Abstract: The invention provides a conveying device. The conveying device comprises: a bottom platform, the bottom platform comprising a horizontal guide rail; a hoisting device, the hoisting device being arranged on the bottom platform and capable of moving along the horizontal guide rail of the bottom platform, the hoisting device comprising a base, a hoisting beam and a hoisting mechanism between the base and the hoisting beam, and the hoisting mechanism enabling the hoisting beam to ascend or descend relative to the base, wherein both the base and the hoisting beam extend in a direction parallel to the horizontal guide rail of the bottom platform; and a driving device, the driving device being capable of driving the hoisting device to move along the horizontal guide rail.

Abstract: Various implementations include neonatal transport apparatuses and systems employing such apparatuses. In one particular implementation, an apparatus includes: an isolation stage; a first mount on a first portion of the isolation stage, the first mount configured to engage a mounting frame of a neonatal transport unit; a second mount on a second portion of the isolation stage, the second mount configured to engage a stretcher; and a stabilizing coupler extending from the second portion of the isolation stage, the stabilizing coupler positioned to directly couple the isolation stage with a floor underlying the stretcher.

Abstract: In a method for recycling energy from stairs, a step platform is moveable between an upper and lower position. An energy storage device, coupled to the platform, stores energy when a downward force is applied thereto, causing the step platform to move to the lower position. The energy storage device (also releases stored energy as the step platform moves from to the upper position. A controllable locking mechanism (locks the step platform in the lower position when the downward force has caused the step platform to move into the lower position. A sensor determines when a downward force has been applied to the next higher step platform. A controller signals the controllable locking mechanism to unlock the step platform when the step platform is in the lower position, and when the downward force has been applied to the next higher step platform.

Abstract: A system for contactless monitoring of gas levels within an incubator, the system comprising at least one gas sampling line having a proximal end exposed to the internal space of the incubator, and a distal end associated with a monitoring unit for receiving a gas sample obtained from the incubator via the proximal end.

Abstract: The present invention relates to a scissors lift comprising a bottom frame, a top frame and a scissors mechanism arranged between said bottom frame and said top frame to displace said bottom frame and said top frame relative to each other by transfer of an actuation force. The scissors mechanism comprises a central hollow scissors arm delimited between opposite scissors arm surfaces, wherein said central hollow scissors arm has a bottom pivotal connection connecting it to said bottom frame and a top pivotal connection connecting it to said top frame. Further, the mechanism comprises two passive scissors arms being pivotally connected to said bottom frame and pivotally connected to said top frame. Each of said two passive scissors arms are pivotally connected to said central hollow scissors arm on said opposite scissors arm surfaces of said central hollow scissors arm.

Abstract: A luggage board device for a vehicle is configured to adjust a height of a partition board, which is composed of a front board, an intermediate board, and a rear board, through movements of the partition board in a vertical direction, in a state in which the partition board is horizontally unfolded, be utilized as a multi-stage shelf like a step shape by rotating the front board and the rear board up and down with the intermediate board as a reference, and be utilized as a table in indoor and outdoor spaces of a luggage room.

Abstract: A position adjustment mechanism for a lifting balance device contains: a first cover and an adjustment device. The first cover includes at least one lifting balance device, and each of the at least one lifting balance device includes a first support, a second support intersected with the first support, and a shaft configured to connected the first and second supports. The adjustment device is located bellow the shaft. The adjustment device is fixed inside the first cover, the first cover has a first opening located below the shaft. A threaded sleeve is connected with the first opening and is screwed with a threaded tube, such that the threaded tube is adjustably moved relative to the threaded sleeve so as to change a position of a top of the threaded tube and to limit a lowest descending position of each of the first support and the second support.

