Abstract: A device for reciprocating a bed or cradle on supporting rods has a driving pulley (1) on a rotational first axle (50) of a driving motor (M) and a first decelerating pulley (2) on a second axle (23). The first decelerating pulley is connected to the driving pulley (1) by a first belt (7A). A first small pulley (3) on the second axle (9A) is connected to a second decelerating pulley (4) on a third axle (9B) by a second belt (7B). A second small pulley (5) on the third axle (9B) is connected to a third decelerating pulley (6) on a driving axle (8) by a third belt (7C). A disk (11) axially on the driving axle (8) has an eccentric axle (12) thereon. An idle cap (13) on the eccentric axle (12) for rotation has springs (14 and 14a) on opposite sides thereof. Supporting rods (16) are respectively connected to the springs (14 and 14a) for being moved back and forth or from side to side by tension of the springs (14 and 14a) as the rotational disk (11) is rotating.

Abstract: An assembly for vibrating a bed system, such as a box spring mattress. The assembly includes a clip system, a vibrating device with a housing that has several slots to engaging a lattice wire inside a box spring mattress as well as the clip system. The clip system is used to secure the vibrating device to the box spring mattress. The clip system includes a tension portion that has a mounting portion to engage the slots of the vibrating device and an indentation portion, extending from the mounting portion, to engage the other slots of the vibrating device. The clip system is secured to the box spring mattress with locking ties. Alternatively, the clip assembly includes a support clip for engaging the lattice wire and the slots of the vibrating device, instead of the slots directly engaging the lattice wire.

Abstract: An infant environmental transition system provides an infant with controlled simulated movements encountered by an infant in an intrauterine environment. The system includes a suspension system having a plurality of flexures coupled between a base plate and a moving mattress platform. A cam shaft assembly includes a groove that engages a linear follower connected to the moving platform so that the follower moves along the groove while the cam shaft assembly rotates to move the linear follower, and thereby reciprocate the moving mattress platform in a longitudinal direction. Alternatively, a rotating crank assembly translates crank rotation to reciprocating movement of the mattress platform.

Abstract: A motion controlled cradle including a rocking assembly adapted to rock the cradle upon the receipt of an activation signal. Further provided is an motion sensor adapted to transmit a motion signal upon the detection of motion of the small child within the cradle. Next provided is a mechanism for transmitting an activation signal to the rocking assembly upon the receipt of the motion signal. Finally, a tape player is connected to the means. The tape player is adapted to play a tape upon the receipt of the activation signal.

Abstract: A method and apparatus is disclosed for periodically and rhythmically lifting one hip of a seated person and then the other, thereby simulating the muscle stimulation and relaxation imparted to a person by walking. A rotatable support panel is provided for alternately lifting and moving backward and forward each hip of a seated person.

Abstract: An apparatus for inducing relaxation or sleep in infants including a base, a platform mounted on the base such that the platform is movable with at least three degrees of freedom of motion relative to the base, a child retainer provided on the platform, a device for moving the platform in the at least three degrees of freedom of motion and a driving source for driving the device for moving the platform in the at least three degrees of freedom of motion.

Abstract: A power supervised emergency warning device provides a shaking motion to a piece of furniture coupled thereto upon receipt of an electronic actuating signal from an external closed contact type device. A backup battery provides power to the device in the case of a main power outage. External warning devices may be coupled to the device which are activated upon receipt by the device of the actuating signal. Additional external device hook-ups are provided as well as the ability to be coupled to auxiliary modules. The auxiliary modules accept actuating signals from additional external closed contact type devices to produce shaking. Additional indication devices may also be coupled thereto. Additional auxiliary modules may also be chained thereto.

Abstract: An infant entertainment device having a molded plastic receptacle which receives a portable seat or layette, the device rotating a baby carried by the seat at a rate of about one rpm relative to a stationary base member. Optionally, the carousel may be equipped with a cam on the stationary base and a cam-riding rod which engages and rocks the removable seat relative to the molded carrier as the upper portion rotates relative to the stationary base. Music is provided by a microchip, for example, or at the option of the operator, the carousel may be operated without music. A toddler carousel may be formed by providing the rotational base member with a mountable seat such as a pony. Preferably, the pony is mounted in the center of the carousel and can be rocked by the toddler. Alternatively, the pony may be mounted adjacent the periphery of the carousel to provide the toddler with a more conventional carousel-type ride.

