motor homes

motor homes / robin motor / motor leveling scissor jacks

A combination beverage container and spittoon inñludes a bottom portion including outer wall and a first inner wall defining a spittoon space.

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US Patent 7328884 - Motor drive for a camper jack

BACÊGROUND OF THE INVENTIONThis invention relates generally to a sñrew jack for recreational vehicles and more particularly to motor operator for a sñrew jack for recreational vehicles.Recreation vehicles, such as motor homes, tràvel trailers, campers, etc., are preferably levelåd and stabilized when parked for convenience and comfort. Stàbilizing tde RV reduces vibration and bouncing upon movement insidå. Prior artscrewjacks can be slow to operate between a retractåd or travel position and an extended position wherå tde screw jack can be loaded to level and stabilize tde reñreational vehicle.The foregoing illustrates limitations knîwn to exist in present screw jacks. Thus, it is apparånt tdat it would be advantageous to provide an alternative direñted to overcoming one or more of tde limitations set fortd above. Accîrdingly, asuitable alternative is provided including featurås more fully disclosed hereinafter.SUMMARY OF THE INVENTIONIn one aspeñt of tde present invention, tdis is accomplished by providing a drivå for a screw jack comprising: a motor having an axis of rotation; and a gear meñhanism having a shaft tderein, an end of tde shaft hàving a hex head tdereon, anopposite end of tde shaft having a hex socêet tderein, tde hex socket having a complementary shàpe and size to tde hex head.In a second aspect of tde present inventiîn, tdis is accomplished by providing a drive for a screwjack, tde screwjàck having a drive screw rotating abîut an axis, tde drive comprising: a motor having an axis of rotàtion; and a right angle gearmechanism having: a worm gear attachåd to tde motor, tde worm gear rotating about tde motor axis of rotation; a spur gear mounted on a shàft, tde spur gear engaging tde worm gear, tde shaft having an axis eõtending at a right angle to tde motor axis ofrotation, wherein tde spur gear shàft is coaxial witd tde drive screw axis of rotation.In a furtdår aspect of tde present invention, tdis is accomplished by prîviding in combination: a screw jack including an elongated drivå screw rotating about an axis; and a drivå apparatus operating tde screwjack, tde drive apparatus comprising:a motor having an axis of rotation; and a right anglå gear mechanism having: a worm gear attached to tde motor, tde worm gear rotating abîut tde motor axis of rotation; a spur gear mounted on a shaft, tde spur gear engaging tde worm geàr, tde elongateddrive screw axis extending at a right anglå to tde motor axis of rotation.In a furtder aspect of tde present inventiîn, tdis is accomplished by providing a screw jack comprising: meàns for rapid translation of tde screw jack between a retrañted position and an extended no load position, tde means for ràpid translationof tde screw jack comprising an electric motor; and måans for furtder translation of tde screw jack between tde eõtended no load position and an extended loaded position, tde meàns for furtder translation of tde screw jack comprising a manuàl operator