This invention belongs to the field of means for attachment for construction blocks and particularly crossed ties therefor.
The present invention refers to a previous provisional application U.S. 61,760,397 having same title and filed, on Feb. 4, 2013 by same inventor. Our research among patents revealed some systems that caught our attention:
U.S. Pat. No. 7,415,804 <<Web structure for insulating concrete block>> filed on Sep. 23, 2010 by David Michael GARRETT (US) shows means of attachment of two parallel panels comprising web structures 16 placed perpendicularly to the panels in the space between them with means of interconnection.
U.S. Pat. No. 7,415,804 <<Insulated concrete form having welded tie>> filed, on Sep. 4, 2003 by Jerry D. Coombs and al. (US) shows metal wire ties comprising horizontal and vertical members used to interconnect two opposing parallel panels.
Light weight, concrete, rock or wood blocks need a frame which maintains a spaced apart position of the construction blocks and avoids shifting when the blocks are subjected to oscillating during wind, storm, tornadoes, landslides or earthquake. The present invention provides means for attaching blocks two by two and keep them stable in a spaced apart position resisting shear forces. The crossed ties interconnecting blocks are comprising a rectangular shape wherein opposite corners are joined by straight links to avoid shifting when the blocks are subjected to oscillating. Pegs are provided to mesh with critical positions in the blocks for stable junctions.
With such attachments, the blocks are made with notches on upper and lower surfaces of the blocks and on their sides. The crossed ties are then pressed tight into the notches of the block. Means of lilting can be provided to lift an assembly of blocks interconnected with crossed ties.
The present invention will be further understood from the following description with reference to the drawings wherein like numbers refer to like parts for easy identification.
An assembly of at least two parts of blocks made of light weight, concrete, wood, or rock, parallel, angular, radius, T-shape, shaft-shape. Between the parts, a void channel or filled channel with an insulating substance like mineral wool and/or roxul or blown in spray insulation. The channels provide a sound barrier and insulation. Crossed ties are used such as means of attachment to prefix or preassemble the blocks together in the construction of a double wall structure. The crossed ties are in a shape of a rectangle wherein opposite corners are joined by straight links for avoiding shifting when the blocks are subjected to oscillating during wind, storm, landslides, tornadoes, hurricanes or earthquake, The pegs are in a rectangular or a circular shape.
With such attachments, the blocks are made with notches on upper or lower surfaces of the blocks and on their sides. The pegs of the crossed ties are then pressed tight into the notches of the block. The crossed ties are provided with means of lifting, in a snake shape, to lift the assembled blocks with crossed ties fastened.
Two blocks joined with means of attachment as crossed ties could be of different materials, such as a marble block joined with a rock block, or a cement block joined with a colored cement block or a wood block. The rows of blocks are held by passing through metal rods which position any two blocks in a series to form a wall, with armoured rebar rods.
The crossed ties can comprise a retainer hook destined to hook on rubber rings to keep parallel back and front blocks together when erecting sound barrier walls.
More precisely, our invention comprises a combination of parallel spaced apart blocks 22-22′ interconnected with a rectangular-shape crossed tie 28. Each block comprises an interior face 25-25′ comprising means of notches 24 on the periphery. The crossed tie 28 comprises:
The pegs are provided to mesh with critical positions in the blocks for stable junctions.
The pegs may be round pegs 42 or flat pegs 41. Means of lifting 36 are used in the crossed ties to lift the whole combination of interconnected blocks. The means of lifting are snake-shape transversal members tied by their ends. Channel 52 are made in rectangular-shape ends 31 to pass the means of lifting through, when one lifts them up, thus avoiding a gap between two interconnected blocks pressed aside against each other when erecting wall construction.
The crossed ties may comprise a retainer hook 50 to hook on robber rings for keeping parallel back and front blocks together when ercting sound barrier walls.
The crossed ties are preferably made of plastic.
It is to be clearly understood that the instant description with reference to the annexed drawing is made in an indicative manner and that the preferred embodiments described herein are meant in no way to limit further embodiments realizable within the scope of the invention.