Portable information handling system low height mono barrel hinge
A portable information handling system rotationally couples housing portions with a mono barrel hinge having sequential axle rotation about 360 degrees. A dual eccentric shaft hinge element rotates each axle about a cable routed between the axles so that a full 360 degrees of rotation is achieve with a thin height profile. Each axle shaft has a flat face that is maintained adjacent the cable rotating with an eccentric pattern relative to the cable.
1. An information handling system comprising:
first and second housing portions;
processing components disposed in at least one of the first and second housing portions and operable to process information;
a display disposed in at least one of the first and second housing portions, the display interfaced with the processing components and operable to present the information as visual images;
a cable communicating information between the first and second housing portions; and
a hinge rotationally coupling the first and second housing portions to each other, the hinge having a barrel with opposing ends and a sequential hinge element at each opposing ends, each sequential hinge element having first and second axles coupled to a sequencer, each axle having a flat surface facing the cable, the sequencer rotating the axles through 360 degrees of rotation of the housing portions so that the flat surface of each axle remains facing the cable.
2. The information handling system of claim 1 further comprising a guide disposed between the first and second axles, the cable routed from the first housing portion around an end of the first axle to the guide and around the second axle to the second housing portion.
3. The information handling system of claim 2 wherein the sequencer rotates the first and second axles as eccentric shafts.
4. The information handling system of claim 2 wherein the guide integrates within the barrel, the barrel enclosing around the hinge elements to capture the cable.
5. The information handling system of claim 4 further comprising a speaker integrated in the barrel between the hinge elements.
6. The information handling system of claim 4 further comprising a display integrated in the barrel between the hinge elements.
7. The information handling system of claim 1 wherein:
the processing components include a graphics processor integrated in the first housing portion;
the display integrates in the second housing portion; and
the cable interfaces the graphics processor and display to communicate information from the graphics processor to the display for presentation on the display as visual images.
8. The information handling system of claim 7 further comprising a keyboard integrated in the first housing portion and operable to accept key inputs.
9. The information handling system of claim 8 wherein the sequencer rotates about the first axle proximate the first housing portion from the closed position to a predetermined open position before rotation about the second axle proximate the second housing portion.
10. A method for rotationally coupling first and second information handling system portions to each other, the method comprising:
coupling first and second hinge elements to opposing ends of a barrel member;
coupling the first and second hinge element to the first and second information handling system portions;
routing a cable from the first to the second information handling system portions through the first hinge element, the first hinge element having first and second axles, the first and second axles having a flat side and a rounded side, the cable routed between the first and second axles adjacent the flat side of the first and second axles; and
maintaining the first and second axle flat side adjacent the cable through 360 degrees of rotation of the first and second information handling system housing portions relative to each other.
11. The method of claim 10 wherein the maintaining the first and second axle flat side adjacent the cable through 360 degrees of rotation of the first and second information handling system housing portions relative to each other further comprises:
rotating the first information handling system housing portion 180 degrees relative to the second information handling system housing portion about the first axle while preventing rotation about the second axle; and
rotating the first information handling system housing portion 180 degrees relative to the second information handling system housing portion about the second axle while preventing rotation about the first axle.
12. The method of claim 10 wherein the maintaining the first and second axle flat side adjacent the cable through 360 degrees of rotation of the first and second information handling system housing portions relative to each other further comprises rotating the first and second axles about an axis aligned with the flat side.
13. The method of claim 10 wherein the routing the cable further comprises:
integrating a cable guide in the barrel member between the first and second axles; and
routing the cable adjacent the first axle, around the cable guide and adjacent the second axle.
14. The method of claim 10 wherein the first and second axles rotate with an eccentric motion about the cable.
15. The method of claim 10 further comprising:
integrating a keyboard in the first information handling system portion;
integrating a display in the second information handling system portion; and
sequencing the first axle adjacent the keyboard to rotate from a closed position to a predetermined open position before rotating the second axle adjacent the display from the open position to a tablet position.
16. The method of claim 15 wherein the cable comprises a display cable that communicates display information from a graphics processor to the display.
17. A hinge comprising:
a barrel element having opposing ends;
first and second hinge elements integrated into the barrel element at the opposing ends, each hinge element having a sequencer that sequences movement of first and second axles, each axle having a flat surface; and
a cable routed through the first and second axles of at least one of the first and second hinge elements;
wherein the sequencer coordinates rotation about the first and second axles to maintain each flat surface adjacent the cable.
18. The hinge of claim 17 wherein the cable comprises a display cable.
19. The hinge of claim 17 further comprising a cable guide integrated in the barrel element and aligned to extend between the first and second axles, the cable routed around the cable guide.
20. The hinge of claim 17 further comprising a speaker integrated in the barrel element.