Abstract: A loading/unloading system for an associated truck bed includes first and second laterally spaced rails configured for re) receipt in the associated truck bed. First and second support leg assemblies are operatively associated with the first and second rails, respectively. First and second motors are received on the first and second leg assemblies, respectively, and are configured to selectively raise and lower the first and second rails. A sensor assembly is mounted on the rails to monitor the position of the first rail relative to the second rail. The sensor assembly is interconnected to the first and second motors for maintaining the rails at the same height relative to one another.

Abstract: An elevator car defining an interior space for accommodating passengers and/or cargo, comprising a support frame positioned above the interior space, a working platform moveable between a stowed position, above the interior space, and an operational position, within the interior space and at least one extendable suspension arrangement arranged to suspend the working platform from the support frame. The extendable suspension arrangement includes a connection plate, a first arm member connected at a first end to the support frame and slidably connected to a first connection point of the connection plate and a second arm member connected at another first end to the working platform and slidably connected to a second connection point of the connection plate.

Abstract: A system and method used to translate a building structure (e.g., a single-family home) from a first position (e.g., above grade) to a second position (e.g., below grade) is provided. The system may thereby protect building structures from above grade threats such as wildfires, tornados, hurricanes, and other threats by lowering the building structure into a below grade cavity and sealing it therein. The system may include a base that supports the building structure and a translation system that lowers the base and the building structure below grade. The translation system may include scissor lifts, hydraulic lifts, jackscrew lifts and/or other types of lifts. The system also may include a quick release utilities system to disconnect the various utilities during the translation and a protective roof that may be extended over the top of the building structure to protect it from the threats above.

Abstract: An elevator arrangement including an elevator with an elevator control system, a safety system and an inspection or maintenance mode, which elevator having an elevator car arranged to run up and down in an elevator shaft along guide rails, and which elevator car is equipped with a roof. The roof of the elevator car is arranged to uncover upper part of the elevator car in order to form a natural safe working space inside the elevator car, and that the arrangement includes a control mechanism in order to control the position of the roof.

Abstract: A telescoping storage container adapted for receipt in a bed of a pickup truck and behind a cab of the truck. The storage container includes an open top external box and an open top internal box. The internal box is sideably received inside the external box and includes one of more sliding tool storage drawers and a shelf with a rotating bin for easy access to the stored tools. The internal box includes a moveable top lid, which covers an open top in the external box and an open top in the internal box. The storage container, when configured as a truck toolbox, is dimensioned for receipt on the truck bed and next to the rear of a truck cab. Also, the storage container includes a self-contained battery power supply system to operate a scissor lift for raising and lowering the internal box inside the external box.

Abstract: A powered actuator system for moving a lumbar support bar of a furniture piece is disclosed and comprises a single dual-directional powered actuator mounted upon a foundation base with respect to which the lumbar support bar is to be moved between fully extended and fully retracted positions, as well as a multiplicity of intermediate positions. The single dual-directional powered actuator is operatively connected to a first end portion of the lumbar support bar by means of a first main lifting link, while a synchronization bar operatively interconnects the first main lifting link with a second main lifting link operatively connected to a second end portion of the lumbar support bar. In this manner, the lumbar support bar is moved between its extended and retracted positions in a rectilinear and balanced mode.

Abstract: The present disclosure discloses a lifting table, has a tabletop plate, a table-supporting frame connected with the tabletop plate, a base, an X-shaped supporting leg for connecting the table-supporting frame and the base, and a power driving device controlling the open-and-close of the X-shaped supporting leg to achieve the lifting of the tabletop plate, the power driving device is connected to the table-supporting frame, and the power output end of the power driving device is connected with the X-shaped supporting leg; the lifting table further comprises an inclined connecting rod mechanism which always applies an oblique force to the X-shaped supporting leg; one end of the inclined connecting rod mechanism is connected to the X-shaped supporting leg, and the other end of the inclined connecting rod mechanism is connected to the power driving device.

