Off-angle screw engagement
OwnerThierry M. Giornoinventor
Life of this patent
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Abstract
A screw engagement system comprising a screw and a driver. The screw may comprise a recess in the screw head and a plurality of grooves arranged circumferentially around and formed radially outwardly into the screw head from an inner circumferential surface of the screw head recess. The driver may comprise a driver head having the general shape of a spherical frustum and including a plurality of splines that engage the screw head recess grooves and transmit torque and impart rotational motion to the screw therethrough.
Claims11
A screw engagement system for transmission of torque and rotational motion from a screw driver to a screw, the system comprising:
- a screw comprising a screw shaft axially extending from a screw head, and a screw head recess formed axially into the screw head from an end surface of the screw head, the screw head recess including a plurality of screw head recess grooves arranged circumferentially around and formed radially outwardly into the screw head from an inner circumferential surface of the screw head recess;
- and
- a driver comprising a driver head having the general shape of a spherical frustum and including a plurality of splines that are defined by driver head grooves formed into and arrayed circumferentially around the driver head, and that are configured to engage the screw head recess grooves and transmit torque and impart rotational motion to the screw therethrough.
A screw comprising:
- a screw shaft axially extending from a screw head;
- and
- a screw head recess formed axially into the screw head from an end surface of the screw head, the screw head recess including six screw head recess grooves arranged circumferentially around and formed radially outwardly into the screw head from an inner circumferential surface of the screw head recess, the screw head recess being configured:
- to receive a driver comprising a driver head having the general shape of a spherical frustum and including a plurality of driver head splines that are defined by driver head grooves formed into and arrayed circumferentially around the driver head, the screw head recess grooves being configured and positioned to receive and engage the driver head splines and to receive torque transmission and rotational motion therethrough;
- and
- to receive a driver comprising a driver head having the general shape of a hexagonal prism and including six driver head corners that are defined by intersections of six facets arrayed circumferentially around the driver head, the screw head recess grooves being configured and positioned to receive and engage the driver head corners and to receive torque transmission and rotational motion therethrough.
Dependencies are inferred from the claim text.