Claims
- 1. Apparatus for applying a fastener which includes a pin member having a head and a shank and a plurality of grooves therein and a tubular member adapted to be located over the shank of the pin member and swaged into some of the grooves, said apparatus comprising a generally tubularly shaped anvil member having a swaging aperture through a forward portion thereof for swaging the tubular member to the pin member, a generally tubular collet member slidably located within said anvil member and having an axial bore terminating at its forward end in a tapered bore portion, a plurality of chuck jaws defining a frusto conical outer surface adapted to generally matably fit within said tapered bore portion of said collet and each having an inner surface with a plurality of teeth thereon adapted to grip others of the grooves of the pin member, a tubular sleeve member slidably disposed in said axial bore including elastomeric means for resiliently fixedly securing said chuck jaws to a forward end of said tubular sleeve for resilient, radial movement between open and closed positions.
- 2. The apparatus of claim 1 with said tubular member being substantially coextensive with said axial bore of said collet member.
- 3. Apparatus for applying a fastener which includes a pin member having a head and a shank and a plurality of grooves therein and a tubular member adapted to be located over the shank of the pin member and swaged into some of the grooves, said apparatus comprising a generally tubularly shaped anvil member having a swaging aperture through a forward portion thereof for swaging the tubular member to the pin member, a generally tubular collet member slidably located within said anvil member and having an axial bore terminating at its forward end in a tapered bore portion, a plurality of chuck jaws defining a frusto conical outer surface adapted to generally matably fit within said tapered bore portion of said collet and each having an inner surface with a plurality of teeth thereon adapted to grip others of the grooves of the pin member, a tubular sleeve member slidably disposed in said axial bore including elastomeric means for resiliently fixedly securing said chuck jaws to a forward end of said tubular sleeve for resilient, radial and axial movement between open and closed positions, said tubular sleeve and said chuck jaws being free to axially float within said collet bore from a first position in which said jaws are engaged with said tapered bore portion and are radially closed thereby and a second position in which said jaws are disengaged from said tapered bore portion and are in a radially open condition, said jaws as secured to said tubular sleeve normally being held in said open condition.
- 4. The apparatus of claim 3 with said tubular member being substantially coextensive with said axial bore of said collet member.
- 5. Apparatus for applying a fastener which includes a pin member having a head and a shank and a plurality of grooves therein and a tubular member adapted to be located over the shank of the pin member and swaged into some of the grooves, said apparatus comprising a generally tubularly shaped anvil member having a swaging aperture through a forward portion thereof for swaging the tubular member to the pin member, a generally tubular collet member slidably located within said anvil member and having an axial bore terminating at its forward end in a tapered bore portion, a plurality of chuck jaws defining a frusto conical outer surface adapted to generally matably fit within said tapered bore portion of said collet and each having an inner surface with a plurality of teeth thereon adapted to grip others of the grooves of the pin member, a tubular sleeve member slidably disposed in said axial bore, said chuck jaws being individually resiliently fixed secured to a forward end of said tubular sleeve, said tubular sleeve and said chuck jaws being free to axially float within said collet bore from a first position in which said jaws are engaged with said tapered bore portion and are radially closed thereby and a second position in which said jaws are in a radially open condition, said jaws as secured to said tubular sleeve normally being held in said open condition.
- 6. The apparatus of claim 5 with the length of said axial float being approximately the axial distance between adjacent ones of the others of the grooves of the pin member.
- 7. Apparatus for applying a fastener which includes a pin member having a head and a shank and a plurality of grooves and associated crests therein and a tubular member adapted to be located over the shank of the pin member and swaged into some of the grooves, said apparatus comprising a generally tubularly shaped anvil member having a swaging aperture through a forward portion thereof for swaging the tubular member to the pin member, a generally tubular collet member slidably located within said anvil member and having an axial bore terminating at its forward end in a tapered bore portion, a plurality of chuck jaws defining a frusto conical outer surface adapted to generally matably fit within said tapered bore portion of said collet and each having an inner surface with a plurality of teeth thereon adapted to grip others of the grooves of the pin member, a tubular sleeve member slidably disposed in said axial bore, said chuck jaws being individually resiliently fixed secured to a forward end of said tubular sleeve, said tubular sleeve and said chuck jaws being free to axially float within said collet bore from a first position in which said jaws are engaged with said tapered bore portion and are radially closed thereby and a second position in which said jaws are in a radially open condition, said jaws as secured to said tubular sleeve normally being held in said open condition, said teeth of said jaws having a shape complementary to that of the grooves and crests of the pin member, said jaws in said open condition having said teeth define a minimum diameter opening which is less than the diameter of the crests and greater than that of the grooves whereby the loads required to insert the pin member into said jaws is minimized while providing sufficient interference to preclude said jaws from slipping off the pin member upon relative movement between said collet and said jaws.
