Two-direction expandable mobile house

Abstract

A two-direction expandable mobile house can be configured, for example, as a recreational vehicle or similar type of mobile home. The expandable mobile house can include a main body structure, two expandable structures including sliding wall panels, floor panels with hinges, and expansion mechanisms. The outside walls can be driven out by some hydraulic rods or by other mechanisms that can provide the same function connection linkages. The expandable floor panels can be stowed folded vertically. They can be connected to the main body frame with hinges. Small side wall panels can be designed to slide out from the main body frame. A flexible roof is able to be folded back into the main frame. The roof can include two inner boards for covering the expanded rooms.

What is claimed is: 
     
         1 . An expandable structure transformable between a stowed state and an expanded state, the expandable structure comprising:
 a main structure;   a first expanded section, the first expansion section expandable outward in a first direction from the main structure;   a second expanded section, the second expansion section expandable outward, in a second direction different from the first direction, from the main structure; and   a third expanded section created at a corner intersection of the first expanded section and the second expanded section, the third expanded section formed when the expanded structure is in an expanded state.   
     
     
         2 . The expandable structure of  claim 1 , wherein the first expanded section and the second expanded section share a corner of the main structure in the stowed state. 
     
     
         3 . The expandable structure of  claim 1 , wherein the second direction is orthogonal to the first direction. 
     
     
         4 . The expandable structure of  claim 1 , further comprising a roof structure expandable in the first direction and in the second direction. 
     
     
         5 . The expandable structure of  claim 4 , further comprising:
 a first roof member covering a main structure in the expanded state;   a second roof member covering the first expanded section in the expanded state;   a third roof member covering the second expanded section in the expanded state; and   a fourth roof member covering the third expanded section in the expanded state, wherein:   the second roof member at least partially nests with the first roof member in the stowed state;   the third roof member at least partially nests with the first roof member in the stowed state; and   the fourth roof member at least partially nests with the second roof member in the stowed state.   
     
     
         6 . The expandable structure of  claim 5 , wherein:
 the third roof member is disposed within a slot formed in the first roof member in the stowed state; and   the fourth roof member is disposed within a slot formed in the second roof member in the stowed state.   
     
     
         7 . The expandable structure of  claim 6 , wherein a first inside upper edge of the third roof member forms a waterproof interconnection with a second inside upper edge of the fourth roof member. 
     
     
         8 . The expandable structure of  claim 7 , wherein the waterproof interconnection includes a first pivoting member formed along the first inside upper edge of the third roof member that engages with a second pivoting member formed along the second inside upper edge of the fourth roof member. 
     
     
         9 . The expandable structure of  claim 5 , wherein the second roof member is attached to an outer wall of the first expanded section, the second roof member deploying and stowing when the outer wall of the first expanded section deploys and stows. 
     
     
         10 . The expandable structure of  claim 5 , further comprising:
 a track formed along a widthwise extent along a bottom of the first roof member;   an engagement member on an inside end of the second roof member, wherein   the engagement member engages with the track to slide therealong during transformation between the stowed state and the expanded state.   
     
     
         11 . The expandable structure of  claim 5 , wherein the first roof member and the second roof member form a gable roof having a peak. 
     
     
         12 . The expandable structure of  claim 1 , wherein:
 a floor member of each of the first expanded section and the second expanded section are pivotably attached to the main structure on an interior end thereof and are pivotably attached to respective outer walls of respective first and second expanded sections; and   each floor member slidingly engages respective outer walls of respective first and second expanded sections.   
     
     
         13 . The expandable structure of  claim 12 , further comprising a compact floor portion stored within the floor member of the first expanded section. 
     
     
         14 . The expandable structure of  claim 13 , wherein the compact floor is expandable to form a floor surface of the third expanded section. 
     
     
         15 . The expandable structure of  claim 1 , wherein at least one side wall of at least one of the first expanded section, the second expanded section or the third expanded portion is slidable along a track formed in a floor surface to position the side wall in the expanded state. 
     
     
         16 . The expandable structure of  claim 15 , wherein the at least one side wall includes a rack that interfaces with a driven gear to move the side wall between the stowed state and the expanded state. 
     
     
         17 . An expandable structure transformable between a stowed state and an expanded state, the expandable structure comprising:
 a main structure;   a first expanded section, the first expansion section expandable outward in a first direction from the main structure;   a second expanded section, the second expansion section expandable outward, in a second direction orthogonal to the first direction, from the main structure;   a third expanded section created at a corner intersection of the first expanded section and the second expanded section, the third expanded section formed when the expanded structure is in an expanded state;   a first roof member covering a main structure in the expanded state;   a second roof member covering the first expanded section in the expanded state;   a third roof member covering the second expanded section in the expanded state; and   a fourth roof member covering the third expanded section in the expanded state, wherein:   the second roof member at least partially nests with the first roof member in the stowed state;   the third roof member at least partially nests within a slot in the first roof member in the stowed state; and   the fourth roof member at least partially nests within a slot the second roof member in the stowed state.   
     
     
         18 . The expandable structure of  claim 17 , wherein:
 the first roof member and the second roof member form a first gable roof portion; and   the third roof member and the fourth roof member form a second gable roof portion.   
     
     
         19 . An expandable structure transformable between a stowed state and an expanded state, the expandable structure comprising:
 a main structure;   a first expanded section, the first expansion section expandable outward in a first direction from the main structure;   a second expanded section, the second expansion section expandable outward, in a second direction orthogonal to the first direction, from the main structure;   a third expanded section created at a corner intersection of the first expanded section and the second expanded section, the third expanded section formed when the expanded structure is in an expanded state;   a first floor member forming a first expanded floor surface in the first expanded section when the expandable structure is in the expanded state;   a second floor member forming a second expanded floor surface in the second expanded section when the expandable structure is in the expanded state; and   a compact floor portion stored within the first floor member of the first expanded section, wherein   the first floor portion is pivotably attached to the main structure on an interior end thereof and is pivotably attached to an outer wall of the first expanded sections;   the second floor portion is pivotably attached to the main structure on an interior end thereof and is pivotably attached to an outer wall of the second expanded sections;   each of the first and second floor portions slidingly engages respective outer walls of respective first and second expanded sections; and   the compact floor is expandable to form a third floor surface of the third expanded section.   
     
     
         20 . The expandable structure of  claim 19 , wherein:
 at least one side wall of at least one of the first expanded section, the second expanded section or the third expanded portion is slidable along a track formed in respective first, second or third floor surfaces to position the side wall in the expanded state; and   the at least one side wall includes a rack that interfaces with a driven gear to move the side wall between the stowed state and the expanded state.