Abstract

A lifting device construction (1), comprising a walking platform (6), a working platform (7) connected thereto with vertical members, and a hoist mechanism (8) for maneuvering an assembly made up by the working platform (7) and the walking platform (6) together, whereby, when the lifting device construction (1) is in its bottom position, the hoist mechanism (8), regarding its main components, is accommodated between the working platform (7) and the walking platform (6).

IPC Classes  ?

• B66F 11/04 - Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
• B66F 7/06 - Lifting frames, e.g. for lifting vehiclesPlatform lifts with platforms supported by levers for vertical movement

Abstract

Power unit that can be telescopically lengthened /shortened and performs linear movement which power unit comprises cylindrical parts (1 - 3) moving telescopically within each other in which case the mentioned parts are equipped with at least external or internal threads in such a way that the mentioned parts form a power unit that can be lengthened /shortened when the parts are being rotated in relation to each other and that at least one part (3) of the mentioned parts (1 - 3) is locked to be non-rotating or locked to rotate in a different way than the part (1) of the mentioned parts (1 - 3) to which part a rotating producing movement to the power unit is arranged. In order to reduce the construction weight of the power unit the mentioned parts (1 - 3) are made of plastic and of the mentioned parts the inner diameter (d) of the part (3) having the smallest diameter is over 25 % of the useful height (H) produced by the mentioned smallest part.

IPC Classes  ?

• B66F 3/10 - Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw-operated with telescopic sleeves
• B66F 7/14 - Lifting frames, e.g. for lifting vehiclesPlatform lifts with platforms supported directly by jacks by mechanical jacks screw-operated
• B66F 11/04 - Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations

Abstract

Lifting/lowering apparatus, such as a plane that can be lifted, a table or a lifting platform construction, equipped with at least two adjacent lifting mechanisms that can be extended telescopically which lifting/lowering apparatus comprises a lower frame (1), further a horizontal upper frame (7) supported by which a plane, such as a working plane (5), (6) is adjusted and comprises a lifting mechanism adjusted between the mentioned lower frame and upper frame with the help of which lifting mechanism the upper frame (7) can be lifted and lowered in relation to the lower frame (1) and that the lifting mechanism comprises adjacent pillars (2, 3, 4) in which case each pillar is formed of cylinder parts (2 - 4) that can be moved telescopically in relation to each other which cylinder parts are attached to each other with the help of threads in such a way that the rotation of the parts (2 - 4) in relation to each other changes the height of the mentioned pillars. In order to reduce the construction weight the cylinder parts (2 - 4) are made of plastic and in order to improve the receiving of the sideway loadings the inner diameter of the cylinder part (4) having the smallest diameter is over 200 mm.

IPC Classes  ?

• B66F 7/14 - Lifting frames, e.g. for lifting vehiclesPlatform lifts with platforms supported directly by jacks by mechanical jacks screw-operated
• B66F 11/04 - Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
• B66F 3/10 - Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw-operated with telescopic sleeves