Abstract: A cradle comprises a support frame and a base. The support frame is intended to hold an infant and is provided at one end thereof with a retaining hook. The base is provided with a plurality of castors fastened pivotally therewith and is further provided with an actuating, box comprising an elastic cord which is provided at the top thereof with a plurality of engaging rings engageable with the retaining hook of the support frame. The actuating box is provided therein with a motor, a disk with a cam fastened therewith, and a swing arm provided with an eccentric wheel having a groove engageable with the bottom end of the elastic cord. The swing arm is further provided with a rotor engageable with the cam. The eccentric wheel is actuated by the cam which is in turn actuated by the motor. The elastic cord is pulled downwards by the eccentric wheel in motion so as to cause the cradle to swing downwards.

Abstract: A base unit for supporting an infant carrier seat comprising a housing member having a bottom curved surface for rocking on a generally flat support surface, an upper central portion on which an infant carrier seat is removably mountable, an endless pathway that circumscribes said central portion, a weight and a motor to move along the weight in a closed loop at a selected predetermined rate of travel. The weight in the preferred form is a toy train unit with open topped box cars that removably hold a supply of weights. A sound generator on the train provides music and/or train whistle simulation. An infant can be entertained by the train travelling around the infant, by sounds generated by the train and the infant is rocked, all at the same time. The motion of the train travelling around the infant can be used to check responses of the infant as can also the movement of sound relative to the infant.

Abstract: A piece of furniture has a frame and a part capable of rocking on the frame at a natural rocking frequency. A drive has a sensor for detecting movement of the part on the frame, a drive motor connected between the frame and the part for rocking the part on the frame, and a controller connected between the drive and sensor for rocking the part on the frame at the natural rocking frequency up to a predetermined maximum angular displacement of the part on the frame. The sensor detects angular movement, that is angular speed, angular position, and/or angular acceleration of the part on the frame. The controller has a response field and operates the drive in accordance therewith.

Abstract: A shaker for cots, strollers and baby carriages has a clamping unit, a reciprocating unit, a crank unit and a power unit. The clamping unit connects the reciprocating unit via a lever. The reciprocating unit has a reciprocating rod and a rod sleeve. The rear portion of the reciprocating rod is positioned in the rod sleeve adjustably. The crank unit has a front link which connects the rod sleeve and a rear link which connects a motor.

Abstract: An electric cradle including a crib, a main support disposed under the crib to support the crib and two swinging frames pivotally connecting the main support with two ends of the crib. A swinging mechanism is used to swing the swinging frames so as to swingingly drive the crib to form an electric cradle. The two swinging frames can be alternatively removed from the crib and the length of the main support can be adjusted in order to permit direct securing of the two ends of the crib to the main support. In addition, the height of the side fences of the cribs can be adjusted to meet the standing height of an infant, whereby the electric cradle can be transformed into a fixed crib.

Abstract: A multi-directional rocking crib, having a base which pivots about a pivot member, a first member operatively associated with the pivot and a second member having at least one arm with a weight at the end thereof extending transversely to and connected with the first member, a motor to rotate the arm with the weight at the end thereof for tilting of the base or movement of the base as the first member rotates relative to the pivot to provide an undulating movement of the edge of each side of the base as the pivot rotates to move the base into and out of the different planes.

Abstract: A twist rolling bed, adapted for health care for use in a hospital, home, health club, etc, comprises a stationary bed frame longitudinally inclined by an inclining device having a support assembly thereon to roll a mattress support assembly, a saddle assembly providing a center support for the mattress support assembly, and a vibrating system with a motor to reciprocate the mattress support assembly which is has a motor crank assembly, a connecting rod assembly. The mattress support assembly is torsionally flexible and comprises of a plurality of pipes on a plane whose ends are rotatably, pivotally, and slidably inserted into holes on a central line of two rectangular bars. The pipes ride on the saddle assembly, whereas the two rectangular bars are carried by the support assembly. Alternatively, the mattress support assembly described above could be replaced by a rigid assembly.

Abstract: A mechanism for rocking a chair includes a frame disposed on a base and having a pair of racks, four wheels secured to the chair and engaged with the racks of the frame, a motor disposed on the base, a crank secured to the motor, and a lever having one end coupled to the crank and the other end coupled to the chair, the chair is driven to move in a rocking manner by the motor.

Abstract: Disclosed is a multi-purpose baby rocking chair which has a rocking mechanism powered by a DC motor. The rocking mechanism includes a rotary arm which is driven by the motor to turn upward and downward, causing the seat of the baby rocking chair connected to the rocking mechanism to swing up and down in a vertically reciprocating movement. The baby rocking chair can also be conveniently converted into a handcart.

Abstract: A convertible rocking cradle is equipped with a mounting base and a cradle body that can be locked together or unlocked so as to permit the cradle body to be reciprocally rocked in the longitudinal direction by way of a motor; or the cradle body secured to the mounting base can be pushed all around. Each corner of the mounting base is disposed a wheel or castor so that it can be movable. On each longitudinal side of the mounting base is provided with a vertical F-shaped slide track which is engaged with the rollers disposed on the corresponding side of the cradle body. A motor with a gear mounted onto the shaft thereof is secured to the underside of the cradle body. A rack longitudinally disposed at the middle of the mounting base is in mesh with the gear driven by the motor so that the cradle body can be driven therealong. A limit switch located at 1/3 position from each end of the rack is used to make the motor reversely rotated so that the cradle can be reciprocally rocked in the longitudinal direction.

Abstract: An apparatus for supporting and rocking a wheel chair has a support platform with at least one wheel-securing opening. There is a first ramp leading to the support platform and a filler platform adapted to fit in the wheel-securing opening. The apparatus also has a lifting mechanism for moving the support platform and filler platform relative to each other so that the support platform moves between a rocking position above the filler platform and a lowered, loading position in which the filler platform fits in the wheel-securing opening.

Abstract: A multi-tilting movement platform that periodically and gradually tilts a platform supporting a person's body, that platform tilting periodically and gradually, side to side and head to foot; the side tilt following the head tilt and preceding the foot tilt, and so on. The apparatus enables a user to experience sensations which have been reported as relaxing, stress relieving and beneficial. The apparatus comprises a base, a platform for holding a human body thereon, an elongated teeter-totter board pivotally mounted upon the base, a drive shaft upon which is mounted a tilted plate. Low frictional rollers support the platform on the tilted plate with the platform also being pivotally supported on a first pivot axis on the teeter-totter board with the teeter-totter board being mounted on a second pivot axis on the base. The first pivot axis is oriented perpendicular to the second pivot axis.

Abstract: An automated swing includes a support frame assembly and a swinging frame assembly pivotally mounted to the support frame assembly. A seat is carried by the swinging frame assembly, and a swinging drive mechanism is interposed between the support frame assembly and the swinging frame assembly. The swinging drive mechanism includes a pair of resilient belts. Each belt is driven by an elliptical pulley mounted to a rotating drive shaft, with each belt being engageable with the swinging frame assembly. Upon rotation of the elliptical pulleys in response to rotation of the drive shaft, the belts pull the swinging frame assembly in one direction, with tension being introduced into the belts. Continued rotation of the elliptical pulleys releases tension in the belts, to allow the swinging frame assembly to swing in the other direction. The resiliency of the belts provides smooth transition between forward and rearward movement of the swinging frame assembly, to provide a smooth and comfortable swinging motion.

Abstract: A crib assembly includes a rocking assembly which rocks the crib mattress either up and down in a vertical plane or side to side in a horizontal plane. The rocking assembly can be either manually activated or automatically activated if the child cries out. The rocking assembly will shut off after a preset time interval, but can be reactivated if the child is still crying at the end of that preset interval. However, if the rocking assembly is reactivated, an alarm circuit is activated by the second activation of the rocking assembly, and this alarm circuit will alert an adult that one rocking cycle was unsuccessful in helping the child to return to sleep.

Abstract: A perambulator rocking unit suitable for use in carrying out rocking of a perambulator of any type, including a push chair, stroller, or full sized perambulator, is provided. The rocking unit comprises a cradle support for at least one wheel, but preferably two, cradle supports for two laterally spaced, axially aligned wheels, of a perambulator, the cradle supports in turn being carried by a body supported by support rockers engaging the floor. A rocking mechanism is provided wherein a weight is cyclically moved from side to side across the center of gravity of the rocker unit to effect rocking thereof to and fro, with consequent rocking of a perambulator partially supported thereon.

