US3815652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire with flexible cord carcass construction and method of making same
Assignee: Pneumatiques Caoutchouc Manufacture et Plastiques Kleber Colombes SA
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Filing: 1972-04-05
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Granted: 1974-06-11
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Expires: 1992-04-05
Abstract
Abstract A tire and method of making the same, according to which the tire possesses a radial carcass formed at least within the sidewalls by meridian arcs from pliable cord; the arcs which are spaced circumferentially are constituted from one and the same continuous flexible cord or from a small number of such cords while circumferenial portions extend longitudinally and alternatively on one and on the other side in the beads whereby the circumferential portions are juxtaposed in the form of longitudinal bundles made from strand material which constitutes the bead reinforcements.
Inventors
- 👤 J Pouilloux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:53
CPC Classifications
B; B60; B60C; B60C15/00; B60C15/0009; B60C15/0018; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/20; B29C70/205; B29C70/207; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/34; B60C9/00; B60C9/02; B60C9/023; B29D30/10; B29D30/16; B29D2030/1664; B29D2030/1678; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10819; Y10T152/10828; Y10T152/10855
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
95 words
A tire with a radial carcass formed, at leas within its sidewalls, by meridian arcs of a flexible cord means, characterized in that circumferentially spaced arcs of the carcass are constituted from one and the same continuous flexible cord means forming, simultaneously, the spaced arcs and circumferential portions extending longitudinally and alternatively in one and the other of tire beads of the tire, said cord means being repeatedly wound on the tire such that said circumferential portions are juxtaposed in the form of longitudinal bundles of cord means which constitute reinforcement means for the beads.
Claim 2
Dependent Claim
95 words
A tire with a radial carcass formed, at leas within its sidewalls, by meridian arcs of a flexible cord means, characterized in that circumferentially spaced arcs of the carcass are constituted from one and the same continuous flexible cord means forming, simultaneously, the spaced arcs and circumferential portions extending longitudinally and alternatively in one and the other of tire beads of the tire, said cord means being repeatedly wound on the tire such that said circumferential portions are juxtaposed in the form of longitudinal bundles of cord means which constitute reinforcement means for the beads.
Claim 3
Dependent Claim
19 words
A tire according to claim 1, characterized in that the carcass is constituted essentially by a single continuous cord.
Claim 4
Dependent Claim
21 words
A tire according to claim 1, characterized in that the carcass is constituted essentially by a small number of continuous cords.
Claim 5
Dependent Claim
58 words
A tire according to claim 1, characterized in that each cord means forms successively a meridian arc and a circumferential portion extending longitudinally within the beAd, a second meridian arc spaced from the first arc and followed by a second circumferential portion extending longitudinally within the other bead and so on along the entire circumference of the carcass.
Claim 6
Dependent Claim
23 words
A tire according to claim 4, characterized in that the arcs of the carcass are connected to the circumferential portions by elbow portions.
Claim 7
Dependent Claim
20 words
A tire according to claim 5, characterized in that the elbow portions are substantially at right angle to one another.
Claim 8
Dependent Claim
24 words
A tire according to claim 5, characterized in that the arcs of the carcass are connected to the circumferential portions by rounded-off elbow portions.
Claim 9
Dependent Claim
24 words
A tire according to claim 5, characterized in that the arcs of the carcass are connected to the circumferential portions by oblique elbow portions.
Claim 10
Dependent Claim
33 words
A tire according to claim 5, characterized in that the elbow portions cross each other obliquely within a transitional area between the beads and sidewalls to form a structure more resistant to torques.
Claim 11
Dependent Claim
33 words
A tire according to claim 5, characterized in that resistant reinforcement means of the beads are formed by the longitudinal bundles of the cord means of the carcass and by additional reinforcing elements.
Claim 12
Dependent Claim
33 words
A tire according to claim 1, characterized in that resistant reinforcement means of the beads are formed by the longitudinal bundles of the cord means of the carcass and by additional reinforcing elements.
Claim 13
Dependent Claim
15 words
A tire according to claim 11, characterized in that said additional reinforcing elements include strips.
Claim 14
Dependent Claim
15 words
A tire according to claim 11, characterized in that said additional reinforcing elements include flippers.
Claim 15
Dependent Claim
17 words
A tire according to claim 11, characterized in that said additional reinforcing elements include auxiliary bead wires.
Claim 16
Dependent Claim
21 words
A tire according to claim 11, characterized in that said auxiliary reinforcing elements include at least one strip of rubber hard.
