Patent ID: 7905846
Filing Date: 2011-03-15
Classification: A61H

Abstract:
1. A method of directly connected strip pulling for tensioning and of releasing said pulling for relaxing, the ends of a plurality of strips, wherein each one of said strips has two ends, for a bed whose support platform comprises of said plurality of strips grouped into a plurality of groups, wherein each one of said groups comprises a fractional number of said strips, with one end of each one of said plurality of strips fixedly connected to said bed, the method steps comprising: (a) attaching of the ends opposite to said fixed ends of the strips in a group, for each one of said groups, to a sturdy member, whereby the resultant number of said sturdy members is equal to the number of said groups, (b) attaching of each one of said sturdy members to a linear actuator, whereby the resultant number of said linear actuators is equal to the number of said groups, (c) connecting each one of said linear actuators to said bed, (d) operating said linear actuators in a cyclical manner wherein, wherein the linear actuator comprises a fluid cylinder utilized to tension and relax said plurality of strips: wherein the bed further comprises two pulleys as strip supports, one at each end of each strip of said plurality of strips; wherein said strip's ends are draped over each one of said pulleys to form a body support, for a body on said bed, by said strip when said strip is in tension; whereby, frictional resistance to the movement of said strip at said strip supports results in rotational movement of said pulleys, and thereby said rotational movement facilitates easier and quicker tensioning of said strip; the support platform further comprising a weight attached to the underside of each one of said strips, whereby upon relaxation of said strip, said weight will facilitate in the sagging of said strip.