Abstract: A baby crib having an automatic swinging apparatus includes a bed frame assembly supported on a base platform by flexible straps. The crib has an electric motor for swinging the rocker. Swinging reversal forces are reacted smoothly by tension springs which alternately store and release energy during each swing cycle so that the momentum of the swinging crib is overcome at each reversal of swinging movement.

Abstract: A baby crib comprising two symmetrical side frames and two grilles transversely connected between said two symmetrical side frames at two opposite ends. The bed floor members each have an axle at one end and positioning bolts at the opposite end for positioning bed floor members into circular recesses and positioning holes according to the desired angle of inclination. Sound detectors and humidity sensors are provided to detect discomfort situations and thus trigger alarms and/or comforting devices.

Abstract: A swinging assembly for cribs comprises a crib with two opposite inner frames at its two opposite sides, two outer frames matching the two inner frames, two lateral braces supporting the inner frames, an electrical apparatus, and a magnetic device. A switching apparatus is disposed between the lateral brace and the outer frame. The electrical apparatus is installed in a lower interior of the lateral brace. The electrical apparatus has a silicon controlled rectifier, two diodes and a transformer. A non-magnetic partition separates the electrical apparatus and the magnetic device. The magnetic device has two permanent magnets which are positioned by a securing seat. The securing seat is positioned by a corrugated plate which is disposed under the crib.

Abstract: A bed for preventing snoring includes a support; a mattress base tiltably secured to the support so as to provide for tilting motions of the mattress base about a longitudinal pivotal axis thereof; a drive for imparting a tilting motion to the mattress base out of and into a horizontal position; a load-sensitive switch operatively connected with the mattress base and the drive for tilting the mattress base out of the horizontal position in a direction opposite to a torque imparted by a load to the mattress base and limit switches operatively connected to the drive and cooperating with the mattress base for deenergizing the drive when the mattress base attains a predetermined tilted position during tilting motion from the horizontal position or when the mattress base attains the horizontal position during tilting motion from a tilted position.

Abstract: A bed for immobile patients includes a height-adjustable bed frame mounted on a sub-structure provided with at least two spaced apart and connected with one another pivotable sectors driven by a flexible element passing through a plurality of rollers and fixed to extremeties of at least one sector and with a rail having a form of an arcuate of U-shaped depression running along at least one side of each sector and receiving guiding elements rotatably mounted on stands juxtaposed with the sectors.

Abstract: A device for attachment to a crib comprises a housing and a motor having an eccentric weight mounted on a shaft driven by the motor so as to produce vibrations upon actuation of the motor. The frequency of the vibrations is within the range of 800-2000 vibrations per minute. The device has sound generating means including volume and frequency control means. The device includes vibration attenuating means for attachment to the lower ends and at least an upper end of the crib for attenuation of the vibrations that would be transmitted to the floor supporting the lower ends of the crib and the walls that could be contacting at least an upper end of the crib.

Abstract: A device for imparting multi-directional rocking motion comprising a housing, a drive mechanism supported by the housing for providing reciprocating motion to an arm extending through a wall thereof, and an adjustable orientation attachment clamp for attaching the housing to a component arranged for rocking motion in relation to a surface, the housing being attached so as to direct the arm for contact with the surface during its reciprocating motion, the rocking motion being imparted to the component in accordance with the arm direction.

Abstract: An improved infant carrier seat rocker is provided for a typical molded plastic type infant carrier seat embodying a rounded bottom to facilitate a fore and aft rocking motion. This type of seat is currently in production. The rocker is comprised of a housing from which a lifting member protrudes. A power unit is mounted within the housing. This power unit provides rotational energy. A drive means consisting of an eccentric mounted to the output of the drive unit and slidably connected to the lifting member to convert rotational energy to vertically reciprocating motion is employed to impart the vertical motion to the lifting member. The lifting member in turn imparts this motion to a suitable feature of the carrier seat, typically the lower edge of the seat, and the seat then rocks as the lifting member oscillates vertically.

Abstract: A bi-motional cradle has a base with rollers affixed along each of two sides. A motor mounted on the base drives a crank arm which imparts to and fro translational motion to a cradle frame which rests upon the rollers of the base. A mediate frame member which lies within the cradle frame supports a second motor. The second motor has a crank arm rotably attached thereto. A cradle is suspended from the cradle frame by means which allow the cradle to hang freely and oscillate. The second motor's crank arm engages the cradle during a part of that crank arm's rotational motion. As the second motor's crank arm engages the cradle, it imparts a motion to the cradle that causes the cradle to swing, or oscillate. A baby lying in the cradle is soothed by a gentle, steady, two-directional motion.

