A - Human Necessities – 44 – B
Patent
A - Human Necessities
44
B
24/58
A44B 17/00 (2006.01) F16B 21/02 (2006.01) F16B 21/08 (2006.01) F16B 5/06 (2006.01)
Patent
CA 1042636
COUPLING SYSTEM ABSTRACT OF THE DISCLOSURE Disclosed is a coupling system for uniting two juxta- posed plates with aligned apertures by means of a coupling member, the coupling member integrally formed of synthetic resin and having an umbrella-shaped head portion with a knob at an upper portion thereof. The coupling member has two spaced legs, each leg extending perpendicularly from an underside of the head portion and having a shoulder portion on a periphery thereof. The shoulder portion of each leg is spaced from the underside of the head portion by a portion defining a neck portion of the leg, each neck portion having a stopping projection thereon. The plates each have an aperture having a major axis and a minor axis, each aperture being of greater extent along the major axis than along the minor axis. The aperture of the uppermost of said juxta- positioned plates has opposed stepped stopping portions along the minor axis thereof. The plates may be coupled by juxtaposing the plates and aligning the apertures so that the major axes are aligned and by inserting the two legs through the aligned apertures with the shoulder portion of each leg in the direction of the major axes, and by rotating said knob substantially 90° to cause the shoulder portion of each leg to move toward and engage the underside of the lowermost of the juxtapositioned plates adjacent edge portions of its aperture in the direction of its minor axis. The stopping projections on the neck portions of each leg engage respective stepped stopping portions of the upper plate to stop the rotat- ion of the coupling member at substantially 90°.
223034
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