Movable bed vehicle

Claim 2

A movable bed vehicle comprising a truck having rolling wheels with low centroid, a post erected at the longitudinal intermediate position at one side of lateral direction of said vehicle, an elevator provided adjustably at said post in such an elevationally movable manner, a bed frame having a longitudinal length at said elevator and a bed mattress and mounted directly above said truck, a normally and reversely rotatably rotational shaft provided along longitudinal direction of the bed frame and rotating by a handle in a space at the elevator side of said bed frame, a plurality of strips provided at a plurality of longitudinal positions of the shaft for towing a movable sheet on said mattress to said elevator side by normally taking up said strips, and another strips for towing the movable sheet until said elevator is extended to the opposite side from said mattress by the reverse rotation.

Claim 3

A movable bed vehicle comprising a truck having rolling wheels with low centroid, a post erected at the longitudinal intermediate position at one side of lateral direction of said vehicle, an elevator provided adjustably at said post in such an elevationally movable manner, a bed frame having a longitudinal length at said elevator and a bed mattress and mounted directly above said truck in such a manner that said elevator is intruded into the inside of said frame, thereby forming a space at the elevator side of said bed frame, a normally and reversely rotatably rotational shaft provided along longitudinal direction of the bed frame and rotating by a handle in the space, a plurality of strips provided longitudinally of said frame and secured to said sheet capable of towing a movable sheet on said mattress to said elevator side by normally taking up said strips at strip takeup rolls provided at a plurality of positions longitudinally of said rotational shaft, another strips provided on said strip takeup rolls, secured to the movable sheet and wound with the strips engaged with a strip bobbins provided at the opposite side to said elevator of said bed frame and arranged at the lower position of said bed mattress to enable to tow the movable sheet until said elevator is extended to the opposite side from said mattress by the reverse rotation, and auxiliary retainers provided in the space for covering the rotational shaft.

Claim 4

A movable bed vehicle comprising a truck having rolling wheels with low centroid, a post erected at the longitudinal intermediate position at one side of lateral direction of said vehicle, an elevator provided adjustably at said post in such an elevationally movable manner, a bed frame having a longitudinal length at said elevator and a bed mattress and mounted directly above said truck in such a manner that said elevator is intruded into the inside of said frame, thereby forming a space at the elevator side of said bed frame, a normally and reversely rotatably rotational shaft provided along longitudinal direction of the bed frame and rotating by a handle in the space, a plurality of strips provided longitudinally of said frame and secured to said sheet capable of towing a movable sheet on said mattress to said elevator side by normally taking up said strips at strip takeup rolls provided at a plurality of positions longitudinally of said rotational shaft, another strips provided on said strip takeup rolls, secured to the movable sheet and wound with the strips engaged with a strip bobbins provided at the opposite side to said elevator of said bed frame and arranged at the lower position of said bed mattress to enable to tow the movable sheet until said elevator is extended to the opposite side from said mattress by the reverse rotation, and auxiliary retainers provided in the space for covering the rotational shaft.