Hinged chassis with a uniform stress hinge
AssigneeMicrosoft Technology Licensing, LLC
InventorsBrady James Toothaker, Bradley Edgar Clements
Life of this patent
Estimating the term…
Abstract
An electronic device has a chassis with an open state and a closed state. The chassis has a first portion, a second portion, and a perforated hinge. The first portion has a first outer edge and a first inner edge. The second portion has a second outer edge and a second inner edge. The perforated hinge has a plurality of perforations. The perforated hinge is positioned between the first portion and the second portion at the first inner edge and the second inner edge. The first portion, the second portion, and the perforated hinge are integrally formed from a continuous piece and the perforated hinge is deformable to mate the first outer edge to the second outer edge in the closed state.
Claims22
An electronic device, the device comprising:
- a chassis having an open state and closed state, the chassis including:
- a first portion having a first outer edge and a first inner edge;
- a second portion having a second outer edge and a second inner edge;
- and
- a perforated hinge including a plurality of perforations, the perforated hinge positioned between the first portion and the second portion at the first inner edge and the second inner edge, where the first portion, the second portion, and the perforated hinge are integrally formed from a continuous piece and the perforated hinge is deformable to mate the first outer edge to the second outer edge in the closed state, the perforated hinge having uniform internal stress in the closed state, the internal stress varying by less than 10% across at least 90% of the area of the perforated hinge.
An electronic device, the device comprising:
- a chassis having an open state and closed state, the chassis including:
- a first portion having a first outer edge and a first inner edge;
- a second portion having a second outer edge and a second inner edge;
- and
- a perforated hinge including a plurality of perforations, the perforated hinge positioned between the first portion and the second portion at the first inner edge and the second inner edge, where the first portion, the second portion, and the perforated hinge are integrally formed from a continuous piece and the perforated hinge is deformable to mate the first outer edge to the second outer edge in the closed state, wherein the plurality of perforations are configured to allow the hinge to deform more easily than the rest of the chassis, the perforated hinge having uniform surface stress in the closed state, the surface stress varying by less than 10% across at least 90% of the area of the perforated hinge.
An electronic device, the device comprising:
- a chassis having an open state and closed state, the chassis including:
- a first portion having a first outer edge and a first inner edge;
- a second portion having a second outer edge and a second inner edge;
- and
- a perforated hinge including a plurality of perforations, the perforated hinge positioned between the first portion and the second portion at the first inner edge and the second inner edge, where the first portion, the second portion, and the perforated hinge are integrally formed from a continuous piece and the perforated hinge is deformable to mate the first outer edge to the second outer edge in the closed state, wherein the plurality of perforations are configured to allow the hinge to deform more easily than the rest of the chassis, a majority of the perforated hinge having a uniform radius of curvature in the closed state about a longitudinal axis of the perforated hinge, the perforated hinge having uniform surface stress in the closed state such that the surface stress varies by less than 10% across at least 90% of the area of the perforated hinge, and the perforated hinge having uniform internal stress in the closed state such that the internal stress varies by less than 10% across at least 90% of the area of the perforated hinge.
Dependencies are inferred from the claim text.