- 8. The apparatus of claim 7 with said minimum diameter being approximately the mean diameter between that of the others of the grooves and their associated crests.
- 9. The apparatus of claim 7 with said sleeve being constructed of an elastomeric material.
- 10. A fastening system comprising apparatus for applying a fastener which includes a pin member having a head and a shank and a plurality of grooves and associated crests therein and a tubular member adapted to be located over the shank of the pin member and swaged into some of said grooves, all of said grooves and crests being substantially identical annular combination locking and breakneck grooves defined by cooperating side walls which converge into a selected concave radius portion, said concave radius portion being of a magnitude selected to provide a predetermined stress concentration to facilitate fracture at a selected one of said grooves proximate the outer end of said tubular member; said apparatus comprising a generally tubularly shaped anvil member having a swaging aperture through a forward portion thereof for swaging the tubular member to the pin member, a generally tubular collet member slidably located within said anvil member and having an axial bore terminating at its forward end in a tapered bore portion, a plurality of chuck jaws defining a frusto conical outer surface adapted to generally matably fit within said tapered bore portion of said collet and each having an inner surface with a plurality of teeth thereon adapted to grip others of said grooves of the pin member, a tubular sleeve member slidably disposed in said axial bore, said chuck jaws being individually resiliently fixedly secured to a forward end of said tubular sleeve, said tubular sleeve and said chuck jaws being free to axially float within said collet bore from a first position in which said jaws are engaged with said tapered bore portion and are radially closed thereby and a second position in which said jaws are disengaged from said tapered bore portion and are in a radially open condition, said jaws as secured to said tubular sleeve normally being held in said open condition.
- 11. A fastening system comprising apparatus for applying a fastener which includes a pin member having a head and a shank and a plurality of grooves and associated crests therein and a tubular member adapted to be located over the shank of the pin member and swaged into some of said grooves, at least a predetermined number of said plurality grooves and crests being substantially identical annular combination locking and breakneck grooves defined by cooperating side walls which converge into a selected concave radius portion, said concave radius portion being of a magnitude selected to provide a predetermined stress concentration to facilitate fracture at a selected one of said grooves proximate the outer end of said tubular member, said apparatus comprising a generally tubularly shaped anvil member having a swaging aperture through a forward portion thereof for swaging the tubular member to the pin member, a generally tubular collet member slidably located within said anvil member and having an axial bore terminating at its forward end in a tapered bore portion, a plurality of chuck jaws defining a frusto conical outer surface adapted to generally matably fit within said tapered bore portion of said collet and each having an inner surface with a plurality of teeth therein adapted to grip others of said grooves of the pin member, a tubular sleeve member slidably disposed in said axial bore, said chuck jaws being individually secured to a forward end of said tubular sleeve, said tubular sleeve and said chuck jaws being free to axially float within said collet bore from a first position in which said jaws are engaged with said tapered bore portion and are radially closed thereby and a second position in which said jaws are disengaged from said tapered bore portion and are in a radially open condition, said jaws as secured to said tubular sleeve normally being held in said open condition.
- 12. Apparatus for applying a fastener which includes a pin member having a head and a shank and a plurality of grooves therein and a tubular member adapted to be located over the shank of the pin member and swaged into some of the grooves, said apparatus comprising a generally tubularly shaped anvil member having a swaging aperture through a forward portion thereof for swaging the tubular member to the pin member, a generally tubular collet member slidably located within said anvil member and having an axial bore terminating at its forward end in a tapered bore portion, a plurality of chuck jaws defining a frusto conical outer surface adapted to generally matably fit within said tapered bore portion of said collet and each having an inner surface with a plurality of teeth thereon adapted to grip others of the grooves of the pin member, a tubular sleeve member of an elastomeric material slidably disposed in said axial bore, said chuck jaws being individually resiliently fixed secured to a forward end of said tubular sleeve, said tubular sleeve and said chuck jaws being free to axially float within said collet bore from a first position in which said jaws are engaged with said tapered bore portion and are radially closed thereby and a second position in which said jaws are in a radially open condition, said jaws as secured to said tubular sleeve normally being held in said open condition, the length of said axial float being approximately the axial distance between adjacent ones of the others of the grooves of the pin member, said teeth of said jaws having a shape complementary to that of the grooves and crests of the pin member, said jaws in said open condition having said teeth define a minimum diameter opening which is less than the diameter of the crests and greater than that of the grooves whereby the loads required to insert the pin member into said jaws is minimized while providing sufficient interference to preclude said jaws from slipping off the pin member upon relative movement between said collet and said jaws, said minimum diameter being approximately the mean diameter between that of the others of the grooves and their associated crests.
