US 4,776,738 A · Fastening device

Abstract

An improved fastening device is disclosed for securing within an aperture of a workpiece. The invention comprises a longitudinally extending body member for insertion within the aperture of the workpiece. The fastening device includes a locking shoulder secured to the longitudinally extending body member such that the shoulder is spaced relative to a surface of the workpiece by resilient material. A groove is disposed in the body member for receiving the resilient material for coacting between the body member and the workpiece for reducing undesired movement therebetween. In an alternative embodiment of the invention a fastening device is disclosed for the reception therein of a thermo-setting material, the device being secured within a plurality of apertures defined by a multi-layered workpiece. The fastening device includes a first lamina member which defines a first plurality of transverse bores each of which are aligned with an aperture of the plurality of apertures. A plurality of elongate members each having a first and a second end are secured with the first end of each of the elongate members being disposed within one of the plurality of bores such that there is a clearance between the workpiece and each of the elongate members. The clearance is filled with the thermo-setting material so that there is no contact between the workpiece and the elongate members.

Claims23

Dependent claims

A fastening device for securing to a workpiece means utilizing a bonding material, the workpiece means defining a plurality of apertures within the workpiece means, said fastening device comprising:

a lamina member;
a plurality of elongated members;
each of said plurality of elongated members having a first end secured to said lamina member and having a second end extending from said lamina member;
each of said plurality of elongated members being aligned with the plurality of apertures of the workpiece means, respectively;
a longitudinal channel defined within each of said elongate members extending proximate said first ends of said elongate members and terminating before said second ends of said elongate members;
a plurality of lateral holes extending from said longitudinal channel to an outer surface of each of said elongate members,
each of said plurality of elongated members being dimensioned for creating interstices between said outer surfaces of said elongate members and the plurality of apertures of the workpiece means when said plurality of elongated members are received within the plurality of apertures of the workpiece means;
and
said longitudinal channels and said plurality of lateral holes enabling the bonding material to be introduced into said longitudinal channels to flow through said lateral holes for filling the interstices between said outer surfaces of said elongate members and the plurality of apertures of the workpiece means to secure said fastening device to the workpiece means.

6 more elements

A fastening device for securing to a workpiece means utilizing a bonding material, the workpiece means defining a plurality of apertures within the workpiece means, said fastening device comprising:

a substantially planar lamina member defining a plurality of bores;
said plurality of bores of said fastening device being aligned with the plurality of apertures of the workpiece means;
a plurality of elongated members each having a first and a second end;
said first ends of said elongate members being secured to said plurality of bores of said fastening device;
a longitudinal channel defined within each of said elongate members extending proximate said first ends of said elongate members and terminating before said second ends of said elongate members;
a plurality of lateral holes extending from said longitudinal channel to an outer surface of each of said elongate members,
each of said plurality of elongated members being dimensioned for creating interstices between said outer surfaces of said elongate members and the plurality of apertures of the workpiece means when said plurality of elongated members are received within the plurality of apertures of the workpiece means;
and
said longitudinal channels and said plurality of lateral holes enabling the bonding material to be introduced into said longitudinal channels to flow through said lateral holes for filling the interstices between said outer surfaces of said elongate members and the plurality of apertures of the workpiece means to secure said fastening device to the workpiece means.

6 more elements

A fastening device for securing to a workpiece means utilizing a bonding material, the workpiece means defining a plurality of through apertures extending between a first and a second workpiece surface, said fastening device comprising:

a first lamina member;
a plurality of elongated members with each of said plurality of elongated members having a first and a second end;
said first ends of said elongate members being secured to said first lamina member with said second end of said elongated members extending from said first lamina member;
each of said plurality of elongated members being aligned with the plurality of apertures of the workpiece means;
a longitudinal channel defined within each of said elongate members extending proximate said first ends of said elongate members and terminating before said second ends of said elongate members;
a plurality of lateral holes extending from said longitudinal channel to an outer surface of each of said elongate members,
a second lamina member defining a plurality of bores;
said plurality of bores of said fastening device being aligned with said plurality of said elongated members extending from said first lamina member;
each of said plurality of elongated members being receivable within the plurality of apertures of the workpiece means with said second ends of said elongated members extending beyond the second workpiece surface of the workpiece means when said first lamina member engages the first workpiece surface of the workpiece means;
each of said second ends of said plurality of elongated members being receivable within the plurality of bores of said second lamina member when said second lamina member engages the second workpiece surface of the workpiece means;
means for securing said second ends of said plurality of elongated members to said second lamina member with the workpiece means disposed between the workpiece means;
each of said plurality of elongated members being dimensioned for creating interstices between said outer surfaces of said elongate members and the plurality of apertures of the workpiece means when said plurality of elongated members are received within the plurality of apertures of the workpiece means;
and
said longitudinal channels and said plurality of lateral holes enabling the bonding material to be introduced into said longitudinal channels to flow through said lateral holes for filling the interstices between said outer surfaces of said elongate members and the plurality of apertures of the workpiece means to secure said fastening device to the workpiece means.

11 more elements

Dependencies are inferred from the claim text.

Fastening device

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Fastening device

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Abstract

Claims23