Expandable housing structure with accordion walls

An expandable structure comprising:

• a main structure;
• a first expansion section, the first expansion section expandable outward in a first direction from the main structure;
• side walls of the first expansion section formed from a plurality of wall panels storable in a stacked, accordion arrangement in a retracted configuration;
• and
• a linkage system interconnecting the plurality of wall panels, the linkage system including a set of gear systems, each gear system of the set of gear systems adjoining each abutting side faces of the plurality of wall panels, wherein
• each gear system of the set of gear systems includes a first gear having first teeth that engage with second teeth of a second gear;
• the first gear is attached to a first one of the wall panels and the second gear is attached to a second one of the wall panels, the first one being adjacent the second one;
• and
• the first gear and the second gear of each of the gear systems of the set of gear systems are aligned along a plurality of axial axes, each of the plurality of axial axes are parallel during movement between the retracted configuration and a fully opened configuration.

An expandable structure comprising:

• a main structure;
• a first expansion section, the first expansion section expandable outward in a first direction from the main structure;
• side walls of the first expansion section formed from a plurality of wall panels storable in a stacked, accordion arrangement in a retracted configuration;
• a push arm, the push arm operable to move an innermost one of the wall panels from the retracted configuration to the fully opened configuration;
• and
• a linkage system interconnecting the plurality of wall panels, the linkage system including a set of gear systems, each gear system of the set of gear systems adjoining each abutting side faces of the plurality of wall panels, wherein:
• the linkage system include linkages extend between adjacent ones of the set of gear systems;
• the linkages extend outside of the wall panels when the side walls are in a fully opened state and the linkages at least partially fit into recesses formed in the plurality of wall panels when the side walls are in the retracted configuration;
• each gear system of the set of gear systems includes a first gear having first teeth that engage with second teeth of a second gear;
• the first gear is attached to a first one of the wall panels and the second gear is attached to a second one of the wall panels, the first one being adjacent the second one;
• and
• movement of the innermost one of the wall panels from the retracted configuration to the fully opened configuration causes, via the linkage system, remaining ones of the plurality of wall panels to uniformly open.