WO1987007376A1 - Procede d'equilibrage des pneus de vehicules automobiles; roue de vehicule equilibree; ainsi qu'un pneu de vehicule a equilibrer - Google Patents

Procede d'equilibrage des pneus de vehicules automobiles; roue de vehicule equilibree; ainsi qu'un pneu de vehicule a equilibrer Download PDF

Info

Publication number
WO1987007376A1
WO1987007376A1 PCT/SE1987/000261 SE8700261W WO8707376A1 WO 1987007376 A1 WO1987007376 A1 WO 1987007376A1 SE 8700261 W SE8700261 W SE 8700261W WO 8707376 A1 WO8707376 A1 WO 8707376A1
Authority
WO
WIPO (PCT)
Prior art keywords
tyre
receptors
balancing
rubber
bodies
Prior art date
Application number
PCT/SE1987/000261
Other languages
English (en)
Inventor
Frank Dahlberg
Rune LINDSTRÖM
Original Assignee
Candaco Ab
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 Candaco Ab filed Critical Candaco Ab
Priority to BR8707707A priority Critical patent/BR8707707A/pt
Priority to KR1019880700076A priority patent/KR880701373A/ko
Publication of WO1987007376A1 publication Critical patent/WO1987007376A1/fr
Priority to NO880227A priority patent/NO160292C/no
Priority to DK028488A priority patent/DK28488A/da
Priority to FI885293A priority patent/FI885293A0/fi

Links

Classifications

    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
    • F16F15/324—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels the rotating body being a vehicle wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C19/00—Tyre parts or constructions not otherwise provided for
    • B60C19/003—Balancing means attached to the tyre
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M1/00—Testing static or dynamic balance of machines or structures
    • G01M1/30—Compensating imbalance
    • G01M1/32—Compensating imbalance by adding material to the body to be tested, e.g. by correcting-weights

