Collapsible wheeled stretcher

摘要

The present invention discloses a foldable collapsible wheeled stretcher on wheels, having handles for pulling and steering. The device is provided with dependent suspensions allowing mobility in rough and bumpy terrain while maintaining the stability of stretcher surface, reducing tilt and vibration that reach the wounded person being transported upon the stretcher. It is provided with folding or telescopic means allowing it to be carried upon the back or stowed in a small volume. The device enables rescue of injured people in an improved manner from (for example) regions which are not passable by vehicles, and may be pulled by a single rescuer instead of being carried by two to four. The device may be further used to transport material.

主权项

1. A collapsible, steerable wheeled stretcher comprising:
a. a stretcher chassis comprising a largely rectangular outer frame reinforced by rigid crossmembers, said stretcher having a head end and a foot end; b. a front dependent suspension and a rear dependent suspension rotatably attached to said chassis at said head end and said foot end, respectively, wherein each of said dependent suspensions comprises an axle, connector, springs and wheels which are all arranged such that each of said suspensions allows rotational movement of said wheels around three axes, namely rotational movement around said axle, left-to-right rotational movement around a vertical axis and up-and-down rotation around a horizontal axis; c. one or more front pulling means attached to said stretcher chassis, adapted for pulling said stretcher and steering said stretcher by means of rotating said front suspension; wherein said stretcher is for transporting a person to safety over rocky terrain without substantially affecting the horizontal disposition of said chassis.