GB2142288A - Motor vehicle wheels - Google Patents

Motor vehicle wheels Download PDF

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Publication number
GB2142288A
GB2142288A GB08316630A GB8316630A GB2142288A GB 2142288 A GB2142288 A GB 2142288A GB 08316630 A GB08316630 A GB 08316630A GB 8316630 A GB8316630 A GB 8316630A GB 2142288 A GB2142288 A GB 2142288A
Authority
GB
United Kingdom
Prior art keywords
wheel
nylon
tyre
rim
coating
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.)
Granted
Application number
GB08316630A
Other versions
GB2142288B (en
GB8316630D0 (en
Inventor
Edward Howorth
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.)
Ford Motor Co
Original Assignee
Ford Motor Co
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 Ford Motor Co filed Critical Ford Motor Co
Priority to GB08316630A priority Critical patent/GB2142288B/en
Publication of GB8316630D0 publication Critical patent/GB8316630D0/en
Priority to DE19843417903 priority patent/DE3417903C2/en
Publication of GB2142288A publication Critical patent/GB2142288A/en
Application granted granted Critical
Publication of GB2142288B publication Critical patent/GB2142288B/en
Expired 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
    • B60B21/00—Rims
    • B60B21/10—Rims characterised by the form of tyre-seat or flange, e.g. corrugated
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)
  • Tires In General (AREA)

Abstract

A high-performance wheel of aluminium or magnesium alloy, is subject to abrasion caused by movement of the pneumatic tyre against the wheel rim. To increase the ability of the wheel to withstand this abrasion, the wheel rim is coated with a plastics material, such as nylon, which itself is wear resistant. The coating can be applied as a powder which is then melted in an oven. The whole wheel may be coated. <IMAGE>

