Screw drive room slideout assembly

A room slideout assembly comprising, in combination:

• a motor having a motor output pinion rotatable about a first axis;
• a first drive screw rotatable about the first axis;
• a first 90 degree gearbox operatively connecting the motor to the first drive screw, wherein the motor urges the first drive screw to rotate, the first 90 degree gearbox having a first output member rotatable with the first drive screw about the first axis and a second output member which rotates perpendicular to the first drive screw;
• a drive nut internally receiving the drive screw, wherein rotation of the drive screw urges the nut to move along the first axis;
• and
• an elongate ram having side walls defining a central opening, the ram being adapted to be attached to a sliding floor, and movable between extended and retracted positions in response to rotation of the first drive screw;
• wherein the drive nut and the drive screw are both positioned within the central opening of the elongate ram when the ram is in the retracted position.

A room slideout assembly comprising, in combination:

• a motor;
• a first 90 degree gearbox comprising
• a first gear operatively connected to the motor,
• a second gear meshed with the first gear;
• and
• an output member meshed with the first gear, coaxial with the second gear and adapted to rotate in response to a manual override assembly;
• a cross shaft attached to the second gear;
• a second 90 degree gearbox comprising
• a third gear, and
• a fourth gear meshed with the third gear and attached to the cross shaft;
• a first drive screw operatively connected to the first 90 degree gearbox, rotatable by operation of the motor;
• a second drive screw operatively connected to the second 90 degree gearbox, rotatable by operation of the motor;
• an elongate first ram, adapted to be attached to a sliding floor, the first ram being movable in response to rotation of the first drive screw;
• and
• an elongate second ram, adapted to be attached to a sliding floor, the second ram being movable in response to rotation of the second drive screw.

A room slideout assembly comprising, in combination:

• a motor;
• a drive screw operatively connected to the motor and rotatable by the motor;
• an elongate ram attached to a sliding floor, the ram being movable between retracted and extended positions in response to rotation of the drive screw;
• a structural frame provided with a pair of elongate beams extending perpendicular to the ram;
• a fixed floor mounted between the structural frame and the sliding floor, provided with an elongate channel, wherein the ram is positioned within the elongate channel and above the structural frame when the ram is in the retracted position, and the fixed floor is positioned entirely below the sliding floor.

A room slideout assembly comprising, in combination:

• a motor;
• a speed reducing planetary gearbox rotatable by the motor and provided with a rotatable gearbox output;
• a 90 degree gearbox comprising at least first and second meshed bevel gears, wherein the first bevel gear is operatively connected to the rotatable gearbox output and one of the first and second bevel gears is rotatable about a first axis;
• and
• an elongate ram, adapted to be attached to a sliding floor, wherein the ram is operably connected to the planetary gearbox by a drive screw so that rotation of the planetary gearbox output urges the ram to translate along the first axis between extended and retracted positions;
• a support frame and an outer housing attached to the support frame and provided with a central opening, wherein the drive screw is positioned entirely within the central opening of the outer housing and the elongate ram has a length at least half the length of the outer housing.