BLIND RIVET AND METHOD FOR FASTENING SAME

Title:

BLIND RIVET AND METHOD FOR FASTENING SAME

Document Type and Number:

WIPO Patent Application WO/2016/013406

Kind Code:

A1

Abstract:

Provided is a peel type blind rivet that can be fastened stably without fastening defects. This blind rivet is equipped with: a rivet main body (10) having a sleeve (11) and a flange (12) at one end of the sleeve; and a mandrel (20) having a slender shaft section (21), a mandrel head part (23) on one end of the shaft section, and a cutting blade part (22) for cutting open the sleeve. The sleeve of the rivet main body has a thick-walled section (15) adjacent to the flange and a thin-walled section (14) provided at the end of the sleeve, and having a larger inner diameter than the thick-walled part. The shaft section of the mandrel has a large-diameter section (31) adjacent to the cutting blade part, a medium-diameter section (33) having a smaller outer diameter than the large-diameter section, a small-diameter section (35) having a smaller outer diameter than the medium-diameter section, and a securing groove (34) between the medium-diameter section and the small-diameter section. When the blind rivet is fastened, the medium-diameter section of the mandrel causes a metal flow of the material of the thick-walled section into the securing groove, and the mandrel can be firmly secured to the rivet main body.

Inventors:

HAYASHI MASAHIRO (JP)
SAKODA KANJI (JP)

Application Number:

PCT/JP2015/069738

Publication Date:

January 28, 2016

Filing Date:

July 09, 2015

Export Citation:

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Assignee:

NEWFREY LLC (US)
NIPPON POP RIVETS AND FASTENERS LTD (JP)

International Classes:

F16B19/10

Foreign References:

JPH06173920A	1994-06-21
JPH10274220A	1998-10-13
US3369289A	1968-02-20
JP2002541411A	2002-12-03
JPH0226305A	1990-01-29
US3292482A	1966-12-20
JPS6367289U	1988-05-06
JPS60159214U	1985-10-23
JPS5620112U	1981-02-23

Other References: