Abstract: A sleep system comprises at least one mattress including a first sleep area for a first occupant, the first sleep area including a first section for a portion of a body of the first occupant, and a second sleep area adjacent to the first sleep area for a second occupant, the second sleep area including a second section for a portion of a body of the second occupant, an articulation system for articulating the first section and the second section, a first user controller configured to communicate with the articulation system in order to control articulation of the first section, and a second user controller configured to communicate with the articulation system in order to control articulation of the second section, wherein the first user controller is further configured to communicate with the articulation system in order to move the second section into a predetermined position.

Abstract: In one example, this disclosure describes a method including determining, at a central controller of an air mattress system, whether a user is present on a mattress of the air mattress system, initiating a timer in response to determining that the user is present on the mattress, enabling a light control feature of the air mattress system upon determining that the user is present on the mattress after expiration of the timer, and after enabling the light control feature, transmitting, from the central controller, at least one instruction to turn on at least one light of the air mattress system in response to determining that the user is no longer present on the mattress.

Abstract: A method can be provided that includes measuring sound waves using a sound measuring device, determining, at a central controller of an air mattress system, one or more parameter values of the sound waves, comparing the one or more parameter values with values, ranges, or patterns indicative of snoring, identifying a snoring state of a user, and initiating, with the central controller, a change to one or more adjustable features of the air mattress system.

Abstract: An electric folding bed includes a base having a load-bearing element for supporting hips of a user and at least a track extending along a head-to-foot axis of the bed, a telescopic actuator having a body pivotally attached to the base and a telescoping element linearly moveable relative to the body along the head-to-foot axis substantially, a connecting unit pivotally connected with the telescoping element, a backboard fastened to the connecting unit for the user to lean thereon, at least a supporting element pivotally attached to the base and the connecting unit, and at least a moving element disposed to the track and pivotally attached to the connecting unit. The telescoping element drives the connecting unit and the backboard to swing up and displace away from the load-bearing element. Therefore, the electric folding bed can avoid user's uncomfort and injury when the user sits up.

Abstract: A patient bed with a multimedia system is disclosed. A patient can access a net work through the multimedia system, and to join a net meeting to chat with other patients. The multimedia system can also provide a consolidated platform of medical information for a doctor or a nurse. An input device of the patient bed may have a touch pad, which allows the patient to control the position of patient support through finger gesture.

Abstract: A bed for nursing care comprises a mat unit including a hip receiving portion for supporting a hip portion of a care-dependent person, an upper half body receiving portion for supporting an upper half body portion that is upper than the hip portion, and a lower half body portion for supporting a lower half body portion that is lower than the hip portion; a bed frame unit for supporting the mat unit; and a toilet unit moveable to an opening portion formed when the hip receiving portion is stored in a lower portion. The lower half body portion comprises a thigh receiving portion that supports thigh portions of the care-dependent person, wherein the thigh portion is lifted with rising of the thigh receiving portions.

Abstract: A bed including an articulation system is provided. The bed includes a frame and an actuator coupled to the frame. The bed further includes an arcuate member and a plurality of deck sections. The arcuate member is coupled to the actuator and one of the plurality of deck sections. The actuator operates to move the arcuate member to rotate the thigh section around a natural hip pivot point of a person positioned on the bed.

Abstract: A tilt bed for assisting a patient to a standing position comprises a frame, a tilting mechanism, a mattress support plate, a mattress, and a foot support. The tilting mechanism attaches to the frame. The tilting mechanism is movable between a generally horizontal position, and a generally vertical position. The foot support is fixedly mounted to the tilting mechanism. The main portion of the mattress and the patient thereon moves closer to the foot support during tilting of the bed from the generally horizontal position to the generally vertical position, and the main portion of the mattress and the patient thereon moves distal the foot support during tilting of the bed from the generally vertical position to the generally horizontal position in a low shear manner.

Abstract: A surgical operating table has a plurality of sections, connected to each other and capable of being pivoted at least in vertical plane, and upon which the patient is rested while a surgical procedure is performed. These sections include a back support, which comprises a lower back section, a middle back section protruding therefrom, and two shoulder sections disposed on either side of the middle back section and releasably secured to the lower back section. In the releasing process, the shoulder section is first pivoted to an inclined angle downward from a plane of the lower back section and the middle back section, thus enabling a protrusion on the shoulder section to be released from a clamping of the frame portion and the rod, on the lower back section after which the shoulder section is capable of being pulled away and removed from the lower back section.

Abstract: An articulating bed incorporates an actuation system which employs an actuator pivotally attached at a first end to a midpoint of a head end rail of a frame. The actuator has a range of motion from a retracted position to an extended position. A roller assembly is pivotally attached to a central lateral rail in the frame and has a spacer bar. A second end of the actuator is pivotally attached to a midpoint of the spacer bar. The roller assembly further has rollers engaging a lower surface of an upper body support section. The upper body support section is substantially horizontal with the actuator in said retracted position and urged by the rollers for angular rotation about an axis through the range of motion for the actuator to a raised position in the extended position.

Abstract: A therapy mat table has an upper surface and removable mat. A portion of the mat and a separate plate is rotatably mounted within the flat top so as to be capable of being selectively raised and lowered to form a seat back for a patient reclining or sitting on the pad on an elongated side edge of the table. The table may also include transfer bars which help to move a patient on and off the table or when moving to a standing position or while simply standing. The table may further include a stowable foot stop, which prevents backward movement of the patient's feet when the patient is standing between the transfer bars. The table may also include a knee blocker, which helps to limit or prevent buckling of the patient's knees when the patient is standing between the transfer bars.

Abstract: A surgery table utilizing first and second sections which are hingedly attached to one another. First and second sections are also connected to supports apart from the hinged portion. An elevator moves one of the sections upwardly and downwardly at the support. The resultant position of the frame formed by the first and second sections may take the configuration of a flat surface or an upwardly or downwardly oriented “vee”.

Abstract: A patient support (10, 14) includes a source of pressurized air (64), a bladder (30), a valve (66) in fluid communication with the source of pressurized air (64) and to the bladder (30), a pressure sensor (28) in fluid communication with the bladder (30), and a controller (26) responsive to a pressure signal from the pressure sensor (28). The controller (26) may determine a rate of change of pressure within the bladder (30) and may store historical pressure data.

Abstract: The present invention is a collapsible portable field hospital bed that can be transported to remote location and is durable enough to remain at the remote location for subsequent local use. The invention can include a frame having a horizontal support assembly including a proximal end and a distal end hingably connected so that the proximal end and the distal end can be moved from an operational position to a storage position; a vertical support assembly pivotally connected to an angled support assembly and said horizontal support assembly, said angled support assembly pivotally connected to said horizontal support assembly; a stabilizing assembly included in said frame having a first hinge member pivotally attached to a second hinge member, said stabilizing assembly biased in said operational position, said first hinge member cooperating with said second hinge member to prevent said angled support assembly from folding.

Abstract: A spring assist system for use with a person support apparatus is described herein. The spring assist system comprises a spring which applies a spring force on a head support deck section to aid in motion from a first position at a higher inclination to a second position at a lower inclination with respect to a supporting frame member. The spring assist system is configured to exclusively apply spring force between the first position and the second position.

Abstract: An articulating bed incorporates a support frame having an upper body support section. A lumbar actuation lever extends from a rotatable torque tube with angle arms extending from the torque tube to a lumbar support element. The lumbar support element is retracted against the upper body support section creating minimal deflection in a lumbar region of a mattress. The torque tube is rotated with to elevate the lumbar support element. A head support bracket is mounted to a neck angle adjustment section. The neck angle adjustment section is aligned with the upper body support section. or rotated about hinge elements to provide an angled head and neck position with respect to the upper body support section.

Abstract: A wheelchair includes a seating bottom portion, a chair back bottom support member supporting a chair back bottom member, and a chair knee bottom support member supporting a chair knee bottom member. A chair leg first bottom support member is bendably coupled to the chair knee bottom support member. The chair leg first bottom support member supports a chair leg first bottom member, a chair leg second bottom support member is bendably coupled to the chair leg first bottom support member, and the chair leg second bottom support member supports a chair leg second bottom member. A chair base portion bendably couples the chair back bottom support member and the chair knee bottom support member and supports a chair waist bottom member, a first link portion coupling the chair back bottom support member and the chair knee bottom support member, and a second link portion coupling the chair back bottom support member and the chair leg first bottom support member to each other.

Abstract: There is disclosed a folding type bed including a support frame, a main frame coupled to the support frame, a back support part provided on the main frame, a central support part of which the length is adjustable by an external force on the main frame, a first driving module coupled to the main frame or the support frame, a rotary member rotatably coupled the main frame and coupled to the other end of the first driving module, spaced apart a predetermined distance from a coupling shaft with the main frame, and a first connection module slidingly coupled to the back support part and rotatably coupled to the central support part simultaneously, to rotate the rotary member when the first driving module is extended so as to tilt one portion of the back support part and to slidingly move the central support part simultaneously.

Abstract: A patient support apparatus includes a patient support surface to support a patient. The patient support surface has at least one air bladder that is inflated and/or deflated to achieve a turn assist function and/or a therapy function of the patient support surface. A graphical user interface (GUI) is configured to receive user inputs from a caregiver to initiate the turn assist or therapy functions. The patient support apparatus has control circuitry coupled to the GUI. The GUI is controlled by the control circuitry to display information indicating that the patient is improperly positioned on the patient support surface for either the turn assist function or the therapy function. Alternatively or additionally, the control circuitry indicates that the patient is improperly positioned for raising a head section of a bed frame.

Abstract: A central control braking system includes: a pedestal; at least one caster mounted at a bottom portion of the pedestal; a brake transmission shaft for controlling the caster; a plate girder movably connected to the pedestal; a pedal fixed to the plate girder; and a reversing rotary assembly connecting the plate girder and the brake transmission shaft, wherein the reversing rotary assembly enables the brake transmission shaft to rotate in reverse under the control of the pedal.

Abstract: A medical bed for positioning the patient in the lithotomy position having a mattress pad including a flexible footrest section. The footrest section cascades over and down an end of the medical bed as the mattress pad is translated, or slid, toward the end thereof. The mattress pad is positioned atop the frame, and includes a backrest section, a medial section, and a footrest section. The mattress pad is translatable, or slidable, with respect to the frame. The footrest section includes a plurality of partitioned segments that are pivotable with respect to each other such that the footrest section cascades down and over the foot-end of the frame when the mattress pad is translated toward the foot-end of the bed.

Abstract: An occupant support system for supporting an occupant comprises a frame, an articulable assembly which includes an upper body section, and a motion control system arranged to rotate the upper body section by an amount ?? relative to the frame, to translate the upper body section along the frame by an amount ?CS, and to translate the upper body section by an amount ?BS in a direction parallel to the upper body section. Both ?BS and ?CS are a function of ??.

Abstract: A support device for persons, such as a bed, treatment or operating table, chair, comprises: —a frame; —a first and a second movable member, which movable members can be adjusted independently of one another and which are designed to support the person or one or more parts of the person in various positions, and —a hydraulic system for adjusting the movable members, the hydraulic system comprising: —a reservoir for hydraulic liquid; —a first and a second hydraulic actuator associated with the first and second movable member, respectively, which hydraulic actuators can each be moved in two directions; —a hydraulic pump; —a pump activating member which is operatively connected to the pump in order for an operator to activate the pump; —a valve assembly which is provided in the hydraulic circuit between the pump and the respective actuators, and —a valve assembly operating member which can be mechanically operated by an operator and is mechanically connected to the valve assembly for selecting and providing a co

Abstract: An articulating bed incorporates a support frame having an upper body support section. A lumbar actuation lever extends from a rotatable torque tube with angle arms extending from the torque tube to a lumbar support element. The lumbar support element is retracted against the upper body support section creating minimal deflection in a lumbar region of a mattress. The torque tube is rotated with to elevate the lumbar support element. A head support bracket is mounted to a neck angle adjustment section. The neck angle adjustment section is aligned with the upper body support section. or rotated about hinge elements to provide an angled head and neck position with respect to the upper body support section.

Abstract: An enteral feeding system reduces medical risk for aspirational pneumonia when an angle of a head gatch section is outside a predetermined range of 30-45 degrees. The system comprises a hospital bed having the head gatch section and an intravenous pole connected to an enteral feeding pump. The pump has a fluid sensor which operates properly when the pump is positioned along a vertical axis. The pole is connected to the head gatch section at a 30 degree angle offset from the vertical axis. In operation, when the head gatch section is positioned less than 30 degrees, the pump will stop operating and when the head gatch section is positioned at 30 degrees, the pump will operate since the pump is positioned along the vertical axis to allow the fluid sensor to detect fluid.

Abstract: A patient support system includes a scale system, an air system, and a lift system. The patient support system also includes a control system configured to graphically communicate information about the scale system, the air system, and the lift system to a user.

Abstract: An articulated patient support apparatus includes upper and lower body support frames hinged together to form a patient support assembly which is hinged to head and foot end supports. One end of the assembly includes a length compensator to enable hinged angulation between the body support frames. Hinge motors are connected between the frames to cause hinged articulation therebetween. One or both of the body support frames has a body slide assembly mounted thereon to enable part of a patient's body to move linearly along the particular body support frame by operation of a slide motor to compensate for hinged articulation of the frames. The hinge motors and slide motor have encoders interfaced to a controller to digitally coordinate sliding movement with hinging articulation.

Abstract: An articulated patient support apparatus includes upper and lower body support frames hinged together to form a patient support assembly which is hinged to head and foot end supports. One end of the assembly includes a length compensator to enable hinged angulation between the body support frames. Hinge motors are connected between the frames to cause hinged articulation therebetween. One or both of the body support frames has a body slide assembly mounted thereon to enable part of a patient's body to move linearly along the particular body support frame by operation of a slide motor to compensate for hinged articulation of the frames. The hinge motors and slide motor have encoders interfaced to a controller to digitally coordinate sliding movement with hinging articulation.

Abstract: A infant positioning kit assembly for positioning an infant in a supine position while in a crib includes a mattress cover that has a top wall, a bottom wall and a perimeter wall that is attached to and extends between the top and bottom walls. The bottom wall has a mattress aperture extending therethrough for inserting a mattress into the mattress cover. An elastic band is attached to and is coextensive with a perimeter edge of the aperture and a first mating member is attached to the top wall. An attachment member is configured to be worn by an infant and a second mating member is attached to the attachment member. The second mating member is releasably attachable to the first mating member to retain an infant in a selected position on the mattress cover. The first and second mating members comprise hook and loop couplers.

Abstract: An articulable occupant support system for supporting an occupant, includes an upper frame, an articulable assembly comprising at least one section articulable relative to the upper frame and a motion control system. The motion control system is arranged to govern motion of the articulable assembly based on a relationship relating scheduled motion of the sections to anthropometric information.

Abstract: A gap shield assembly for shielding an open area between a first section of a bed and an adjacent second section of the bed. The gap shield has a first shield member and a second shield member. The second shield member is rotatably connected to the second section of the bed. The first shield member is rotatably and translationally connected to the second shield member. The gap shield assembly also has a width extender assembly connecting the first shield member to the first section of the bed to allow the first shield member to move inwardly and outwardly with respect to a centerline of the bed while still shielding the open area between the first and second sections of the bed.

Abstract: A bed structure includes a frame 28, a deck framework 50 moveably connected to the frame, a panel 72 moveably connected to the deck framework, and a motion converter 100. The motion converter translates the panel relative to the deck framework in response to either or both of a) relative translation between the deck framework and the frame, and b) relative rotation of the deck framework and the frame. In one detailed embodiment the motion converter includes a rack 102 secured to the frame, a primary gear 124 meshing with the rack, a panel drive sprocket 170 rotatably mounted on the deck framework coaxially with the primary gear, an idler sprocket 192 rotatably mounted on the deck framework remote from the panel drive sprocket, a slider connected to the panel, and a chain 220 engaged with the panel drive sprocket and the idler and connected to the slider.

Abstract: An enteral feeding system reduces medical risk for aspirational pneumonia when an angle of the head gatch section is outside a predetermined range of 30-45 degrees. The system comprises a hospital bed having a head gatch section and an intravenous pole connected to an enteral feeding pump. The pump has a fluid sensor which operates properly when the pump is positioned along a vertical axis. The pole is connected to the head gatch section at a 30 degree angle offset from a vertical axis. In operation, when the head gatch section is positioned less than 30 degrees, the pump will stop operating and when the head gatch section is positioned at 30 degres, the pump will operate since the pump is positioned along a vertical axis to allow the fluid sensor to detect fluid.

Abstract: A patient support apparatus system includes sensors adapted to sense a gesture of a person, or forces exerted by the person on the patient support apparatus, and to control the movement of a component of the patient support apparatus based on the gesture or forces. The movement of the patient support apparatus matches the direction of the person's gesture or applied forces. The speed of the gesture and magnitude of the applied force also influence the movement of the patient support apparatus component. The controlled movement may be the upward and downward motion of a patient support deck on the patient support apparatus, or it may be the pivoting of a section of the patient support deck, or it may be other movement. Control of the patient support apparatus is carried out based on the intent of the user, as evidenced by the user's gesture or applied forces.

Abstract: A patient bed with a multimedia system is disclosed. A patient can access a net work through the multimedia system, and to join a net meeting to chat with other patients. The multimedia system can also provide a consolidated platform of medical information for a doctor or a nurse. An input device of the patient bed may have a touch pad, which allows the patient to control the position of patient support through finger gesture.

Abstract: The invention relates to a nursing bed (1) comprising a base (2) supported on the ground and a sleeping surface (3) supported by the base (2) and comprising a back rest (4), a seat part (5) and a leg rest (6), the nursing bed being characterized in that it allows for clearance with a lateral movement of translation (20), used to enable the leg rest (6) to move laterally in relation to the seat part (5), or vice versa, the seat part (5) in relation to the leg rest (6), according to a movement of translation oriented in a direction which is essentially transversal to the sleeping surface (3), in such a way as to clear the front access to the seat part (5), and a regulator for varying the seat of the seat part (5) and/or the leg rest (6) in relation to the ground.

Abstract: This disclosure concerns a wallhugger bed with a plurality of mattress retaining brackets secured to one or more corners of the mattress platform to keep the mattress from shifting on the mattress platform during operation of the actuator.

Abstract: An adjustable bed frame assembly includes a mattress retaining bracket secured to the adjustable bed frame assembly in a shipment orientation for shipping the adjustable bed frame assembly, wherein the mattress retaining bracket, when re-secured in a mattress securing orientation, stops the mattress from sliding during operation of the actuator. The retaining bracket may be secured to the mattress platform. In embodiments, the retaining bracket is secured to the head end of the mattress platform, while in other embodiments, the retaining bracket is secured to the foot end of the mattress platform.

Abstract: A backrest of a bed is pivotable with respect to a bed frame. A backrest actuator assembly connects the backrest to the bed frame. The backrest actuator assembly is configured to raise and lower the backrest with respect to the bed frame by way of an actuator. The backrest actuator assembly is further configured with a lockable damper to release the backrest to lower due to gravity over a damped range of motion. The backrest can be so lowered during an emergency, such as an emergency that requires administration of CPR to the bed's occupant. The lockable damper can stop the lowering of the backrest at any position along the damped range of motion. After an emergency lowering, the backrest actuator assembly can automatically reset to a normal operation state.

Abstract: An apparatus for supporting a patient during a medical procedure with a breaking patient support subassembly and an angulation subassembly for changing patient angulation while substantially maintaining the height of the point of angulation. The angulation assembly includes an angulation wedge with upper and lower sides and a pair of opposed upper and lower guide members that slidably engage respective upper and lower sides. The guide members each include a key guide structure that slidably engages a complementary lock guide channel in the associated wedge upper and lower sides. The apparatus includes a torso trolley joined with the angulation subassembly and adapted for moving in cephalad and caudad directions in response to upward and downward breaking of the patient support subassembly.

Abstract: A surgery table utilizing first and second sections which are hingedly attached to one another. First and second sections are also connected to supports apart from the hinged portion. An elevator moves one of the sections upwardly and downwardly at the support. The resultant position of the frame formed by the first and second sections may take the configuration of a flat surface or an upwardly or downwardly oriented “vee”.

Abstract: A motorized bed includes a bed body and a driving device. The bed body includes a base frame, a fixed frame, and a movable frame. The driving device includes a drive unit mounted on the fixed frame, a guide tube mounted on the drive unit, a threaded rod mounted in the guide tube, an extension tube mounted in the guide tube and having a first end provided with a push portion and a second end connected with the movable frame, and a threaded mover moved by the threaded rod and movable to abut the push portion. Thus, when a human body is disposed between the movable frame and the base frame, the human body only needs to overcome the weight of the movable frame to detach the extension tube from the mover, so that the movable frame stops moving immediately.

