US 11,794,815 B2
Reinforced interlocking frame system and components therefor
Todd B. Lozier, Elkhart, IN (US)
Assigned to Thor Tech, Inc., Elkhart, IN (US)
Filed by Thor Tech, Inc., Elkhart, IN (US)
Filed on Jan. 31, 2020, as Appl. No. 16/779,150.
Claims priority of provisional application 62/954,976, filed on Dec. 30, 2019.
Claims priority of provisional application 62/953,061, filed on Dec. 23, 2019.
Claims priority of provisional application 62/951,979, filed on Dec. 20, 2019.
Prior Publication US 2021/0188363 A1, Jun. 24, 2021
Int. Cl. B62D 21/20 (2006.01); B60P 3/32 (2006.01); B29C 65/48 (2006.01); B29C 65/00 (2006.01); B62D 27/02 (2006.01); B62D 29/00 (2006.01)
CPC B62D 21/20 (2013.01) [B29C 65/4855 (2013.01); B29C 66/522 (2013.01); B60P 3/32 (2013.01); B62D 27/023 (2013.01); B62D 29/002 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A structural assembly for a recreational vehicle, said structural assembly comprising:
a first structural frame member having a wall and a hollow space at least partially defined by said wall;
a second structural frame member having a section thereof extended into said hollow space of said first structural frame member forming an internal interface with said wall of said first structural frame member; and
a foam material located in said hollow space and filling a portion of said hollow space to thereby form a bearing member adjacent said section to restrict motion of said section relative to said wall and thereby to form an internal connection between said second structural frame member and said first structural frame member at said internal interface to secure said second structural frame member to said first structural frame member to form a recreational vehicle component, wherein said wall of said first structural frame member comprises a pair of side walls, said first structural frame member further having an upper wall and said pair of side walls depending from said upper wall, said upper wall having a notch at a first side wall of said pair of side walls, said second structural frame member having a side wall with a distal end and a slot adjacent said distal end, said section of said second structural frame member being defined between said slot and said distal end of said side wall of said second structural frame member, and said first side wall of said first structural frame member received in said slot of said second structural frame member, and said foam material at least filling said hollow space adjacent said section of said second structural frame member and bearing against said section of said second structural frame member.