Abstract: The present disclosure discloses a desk-mounted lifting platform comprising a workbench, an upper support and a low support. The workbench is connected to the upper support. A first lifting arm and a second lifting arm are arranged between the upper support and the lower support. The first lifting arm and the second lifting arm are X-shaped and hinged at an intersection thereof. An upper end of the first lifting arm is hinged with the upper support. A lower end of the first lifting arm is slidably fitted on the lower support. A lower end of the second lifting arm is hinged with the lower support. An upper end of the second lifting arm is slidably fitted on the upper support. A gas spring is arranged between the upper support and the lower support. The gas spring is used for providing a lifting force to lift the upper support.

Abstract: The present invention discloses a multifunctional vehicle lifting, steering, moving and obstacle crossing device. The apparatus is composed of a rotating mechanism, a lifting mechanism, a running mechanism and a control mechanism, is mounted at a bottom of an automobile, can be conveniently folded at the bottom of the automobile when not used at ordinary times, and has characteristics of portability, flexibility, no space occupation and easy operation. The apparatus can realize functions of a vehicle, such as lifting, rotating, moving and the like, in a wired or wireless control manner, and effectively overcome defects that the vehicle cannot realize four-wheel off-ground, entire side movement and in-situ rotation or pass through a narrow road or stride across a wide ditch or cross a high and narrow obstacle, thereby completing relatively difficult tasks of the vehicle, such as parking, moving, turning-around and turning in a narrow space, crossing ditches etc.

Abstract: A scissor lift apparatus includes a sliding carriage member and a pivoting linkage added to a conventional scissor lift in order to lower the force required to lift a tray holding heavy media during the initial portion of the lifting action where the scissor lift is fully compressed.

Abstract: A hand operated forklift with either a cable winch lift assembly or scissor arm lift assembly for lifting pallets and other heavy items. The forklift includes a mast assembly having a mast frame with winch assembly and winch cable mounted thereon. The mast frame is mounted on top of a mast base frame. The frame includes a pair of large front wheels and a pair of large rear pivot wheels. A handle is attached to the rear of the frame for turning the rear wheels and moving the forklift. A fork assembly is mounted on front of the mast assembly and includes a fork frame and two adjustable, “L” shaped lift forks. The forks are used for engaging and lifting pallets. The fork frame is slidably mounted on the mast frame and connected to a lift assembly. The lift assembly is used for raising and lowering the fork frame and forks on the mast frame.

Abstract: An automotive lift comprises a pair of runway sections. Each runway section comprises a deck portion, two pairs of legs, and a pair of elongate sliding members. The pairs of legs are pivotally coupled with the deck portion. The elongate sliding members are pivotally coupled with the pairs of legs and are slidable relative to the deck portion. A hydraulic cylinder assembly is coupled with the deck portion by a clevis and with the elongate sliding members by a piston and piston block. The hydraulic cylinder assembly is operable to translate the elongate sliding members relative to the deck portion, thereby pivoting the pairs of legs relative to the deck portion to lift the deck portion relative to the ground. A hydraulic system is operable to synchronize lifting of the runway sections. A braking mechanism is configured to restrict descent of the runway sections.

Abstract: The present disclosure relates to a method for mounting lift components of a lift system in a vertical shaft of a building with the aid of a mounting system which can be moved in the shaft, wherein the lift system has at least one cage which can travel along guide rails in the shaft. In order to develop the method to achieve shorter fitting times and less dependency upon how advanced the construction of the building is, according to the invention a mounting system is positioned in the shaft, having a support platform and a mounting platform, which are disposed one above the other, and having a lifting and pulling device, the support platform and the mounting platform being alternately fixed in position in the shaft and the platform which is not fixed in position at any one time is displaced in the vertical direction by means of the lifting and pulling device relative to the platform fixed in position. In addition, the invention relates to a mounting system for carrying out the method.

Abstract: A display case for easily moving items on display to a safe. The display case includes a first display portion and a second safe portion. The front and back walls of the second safe portion have first upper panels which pivot to form the top wall of the safe. A lift mechanism is mounted in the second safe portion to move the items from the display position to the stored, safe position inside the second safe portion. A control system controls the first upper panels and the lift mechanism.

