Dual disk brake

• US 4,865,160 A
• Filed: 03/02/1989
• Issued: 09/12/1989
• Est. Priority Date: 12/18/1987
• Status: Expired due to Fees

• Current Assignee: Robert Bosch Technology Corporation
• Original Assignee: Alliedsignal Inc.
• Inventors: Casey, Gary L.
• Primary Examiner(s): Butler, Douglas C.
• Application Number:
  US07/318,387
• Time in Patent Office: 194 Days
• Field of Search: 188/18 A, 188/71.5, 188/72.4, 188/73.1, 188/73.2, 188/73.35, 188/73.37, 188/73.38, 188/73.36, 188/218 XL, 188/218 R, 188/218 A, 188/73.45 , 188/250 E, 188/250 R, 192/107 R, 192/70.17, 192/70.19, 192/70.2, 192/70.21, 192/106.2
• US Class Current: 188/18.00A
• CPC Class Codes: F16D 2055/002 assembled from a plurality of parts
• CPC Class Codes: F16D 2055/0062 Partly lined, i.e. braking surface extending over only a part of the disc circumference
• CPC Class Codes: F16D 2065/1316 radially segmented
• CPC Class Codes: F16D 2065/1348 resilient
• CPC Class Codes: F16D 2065/1368 with relative movement both radially and axially
• CPC Class Codes: F16D 2065/1392 Connection elements
• CPC Class Codes: F16D 2065/1396 Ancillary resilient elements, e.g. anti-rattle or retraction springs
• CPC Class Codes: F16D 55/40 actuated by a fluid-pressure device arranged in or one the brake
• CPC Class Codes: F16D 65/0006 Noise or vibration control
• CPC Class Codes: F16D 65/0977 Springs made from sheet metal
• CPC Class Codes: F16D 65/123 comprising an annular disc secured to a hub member; Discs characterised by means for mounting

Abstract

A disk brake comprising of a disk hub adapted to be mounted to a wheel; a plurality of annularly shaped rotors or disks; a device for mounting the rotors to the disk hub such that the rotors rotate with disk hub and are free to slide in a first direction substantially perpendicular to the direction of rotation; a pair of opposing situated brake pads, one associated with each rotor, and a device for urging the brake pads into frictional engagement with the rotors. Specially shaped liners interposed grooves of the hub and teeth of the rotors. A second set of liners is fitted between a brake caliper and the brake pads.

Claims

1. A disk brake comprising:

a disk hub adapted to be mounted to a wheel;

a plurality of flat, annularly shaped rotors or disks;

means, formed by the disk hub and rotors for attaching the rotors to the disk hub such that the rotors rotate with disk hub and are free to slide in a first direction substantially perpendicular to the direction of wheel rotation;

a plurality of pairs of opposing situated brake pads, one pair associated with each rotor and means for urging the brake pads into frictional engagement with their respective rotors,

wherein the attaching means includes a plurality of grooves, extending in the first direction and a like plurality of mating teeth slidably received within corresponding grooves, and

wherein each groove comprises a flat bottom and walls outwardly extending from the bottom, and

wherein the attaching means further includes an insert or liner between each groove and corresponding tooth, and

wherein the insert comprises a thin walled structure including a bottom adapted to seat upon the bottom of the groove and walls extending outwardly therefrom, and

wherein one of the walls of the insert is arcuately shaped to bias corresponding teeth towards an opposite wall of its corresponding groove.

2. The brake as defined in claim 1 wherein the arcuately shaped insert wall nominally urges the rotors in a direction opposite to the direction of rotation.

3. The brake as defined in claim 1 wherein the insert includes means for securing same to the brake hub, and wherein the securing means includes a plurality of tabs extending from one wall of the insert adapted to fit to an end wall of a respective disk hub.

4. The brake as defined in claim 1 wherein the plurality of grooves are formed in the disk hub and extend in the first direction, and wherein each rotor includes a plurality of mating teeth extending from an inner edge thereof.

5. The brake as defined in claim 1 wherein the angle of one of the walls is chosen to be perpendicular to a maximum resultant friction reaction force and wherein the angle of the other wall is equal and opposite in direction.