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US 6,244,381 B1Granted
Ladder hoist device
OwnerTimothy E. Rubleinventor
Life of this patent
Estimating the term…
Abstract
A ladder hoist device for hoisting material up an extension ladder. The ladder hoist device includes a device that is able to move materials up and down an extension ladder. The device has a back plate. The back plate has a front side, a back side, a top edge and a bottom edge. A support plate supports the materials. The support plate has an edge fixedly coupled to the front side of the back plate. A mounting frame has a plurality of rollers for guiding the back plate along the rails of the ladder. A plurality of brackets rotatably couple the rollers to the back plate. Each of the brackets is coupled to each other and to the back plate. The rollers engage the ladder. A pulley system pulls the back plate up the ladder.
Claims10
A ladder hoist device, said device being able to move materials up and down an extension ladder, said device comprising:
- a back plate, said back plate having a front side and a back side, said back plate having a top edge and a bottom edge;
- a support plate for supporting the materials, said support plate having an edge fixedly coupled to said front side of said back plate;
- a mounting frame comprising:
- a plurality of rollers for guiding the back plate along a the rails of the ladder;
- a plurality of brackets for rotatable coupling said rollers to said back plate, each of said brackets being coupled to each other and to said back plate, wherein said rollers engage said ladder;
- and
- each of said brackets having a first end and a second end, each of said brackets being elongate, each of said brackets having a generally L-shaped cross-section, each of said brackets having a first portion and a second portion oriented generally perpendicular to each other, each of said first and second portions being perforated;
- said plurality of brackets further comprising:
- a first and second bracket, each of said first portions of said first and second brackets being removably coupled to said back side of said back plate, said first and second brackets being oriented generally parallel to each other such that said first portions of said first and second brackets extend towards each other, said first bracket being generally located adjacent to said top edge of said back plate, said second bracket being located generally adjacent to said bottom edge of said back plate, said first bracket having a length generally equal to a length of said second bracket;
- a third and fourth bracket extending between said first and second brackets, each end of said first portions of said third and fourth brackets being removably coupled to an end of said first and second brackets such that said first portions of said third and fourth brackets extend away from each other, said third and fourth brackets being oriented generally parallel to each other, said third and fourth brackets each having a length generally equal to the distance between said first and second brackets;
- a fifth and sixth bracket, each of said first ends of said second portions of said fifth and sixth brackets being removably secured to an end of said second portion of said third bracket such that said first portions of said fifth and sixth brackets extend away from a middle portion of said back plate, each of a pair of rollers each being rotatable coupled to said second end of said second portion of said fifth and sixth brackets, each of said rollers being directed toward said middle portion of said back plate and having a rotational axis oriented generally parallel to said back plate, said fifth and sixth brackets being oriented generally perpendicular to a plane of said back plate;
- a seventh and eighth bracket, each of said first ends of said second portions of said seventh and eighth brackets being removably secured to an end of said second portion of said fourth bracket such that said first portions of said seventh and eighth brackets extend away from a middle portion of said back plate, each of a pair of rollers each being rotatably coupled to said second end of said second portion of said seventh and eighth brackets, each of said rollers being directed toward said middle portion of said back plate and having a rotational axis oriented generally parallel to said back plate, said seventh and eighth brackets being oriented generally perpendicular to a plane of said back plate;
- and
- a ninth and tenth bracket, each of said ninth and tenth brackets having a first portion removably secured to said second portion of said second bracket such that said ninth and tenth brackets extend away from said back side of said plate, each of a pair of rollers each being rotatably coupled to said second portions of said ninth and tenth brackets, one of said rollers being between said ninth bracket and said third bracket and one of said rollers being between said tenth bracket and said fourth bracket, each of said rollers having a rotational axis oriented generally parallel to said back plate, said ninth and tenth brackets being located generally between said third and fourth brackets;
- and
- a pulley, system for pulling said back plate up said ladder.
13 more elements
A ladder hoist device for moving materials up and down an extension ladder, said device comprising:
- a back plate having a front side and a back side, said back plate having a top edge and a bottom edge;
- a support plate having an edge fixedly coupled to said front side of said back plate;
- a mounting frame comprising:
- a plurality of rollers for guiding the back plate along the rails of the ladder;
- a plurality of brackets for rotatably coupling said rollers to said back plate each of said brackets being coupled to each other and to said back plate, wherein said rollers engage said ladder;
- and
- each of said brackets having a first end and a second end, each of said brackets having a first portion and a second portion;
- said plurality of brackets further comprising:
- a first and second bracket, each of said first portions of said first and second brackets being removably coupled to said back side of said back plate, said first and second brackets being oriented generally parallel to each other such that said first portions of said first and second brackets extend towards each other, said first bracket being generally located adjacent to said top edge of said back plate, said second bracket being located generally adjacent to said bottom edge of said back plate, said first bracket having a length generally equal to a length of said second bracket;
- a third and fourth bracket extending between said first and second brackets, each end of said first portions of said third and fourth brackets being removably coupled to an end of said first and second brackets such that said first portions of said third and fourth brackets extend away from each other, said third and fourth brackets being oriented generally parallel to each other, said third and fourth brackets each having a length generally equal to the distance between said first and second brackets;
- a fifth and sixth bracket, each of said first ends of said second portions of said fifth and sixth brackets being removably secured to an end of said second portion of said third bracket such that said first portions of said fifth and sixth brackets extend away from a middle portion of said back plate, each of a pair of rollers each being rotatably coupled to said second end of said second portion of said fifth and sixth brackets, each of said rollers being directed toward said middle portion of said back plate and having a rotational axis oriented generally parallel to said back plate said fifth and sixth brackets being oriented generally perpendicular to a plane of said back plate;
- a seventh and eighth bracket, each of said first ends of said second portions of said seventh and eighth brackets being removably secured to an end of said second portion of said fourth bracket such that said first portions of said seventh and eighth brackets extend away from a middle portion of said back plate, each of a pair of rollers each being rotatably coupled to said second end of said second portion of said seventh and eighth brackets, each of said rollers being directed toward said middle portion of said back plate and having a rotational axis oriented generally parallel to said back plate, said seventh and eighth brackets being oriented generally perpendicular to a plane of said back plate;
- and
- a ninth and tenth bracket, each of said ninth and tenth brackets having a first portion removably secured to said second portion of said second bracket such that said ninth and tenth brackets extend away from said back side of said plate, each of a pair of rollers each being rotatably coupled to said second portions of said ninth and tenth brackets, one of said rollers being between said ninth bracket and said third bracket and one of said rollers being between said tenth bracket and said fourth bracket, each of said rollers having a rotational axis oriented generally parallel to said back plate, said ninth and tenth brackets being located generally between said third and fourth brackets;
- and
- a pulley system for pulling said back plate up said ladder.
13 more elements
A ladder hoist device for moving materials up and down an extension ladder having at least a first and a second portion, said device comprising:
- a back plate having a front side and a back side, said back plate having a top edge and a bottom edge;
- a support plate having an edge fixedly coupled to said front side of said back plate:
- a mounting frame comprising:
- a plurality of rollers for guiding the back plate alone the rails of the ladder;
- a plurality of brackets for rotatably coupling said rollers to said back plate, each of said brackets being coupled to each other and to said back plate, wherein said rollers engage said ladder;
- and
- each of said brackets having a first end and a second end, each of said brackets having a first portion and a second portion;
- said plurality of brackets further comprising:
- a first and second bracket, each of said first portions of said first and second brackets being removably coupled to said back side of said back plate, said first and second brackets being oriented generally parallel to each other such that said first portions of said first and second brackets extend towards each other said first bracket being generally located adjacent to said top edge of said back plate said second bracket being located generally adjacent to said bottom edge of said back plate, said first bracket having a length generally equal to a length of said second bracket;
- a third and fourth bracket extending between said first and second brackets, each end of said first portions of said third and fourth brackets being removably coupled to an end of said first and second brackets such that said first portions of said third and fourth brackets extend away from each other, said third and fourth brackets being oriented generally parallel to each other, said third and fourth brackets each having a length generally equal to the distance between said first and second brackets;
- a fifth and sixth bracket, each of said first ends of said second portions of said fifth and sixth brackets being removably secured to an end of said second portion of said third bracket such that said first portions of said fifth and sixth brackets extend away from a middle portion of said back plate, each of a pair of rollers each being rotatably coupled to said second end of said second portion of said fifth and sixth brackets, each of said rollers being directed toward said middle portion of said back plate and having a rotational axis oriented generally parallel to said back plate, said fifth and sixth brackets being oriented generally perpendicular to a plane of said back plate;
- a seventh and eighth bracket, each of said first ends of said second portions of said seventh and eighth brackets being removably secured to an end of said second portion of said fourth bracket such that said first portions of said seventh and eighth brackets extend away from a middle portion of said back plate, each of a pair of rollers each being rotatably coupled to said second end of said second portion of said seventh and eighth brackets, each of said rollers being directed toward said middle portion of said back plate and having a rotational axis oriented generally parallel to said back plate, said seventh and eighth brackets being oriented generally perpendicular to a plane of said back plate;
- and
- a ninth and tenth bracket, each of said ninth and tenth brackets having a first portion removably secured to said second portion of said second bracket such that said ninth and tenth brackets extend away from said back side of said plate, each of a pair of rollers each being rotatably coupled to said second portions of said ninth and tenth brackets, one of said rollers being between said ninth bracket and said third bracket and one of said rollers being between said tenth bracket and said fourth bracket, each of said rollers having a rotational axis oriented generally parallel to said back plate, said ninth and tenth brackets being located generally between said third and fourth brackets;
- a pulley system for pulling said back plate up said ladder;
- and
- guides for smoothing the transition from the first portion of the ladder to the second portion of the ladder, said guides being removably placed over a juncture of the first and second portions of the ladder.
14 more elements
Dependencies are inferred from the claim text.