Abstract: Disclosed is a scissor lift including a bottom frame, a top frame, a scissor mechanism arranged between the bottom frame and the top frame to displace the bottom frame and the top frame in relation to each other by means of the force provided by a linear actuator, a gearing arranged between the scissor mechanism and the linear actuator, where the linear actuator has a linear actuator point of attack at one end of a lever arm of the gearing, where the bottom frame is connected to a bottom frame point of attack at another end of the lever arm and where the scissor mechanism is connected to the lever arm through a lever arm pivotal joint arranged between the linear actuator point of attack and the bottom frame point of attack.

Abstract: A pneumatic system with multiple air reservoirs is connected to the bellows of a load elevator. A plurality of valves enables the optional pneumatic connection of different combinations of reservoirs so as to change the range of operation of the elevator to meet the self-adjusting weight requirements of a particular job at hand. In the preferred embodiment, the air actuator is pneumatically connected to a main air reservoir, which in turn can optionally be coupled in series with one or two additional reservoirs of different capacities. As a result of this configuration of its pneumatic system, the elevator can be switched between and operated at three different load levels, at the convenience of the operator, without changing the amount of air in the system.

Abstract: A pressurized underground enclosure includes a battery venting system having a battery within a battery box in a sealed enclosure. A first pipe is fluidly connected to the battery box and an ambient atmosphere and includes a vacuum generator for reducing a pressure in the battery box. A second pipe is fluidly connected to the battery box and the ambient atmosphere and includes a one-way valve permitting airflow to the battery box and precluding airflow from the battery box to the ambient atmosphere. The enclosure includes a scissors lift including scissor linkage units having arms pivotally connected at terminal ends and at central positions. The scissor linkage units are moveable from a retracted to an extended position by pneumatic cylinders. The internal pressurization of the enclosure is selectively released and locking mechanisms are retracted before a rack of the scissors lift is extended through an opening of the enclosure.

Abstract: A lift assembly includes a base and a platform at a relatively greater distance from the base in an extended state than in a contracted state. The lift assembly includes a pair of scissor arms with each arm having opposed first and second ends, and pivotably connected to each other about a central axis. The lift assembly includes a drive screw mechanism including a shaft defining a longitudinal axis, and further includes a drive motor, a block, and a collar. The lift assembly further includes first and second pairs of links. Each link has opposed first and second ends and an edge facing away from the central axis and defining a recess in the link. The collar and block are spaced from the central axis and indirectly coupled to the pair of scissor arms through a pair of links.

Abstract: A belt-driven transportation system including a first set of pulleys rotatably attached to a first member and a second set of pulleys rotatably attached to a second member. The first and second members have relative movement to each other. The system further includes a unitary belt that is guided through a path defined by the first and second sets of pulleys. A plurality of flange members maintain a proper positioning of the belt on the pulleys.

Abstract: A work transfer apparatus includes a work carrying mechanism, a driving source that drives the work carrying mechanism, a sealed box that accommodates the driving source in a hermetically sealed state, and a coolant circulation path provided in the sealed box for cooling the driving source. The sealed box includes a box body with an opening, and a partition lid for closing the opening. The partition lid includes an outer plate member and an inner plate member superposed on the outer plate member. The coolant circulation path is disposed at the interface between the outer plate member and the inner plate member.

Abstract: This involves a cart that can be used in changing a marking module in a xerographic color marking system. The cart has a lifting mechanism securely attached to its upper surface. When the marking module is to be changed and a new replacement module installed, the lifting mechanism is used to support the marking module during each of these procedures. Since the marking modules are relatively heavy (30-35 lbs.), to prevent accidental damage to the module, the cart and its attached lifting mechanism are conveniently used by the customer. The lifting mechanism is made up of an upper cradle, a bottom plate attached to the cart and a movable linkage. The module securely rests in the cradle in both removal and installing operations. It is not uncommon for a customer to want to change a color or colors in one or more modules. This cart and its attached lifting mechanism makes it relatively easy to accomplish this change.

