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CA2081690A1 - Self-attaching fastening element and method of attachment - Google Patents

Self-attaching fastening element and method of attachment

Info

Publication number
CA2081690A1
CA2081690A1 CA 2081690 CA2081690A CA2081690A1 CA 2081690 A1 CA2081690 A1 CA 2081690A1 CA 2081690 CA2081690 CA 2081690 CA 2081690 A CA2081690 A CA 2081690A CA 2081690 A1 CA2081690 A1 CA 2081690A1
Authority
CA
Canada
Prior art keywords
panel
body portion
fastening element
self
barrel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2081690
Other languages
French (fr)
Other versions
CA2081690C (en
Inventor
Harold A. Ladouceur
Rudolf R. M. Muller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Multifastener Corp
Original Assignee
Multifastener Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/806,172 external-priority patent/US5146672A/en
Priority claimed from US07/888,580 external-priority patent/US5237733A/en
Application filed by Multifastener Corp filed Critical Multifastener Corp
Publication of CA2081690A1 publication Critical patent/CA2081690A1/en
Application granted granted Critical
Publication of CA2081690C publication Critical patent/CA2081690C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Insertion Pins And Rivets (AREA)
  • Connection Of Plates (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

A self-attaching fastening element, such as a nut fastener, having a body portion and an integral annular riveting barrel portion.
The body portion includes axial grooves and, in the preferred embodiment of the nut-type fastener, the body portion includes a radial flange and the grooves extend radially from the body portion into the flange portion. In the most preferred embodiment, the body portion is polygonal and the axial grooves are located in the juncture of adjacent flat surfaces. The method of attaching the self-attaching fastening element of this invention to a panel includes forming an opening in the panel coaxially aligned with the barrel portion having a diameter less than the barrel portion, driving the barrel portion into the panel, thereby drawing a cone-shaped portion in the panel receiving the body portion, driving the body portion into the cone-shaped panel portion, deforming the panel portion into the body portion and the axial grooves. The free end of the barrel portion may be simultaneously deformed radially to form a mechanical interlock with the panel. Where the body portion includes a radial flange, the flange is driven into the panel and the panel is driven into the radial grooves, preventing relative rotation of the fastening element in the panel.
CA 2081690 1991-12-12 1992-10-29 Self-attaching fastening element and method of attachment Expired - Fee Related CA2081690C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US806,172 1991-12-12
US07/806,172 US5146672A (en) 1980-02-02 1991-12-12 Die assembly for attaching a female element
US07/888,580 US5237733A (en) 1980-02-02 1992-05-26 Female die assembly for attaching a self-attaching fastening element and method of attachment
US888,580 1992-05-26

Publications (2)

Publication Number Publication Date
CA2081690A1 true CA2081690A1 (en) 1993-06-13
CA2081690C CA2081690C (en) 2003-12-30

Family

ID=27122856

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2081690 Expired - Fee Related CA2081690C (en) 1991-12-12 1992-10-29 Self-attaching fastening element and method of attachment

Country Status (1)

Country Link
CA (1) CA2081690C (en)

Also Published As

Publication number Publication date
CA2081690C (en) 2003-12-30

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed