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WO2020150756A1 - Jante de roue - Google Patents

Jante de roue Download PDF

Info

Publication number
WO2020150756A1
WO2020150756A1 PCT/ZA2020/050003 ZA2020050003W WO2020150756A1 WO 2020150756 A1 WO2020150756 A1 WO 2020150756A1 ZA 2020050003 W ZA2020050003 W ZA 2020050003W WO 2020150756 A1 WO2020150756 A1 WO 2020150756A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel rim
tyre
rim
bead
polyurethane
Prior art date
Application number
PCT/ZA2020/050003
Other languages
English (en)
Inventor
Gary Kitson TURNER
Original Assignee
Black Stone Tek (Pty) 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 Black Stone Tek (Pty) Ltd filed Critical Black Stone Tek (Pty) Ltd
Publication of WO2020150756A1 publication Critical patent/WO2020150756A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B5/00—Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material
    • B60B5/02—Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material made of synthetic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/12—Appurtenances, e.g. lining bands
    • 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
    • B60C5/00—Inflatable pneumatic tyres or inner tubes
    • B60C5/12—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim
    • B60C5/16—Sealing means between beads and rims, e.g. bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2310/00—Manufacturing methods
    • B60B2310/30—Manufacturing methods joining
    • B60B2310/318—Manufacturing methods joining by adhesive bonding, e.g. glueing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2310/00—Manufacturing methods
    • B60B2310/30—Manufacturing methods joining
    • B60B2310/321—Manufacturing methods joining by overmolding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2310/00—Manufacturing methods
    • B60B2310/60—Surface treatment; After treatment
    • B60B2310/614—Painting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2310/00—Manufacturing methods
    • B60B2310/60—Surface treatment; After treatment
    • B60B2310/616—Coating with thin films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2310/00—Manufacturing methods
    • B60B2310/60—Surface treatment; After treatment
    • B60B2310/618—Coating with foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/50—Improvement of
    • B60B2900/511—Sealing
    • B60B2900/5116—Sealing against air-loss
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/50—Improvement of
    • B60B2900/523—Tyre fixation on rim, e.g. fixing axially or circumferentially thereon

Definitions

  • This invention relates to a wheel rim to which, in use, a vehicle tyre is attached.
  • a wheel rim can be made from different types of materials e.g. a metallic rim can be fabricated from pressed steel or a cast alloy.
  • a composite material e.g. a carbon or glass fibre reinforced resin can also be used.
  • the mass of a composite material wheel rim is normally lower than the mass of a metallic rim.
  • the aesthetic appeal of a rim can be enhanced through the use of a composite material in its manufacture.
  • Critical to the efficacy of any tyre rim is that the bead surfaces of the rim which in use are brought into sealing contact with corresponding surfaces of a tyre, which is engaged with the rim, should be of precise tolerances.
  • a composite fibre blank is formed in a moulding process. The blank is thereafter machined as necessary to comply with industry standard profile specifications e.g. ISO (International Organization for
  • An object of the present invention is to provide a wheel rim which is made from a composite material and which substantially addresses the aforementioned problems.
  • the invention provides a wheel rim which Includes a body which is made from a composite material and which includes a central axial region, a structure which radiates from the central axial region and a peripheral tyre-engaging section which is supported by the structure, wherein the peripheral tyre engaging section in cross-section, has a channel shape that indudes a base and first and second opposed side walls, and each side wall includes a respective bead formation and, applied at least to each bead formation, a material which forms a bead surface which in use is brought into sealing contact with a corresponding surface of a tyre which is engaged with the peripheral tyre-engaging section.
  • the composite material from which the body is made may be formed from resin which is reinforced with fibres e.g. carbon fibre, glass fibres or the like.
  • the invention is not limited in that respect.
  • the material which is applied to each bead formation may be of any appropriate kind and may be a plastics material.
  • Preferably us is made of a polyurethane material of an appropriate shore hardness and colour.
  • the plastics material is preferably applied in a continuous sealing layer to what, in use, is an outer surface of the peripheral tyre-engaging section i.e. including opposed surfaces of the first and second side walls, an intervening surface of the base, and a surface of each bead formation.
  • the plastics material may be applied as aforementioned, to the body of the wheel rim using any suitable technique e.g., using a dipping, spraying, painting or injection moulded process. The invention is not limited in that respect.
  • the plastics material also acts as a sealant which seals passages or holes (if any) in the composite material.
  • the areas of the wheel rim which are to form the bead surfaces are initially bigger than required and are machined to a correct and desired specification.
  • the body of the wheel rim in those areas in which the bead formations are defined, are made smaller than what is In the end required and, through the application of the plastics material, as described, those areas of the wheel rim which are to form the bead formations are increased In size to achieve the desired profiles.
  • a hub of any appropriate kind may be attached to the central axial region of the body.
  • the invention is not limited in this respect.
  • the structure which radiates from the central axial region may comprise a number of spokes of any suitable shape or form, or comprise sheel-like material of any suitable shape or form.
  • the structure may be embellished as required - the invention is not limited in this respect.
  • Figure 1 schematically illustrates in cross-section a part of a wheel rim according to the invention and a tyre which is engaged therewith; and Figure 2 shows in enlarged detail a portion of a bead formation of the wheel rim and an adjacent section of the tyre.
  • FIG. 1 of the accompanying drawings illustrates in diametrical cross-section a wheel rim 10, according to the invention, with which is engaged a tyre 14.
  • the wheel rim 10 includes a body 18 which has a central axial region 20, a structure 24 which radiates from the region 20, and a peripheral tyre-engaging section 28 which is at a radial extremity of the structure 24.
  • the body 18 is made from a composite material such as carbon-fibre or glass fibre- reinforced resin. Layers and plies of the fibres, saturated with resin, are formed to a desired shape in a suitable mould. Once the resin has cured the resulting blank is removed from the mould.
  • a composite material such as carbon-fibre or glass fibre- reinforced resin.
  • the axial region 20 is designed to be engaged with a hub 34 which is supported on an axle 36 of a vehicle.
  • the vehicle may be a truck, a passenger or sports vehicle, a motor cycle, pedal bicycle or the like.
  • the use of the wheel rim of the invention is not limited in this respect.
  • the structure 24 radiates from the axial region 20 and is integral therewith and with the peripheral tyre-engaging section 28.
  • This section in cross section, has a channel shape and includes a base 40, and first and second opposed side walls 42 and 44 respectively which extend radially outwardly from the base 40.
  • the side wall 42 at a radial extremity has a bead formation 48.
  • the side wall 44, similarly, at a radial extremity has a bead formation
  • the tyre 14 has a conventional construction and includes side walls 56 and 58 and a road-engaging surface 60.
  • the side wall 56 at a radial inner side, terminates In a section 64 which corresponds to and which is engagable with the bead formation 48.
  • tire side wall 58 has a corresponding section 68 which is engagable with the bead formation 50.
  • FIG. 1 illustrates on an enlarged scale structure inside the circle 50A in Figure 1.
  • a layer 70 of a plastics material 72 is applied to a radial outer surface of the base 40, to opposed inner surfaces of the side walls 42 and 44 and to the bead formations 48 and 50.
  • the layer 70 is continuous and extends without a break over these surfaces.
  • the material 72 is preferably polyurethane and is applied using any suitable technique e.g. by making use of a dipping, spraying, painting or moulding process. If necessary, a small amount of machining of the material 70 over the bead formations 48 and 50'can take place to ensure that outer surfaces, of the layer 70, which overly the bead formations 48 and 50, are brought into specification compliance. [0021]The described manufacturing process for the wheel rim 10 holds a number of benefits.
  • the polyurethane layer 70 constitutes a surface which can be machined as required, if necessary.
  • the polyurethane layer creates bead surfaces which are sea!ingiy engageable with corresponding surfaces of the tyre 14.
  • a high-friction Interface is also formed between the tyre and the polyurethane - this helps to prevent slippage of the tyre relative to the rim during high acceleration and high deceleration modes of operation.
  • the polyurethane layer acts as a sealer to any exposed fibre in the body 18 and this prevents moisture absorption by the fibre.
  • the seal formed by the layer 70 is over the entire inner surface of the peripheral section and thus acts as a surface sealing layer which prevents loss of air pressure through any apertures or passages which may have been formed in the carbon fibre surface.
  • the polyurethane has a smooth and attractive finish.
  • the use of the polyurethane results in a slight reduction in mass of the finished wheel rim.
  • the application of the polyurethane is easily effected in a time period which is less than the time period required for the machining of a prior art fibre wheel rim.
  • the polyurethane is abrasion resistant and thus is less likely to be damaged by tools which are used for engaging a tyre with the rim or for removing a tyre from the rim. If the polyurethane should be damaged then it can readily be repaired i.e. the rim can be refurbished as required in that respect.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)

Abstract

L'invention concerne une jante de roue en résine renforcée par des fibres comprenant des bourrelets de pneumatique faits de polyuréthane.
PCT/ZA2020/050003 2019-01-15 2020-01-15 Jante de roue WO2020150756A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA201900252 2019-01-15
ZA2019/00252 2019-01-15

Publications (1)

Publication Number Publication Date
WO2020150756A1 true WO2020150756A1 (fr) 2020-07-23

Family

ID=69191308

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2020/050003 WO2020150756A1 (fr) 2019-01-15 2020-01-15 Jante de roue

Country Status (1)

Country Link
WO (1) WO2020150756A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014082115A1 (fr) * 2012-11-30 2014-06-05 Carbon Revolution Pty Ltd Agencement de bord pour une roue composite
US20160325582A1 (en) * 2014-01-15 2016-11-10 ThyssenKrupp Carbon Components GmbH Vehicle wheel having a connection of a wheel rim with rim base made from fiber composite material and a wheel disc
WO2017100241A1 (fr) * 2015-12-07 2017-06-15 Enve Composites, Llc Ruban fond de jante pour jante de bicyclette

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014082115A1 (fr) * 2012-11-30 2014-06-05 Carbon Revolution Pty Ltd Agencement de bord pour une roue composite
US20160325582A1 (en) * 2014-01-15 2016-11-10 ThyssenKrupp Carbon Components GmbH Vehicle wheel having a connection of a wheel rim with rim base made from fiber composite material and a wheel disc
WO2017100241A1 (fr) * 2015-12-07 2017-06-15 Enve Composites, Llc Ruban fond de jante pour jante de bicyclette

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