Abstract: This invention provides a xerographic marking module that has a built-in lifting mechanism that is useful in installing a new module in a xerographic marking system. The lifting mechanism forms the bottom portion of the marking module and comprises an upper cradle to hold the remaining module portion, a lower plate that constitutes the bottom of the module when in a collapsed position, and a movable linkage that connects the cradle to the lower plate. When in installation mode, the linkage creates a vertical force which will upwardly push the cradle (holding the module) away from the lower plate into an installation elevation. After slides in the module and in the color marking system are mated, the lifting mechanism is collapsed and the module pushed into the color marking system or apparatus.

Abstract: A scissors-type lift assembly including a base and a platform, the lift assembly having extended and contracted states, with the platform at a relatively greater distance from the base in the extended state than in the contracted state. The lift assembly includes a pair of scissor arms each having opposed first and second ends, and pivotably connected to each other about a central axis located between their respective first and second ends, the first end of each scissor arm coupled to the base, the second end of each the scissor arm coupled to the platform. The lift assembly also has a drive screw mechanism including a shaft, a drive motor rotatably coupled to the shaft, a block threadedly engaged with the shaft and having longitudinal movement relative to the shaft, and a collar relative to which the shaft is rotatable and longitudinally fixed relative to the shaft.

Abstract: A worker-lifting unit such as a boom lift or scissors lift may be provided with fall-arresting system for a worker. The fall-arresting system may include a worker-support device enclosed by guard rails and an anchoring point for a fall-arresting harness of the worker. The anchoring point may be positioned on the worker-support device high enough so that, when the worker is in the device, the anchoring point is above the worker's harness. Thus the worker may safely leave the device, when it is in a raised position, while the worker's fall-arresting harness may remain attached to the anchoring point.

Abstract: A belt-driven transportation system including a first set of pulleys rotatably attached to a first member and a second set of pulleys rotatably attached to a second member. The first and second members have relative movement to each other. The system further includes a unitary belt that is guided through a path defined by the first and second sets of pulleys with the path substantially lying in a stationary plane, and a plurality of retention rollers. A retention roller is disposed adjacent each pulley, with the belt extending about the pulley and between the pulley and the retention roller. The positioning of the belt substantially on the path is maintained by the plurality of retention rollers, and the first and second members are moved relative to each other with changes in the length of the path.

Abstract: A belt-driven transportation system including a first set of pulleys rotatably attached to a first member and a second set of pulleys rotatably attached to a second member. The first and second members have relative movement to each other. The system further includes a unitary belt that is guided through a path defined by the first and second sets of pulleys. A plurality of flange members maintain a proper positioning of the belt on the pulleys.

Abstract: Disclosed is an ascent and descent apparatus for a liquid material spray printer, which may control a distance between a subject and a spray assembly optimally. The apparatus includes a sliding member having a pair of sliders selectively reciprocating oppositely by a driving unit; a frame installed above the sliders and having an elongated guide hole corresponding to a reciprocating range of the sliders; and a pair of crosslink members installed to an upper surface of the frame to couple with the sliders through the hole and whose upper end supports a flat table. The crosslink members include a pair of unit links hinged at their substantial center, whose lower ends are respectively coupled to the slider and hinged to the frame, and upper ends are respectively hinged to the flat table and supports the flat table rotatably, whereby the flat table is lifted by reciprocation of the sliders.

Abstract: A wheelchair lift assembly is provided. The wheelchair lift assembly includes a frame, a platform, and a lift mechanism associated with the frame. The lift mechanism includes a stabilizing arm and at least one lift arm member having a first end connected to the platform. The first end of the lift arm member pivots and translates relative to the platform as the platform is reciprocated between raised and lowered positions. The wheelchair lift assembly also includes a drive assembly. The drive assembly selectively provides a driving force to the lift mechanism without directly providing the driving force to the stabilizing arm.

