Abrégé

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).

Classes IPC  ?

• B66F 11/04 - Dispositifs de levage spécialement adaptés à des buts particuliers, non prévus ailleurs pour plates-formes ou cabines mobiles, p. ex. sur des véhicules, permettant à des ouvriers d'occuper toute position convenable pour exécuter les travaux demandés
• B66F 7/06 - Châssis de levage, p. ex. pour lever des véhiculesAscenseurs à tablier à tabliers supportés par des leviers pour un mouvement vertical

Abrégé

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.

Classes IPC  ?

• B66F 3/10 - Dispositifs, p. ex. crics, adaptés pour lever des charges d'un mouvement continu à vis à manchons télescopiques
• B66F 7/14 - Châssis de levage, p. ex. pour lever des véhiculesAscenseurs à tablier à tabliers supportés directement par des crics par des crics mécaniques à vis
• B66F 11/04 - Dispositifs de levage spécialement adaptés à des buts particuliers, non prévus ailleurs pour plates-formes ou cabines mobiles, p. ex. sur des véhicules, permettant à des ouvriers d'occuper toute position convenable pour exécuter les travaux demandés

Abrégé

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.

Classes IPC  ?

• B66F 7/14 - Châssis de levage, p. ex. pour lever des véhiculesAscenseurs à tablier à tabliers supportés directement par des crics par des crics mécaniques à vis
• B66F 11/04 - Dispositifs de levage spécialement adaptés à des buts particuliers, non prévus ailleurs pour plates-formes ou cabines mobiles, p. ex. sur des véhicules, permettant à des ouvriers d'occuper toute position convenable pour exécuter les travaux demandés
• B66F 3/10 - Dispositifs, p. ex. crics, adaptés pour lever des charges d'un mouvement continu à vis à manchons télescopiques