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A self-drilling blind rivet includes a deformable sleeve and a shaft having a drill bit at one end. The shaft extends through the sleeve and the drill bit is connected to one end of the sleeve. The shaft and sleeve are rotatable as a unit. A method for making a riveted joint with a self-drilling bli

A self-drilling blind rivet includes a deformable sleeve and a shaft having a drill bit at one end. The shaft extends through the sleeve and the drill bit is connected to one end of the sleeve. The shaft and sleeve are rotatable as a unit. A method for making a riveted joint with a self-drilling blind rivet includes the steps of passing the drill bit through a work piece and pulling the drill bit entirely within the sleeve so that the drill bit does not extend beyond the end of the sleeve to which it is connected. Thus, the diameter of a portion of the sleeve in increased and the riveted joint is rendered pressure tight.

대표청구항 ▼

A self-drilling blind rivet, comprising: (a) a deformable sleeve having a first end and a second end, said first end having a flange; (b) a shaft having a first end and a second end, said first end extending beyond said flange, said second end having a drill bit extending from said second end of sai

A self-drilling blind rivet, comprising: (a) a deformable sleeve having a first end and a second end, said first end having a flange; (b) a shaft having a first end and a second end, said first end extending beyond said flange, said second end having a drill bit extending from said second end of said sleeve, and a region of weakened tensile strength between said first end of said shaft and said second end of said shaft, said region of weakened tensile strength dividing said shaft into a first portion and a second portion; (c) said shaft extending through said sleeve with such a fit that said sleeve, said shaft and its drill bit constitute a unit which is rotatable; and (d) said drill bit being permanently connected to said second end of said sleeve.