Abstract: A cart lifter is provided that is adapted to be mounted to a refuse container or directly to a refuse collection vehicle. A support is provided that is adapted to be pivotally mounted adjacent to the loading area of either the refuse container or the vehicle. First and second support arms are provided that are carried by the pivoting support. The support arms are movable relative to the support frame between a first position in which the support arms are adjacent the refuse container or vehicle and a second position in which the support arms are relatively angularly disposed with their free ends being spaced outwardly away from the support frame. A container capturer is provided for engaging and releasing a smaller refuse collection cart, and the free ends of each of the support arms are adapted to carry the container capturer.

Abstract: A lift machine comprises a base, a support for supporting a load above the base, a lift actuator operatively connected between the base and the support for raising and lowering the support relative to the base, and a support stabilization mechanism operatively connected between the base and the support for stabilizing the support relative to the base during raising and lowering of the support by the lift actuator. The support stabilization mechanism comprises a pair of opposed linkages, with each of the pair of opposed linkages having a lower torque tube link and an upper torque tube link. The lower torque tube link has a torque tube operatively pivoted to the base. The upper torque tube link has a torque tube operatively pivoted to the support.

Abstract: A utility lift may include a base frame, an upper plate and a plurality of support arms engaged with the base frame and the upper plate. The support arms may include first and second support arms adjustably engaged with the upper plate and third and fourth support arms adjustably engaged with the base frame. An exemplary embodiment may also include a power source connected to an engagement member, where the power source can be adapted to manipulate the engagement member and the engagement member can engage the plurality of support arms.

Abstract: A transfer car in a conveyance system for metal coils, having a support saddle, a chassis that can be moved along a conveyance path by a drive and a mechanism for raising and lowering the support saddle along a linear vertical guide on a plate-like base frame. A steel slab is used as the plate-like base frame, on which a scissor unit is mounted for the purpose of linear vertical guidance and so as to not take on any lifting forces. Two lifting cylinders are installed some distance apart as the drive and act directly on the support saddle to provide the sole lifting forces to raise and lower the support saddle.

Abstract: A lifting device adjusts the height of a top part relative to a base part for a patient couch. The lifting device includes an elevator mechanism and a drive unit for height adjustment. The elevator mechanism has a scissor mechanism with two scissor arms, which are pivotably connected together via a scissor pivot joint. The elevator mechanism further includes an elbow mechanism having two elbow arms, which are pivotably connected together via an elbow pivot joint. Each of the elbow arms is linked to a scissor arm via a linking pivot joint.

Abstract: The adjustable stand has lower and upper components spaced vertically apart. The upper component supports a monitor of a computer and is movable upwardly and downwardly relative to the lower component while the lower component remains fixed in position. An operator of the computer can accordingly adjust the monitor to eye-level whether the operator is standing or is seated. A platform supports a keyboard and is movable with the upper component. The level of the platform may be adjusted selectively upwardly and downwardly relative to the upper component.

Abstract: A pressurized underground enclosure includes a battery venting system having a battery within a battery box in a sealed enclosure. A first pipe is fluidly connected to the battery box and an ambient atmosphere and includes a vacuum generator for reducing a pressure in the battery box. A second pipe is fluidly connected to the battery box and the ambient atmosphere and includes a one-way valve permitting airflow to the battery box and precluding airflow from the battery box to the ambient atmosphere. The enclosure includes a scissors lift including scissor linkage units having arms pivotally connected at terminal ends and at central positions. The scissor linkage units are moveable from a retracted to an extended position by pneumatic cylinders. The internal pressurization of the enclosure is selectively released and locking mechanisms are retracted before a rack of the scissors lift is extended through an opening of the enclosure.

Abstract: An improved slider scissor lift results in forward or backward movement of a raised work platform. The forward or backward movement is achieved by positioning upper pins and sliders oppositely from lower pins and sliders. This oppositely pinned configuration results in an operation whereby the base of the scissor lift is moved toward the rear of the base platform and the work platform is drawn toward the rear of the scissor lift.