Description

SPECIFICATION Motor vehicle wheels This invention relates to motor vehicle wheels, and to a method of increasing the durability of such wheels.
Wheels of aluminium or magnesium alloys are widely used on modern cars, particularly on high performance cars. Such alloy wheels are lighter than conventional steel wheels, but the material is softer. Experience has shown that appreciable wear occurs on the rims of alloy wheels where the tyre moves against the rim. The problem is particularly marked with low profile tyres, and is aggravated by road grit and dust which enters between the tyre and the wheel rim lip.
According to the present invention, there is provided a method of increasing the durability of a motor vehicle wheel which is adapted to support a pneumatic tyre, wherein at least the surfaces of the wheel which are to be in contact with the tyre are coated with a wearresistant plastics coating.
The invention also provides a motor vehicle wheel adapted to support a pneumatic tyre, at least the surfaces of the wheel which are to be in contact with the tyre being coated with a wear-resistant plastics coating.
Preferably the whole of the wheel has a plastics coating. This can increase the resistance of the whole of the wheel to corrosion and accidental damage while also providing resistance to abrasion caused by the tyre.
The plastics may be nylon. Both nylon 11 and nylon 1 2 have been found suitable. The nylon (or other plastics) may be used in powder form, with the powder being electrostatically applied and the wheel then being heated in an oven so that the powder melts and flows over the wheel surface.
The invention will now be further described, by way of example, with reference to the accompanying drawing which shows a section through the rim of an alloy motor vehicle wheel.
The rim 10 has an inner tyre-retaining lip 1 2 and an outer lip 14. On rear wheels, the inner lip 1 2 tends to wear most, and the area of metal which may be worn away is shaded and indicated by short arrows in the drawing.
On front wheels, the outer lip 14 may wear as indicated.
To reduce this wear, the wheel is subjected to a chromic phosphoric acid pre-treatment.
Instead of a conventional primer coat, nylon powder is electrostatically applied to the whole of the wheel. Nylon 11 and 1 2 have both been found to be suitable. The wheel with the powder on it is then placed in an oven for twenty minutes at 1 90 C to 220"C to melt the nylon and complete the adhesion.
A coating thickness of 90-120 microns is obtained.
A conventional top coat is then applied over the nylon coating, but no lacquer over the top coat is necessary, since the necessary wear resistance is provided by the nylon.
The nylon coating substantially improves the resistance of the wheel rim to wear caused by movement of the tyre on the rim. In addition improved corrosion resistance and damage resistance are both obtained. Improvements are also achieved in resisting build up of foreign matter on the wheel rim, between the tyre and the rim, since it becomes more difficult for the foreign matter to adhere to the rim.
1. A method of increasing the durability of a motor vehicle wheel which is adapted to support a pneumatic tyre, wherein at least the surfaces of the wheel which are to be in contact with the tyre are coated with a wearresistant plastics coating.
2. A method as claimed in Claim 1, wherein the whole of the wheel is coated with the plastics coating.
3. A method as claimed in Claim 1 or Claim 2, wherein the plastics coating is applied in powder form, and the wheel with the coating is then heated to melt the powder.
4. A method as claimed in Claim 3, wherein the powder is applied electrostatically.
5. A method as claimed in any preceding claim, wherein the plastics coating is nylon.
6. A motor vehicle wheel adapted to support a pneumatic tyre, wherein at least the surfaces of the wheel which are to be in contact with the tyre are coated with a wearresistant plastics coating.
7. A wheel as claimed in Claim 6, wherein the whole of the wheel is coated with the plastics coating.
8. A wheel as claimed in Claim 6 or Claim 7, wherein the plastics coating is nylon.
9. A wheel as claimed in Claim 8, wherein the nylon is nylon 11 or nylon 1 2.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (9)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Motor vehicle wheels This invention relates to motor vehicle wheels, and to a method of increasing the durability of such wheels. Wheels of aluminium or magnesium alloys are widely used on modern cars, particularly on high performance cars. Such alloy wheels are lighter than conventional steel wheels, but the material is softer. Experience has shown that appreciable wear occurs on the rims of alloy wheels where the tyre moves against the rim. The problem is particularly marked with low profile tyres, and is aggravated by road grit and dust which enters between the tyre and the wheel rim lip. According to the present invention, there is provided a method of increasing the durability of a motor vehicle wheel which is adapted to support a pneumatic tyre, wherein at least the surfaces of the wheel which are to be in contact with the tyre are coated with a wearresistant plastics coating. The invention also provides a motor vehicle wheel adapted to support a pneumatic tyre, at least the surfaces of the wheel which are to be in contact with the tyre being coated with a wear-resistant plastics coating. Preferably the whole of the wheel has a plastics coating. This can increase the resistance of the whole of the wheel to corrosion and accidental damage while also providing resistance to abrasion caused by the tyre. The plastics may be nylon. Both nylon 11 and nylon 1 2 have been found suitable. The nylon (or other plastics) may be used in powder form, with the powder being electrostatically applied and the wheel then being heated in an oven so that the powder melts and flows over the wheel surface. The invention will now be further described, by way of example, with reference to the accompanying drawing which shows a section through the rim of an alloy motor vehicle wheel. The rim 10 has an inner tyre-retaining lip 1 2 and an outer lip 14. On rear wheels, the inner lip 1 2 tends to wear most, and the area of metal which may be worn away is shaded and indicated by short arrows in the drawing. On front wheels, the outer lip 14 may wear as indicated. To reduce this wear, the wheel is subjected to a chromic phosphoric acid pre-treatment. Instead of a conventional primer coat, nylon powder is electrostatically applied to the whole of the wheel. Nylon 11 and 1 2 have both been found to be suitable. The wheel with the powder on it is then placed in an oven for twenty minutes at 1 90 C to 220"C to melt the nylon and complete the adhesion. A coating thickness of 90-120 microns is obtained. A conventional top coat is then applied over the nylon coating, but no lacquer over the top coat is necessary, since the necessary wear resistance is provided by the nylon. The nylon coating substantially improves the resistance of the wheel rim to wear caused by movement of the tyre on the rim. In addition improved corrosion resistance and damage resistance are both obtained. Improvements are also achieved in resisting build up of foreign matter on the wheel rim, between the tyre and the rim, since it becomes more difficult for the foreign matter to adhere to the rim. CLAIMS
1. A method of increasing the durability of a motor vehicle wheel which is adapted to support a pneumatic tyre, wherein at least the surfaces of the wheel which are to be in contact with the tyre are coated with a wearresistant plastics coating.
2. A method as claimed in Claim 1, wherein the whole of the wheel is coated with the plastics coating.
3. A method as claimed in Claim 1 or Claim 2, wherein the plastics coating is applied in powder form, and the wheel with the coating is then heated to melt the powder.
4. A method as claimed in Claim 3, wherein the powder is applied electrostatically.
5. A method as claimed in any preceding claim, wherein the plastics coating is nylon.
6. A motor vehicle wheel adapted to support a pneumatic tyre, wherein at least the surfaces of the wheel which are to be in contact with the tyre are coated with a wearresistant plastics coating.
7. A wheel as claimed in Claim 6, wherein the whole of the wheel is coated with the plastics coating.
8. A wheel as claimed in Claim 6 or Claim 7, wherein the plastics coating is nylon.
9. A wheel as claimed in Claim 8, wherein the nylon is nylon 11 or nylon 1 2.
GB08316630A 1983-06-18 1983-06-18 Motor vehicle wheels Expired GB2142288B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08316630A GB2142288B (en) 1983-06-18 1983-06-18 Motor vehicle wheels
DE19843417903 DE3417903C2 (en) 1983-06-18 1984-05-15 Use of wear-resistant plastic material as a primer layer on motor vehicle rims for pneumatic tires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08316630A GB2142288B (en) 1983-06-18 1983-06-18 Motor vehicle wheels