- 13. A fastening system comprising apparatus for applying a fastener which includes a pin member having a head and a shank and a plurality of grooves and associated crests therein and a tubular member adapted to be located over the shank of the pin member and swaged into some of said grooves, at least a predetermined number of said plurality grooves and crests being substantially identical annular combination locking and breakneck grooves defined by cooperating side walls which converge into a selected concave radius portion, said concave radius portion being of a magnitude selected to provide a predetermined stress concentration to facilitate fracture at a selected one of said grooves proximate the outer end of said tubular member, said apparatus comprising a generally tubularly shaped anvil member having a swaging aperture through a forward portion thereof for swaging the tubular member to the pin member, a generally tubular collet member slidably located within said anvil member and having an axial bore terminating at its forward end in a tapered bore portion, a plurality of chuck jaws defining a frusto conical outer surface adapted to generally matably fit within said tapered bore portion of said collet and each having an inner surface with a plurality of teeth thereon adapted to grip others of said plurality of grooves of the pin member, a tubular sleeve member slidably disposed in said axial bore including elastomeric means for resiliently fixedly securing said chuck jaws to a forward end of said tubular sleeve for resilient radial and axial movement between open and closed positions.
- 14. Apparatus for setting a fastener comprising a pin member having a head and a shank and a plurality of grooves therein and a tubular member adapted to be located over the shank of the pin member and cooperating with the pin member to secure a plurality of workpieces together upon the application of a relative axial force between the pin member and the tubular member, characterized by the fact that said apparatus comprises a generally tubularly shaped anvil member having an aperture extending through a forward portion thereof for applying the relative axial force between the tubular member and the pin member, a generally tubular collet member slidably located within said anvil member and having an axial bore terminating at its forward end in a tapered bore portion, a plurality of chuck jaws defining a frusto conical outer surface adapted to generally matably fit within said tapered bore portion of said collet and each having an inner surface with a plurality of teeth thereon adapted to grip at least some of the grooves of the pin member, a tubular sleeve member slidably disposed in said axial bore, said chuck jaws being resiliently fixedly secured to a forward end of said tubular sleeve, said tubular sleeve and said chuck jaws being free to move axially within said axial bore from a first position in which said jaws are engaged with said tapered bore portion and are radially closed thereby and a second position in which said jaws are in a radially open condition, said jaws as secured to said tubular sleeve normally being held in said open condition.
- 15. The apparatus of claim 14 wherein said tubular sleeve is generally substantially coextensive with said axial bore.
- 16. The apparatus of claim 14 wherein said tubular sleeve and said chuck jaws are free to float in an axial direction a distance approximately equal to the axial distance between adjacent ones of said some of the grooves of the pin member.
- 17. The apparatus of claim 14 further including elastomeric means resiliently securing said chuck jaws to said forward end of said tubular sleeve.
- 18. The apparatus of claim 14 wherein said tubular sleeve is fabricated from an elastomeric material.
Parent Case Info
This is a continuation of application Ser. No. 043,742, filed May 30, 1979, now abandoned , which is a continuation-in-part of my copending patent application Ser. No. 899,591, filed Apr. 24, 1978 and which issued into U.S. Pat. No. 4,208,943 on June 24, 1980.
US Referenced Citations (16)
Foreign Referenced Citations (4)
Number |
Date |
Country |
550230 |
Dec 1942 |
GBX |
555533 |
Aug 1943 |
GBX |
602853 |
Jun 1948 |
GBX |
1188935 |
Apr 1970 |
GBX |
Non-Patent Literature Citations (1)
Entry |
Huck Manufacturing Company Nose Assembly Data Sheet, No. 99-748, and No. 99-1050 |
Continuations (1)
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Number |
Date |
Country |
Parent |
43742 |
May 1979 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
899591 |
Apr 1978 |
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