US4060271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheelchair hold down assembly
Assignee: Individual
•
Filing: 1976-03-23
•
Granted: 1977-11-29
•
Expires: 1996-03-23
Abstract
Abstract A three point tie down arrangement, have a quick release, for restraining wheelchairs in vehicles to prevent the chair from rotating and the wheels from leaving the floor during transit, and having sufficient strength to hold the wheelchair should the vehicle overturn.
Inventors
- 👤 Joseph J. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:46
CPC Classifications
A; A61; A61G; A61G3/00; A61G3/08; A61G3/0808; B; B60; B60P; B60P7/00; B60P7/06; B60P7/08; B60P7/0807
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
211 words
A three point tie down arrangement to secure wheelchairs to a vehicle bed comprising: means securing said wheelchairs to said vehicle bed including; three eyebolts, each eyebolt attached to the bed of the vehicle by a backing plate and nut, the two front eyebolts being spaced apart a width to accommodate the width of a wheelchair, and the third eyebolt spaced rearwardly and equidistantly from each of the front two eyebolts a distance to accommodate the front to rear length of a wheelchair, link chains secured to the front eyebolts having an S-shaped hook at their respective free ends for attachment to the front side frame of the wheelchair at the juncture of the front vertical rod and lower horizontal rod of the chair, a third chain attached to the rear eyebolt, a flexible cross member adapted to extend transversely of the wheelchair beneath the seat thereof and attached to the rear side frame of the chair, an overcenter toggle chain tightener having a quick release attached to the flexible cross member and the last named chain and floating therebetween, so that pressure exerted on the fexible cross member and chain to tighten and secure the wheelchair to the bed causes the flexible cross member and chain to have a Y-shape.
Claim 2
Dependent Claim
211 words
A three point tie down arrangement to secure wheelchairs to a vehicle bed comprising: means securing said wheelchairs to said vehicle bed including; three eyebolts, each eyebolt attached to the bed of the vehicle by a backing plate and nut, the two front eyebolts being spaced apart a width to accommodate the width of a wheelchair, and the third eyebolt spaced rearwardly and equidistantly from each of the front two eyebolts a distance to accommodate the front to rear length of a wheelchair, link chains secured to the front eyebolts having an S-shaped hook at their respective free ends for attachment to the front side frame of the wheelchair at the juncture of the front vertical rod and lower horizontal rod of the chair, a third chain attached to the rear eyebolt, a flexible cross member adapted to extend transversely of the wheelchair beneath the seat thereof and attached to the rear side frame of the chair, an overcenter toggle chain tightener having a quick release attached to the flexible cross member and the last named chain and floating therebetween, so that pressure exerted on the fexible cross member and chain to tighten and secure the wheelchair to the bed causes the flexible cross member and chain to have a Y-shape.
Claim 3
Dependent Claim
43 words
A tie down arrangement as in claim 1, wherein the flexible cross member comprises a link chain having a hook at each end, said hook at each end engaging a spindle of the wheelchair upon which each of the propulsion wheels is mounted.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-28 | 1981-05-30 | 1981-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-28 | 1985-05-30 | 1985-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-28 | 1989-05-30 | 1989-11-29 | $7700.00 | Window Closed / Lapsed |