Claim 17
Dependent Claim
19 words
A tire according to claim 11, characterized in that the additional reinforcing elements are constituted by a continuous wire.
Claim 18
Dependent Claim
16 words
A tire according to claim 16, characterized in that said additional reinforcing elements are wound circumferentially.
Claim 19
Dependent Claim
17 words
A tire according to claim 16, characterized in that said additional reinforcing elements are wound in zig-zag.
Claim 20
Dependent Claim
36 words
A tire according to claim 11, characterized in that a top belt means is formed by a continuous cord wound zig-zag in a number of superposed layers with portions on a bias at a slight angle.
Claim 21
Dependent Claim
41 words
A tire according to claim 19, in which the continuous cord means constituting the carcass and the continuous cord constituting at least one of the belt means and additional reinforcing elements of the beads overlap one another in a woven structure.
Claim 22
Dependent Claim
19 words
A tire according to claim 11, characterized in that the additional reinforcing elements are constituted by a continuous cord.
Claim 23
Dependent Claim
16 words
A tire according to claim 21, characterized in that said additional reinforcing elements are wound circumferentially.
Claim 24
Dependent Claim
17 words
A tire according to claim 21, characterized in that said additional reinforcing elements are wound in zig-zag.
Claim 25
Dependent Claim
36 words
A tire according to claim 1, characterized in that a top belt means is formed by a continuous cord wound zig-zag in a number of superposed layers with portions on a bias at a slight angle.
Claim 26
Dependent Claim
41 words
A tire according to claim 24, in which the continuous cord means constituting the carcass and the continuous cord constituting at least one of the belt means and additional reinforcing elements of the beads overlap one another in a woven structure.
Claim 27
Independent Claim
178 words
A method for manufacturing a tire having a radial carcass formed, at least within the sidewall portions thereof, of meridian arcs of flexible cord material, comprising the steps of laying the cord forming the carcass in such a manner that it extends a predetermined distance in the circumferential direction within the area of the tire forming the bead on one side of the tire, thereupon laying the cord in a transverse direction corresponding to a meridian Arc, thereafter laying the cord so as to extend again a predetermined distance in the longitudinal direction within the area of a bead on the other side of the tire, thereafter laying a transverse portion forming a meridian arc spaced from the first-mentioned arc, thereafter laying another portion in the circumferential direction on the one side of the tire and so on in such a manner that the circumferential portions laid in the area of the bead of the tire are juxtaposed to one another while the transverse portions constituting the meridian arcs of the tire carcass are disposed adjacent one another.
Claim 28
Independent Claim
178 words
A method for manufacturing a tire having a radial carcass formed, at least within the sidewall portions thereof, of meridian arcs of flexible cord material, comprising the steps of laying the cord forming the carcass in such a manner that it extends a predetermined distance in the circumferential direction within the area of the tire forming the bead on one side of the tire, thereupon laying the cord in a transverse direction corresponding to a meridian Arc, thereafter laying the cord so as to extend again a predetermined distance in the longitudinal direction within the area of a bead on the other side of the tire, thereafter laying a transverse portion forming a meridian arc spaced from the first-mentioned arc, thereafter laying another portion in the circumferential direction on the one side of the tire and so on in such a manner that the circumferential portions laid in the area of the bead of the tire are juxtaposed to one another while the transverse portions constituting the meridian arcs of the tire carcass are disposed adjacent one another.
Claim 29
Dependent Claim
45 words
A method according to claim 26, characterized in that a single continuous cord is used to form the carcass of the tire as well as the bundle of reinforcing cord constituted by the juxtaposed circumferentially extending portions and forming the reinforcements for the tire beads.
Claim 30
Dependent Claim
34 words
A method according to claim 26, characterized in that a small number of cords are used to form the radial carcass of the tire consisting of the meridian arcs and the longitudinal reinforcing portions.
Claim 31
Dependent Claim
29 words
A method according to claim 26, wherein cord is laid in such a manner as to form elbow sections of substantially right angle between the longitudinal and transverse portions.
Claim 32
Dependent Claim
27 words
A method according to claim 26, wherein the cord is laid in such a manner as to form rounded-off transitional portions between the longitudinal and transverse portions.
Claim 33
Dependent Claim
24 words
A method according to claim 26, characterized in that mutually crossing rounded-off portions are formed between the circumferential and transverse portions of the cord.
Claim 34
Dependent Claim
40 words
A method according to claim 26, characterized by simultaneously laying a belt from a continuous cord with the laying of the carcass in such a manner that the meridian arcs and the belt overlap one another in a woven structure.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |