The invention relates to an adjusting device 2 for vehicles 1, in particular electric wheel chairs or rehabilitation vehicles, recumbent systems and nursing beds, comprising at least one mounting plate 3 and one support plate 4 with a lifting device 5 comprising at least two scissor mountings 20, which are arranged at the longitudinal side edge or in a corner region of the mounting 3 or support plate 4 each and are vertically adjustable by a driving means, wherein each scissor mounting 20 is formed as double scissors and includes a first, lower scissor element 21 and a second, upper scissor element 22 which are connected to each other at one end via a common rotation pin, and the lower scissor element 21 is connected at the other end to the mounting plate 3, and the upper scissor element 22 is connected at the other end to the support plate 4 via fastening means. In order to achieve a diagonal tilting of the adjusting device, according to the invention, the at least one fastening means consists of a bracket 35 connected to the support plate 4 and a fastening unit 30 axially movable with respect to the bracket 35 at which the ends of the upper scissor elements 22 of at least one scissor mounting 20 are hinged. By means of the bracket 35 and the fastening unit 30, an axial moveability in the longitudinal direction of the vehicle seat 13 is permitted so that no deadlock can occur even in extreme positions of the scissor mountings 20.

A removably mounted wheelchair lift device that can elevate the wheelchair and its user. The lift device has a novel lifting mechanism which has an upper plate, a lower plate, a knee plate, an upper interior link, an upper exterior link, a lower interior link, a lower exterior link and a transfer link. The various parts of the lifting mechanism are pivotally attached to one another in a manner which provides a linear and precise extension and retraction. Extension and retraction of the lifting mechanism is achieved by a rotary electric motor and gear drive which introduce a torque between adjacent parts of the lifting mechanism. The lifting mechanism maintains a parallel relationship between its top and bottom plates throughout its range of motion. The lift device may also be used in other applications where the level or angle of the equipment or surfaces being supported must remain constant regardless of height. Other applications may include, but are not limited to, supporting hospital beds, medical operation tables, manufacturing work stations, office work stations, pallet stand, and other warehouse and storage applications.

The present disclosure includes methods of operating a wheelchair configured to reposition an occupant between a lowered and a raised position. The wheelchair can include a frame, a seat moveable relative to the frame, a drive wheel, one or more pairs of arm assemblies, and one or more sensors. The arm assembly includes a wheel configured to move from a first spatial location when the wheelchair is operating on flat, level ground to a second spatial location that is different than the first spatial location. Arm limiters can selectively engage the arm assembly based on at least one of a seat position, position of the arm assembly, and surface conditions of ground surface. The arm limiters can limit the range of motion of the arm assembly and sometimes other operational aspects of the chair. The methods adjust the maximum operational speed of the wheelchair when the seat is in an elevated position based on sensor data relating to one or more of the arm limiter position and the position of the frame.

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. Further, the scissors lift comprises a motor providing said actuation force, said motor located between said opposite scissors arm surfaces of said central hollow scissors arm. Thereby, the motor may be protected and at least partially enclosed by the scissors lift and even by the central hollow scissors arm, allowing a safer and/or more easily maintained scissors lift.

A medical chair includes a base, a seat section, and a leg rest pivotally mounted relative to the seat and adapted to move between an extended position and a retracted position. The chair further includes a scissor mechanism coupled to the leg rest to extend and contract the leg rest and an actuator mounted on one end relative to the seat section and having an extendible driving end coupled to the leg rest wherein when the extendible driving end extends the extendible driving end pivots the leg rest about the pivot axis and extends the scissor mechanism.

A support device includes a wheel, a base member, a leg coupled to the wheel and the base member, the leg including an upper leg segment, a lower leg segment positioned below the upper leg segment, a joint positioned between the upper leg segment and the lower leg segment, the joint including a cam defining a non-circular perimeter, and an actuator coupled to one of the upper leg segment and the lower leg segment, the actuator including an engagement member that is engaged with the non-circular perimeter of the of the cam of the joint, where the actuator selectively moves the engagement member to move the cam and the upper leg segment and the lower leg segment about the joint.

A transfer machine includes a main body assembly and a lifting assembly. The main body assembly includes two lifting rods capable of moving up and down and two seat plates facing the lifting rods. Each seat plate can rotate around the corresponding lifting rod thereby enabling the two seat plates to close or separate from each other. The lifting assembly includes a base, a connecting rod and a control assembly fixedly connected to the lifting rods. The base includes two guiding rods extending up and down, and each lifting rod can move in the up-down direction along the guiding rod. The control assembly includes a pushing rod, connected to the connecting rod; and a drive arm, driving the lifting rods to move in the up-down direction, thereby driving the main body assembly to move up and down. The connecting rod includes two foot sections.

An adjustable lifting mechanism for use as or with a seating apparatus. The lifting mechanism has a base to which a pivot of a parallelogram structure is attached. A spring extends from a first link of the parallelogram to an adjustable termination point on a second link of the parallelogram to form a lifting triangle. A lifting power adjustment mechanism adjusts the position of the spring termination point with respect to the main pivot. An extension is in fixed relation to one of the four parallelogram links, and is configured to maintain its angle with respect to the horizontal when angles of the parallelogram are varied upon raising or lowering the lifting mechanism between a sitting mode and a standing mode. The extension thus serves as a base for a rear seat section.

A multifunctional wheelchair contains: a body, a support plate, a lifting seat, and a shampoo basin. The body includes a retractable mounting, a chair back, at least one drive device, and two frames. The two frames have two main wheels, the two frames have two guide wheels, and the two armrests are arranged on a second drive device. A respective armrest has an abutting portion, and the retractable mounting have two racks. The support plate is detachably engaged on the retractable mounting of the body. The lifting seat is removably engaged on the retractable mounting of the body, and the lifting seat includes a saddle on a third drive device which is configured to drive the saddle to lift or descend adjustably. The shampoo basin is detachably connected on the chair back and included a washing chamber.

A rear side entry type wheelchair includes a driving device comprising a pair of driving frames provided on left and right sides thereof and driving wheels provided in the driving frames, respectively, a seat device including a pair of horizontal frames coupled to the driving device and saddles configured to be rotated about a vertical shaft on surfaces of the horizontal frames, a back support device including a back support opening/closing interworker provided on a rear side of the seat device and a back support provided in the back support opening/closing interworker configured to be foldable so as to be opened and closed, and a handle device provided on a front side of the seat device.