Abstract: A storage apparatus and system, especially for kitchens. The apparatus includes a stationary counter portion, a moveable island riser, a lift assembly, and a guide assembly including vertically mounted guide shafts that support guide bearings situated in a housing mounted to the moveable island riser. Electronic sensors protect against operation of the lift assembly when interfering objects are sensed, and then lift assembly operation is interrupted. The moveable island riser provides cabinet space or shelving and may be provided with electrical outlets for use with common kitchen appliances.

Abstract: The rolling friction force of ball screw is much small than the sliding friction force of it. Using ball screw as the transmission mechanism for elevator, so as to find the differences of friction forces between rolling motion and sliding motion. Besides, the current of motor has the obvious relationship to the driving force of motor, we use current of motor for ball screw type elevator to monitor the system. And, before the serious damage occurring, the monitor system can find the different form the current of motor, and make the operation for elevator safer.

Abstract: An elevating transport apparatus for elevating and transporting a body to be transported, with an elevating section connecting a transport path and a transport path positioned at different heights. A first support shaft in the horizontal direction and a second support shaft are disposed parallel to each other on a stand. The second support shaft can be freely moved to approach or separate from the first support shaft, with guide apparatuses. A crank arm is supported by the second support shaft, and a distal end portion of a swing arm supported by the first support shaft is linked via a linking shaft to an intermediate position of the crank arm. A transport body support apparatus is provided via a free end support shaft on the free end section of the crank arm and can hold the body via a transport machine.

Abstract: A lift machine comprises a base, a support for supporting a load above the base, a lift actuator operatively connected between the base and the support for raising and lowering the support relative to the base, and a support stabilization mechanism operatively connected between the base and the support for stabilizing the support relative to the base during raising and lowering of the support by the lift actuator. The support stabilization mechanism comprises a pair of opposed linkages, with each of the pair of opposed linkages having a lower torque tube link and an upper torque tube link. The lower torque tube link has a torque tube operatively pivoted to the base. The upper torque tube link has a torque tube operatively pivoted to the support.

Abstract: A load lifting device includes a lower structure, an upper structure movable with respect to the lower structure between a lowered position and a raised position, a scissors-like pantograph, including at least two arms mutually articulated according to an X-shape, connecting the upper structure to the lower structure, and an actuator device controlling the position of a connecting element which connects the actuator to one arm of the pantograph and having a cam-following element cooperating with a fixed cam. The actuator is articulated to the connecting element around an axis which is located below the articulation axis of the connecting element to the arm of the pantograph, in such a way that, when the actuator is activated to cause the lifting movement of the device, the connecting element acts as a pushing strut subjected substantially to compression between the cam and the articulated arm. Preferably the actuator includes a hoist device with a belt, cord, or chain engaging a number of pulleys.

Abstract: A lifting device adjusts the height of a top part relative to a base part for a patient couch. The lifting device includes an elevator mechanism and a drive unit for height adjustment. The elevator mechanism has a scissor mechanism with two scissor arms, which are pivotably connected together via a scissor pivot joint. The elevator mechanism further includes an elbow mechanism having two elbow arms, which are pivotably connected together via an elbow pivot joint. Each of the elbow arms is linked to a scissor arm via a linking pivot joint.

Abstract: An elevating load platform comprising a base member and a load supporting member interconnected by a linkage means that facilitates vertical movement of the load supporting member generally parallel to the base member, and a plurality of coil springs positioned to urge the load supporting member upwardly relative to the base member so that when the load supporting member is laden the coil springs are compressed, and as the load is progressively removed the coil springs urge the load supporting member upwards to thereby maintain the load supporting member at a desired height, the linkage means comprising a pair of spaced scissor linkages interconnected by a central cross-member, the plurality of compression springs being positioned in a spaced array interposed between the base member and the cross-member.