Mechanical end joint system for connecting structural column ele

Details Mechanical end joint system for connecting structural column ele Mechanical end joint system for connecting structural column ele

1990-03-30

1990-10-16

Kundrat, Andrew V.

Joints and connections

Manually releaseable latch type

Having operating mechanism

403327, 403331, 403171, B25G 318, F16B 2100

Patent

active

049630520

ABSTRACT:
A mechanical end joint system for connecting structural column elements and eliminating the possibility of free movement between joint halves during loading or vibration has a node joint body having a cylindrical engaging end, and a column end body having a cylindrical engaging end. Each of the cylindrical engaging ends has an integral semicircular tongue and an integral semicircular groove. The node joint body has a conical aperture at the center of its cylindrical engaging end. The column end joint body has an internal latch mechanism housed therein, with the internal latch mechanism having a latch bolt element slidably disposed along the longitudinal axis of the column end joint body at the cylindrical engaging end. The internal latch mechanism also has a spring mechanism disposed along the longitudinal axis of the column end joint body, as well as a compressible preload mechanism and plunger means housed therein. Locking of the mechanical end joint system and adding a preload across the semiconductor tongue and semicircular groove faces is accomplished by compressing the preload mechanism, thereby exerting and equal and opposite force on the latch bolt element and plunger means, and causing the node joint body and the column end joint body to be pressed tightly against each other, effecting a preloaded compressive fit between the two joint halves. As well, a secondary locking means prevents inadvertent disassembly.

REFERENCES:
patent: 4340318 (1982-07-01), Frosch
patent: 4557133 (1985-12-01), Mikusch

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