| 摘要 |
A position controlling system (20) that comprises a position control means (21) combined with a support pad (33) with said control means (21) being constructed for arcuately moving the support pad (33), with the position control means (21) and pad (33) being surrounded by a cover (34) to form a portable, unitary, adjustable support assembly. In the preferred embodiment the moveable adjustable support assembly is constructed with an expandable shroud (37) integrally connected to the cover (34) in association with the position control means (21) for expanding in response to the arcuate movement of the position control means (21) while being automatically retracted into a folded configuration when the control means (21) is returned to its original position. In addition, the invention incorporates a single air flow control assembly (22) which is capable of directly controlling two distinct adjustable support assemblies, each of which uses separate control means (23). Individuals with queen or king size beds can use two distinct adjustable support assemblies (21) for separate and independent control while using a single air flow control assembly (22).
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