WO1981000831A1 - Bande de traction pour vehicule chausse de pneus - Google Patents

Bande de traction pour vehicule chausse de pneus Download PDF

Info

Publication number
WO1981000831A1
WO1981000831A1 PCT/GB1980/000143 GB8000143W WO8100831A1 WO 1981000831 A1 WO1981000831 A1 WO 1981000831A1 GB 8000143 W GB8000143 W GB 8000143W WO 8100831 A1 WO8100831 A1 WO 8100831A1
Authority
WO
WIPO (PCT)
Prior art keywords
tyre
tread
openings
region
wheel
Prior art date
Application number
PCT/GB1980/000143
Other languages
English (en)
Inventor
Wellings J Horton
Original Assignee
Wellings J Horton
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 Wellings J Horton filed Critical Wellings J Horton
Priority to DE19803049910 priority Critical patent/DE3049910A1/de
Publication of WO1981000831A1 publication Critical patent/WO1981000831A1/fr

Links

Classifications

    • 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
    • B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
    • B60C27/06—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables
    • B60C27/16—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables formed of close material, e.g. leather or synthetic mats

Definitions

  • This invention relates to road engaging devices for the uheels of vehicles such as cars, lorries, and civil engineering vehicles.
  • the tyres conventionally fitted to vehicles for general use are provided uith treads intended to provide adequate road holding capability over a uide variety of possible vehicle operational conditions including amongst other things, the nature of the road or other surface over uhich the vehicle travels; the type of vehicle; the loading of the vehicle; tyre pressures; the manner in uhich it is driven; weather conditions; etc. Since each one of the above mentioned variables can vary uidely it has been found that the conventionally used tyres may not be able to provide under certain, not necessarily extreme, conditions the requisite degree of adhesion with the road or the like, uhereby the driver may not be able to control adequately the vehicle or the vehicle may not respond sufficiently to steering and drive requirements.
  • a traction device for shrouding the tread regions of a vehicle tyre, the device including for at least one of the side walls of the tyre a ring member which is adapted partially to shroud the adjacent side wall of the tyre and which is co-operable with the wheel upon which the tyre is fitted, the device also including an endless track portion having a plurality or recesses or openings or a combination of recesses or openings defining radially extending walls, the reeesses or openings being spaced around the track portion, said track portion being adapted for attachment to the tyre in such manner that when the tyre is inflated the track portion shrouds the tread region of the tyre.
  • a method of providing the tyre of a vehicle wheel with a traction tread comprising the steps of shrouding the tread region of the tyre with a flexible cover uhich circumscribes at least the tread region and which is provided with openings or recesses in the part thereof that co-operates with the tyre tread region, and securing the flexible cover in place by securing arrangements which co-operate with both sides of the structure of the wheel.
  • the endless track forming portion / flexible cover is formed from a conventional tyre whose tread region has been part removed to form the openings or recesses, and whose side walls are adapted for co-operation with means for retaining the track forming portion/flexible cover in its operational position.
  • the wall defining openings or recesses are so located in the tyre being modified that at least a part ofsome of the openings or recesses extend to the shoulder region betueen the tyre side walls and the tread region of the tyre.
  • each of said ring members has a plurality of apertures circumferentially spaced around the associated wall of the tyre from which the track farming portion/flexible cover is formed, which apertures are positioned to be engageable with location means provided on the associated ring member.
  • Figure 1 is a side elevation of the traction device/flexible cover of the invention mounted on the tyre of a vehicle wheel;
  • Figure 2 is a sectional view to an enlarged scale taken on the line II-II of Figure 1, the Figure illustrating two forms of a detail of the device;
  • Figure 3 is a perspective view of a part of the device/flexible cover of Figures 1 and 2, a part of a tyre also being shown:
  • Figure 4 is a very schematic representation of an arrangement for cutting openings into a conventional tyre for the purposes of producing a device/flexible cover of the invention.
  • a vehicle wheel unit 1 has a conventional tyre 2 fitted thereto.
  • the tyre 2 has a tread section or region 3, side walls 4, and rim beads 5 which engage with the wheel flange or rim structure 6 of the wheel (only a part of the wheel is shown in Figure 2)
  • the tyre 2 is partially shrouded or enclosed by a traction device 7, the latter being capable of flexure when subjected to the movements of the vehicle so that the device can be regarded as a flexible cover.
  • the device 7 comprises a road surface engaging portion 8 which extends across the full width of the tread region of the tyre 2 and around the complete circumference of the tyre 2.
  • the portion 8 conforms to the general profile of the tyre tread region 3.
  • the portion 8 is provided with a plurality of openings 9 which in the embodiment shown are arranged in two rows 10 and 11.
  • the openings 9 in the rows 10 and 11 can be in side-byside relationship as shown or arranged in staggered relationship.
  • the openings 9 can have a variety of shapes. For example, they can be as shown in the drawings or they can be oval, elliptical, circular or other shape that may be found suitable. In each case it is important that the side ualls 12 of the openings 9 should be inclined outuardly so that the outer perimeter of each opening is larger than that of the inner surface of the opening.
  • openings there can be more than two rous of openings of differing sizes arranged in regular or irregular arrangement.
  • arrangement of the openings, the number of rous etc. would be related to the dimensions of the wheel tyre and in particular the axial width of the tyres in relation to the diameter, the diameters of the tyres and the nature of the tread formation.
  • the device 7 has relatively narrow sidewall forming portions 13 which are each provided with lugs or flaps 14.
  • the number of lugs or flaps can vary, the number being chosen as thought expedient. For example, four, six, eigth or ten.
  • the portions 13 are shown as having six lugs or flaps 14.
  • the flaps 14 are each apertured for engagement with a hut and bolt assembly 16 connected with an annular ring member 17 which is adapted at its inner peripheral region 18 for firm engagement with the wheel structure 6 particularly in the region of the tyre well.
  • the mode of engagement can take various forms and in any particular case the precise shaping of the inner region 18 will be related to the form of the wheel structure 6.
  • the left hand side ⁇ f the wheel flange rim has been shown with a hook formation 6A into which a suitably turned-in part 18A of the region 18 engages.
  • the right hand side of the Figure shows illustrates an alternative form. It will be understood that in an actual wheel structure the two sides of the wheel structure will be of the same form.
  • Each ring member 17 can be formed of any convenient material metal or plastics.
  • a suitable plastics material can be polypropolene.
  • an alloy of steel and Zinc may be used.
  • Zintex is known under the Trade Name Zintex.
  • the ring member can, in the case of a metal can be pressed or formed by a spinning operation.
  • the ring member is provided with a plurality of bores 20 one for each flap 14 into which are fitted countersunk bolts 21 the latter being held firmly in place by nuts 22.
  • the bolts 21 and nuts 22 form the assemblies 16.
  • the bolts project outuardly from the ring member sufficiently not only to be engageable by the flap but also to be able to receive a retaining nut 23 and a washer or plate 25.
  • the washer assists in providing lateral support to the flap 14.
  • the flap region in the vicinity of the ring member is effectively reinforced by reason of the thickening of the wall 13 at the regions closer to the originally provided bead, which is not shown and which is removed during formation of the flaps 14.
  • the device according to the invention can be fitted as follous :-
  • the wheel is removed from the vehicle ( or a spare wheel utilised) since this facilitates the fitting process.
  • the tyre is deflated sufficiently to allow the side wall 13 and the flaps 14 on one side of the device 7 to be aligned with and slipped over the tread region of the tyre 2.
  • the device 7 is then positionally adjusted until the tread portion 8 is correctly symmetrically positioned on the tyre 2.
  • the tyre 2 is then initially reflated to a pressure level which is found to be sufficient to hold the device firmly in place.
  • the ring member 17 or members 17 are then attached to the vehicle wheel so that the assemblies 16 can engage the bores in the flaps 14, with the bolts projecting outuardly to receive the associated washers and nuts 23.
  • the tyre 2 is then finally reflated to its correct running pressure thereby exerting additional pressure on the securing arrangements which aids in the retention of the device in its operational position. It will be found, in practice, that when the device 7 is under tension from the securing arrangements and the effect of air pressure within the tyre 2, the device 7 tends to push the central part of the tyre tread region 3 inuardly so that a slight concavity is produced in the tyre tread region 3. This has been found to aid in maintaining the device in position.
  • the device of the invention has found to provide a far greater freedom of usage in situations where chains would be likely to cause damage. For example, where stretches of road are covered with snow, slush or ice are interspersed with stretches of road relatively free of such materials.
  • a modified form of the device of the invention
  • an additional gripping facility can be provided by provided by inserting stud attachment elements in the tread portion 8, whereby studs can be releasably attached to the device 7 to take into account more severe conditions. When such studs are not required they can be readily removed.
  • the openings 9 can be used in conjunction with various relative spacings of the flaps.
  • the number of lugs or flaps can be other than the six shown i.e., 4,5,7,8,9,10 etc. It has been found that eight lugs or flaps is a convenient number for many of the wheels commonly used on motor vehicles.
  • the devices of the present invention are constructed from tyres which are part worn and are not acceptable for further normal use as an inflated tyre. Alternatively, tyres which during their manufacture have not been accepted because of quality factors could well be used to form a device of the invention.
  • the devices of the invention can be formed from various types of tyre in so far as the internal construction thereof is concerned.
  • tyres which do not involve metal cords, tyres with metal side wires, car tyres, lorry tyres, civil engineering vehicle tyres such as those of earth moving machinary.
  • the device of the invention can be especially moulded from plastics or rubber like materials to thereby provide structures in which the desired openings or recesses are formed during the moulding process.
  • such moulded devices can be formed with formations similar to conventional tyre treads so as to enhance the requisite grip afforded by the moulded devices.
  • the device of the invention could be of such form as to be able to bridge a pair of sideby-side wheels such as are frequently provided upon commercial vehicles.
  • the device would have a tread portion of such width as to be able to bridge the distance between the outer wall of the tyre on the outermost wheel and the inner wall of the tyre on the inner wheel of a pair.
  • the double tyre device can comprise two sets of lugs or flaps 14 each being genenally similar to those of the single tyre arrangement or, if thought desirable can be provided with a third set of centrally positioned lugs or flaps which co-operate with a ring member located between the adjacent pair of wheels and connected with one of the wheels.
  • an integral rib can be provided on the inside of the moulded device the rib running circumferentially around the device. This rib can be connected with the lugs or flaps. If it is considered that the extra set of lugs or flaps 14 is not necessary they can be dispensed with thereby leaving the rib as a convenient means for aiding in the positioning of the double width device in its desired position.
  • the ring members could be such as to be a permanent fixture on the wheels- particularly in the case of the inside face of the wheel.
  • the associated ring member could additionally form part of the visual design enhancements for the vehicle.
  • FIG. 4 is a very schematic representation in part cross section of apparatus for removing areas of a tyre to provide the openings in a tyre and thereby to provide the device 7 of the invention.
  • the apparatus essentially comprises a punch assembly 26 mounted on the ram 27 of a pneumatically or hydraulically operated ram unit 28 which is carried by a support stand 29 for positional adjustment relative to a support base plate 30.
  • the punch assembly comprises a ring blade 31 having a cutting edge 32 shaped to provide the required shape of the aperture to be provided in the tyre to be converted into the tread portion of the device of the invention.
  • the blade has a generally rectangular outlin with rounded corners and with opposed sides of the blade parallel to each other. The blade is held in place by a blade clamp ring 33 which clamps the blade to a chuck 34 mounted on the end of the ram 28 of the ram unit 29.
  • the punch assembly includes an ejector pin 35 which is resiliently loaded by a spring 36 and which is axially displac ⁇ able within a recess 37 provided in the chuck.
  • the ram is operable by means of a suitable control arrangement schematically shoun at 37A. It will be understood that the ram unit is connected with the appropriate sourceof pressurised fluid.
  • the blade 31 co-operates with a mandrel or bolster 38 which serves to support the tyre being modified, and has a blade receiving recess 39 into which the blade 31 may enter when the ram displaces the blade downwardly twowards the base plate 30 or mandrel 38.
  • a guard arrangement 40 is provided for protecting the operator from the blade. This guard is lowerable to contact the tyre by means of a handle arrangement which is schematically shown at 41.
  • the tyre 1 is placed upon the mandrel 38 and is so positioned that the region of the tyre which is to be punched out is located immediately beneath the blade 31.
  • the guard 40 is lowered to an extent that it pushes the tyre firmly against the mandrel that is flat against the mandrel.
  • the guard can be arranged to complete an interlocking arrangement included in the control of the ram unit which enables the control 37A to be operated to allow the blade to be driven downwards towards the mandrel and through the tyre to enter into the recess 39 in the mandrel.
  • the ram is caused to retract. This part of the operation can be automatic or operator controlled. The retraction of the ram allows the ejector pin to eject the piece of tyre removed from the tyre from the blade 31.
  • the arrangement can be such that the piece removed from the tyre is ejected through the mandrel.
  • the guard After the ejection stroke of the ram the guard will be raised to release the tyre. It will be found that as soon as the pressure on the tyre is removed the tyre will resume its conventional shape, and that the walls of the opening formed by the removal of the piece of tyre material will be tapered inwards from the outer surface of the tyre to the inner surface of the tyre. In other words the parallel sided punch blade is able to produce the desired tapered wall formation to the openings.
  • the lugs or flaps 14 are produced by removing material from the walls of the tyre being modified. Conveniently the flaps are formed before the punching out of the openings 9 so as to facilite the handling of the device during the hole punching operation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

Un dispositif de revetement de la bande de roulement d'un pneu de maniere a ameliorer l'adherence de celui-ci sur la surface d'une route dans des conditions d'enneigement, de glace fondante etc., consiste en un element sans fin de formation de roulement (7) qui circonscrit la region de la semelle (3) d'un pneu (1) sur lequel il est monte. Une serie d'ouvertures (9) sont amenagees dans l'element, ces ouvertures etant espacees autour de la circonference de l'element. En cours d'utilisation on obtient une adherence supplementaire sur la neige, la glace, de la boue pouvant entrer dans les ouvertures pour donner une plus grande adherence. La flexion du pneu et de l'element (7) permet d'ejecter la neige et la glace hors des ouvertures de telle sorte que, au fur et a mesure que le vehicule roule, des ouvertures sont presentees de maniere continue. De preference, l'element est fait a partir d'un pneu conventionnel en percant des trous dans les regions de sa semelle.
PCT/GB1980/000143 1979-09-18 1980-09-17 Bande de traction pour vehicule chausse de pneus WO1981000831A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803049910 DE3049910A1 (en) 1979-09-18 1980-09-17 Traction belt for tyred vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7932223 1979-09-18
GB7932223 1979-09-18

Publications (1)

Publication Number Publication Date
WO1981000831A1 true WO1981000831A1 (fr) 1981-04-02

Family

ID=10507886

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1980/000143 WO1981000831A1 (fr) 1979-09-18 1980-09-17 Bande de traction pour vehicule chausse de pneus

Country Status (3)

Country Link
EP (1) EP0035512A1 (fr)
DE (1) DE3049910A1 (fr)
WO (1) WO1981000831A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121604A2 (fr) * 1982-12-21 1984-10-17 George Polizos Gaine de sécurité antidérapante
GB2152449A (en) * 1984-01-14 1985-08-07 Terence Christopher Thompson Snow treads
EP0518166A2 (fr) * 1991-06-14 1992-12-16 Deere & Company Partie de chassis à verrouillage avec un sous-ensemble porteur
US5624509A (en) * 1991-12-23 1997-04-29 Stanley; Corby H. Wheel traction device
CN103029535A (zh) * 2011-10-07 2013-04-10 蔡竟煌 轮胎保护装置
US9663918B2 (en) 2014-05-30 2017-05-30 Cnh Industrial America Llc Drive wheel for a track assembly of a work vehicle

