US 7,007,575 B2Granted

Apparatus and method for automatically compensating for lateral runout

AssigneePro-Cut Licensing Company, LLC

InventorsHarold Newell, John Wiggins

Life of this patent

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Abstract

An on-car disc brake lathe system for resurfacing a brake disc of a vehicle brake assembly includes a lathe body with a driving motor, a cutting head operably attached to the lathe body, and a drive shaft. The system also includes an alignment system having an electronic controller, input and output adaptors configured to rotate with the drive shaft, one or more adjustment discs, and an adjustment mechanism. The adjustment disc is positioned between the input adaptor and the output adaptor, and an axial alignment of the input adaptor relative to the output adaptor may be varied based on a rotational orientation of the adjustment disc. The adjustment mechanism is configured to change the rotational orientation of the adjustment disc in response to commands from the electronic controller.

Claims10

Dependent claims

An on-vehicle disc brake lathe system for resurfacing a brake disc of a vehicle brake assembly having a hub rotation axis, the brake lathe system comprising:

a lathe body with a driving motor;
a drive shaft having a drive shaft axis and extending from the lathe body and operably connected to the driving motor so as to be rotated by the driving motor;
an alignment coupling connected to and rotatable with the drive shaft and configured to provide an adjustable connection between the drive shaft and the vehicle brake assembly, the alignment coupling being configured to vary an axial alignment between the hub rotation axis and the drive shaft axis;
a runout sensor operable to measure a lateral runout condition of the vehicle brake assembly and to produce a runout signal corresponding to the lateral runout condition;
and
an electronic feedback control system operable to adjust the adjustable connection of the alignment coupling based on the runout signal so as to improve the axial alignment between the hub rotation axis and the drive shaft axis.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/253,888Filed 25 Sep 2002 · continuation
Priority: 4 Sep 1996
Published: US 2003/0066397 A110 Apr 2003
Granted: 7 Mar 2006
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

G01B 5/255
For measuring angles or tapers; for testing the alignment of axes: for testing wheel alignment
B23B 5/04
Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor: for reconditioning hubs or brake drums…
B23B 2235/045
Machining of brake discs: simultaneous machining of both sides of the brake disc
B23B 2235/21
Turning of brake discs, drums or hubs: compensation of run out

Family

Application08/706,512Parent of this continuation-in-part · filed 4 Sep 1996
Application08/706,514Parent of this continuation-in-part · filed 4 Sep 1996
Application09/182,429Parent of this continuation · filed 30 Oct 1998
US 5,974,878 AParent of this continuation-in-part · filed 2 Nov 1999
US 6,050,160 AParent of this continuation-in-part · filed 18 Apr 2000
Application09/562,917Parent of this continuation · filed 2 May 2000
US 6,101,911 AParent of this continuation · filed 15 Aug 2000
US 2003/0066397 A1Pre-grant publication · published 10 Apr 2003
US 6,474,203 B1Parent of this continuation
Application09/182,429Parent of this continuation-in-part
US 7,007,575 B2This patent

From the US filing history. Foreign family members aren’t listed.