GB1212701A - Method and apparatus for testing pneumatic tyres - Google Patents

Method and apparatus for testing pneumatic tyres

Info

Publication number
GB1212701A
GB1212701A GB102467A GB102467A GB1212701A GB 1212701 A GB1212701 A GB 1212701A GB 102467 A GB102467 A GB 102467A GB 102467 A GB102467 A GB 102467A GB 1212701 A GB1212701 A GB 1212701A
Authority
GB
United Kingdom
Prior art keywords
rotation
drum
tyre
wheel
variations
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB102467A
Inventor
Vernon Eric Gough
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dunlop Co Ltd
Original Assignee
Dunlop Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CA904048A priority Critical patent/CA904048A/en
Application filed by Dunlop Co Ltd filed Critical Dunlop Co Ltd
Priority to GB102467A priority patent/GB1212701A/en
Priority to AU34466/68A priority patent/AU411165B2/en
Publication of GB1212701A publication Critical patent/GB1212701A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/02—Tyres
    • G01M17/022—Tyres the tyre co-operating with rotatable rolls

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

1,212,701. Testing tyres. DUNLOP CO. Ltd. 3 Jan., 1968 [7 Jan., 1967], No. 1024/67. Heading B7C. [Also in Division G1] Data enabling the variations in drag force set up during rotation of a tyre to be calculated is obtained by rotating the tyre in contact with a rotatable drum, the axes of rotation of tyre and drum being parallel to each other and constrained during measurement to a fixed separating distance, measuring periodically the instantaneous speeds of rotation of tyre and drum or the relative speeds thereof, and comparing these speeds to register variations between them from which variations in drag force may be calculated. The representations of the instantaneous speeds may be registered on an X-Y plotter, which may be mechanical or electrical. Alternatively, the X-Y plotter may be replaced or supplemented by an oscillograph. In a typical example, twin opposed bevel gear-wheels are drivably connected to wheel and drum so that the drive to one gear-wheel is in a contrary sense to the other, and the gear-wheels are interconnected by an interposed pair of planet bevel gears freely rotatably mounted on a common shaft carried by a cage so that the instantaneous relative rotational speed of wheel and drum is determinable from the instantaneous rate of rotation of the cage. The variation is examined by using a mechanical X-Y plotter, the X-axis representing the speed of rotation of the wheel and the Y axis representing the speed of rotation of the cage. Departure from a straight line plot indicates variations in effective rolling radius. In other examples, electrical analogues of the gear system are used. Specification 951,606 is referred to.
GB102467A 1967-01-07 1967-01-07 Method and apparatus for testing pneumatic tyres Expired GB1212701A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA904048A CA904048A (en) 1967-01-07 Method and apparatus for testing pneumatic tyres
GB102467A GB1212701A (en) 1967-01-07 1967-01-07 Method and apparatus for testing pneumatic tyres
AU34466/68A AU411165B2 (en) 1967-01-07 1968-03-04 Method and apparatus for testing pneumatic tyres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB102467A GB1212701A (en) 1967-01-07 1967-01-07 Method and apparatus for testing pneumatic tyres

Publications (1)

Publication Number Publication Date
GB1212701A true GB1212701A (en) 1970-11-18

Family

ID=9714819

Family Applications (1)

Application Number Title Priority Date Filing Date
GB102467A Expired GB1212701A (en) 1967-01-07 1967-01-07 Method and apparatus for testing pneumatic tyres

Country Status (2)

Country Link
CA (1) CA904048A (en)
GB (1) GB1212701A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273542A2 (en) * 1986-10-17 1988-07-06 Illinois Tool Works Inc. Apparatus and method for predicting fore/aft forces generated by tires
JP2004533346A (en) * 2001-06-01 2004-11-04 ミシュラン ルシェルシェ エ テクニク ソシエテ アノニム Analysis and control method of tire uniformity
US7790075B2 (en) 2005-12-27 2010-09-07 Michelin Recherche Et Technique Multi harmonic tire uniformity correction

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109781336B (en) * 2019-03-07 2023-11-03 中国科学院南京地理与湖泊研究所 Device and method for simulating and measuring drag force exerted by aquatic plants at different flow rates

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273542A2 (en) * 1986-10-17 1988-07-06 Illinois Tool Works Inc. Apparatus and method for predicting fore/aft forces generated by tires
EP0273542A3 (en) * 1986-10-17 1990-02-07 Eagle-Picher Industries, Inc. Apparatus and method for predicting fore/aft forces generated by tires
JP2004533346A (en) * 2001-06-01 2004-11-04 ミシュラン ルシェルシェ エ テクニク ソシエテ アノニム Analysis and control method of tire uniformity
JP4808924B2 (en) * 2001-06-01 2011-11-02 ソシエテ ド テクノロジー ミシュラン Analysis and control method of tire uniformity
US7790075B2 (en) 2005-12-27 2010-09-07 Michelin Recherche Et Technique Multi harmonic tire uniformity correction

Also Published As

Publication number Publication date
CA904048A (en) 1972-07-04

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Legal Events

Date Code Title Description
PS Patent sealed