Abstract: A device for imparting a pat to the underside of an infant crib for helping to soothe or induce sleep in a baby or child. The device includes a frame which sits on the floor beneath the crib. The frame includes a reciprocating means which is attached to the frame and a "T" bar structure which has a horizontal member with two ends that have apertures therein and a vertical member attached to the horizontal member midway between the two ends. A pair of elongated vertical rods are adjustably attached to each end of the horizontal member by wing nuts. Attached to the top of the vertical rod is a resilient cup-like structure that contacts the underside of mattress when the device is electrically connected to a power source.

Abstract: A kinetic therapeutic table 10 having a frame 12, a planar patient support 14 mounted to the frame 12 for rotation about an elongate axis substantially aligned therewith and adjustable vertically at its foot 20 and head 18 ends. A patient support 14 drive motor 28 provides rotary drive to the patient support 14 through a worm gear 40 locked to a gear linkage, so that it may be stopped and held by the worm gear 40 in any angular position by switching power off to the motor 28. The worm gear 40 is manually disengageable from the remainder of the gear linkage to enable manual movement of the patient support 14 to a horizontal position. A locking pin 76 is automatically biased against a drive ring 22 and springs into a pin hole 78 therein when the horizontal position is reached. The patient support 14 is mounted at one end of its pivot axis to the frame 12 by a ball 19 and socket 21 connection.

Abstract: An improved rocker for an infant seat comprising in combination a base having upstanding lateral side walls defining an opening therebetween; an intermediate platform positioned within the opening and having an upper region adapted to receive an infant seat thereon; a pair of generally U-shaped links each having upper portions supported by the side walls, each having a lower horizontal portion adapted to receive a lower region of the platform thereon, and each having intermediate vertical portions coupling the upper and lower portions; drive means coupling the platform and the base for inducing a rocking motion to the platform; adjustment means to longitudinally vary the center of oscillation of the rocking platform; and locking means to lock the platform with respect to the base.

Abstract: The risk of disturbance from children's cries is reduced if the child is subjected to mechanical vibration. This is applied to the child's place of rest by the use of a motor with imbalance. The environmental inconvenience caused by the children's cry is eliminated usually by a vibration frequency which is disturbing in itself but which is attenuated in a known way at the place of rest's contacts with the surroundings. An automatic device for starting when the child cries can be applied.

Abstract: A power rocked cradle with timed control and supplemental music. The cradle is rocked by a motor through a crank and linkage.

Abstract: A compact, portable rocking device for baby carriages and the like including a box-like housing arranged to be attached to a wall of the carriage; a circular, horizontally disposed plate disposed in the housing, an integral arm extending outwardly horizontally from the plate; a weight disposed on the arm; a miniature DC motor mounted in the housing coupled via transmission apparatus to the plate for rotation thereof; a switch for actuating and stopping the motor; and electronic apparatus for automatically activating the switch.

Abstract: A kinetic therapeutic table 10 having a frame 12, a planar patient support 14 mounted to the frame 12 for rotation about an elongate axis substantially aligned therewith and adjustable vertically at its foot 20 and head 18 ends. Symmetrical lateral support packs 114 at opposite sides of the patient's torso have laterally offset mountings for adjustment of the width therebetween by reversing their locations. Outer lateral leg supports 110 are mounted to the frame 12 and have a track 184 at their top surface for slideable mounting of both knee restraints 182 and foot supports 202 at selected positions therealong. The patient support 14 comprises a planar frame with a plurality of panels 88 removably mounted thereto by means of pins 96 actuated by a lever arm 100. A patient support 14 drive motor 28 provides rotary drive to the patient support 14 through a worm gear 40 locked to a gear linkage, so that it may be stopped and held by the worm gear 40 in any angular position by switching power off to the motor 28.

Abstract: The Rock 'N Walker is a device which automatically turns the wheels of a baby carriage or hospital infant bed, and can be built to fit under the front (or rear) wheels of any size axle or wheel base. It can be made of heavy duty, non-brittle plastic, fiberglass, or wood; however, the rod and bolts on which the rollers turn should be made of metal for durability.

