초록

An insulating building block made up of an insulating core and two concrete walls is configured such that the core comprises locking protrusions to interlock with preformed cavities in the concrete walls.

대표청구항 ▼

1. An insulating building block made up of an insulating core and two concrete walls, each cast over one side of said core, wherein (A) said core comprises: a body having opposed parallel flat outer faces, each face being bound by parallel longitudinal edges and parallel side edges, said body ha

1. An insulating building block made up of an insulating core and two concrete walls, each cast over one side of said core, wherein (A) said core comprises: a body having opposed parallel flat outer faces, each face being bound by parallel longitudinal edges and parallel side edges, said body having a transverse plane normal to said outer faces and essentially centrally between said longitudinal edges; a series of locking protrusions formed integrally with said body and projecting from said outer faces; wherein each protrusion extends from either side of said transverse plane toward said longitudinal edges; wherein said protrusions have outer surfaces and lateral edges, said protrusion lateral edges tapering inwardly between said outer surfaces and said body outer faces whereby said protrusions are dovetail in cross-sections parallel to said transverse plane, and wherein said protrusion lateral edges further make angles with said transverse plane suitable to facilitate demolding of said core when said core is molded in two half molds having a closure plane co-planar with said transverse plane, and wherein (B) each concrete wall comprises: a concrete slab formed with cavities into which said protrusions are set; said slab having two contiguous edges extending past two contiguous edges of said core a first predetermined distance and having the remaining two contiguous edges terminating short of the remaining two contiguous edges of said core a second predetermined distance, greater than said first predetermined distance, suitable to define therewith L-shaped rabbets for making mortar joints in the use of said building block, like extending edges of an adjacent block of a like structure penetrating partly into said L-shaped rabbets. 2. A building block as claimed in claim 1, wherein said protrusion lateral edges taper toward one another as they extend in the direction of said longitudinal edges, said protrusions terminating short of said longitudinal edges. 3. A building block as claimed in claim 2, wherein said protrusions have top edges tapering toward said body outer faces in the direction of said transverse plane. 4. A building block as claimed in claim 1, wherein said protrusion lateral; edges are parallel and perpendicular to said transverse plane, on one side of said transverse plane and taper toward one another on the other side of said plane to terminate short of the respective longitudinal edge. 5. A building block as claimed in claim 1, wherein said body is formed of two outward panels spaced from one another and having bounding edges defining said longitudinal edges and side edges, said body being further formed by a middle panel between and integral with said outward panels; wherein said middle panel is off-set from said outward panels whereby defining tenons along two contiguous ones of said edges and mortises along the remaining ones of said edges. 6. A building block as claimed in claim 5, wherein each of said concrete slabs is formed with notches along one of said edges, terminating short of the adjacent core edge, for the handling of said block. 7. A building block as claimed in claim 1, wherein each of said concrete slabs is formed with notches along one of said edges, terminating short of the adjacent core edge, for the handling of said block. 8. An insulating building block made up of an insulating core and two concrete walls, each cast over one side of said core, wherein (A) said core comprises: a body having opposed parallel flat outer faces, each face being bound by parallel longitudinal edges and parallel side edges, said body having a transverse plane normal to said outer faces and essentially centrally between said longitudinal edges; a series of locking protrusions formed integrally with said body and projecting from said outer faces; wherein each protrusion extends from either side of said transverse plane toward said longitudinal edges; wherein said protrusions have outer surfaces and lateral edges, said protrusion lateral edges tapering inwardly between said outer surfaces and said body outer faces whereby said protrusions are dovetail in cross-sections parallel to said transverse plane, and wherein said protrusion lateral edges further make angles with said transverse plane suitable to facilitate demolding of said core when said core is molded in two half molds having a closure plane co-planar with said transverse plane, and wherein (B) each concrete wall comprises: a concrete slab formed with cavities into which said protrusions are set; said slab having two contiguous edges extending past two contiguous edges of said core a first predetermined distance and having the remaining two contiguous edges terminating short of the remaining two contiguous edges of said core a second predetermined distance, greater than said first predetermined distance, suitable to define therewith L-shaped rabbets for making mortar joints in the use of said building block, like extending edges of an adjacent block of a like structure penetrating partly into said L-shaped rabbets, each concrete slab being formed, along a top edge thereof and on the surface thereof facing said core, with an L-shaped recess running the full length of said slab, and further comprising an elongated right angular reinforcing metal member having a pair of flanges of which one lies in said recess and the other lies flat over the top surface of said slab adjacent said top edge.