Separable joint for arm and hub constructions

Details Separable joint for arm and hub constructions Separable joint for arm and hub constructions

1992-10-26

1994-10-18

Bradley, P. Austin

Joints and connections

Branched

Three or more radiating members

403171, 52646, E04B 119, E04B 158

Patent

active

053562348

ABSTRACT:
There is provided an improved separable joint for arm and hub constructions for structural frameworks. The separable joint comprises a hub having sides and opposite ends. A plurality of spaced, longitudinal, parallel apertures extend end to end through the hub positioned towards the sides of the hub. Parallel, longitudinally extending slots extend between the sides of the hub and central portions of the apertures. An elongated spline is provided having ends and sides. A keyway slot extends from end to end through the spline and opening to one side. The sides of the spline are contoured to conform to the sides of the corresponding apertures in the hub and to be releasable received therein with the keyway slot opening and the hub aperture slot aligned adjacent to each other. The spline has secured in its keyway slot a co-operative interlocking key formed in an end of a corresponding arm. Securing means are provided at the ends of the hub to prevent accidental removal of the splines and associated arms when in position in the hub apertures.

REFERENCES:
patent: 2931467 (1960-04-01), Fentiman
patent: 3275351 (1966-09-01), Fentiman
patent: 3452452 (1969-07-01), Dore
patent: 3527486 (1970-09-01), Gamp
patent: 3715136 (1973-02-01), Yoshida
patent: 4951440 (1990-08-01), Staeger

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