Fastening device

A fastening device for interconnecting two parts so as to allow rotational movement of the first part relative to the second part, said device comprising a bolt member adapted to be inserted through a hole in the first part and engage the second part, said bolt member defining a longitudinal axis, extended end portions and bolt extension and retraction means intermediary of said end portions whereby said bolt member can be compressed and extended along said axis, and wherein said end portions define opposed part engaging surfaces, said surfaces being in planar alignment such that upon said bolt member being inserted through the hole in the first part and compressed, said extension and retraction means urges said end portions outwardly of the hole enabling said engaging surfaces thereon to engage and bear against opposed portions of the second part, securing the first part to the second part and allowing relative rotation of the first part with respect to the second part.

A fastening device for interconnecting two parts so as to allow rotational movement of the first part relative to the second part, said device comprising a bolt member adapted to be inserted through a hole in the first part and engage the second part, said bolt member defining a longitudinal axis, extended end portions and a spring intermediary of said end portions whereby said bolt member can be compressed along said axis, said end portions defining opposed part engaging surfaces, said surfaces being in planar alignment such that upon said bolt member being inserted through the hole in the first part and compressed, said spring urges said end portions outwardly of the hole enabling said engaging surfaces thereon to engage and bear against opposed portions of the second part, securing the first part to the second part and allowing relative rotation of the first part with respect to the second part.

A fastening device for interconnecting two parts so as to allow rotational movement of the first part relative to the second part, said device comprising a bolt member adapted to be inserted through a hole in the first part and engage the second part, said bolt member defining a longitudinal axis, extended end portions, a first spring intermediary of said end portions whereby said bolt member can be compressed along said axis and at least one second spring intermediary of said end portions whereby said bolt member can be compressed transversely to said axis, said end portions of said bolt member defining opposed part engaging surfaces, said surfaces being in planar alignment such that upon said bolt member being inserted through the hole in the first part, said second spring bears against the first part to retain said bolt member within the hole and said first spring urges said end portions outwardly of the hole enabling said engaging surfaces thereon to engage and bear against opposed portions of the second part, securing the first part to the second part and allowing relative rotation of the first part with respect to the second part.

A fastening device for interconnecting two parts wherein a portion of the first part is disposed within an opening in the second part so as to allow rotational movement of the first part relative to the second part, said device comprising a bolt member adapted to be inserted through a hole in the first part and defining a longitudinal axis, extended end portions and a spring intermediary of said end portions whereby said bolt member can be compressed along said axis, each of said end portions defining a groove therein, said grooves being in parallel and planar alignment and traversing said axis for receiving therein opposed annular portions of the second part disposed about the opening therein such that upon said bolt member being inserted through the hole in the first part and a portion of the first part proximate the hole therein being inserted through the opening in the second part, said spring urges said end portions outwardly of the hole such that the grooves therein receive the opposed annular portions of the second part and bear against said annular portions so as to secure the first part to the second part and allow relative rotation of the first part with respect to the second part about an axis traversing said longitudinal axis of said bolt member.

A fastening assembly comprising a first part, a second part and a fastening device interconnecting said parts so as to allow rotational movement of the first part relative to the second part, said first part defining a hole extending therethrough, said second part defining an opening therein and a perimeter edge portion extending about said opening and wherein said fastening device comprises a bolt member defining a longitudinal axis, extended end portions and a spring intermediary of said end portion whereby said bolt member can be compressed along said axis, each of said end portions defining a groove therein traversing said longitudinal axis, said bolt member extending through said hole in said first part and projecting therefrom, said grooves receiving therein in a slid able fitment opposed portions of said perimeter edge portion of said second part whereby said first part is secured to said second part and is rotatable with respect to said second part about an axis traversing said longitudinal axis of said bolt member.