Riveting member for assembling composite hardware

Abstract

A fastener is configured to assemble parts of composite materials. The fastener includes a head; a sleeve including a first section including a first inner diameter, and a second section including a second inner diameter, the second inner diameter being less than the first inner diameter, the second section being between the first section and the head. The fastener also includes an insert inside the sleeve.

1 - 15 . (canceled) 
     
     
         16 . A fastener configured to assemble parts of composite materials, the fastener comprising:
 a head;   a sleeve including a first section including a first inner diameter, and a second section including a second inner diameter, the second inner diameter being less than the first inner diameter, the second section being between the first section and the head; and   an insert inside the sleeve.   
     
     
         17 . A fastener according to  claim 16  wherein the head defines a recess abutting the second section of the sleeve. 
     
     
         18 . A fastener according to  claim 16  wherein the first section of the sleeve is configured to form a bulb, thereby crimping the insert inside the sleeve. 
     
     
         19 . A fastener according to  claim 16  wherein the insert includes a diameter enabling housing of the insert in the first section without deformation in the first section, the diameter being such that housing of the insert in the second section causes a swelling of the second section, wherein a pressure on the first section enables folding of the first section by centrifugal radial extension. 
     
     
         20 . A fastener according to  claim 16  wherein the insert includes a projection, and the head defines a tapered recess configured to accept deformed material from the projection. 
     
     
         21 . A fastener according to  claim 16  wherein the insert defines flutes for facilitating crimping of the insert within the sleeve. 
     
     
         22 . A fastener according to  claim 16  wherein the first section of the sleeve defines a first outer diameter, the second section of the sleeve defines a second outer diameter, the second outer diameter being greater than the first outer diameter. 
     
     
         23 . A fastener according to  claim 16  wherein the insert defines a recess at an end of the insert. 
     
     
         24 . A fastener according to  claim 16  wherein the insert defines a recess at an end of the insert, and another recess at an opposite end of the insert. 
     
     
         25 . A fastener according to  claim 16  wherein the insert defines a beveled end. 
     
     
         26 . A fastener according to claim wherein the insert defines an annular groove. 
     
     
         27 . A fastener according to  claim 16  wherein the insert defines a first diameter over a first part of a length of the insert, a second diameter over a second part of the length, and a third diameter over a third part of the length, the second diameter being larger than the first diameter, the third diameter being larger than the first diameter, the first part being between the second and third parts, the first part constituting most of the length of the insert. 
     
     
         28 . A fastener according to  claim 16  wherein the sleeve is made of metal, and the insert is made of plastic, the insert including a diameter enabling housing of the insert in the first section without deformation in the first section, the diameter being such that housing of the insert in the second section causes a swelling of the second section, wherein a pressure on the first section enables folding of the first section by centrifugal radial extension. 
     
     
         29 . A fastener according to  claim 16  wherein the first section of the sleeve is configured to form a bulb, thereby crimping the insert inside the sleeve, wherein the first section of the sleeve is configured to engage the insert before forming the bulb, while enabling a part of the insert to project from the sleeve, thereby enabling the head, sleeve, and insert to be managed as an integrated unit. 
     
     
         30 . A fastener according to  claim 16  wherein the first section of the sleeve is configured to form a bulb, thereby crimping the insert inside the sleeve, wherein the first section of the sleeve includes means for engaging the insert before forming the bulb, while enabling a part of the insert to project from the sleeve, thereby enabling the head, sleeve, and insert to be managed as an integrated unit. 
     
     
         31 . A fastener according to  claim 30  wherein the means for engaging includes a plurality of deformations in the first section of the sleeve. 
     
     
         32 . A fastener configured to assemble parts of composite materials, the fastener comprising:
 a head;   a sleeve including
 a first section defining a first inner diameter, and a first outer diameter, and 
 a second section between the first section and the head, the second section defining a second inner diameter, the second inner diameter being less than the first inner diameter, and a second outer diameter, the second outer diameter being greater than the first outer diameter; and 
   an insert defining a diameter enabling housing of the insert in the first section without deformation in the first section, the insert defining a first end, the first end defining a first recess, and a second end, the second end defining a projection, the projection defining a second recess,   wherein the head defines a head recess configured to accept deformed material from the projection of the insert,   wherein housing of the insert in the second section causes a swelling of the second section, and a pressure on the first section enables folding of the first section by centrifugal radial extension thereby crimping the insert inside the sleeve,   wherein the first section of the sleeve is configured to engage the insert before folding, while enabling a part of the insert to project from the sleeve, thereby enabling the head, sleeve, and insert to be managed as an integrated unit.   
     
     
         33 . A fastener for assembling parts made from composite materials, the fastener comprising an insert and a sleeve adapted to at least partially contain the insert and including an end provided with a head and a tubular end able to be deformed with a view to constituting a bulb on one side of the materials to be assembled,
 the sleeve being configured to be introduced and held in a hole passing through the materials to be assembled, with the head in abutment on the rims of the end of the hole and so that the tubular end projects therefrom on the other side,   wherein the sleeve comprises a hollow core including two different sections, a first section starting from the tubular end to be deformed including a first diameter and a second section starting at the end of the first section and with a lesser diameter,   the insert does not have a functional axial bearing surface for purposes of radial swelling of the sleeve in a hole but the diameter of which enables housing thereof without deformation in the first section of the hollow core and enables forcible housing thereof in the second section,   so that when the insert is axially introduced into the second section, the second section swells radially inside the hole and a recess defined by the second section is occupied by the insert,   and when a pressure is provided at the end of the sleeve, the first section is deformed in order to ensure folding thereof by centrifugal radial extension.