Joints and connections – Branched – Three or more radiating members
Patent
1985-06-07
1987-01-20
Husar, Cornelius J.
Joints and connections
Branched
Three or more radiating members
403172, 403217, 403141, 52 82, 135 98, 135109, F16B 1700
Patent
active
046377484
ABSTRACT:
This invention relates to an improved self-adjusting hub and strut-endcap assembly for tent frame roof and wall struts characterized by a two-part hub section sandwiched together in stacked relation to define a set of four sockets, each of which has a channel-shaped entryway which is adapted to receive the socket-forming neck projecting from the ball on the inner end of one of the strut endcaps for limited side-to-side movement therein when in extended position as well as movement between its extended position and a folded position wherein the strut connected thereto lies in nested essentially parallel relation to the other struts of the frame. The socket entryways in the hub each has their adjacent walls flared such that adjacent pairs of strut-endcaps retained therein can move from an extended right-angular relation to one another into an acute-angular relation thus cooperating with a like pair of sockets on the other side of the hub to enable the struts mounted therein to self-adjust and move from an essentially radial position from which a square wall or roof structure can be formed into non-radial relationship adapted to the formation of four-sided figures with at least two unequal sides.
REFERENCES:
patent: 3181542 (1965-05-01), Bareis
patent: 3818482 (1974-05-01), Beavers
patent: 3968809 (1975-05-01), Beavers
patent: 4026312 (1977-05-01), Beavers
patent: 4077417 (1978-03-01), Beavers
patent: 4285354 (1981-08-01), Beavers
patent: 4450851 (1984-05-01), Beavers
Fischetti Joseph A.
Husar Cornelius J.
Spangler, Jr. Edwin L.
T. A. Pelsue Company
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