US3789899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic tires
Assignee: Yokohama Rubber Co Ltd
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Filing: 1972-06-12
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Granted: 1974-02-05
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Expires: 1992-06-12
Abstract
Abstract A pneumatic tire in which the tire is built by arranging a layer of an elastic material, such as rubber, radially outwardly of a reinforcement layer extending from one bead region to the other bead region of the tire and formed of at least one reinforcement member which has its one end located at either one of the bead regions and is wound up helically or circumferentially in a direction at an angle of 0* to 20* with respect to the rotating direction of the tire, whereby the number of the cut ends of said at least one reinforcement member is substantially decreased, the resistance of the tire to centrifugal force is increased over the entire area of the tire, the occurrence of steady wave is prevented and the tire withstands high speed rotation.
Inventors
- 👤 T Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:39
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/30; B29D30/3021; B29D30/3028; B29D30/3035; B60; B60C; B60C9/00; B60C9/02; B60C9/023; B60C9/18; B60C9/20; B60C9/22; B60C9/2204; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10765; Y10T152/10783; Y10T152/10855; Y10T152/10873
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
124 words
A pneumatic tire in which the tire is built by arranging a layer of an elastic material, such as rubber, radially outwardly of a reinforcement layer extending from the bead region on one side to the bead region on the other side of the tire and formed of at least one reinforcement member, said at least one reinforcement member having at least one end thereof forming a bead member and being wound up in a direction at an angle of 0*20* to the rotating direction of the tire wherein said bead member and reinforcement member are continuous whereby the resistance of the tire against centrifugal force is increased over the entire region of the tire and the occurrence of a steady wave is prevented.
Claim 2
Dependent Claim
124 words
A pneumatic tire in which the tire is built by arranging a layer of an elastic material, such as rubber, radially outwardly of a reinforcement layer extending from the bead region on one side to the bead region on the other side of the tire and formed of at least one reinforcement member, said at least one reinforcement member having at least one end thereof forming a bead member and being wound up in a direction at an angle of 0*20* to the rotating direction of the tire wherein said bead member and reinforcement member are continuous whereby the resistance of the tire against centrifugal force is increased over the entire region of the tire and the occurrence of a steady wave is prevented.
Claim 3
Dependent Claim
48 words
A pneumatic tire as defined in claim 1, wherein each of said at least one reinforcement member is composed of a core of a material having low elongation and a sheath of an elastic material enclosing said core, and is in the shape of a cord or tape.
Claim 4
Dependent Claim
34 words
A pneumatic tire as defined in claim 1, wherein said at least one reinforcement member is wound in a multiplicity of layers at the bead regions of the tire to form said bead members.
Claim 5
Dependent Claim
61 words
A pneumatic tire as defined in claim 1, wherein there is provided an inner liner located radially inwardly of and extending along said reinforcement layer and serving as guide means in the winding operation of said reinforcement member, said inner liner consisting of an elastic material into which a plurality of cellulose fibers are incorporated in spaced relation with each other.
Claim 6
Dependent Claim
39 words
A pneumatic tire as defined in claim 1, wherein at least one of said reinforcement members is wound up at the crown region of the tire located radially outwardly of said reinforcement layer, to form an additional reinforcement layer.
Claim 7
Dependent Claim
21 words
A pneumatic tire as defined in claim 1, wherein the aspect ratio of the tire lies within the range of 0.2-0.4.
Claim 8
Dependent Claim
161 words
A pneumatic tire in which at least one reinforcement member extending from the bead region on one side to the shoulder region on the other side of the tire and at least one reinforcement member extending from the bead region on said other side to the shoulder region on said one side of the tire are respectively wound up at an angle of 0* - 20* to the rotating direction of the tire to form a reinforcement layer, and at least one bead member wherein the bead member and reinforcement member are continuous, said second-mentioned at least one reinforcement member being superimposed on said first-mentioned at least one reinforced member at the crown region of the tire, and a layer of an elastic material, such as rubber, is arranged radially outwardly of said reinforcement layer, whereby the resistance of the tire to centrifugal force is increased over the entire region of the tire and the occurrence of steady wave is prevented.
Claim 9
Dependent Claim
161 words
A pneumatic tire in which at least one reinforcement member extending from the bead region on one side to the shoulder region on the other side of the tire and at least one reinforcement member extending from the bead region on said other side to the shoulder region on said one side of the tire are respectively wound up at an angle of 0* - 20* to the rotating direction of the tire to form a reinforcement layer, and at least one bead member wherein the bead member and reinforcement member are continuous, said second-mentioned at least one reinforcement member being superimposed on said first-mentioned at least one reinforced member at the crown region of the tire, and a layer of an elastic material, such as rubber, is arranged radially outwardly of said reinforcement layer, whereby the resistance of the tire to centrifugal force is increased over the entire region of the tire and the occurrence of steady wave is prevented.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |