Quick- disconnect fastening system
AssigneeLiberty Hardware Mfg. Corp.
InventorsEarl David FORREST, Sagar Kishor GIRI, Jegatheesan MOHANDOSS
Life of this patent
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Abstract
A fastener assembly is provided having a cylindrical shank with a plurality of annular grooves formed along a length of the shank. A plurality of elongated ribs extends perpendicular to the grooves along the length. A fastener disc is provided with a central opening with a diameter less than a cylindrical shank diameter wherein an inner edge of the central opening includes a contact surface. The fastener disc is retained on the fastener portion in a locked position when the contact surface engages one of the plurality of grooves with a friction fit. The fastener disc is rotated to a release position so that the elongated rib contacts the inner edge thereby releasing the contact surface from the grooves.
Claims20
A quick-disconnect fastener assembly comprising:
- a mating part comprising:
- a hardware portion;
- and
- a fastener portion extending opposite the hardware portion and having a cylindrical shank extending along a longitudinal direction, the shank having a retention feature;
- and
- a fastener disc with a central opening having an inner contact surface, wherein the fastener disc is pushed onto the shank and retained in a locked position when the inner contact surface engages the retention feature on the shank, and
- wherein the fastener disc is disconnected from the mating part by rotation of the disc thereby releasing the inner contact surface from the retention feature.
A fastener assembly comprising:
- a cylindrical shank with at least one groove formed therein;
- and
- a fastener disc with a central opening having an inner contact surface,
- wherein the fastener disc is retained on the shank in a locked position when the inner contact surface engages the groove;
- and
- wherein the fastener disc is rotated to a release position to release the inner contact surface from the groove.
A fastener method comprising:
- providing a fastening portion with a cylindrical shank with a plurality of annular grooves formed along a length of the shank and a plurality of elongated ribs oriented along the shank that extend perpendicular to and intersecting the grooves;
- providing a fastener disc with a plurality of deflectable tabs wherein an inner edge of each deflectable tab defines a central opening of the fastener disc with a diameter less than a cylindrical shank diameter;
- inserting the fastening portion into the central opening disc;
- and
- pushing the fastening portion to a locked position where of deflectable tabs is engaged with one of the plurality of grooves with an interference fit
Dependencies are inferred from the claim text.