Improved hospital bed consisting of a lower rolling frame (2), a medium or scissors frame (3), an upper or bed frame (31), a lifting and lowering system (4) of the upper frame ( 3 "''), an articulated bed (5), headboard retractable (6), foot (7), side rails (8) also retractable and an auxiliary table (9) retractable, characterized because it incorporates: - a system of depression of the side railings (8) constituted by a bushing (12) mounted with displaceable character on the lower horizontal arm (13) of the handrail (s), which is arranged transversely a rod associated with a spring that is finished off a driving knob and whose internal end impinges on a blind hole provided for that purpose in said horizontal arm (13) determining the blocking means of the railing (8) in the unfolded position, between the locking bushing (12) and the vertical arm (11) more pr maximum the footboard, is mounted a plate line (14) which at its ends is articulated respective lugs provided for this purpose on the cap and in said vertical arm. - a leveling system materialized in two symmetrical mechanisms (17) with respect to the longitudinal axis of the bed (1), which joins the frame of the lifting mechanisms with the frame of the bed, mechanisms structured on the basis of a quadrangular piece (19) ) by an emergent part of the tubular frame (18) of the frame of the bed (1) and on the other hand provided with an opening (20) where a pin (21) plays vertically with its corresponding cap (22) of rotation integral with the rest of the assembly, pin (21) that joins the fixed plate (23) of the frame of the lifting mechanisms, with the stop piece (24) housed inside the quadrangular piece (19), being thereafter the plate (23) a washer (28) of plastic nature that absorbs the friction between such plate (23) and the quadrangular piece (19), the stop piece (24) is internally threaded through a screw (25) equipped with top (26) and bottom (27) nuts, whose turn det it definitively eliminates the vertical displacement of the bed frame assembly. - a bed tilting mechanism based on the classic toothed rack (61), properly fixed to the scissors frame (3), on which plays an axis (62), provided on both sides of the teeth line of two wheels nylon (63) cushioning shock, shaft (62) that closes the end of the elbow piece (64) that ends in two parallel branches (65), both branches (65) being joined in the middle of the piece (64) by an arm (66), to then articulate to a transverse arm (67) of the bed frame (3 "'') by means of respective lugs (68) and the corresponding axis (69), where a of the parallel queens (65) the other branch (65) continues, forming the bent area of the piece (64), to end at its end where it receives a spring (70) duly fixed by an elbow piece to the transverse arm (65). 67), and a plate (71) to whose free end the lever (72) joins, which in its transverse section is sheathed by a tu bo protector, and in its final and longitudinal section ends in the corresponding handle (73). - a metallic support structure of the different areas that make up the bed (5) of the hospital bed (1), composed of pieces (29), four of larger dimension and two of smaller dimension, endowed in its lower area with four lugs (30) that fit perfectly in the corresponding housings (31) enabled for this purpose in the structures of the different stretches of the bed. - a headboard system (6), provided with a metallic internal structure (33) to which the retraction system that allows the exterior placement of trims (34), and being structured on the basis of two bars (35) is joined to which the metal frame-shell assembly (36) of the bed is fixed with the help of fastening means, said bars being inserted in respective tubular supports (38) provided with appendixes (39) that allow the fastening of the system in the bed frame; the system incorporates a horizontal control rod (40) that joins two retaining latches (41) of the head (6) in the raised position. - a footing system (7), provided with a metallic internal structure (42) that allows the exterior placement of trims (43) of different designs, to which a retractable table (44) of any configuration is fixed in an auxiliary way, fixed in a hinged manner to the aforementioned internal metallic structure (42) of the foot part (7) in two points (46), and to which a gas spring (47) is associated, connected and hinged at one end to an approximately central area (48) of the table, and on the other hand in an area (49) located in the lower area of the central bar (50) of the internal metallic structure (42), between the folding table (44) and the decorative cover (43). ), a panel (45) being installed between the folding table (44) and the decorative cover (43) which, in addition to its proper embellishing function, allows it to be practically inserted into the table during the depressed position of the table (44). Ceiling (45), hiding. - a system for lifting the backrest legs and legs of the bed (5) of the hospital bed (1), whose leg section has the classic crank pair system (74, 75) on both sides of the bed (5), to which joint a third connecting rod (76) connected to the last sector of the bed (5) and extensible by means of a toothed section on which the corresponding pivot plays, having modified the usual point of attachment of the connecting rod (74) up to an intermediate fold area (51), located on the corresponding longitudinal strips (82), to achieve a greater comfort of the patient, while the rod (75) is attached to a rotation shaft (77) equipped with a pair of curved rods (78) where the drive is produced by the corresponding motor (79), and whose backrest section is constituted by a main rod (52) joined at one end to the transverse axis (53) passing through the bed of the bed (1), and on the other, after an acod finalization to the free end (55) of another rod (54) that at its other end ends approximately in the middle zone of that elevable sector of the bed; in the lower area of this lifting sector another straight rod (56) is arranged, joined at its other end to a point (57) of the bed frame, finally having the system of a curved connecting rod (58), by a joined end to a fixed point of rotation (59) and on the other to the free end of a prolongation of few dimensions (60) that has been welded in the joining zone of the two sectors that intervene in that area of the articulated bed, and - a system for raising and lowering the bed (5) of the hospital bed (1), composed of the classic scissors (84), which runs on guides (86) with the help of the corresponding wheels (87) and operated by a motor (85) ), motor (85) which is fixed at its base to the lug (88) of a support (89) materialized in the form of a transverse plate of the rolling frame (2) and provided with a lower reinforcement (89 "'') as a low profile projection with a rectangular profile, the motor rod (85) connects to the two parallel connecting rods (9) 2) prolongation of the major branch (91) of a piece of two elbowed branches (90) that joins both scissors (84). (Machine-translation by Google Translate, not legally binding)