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1414050A (en) * 1921-02-11 1922-04-25 Edmund H Simonton Pneumatic-tire covering
FR661940A (fr) * 1927-10-14 1929-07-31 Dunlop Rubber Co Perfectionnements aux bandes de roulement auxiliaires et agencements similaires telsqu'antidérapants, bandages supplémentaires, revêtements ou autres dispositifs de traction
CH163749A (de) * 1933-03-11 1933-08-31 Zumstein Emil Gleitschutzvorrichtung für die Radreifen von Kraftfahrzeugen.
CH171213A (de) * 1934-02-10 1934-08-15 W Suter Gleitschutzeinrichtung an Pneumatikrädern von Kraftfahrzeugen.
CH185325A (de) * 1935-12-20 1936-07-15 Kessler Paul Gleitschutzreifen.
FR865668A (fr) * 1940-05-17 1941-05-30 Bande de roulement ou couvre-bandage antidérapant pour roues de véhicule
US2570689A (en) * 1948-05-08 1951-10-09 Chester R Kennedy Antiskid device for pneumatic tires
US2608232A (en) * 1948-02-16 1952-08-26 Chester R Kennedy Antiskid device for pneumatic tires
US2856979A (en) * 1956-09-19 1958-10-21 Gilbert T Branch Pneumatic tire traction aid
US3675701A (en) * 1970-06-30 1972-07-11 George E Garrison Auxiliary tire track
FR2297148A1 (fr) * 1975-01-08 1976-08-06 Logeais Pierre Modele d'equipement neige (ou boue ou sol mou) pour vehicule automobile

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1414050A (en) * 1921-02-11 1922-04-25 Edmund H Simonton Pneumatic-tire covering
FR661940A (fr) * 1927-10-14 1929-07-31 Dunlop Rubber Co Perfectionnements aux bandes de roulement auxiliaires et agencements similaires telsqu'antidérapants, bandages supplémentaires, revêtements ou autres dispositifs de traction
CH163749A (de) * 1933-03-11 1933-08-31 Zumstein Emil Gleitschutzvorrichtung für die Radreifen von Kraftfahrzeugen.
CH171213A (de) * 1934-02-10 1934-08-15 W Suter Gleitschutzeinrichtung an Pneumatikrädern von Kraftfahrzeugen.
CH185325A (de) * 1935-12-20 1936-07-15 Kessler Paul Gleitschutzreifen.
FR865668A (fr) * 1940-05-17 1941-05-30 Bande de roulement ou couvre-bandage antidérapant pour roues de véhicule
US2608232A (en) * 1948-02-16 1952-08-26 Chester R Kennedy Antiskid device for pneumatic tires
US2570689A (en) * 1948-05-08 1951-10-09 Chester R Kennedy Antiskid device for pneumatic tires
US2856979A (en) * 1956-09-19 1958-10-21 Gilbert T Branch Pneumatic tire traction aid
US3675701A (en) * 1970-06-30 1972-07-11 George E Garrison Auxiliary tire track
FR2297148A1 (fr) * 1975-01-08 1976-08-06 Logeais Pierre Modele d'equipement neige (ou boue ou sol mou) pour vehicule automobile

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121604A2 (fr) * 1982-12-21 1984-10-17 George Polizos Gaine de sécurité antidérapante
EP0121604A3 (fr) * 1982-12-21 1986-03-12 George Polizos Gaine de sécurité antidérapante
GB2152449A (en) * 1984-01-14 1985-08-07 Terence Christopher Thompson Snow treads
EP0518166A2 (fr) * 1991-06-14 1992-12-16 Deere & Company Partie de chassis à verrouillage avec un sous-ensemble porteur
EP0518166A3 (en) * 1991-06-14 1993-06-02 Deere & Company Frame element to which a component frame element is attachable
US5624509A (en) * 1991-12-23 1997-04-29 Stanley; Corby H. Wheel traction device
CN103029535A (zh) * 2011-10-07 2013-04-10 蔡竟煌 轮胎保护装置
US9663918B2 (en) 2014-05-30 2017-05-30 Cnh Industrial America Llc Drive wheel for a track assembly of a work vehicle

Also Published As

Publication number Publication date
EP0035512A1 (fr) 1981-09-16
DE3049910A1 (en) 1982-03-04

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