Synchronized dual axis pivot hinge
A portable information handling system supports a flexible OLED display film over housing portions rotationally coupled by a hinge by folding the OLED display film over the hinge. Hinge brackets that couple to the housing portions each have a helical member that extends into an associated helical guide of the hinge main body. Hinge bracket rotation translates through the helical guides for synchronized housing rotation. The hinge main body has first and second circular portions extending along its length to define first and second rotation axes about which the hinge brackets pivot so that the display film has space to fold in the closed position.
1. An information handling system comprising:
first and second housing portions;
processing components disposed in one or more of the housing portions, the processing components operable to process information;
a display film interfaced with the processing components and operable to present the information as visual images;
a hinge rotationally coupling the first and second housing portions to support rotation between open and closed positions, the display film disposed over the hinge to fold in the closed position, the hinge having a main body and plural brackets, each bracket having a helical member, the main body having a helical guide for each bracket and sized to accept the helical member, engagement of the helical member in the helical guide translating rotation of the bracket through the helical guide to at least one other of the brackets;
an alignment ridge extending from each helical member; and
an alignment guide defined in the main body at each helical guide;
wherein engagement of the alignment ridge in the alignment guide maintains a lateral position of the bracket relative to the main body during rotation of the bracket.
2. The information handling system of claim 1 further comprising:
a flexible cable interfacing the processing components of the first and second housing portions, the flexible cable coupled in a fixed manner across a bottom side of the main body; and
a cover coupled to the main body and over the flexible cable.
3. The information handling system of claim 2 further comprising:
a motherboard disposed in the first housing portion and supporting a central processing unit that executes instructions to process information; and
a daughterboard disposed in the second housing portion and interfaced with a battery that provides power;
wherein the flexible cable couples to the motherboard and the daughterboard.
4. An information handling system comprising:
first and second housing portions;
processing components disposed in one or more of the housing portions, the processing components operable to process information;
a display film interfaced with the processing components and operable to present the information as visual images;
a hinge rotationally coupling the first and second housing portions to support rotation between open and closed positions, the display film disposed over the hinge to fold in the closed position, the hinge having a main body and plural brackets, each bracket having a helical member, the main body having a helical guide for each bracket and sized to accept the helical member, engagement of the helical member in the helical guide translating rotation of the bracket through the helical guide to at least one other of the brackets;
a torque element coupled to an end of the main body;
a first torque arm rotationally coupled to the torque element and slidingly coupled to a first bracket on a first side of the main body; and
a second torque arm rotationally coupled to the torque element and slidingly coupled to a second bracket on a first side of the main body;
wherein the torque arms translate torque to the brackets in response to rotation of the brackets relative to the main body.
5. The information handling system of claim 4 wherein each torque arm couples to each bracket at a slot formed in the bracket.
6. The information handling system of claim 5 wherein the slot has a non-linear path to generate variable torque.
7. The information handling system of claim 5 wherein the helical members in the open position extend out from the main body to a plane substantially in alignment with the brackets.
8. The information handling system of claim 5 wherein the helical members in the closed position retract into the main body to provide space for the display film to fold.