Publications (3)

Publication Number Publication Date
GB8316630D0 GB8316630D0 (en) 1983-07-20
GB2142288A true GB2142288A (en) 1985-01-16
GB2142288B GB2142288B (en) 1986-11-05

Family

ID=10544442

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08316630A Expired GB2142288B (en) 1983-06-18 1983-06-18 Motor vehicle wheels

Country Status (2)

Country Link
DE (1) DE3417903C2 (en)
GB (1) GB2142288B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100430154C (en) * 2003-08-20 2008-11-05 中国第一汽车集团公司 Coating on multiple keys of vehicle driving shaft and thermal coating process
DE102018202231A1 (en) 2018-02-14 2019-08-14 Ford Global Technologies, Llc Vehicle wheel and method for its manufacture

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4124670C2 (en) * 1991-07-25 1998-07-09 Cipo Industrieprodukt Gmbh Process for making a paint
US6746064B1 (en) * 2001-11-07 2004-06-08 Xtek. Inc. Composite wheel for tracked vehicles

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1206928A (en) * 1968-07-05 1970-09-30 Kelsey Hayes Co Improvements in the manufacture of vehicle wheels
GB1359463A (en) * 1970-06-20 1974-07-10 Dunlop Holdings Ltd Vehicle wheels

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1322381A (en) * 1970-01-02 1973-07-04 British Aluminium Co Ltd Protective coated aluminium and a process for the application of a protective coating to aluminium
DE3033586A1 (en) * 1980-09-06 1982-04-15 Reichhold Chemie AG, 6050 Offenbach HEAT-CURABLE COATING AGENT AND ITS USE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1206928A (en) * 1968-07-05 1970-09-30 Kelsey Hayes Co Improvements in the manufacture of vehicle wheels
GB1359463A (en) * 1970-06-20 1974-07-10 Dunlop Holdings Ltd Vehicle wheels

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100430154C (en) * 2003-08-20 2008-11-05 中国第一汽车集团公司 Coating on multiple keys of vehicle driving shaft and thermal coating process
DE102018202231A1 (en) 2018-02-14 2019-08-14 Ford Global Technologies, Llc Vehicle wheel and method for its manufacture

Also Published As

Publication number Publication date
GB2142288B (en) 1986-11-05
DE3417903A1 (en) 1985-01-03
DE3417903C2 (en) 1986-12-04
GB8316630D0 (en) 1983-07-20

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee