Rollable roof mobile house

Abstract

An expandable house that has a roof that can be adjusted to a set angle. The house can be expanded to more than three times the space as compared to its original size when it is extended. The unique design in the method of making an expandable house is that the roof is very flexible, so it can be angled whenever it is required. When the house is retracted, the roof is stored on the side of the house, so the height of the house can be reduced in its compact form. This house can expand in two opposite directions. The walls and floors of the expandable rooms are stored on the sides of the main structure where the house expands, behind the stored roof. The entire expanding and retracting processes are aided with electric motors, so no manual labor is required.

What is claimed is: 
     
         1 . An expandable structure comprising:
 a main structure having a main structure roof;   a first expansion section, the first expansion section expandable outward in a first direction from a first side of the main structure; and   a rollable roof movable from a stowed position, with the rollable roof vertically disposed adjacent the first side of the expandable structure, to a use position, with the rollable roof disposed above the first expansion section, the rollable roof formed in multiple pivotable segments that change direction from an upward movement to an inward movement during movement of the rollable roof from the stowed position to the use position.   
     
     
         2 . The expandable structure of  claim 1 , further comprising:
 a second expansion section, the second expansion section expandable outward in a second direction, opposite the first direction, from a second, opposite side of the main structure; and   a second rollable roof movable from the stowed position, with the second rollable roof vertically disposed adjacent the second side of the expandable structure, to the use position, with the second rollable roof disposed above the second expansion section, the second rollable roof formed in multiple pivotable segments that change direction from an upward movement to an inward movement during movement of the second rollable roof from the stowed position to the use position.   
     
     
         3 . The expandable structure of  claim 1 , further comprising:
 a moveable outer end wall movable from the stowed position, sandwiched between the rollable roof structure and the main structure, to the use position, away from the main structure to form an expansion section between the movable outer end wall and the main structure.   
     
     
         4 . The expandable structure of  claim 3 , further comprising pivotable front and rear extension section walls pivotably attached to the main structure, wherein:
 the pivotable front and rear extension section walls sandwiched between the main structure and the movable outer end wall in the stowed position; and   the pivotable front and rear extension section walls pivoting outward in the use position to extend between the main structure and the movable outer end wall to provide front and rear walls of the expansion section.   
     
     
         5 . The expandable structure of  claim 4 , wherein one of the pivotable front and rear extension section walls is longer than an other one of the pivotable front and rear extension section walls, permitting the pivotable front and rear extension section walls to stack at least partially on top of each other in the stowed position. 
     
     
         6 . The expandable structure of  claim 4 , further comprising a floor member, wherein:
 the floor member sandwiched between the movable outer end wall and the pivotable front and rear extension section walls in the stowed position; and   the floor pivotable at a proximate end thereof with respect to the main structure to cause the floor to slide down the movable outer end wall when the movable outer end wall is moved outward into the use position.   
     
     
         7 . The expandable structure of  claim 6 , further comprising a locking bracket slidable along a protrusion formed vertically along the movable outer end wall, the locking bracket pivotably attached to a distal end of the floor. 
     
     
         8 . The expandable structure of  claim 7 , wherein the locking bracket is horizontally restrained to the protrusion to prevent horizontal movement of the locking bracket. 
     
     
         9 . The expandable structure of  claim 3 , wherein the main structure roof is attached to the rollable roof, such that when the movable outer end wall is moved toward the use position, the rollable roof curves over a top edge of the movable outer end wall to cover the expansion section. 
     
     
         10 . The expandable structure of  claim 3 , further comprising a vertical track in an outer portion of the movable outer end wall, the track permitting sliding of the rollable roof therein as the movable outer end wall moves between the use and the stowed positions. 
     
     
         11 . The expandable structure of  claim 1 , wherein the main structure roof and the rollable roof, in the use position, are movable between a flattened state and a sloped state. 
     
     
         12 . The expandable structure of  claim 11 , further comprising a main structure roof riser operable to lift the main structure roof upward and fill in a space between the front and rear sides of the main structure and the main structure roof. 
     
