0043

  Brake maintenance and assembly, tools therefor · CPC title

• F16D66/026

  indicating different degrees of lining wear · CPC title