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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
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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)

US1716316A Cited
US1835840A Cited
US1934697A Cited
US1973624A Cited
US2539997A Cited
US2713891A Cited
US3071348A Cited
US3614043A Cited
US3955847A Cited

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

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