Abstract: A sliding subframe (130) mounted to the derriere-supporting section (50) of an adjustable bed (10) is adapted to translate the rotational axis (110) of the torso-supporting section (40) of the bed (10) toward the head end (12) as the torso-supporting section (40) is raised to an inclined position (44), and back toward the foot end (14) as the torso-supporting section (40) is lowered to a level position (42). This mechanism reduces compression of the lumbo-sacral area of the patient during bed articulation.

Abstract: An automatically adjustable futon frame includes a back and a seat pivotally joined to one another for folding about a transverse axis extending between opposite sides of the frame. A single motor is mounted on the seat and includes a transversely extending drive shaft on which a pair of pinions are mounted. The pinions are arranged to mate with a pair of toothed racks fixed to the opposite sides of the frame. The drive shaft may be arranged to extend through opposite side members of the seat, and ends of the drive shaft may be received in channels in the sides of the frame. A pair of link arms are provided on each side of the frame to pivotally connect the back to the sides of the frame. The motor is operable to adjust the frame between a sofa position and a bed position.

Abstract: The present invention teaches a sitting and sleeping furniture with arbitrarily adjustable inclination, comprising: a back (10), a sitting and sleeping platform (13), a plurality of back columns (2), a back column cross frame (5), and a plurality of sitting and sleeping platform frames (14), the back columns (2) is connected with the back column cross frame (5) to form back column framework, the sitting and sleeping platform frames (14) are connected with the back framework to form a sitting and sleeping platform skeleton, wherein a parallel mechanism is set at the position below the bottom of the back and above the sitting and sleeping platform (13) containing a lead screw or roundabout pulling rope (31), and a hydraulic or pneumatic cylinder or a worm controller serving to control the supporting arm; and a synchronous lifting mechanism serving to cooperate with the parallel mechanism to keep the top of the back be parallel with the bottom of the back is set on the upper side of the back (10).

Abstract: Disclosed is a convertible sofa bed including a seat frame, a back frame, a support structure, a first and second linkage assembly pivotally coupling the seat frame to the back frame pivotally coupling the seat frame to the support structure and pivotally coupling the back frame to the support structure, and an electrical drive assembly coupled to the first and second linkage assemblies. The electrical drive assembly includes a motor mounted to the support structure, a first and second cable drive rotatably coupled to and extending from the motor, first and second threaded drive screws having an external thread, and first and second right angle gear boxes mounted to first and second aft portions of the support structure. The electrical drive assembly also includes first and second drive nut assemblies mounted to respective first and second linkage assemblies and respective threaded drive screws.

Abstract: The invention relates to a safety device for furniture with at least one movable element which can be moved by a motor-driven positioning drive controlled by operating controls, particularly the head and/or foot of a base for a bed, or a seat and/or backrest element of an armchair, where the positioning of the element forms a gap in which an object or body part can become trapped as a result of the movement of the element. If a body part becomes trapped, this can lead to serious injury. Objects must also be prevented from becoming trapped, as they can cause damage to the furniture. According to the invention, at least one contact element is positioned in the gap which, when subjected to the pressure applied by an object or body part becoming trapped, closes an electric circuit which bridges a switch associated with one of the operating controls, the closing of which prevents further movement of the positioning drive.

Abstract: A futon frame includes a pair of linear actuators mounted at opposing sides thereof for driving a folding seat and back of the frame to automatically and continuously adjust the seat and back between a sofa position and a bed position. The back is connected to opposing sides of the frame by upper and lower follower bearings arranged for travel within corresponding upper and lower guide channels in each opposing side of the frame. A motor controller is mounted to the underside of the seat for connecting a user interface to the linear actuator motors.

Abstract: A futon frame includes a seat having a pair of electric motors mounted at opposing sides thereof for driving a pair of pinions arranged to engage inclined toothed racks mounted on each side of the frame for automatically and continuously adjusting the seat and a pivotally connected back between a sofa position and a bed position. The back is connected to opposing sides of the frame by upper and lower follower bearings arranged for travel within corresponding upper and lower guide channels in each opposing side of the frame. A motor controller is mounted to the underside of the seat for connecting a user interface to the motors.

Abstract: A futon frame includes a seat having a pair of electric motors mounted at opposite sides thereof for driving a pair of pinions arranged to engage inclined toothed racks mounted on each side of the frame for automatically and continuously adjusting the seat and a hingedly connected back between a sofa position and a bed position. Follower pins fixed relative to the seat are arranged to slidably engage matching guide surfaces above the toothed racks. The back is connected to opposite sides of the frame by a pair of link arms pivotal at each point of connection. A motor controller is mounted to the underside of the seat for connecting a user interface to the motors.

Abstract: An adjustable bed is provided with two frames which rotate about the longitudinal axis of the bed. The rotation is facilitated by a plurality of motors mounted on an undercarriage in which the two frames nest. The motors are controlled by a control unit, which when actuated causes raising or lowering of the nested frames relative to the undercarriage. One or both frames may be raised or lowered at the same time. A limit switch is placed on the frames which prevents the angle formed by the two frames from becoming less than ninety degrees.