GB932401A - Improvements in or relating to pneumatic tyres for vehicle wheels - Google Patents
Improvements in or relating to pneumatic tyres for vehicle wheelsInfo
- Publication number
- GB932401A GB932401A GB3173559A GB3173559A GB932401A GB 932401 A GB932401 A GB 932401A GB 3173559 A GB3173559 A GB 3173559A GB 3173559 A GB3173559 A GB 3173559A GB 932401 A GB932401 A GB 932401A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ribs
- channel
- channels
- circumferential
- knife cuts
- 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
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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/04—Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag
- B60C11/042—Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag further characterised by the groove cross-section
-
- 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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/0306—Patterns comprising block rows or discontinuous ribs
- B60C11/0309—Patterns comprising block rows or discontinuous ribs further characterised by the groove cross-section
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
932,401. Pneumatic tyre tread. PIRELLI S.p.A. Sept. 17, 1959 [March 18, 1959], No. 31735/59. Class 144 (2). A pneumatic tyre tread A comprises an odd number, such as five, uninterrupted circumferential ribs 1, 5, 6, 11 and 12 separated from each other by uninterrupted zig-zag circumferential channels 2, 3, 7 and 8, each channel being formed from conjoined portions, suffixed a and b, of different lengths with corresponding portions being parallel to each other in each channel, the central rib 1 having parallel 45 degrees knife cuts extending into the rib from the valleys of the channels 2, 3, and knife cuts 9 of the shape shown extending into the ribs 5, 6, 11 and 12 from the channels 2, 3, 7 and 8. The axially outer edges of the outer ribs 11 and 12 are serrated and transverse knife cuts 13 extend therefrom into the ribs 11 and 12. The shoulders B of the tyre are each completed by a series of concentric flattopped circumferential ribs 14. The axially inwardly-facing walls of channels 7 and 8 are formed, on the channel portions 7a and 8a respectively, with integral blocks 10 which project at an inclined angle towards the mid-circumferential plane of the tyre. The blocks are spaced from the base and opposite sidewall of the respective channel and serve to maintain the channel width.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT140559 | 1959-03-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB932401A true GB932401A (en) | 1963-07-24 |
Family
ID=11101436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3173559A Expired GB932401A (en) | 1959-03-18 | 1959-09-17 | Improvements in or relating to pneumatic tyres for vehicle wheels |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB932401A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4230512A (en) * | 1978-04-08 | 1980-10-28 | Bridgestone Tire Co., Ltd. | Center block side rib tread pattern for heavy vehicle radial tires |
US4332286A (en) * | 1978-05-26 | 1982-06-01 | Bridgestone Tire Company, Limited | Heavy duty pneumatic tire tread |
-
1959
- 1959-09-17 GB GB3173559A patent/GB932401A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4230512A (en) * | 1978-04-08 | 1980-10-28 | Bridgestone Tire Co., Ltd. | Center block side rib tread pattern for heavy vehicle radial tires |
US4332286A (en) * | 1978-05-26 | 1982-06-01 | Bridgestone Tire Company, Limited | Heavy duty pneumatic tire tread |
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