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Patent Searching and Data


Title:
LOADWHEEL ASSEMBLY FOR TIRE TESTING SYSTEMS
Document Type and Number:
WIPO Patent Application WO1998034800
Kind Code:
A3
Abstract:
A loadwheel assembly for a tire testing machine includes a loadwheel with a tire contacting surface supported along substantially its entire circumference by one or more solid discs. The loadwheel consistently measures forces and generates electrical signals corresponding to the forces to more precisely determine tire uniformity. The loadwheel, formed as an aluminum weldment which reduces manufacturing costs, rotates about spindles provided with load cells and mounted to a C-shaped carriage. The carriage has upper and lower legs with the spindles fixed to one side of each leg such that the load cells are easily accessible from one side of the carriage. The top and bottom legs of the carriage are selectively attachable to a guide piece that slidably engages a complementarily shaped member secured to the machine frame to permit the carriage to be secured to the frame with the load cells disposed on either side of the carriage legs, thereby providing access to the load cells regardless of the layout of the machine. The loadwheel assembly includes a motor and gearbox integrated with and directly driving a ball screw connected to the carriage to move the loadwheel toward and away from the tire under test.

Inventors:
LEES DAVID W SR
BORMET FRANCIS J
CUKELJ RICHARD J
JELLISON FRANK R
NEIFERD KEITH A
REYNOLDS DENNIS ALLYN
QUINN CHRISTY
Application Number:
PCT/US1998/001325
Publication Date:
November 19, 1998
Filing Date:
January 22, 1998
Export Citation:
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Assignee:
ILLINOIS TOOL WORKS (US)
International Classes:
B60C25/00; B60C25/132; G01M17/02; (IPC1-7): B60C25/00
Foreign References:
US5067348A1991-11-26
Other References:
See also references of EP 0954452A4
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