Importance

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Abstract

A rivet for joining two panels together including a solid member and a member having a tubular portion surrounding part of the solid member. In one form, the rivet has a solid shank and a tail with a tubular forward portion. The shank extends entirely through an aperture in the panels to provide good shear strength. The deformable tail retains the rivet within the aperture but does not damage the edges of the aperture, which may be composite material. The tail forward tubular portion surrounds the shank and is fastened thereto mechanically or by welding. A cavity is created between the head of the tail and the rear face of the shank so that under axial compression the tubular walls of the tail buckle outward. The tail is configured to provide grip range wherein the buckling will occur against the rear wall of the workpieces being joined within a given range of workpiece thickness. In another form, one rivet member is a sleeve with a head on one end, and the solid member has a shank that extends into the sleeve tail and has a head which engages the sleeve tail. A cavity at the end of the shank accommodates axial movement of the solid member when a portion of the sleeve buckles outwardly.

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First Claim