EP0101400A2
Expired / Lapsed
EP
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A pneumatic tire
Assignee: Grumman Corp
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Filing: 1983-07-28
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Granted: —
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Expires: 2003-07-28
Abstract
Abstract A pneumatic radial tire 10 having a plurality of annular semi-rigid bands 24,26 disposed in the crown portion of the tire. The bands extend substantially across the ground engaging tread portion 12 of the tire 10.
Inventors
- 👤 John Ronald Abbott
- 👤 Arthur Allen Goldstein
- 👤 Richard Joseph Olsen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 03:35
CPC Classifications
B; B60; B60C; B60C17/00; B60C9/00; B60C9/18
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
127 words
A radial tire having a ground-engaging tread portion having a pair of axially opposed tread edges, a pair of sidewall portions one extending from each of said lateral edges radially inwardly terminating in a bead portion, each of said bead portions having an inextensible reinforcing member therein, at least one fabric reinforcing ply structure extending from bead portion to bead portion through said sidewall portions and tread portion, characterized by an annular reinforcing structure disposed in said tread portion extending about the circumference of said tire, said annular reinforcing structure comprising a plurality of relatively annular bands which are disposed substantially across the width of said tread, each of said bands having a width of at least equal to the radial thickness of each of said bands.
Claim 2
Dependent Claim
127 words
A radial tire having a ground-engaging tread portion having a pair of axially opposed tread edges, a pair of sidewall portions one extending from each of said lateral edges radially inwardly terminating in a bead portion, each of said bead portions having an inextensible reinforcing member therein, at least one fabric reinforcing ply structure extending from bead portion to bead portion through said sidewall portions and tread portion, characterized by an annular reinforcing structure disposed in said tread portion extending about the circumference of said tire, said annular reinforcing structure comprising a plurality of relatively annular bands which are disposed substantially across the width of said tread, each of said bands having a width of at least equal to the radial thickness of each of said bands.
Claim 3
Dependent Claim
27 words
The tire according to claim 1 further characterized by the total supporting band width is at least eighty percent (80%) of the tread width of said tire.
Claim 4
Dependent Claim
27 words
The tire according to claim 1 further characterized by the total supporting band width is at least ninety-five percent (95%) of the tread width of said tire.
Claim 5
Dependent Claim
42 words
The tire according to claim 1 further characterized by the axially outer bands of said annular reinforcing structure being disposed from the closest respective tread edge a distance no greater than approximately ten percent (10X) of the tread width of the tire.
Claim 6
Dependent Claim
32 words
The tire according to claim 1 further characterized by each of said bands being spaced apart from each other an axial distance no greater than the nominal thickness of the thickest band.
Claim 7
Dependent Claim
27 words
The tire according to claim 1 further characterized by each of said bands being spaced a. distance axially apart no greater than approximately one-half inch (1.27 cm).
Claim 8
Dependent Claim
32 words
The tire according to claim 1 further characterized by said reinforcing structure comprises a center band and two side bands, one side band being disposed on each side of said center band.
Claim 9
Dependent Claim
32 words
The tire according to claim 7 further characterized by said center band being spaced apart from each of said side bands a distance no greater than one-tenth of an inch (.254 cm).
Claim 10
Dependent Claim
56 words
The tire according to claim 7 further characterized in that said center band has a width which is in the range of twenty-percent (20X) to sixty-percent (60%) of the total supported band said side bands each having a width in the range of twenty to forty percent (20% to 40%) of the total band supporting width.
Claim 11
Dependent Claim
29 words
The tire according to claim 7 further characterized by said center band and said side bands each having a width of approximately one-third of the total supporting band width.
Claim 12
Dependent Claim
43 words
The tire according to claim 1 further characterized by each of said bands having a radially outer surface, said diameter of the radially outer surface of each of said bands being no greater than twice the nominal band thickness of the thickest band.
Claim 13
Dependent Claim
52 words
.The tire according to claim 1 further characterized by each of said bands having a radially outer surface, each radially outer surface having a predetermined diameter, the difference between the diameter of each of said bands being no greater than one-half inch (1.27 cm) the nominal band thickness of the widest band.
Claim 14
Dependent Claim
34 words
The tire according to claim 7 further characterized by the radially outer surface of said side bands being equal to or less than the diameter of the radially outer surface of said center band.
Claim 15
Dependent Claim
34 words
The tire according to claim 13 further characterized by the difference in diameter between the radially outer surface of said side bands and said center band is no greater than one-half inch (1.27 cm).
Claim 16
Dependent Claim
29 words
The tire according to claim 1 further characterized by each of said bands being made of a composite material comprising a plurality of fibers embedded in a resin matrix.
Claim 17
Dependent Claim
34 words
The tire according to claim 15 further characterized by said fibers being selected from one of the following materials comprising of fiberglass, aramid, carbon, wire and said resin matrix being of the epoxy type.
Claim 18
Dependent Claim
34 words
The tire according to claim 15 further characterized by said fibers are oriented at an angle in the range of zero degrees to forty-five degrees with respect to the mid-circumferential centerplane of said tire.
Claim 19
Dependent Claim
34 words
The tire according to claim 15 further characterized by said fibers are oriented at an angle with respect to the mid-circumferential centerplane of said tire in the range of five degrees to twenty degrees.
Claim 20
Dependent Claim
35 words
.The tire according to claim 1 further characterized by the ultimate strength of the annular reinforcing structure divided by the modulus of the reinforcing structure to the two-thirds power being greater or equal to three.
Claim 21
Dependent Claim
42 words
The tire according to claim 1 futher characterized by the ultimate strength of the annular reinforcing structure divided by the modulus of the reinforcing structure to the two-thirds power being greater or equal to 3.0 and equal to or less than 7.0.
Claim 22
Dependent Claim
33 words
The tire according to claim 1 further characterized by the stiffness of the annular reinforcing structure being in the range of about four percent (4%) to ten percent (10%) of the tire stiffness.
Claim 23
Dependent Claim
33 words
The tire according to claim 1 further characterized by the stiffness of the annular reinforcing structure being in the range from about five percent (5%) to seven percent (7%) of the tire stiffness..
Claim 24
Dependent Claim
23 words
The tire according to claim 1 further characterized by the the stiffness of the annular reinforcing structure to the tire stiffness is 5.7%.
References Cited (Backward Citations)
No citation records indexed.
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