FASTENER COMPRISING A SNAP-ENGAGEMENT FOOT TO PUSH THROUGH A HOLE IN A PANEL AND AN ENGAGEMENT HEAD CONFIGURED TO JUT OVER SAID PANEL

摘要

The invention concerns a fastener comprising a head and a foot comprising a rigid core and three curved flexible wings each joining said rigid core along one side, having opposite a face of said core an inside surface bordered by a longitudinal edge and by a transverse edge, and having an outside surface respectively tapering towards a pointed end which is an opposite end to said head and towards said transverse edge, on respective opposite sides of an inflection plane, each said wing being configured to bend by elastic deformation towards said core; said core comprising a hub and three small walls extending radially from said hub, whereby said core is star-shaped in cross-section; and said inside surface of each said wing is bordered by a said respective small wall which is remotely opposite said longitudinal edge.

主权项

1. A fastener comprising a snap-engagement foot configured to be pushed axially through a hole in a panel and an engagement head configured to just over said panel when said snap-engagement foot is pushed into said hole, which snap-engagement foot comprises a rigid core and two curved flexible wings each connected to said rigid core along one side, each said curved flexible wing having, opposite a face of said core, an inside surface bordered by a longitudinal edge of said wing and by a transverse edge of said wing in face-to-face relationship with said engagement head; said snap-engagement foot having an outside surface tapering respectively towards a pointed end that is an opposite end to said engagement head and towards said transverse edge of each said wing, on respective opposite sides of an inflection plane oriented transversely to the axial direction of said snap-engagement foot; each said curved flexible wing being configured to bend by elastic deformation towards said rigid core to enable the snap engagement of said foot into said hole; wherein said rigid core comprises a hub and three small walls extending radially from said hub, whereby said rigid core is star-shaped in cross-section; and said fastener further comprises a third curved flexible wing similar to the other two curved flexible wings, said inside surface of each said curved flexible wing being furthermore bordered by a said respective small wall which is remotely opposite said longitudinal edge of said wing.