Patent EP0159888A2 successfully refreshed from Google Patents.
EP0159888A2
Expired / Lapsed
EP
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Non-pneumatic tire
Assignee: Cessione uniroyal Goodrich Licensing Services Inc
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Filing: 1985-04-15
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Granted: —
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Expires: 2005-04-15
Abstract
Abstract A tire having an annular body (16) of resilient elastomeric material with an outer cylindrical member (18) at the outer pe- ripherythereof which may carry a tread and a coaxial, coextensive inner cylindrical member (22) atthe inner periphery thereof for mounting on a wheel rim. The outer cylindrical member is supported and cushioned by a plurality of circumferentially spaced-apart rib members (26) and one or more web members (32). The rib members extend generally axially along the inner and outer cylindrical members and are inclined at an angle of 15° to 75° to radial planes which intersect them at their radially inner ends, and each web member preferably lies in a plane that is perpendicular to the rotational axis of the tire or, alternatively, may either take the form of a frustrum of a right circular cone having as its principal axis the rotational axis of the tire or may form a partial helix about the rotational axis of the tire. The inner and outer cylindrical members, rib mbers and web member(s) are integral with or otherwise fastened to one another. One half of the axial length of the rib members may be inclined to one of the intersecting radial planes and the other half of the axial length of the rib members may be inclined to the opposite side of the intersecting planes Methods for making the tire and fastening it to the wheel lso disclosed.
Inventors
- 👤 Giles J. Page
- 👤 Richard Palinkas
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 14:06
CPC Classifications
B; B60; B60C; B60C7/00; B60C7/24; B60C7/28; B60C15/00; B60C15/02; B60C15/0209; B60C15/0213; B60C15/0223; B60C7/10; B60C7/12; B60C7/26
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
148 words
A tire comprising an annular body of resilient elastomeric material having a generally cylindrical outer member at the outer periphery thereof, a generally cylindrical inner member spaced radially inward from and coaxial with said outer member, a plurality of axially extending, circumferentially spaced-apart rib members connected at their corresponding inner and outer ends to said inner and outer cylindrical members, said rib members being generally inclined at an angle of about 15° to 75° to radial planes which intersect them at their inner ends, and at least one web member having opposite side faces, said web member having its inner and outer peripheries connected respectively to said inner and outer cylindrical members and being connected on at least one of its side faces to at least one of said rib members to thereby form with said rib member a load-carrying and cushioning structure for said outer cylindrical member.
Claim 2
Dependent Claim
148 words
A tire comprising an annular body of resilient elastomeric material having a generally cylindrical outer member at the outer periphery thereof, a generally cylindrical inner member spaced radially inward from and coaxial with said outer member, a plurality of axially extending, circumferentially spaced-apart rib members connected at their corresponding inner and outer ends to said inner and outer cylindrical members, said rib members being generally inclined at an angle of about 15° to 75° to radial planes which intersect them at their inner ends, and at least one web member having opposite side faces, said web member having its inner and outer peripheries connected respectively to said inner and outer cylindrical members and being connected on at least one of its side faces to at least one of said rib members to thereby form with said rib member a load-carrying and cushioning structure for said outer cylindrical member.
Claim 3
Dependent Claim
69 words
A tire as claimed in claim 1 wherein said web member is planar, is perpendicular to the rotational axis of the tire and is positioned about half way intermediate the axial ends of said cylindrical members, and wherein each of said rib members extends axially of said web member and has a portion lying to each side of and connected to the respective side face of said web member.
Claim 4
Dependent Claim
51 words
A tire as claimed in claim 2 wherein the rib member portions on one side of said web member each make the same angle to their respective intersecting radial planes as the rib member portions on the other side of said web member each make to their respective intersecting radial planes.
Claim 5
Dependent Claim
60 words
A tire as claimed in claim 2 wherein the rib member portions on one side of said web member each make an angle to their respective intersecting radial planes that is equal to but oppositely directed from the angle that the rib member portions on the other side of said web member each make with their respective intersecting radial planes.
Claim 6
Dependent Claim
104 words
A tire as claimed in claim 1 comprising first and second web members each being planar, being positioned perpendicular to the rotational axis of the tire, and having its inner and outer peripheries connected respectively to said inner and outer cylindrical members, said first web member being positioned at one axial end of said inner and outer cylindrical members and being connected on one of its side faces to said rib members and said second web member being positioned at the other axial end of said inner and outer cylindrical members and being connected on one of its side faces to said rib members.
Claim 7
Dependent Claim
123 words
A planar tire as claimed in claim 5 and further including a third planar web member positioned perpendicular to the rotational axis of the tire and having opposite side faces, said third web member having its inner and outer peripheries connected respectively to said inner and outer cylindrical members, said third web member being positioned about half way intermediate the axial ends of said cylindrical members, said rib members extending axially of and to each side of said third web member, a first set of rib member portions connecting said first web member to one side of said third web member and a second set of rib member portions connecting said second web member to the other side of said third web member.
Claim 8
Dependent Claim
71 words
A tire as claimed in claim 5 or claim 6 wherein said rib member portions of said first and second sets are each of substantially equal axial length, each corresponding to about one-half of the axial length of the inner and outer cylindrical members, and wherein each rib member portion of each set makes an angle with its respective intersecting radial plane, all such angles being equal and being similarly directed.
Claim 9
Dependent Claim
92 words
A tire as claimed in claim 5 or claim 6 wherein said rib member portions of said first and second sets are each of substantially equal axial length, each corresponding to about one-half of the axial length of the inner and outer cylindrical members, and wherein each rib member portion of each set makes an angle with its respective intersecting radial plane, all such angles being equal but the angles of rib member portions in the first set being oppositely directed to the angles of rib member portions in the second set.
Claim 10
Dependent Claim
71 words
A tire as claimed in claim 1 wherein said web member is in the form of a frustrum of a right circular cone having as its principal axis the rotational axis of the tire, wherein said rib members extend axially of and to each side of said web member, and wherein said web member is connected on each of its side faces to respective portions of each of said rib members.
Claim 11
Dependent Claim
78 words
A tire as claimed in claim 9 and further including a second web member in the form of a right circular cone having as its principal axis the rotational axis of the tire, said second web member having its inner and outer peripheries connected respectively to said inner and outer cylindrical members and being connected on each of its side faces to respective portions of each of said rib members, the apices of said cones being oppositely directed.
Claim 12
Dependent Claim
14 words
A tire as claimed in claim 10 wherein said web members intersect one another.
Claim 13
Dependent Claim
19 words
A tire as claimed in claim 10 wherein said web members are substantially in abutting relationship with one another.
Claim 14
Dependent Claim
107 words
A tire as claimed in claim 1 wherein said web member forms a partial helix about the rotational axis of the tire, and further including a plurality of additional web members each of which forms a partial helix about the rotational axis of the tire, said rib members extending axially of and to each side of said web members, each of said web members being connected on each of their side faces to a respective portion of at least one of said rib members, and each of said plurality of web members having its inner and outer peripheries connected respectively to said inner and outer cylindrical members.
Claim 15
Dependent Claim
20 words
A tire as claimed in claim 13 wherein the projections of the helices of adjacent web member are non- intersecting.
Claim 16
Dependent Claim
20 words
A tire as claimed in claim 13 wherein the projections of the helices of adjacent web members intersect one another.
Claim 17
Dependent Claim
35 words
A tire as claimed in any one of the preceding claims wherein each said rib member or portion thereof is inclined at an angle of from 20° to 45° to its respective intersecting radial planes.
Claim 18
Dependent Claim
49 words
A tire as claimed in any one of the preceding claims wherein said elastomeric material comprises a material selected from the group of materials comprising polyurethanes; natural rubber; polybutadienes; polyisoprenes; ethylene-propylene-non-conjugated diene terpolymers; copolymers of butadiene with acrylonitriles and with methacrylonitriles; styrenes and acrylates; and is preferably a polyurethane.
Claim 19
Dependent Claim
30 words
A tire as claimed in any one of the preceding claims wherein said elastomeric material has a Shore hardness value of from 60A to 75D, preferably from 80A to 50D.
Claim 20
Dependent Claim
52 words
A tire as claimed in any one of the preceding claims wherein said elastomeric material has a compression modulus at 0.5 shape factor and 10% compression of from 6.9 x 10 3 to 344 x 10 3 kPa, preferably from 20.7 x 10 3 to 62.1 x 10 3 k P a.
Claim 21
Dependent Claim
70 words
A tire and wheel rim assembly comprising a tire according to any one of the preceding claims, a tread carried on the outer surface of said outer cylindrical member of said tire, a wheel rim member having a generally cylindrical outer surface, and means for mounting the inner surface of said inner cylindrical member of said tire on the outer surface of said wheel rim member in non-rotative engagement therewith.
Claim 22
Dependent Claim
49 words
A tire and wheel rim assembly as claimed in claim 20 wherein said means for mounting said inner cylindrical member of said tire on said wheel rim member includes an adhesive adhering the inner surface of said inner cylindrical member to the outer surface of said wheel rim member.
Claim 23
Dependent Claim
71 words
A tire and wheel rim assembly as claimed in claim 20 or claim 21 wherein said wheel rim member has an axial length substantially equal to the axial length of said inner cylindrical member of said tire, and wherein said wheel rim member is provided with a radially outwardly directed flange at each of its axial ends, said flange being in abutment with the axial ends of said inner cylindrical member.
Claim 24
Dependent Claim
43 words
A tire and wheel rim assembly as claimed in claim 22 wherein said wheel rim member comprises first and second axial rim portions which are separable from one another, and further including fastening means for releasably locking said rim portions to one another.
Claim 25
Dependent Claim
77 words
A tire and wheel rim assembly as claimed in any one of claims 20 to 23 wherein said inner surface of said inner cylindrical member of said tire and said outer surface of said wheel rim member are each provided with axially extending, circumferentially spaced depressions and raised portions, and wherein the depressions of each of said members are engaged by the raised portions of the other of said members to inhibit relative rotation between said members.
References Cited (Backward Citations)
No citation records indexed.
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