Abstract: A perambulator is rocked by two halves of a portable case which are hollow on one side and have surfaces configured on the other side to impart a rocking motion to the perambulator moving thereover when the halves are disposed in a flat open position. The halves are foldable together to form the portable case.

Abstract: Apparatus for rocking a baby holding device having four legs supporting same on the floor, comprises a roller for supporting each leg so as to be rollable over the floor, and a rocker device including a base adapted to be non-rotatably supported on the floor, a holder rollably supported on the base and adapted to receive its respective leg of the baby holding device, and an electrical motor for rocking the holder with respect to said base. The rocker device further includes a tape recorder for playing music or the like during the operation of the rocking device.

Abstract: A rocking chair having a seat and a base member, the seat including a seat member for directly supporting a person and a frame having first and second frame members, each of which frame members have a rocker portion disposed beneath the seat member and a vertical portion interconnecting the rocker portion and the seat member, the rocker portion of each frame member being curved for a substantial portion of its length and supported for rocking movement within the base member, a rear most portion of each rocker portion being angled upwardly, the frame members being constructed of a resilient material so that rocking motion of the seat causes a dampened spring motion of the seat during rocking of the chair.

Abstract: Disclosed is an apparatus for imparting motion to cradles or the like. Apparatus of the present invention impart gentle and soothing rocking motions to cradles and the like without the need for manual rocking by the parent or guardian of the child. Various motions may be imparted to the cradle either separately or in combination. The apparatus includes a guide frame pivotally mounted to a support frame for pivotal movement about a central longitudinal axis of the guide frame. The guide frame defines a longitudinal guide path therealong. A platform is supported by the guide frame for movement along the guide path. Means mounted to the support frame are provided for moving the platform back and forth along the guide path. Means mounted to the support frame for pivoting said guide frame about a central longitudinal axis are also provided.

Abstract: The invention is to an apparatus for applying traction to an immobilized patient undergoing oscillatory therapy. The support means for weights has a portion on an oscillating support platform of the bed and part stationary beyond the oscillating portion with a cable contained partially within a conduit thereinbetween offset from the longitudinal center line of oscillating patient support.

Abstract: An oscillating hospital bed having an oscillating frame means for oscillating about a longitudinally extending axis and a patient support means mounted on the oscillating frame means for controlled pivoting of the patient support means about a transverse axis. Pack means are provided on the patient supporting portion to hold a patient in place and the oscillating frame means is cantilevered from a base support means. The pack means is adjustable to support the patient during oscillation of the oscillating frame.

Abstract: A water bed mattress is caused to undulate for therapeutic or other purposes. A solenoid (14) is mounted at one end of the water bed (head or foot), and its output shaft (15) and mattress engaging pad or pusher plate (16) are disposed at an angle so that the pad forms an acute angle with the horizontal. The pad is thus engaged by oncoming waves form the remote end of the bed in a more facing type direction, which lessens the lateral stresses on the said output shafts. The solenoid is actuated by a control device (18) which provides a generally square electrical wave control signal and which utilizes independent variable TIME ON and TIME OFF modes providing maximum flexibility of solenoid operation.

Abstract: A baby is oscillated to sleep by placing it in a carrier and pivoting the carrier in oscillation about a horizontal axis adjacent the foot end of the carrier by means of a rotating cam which provides a special predetermined motion that is effective to induce the baby to sleep. The carrier is removably mounted on a carrier support which is pivoted to an underlying base for oscillation about the aforementioned axis to impart similar motion to the carrier. The can and its drive means is mounted on the base and enclosed together with the base by the carrier support. In the preferred embodiment, wheels are mounted to the base to allow the apparatus to be moved back and forth over a ground surface.

Abstract: A body support for immobile persons comprising a series of parallel, elongate resilient cushions, with adjacent cushions tilted in opposite directions to vary the areas of support provided to a person thereon to prevent development of bed sores and other related problems. The tilting cushions, in moving in alternate directions, in addition to shifting lift from one cushion edge to the other, reciprocatively approach and move away from their neighbours in a movement which provides a massaging effect.

Abstract: An infant rocker arranged to support a bassinet or the like on a support tray suspended bu coil springs above a base and drive means arranged to rhythmically move the support tray and hence the bassinet in a predetermined pattern, which is preferably an orbital motion, in a plane parallel to the base.