     
         13 . The expandable structure of  claim 12 , further comprising a wedge roof filler that is pivotably attached to the main structure and provides structure between the pivotable front and rear extension walls and the rollable roof when in the use position. 
     
     
         14 . The expandable structure of  claim 13 , wherein, in the sloped state, the main structure roof and the rollable roof have a continuous pitch. 
     
     
         15 . An expandable structure comprising:
 a main structure having a main structure roof;   a first expansion section, the first expansion section expandable outward in a first direction from a first side of the main structure;   a rollable roof movable from a stowed position, with the rollable roof vertically disposed adjacent the first side of the expandable structure, to a use position, with the rollable roof disposed above the first expansion section, the rollable roof formed in multiple pivotable segments that change direction from an upward movement to an inward movement during movement of the rollable roof from the stowed position to the use position; and   a moveable outer end wall movable from the stowed position, sandwiched between the rollable roof structure and the main structure, to the use position, away from the main structure to form an expansion section between the movable outer end wall and the main structure, wherein   the main structure roof and the rollable roof, in the use position, are movable between a flattened state and a sloped state when the expandable structure is in the use position.   
     
     
         16 . The expandable structure of  claim 15 , further comprising:
 a main structure roof riser operable to lift the main structure roof upward and fill in a space between the front and rear sides of the main structure and the main structure roof; and   a wedge roof filler that is pivotably attached to the main structure and provides structure between the pivotable front and rear extension walls and the rollable roof when in the use position.   
     
     
         17 . The expandable structure of  claim 16 , wherein the main structure roof is attached to the rollable roof, such that when the movable outer end wall is moved toward the use position, the rollable roof curves over a top edge of the movable outer end wall to cover the expansion section. 
     
     
         18 . The expandable structure of  claim 15 , further comprising pivotable front and rear extension section walls pivotably attached to the main structure, wherein:
 the pivotable front and rear extension section walls sandwiched between the main structure and the movable outer end wall in the stowed position; and   the pivotable front and rear extension section walls pivoting outward in the use position to extend between the main structure and the movable outer end wall to provide front and rear walls of the expansion section.   
     
     
         19 . An expandable structure comprising:
 a main structure having a main structure roof;   a first expansion section, the first expansion section expandable outward in a first direction from a first side of the main structure;   a first rollable roof movable from a stowed position, with the first rollable roof vertically disposed adjacent the first side of the expandable structure, to a use position, with the first rollable roof disposed above the first expansion section, the first rollable roof formed in multiple pivotable segments that change direction from an upward movement to an inward movement during movement of the first rollable roof from the stowed position to the use position;   a second expansion section, the second expansion section expandable outward in a second direction, opposite the first direction, from a second, opposite side of the main structure;   a second rollable roof movable from the stowed position, with the second rollable roof vertically disposed adjacent the second side of the expandable structure, to the use position, with the second rollable roof disposed above the second expansion section, the second rollable roof formed in multiple pivotable segments that change direction from an upward movement to an inward movement during movement of the second rollable roof from the stowed position to the use position;   first and second moveable outer end walls movable from the stowed position, sandwiched between respective first and second rollable roofs and the first and second sides of the main structure, to the use position, away from the main structure to form first and second expansion sections between the movable first and second outer end walls and the main structure; and   first and second sets of pivotable front and rear extension section walls pivotably attached to the main structure at respective first and second sides of the main structure, wherein   each set of the pivotable front and rear extension section walls are sandwiched between the main structure and the respective first and second movable outer end walls in the stowed position;   the pivotable front and rear extension section walls pivoting outward in the use position to extend between the main structure and the first and second movable outer end wall to provide front and rear walls of the first and second expansion sections; and   the main structure roof and the rollable roof, in the use position, are movable between a flattened state and a sloped state when the expandable structure is in the use position.   
     
     
         20 . The expandable structure of  claim 19 , wherein the main structure roof is attached to the first and second rollable roofs, such that when the movable outer end wall is moved toward the use position, the rollable roof curves over a top edge of the movable outer end wall to cover the respective expansion section.