Patent US4694873A successfully refreshed from Google Patents.
US4694873A
Expired / Lapsed
US
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Vehicle wheel with run-flat support
Assignee: Continental AG
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Filing: 1986-01-10
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Granted: 1987-09-22
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Expires: 2006-01-10
Abstract
Abstract A vehicle wheel on which can be mounted a pneumatic tire, with the wheel being suitable for use during emergency operation of the tire. The tire is essentially made of rubber or rubber-like synthetic material, and has a carcass which is anchored in beads of the tire by being looped around bead cores. The inside of the tire is provided with an air-impermeable layer. The tire can also be reinforced with a belt. The wheel is provided with a rigid rim, including a rim ring, and with an emergency-operation element upon which the inner surface of the tire is supported during emergency operation of the latter. The emergency-operation element can be formed by the rim ring itself, or by a separate support element secured to the rim. In order to guarantee that emergency operation can be undertaken over a longer period of time without damaging the inner surface of the tire, at least one friction strip is disposed on the radially outer side of the emergency-operation element. This friction strip extends further radially outwardly than do any parts of the rim and emergency-operation element, so that during emergency operation of the tire, the latter is supported by the friction strip. Each friction strip is rotatably supported on the emergency-operation element.
Inventors
- 👤 Klaus Gerloff
- 👤 Dieter Ehlert
- 👤 Klaus von der Wall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:47
CPC Classifications
B; B60; B60C; B60C15/00; B60C15/02; B60C15/0206; B60C17/00; B60C17/04; B60C17/045; B60C17/10; B60C17/06; B60C2017/068; Y; Y10; Y10S; Y10S152/00; Y10S152/20
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
206 words
A vehicle wheel on which can be mounted a pneumatic tire having a tread as well as a belt below said tread, with the wheel being suitable for use during emergency operation of the tire; the tire is essentially comprised of rubber or rubber-like synthetic material, and has a carcass that is anchored in beads of the tire by being looped around bead cores; the inside of the tire is provided with an air-impermeable layer; the wheel is provided with a rigid rim that includes an emergency-operation element upon which the inner surface of the tire is supported during emergency operation of the tire; said wheel further comprises: at least one friction strip disposed on the radially outer side of said emergency-operation element; said friction strip extending further radially outwardly than do any parts of said rim and emergency-operation element, so that during emergency operation of said tire, the latter is supported by said friction strip; said friction strip being rotatably supported on said emergency-operation element; and lateral guide elements integral with said friction strip and extending in circumferential direction of said rim as well as extending over sides of said emergency-operation element in a direction angularly inwardly and away from said tread and said belt.
Claim 2
Dependent Claim
206 words
A vehicle wheel on which can be mounted a pneumatic tire having a tread as well as a belt below said tread, with the wheel being suitable for use during emergency operation of the tire; the tire is essentially comprised of rubber or rubber-like synthetic material, and has a carcass that is anchored in beads of the tire by being looped around bead cores; the inside of the tire is provided with an air-impermeable layer; the wheel is provided with a rigid rim that includes an emergency-operation element upon which the inner surface of the tire is supported during emergency operation of the tire; said wheel further comprises: at least one friction strip disposed on the radially outer side of said emergency-operation element; said friction strip extending further radially outwardly than do any parts of said rim and emergency-operation element, so that during emergency operation of said tire, the latter is supported by said friction strip; said friction strip being rotatably supported on said emergency-operation element; and lateral guide elements integral with said friction strip and extending in circumferential direction of said rim as well as extending over sides of said emergency-operation element in a direction angularly inwardly and away from said tread and said belt.
Claim 3
Dependent Claim
184 words
A vehicle wheel on which can be mounted a pneumatic tire, with the wheel being suitable for use during emergency operation of the tire; the tire is essentially comprised of rubber or rubber-like synthetic material, and has a carcass that is anchored in beads of the tire by being looped around bead cores; the inside of the tire is provided with an air-impermeable layer; the wheel is provided with a rigid rim that includes an emergency-operation element upon which the inner surface of the tire is supported during emergency operation of the tire; said wheel further comprises: at least one friction strip disposed on the radially outer side of said emergency-operation element; said friction strip extending further radially outwardly than do any parts of said rim and emergency-operation element, so that during emergency operation of said tire, the latter is supported by said friction strip; said friction strip being rotatably supported on said emergency-operation element; said emergency-operation element being provided with grooves that extend in the circumferential direction of said rim; said friction strip being provided with guide fins that extend into said grooves.
