Joint arrangement for knockdown furniture

Details Joint arrangement for knockdown furniture Joint arrangement for knockdown furniture

1986-09-12

1987-09-08

McCall, James T.

Chairs and seats

Having detachably interfitting parts or components; i.e.,...

Interfitted back and back frame

297443, 403176, A47C 700

Patent

active

046919651

ABSTRACT:
A joint arrangement for knockdown furniture includes a first spar having two mounting surfaces at lateral sides thereof at a same level; a pair of second spars, each having two end faces, each attached perpendicularly at one end face thereof to one of the mounting surfaces, therefore having two inward faces forming an angle therebetween; a substantially trapezoidal joint piece having two side surfaces conforming to the angle for being screw attached to one of the first spar and the pair of second spars; and a guiding means comprising a ridge on one of the side surfaces and the inward faces and a corresponding groove on the other of the side surfaces and the inward faces, whereby the joint piece can be positioned easily and accurately during assembly to strengthen the joint. An improved knockdown chair is provided using this joint arrangement.

REFERENCES:
patent: 1524330 (1925-01-01), Zinkgraf et al.
patent: 1644336 (1927-10-01), Gunlocke et al.
patent: 3329383 (1967-07-01), Pilliod et al.
patent: 4072433 (1978-02-01), Vehl
patent: 4347015 (1982-08-01), Olashaw
patent: 4577906 (1986-03-01), Hsiung

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