초록 ▼

A ball device for setting blind rivets is provided. The device features one or more rows of balls of at least three balls per row, and a taper section which cooperates with the balls to grip the mandrel of the blind rivet. Upon movement of the taper section, the balls dig into the mandrel to grip, a

A ball device for setting blind rivets is provided. The device features one or more rows of balls of at least three balls per row, and a taper section which cooperates with the balls to grip the mandrel of the blind rivet. Upon movement of the taper section, the balls dig into the mandrel to grip, and consequently pull the mandrel in the desired direction. The device features a longer life than similar devices utilizing jaws to grip the mandrel.

대표청구항 ▼

[ What is claimed is:] [1.] A riveting apparatus comprising:a rivet having a head and a body;a mandrel having a first end and a second end, the first end being in contact with the body of the rivet;a nosepiece having an aperture, the head of the rivet being positionable to abut the nosepiece and the

[ What is claimed is:] [1.] A riveting apparatus comprising:a rivet having a head and a body;a mandrel having a first end and a second end, the first end being in contact with the body of the rivet;a nosepiece having an aperture, the head of the rivet being positionable to abut the nosepiece and the second end of the mandrel being positionable through the aperture of the nosepiece;a substantially frusto-conically tapered internal surface coaxially aligned with the aperture of the nosepiece;a structure having an elongated and substantially hollow first section, the structure further having a second section with a plurality of passages, the structure being axially biased toward the tapered internal surface;the second end of the mandrel being positionable inside a portion of the structure; anda set of rotatable members located in the passages of the structure, abutting force of the rotatable members against the tapered internal surface operably causing the rotatable members to move toward an axial centerline of the structure and engage corresponding portions of the mandrel, movement of the tapered internal surface and the structure away from the nosepiece and rivet causing breakage of the mandrel at a predetermined location prior to breakage of the mandrel portions corresponding with the rotatable members.