Joints and connections – Member ends joined by inserted section – Expansible section
Patent
1975-02-27
1976-05-04
Kundrat, Andrew V.
Joints and connections
Member ends joined by inserted section
Expansible section
52753E, E04B 148
Patent
active
039543455
ABSTRACT:
A self-locking dowel pin, suitable for use in assembling abutting furniture components, including a central portion and end portions of flexible material extending longitudinally outwardly from the central portion and being of initially transversely inwardly tapering configurations to provide reducing cross-sectional dimensions outwardly along the length thereof. The end portions each have a generally V-shaped cut out therein extending longitudinally inwardly from the end thereof for splitting of the end portions. A wedge-shaped expansion member is associated with each of the end portions and is of larger cross-sectional dimensions than the cut outs for being forced into and for expanding the end portions of flexible material to generally non-tapering configurations. Flange means extend generally transversely outwardly from outside surfaces of said end portions. Whereby, the dowel pin may be inserted into and extend through mating bores of abutting furniture components having predetermined like configurations only slightly larger than the dowel pin and the wedge-shaped expansion members may be force fitted into the V-shaped cut outs for expanding the end portions and for forcing the flange members into biting engagement with the surfaces of the bores for locking of the dowel pin within the mating bores for holding the furniture components in assembled condition.
REFERENCES:
patent: 1808318 (1931-06-01), Pleister
patent: 2011529 (1935-08-01), Shaw
patent: 3217583 (1965-11-01), Fulop
patent: 3438659 (1969-04-01), Waldron
patent: 3651653 (1972-03-01), Mouton, Jr.
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