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1. WO2000026631 - METHOD FOR TIRE UNIFORMITY CORRECTION

Publication Number WO/2000/026631
Publication Date 11.05.2000
International Application No. PCT/US1999/025298
International Filing Date 28.10.1999
Chapter 2 Demand Filed 26.05.2000
IPC
B24B 1/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
1Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
B24B 5/50 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
24GRINDING; POLISHING
BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
5Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
50characterised by a special design with respect to properties of the material of non-metallic articles to be ground, e.g. strings
B29C 35/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
35Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
B60C 11/11 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
11Tyre tread bands; Tread patterns; Anti-skid inserts
03Tread patterns
11in which the raised area of the pattern consists only of isolated elements, e.g. blocks
G01M 1/34 2006.01
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
1Testing static or dynamic balance of machines or structures
30Compensating unbalance
34by removing material from the body to be tested, e.g. from the tread of tyres
CPC
B60C 11/1376
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
11Tyre tread bands; Tread patterns; Anti-skid inserts
03Tread patterns
13characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
1376Three dimensional block surfaces departing from the enveloping tread contour
B60C 25/00
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
25Apparatus or tools adapted for mounting, removing or inspecting tyres
G01M 17/024
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
17Testing of vehicles
007Wheeled or endless-tracked vehicles
02Tyres
022the tyre co-operating with rotatable rolls
024combined with tyre surface correcting or marking means
Y10S 152/902
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
152Resilient tires and wheels
902Non-directional tread pattern having no circumferential rib and having blocks defined by circumferential grooves and transverse grooves
Y10S 451/92
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
451Abrading
92Tire "rounding"
Applicants
  • CONTINENTAL GENERAL TIRE, INC. [US]/[US]
Inventors
  • GAST, George, E., Jr.
  • GORMISH, Kenneth, J.
  • ZOLTON, Gary, Paul
  • EDWARDS, Henry, Buel, II
Agents
  • KASTELIC, Tara, A.
Priority Data
09/183,92530.10.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR TIRE UNIFORMITY CORRECTION
(FR) METHODE POUR CORRIGER L'UNIFORMITE D'UN PNEU
Abstract
(EN)
A method for directional force correction of pneumatic tires that simultaneously corrects radial and tangential force exerted by the tire (12). The method allows for the correction of tangential force regardless of the rotational direction of the tire (12). This invention accomplishes this end through an improved force correction technique, wherein at least two rotary grinders (16, 24) are employed. In the inventive method, the rotational direction of one grinder (16) is reversed in relation to the rotational direction of the other grinder(s) (24). Therefore, at least one grinder (16) will engage the tire in an 'up-grinding' manner, and at least one grinder (24) will engage the tire in a 'down-grinding' manner. The result is that across the width of the tire's (12) tread surface, some tread blocks will have a 'heel-to-toe' appearance, while others will appear 'toe-to-heel'. The effect is that, no matter what direction the tire is rotating while in use on an automobile, tangential force variation has been reduced.
(FR)
L'invention porte sur une méthode de correction de la force directionnelle de pneumatiques, qui corrige simultanément la force radiale et la force tangentielle exercées par le pneu (12). Cette méthode permet de corriger la force tangentielle indépendamment du sens de rotation du pneu (12). Cela est réalisé par la mise en oeuvre d'une technique améliorée de correction de force faisant appel à au moins deux meules rotatives (16, 24). Dans la méthode de l'invention, le sens de rotation d'une des meules (16) est inversée par rapport au sens de rotation de l'autre meule (24). Ainsi, au moins une meule (16) entre en prise avec le pneu de manière à effectuer une 'rectification par le haut', et au moins une meule (24) entre en prise avec le pneu de manière à effectuer une 'rectification par le bas'. Il en résulte que, sur la largeur de la surface de roulement du pneu (12), quelques blocs de roulement présentent un aspect 'dent de scie' tandis que d'autres blocs présentent un aspect 'pointe-talon'. On obtient ainsi une réduction de la variation de la force tangentielle, quelle que soit le sens de rotation du pneu pendant l'utilisation, lorsque celui-ci est monté sur une voiture.
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