Slidable room assembly for recreational vehicles

A slidable room having an exterior wall including a top edge and side edges for use with a housing assembly having a square opening with a top edge and side edges, comprising:

• a stationary main frame assembly affixed to the housing assembly, including a pair of spaced hollow, rectangular, elongated support members held in a fixed parallel relationship, and a transmission assembly fixedly interposed between the support members;
• a slidable support assembly coupled to the transmission assembly and affixed to the room, the support assembly slidably retained in the pair of hollow support members for extending and contracting the room in response to operation of the transmission assembly;
• a first flange member affixed to the top edge and side edges of the exterior wall of the room, the first flange member having an elongated portion extending axially away from the exterior wall of the room and including a plurality of protrusions, and
• a complementary second flange member affixed to the top edge and side edges of the opening, the second flange member having a plurality of protrusions complementary to the protrusions on the first flange member for inhibiting liquid from flowing between the first flange member and the second flange member.

In a slidable room with a ceiling, floor and walls for use with a housing assembly having an opening for receiving the slidable room, the improvement comprising:

• a main frame assembly affixed to the housing assembly, including a pair of spaced hollow, elongated support members positioned beneath the slidable room;
• sets of rollers mounted within each support member;
• support rails mounted in each respective support member on a pair of the roller sets, the support rails being connected to the slidable room to move and support the slidable room;
• a force transmission assembly mounted within the main frame assembly and between the support members and connected to each support rail for extending and contracting the slidable room relative to the housing assembly;
• sealing means extending about the housing assembly opening and slidable room for sealing the slidable room in both an extended and contracted state;
• an electrical junction assembly connected to the slidable room;
• and
• an electrical cable connected to the electrical junction assembly for supplying electrical power, wherein at least one of the support rails is hollow and carries the electrical cable therethrough for connection to the electrical junction assembly.

In a slidable room with a ceiling, floor and walls for use with a housing assembly having an opening for receiving the slidable room, the improvement comprising:

• a main frame assembly affixed to the housing assembly, including a pair of spaced hollow, elongated support members positioned beneath the slidable room;
• sets of rollers mounted on each support member;
• support rails having a first end and a second end mounted in each respective support member on the roller sets, the support rails being connected to the slidable room to move and support the slidable room at the first end;
• a force transmission assembly mounted within the main frame assembly and between the support members and being connected at the second end of each support rail for extending and contracting the slidable room relative to the housing assembly, wherein the force transmission assembly and the second end of the support rails stay within the main frame assembly for protection against the environment, with the first end connected to the slidable room assembly so as to be positioned adjacent the housing assembly opening when the slidable room is contracted, and the second end of the support rails being driven for extending the slidable room by the force transmission assembly;
• and
• first and second sealing means extending about, respectively, the housing assembly opening and the slidable rooms for sealing the slidable room in both an extended and contracted state.