Calibration certification for wheel alignment equipment

A wheel alignment and wheel technology, applied to vehicle parts, instruments, measuring devices, etc., can solve the problems of not being able to provide toe-in confirmation and precision tracking capabilities

Active Publication Date: 2006-03-01
SNAP ON INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technique does not provide the precision tracking capability used to allow confirmation
This calibration check does not use a confirmation device separate from the main calibration device and cannot provide a separate toe-in confirmation

Method used

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  • Calibration certification for wheel alignment equipment
  • Calibration certification for wheel alignment equipment
  • Calibration certification for wheel alignment equipment

Examples

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Embodiment Construction

[0033] Various examples disclosed herein relate to systems and techniques for qualifying or verifying the performance accuracy of a wheel alignment system, and / or successfully calibrating the system.

[0034] Figures 1 to 15 shows various aspects of the assay device and its components. The exemplary apparatus or apparatus includes a verification fixture or fixture, and a distance setter for the lateral spacers and diagonal spacers for setting the diagonal distance of the verification fixture. The clamp includes a frame and a bracket on the frame for supporting the head of the wheel alignment system. The device is easy to handle. The frame is configured such that the bracket supports the head at a location adjacent to the wheelbase and track dimensions of a vehicle measurable by a wheel alignment device.

[0035] The method of verifying the calibration of the wheel aligner requires positioning the measuring head of the wheel aligner at several positions on a movable jig the...

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Abstract

A disclosed jig, for use in certifying accuracy of a vehicle wheel aligner, includes two axles of equal length having stub shafts at the ends of the axles and two adjustable side spacers for releasable connection to the stub shafts. Plates for mounting heads of the aligner system also are attached to the stub shafts. Stands support the corners of the rectangular jig formed by the connected axles and spacers. The aligner system measures parameters of the jig from the attached heads. A diagonal spacer of a predetermined length, may be used in setting the diagonals of the rectangular jig during assembly to be equal. In the example disclosed, the apparatus also includes a distance setting shaft for use in setting lengths of each of the two side spacers to be equal.

Description

[0001] related application [0002] This application claims the benefit of U.S. Provisional Application 60 / 442,507, filed January 27, 2003, entitled "Calibration Certification for Wheel Alignment Equipment," the disclosure of which is hereby incorporated in its entirety into this case. technical field [0003] This application relates to techniques and equipment for measuring the performance of wheel alignment equipment for independent and traceable verification of system accuracy. Background technique [0004] Precise alignment of wheels on an automobile or other vehicle is important for proper handling of the vehicle and proper tire wear. Correct wheel alignment also reduces fuel consumption and improves vehicle safety. Typical wheel alignment systems measure parameters such as camber, caster, steering axis inclination, and toe-in. [0005] A variety of different devices and systems exist for performing one or more of the described wheel alignment measurement tasks. Whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/275
CPCG01B11/275B60G2206/93
Inventor 小詹姆士·L·代尔
Owner SNAP ON INC
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