Elevating platform assembly
AssigneeHydro Mobile
InventorBenoit Duplessis
Life of this patent
Estimating the term…
Abstract
An elevating platform assembly includes a generally vertical mast having a generally vertical rack mounted thereon. A first trolley is coupled to the mast and is moveable therealong. A drive mechanism is carried by the first trolley and includes at least one pinion in mating engagement with the rack. An elongated elevating platform extends from the mast and has a second trolley mounted adjacent one end thereof. The second trolley couples the elevating platform to the mast and is moveable along the mast. The first trolley is coupled to at least one of the second trolley and elevating platform in a manner to maintain alignment of the at least one pinion and rack when loads are placed on the elevating platform that create moments at the mast.
Claims18
An elevating platform assembly comprising:
- a generally vertical mast having a generally vertical rack mounted thereon;
- a first trolley coupled to said mast and being moveable therealong;
- a drive mechanism carried by said first trolley, said drive mechanism including at least one pinion in mating engagement with said rack;
- and
- an elongated elevating platform extending from said mast and having a second trolley mounted adjacent one end thereof, said second trolley coupling said elevating platform to said mast and being moveable along said mast, wherein said first trolley is coupled to at least one of said second trolley and said elevating platform in a manner to maintain alignment of said at least one pinion and rack when loads are placed on said elevating platform that create moments at said mast.
An elevating platform assembly comprising:
- an upright mast having a vertical rack extending along at least one side thereof;
- a motor trolley coupled to said mast, said motor trolley carrying a drive mechanism including at least one rotatable pinion in mating engagement with said at least one rack, rotation of said at least one pinion advancing said motor trolley vertically along said mast;
- an elongated elevating platform extending from said at least one side of said mast, said elevating platform including a generally horizontal work surface;
- and
- a main trolley acting between said elevating platform and said mast and being moveable vertically along said mast, wherein said motor trolley is coupled to one of said main trolley and said elevating platform in a manner so as to maintain alignment of said at least one pinion and said rack when loads are placed on said elevating platform.
Dependencies are inferred from the claim text.