US4228840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety wheel
Assignee: Honda Motor Co Ltd
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Filing: 1978-08-09
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Granted: 1980-10-21
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Expires: 1998-08-09
Abstract
Abstract A safety wheel with a rim having a tubeless tire mounted on the rim about its periphery. The rim is formed with flanges and an air chamber defined by the rim and the tubeless tire, has a bead stopper disposed within the said air chamber for gripping portions of the tubeless tire in cooperation with the flanges so to contain the bead portions against axial displacement relative to the rim. The bead stopper has a plurality of rigid circular bead stopper units flexibly connected in a radial direction to form an endless configuration with an inner peripheral surface fitted into a rim base on the rim. One of at least a pair of interconnected bead stopper units is formed at one end with a male connecting section having connecting pins, and anotjer end is formed with a female connecting section having hook-like locking concave portions. The locking concave portions and connecting pins of the female and male respectively being disengageably connected to each other.
Inventors
- 👤 Motohiro Okada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:52
CPC Classifications
B; B60; B60C; B60C15/00; B60C15/02; B60C15/028
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
274 words
A safety wheel apparatus employing, a tubeless tire mounted on a rim about the periphery thereof, said rim being formed with flange members; an air chamber defined by said rim and said tubeless tire, a bead stopper disposed within said air chamber for gripping portions of said tubeless tire in cooperation with said flange members to contain bead portions of said tire against axial displacement relative to said rim; said bead stopper being defined by a plurality of interconnected rigid circular bead stopper units, one of at least a pair of said interconnected bead stopper units being formed at one end with a male connecting section having connecting pins, and another end thereof formed with a female connecting section having hook-like locking concave portions, said locking concave portions and connecting pins of said female and male section respectively, being disengageably connected to each other, wherein: said bead stopper units are flexibly connected in a radial direction thereof so as to form an endless configuation with an inner peripheral surface thereof fitted into a rim base of said rim; said rim being further defined by an outboard section with a body portion formed by a base of narrow width and a first flange member integrally formed along an outer edge of said portion and an inboard section with a body portion formed by a base of a width greater than said body portion of said outboard section and a second flange member integrally formed along an outer edge of said inboard body portion, said outboard and inboard portions being respectively affixed to one another by bolt means to enable cooperative placement with said bead stopper.
Claim 2
Dependent Claim
274 words
A safety wheel apparatus employing, a tubeless tire mounted on a rim about the periphery thereof, said rim being formed with flange members; an air chamber defined by said rim and said tubeless tire, a bead stopper disposed within said air chamber for gripping portions of said tubeless tire in cooperation with said flange members to contain bead portions of said tire against axial displacement relative to said rim; said bead stopper being defined by a plurality of interconnected rigid circular bead stopper units, one of at least a pair of said interconnected bead stopper units being formed at one end with a male connecting section having connecting pins, and another end thereof formed with a female connecting section having hook-like locking concave portions, said locking concave portions and connecting pins of said female and male section respectively, being disengageably connected to each other, wherein: said bead stopper units are flexibly connected in a radial direction thereof so as to form an endless configuation with an inner peripheral surface thereof fitted into a rim base of said rim; said rim being further defined by an outboard section with a body portion formed by a base of narrow width and a first flange member integrally formed along an outer edge of said portion and an inboard section with a body portion formed by a base of a width greater than said body portion of said outboard section and a second flange member integrally formed along an outer edge of said inboard body portion, said outboard and inboard portions being respectively affixed to one another by bolt means to enable cooperative placement with said bead stopper.
Claim 3
Dependent Claim
54 words
A safety wheel apparatus as claimed in claim 1, wherein: said bead stopper being flexible in a radial direction so as to be within an inner periphery of said tire for disposition into said tire while being expansible, after such disposition, to an inner diameter larger than an outer periphery of said rim base.
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) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |