초록 ▼

A case having at least one wheel mounted adjacent the case\s floor, that wheel being retractable interiorly of the case into a storage position and extendable exteriorly of the case below the floor where the case can roll on the wheel. One feature is that a retract operator connected to the wheel is

A case having at least one wheel mounted adjacent the case\s floor, that wheel being retractable interiorly of the case into a storage position and extendable exteriorly of the case below the floor where the case can roll on the wheel. One feature is that a retract operator connected to the wheel is manually movable in one of generally parallel and normal directions relative to the floor in order to retract the wheel into the storage position, and a separate extend operator also connected to the wheel is manually movable in the other of the generally parallel and normally directions relative to the floor in order to extend the wheel into the use position. Another feature is that a single spring motor is connected with both the retract and extend operator in order to continually bias both those operators toward one of each operator\s first and second operational positions. A third feature includes a pivotable drum to which the wheel is connected by a crank arm, the drum moving the wheel between storage and use positions in response to the operators and a drum spring motor, and a latch cooperable with the drum to hold it in that position to which the drum is not continually spring biased, that latch being continuously being biased toward the latching position by that same spring motor.

대표청구항 ▼

A container comprising a case with a floor, at least one wheel mounted to said case adjacent said floor, said wheel being retractable interiorly of said case into a storage position and extendable exteriorly of said case into a use position where said case can roll on said wheel, and said wheel bein

A container comprising a case with a floor, at least one wheel mounted to said case adjacent said floor, said wheel being retractable interiorly of said case into a storage position and extendable exteriorly of said case into a use position where said case can roll on said wheel, and said wheel being continually biased to the storage position a retract operator operably connected to said wheel, said retract operator being manually movable in one of generally parallel and normal directions relative to said floor in order to cause said wheel to retract into said storage position, an extend operator operably connected to said wheel, said extend operator being manually movable in the other of said generally parallel and normal directions relative to said floor in order to cause said wheel to extend into said use position, both of said retract and extend operators being manually accessible and operable from exteriorly of said case, a wheel mount assembly connected to said case, said wheel mount assembly being operable to retract and extend said wheel between storage and use positions, said assembly comprising a drum and a crank arm connected to said drum, said crank arm also being connected to said wheel, pivotable motion of said drum relative to the drum\s axis causing said wheel to move between wheel storage and use positions, a drum motor connected with said drum, said drum motor operating to continually bias said drum to one of the wheel storage and use positions, and a stop having one component partially carried on said drum and having another component partially carried by said latch assembly, said stop components cooperating to locate said drum in that position to which it is biased by said drum motor, and a latch assembly connected to said case, said latch assembly being operable to latch said wheel mount assembly in an attitude where said wheel is located in one of its storage and use positions, said latch assembly comprising a latch cooperable with said drum to hold said drum in that one of wheel storage and use positions to which said drum is not continually biased, and a latch motor connected with said latch, said latch motor continually biasing said latch to that position at which it will cooperate with said drum to hold said drum in that position to which said drum is not continually biased whenever said drum is moved into that position.