Abstract: The present invention is to provide an automated anti-snoring bed system, which includes a bed designed to support a user lying thereon and internally provided with a driving device, a sensing device able to send out a detection signal toward the user's chest at regular intervals of time and receive a reflected signal returning from the user in response to the detection signal, and a control device. When the sensing device determines that the user is snoring according to the reflected signal, the sensing device sends out a control command to the control device and the control device then drives the driving device to change the configuration of the bed to a mode for stopping the user from snoring. Thus, the user is prevented not only from sleep disorders, but also from sleep apnea which may otherwise jeopardize the user's sleeping quality and health.

Abstract: The invention relates to a form of a passive or active annunciator that solves the problem of reminding a caregiver to reposition a patient at risk for aspiration usually located in an adjustable bed to some predetermined angular position. The annunciator may take the form of an inclinometer (100) that measures the angle of the bed (160) relative to a local gravity reference or a goniometer that measures the angle between the horizontal (140) and elevated portions (130) of the bed. The invention reminds the caregiver of the patient at risk for aspiration to maintain or reestablish the elevation of the torso of the patient at risk for aspiration to at least 30 degrees up to 45 degrees above the local horizontal to prevent or reduce the incidence of aspiration.

Abstract: A patient support apparatus includes a frame and seat, thigh, and head sections coupled to the frame. A linkage is coupled to the head, seat, and thigh sections. The linkage has a first mode of operation in which the seat and thigh sections remain substantially parallel to each other as the head section is raised and lowered and the linkage has a second mode of operation in which the thigh section tilts relative to the seat section as the head section is raised and lowered. A handle is movable relative to the head section between a first position in which the linkage is in the first mode of operation and a second position in which the linkage is in the second mode of operation.

Abstract: A hospital bed convertible to a side egress chair bed includes a base having opposite end portions; a lifting mechanism secured to the base between the end portions; a rotating frame mounted on the lifting mechanism and configured to rotate horizontally relative to the base; and a patient support surface pivotally secured to the rotating frame. The patient support surface includes a back panel, a seat panel, and a leg panel that are configured to articulate relative to each other from a co-planar configuration to a chair configuration. The leg panel includes a first section pivotally connected to the seat panel and a second section that is separable from the leg panel first section.

Abstract: An adjustable bed frame assembly includes a center frame comprising two substantially parallel side frame members connected by two substantially parallel connector frame members. The adjustable bed frame assembly also includes a base frame that includes a plurality of legs for mounting on a floor is rigidly affixed to the center frame. The adjustable bed frame assembly further includes a head frame that comprises two substantially parallel side frame members connected by at least one connector frame member. The adjustable bed frame assembly also includes an actuator for raising and lowering the head frame.

Abstract: A fluoroscopy chair convertible between a chair configuration for use during fluoroscopic procedures to a support table configuration. The fluoroscopy chair has a seat, a support column supporting the seat, a radiotranslucent chest support retained to an anterior side of the seat, and a back support retained to the posterior side of the seat. The back support is reconfigurable between a first configuration that forms an upstanding surface and a second configuration cooperating with the seat to form a support table. The chest support, which can have multiple, differently contoured support surfaces, can be adjusted vertically and rotated relative to the patient.

Abstract: A multifunctional microcomputer controlled turn-over nursing bed comprises a bed board that may fold into a L-shape or a U-shape, middle longitudinal plates and left and right side plates wherein the left side plate or the right side plate each comprises a side pillow plate, an adjustable hand rest plate and a hip leaning plate, a movable frame, and a system of interchangeable toilet cover and toilet seat connected by the movable frame which allows excrement collection from a patient lying on the bed even when the bed is folded. The side pillow plate, the hand rest plate and the hip leaning plate may fold synchronously by a link shaft. The bed further comprises a head plate and a foot plate wherein each comprising a centre fixed plate and two active plates, which can be narrowed when two active plates are inserted into a centre fixed plate.

Abstract: A hospital bed includes a frame including connected first and second sections, a head plate connected to the first section of the frame, a tail plate connected to the second section of the frame, a first lifting unit for lifting and lowering the first section of the frame relative to the head plate, a second lifting unit for lifting and lowering the second section of the frame relative to the tail plate, an axle connected to the first lifting unit, a crank connected to the second lifting unit, a hanger for hanging the axle to the frame, and a gear assembly for connecting the axle to the crank so that the crank is operable to spin the axle to actuate the first and second lifting units.