Claim 4
Dependent Claim
184 words
A vehicle wheel on which can be mounted a pneumatic tire, with the wheel being suitable for use during emergency operation of the tire; the tire is essentially comprised of rubber or rubber-like synthetic material, and has a carcass that is anchored in beads of the tire by being looped around bead cores; the inside of the tire is provided with an air-impermeable layer; the wheel is provided with a rigid rim that includes an emergency-operation element upon which the inner surface of the tire is supported during emergency operation of the tire; said wheel further comprises: at least one friction strip disposed on the radially outer side of said emergency-operation element; said friction strip extending further radially outwardly than do any parts of said rim and emergency-operation element, so that during emergency operation of said tire, the latter is supported by said friction strip; said friction strip being rotatably supported on said emergency-operation element; said emergency-operation element being provided with grooves that extend in the circumferential direction of said rim; said friction strip being provided with guide fins that extend into said grooves.
Claim 5
Dependent Claim
28 words
A vehicle wheel according to claim 2, in which said rim includes a rim ring, with said emergency-operation element being formed by a portion of said rim ring.
Claim 6
Dependent Claim
30 words
A vehicle wheel according to claim 3, in which said rim is a one-piece rim, with said tire beads being disposed on the radially inner periphery of said rim ring.
Claim 7
Dependent Claim
22 words
A vehicle wheel according to claim 4, which includes two friction strips disposed on the radially outer side of said rim ring.
Claim 8
Dependent Claim
22 words
A vehicle wheel according to claim 5, in which said rim includes a drop-center that is disposed between said two friction strips.
Claim 9
Dependent Claim
44 words
A vehicle wheel according to claim 5, in which each of said friction strips is in the form of a sliding sleeve having lateral guide elements that extend in the circumferential direction of said rim and partially extend over sides of said emergency-operation element.
Claim 10
Dependent Claim
18 words
A vehicle wheel according to claim 7, in which each of said friction strips is made of polytetrafluoroethylene.
Claim 11
Dependent Claim
21 words
A vehicle wheel according to claim 2, in which said emergency-operation element is a separate support element secured to said rim.
Claim 12
Dependent Claim
73 words
A vehicle wheel according to claim 9, in which said rim is a one-piece rim; in which said support element and said tire beads are disposed on the radially outer periphery of said rim; in which said support element has a portion which extends in the circumferential direction of said rim; and in which said rim includes a respective drop-center disposed on each side of said circumferentially extending portion of said support element.
Claim 13
Dependent Claim
21 words
A vehicle wheel according to claim 2, which includes lubricant-like slide means disposed between said friction strip and said emergency-operation element.
Claim 14
Dependent Claim
33 words
A vehicle wheel according to claim 2, in which said emergency-operation element is provided with guide means that extend in the circumferential direction of said rim for guiding sides of said friction strip.
Claim 15
Dependent Claim
33 words
A vehicle wheel according to claim 12, in which said guide means are formed by undercut regions of said emergency-operation element, with side portions of said friction strip extending into said undercut regions.
Claim 16
Dependent Claim
37 words
A vehicle wheel according to claim 2, in which said friction strip has a thickness of 2 to 8 mm extending radially outwardly beyond any part of said rim and emergency-operation element by 1 to 3 mm.
Claim 17
Dependent Claim
34 words
A vehicle wheel according to claim 2, in which said friction strip is made of a material selected from the group consisting of synthetic material, metal, and rubber in which are embedded load-carrying means.
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) | 1990-09-21 | 1991-03-23 | 1991-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-21 | 1995-03-23 | 1995-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-21 | 1999-03-23 | 1999-09-22 | $7700.00 | Window Closed / Lapsed |