초록 ▼

A lifting apparatus including a beam assembly, a lifter affixed to a surface of the beam assembly for lifting weighted objects toward or away from the beam assembly, a cable extending from the lifter, a first leg pivotally connected to one side of the lifter on the beam assembly and a second leg piv

A lifting apparatus including a beam assembly, a lifter affixed to a surface of the beam assembly for lifting weighted objects toward or away from the beam assembly, a cable extending from the lifter, a first leg pivotally connected to one side of the lifter on the beam assembly and a second leg pivotally connected to an opposite side of the lifter on the beam assembly. The first and second legs are pivotally movable between a first position in parallel relationship to the beam assembly and a second position perpendicular to the beam assembly. Each of the first and second legs has a foot member affixed thereto opposite the beam assembly. The beam assembly includes a first beam member and a second beam member in spaced parallel relationship to the first beam member. Each of the first and second legs also includes a bracket member which is detachably affixed to the first and second beam members, a first leg portion pivotally connected to the bracket member and a second leg portion in telescoping relationship to the first leg portion. The distance between the legs is adjustable along the length of the beam assembly. The length of each of the legs is adjustable by extending or retracting one leg portion with respect to the other leg portion.

대표청구항 ▼

[ I claim:] [1.] A lifting apparatus comprising:a beam assembly;a lifting means affixed to a surface of said beam assembly, said lifting means for lifting weighted objects toward or away from said beam assembly, said lifting means having a cable extending therefrom;a first leg pivotally connected to

[ I claim:] [1.] A lifting apparatus comprising:a beam assembly;a lifting means affixed to a surface of said beam assembly, said lifting means for lifting weighted objects toward or away from said beam assembly, said lifting means having a cable extending therefrom;a first leg pivotally connected to one side of said lifting means on said beam assembly, said first leg pivotable between a first position in parallel relationship to said beam assembly and a second position perpendicular to said beam assembly, said first leg having a foot member affixed thereto opposite said beam assembly;a second leg pivotally connected to an opposite side of said lifting means on said beam assembly, said second leg pivotable between a first position in parallel relationship to said beam assembly and a second position perpendicular to said beam assembly, said second leg having a foot member affixed thereto opposite said beam assembly, each of the foot members of said first and second legs comprising:a transverse beam affixed to an end of the leg opposite the beam assembly, said transverse beam being an angle bar having an upwardly extending flange portion, said flange portion having a notch formed therein; anda pair of wheels rotatably connected to said transverse beam; anda cross support detachably engaging the notch of said flange portion of said angle bar and extending between the foot member of said first leg and the foot member of said second leg in generally parallel relationship to said beam assembly.