Stretcher suspension linkages
AssigneeHoward Wright Limited
InventorsRobert James Henderson, John Kenneth Raine
Life of this patent
Estimating the term…
Abstract
A linkage for a stretcher suspension. The linkage includes a stretcher receiving frame 17 and a base frame 23. A pair of arms 10 are pivotally fixed to bottom frame 23 and slidingly connected (12, 14) to frame 17. A pneumatic suspension unit 33 is located between the arms 10 and a first link 27 pivotally coupled between arms 10 and frame 17. A cross member 12 of the slide coupling is coupled to a sliding mount 25 of a second link 24 pivotally coupled to an arm 18 pivotally connected to the frame 17 and sliding coupled (21) to the base frame 23.
Claims27
A stretcher suspension linkage, comprising link members arranged to permit a stretcher receiving member to move relative to a mounting base, and spring means,
- said mounting base being arranged to be engageable at least in part about a wheel arch protrusion in a floor of a vehicle with which floor the mounting base is mountable, and
- the link members including a first link element coupled by a fixed pivot to one of the mounting base or stretcher receiving member and coupled by a sliding pivot to the other of the stretcher receiving member or base, a second link coupled in a reverse manner by fixed and sliding pivots to the base and stretcher receiving member, and a third link pivotally coupled between the first or second link and the stretcher receiving member.
A stretcher suspension linkage, comprising link members arranged to permit a stretcher receiving member to move relative to a mounting base, and spring means,
- said mounting base being arranged to be engageable at least in part about a wheel arch protrusion in a floor of a vehicle with which floor the mounting base is mountable, and
- the link members including a first link frame coupled to the base by a fixed pivot and coupled to the stretcher receiving member by a sliding pivot arranged to slide longitudinally of the stretcher receiving member, and a second link frame pivotally coupled to the first link frame, said second link frame being further pivotally coupled to the stretcher receiving member at a position substantially above the fixed pivot coupling of the first link frame to the mounting base, said spring means being mounted between the first and second link frames.
A stretcher suspension device for a vehicle, comprising a mounting base, a stretcher receiving member and a linkage that includes spring means,
- the linkage having link members arranged to permit the stretcher receiving member to move relative to the mounting base, said mounting base being arranged to be engageable at least in part about a wheel arch protrusion in a floor of the vehicle with which floor the mounting base is mountable.
Dependencies are inferred from the claim text.