Definitions

  • the present invention relates to a novel method for balan-i-- cingvehicle tyres, with or without a tyre rim, with the aid of bodies of balancing material, for instance a lead alloy, that has a high density in relation to the rubber material from which the tyre is made.
  • the invention also relates to a vehicle tyre balanced in accordance with the novel method; and to a vehicle tyre which is to be balanced by the novel method.
  • the tyres..of automotive vehicles have normally been balanced with the aid of balancing bodies or weights, preferably made of lead, that are clamped or bonded to the rim of the wheel to which the tyre is fitted (c.f. for exampl US Patent Specification Nos 2 049 703, 3 177 039, 3 495 877, 3 960 409 and 4 379 596) .
  • weights are readily dis ⁇ lodged when knocked or otherwise disturbed, for instance when washing vehicles whose wheels are balanced with this type of weight in automatic vehicle washing acilities, thereby requiring the wheel to be re-balanced.
  • the object of the present invention is to provide, for the purpose of eliminating to a great extent the drawbacks encountered with conventional balancing methods, a novel and improved balancing method of the kind n which there are used balancing bodies or weights of high density in relation to the tyre rubber.
  • the bodies of balancing material are fitted to the actual tyre rubber, when balancing in accordance with a method of the kind described in the introduction.
  • the method according to the invention it is possible to ensure with the aid of simple means that balancing bodies fitted to the tyre rubber will remain positively seated therein. Because the balancing bodies are positioned in the tyre radially outside the rim, there is obtained a 'greater balancing e fect per unit of weight than when balancing bodies are attached to the rim in a conventional manner.
  • a tyre is normally responsible for the major part of, or all of the imbalance in a vehicle wheel, it is possible when using rims of good quality to move a tyre that has been balanced in accordance with the invention from one wheel rim to another without needing to re-balance the wheel.
  • pocket-like receptors are formed in the tyre in conjunction with its manufacture or at some later stage, for example, when the tyre is balanced, and filled with the amount of balancing material required to balance the tyre.
  • balancing-body receptors can be formed, for instance, by shaping the tyre in a tyre mould that is constructed to this end, or may be formed in the tyre, subsequent to manufacture, thermally or by drilling, milling or some other appropriate technique.
  • the balancing material may be in a molten state when introduced into the receptors and allowed or caused to harden therein.
  • a metal alloy of relatively low melting point particularly a lead alloy
  • the balancing material may consist of a liquid or paste-like mixture of metal powder, particularly powdered lead, and a setting and binding agent, this mixture being introduced into and allowed to harden in receptors located in the tyre in a manner to balance said tyre, optionally in conjunction with the wheel rim.
  • receptors in the form of peripherally extending grooves or channels are formed in the tyre walls and filled with adapted lengths of balancing material strings or stips, therewith balancing the tyre, optionally together with its associated rim.
  • the actual amount or length of balancing material required and the positions at which the material is placed around the tyre walls can be calculated with the aid of conventional balancing machines.
  • rows of relatively densely located holes are formed peripherally around the tyre, and balancing material is introduced into these holes where the presence of such material is required for balancing purpose.
  • the receptors and the balancing bodies therein are, of course, positioned so as not to be exposed to wear by contact with the road surface.
  • the receptors may be formed advantageously in thickened portions or peripheral beads in the tyre' walls, although balancing bodies may also be placed in receptors located in the region of the tyre tread, provided that the balancing bodies are prevented from contacting the road surface.
  • the balancing-material receptors may to advantage have sealing means located at the entrance thereof, " to prevent ingress of dirt into said receptors.
  • the present invention also relates to a balanced vehicle tyre, either with or without a wheel rim, which includes bodies of balancing material having a high density in relation to the density of the tyre rubber.
  • the balanced tyre according to the invention being charac ⁇ terized in that the balancing material is located in the tyre rubber. It is possible, in this way, to readily ensure that the balancing bodies will be securely seated and have a good balancing effect per unit of weight, at the same time as the balancing bodies will accompany the wheel component responsible for the major part, or all of the imbalance in a vehicle wheel, consisting of tyre and rim, namely the tyre. This will normally allow the tyre to be moved rom one rim to another without needing to re-balance the wheel.
  • the invention also relates to vehicle tyres, with or without rim, as defined in the 'claims, which are intended to be balanced by means of the method according to the present invention.
  • These tyres present balancing-material re ⁇ ceptors in the form of peripherally extending channels or grooves, or rows of peripherally located holes.
  • An advantage is afforded when the receptors are formed in thickened portions of the tyre rubber extending around the tyre.
  • the receptors may have sealing means located at the entrance thereof, to prevent ingress of dirt into said receptors prior to balancing the tyre.
  • Figures 1 -6 illustrate, partly in section along a radial plane and partly in perspective, a portion of a first, a second, a third, a fourth, a fifth, and a sixth embodiment respectively of the balanced vehicle tyre according to the invention.
  • Figure 7 illustrates an alternative balancing body.
  • Figure 8-15 illustrate in section and in end view four alternative embodiments of the balancing-material receptors
  • the reference 10 designates generally a vehicle tyre having a ply structure 11 molded in the rubber thereof.
  • the tyre 10 is fitted to a rim 12, only partially shown, which includes a wheel-face part 13 and a wheel disc 14 which extends between the wheel-face part 13 and the wheel hub (not shown).
  • the tyre 10 includes tyre walls 15 and a tread 16, which presents patterning indents 17, and shoulders 18 between said walls and tread.
  • a plurality of balancing-body receptors 19 are formed in the two shoul ⁇ ders 18 of the tyre 10, where the tyre rubber is relatively r thick.
  • the illustrated receptors 19 have the form of holes which extend substantially laterally into the tyre rubber.
  • the receptors 19 may consist of straight-cylindrical holes or holes which widen towards the bottom thereof, and may be arranged in peripheral rows around the whole of the tyre in the manner indicated, although only the row of holes in the tyre wall 15 which is visible to the viewer can be seen from Figure 1.
  • the imbalance in the tyre 10, or in the wheel assembly 10, 12, and the weight required and the location at which said weight must be applied in order to balance the tyre or wheel can be determined by conventional measuring techniques.
  • Balancing is achieved with the aid of spherical lead bodies 20 having a weight, e.g., of 10 g, which, bodies are introduced into respective receptors 19 located around the determined application site in numbers which correspond to the requisite weight required to balance the tyre, or wheel, as determined through the aforesaid measuring process.
  • Balancing bodies 20 of different weights and/or of a shape other than spherical may, of course, be used. It is most suitable from many aspects, however, to use rounded balancing bodies 20 or bodies which present transversely directed fins 30 ( Figure 8) for engagement with the defining walls of respective receptors 19.
  • a suitable adhesive may be introduced into the receptors 19 either prior to or in conjunction with the introduction of said bodies 20 thereinto.
  • Figure 2 illustrates a tyre 10 which is provided with circumferentially extending thickened rubber portions 21 around the sides of the tyre located immediately outside the wheel—face part 13, this thickened rubber portion having provided therein receptors 19 in the form of rows of holes which are located relatively close together.
  • the tyre 10, or the wheel 10, 12, of the Figure 2 embodiment is balanced in the manner described with reference to Figure 1 , by means of balancing weights 20 which are introduced into those receptors 19 in the thickened rubber portions 21 found suitable when determining the imbalance of the tyre or wheel assembly.
  • Figure 3 illustrates a tyre 10, the walls 15 of which each have provided thereon a radially inner thickened portion 21 , similar to the portion 21 of the Figure 2 embodiment, and a radially outer thickened portion 22. Both portions 21, 22 extend around the tyre 10 and present receptors 19 in the form of a series of holes.
  • the weights used to balance the tyre 10, or the wheel assembly 10, 12, have the form of round balancing bodies 20 which are introduced into receptors 19, these receptors being selected so that a balance is achieved. It will be understood that the radially inner portions 21 of the Figure 3 embodiment could be omitted.
  • Figure 4 illustrates a tyre 10 in which receptors 19 having the form of cylindrical holes have been formed in the tread 16 of the tyre, the number of balancing bodies 20 required to balance the tyre 10 or the wheel assembly 10, 12 being introduced into the receptors. It shall be ensured in this regard' that the bodies 20 will not come into wearing contact with the road surface during the life of the tyre, for instance by thickening the tyre rubber in circumferential zones 23.
  • FIG. 5 illustrates a tyre 10 having a circumferentially extending thickened portion 24 similar to the portion 21 of the Figure 2 embodiment on each tyre wall 15.
  • Each portion 24 is provided with a receptor 25 in the form of a peripherally extending groove or channel which widens towards the bottom thereof.
  • the balan ⁇ cing bodies 26 have the form of strips of lead or some other high density metal alloy, which are placed in the grooves or channels 25. It will be understood that the strip 26, which has a constant cross-section, can be taken from a store and cut into the lengths required to achieve a balance in the tyre or wheel assembly.
  • FIG 6 illustrates a tyre 10 having a circumferentially extending thickened portion 27, similar to the portion 21 in Figure 2, provided on each tyre wall 15.
  • Each said portion 27 has provided therein a receptor 28 in the form of a substantially laterally directed slot or groove into which balancing bodies 29 in the form of wires, e.g. lead wires, are pressed, the wires being cut to lengths corresponding to the requisite balancing weight.
  • Figure 8 and 9 illustrate in sectional view and elevational view, respectively, a portion of a tyre wall 15 having a modified balancing-material receptor 31.
  • the receptor 31 is provided at the entrance thereof with sealing means 32 which prevent ingress of dirt into the receptor.
  • These sealing means comprise four tyre rubber portions which when forming the receptor 31 have been left in situ in the tyre.
  • the sealing means 32 which define a narrow cruciform entrance opening 33, fill substantially completely the entrance to the receptor 31.
  • Figures 10 and 11 illustrate in sectional view and elevational view, respectively, a portion of a tyre wall 15 having a balancing-material receptor 34.
  • the entrance of this receptor is substantially completely filled by a sealing means 35 which, is integral with the tyre and defines a arched entrance opening 36 which is to narrow to allow ingress of dirt into the receptor 34.
  • Figures 12 and 13 illustrate in sectional view and elevational view, respectively, a portion of a tyre wall 15 having a " balancing-material receptor 37 whose entrance is sealed by a sealing flap 38 which is integral with the tyre and resiliently abuts the outside of the tyre wall.
  • the flap 38 has been formed by leaving in situ when forming the receptor 37 a semi-circular tyre rubber portion of the shape indicated in phantom lines at 39, and by pulling out the flap 38 to the position shown in ull lines in Figure 12 and 13.
  • Figures 14 and 15 illustrate in sectional view and elevational view, respectively, a portion of a tyre wall 15 having a balancing-material receptor 40, whose entrance is sealed by a sealing plug 41 having a flange 42, which resiliently abuts the outside of the tyre wall.
  • the plug 41 which is integral with the tyre, has been formed by leaving in situ when forming the receptor 40 a substantially cylindrical tyre rubber portion within the receptor 40 as shown in phantom lines at 43-, and by pulling out the plug 41 to the sealing - position shown in full lines in Figures 14 and 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Testing Of Balance (AREA)
  • Tires In General (AREA)

Abstract

Pour équilibrer un pneu (10) de véhicule, avec ou sans jante (12), des éléments d'équilibrage (20) à haute densité sont incorporés dans le caoutchouc du pneu. Le pneu (10) peut posséder sur sa périphérie des parties épaissies (21, 22) de caoutchouc dans lesquelles sont prévus des logements (19) destinés à recevoir les éléments d'équilibrage (20).
PCT/SE1987/000261 1986-05-26 1987-05-26 Procede d'equilibrage des pneus de vehicules automobiles; roue de vehicule equilibree; ainsi qu'un pneu de vehicule a equilibrer WO1987007376A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BR8707707A BR8707707A (pt) 1986-05-26 1987-05-26 Processo para balancear um pneu de veiculo e o respectivo pneu de veiculo
KR1019880700076A KR880701373A (ko) 1986-05-26 1987-05-26 차량타이어의 균형맞추는 방법 ; 균형맞춘 차량 타이어 ; 균형 맞출 차량 타이어
NO880227A NO160292C (no) 1986-05-26 1988-01-20 Fremgangsmaate for aa balansere dekkene paa selvbevegelige kjoeretoey, et balansert kjoeretoeydekk og et kjoeretoeydekk som skal balanseres.
DK028488A DK28488A (da) 1986-05-26 1988-01-22 Fremgangmsaade til afbalancering af daek til automobilkoeretoejer, et afbalanceret koeretoejsdaek og et koeretoejsdaek som kan afbalanceres
FI885293A FI885293A0 (fi) 1986-05-26 1988-11-16 Foerfarande foer balansering av fordonsdaeck, ett balanserat fordonsdaeck, och ett fordonsdaeck som skall balanseras.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8602391A SE453435B (sv) 1986-05-26 1986-05-26 Forfarande for balansering av fordonsdeck, balanserat fordonsdeck samt for sadan balansering avsett fordonsdeck
SE8602391-8 1986-05-26

Publications (1)

Publication Number Publication Date
WO1987007376A1 true WO1987007376A1 (fr) 1987-12-03

Family

ID=20364646

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1987/000261 WO1987007376A1 (fr) 1986-05-26 1987-05-26 Procede d'equilibrage des pneus de vehicules automobiles; roue de vehicule equilibree; ainsi qu'un pneu de vehicule a equilibrer

Country Status (10)

Country Link
EP (1) EP0308418A1 (fr)
JP (1) JPH01500455A (fr)
KR (1) KR880701373A (fr)
AU (1) AU593125B2 (fr)
BR (1) BR8707707A (fr)
DK (1) DK28488A (fr)
ES (1) ES2003807A6 (fr)
FI (1) FI885293A0 (fr)
SE (1) SE453435B (fr)
WO (1) WO1987007376A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2769349A1 (fr) * 1997-10-03 1999-04-09 Cagny Raymond De Perfectionnement aux systemes d'equilibrage de roues
FR2792048A1 (fr) 1999-04-08 2000-10-13 Fonderie De Gentilly Dispositif d'equilibrage pour roue et roue equilibree par collage d'un tel dispositif d'equilibrage
EP1803588A1 (fr) * 2005-12-28 2007-07-04 The Goodyear Tire & Rubber Company Pneu avec un insert pour corriger le balourd dynamique

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2049703A (en) * 1933-12-27 1936-08-04 James W Hume Wheel balancer
US3177039A (en) * 1963-12-06 1965-04-06 Three G Corp Combination of pneumatic tire, rim, wheel and balancing weights
US3495877A (en) * 1967-02-07 1970-02-17 Bergsoe & San Ab P Wheel balance weights
GB1407371A (en) * 1972-06-27 1975-09-24 Goodyear Tire & Rubber Method of and apparatus for reducing irregularities in action of a tyre
US3960409A (en) * 1974-11-25 1976-06-01 Perfect Equipment Corporation Wheel balancing weight
US4379596A (en) * 1979-09-14 1983-04-12 Speed Clip Manufacturing Corp. Superpositioned vehicle wheel balance weights and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2049703A (en) * 1933-12-27 1936-08-04 James W Hume Wheel balancer
US3177039A (en) * 1963-12-06 1965-04-06 Three G Corp Combination of pneumatic tire, rim, wheel and balancing weights
US3495877A (en) * 1967-02-07 1970-02-17 Bergsoe & San Ab P Wheel balance weights
GB1407371A (en) * 1972-06-27 1975-09-24 Goodyear Tire & Rubber Method of and apparatus for reducing irregularities in action of a tyre
US3960409A (en) * 1974-11-25 1976-06-01 Perfect Equipment Corporation Wheel balancing weight
US4379596A (en) * 1979-09-14 1983-04-12 Speed Clip Manufacturing Corp. Superpositioned vehicle wheel balance weights and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2769349A1 (fr) * 1997-10-03 1999-04-09 Cagny Raymond De Perfectionnement aux systemes d'equilibrage de roues
WO1999018363A1 (fr) * 1997-10-03 1999-04-15 Fonderie De Gentilly Dispositif d'equilibrage pour roue et roue equipee d'un tel dispositif d'equilibrage
FR2792048A1 (fr) 1999-04-08 2000-10-13 Fonderie De Gentilly Dispositif d'equilibrage pour roue et roue equilibree par collage d'un tel dispositif d'equilibrage
EP1803588A1 (fr) * 2005-12-28 2007-07-04 The Goodyear Tire & Rubber Company Pneu avec un insert pour corriger le balourd dynamique

Also Published As

Publication number Publication date
JPH01500455A (ja) 1989-02-16
EP0308418A1 (fr) 1989-03-29
SE453435B (sv) 1988-02-01
KR880701373A (ko) 1988-07-26
DK28488D0 (da) 1988-01-22
AU7488487A (en) 1987-12-22
SE8602391D0 (sv) 1986-05-26
BR8707707A (pt) 1989-08-15
ES2003807A6 (es) 1988-11-16
AU593125B2 (en) 1990-02-01
FI885293A (fi) 1988-11-16
FI885293A0 (fi) 1988-11-16
DK28488A (da) 1988-01-22
SE8602391L (sv) 1987-11-27

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