Tie rod and cone assembly for a concrete wall form

Claim 2

A tie rod and cone assembly designed to hold a pair of upstanding concrete wall form sides in spaced relation, adapted to project through transversely aligned holes provided in said form sides, and comprising a one-piece strip of flat metal stock having parallel side edges which are formed with pairs of breakback recesses that are spaced inwards from the ends of the strip, thus dividing the strip into an inner medial section and outer end regions, and a tubular resilient cone telescopically received on each end region and having an inner rim provided with opposed jaw portions which project into the adjacent breakback recesses, and an outer rim which for the most part is remote from said end region, said cone being formed with oppositely disposed slots therein which extend from said inner rim to points adjacent to said outer rim thus dividing the cone into two identical counterpart sections which are joined together by narrow hingelike webs in the vicinity of said outer rim, whereby axial pressure which is applied to said outer rim will maintain said jaw portions entirely within the confines of said recesses.

Claim 3

A tie rod and cone assembly as set forth in claim 1 and wherein said cone is of generally flat over-all configuration, and is provided with generally trapezoidal side walls which straddle and, for the most part, closely hug the opposite flat sides of the flat metal strip.

Claim 4

A tie rod and cone assembly as set forth in claim 2 and wherein said side walls are formed with outwardly bulging semi-conical convex apron portions which have their bases coincident with said outer rim of the cone, extend inwardly from said outer rim of the cone, and are adapted to seat against the adjacent side of the form when the tie rod is in position thereon.

Claim 5

A tie rod and cone assembly as set forth in claim 3 and wherein each side wall is formed internally of the cone with a pair of protuberances which straddle the side edges of said outer end region in close proximity thereto.

Claim 6

A tie rod and cone assembly as set forth in claim 4 and wherein each of said protuberances is in the form of a longitudinally extending rib which extends from one of said jaw portions to a region closely adjacent to said outer rim of the cone.

Claim 7

A tie rod and cone assembly as set forth in claim 4 and wherein each of said breakback recesses is in the form of an elongated shallow notch which terminates at its inner end in an outwardly facing jaw-engaging shoulder.

Claim 8

A tie rod and cone assembly as set forth in claim 6 and wherein the shallow notches afforded by said breakback recesses present inwardly slanting bottom walls.

Claim 9

A tie rod and cone assembly as set forth in claim 2 and wherein each of said trapezoidal side walls has its large base coincident with the outer rim of the cone and such large base is of arcuate configuration on a relatively large radius of curvature.

Claim 10

A tie rod and cone assembly designed to hold a pair of upstanding concrete wall form sides in spaced relationship adapted to project through transversely aligned holes in said form sides, and comprising a tie rod in the form of a one-piece strip of flat metal stock presenting straight parallel side edges, said side edges being provided at a region spaced inwardly from one end of the strip with recesses the existence of which establishes A reduction in the transverse width of the strip and a consequent weakening of the tie rod at such region, thus dividing the tie rod into a fixed inner section adapted to remain embedded in the concrete which is poured between said form sides and a free outer end region adapted to project outwardly from one face of the poured concrete and be wrested from the fixed section by impact thereagainst, and a tubular cone encompassing said end region of the strip and extending a short distance longitudinally from said region toward said one end of the strip, said cone having an outer rim adapted to bear against said one form side and an inner rim projecting into said recesses, said outer rim being for the most part disposed remote from said strip, said cone being formed with oppositely disposed slots therein extending from said inner rim to points adjacent to said inner rim, thus dividing the cone into identical counterpart sections which are joined together by narrow frangible connecting webs, whereby the pressure exerted by said one form side against the outer rim of the cone serves to maintain said inner rim disposed in said recesses.

Claim 11

A tie rod and cone assembly designed to hold a pair of upstanding concrete wall form sides in spaced relationship adapted to project through transversely aligned holes in said form sides, and comprising a tie rod in the form of a one-piece strip of flat metal stock presenting straight parallel side edges, said side edges being provided at a region spaced inwardly from one end of the strip with recesses the existence of which establishes A reduction in the transverse width of the strip and a consequent weakening of the tie rod at such region, thus dividing the tie rod into a fixed inner section adapted to remain embedded in the concrete which is poured between said form sides and a free outer end region adapted to project outwardly from one face of the poured concrete and be wrested from the fixed section by impact thereagainst, and a tubular cone encompassing said end region of the strip and extending a short distance longitudinally from said region toward said one end of the strip, said cone having an outer rim adapted to bear against said one form side and an inner rim projecting into said recesses, said outer rim being for the most part disposed remote from said strip, said cone being formed with oppositely disposed slots therein extending from said inner rim to points adjacent to said inner rim, thus dividing the cone into identical counterpart sections which are joined together by narrow frangible connecting webs, whereby the pressure exerted by said one form side against the outer rim of the cone serves to maintain said inner rim disposed in said recesses.

Claim 12

A tie rod and cone assembly as set forth in claim 9 and wherein said cone is of generally flat over-all configuration and is provided with trapezoidal side walls which straddle and, for the most part, closely hug the opposite flat sides of the strip.