EP0071627A1 - Ecrous de roue - Google Patents

Ecrous de roue

Info

Publication number
EP0071627A1
EP0071627A1 EP19820900550 EP82900550A EP0071627A1 EP 0071627 A1 EP0071627 A1 EP 0071627A1 EP 19820900550 EP19820900550 EP 19820900550 EP 82900550 A EP82900550 A EP 82900550A EP 0071627 A1 EP0071627 A1 EP 0071627A1
Authority
EP
European Patent Office
Prior art keywords
nut
washer
wheel
shoulder
head
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.)
Withdrawn
Application number
EP19820900550
Other languages
German (de)
English (en)
Inventor
Neil Walter Adcock
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.)
TRENTSIDE INVESTMENTS Ltd
Original Assignee
TRENTSIDE INVESTMENTS 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
Application filed by TRENTSIDE INVESTMENTS Ltd filed Critical TRENTSIDE INVESTMENTS Ltd
Publication of EP0071627A1 publication Critical patent/EP0071627A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/14—Attaching disc body to hub ; Wheel adapters
    • B60B3/145—Attaching disc body to hub ; Wheel adapters using washers or distance bushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/14—Attaching disc body to hub ; Wheel adapters
    • B60B3/16—Attaching disc body to hub ; Wheel adapters by bolts or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts

Definitions

  • This invention relates to wheel nuts and more particularly concerns wheel nuts of the type having a captive washer.
  • Modern vehicles, particularly commercial heavy goods vehicles are designed to carry heavier loads at greater speeds and this must be taken into account when designing wheel nuts.
  • accurate location of the wheel is desirable in order to minimise any unbalance of the wheel and the arrangement must be such as to be capable of withstanding high axial loads.
  • Modern heavy goods vehicle wheels are located on a centre hub and axial movement is prevented by a series of radially distributed threaded studs to which the wheel nuts are fitted.
  • the use of captive washers has been found to be desirable as a high torque must be applied to the wheel nuts in this arrangement.
  • British Patent No. 1 389,976 describes a wheel nut having a captive washer.
  • An internally threaded nut head is provided with an axially extending neck with a pressure plate (washer) captively fitted around the neck.
  • a pressure plate washer
  • Opposing equi-inclined bearing surfaces are provided on the pressure plate and a collar which extends radially outwardly from the nut head.
  • a wheel nut having a captive washer
  • said wheel nut comprising an internally threaded nut head provided with a radially outwardly extending shoulder, the shoulder and the washer being provided with a co-operating formation which serves to retain the washer in position on the nut head.
  • the co-operating formation comprises an intumed lip which engages in a co-operating peripheral recess in the shoulder.
  • the washer and the nut head are each provided with a conical bearing interface which extends at an angle of 16° to 25° to the radial plane of the nut. Desirably, the angle is substantially 20°.
  • the bearing interface extends substantially from the outside diameter of the thread 5 to the outside diameter of the shoulder.
  • Figure 1 is a side elevation with part cut-away of a wheel nut according to the invention
  • Figure 2 is an end elevation of the wheel nut shown in Figure 1;
  • Figure 3 is a cross-section on an enlarged scale of part of the nut shown in Figures 1 and 2.
  • the nut 10 comprises a nut head 11 having an internally 5 threaded bore 12 and hexagon flats 13 on its outer surface. .
  • the nut head 11 has a radially outwardly extending shoulder 14 with an external peripheral recess 15..
  • the shoulder 14 is provided with a conical bearing interface 16 for engagement with a conical bearing interface 17 0 on the washer 18.
  • the washer is rendered captive on the nut head 11 by means of a continuous intumed lip 19 which engages in the recess 15.
  • the resultant thread length through the nut head 11 is a very high proportion of the overall length of the nut, thus ensuring high torque capacity.
  • the larger area gives correspondingly lower unit pressures as torque is applied, and gives a higher torque capacity before the interface seizes up.
  • lubrication may be applied to the interfaces to assist in the prevention of seizure.
  • the intumed lip 19 and recess 15 provide a labyrinth to prevent external elements entering to inhibit the lubricated surfaces.
  • Torque was applied to a nut on a threaded stud and a measured clamp load was plotted against torque applied to the nut. A straight-line graph was obtained. The nut was then removed from the stud and subjected to 24 hours of salt spray and a degreasing agent. Torque was then applied to the nut on a stud as before and it was found that the plot of clanp load against torque followed the same line as that obtained before the salt spray and degreasing steps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

Un ecrou de roue ayant une rondelle prisonniere comprend une tete d'ecrou filetee interieurement pourvue d'un epaulement s'etendant radialement vers l'exterieur, l'epaulement et la rondelle etant formes de facon a cooperer pour retenir la rondelle en position sur la tete d'ecrou. La forme de cooperation peut comprendre une levre tournee vers l'interieur qui s'engage dans un evidement peripherique de cooperation dans l'epaulement. Une interface conique portant sur l'ecrou et la rondelle fait un angle approprie d'environ 20 par rapport au plan radial de l'ecrou.
EP19820900550 1981-02-14 1982-02-12 Ecrous de roue Withdrawn EP0071627A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8104691 1981-02-14
GB8104691 1981-02-14

Publications (1)

Publication Number Publication Date
EP0071627A1 true EP0071627A1 (fr) 1983-02-16

Family

ID=10519721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820900550 Withdrawn EP0071627A1 (fr) 1981-02-14 1982-02-12 Ecrous de roue

Country Status (2)

Country Link
EP (1) EP0071627A1 (fr)
WO (1) WO1982002690A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325255C2 (de) * 1983-07-13 2000-01-13 Neumayer Erich Gmbh Co Kg Radmutter für Nutzfahrzeugräder, insbesondere aus Leichtmetall
CN101825133B (zh) * 2010-05-14 2012-01-04 泉州丰源机械有限公司 一种组合式轮胎螺母

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE19492E (en) * 1931-03-13 1935-03-05 Nut and cup washer assembly
US2169047A (en) * 1936-08-05 1939-08-08 Motor Wheel Corp Vehicle wheel
AT333135B (de) * 1975-04-25 1976-11-10 Steyr Daimler Puch Ag Mittenzentriertes rad fur kraftfahrzeuge
GB2051285B (en) * 1979-06-21 1983-08-17 Forest Fasteners Ltd Wheel nuts
US4362449A (en) * 1979-11-30 1982-12-07 Maclean-Fogg Company Fastener assemblies
FR2474119A1 (fr) * 1980-01-18 1981-07-24 Peugeot Dispositif de fixation, notamment pour roue de vehicule

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8202690A1 *

Also Published As

Publication number Publication date
WO1982002690A1 (fr) 1982-08-19

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19821014

AK Designated contracting states

Designated state(s): DE FR GB NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19840905

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ADCOCK, NEIL WALTER