ES477867A1 - Improvements relating to pneumatic tyres made from unreinforced elastic material - Google Patents
Improvements relating to pneumatic tyres made from unreinforced elastic materialInfo
- Publication number
- ES477867A1 ES477867A1 ES477867A ES477867A ES477867A1 ES 477867 A1 ES477867 A1 ES 477867A1 ES 477867 A ES477867 A ES 477867A ES 477867 A ES477867 A ES 477867A ES 477867 A1 ES477867 A1 ES 477867A1
- Authority
- ES
- Spain
- Prior art keywords
- tyre
- point
- elastic material
- rotation
- axis
- 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.)
- Expired
Links
- 239000013013 elastic material Substances 0.000 title abstract 2
- 239000011324 bead Substances 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
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
- B60C5/00—Inflatable pneumatic tyres or inner tubes
- B60C5/01—Inflatable pneumatic tyres or inner tubes without substantial cord reinforcement, e.g. cordless tyres, cast tyres
-
- 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
- B60C3/00—Tyres characterised by the transverse section
- B60C3/04—Tyres characterised by the transverse section characterised by the relative dimensions of the section, e.g. low profile
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Pneumatic tyres made from elastic material with no reinforcements other than bead wires are constructed to substantially reduce or eliminate circumferential deformation at the top of the tyre by adopting a meridian profile of the inner wall, for at least that part of the tyre located radially outside the points E, in accordance with the equation < IMAGE > in which: ' rho m' is the radius of the meridian curvature of a point (A) on the innerwall of the tyre, 'y' is the distance of the point A from the axis of rotation of the tyre measured parallel to the equatorial plane of the tyre, 'Re' is the distance of the point (E) of the inner wall, which is at a maximum distance from the equatorial plane, from the axis of rotation of the tyre measured parallel to the equatorial plane, ' phi ' is the angle formed by a tangent to the inner wall at point A with a line passing through point A parallel to the axis of rotation of the tyre.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7805155A FR2417405A1 (en) | 1978-02-21 | 1978-02-21 | IMPROVEMENT IN TIRES IN NON-ARMORED ELASTIC MATERIAL |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES477867A1 true ES477867A1 (en) | 1979-08-01 |
Family
ID=9204935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES477867A Expired ES477867A1 (en) | 1978-02-21 | 1979-02-20 | Improvements relating to pneumatic tyres made from unreinforced elastic material |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS54122505A (en) |
| AU (1) | AU525625B2 (en) |
| BE (1) | BE874131A (en) |
| BR (1) | BR7901136A (en) |
| CA (1) | CA1105817A (en) |
| DE (1) | DE2906764A1 (en) |
| ES (1) | ES477867A1 (en) |
| FR (1) | FR2417405A1 (en) |
| GB (1) | GB2014916B (en) |
| IT (1) | IT1118392B (en) |
| LU (1) | LU80947A1 (en) |
| NL (1) | NL7901356A (en) |
| SE (1) | SE7901497L (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3358900B2 (en) * | 1993-12-16 | 2002-12-24 | 住友ゴム工業株式会社 | Pneumatic tire |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA7259B (en) * | 1971-01-16 | 1972-09-27 | Dunlop Ltd | Tyres |
| FR2314059A1 (en) * | 1975-06-12 | 1977-01-07 | Michelin & Cie | UNREINFORCED TIRE ENCLOSURES |
| FR2314061A1 (en) * | 1975-06-12 | 1977-01-07 | Michelin & Cie | NON-REINFORCED TIRE COVERS, WITH REINFORCED SHOULDERS |
| US4006767A (en) * | 1975-10-08 | 1977-02-08 | The Firestone Tire & Rubber Company | Pneumatic tires |
-
1978
- 1978-02-21 FR FR7805155A patent/FR2417405A1/en active Granted
-
1979
- 1979-02-13 BE BE193430A patent/BE874131A/en not_active IP Right Cessation
- 1979-02-19 JP JP1828479A patent/JPS54122505A/en active Pending
- 1979-02-20 IT IT67375/79A patent/IT1118392B/en active
- 1979-02-20 LU LU80947A patent/LU80947A1/en unknown
- 1979-02-20 SE SE7901497A patent/SE7901497L/en not_active Application Discontinuation
- 1979-02-20 AU AU44391/79A patent/AU525625B2/en not_active Expired
- 1979-02-20 ES ES477867A patent/ES477867A1/en not_active Expired
- 1979-02-21 GB GB7906102A patent/GB2014916B/en not_active Expired
- 1979-02-21 NL NL7901356A patent/NL7901356A/en not_active Application Discontinuation
- 1979-02-21 DE DE19792906764 patent/DE2906764A1/en not_active Ceased
- 1979-02-21 BR BR7901136A patent/BR7901136A/en unknown
- 1979-02-21 CA CA322,051A patent/CA1105817A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2014916B (en) | 1982-07-21 |
| FR2417405A1 (en) | 1979-09-14 |
| DE2906764A1 (en) | 1979-08-23 |
| GB2014916A (en) | 1979-09-05 |
| AU4439179A (en) | 1979-08-30 |
| SE7901497L (en) | 1979-08-22 |
| CA1105817A (en) | 1981-07-28 |
| FR2417405B1 (en) | 1981-09-18 |
| NL7901356A (en) | 1979-08-23 |
| AU525625B2 (en) | 1982-11-18 |
| JPS54122505A (en) | 1979-09-22 |
| LU80947A1 (en) | 1979-06-18 |
| BE874131A (en) | 1979-05-29 |
| BR7901136A (en) | 1979-10-02 |
| IT1118392B (en) | 1986-02-24 |
| IT7967375A0 (en) | 1979-02-20 |
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| ES477867A1 (en) | Improvements relating to pneumatic tyres made from unreinforced elastic material | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19971001 |