Disk Brake for a Utility Vehicle

Patent metadata

Field	Value
Publication number	US-2017191538-A1
Application number	US-201715461813-A
Country	US
Kind code	A1
Filing date	Mar 17, 2017
Priority date	Sep 17, 2014
Publication date	Jul 6, 2017
Grant date	—

Abstract

A disk brake for a utility vehicle is provided. A brake caliper of the disk brake includes a receiving chamber configured to receive a brake application device with a pivotable brake lever. The brake lever is supported at one end on a bridge supporting at least one brake piston and at the other end on a wall of the brake caliper forming a caliper head. A pivot bearing is provided for supporting the brake lever on the caliper head or the bridge. The pivot bearing includes a receptacle having a circular-arc-shaped cross-section and has a pivoting body configured to be located in the receptacle. The brake lever is retained in such a way that the brake lever is secured against displacement transversely to the pivoting direction of the brake lever by at least one securing element arranged in the region of the pivoting body extending axially on both sides of the securing element. The securing element protrudes radially in relation to the pivoting body at least in some regions and engages in a slot of the caliper head or of the bridge having a circular arc shape in the pivoting direction of the brake lever.

First claim

What is claimed is:

1 . A disk brake for a utility vehicle, comprising:
a brake caliper configured to straddle a brake disk when in an installed position, the brake caliper including
a receiving chamber;
a brake-application device being arranged in the receiving chamber and having a brake lever configured to be pivotable about a brake lever pivot axis;
a pivot bearing; and
a brake lever securing element arranged to cooperate with the pivot bearing to limit displacement of the brake lever along the brake lever pivot axis,
wherein
the brake lever is configured to be supported at a first side by the pivot bearing against a wall of a caliper head of the brake caliper and at a second side by a bridge,
the pivot bearing includes a pivoting body configured to be pivotably located in a circular-arc-shaped receptacle on at least one of a caliper head side and a bridge side of the pivoting body,
the securing element is arranged between axially-extending portions of the pivoting body,
the securing element protrudes radially outward away an outer surface of the pivoting body and is configured to cooperate with a corresponding receptacle-side circular-arc-shaped recess in the at least one receptacle to permit circumferential movement of the securing element about the brake lever pivot axis while limiting movement of the securing element along the brake lever pivot axis.

2 . The disk brake as claimed in claim 1 , wherein
the securing element engages in positively locking fashion into the brake lever and the at least one of the caliper head and the bridge having the receptacle-side recess.

3 . The disk brake as claimed in claim 2 , wherein
the securing element is formed as a disk.

4 . The disk brake as claimed in claim 3 , wherein
the securing element is formed as a ring-shaped disk having a constant outer radius.

5 . The disk brake as claimed in claim 2 , wherein
the securing element is formed as a parallel key configured to which engage into a recess of the brake lever and the receptacle-side recess of the at least one of the caliper head and the bridge.

6 . The disk brake as claimed in claim 4 , wherein
the pivoting body is a roller, and the ring-shaped disk is guided on the roller.

7 . The disk brake as claimed in claim 6 , wherein
the roller and the ring-shaped disk are configured such that the ring-shaped disk is either guided loosely or fixed on the roller.

8 . The disk brake as claimed in claim 1 , wherein
the pivoting body is formed as an integrally formed bead of the brake lever extending parallel to the brake lever rotation axis.

9 . The disk brake as claimed in claim 8 , wherein
the securing element is a ring-shaped disk, and the brake lever bead includes a bead-side circular-arc-shaped recess configured to receive a first portion of the ring-shaped disk while a second portion of the ring-shaped disk is engaged with the receptacle-side circular-arc-shaped recess.

10 . The disk brake as claimed in claim 8 , wherein
the securing element is integrally formed on the integrally formed bead of the brake lever.

11 . The disk brake as claimed in claim 1 , wherein
the brake lever and the caliper head each have an opposing slot configured to receive the securing element.

12 . The disk brake as claimed in claim 1 , wherein
the caliper head has at least one of
at least one bearing block having receptacle in which the receptacle-side recess is formed, and
two bearing blocks arranged along the brake lever rotation axis with the receptacle-side recess being formed in an axial space between the two bearing blocks.

13 . The disk brake as claimed in claim 1 , wherein
an axis of rotation of the pivoting body, a radius of curvature of the receptacle-side recess and a radius of curvature of the receptacle are co-axial.

14 . The disk brake as claimed in claim 4 , wherein
an axial thickness of the ring-shaped disk corresponds to a width of the receptacle-side recess, such that the ring-shaped disk is movable in the circumferential direction without play.

15 . The disk brake as claimed in claim 4 , wherein
a radius of curvature of the receptacle-side recess corresponds at least to an outer radius of the ring-shaped disk.

16 . The disk brake as claimed in claim 4 , wherein
the ring-shaped disk is composed of hardened steel.

17 . A brake caliper configured to straddle a brake disk when in an installed position, comprising:
a receiving chamber configured to receive a brake application device; an installation opening configured to allow passage of the brake application device into the receiving chamber; and an integrally-formed dome configured to receive a brake lever of the brake application device, wherein
the receiving space is delimited by a wall of the caliper opposite the installation opening, and
the wall on a side facing the installation opening includes a recess extending toward the direction of the dome.

18 . The brake caliper as claimed in claim 17 , wherein
the recess is circular-arc-shaped.

Assignees

• Knorr Bremse Systeme Fuer Nutzfahrzeuge Gmbh

Inventors

• Adamczyk Philipp
• Scheufler Christian
• Klingner Matthias

Classifications

• F16D55/2255

  in which the common actuating member is pivoted · CPC title

• F16D65/183

  with force-transmitting members arranged side by side acting on a spot type force-applying member · CPC title

• F16D2125/28

  Cams; Levers with cams · CPC title

• F16D2125/26

  Cranks · CPC title

• F16D65/14 Primary

  Actuating mechanisms for brakes; Means for initiating operation at a predetermined position (brake control systems, parts thereof B60T) · CPC title