Support leg joint construction with bracing

Details Support leg joint construction with bracing Support leg joint construction with bracing

1987-05-06

1988-04-05

Foss, J. Franklin

Supports

Stand

Understructure

108156, F16M 1116

Patent

active

047353902

ABSTRACT:
A support leg (16) includes an insert (20) within a tubular upper portion (18). Threaded engagement is made between the threaded opening (22) in the insert (20) and a stud (14) which is welded at its upper end to an overhead structure (10). The tubular portion (18) extends through an opening in the small end (34) of a conical brace member (32). The small end (34) of member (32) is welded (38) to the member (16). A large diameter upper end (36) of brace member (32) extends axially outwardly beyond the end (42) of member (16). Rotation of member (16) relative to the stud (14) tightens the screw joint (14, 22) and forces the upper end (36) of brace member (32) into tight contact with the overhead member (10). The weld (44) is harder than the member (16), resulting in a galling of the upper end ( 42) of member (16), during the rotation. This galling makes a tight contact fit between end (42) and weld bead (44). This type of fit braces the member (16) against upper end sideways movement in response to a sideways load on member (16).

REFERENCES:
patent: 892839 (1908-07-01), Innes
patent: 1675827 (1928-07-01), Shrader
patent: 1762776 (1930-06-01), Gardner
patent: 1806169 (1931-05-01), Kohler
patent: 2730419 (1956-01-01), Watrous
patent: 2901301 (1959-08-01), Johnson
patent: 3063765 (1962-11-01), Huff
patent: 3322384 (1967-05-01), Rodwell
patent: 3506227 (1970-04-01), Jenkins
patent: 3530804 (1970-09-01), Broome
patent: 3784254 (1974-01-01), Longato
patent: 3966340 (1976-06-01), Morris
patent: 4662591 (1987-05-01), Encontre

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