Balanced cantilevered feeding apparatus
AssigneeSky-Line Cranes & Technologies Ltd.
InventorAviv Carmel
Life of this patent
Estimating the term…
Abstract
A balanced cantilevered feeding apparatus for coupling with a jib, and a complementary method for its operation, configured to facilitate depositing and removing of a load through an opening in a building. The apparatus includes two spaced apart upright hoisting assemblies disposed on the jib, and a fly beam hoisted, balanced, and selectively positioned along a lateral axis by the two hoisting assemblies. A load securing member is mounted on a cantilevered extension portion of the fly beam, wherein the member extends beyond one of the two hoisting assemblies toward the building, and a counterweight is connected to the fly beam in the vicinity of another of the two hoisting assemblies.
Claims12
A balanced cantilevered feeding apparatus for coupling with a jib, configured to facilitate depositing and removing of a load through an opening in a building, the balanced cantilevered feeding apparatus comprising:
- two spaced apart upright hoisting assemblies disposed on said jib;
- a fly beam hoisted, balanced, and selectively positioned along a lateral axis by said two hoisting assemblies, said fly beam comprising:
- at least one cantilevered extension portion extending beyond one of said two hoisting assemblies toward said building;
- and
- a load securing member mounted on said cantilevered extension portion positioned outwardly from said one of said two hoisting assemblies, said load securing member operational for engaging and supporting said load, allowing depositing and removing said load through an opening in said building when said fly beam is vertically aligned with said opening;
- and
- a counterweight connected to said fly beam in the vicinity of another of said two hoisting assemblies,
- wherein said two hoisting assemblies are configured to selectively position said fly beam along a lateral axis in a balanced position by at least one of:
- the hoisting assemblies that slide over said jib;
- the hoisting assemblies that are adjustably spaced apart along said jib;
- and
- the hoisting assemblies that change hoist height when said jib is tilted to change its inclination and a lateral distance between said hoisting assemblies,
- wherein, if the lateral distance between said two hoisting assemblies is changing, said fly beam is adjustable in length to accommodate said changing.
A method for facilitating depositing of a load through an opening in a building, said method comprising the procedures of:
- hoisting, while maintaining balanced, a fly beam by two spaced apart upright hoisting assemblies disposed on a jib;
- selectively attaching said load to a load securing member mounted on a cantilevered portion of said fly beam, said cantilevered portion extends beyond one of said two hoisting assemblies toward said building while connecting a counterweight in the vicinity of another of said two hoisting assemblies;
- vertically aligning said fly beam with said opening in said building while maintaining said fly beam balanced, by vertically repositioning said fly beam by said two upright hoisting assemblies;
- and
- laterally positioning said fly beam along a lateral axis by said two hoisting assemblies, while maintaining said fly beam balanced;
- for inserting said cantilevered portion into said opening of said building by at least one of:
- sliding said two hoisting assemblies over said jib;
- adjustably spacing apart said two hoisting assemblies along said jib;
- and
- changing hoist height when said jib is tilted to change its inclination and the lateral distance between said two hoisting assemblies;
- and
- adjusting said fly beam in length if the lateral distance between said two hoisting assemblies is changing to accommodate said changing;
- and
- selectively removing said load when deposited in said building, from said load securing member.
Dependencies are inferred from the claim text.