초록 ▼

A lift dolly is comprised of a first castor-based platform and a second castor-based platform. Each platform is secured to an object to be lifted such that when so secured, the first platform extends diagonally upwardly and the second platform extends diagonally upwardly and terminates below the fir

A lift dolly is comprised of a first castor-based platform and a second castor-based platform. Each platform is secured to an object to be lifted such that when so secured, the first platform extends diagonally upwardly and the second platform extends diagonally upwardly and terminates below the first platform. Downward articulation of the first platform causes lever lifting of its end of the object and also engages and causes downward articulation of the second platform which lever lifts its end of the object. Through continued lifting the lever fulcrum moves toward center increasing the mechanical advantage of the device.

대표청구항 ▼

[ I claim:] [11.] A lift dolly for selectively lifting and transporting an object, the lift dolly comprising:a first frame including first, second and third elongated members, wherein said second and third elongated members of said first frame extend away from said first elongated member of said fir

[ I claim:] [11.] A lift dolly for selectively lifting and transporting an object, the lift dolly comprising:a first frame including first, second and third elongated members, wherein said second and third elongated members of said first frame extend away from said first elongated member of said first frame;a second frame including first, second and third elongated members, wherein said second and third elongated members of said second frame extend away from said first elongated member of said second frame and toward said first elongated member of said first frame;said first elongated member of said first frame being spaced apart from said first elongated member of said second frame;a first wheel system extending downwardly from said first frame and a second wheel system extending downwardly from said second frame;first and second connection devices for connecting said first frame to the object;third and fourth connection devices for connecting said second frame to the object;a frame securing device for releasably securing said first frame to said second frame;said first frame including an actuation portion for being downwardly articulated so that when the actuation portion is downwardly articulated said first and second frames move relative to one another and lift the object off of a ground surface so that the object becomes supported on the ground surface by said first and second wheel systems; andwherein at least a portion of one of said second and third elongated members of said first frame is located at an elevation greater than a part of said second frame when the object is in a position lifted off of the ground and supported by said first and second wheel systems.