Bed for sick person

Claim 2

Bed for sick and disabled persons comprising a plurality of juxtaposed rollers, and endless belt (17) surrounding said plurality of rollers and being movable to and fro in the transverse direction of the bed and a mattress (27) mounted on said endless belt (17), said plurality of rollers including first rollers (11,16), arranged along the longitudinal borders of the bed and second rollers (12,15) arranged between said first rollers (11,16) and the center line of the bed, at least one of said second rollers (12,15) being liftable on both sides of the bed to such a height that the sick person can be turned from the supine position into one side position and said first rollers (11,16) being shiftable in such a way that they (11,16) are shifted perforce, during the lifting and lowering of such second rollers (12, 15), in the direction toward the center line of the bed and back toward the outside.

Claim 3

Bed for sick and disabled persons according to claim 1 having a bed frame including a head part (1) swivelling about an articulating axis (4), wherein said plurality of rollers consists of several rows of juxtaposed, freely rotatable rollers (11-16) which latter are supported at mutual spacings along the bed frame by a supporting means (6-10) which has at least two longitudinal members (6,7) stretched alongside the bed frame, said longitudinal members being articulate or flexible at least in the zone of the articulating axis (4) of the heat part (1) of the bed frame; and said endless belt (17), surrounding said several rows of rollers (11-16) being drivable in both revolving directions.

Claim 4

Bed for sick and disabled persons according to claim 2, wherein the endless belt (17) is attached along both of its rims to respectively one endless pulling means (18,19) arranged at the head and foot ends (1,3) of the bed frame, these pulling means being drivable synchronously in both revolving directions; and that the tensioning directions of the longitudinal members (6,7) of the supporting means (6-10) extend between the upper and lower runs of the endless pulling means (18,19) through these runs.

Claim 5

Bed for sick and disabled persons according to claim 2, wherein the supporting means (6-10) for respectively two successive rows of rollers comprises a traverse (8,9,10) attached to the longitudinal members (6,7) and carrying longitudinal axles (31-34) each supporting a roller pair (11-16); that the axles (32) of the liftable second rollers (12,15) are mounted each on the free end of a lever (37) pivotably articulated to the traverse (8), a first pulley cable (42), a second pulley cable (45), and the levers (37) carrying second roller pairs lying in series on one side of the bed are pivotable upwardly by means of said first pulley cable (42), and the levers carrying second roller pairs lying in series on the other side of the bed are pivotable upwardly by means of said second pulley cable (45).

Claim 6

Bed for sick and disabled persons according to claim 4, wherein the axles (31) of the first roller pairs (11,16) are supported to be laterally displaceable at the traverses (8,9,10) in such a way that the first roller pairs (11,16), during pivoting of the second roller pairs (12,15) supported by the levers (37), are shifted in the direction of the traverse (8,9,10) so that the circumference of the endless belt (17) remains constant.

Claim 7

Bed for sick and disabled persons according to claim 5, wherein each tranverse (8, 9, 10) consists of a central section (35) attached to the longitudinal members (6,7) of the supporting means (6-10) and two outer sections (36) arranged displaceably at the central section (35) wherein each of the pivotable levers (37) is articulated to the central traverse section (35); that respectively one coupling member (38) is articulated with one of its ends to the pivotable lever (37) and with its other end to the displaceable outer section (36) of the traverse (8); and that the first and second pulley cables (42,45) engage the outer, displaceable traverse sections (36) and are guided (43) at the central sections (35) so that when the pulley cables are pulled, the outer sections (36) of the traverses (8,9,10) are shifted toward the center (35), whereby the coupling members (38) push the pivotable levers (37) in the upward direction.

Claim 8

Bed for sick and disabled persons according to claim 3, wherein the pulling means are endless chains (18,19) or toothed belts which are guided so that they are secured (52,54,55) against twisting and displacements at right angles to the revolving plane, connecting elements (50) projecting therefrom, by means of which a detachable connection is established with eyes (53) or counter elements attached to the rims of the endless belt (17).

Claim 9

Bed for sick and disabled persons according to claim 7, including two drive motors (25,26), a common control device (24), and the two endless chains (18,19) or toothed belts are drivable synchronously by the two drive motors (25,26) regulated by a common control device (24).

Claim 10

Bed for sick and disabled persons according to claim 2, a foot part (3) included in said bed frame, wherein the longitudinal members of the supporting means (6-10) are chains (6,7) attached to the head part and foot part (1,3) of the bed frame, wherein the attachment is releasable at least on one end.

Claim 11

Bed for sick and disabled persons according to claim 2, including two rims on the endless belt (17), said mattress fashioned as an endless cover (27), and said endless cover having two cover rims which are joined to the two rims of the endless belt (17) in a releasable fashion.

Claim 12

Bed for sick and disabled persons according to claim 1, wherein the first and second rollers 11-16) having jackets which consist of a soft-elastic material.

Claim 13

Bed for sick and disabled persons comprising an endless belt (17), and a mattress (27) mounted on said endless belt, movable to and fro in the transverse direction of the bed, lifting means (12,15) surrounded by said endless belt (17), for lifting a part of said belt and, said mattress (27) mounted thereon, said endless belt having end rims, endless pulling means (18,19) connected at the head and foot ends (1,3) of the bed, said endless belt (17) being attached along both of its rims to respectively one of said endless pulling means (18,19), said endless pulling means being drivable synchronously in both revolving directions, and said lifting means (12,15) being arranged between the longitudinal borders of the bed and the center line of the bed and being liftable to such a height that the sick person can be turned from the supine position into one side position.

Claim 14

Bed for sick and disabled persons comprising an endless belt (17), and a mattress (27) mounted on said endless belt, movable to and fro in the transverse direction of the bed, lifting means (12,15) surrounded by said endless belt (17), for lifting a part of said belt and, said mattress (27) mounted thereon, said endless belt having end rims, endless pulling means (18,19) connected at the head and foot ends (1,3) of the bed, said endless belt (17) being attached along both of its rims to respectively one of said endless pulling means (18,19), said endless pulling means being drivable synchronously in both revolving directions, and said lifting means (12,15) being arranged between the longitudinal borders of the bed and the center line of the bed and being liftable to such a height that the sick person can be turned from the supine position into one side position.