Patent ID: 9011057
Filing Date: 2015-04-21
Classification: F16B,Y10T

Abstract:
1. A blind rivet for fastening together a plurality of mounted components with mounting holes, wherein the blind rivet comprises a rivet body having a hollow sleeve and a flange formed in one end of the sleeve, a through hole being formed so as to pass from a sleeve-side end portion to the flange-side end portion, an outer surface of the hollow sleeve including an increased-diameter portion with a larger diameter than an outer diameter of the sleeve, a mandrel having a slender stem whose outer diameter is smaller than the inner diameter of the sleeve and whose length is greater than the rivet body, and a head whose outer diameter is greater than the inner diameter of the sleeve, and a washer whose inner diameter is smaller than the outer diameter of the flange and slightly smaller than the outer diameter of the increased-diameter portion so that when the washer is pushed into the expanded-diameter portion the washer is fixable on the sleeve by the expanded diameter portion, the outer diameter of the washer being greater than the outer diameter of the flange, and wherein the head of the mandrel is arranged adjacent to the sleeve-side end portion of the rivet body, the stem of the mandrel is configured so as to extend through the rivet body from the flange-side end portion, and the washer is mounted near the flange on the outer periphery of the sleeve of the rivet body, and wherein the outer peripheral surface of the sleeve adjacent to the flange of the rivet body is pushed on opposite sides radially so that an outer diameter of the sleeve in a direction perpendicular to the opposite sides is expanded to form an expanded-diameter portion with a diameter greater than a diameter of the pushed opposite sides, so that the outer peripheral surface of the sleeve in a longitudinal direction of the sleeve transitions gradually from an original sleeve diameter to the expanded diameter, and wherein the washer is pushed onto and secured to the expanded-diameter portion of the sleeve.