Abstract: The invention relates to a scissors-like lifting device having a pair of scissors that are arranged between a carrier or support unit and a base unit. Each pair of scissors is provided with two arms which can be pivoted about corresponding axles. The scissors-like lifting device is provided with a lifting truck that can be moved by means of a drive in order to open and close the scissors. The inventive configuration efficiently controls the lifting movement. The band-like traction mechanism can be wound-up on the drum by means of the drive in order to pull the lifting truck towards the scissors axle so that the scissors are opened. The band-like traction device can be unwound from the drum so that the truck is moved away from the scissors axle by the force of gravity on the support and arms thereby closing the scissors.

Abstract: A lift for lifting motorcycles, ATV's, or any similar vehicle. The lift includes a base, an upright extending from the base, a four-bar load-transferring lifting mechanism, a lifting frame adapted to engage the vehicle, and an operator for lifting and lowering the lifting frame.

Abstract: A mechanism is disclosed that provides motion and force while maintaining parallelism between a base structure and a movable structure. This is accomplished by opposed pairs of pivoting arm assemblies, which are synchronized by a timing device that links opposed pairs of pivoting arm assemblies to ensure that the arm assemblies move the same distance. The mechanism operates in any spatial orientation. Applications of the mechanism include lift tables, adjustable work stations, vertically adjustable conveyors, and others.

Abstract: A lift for vehicles comprises two parallel ramps for loading the vehicles which can be actuated so as to move vertically. The ramps have concurrent ends which are rigidly coupled to the cross-member of a portal-like frame, with the cross-member being actuatable with a vertical translational parallel motion by way of corresponding actuation along a pair of posts. Corresponding grid-like frames, with rods hinged in a scissor-like arrangement for the constant resting of said ramps on a resting surface and/or floor, are provided below each ramp.

Abstract: This table comprises scissor arms (1, 2) assembled on a common rotation axis (3) and two thrust shafts (6, 7) shifting by the action of drive means and acting on the opposite sides of the scissor arms (1, 2), causing the tabletop (5) to lift or lower. The drive means comprise: a geared motor (8) providing a rotational movement to a first thrust shaft (6); an anti-rotation support (9) preventing the geared motor (8) from rotating around said first thrust shaft (6), and belts (10) fixed to the anti-rotation support (9) by one of their ends and to the periphery of the first thrust shaft (6) by the opposite end, wrapping around the second thrust shaft (7) with their intermediate area.

Abstract: A motorized scissor jack is provided including upper and lower limit switches. The motor is connected with a drive assembly that extends and retracts the jack through a displacement screw. The motor has two speeds. The jack is connectable to a vehicular or standard alternating current power source. The upper and lower limit switches limit the extension and retraction of the jack to defined peak and bottom points. The jack is configured for operation in inclement weather.

Abstract: A method for adjusting a first force applied to a movable element in a first position of the movable element by a force applying device, the force applying device applying a second force to the movable element in a second position of the movable element. The method includes connecting the movable element and a base element with a scissors-type linkage; mounting the force applying device to the scissors-type linkage at a first mounting point; mounting the force applying device to the base element at a second mounting point; and moving at least one of the first and the second mounting points along a constant force curve, so that the second force remains constant as the first force is adjusted. A device for adjusting a first force applied to a movable element in a first position is also provided.

Abstract: A low level scaffold with ball screw drive is a lightweight, mobile, compact, electrically activated, self-erecting, scissor-type lifting platform. The electronic system utilizes an electric motor in direct drive arrangement with a ball screw assembly to vary the platform height from a retracted position to extended position. Electric switches limit reverse direction between the retracted and extended positions to vary platform height anywhere between the minimum and maximum heights above ground level. The design allows for transportation through household doorways and provides anti-tilt arms with threaded level mounts for use on non-level surfaces. The scaffold provides homeowners and small commercial contractors with an apparatus to perform small interior and exterior projects at elevated heights.

Abstract: A free link system including a drive assembly mounted along an imaginary longitudinal center line of a rectangular base, the drive assembly including two identical units provided on opposing ends of the base; a main platform that is raised and lowered by operation of the drive assembly; and a guide frame mounted to the base extending perpendicularly to the same, the guide frame being provided on one long end of the base and acting to guide the movement of the main platform.

Abstract: A vehicle lift has a base crossbar, a top crossbar, an oil cylinder, a motor, and a pair of support frames. The top crossbar has a slot to receive an upper end of one of the support frames. A motor is connected to the top crossbar. The oil cylinder is disposed between the base crossbar and the top crossbar. Each of the support frames is disposed between the base crossbar and the top crossbar.

Abstract: A scissors lift with a drive apparatus that raises and lowers a load platform by extending and collapsing a scissors linkage. A drive motor moves a cam follower through generally horizontal reciprocal motion. The cam follower engages and follows a cam mounted on the scissor linkage to extend the scissor linkage. The cam is positioned and shaped to gradually accelerate and decelerate scissor linkage extension. The cam is also shaped to allow the drive motor to accelerate to an optimum desired operating speed before causing the drive motor to bear the load of extending the first scissor linkage and raising the load platform.

Abstract: A lift for vehicles comprises two parallel ramps for loading the vehicles which can be actuated so as to move vertically. The ramps have concurrent ends which are rigidly coupled to the cross-member of a portal-like frame, with the cross-member being actuatable with a vertical translational parallel motion by way of corresponding actuation along a pair of posts. Corresponding grid-like frames, with rods hinged in a scissor-like arrangement for the constant resting of said ramps on a resting surface and/or floor, are provided below each ramp.

Abstract: This mechanism is designed to provide motion and force while maintaining parallelism between a base structure and a movable structure. This is accomplished by opposed pairs of pivoting arms which are synchronized by a timing device which links an arm with the arm opposite to it and ensures that these arms move the same distance but in opposite directions. This mechanism will work in any spatial orientation. Applications of this mechanism include lift tables, adjustable work stations, vertically adjustable conveyors, and others.

Abstract: A lift assembly includes first and second elevator structures, each including a first scissors section, a second scissors section pivotally connected to the first scissors section and supporting a lift shaft which extends between the first and second structures, at least one intermediate scissors section pivotally connected to the second scissors section, and an upper scissors section pivotally connected to an uppermost of the intermediate scissors sections and supporting a top bar. First and second side plates upstand adjacent the first and second structures, each having therein an elongated slot, the lift shaft being disposed in the slots. A lower pulley is mounted proximate each of the base bars on a common drive shaft. An upper pulley is mounted proximate an upper end of each of the side plates. A strand extends from each of the lower pulleys to each of the upper pulleys, and thence to the lift shaft.

Abstract: A low level scaffold with ball screw drive is a lightweight, mobile, compact, electrically activated, self-erecting, scissor-type lifting platform. The electronic system utilizes an electric motor in direct drive arrangement with a ball screw assembly to vary the platform height from a retracted position to extended position. Electric switches limit reverse direction between the retracted and extended positions to vary platform height anywhere between the minimum and maximum heights above ground level. The design allows for transportation through household doorways and provides anti-tilt arms with threaded level mounts for use on non-level surfaces. The scaffold provides homeowners and small commercial contractors with an apparatus to perform small interior and exterior projects at elevated heights.

Abstract: A lift for a vehicle comprising a support platform for supporting a vehicle; scissor structure displaceably secured beneath the support platform for lifting the support platform and vehicle; a first and second U-shaped rod, each rod having two ends connected together at their ends for pivotal movement therabout so as to releasably secure at least one wheel of a vehicle relative the platform so as to permit a vehicle to be raised and lowered on the platform.

Abstract: A lift for a vehicle comprising a displaceable support device moveable between a first inground position to a second above ground position for supporting the vehicle, scissor mechanism associated with the displaceable support device for lifting the displaceable support structure and the vehicle, support frame member disposed inground, the scissor mechanism contained in the support frame member where the displaceable support device moves between the first and second positions.

Abstract: A low-rise vehicle lift for use above a pit having side rails rising above a working surface. The vehicle lift comprises a pair of spaced apart base units coupled to corresponding vehicle support units through a lifting means. The lifting means can be a set of legs in either a parallel or scissor configuration. The base units are typically placed parallel to one another straddling the pit and side rails, the base units and vehicle support units coupled together by an adjustment bar. The adjustment bar is attached to the vehicle support units such that a space is provided for allowing the side rails to freely move within when the lift is in a lowered position.

Abstract: Apparatus for use in lifting a vehicle from a substantially flat surface. The apparatus includes a pair of levers, each having a first lever and a second lever pivotally joined together cris-crossing one another and operable in a scissor-like motion between a collapsed position and a lifted position. A lifting platform is operatively coupled to the levers for supporting a vehicle thereon. A lifting mechanism is operably coupled to the levers for operating them between the collapsed position and the lifted position and thereby raising and lowering the lifting platform. An extendable, one-way incrementally lockable safety strut is pivotally connected to the first lever at a point along its upper portion and the other end of the safety strut is pivotally connected to the second lever at a point along its lower portion.

Abstract: An automotive lift apparatus includes a first beam support assembly and a pair of beams supported at first beam ends by the first beam support assembly, wherein each of the beams includes an outward facing beam guide portion and an inward facing guide portion. A pair of ramp/second beam support assemblies are connected to second beam ends of the beams, and each of the ramp/second beam support assemblies includes a second base. A liftable ramp is hingedly connected to the second base, and a ramp lift assembly is connected between the ramp and the second base. The first beam support assembly includes a beam support base and a beam support riser pivotally connected to the beam support base. Each of the ramp lift assemblies includes a ramp-lift hydraulic cylinder connected between the second base and the ramp. Each of the ramp/second beam support assemblies includes a riser link hingedly connected between each of the ramps and the second beam ends.

Abstract: The present invention relates to a hydraulic platform lift, in particular a motorcycle platform lift, comprising a parallelogram chassis in which on one of the two parallel lifting arms a hydraulic cylinder, supported on the sub-frame, is articulated. The task of the invention is providing such a platform lift which has a substantially better intrinsic weight/lifting-force ratio than the comparable platform lifts known from prior art.

Abstract: The invention concerns a lifting-rotating device for picking up a motor vehicle (14), in particular a passenger car, with a parallelogrammatic extension arm (11) which is articulated on a pillar (10) or a frame so as to pivot about the horizontal and at whose free end an extension arm tip (12) is articulated such that, when the parallelogrammatic extension arm (11) performs pivot movements about a horizontal, the tip (12) retains its set angle of inclination relative to the horizontal. The device further comprises a clamping unit (13) which is disposed at the free end of the extension arm tip (12) and is articulated on the latter so as to be rotatable about the horizontal relative to the extension arm tip (12).

Abstract: A platform which is raised and lowered evenly in a vertical direction only by a pair of piston activated four-bar linkages which are linked together through an endless cable or belt which will not allow one four-bar linkage to act independently of the other.

Abstract: A scissor lift has a pair of leg assemblies pivotally connected to a base. Relative movement between the legs and the base is opposed by spring assemblies that may be selectively connected to a carriage to vary the bias on the legs. A cam member secured to the leg acts on the carriage to modify the motion between the leg and the carriage to maintain a uniform vertical spring rate.

Abstract: A lifting platform for motor vehicles has at least one scissor-type framework with at least two lower scissor levers that cross each other and two upper scissor levers that cross each other. Either the upper or lower of two pivotably connected scissor levers is configured with a slot shape of a type which opens toward the other scissor lever, and this other scissor lever sinks at least most of the way into this slot when the platform lift is in its lowered position. Instead of a U-shaped slot configuration, the upper or lower of two pivotably connected scissor levers may have an L-shaped profile opening toward the other scissor lever and permitting it to sink into the crook of the L.

Abstract: The flat lift assembly has a lift platform (11), which is articulated on a base frame via a pivotable lifting arm (7). For the pivot drive of the lifting arm (7) an arm (1) and a cylinder-piston unit (5) are provided, wherein the arm (2) is acting as an articulated lever and this articulated lever is supported via an arm (2) on the base frame. The joint (9) of the arm (1) on the lifting arm (7) lies in the reeled-in position of the lifting arm (7) higher than the joint (4) of the cylinder-piston unit (5) on the arm (1). The arm (1) is formed as a pivotable two-armed lever in the form of an articulated lever, whose pivot axis lying between the free ends of the two-armed lever is pivotably supported at the base frame via at least one further arm (2) in height direction.

Abstract: An elevatable automobile turn-around system for use and association with various automobiles transport structures, the apparatus comprising: a lift having an upper segment, a lower segment and a central segment therebetween, the upper and lower segments formed in a planar configuration, the central segment including a motorized device to move the upper segment vertically upward and downward, the motorized means being powerful enough to lift the weight of an automobile; and a turntable formed in a generally planar configuration with an upper surface and a lower surface, the upper surface having coupling devices to securely retain a vehicle thereupon, the lower portion of the turntable including motorized pivot means for rotating the upper surface up to one hundred and eighty degrees, the apparatus permitting the user to elevate and rotate a vehicle as required by the particular transport structure utilized therewith.