Wide-angle double-hinge structure

• US 20110099756A1
• Filed: 11/04/2009
• Published: 05/05/2011
• Est. Priority Date: 11/04/2009
• Status: Abandoned Application

• Current Assignee: Tonny Chen
• Original Assignee: Tonny Chen
• Inventors: Chen, Tonny
• Application Number:
  US12/588,977
• Publication Number:
  US 20110099756A1
• Time in Patent Office: Days
• US Class Current: 16/297
• CPC Class Codes: E05D 11/1078 the maintaining means acting parallel to the pivot
• CPC Class Codes: E05D 3/12 with two parallel pins and one arm
• CPC Class Codes: E05Y 2900/606 for electronic devices
• CPC Class Codes: G06F 1/1618 the display being foldable up to the back of the other housing with a single degree of freedom, e.g. by 360° rotation over the axis defined by the rear edge of the base enclosure
• CPC Class Codes: G06F 1/1681 Details related solely to hinges hinge details related to the transmission of signals or power are classified in G06F1/1683

Abstract

A wide-angle double-hinge structure to allow an electronic device to flip at different angles includes a coupling plate, a resistant hinge and a cam hinge. The double-hinge structure couples a first chassis and a second chassis of the electronic device to enable users to selectively flip in an ordinary notebook computer operating condition or a back-to-back operating condition according to their preference. Thus the users can selectively perform input operation in a handheld or desktop fashion.

Claims

1. A wide-angle double-hinge structure comprising a coupling plate, a resistant hinge and a cam hinge, wherein:

the coupling plate has a first retaining hole and a second retaining hole to retain respectively the resistant hinge and the cam hinge;

the resistant hinge has a fastening axle at one end fastened to the coupling plate and a movable sleeve at another end; and

the cam hinge has one end fastened to the coupling plate and a stem running through an anchor plate, a first element, a second element and a spring to be fastened by a nut;

wherein the resistant hinge serves as an axis of a first stage swiveling to be flipped like a notebook computer use condition, the cam hinge serving as another axis for a second stage swiveling to be flipped like a tablet computer in a back-to-back use condition.

2. The wide-angle double-hinge structure of claim 1, wherein the double-hinge structure is installed on an electronic device to couple a first chassis and a second chassis.

3. The wide-angle double-hinge structure of claim 2, wherein the first chassis has a display screen and the second chassis has at least one key zone.

4. The wide-angle double-hinge structure of claim 1 or 2, wherein the sleeve has at least one fastening hole at other side to be fastened to one end of the first chassis.

5. The wide-angle double hinge structure of claim 1 or 2, wherein the anchor plate is fastened to one end of the second chassis.

6. The wide-angle double-hinge structure of claim 1 or 2, wherein the anchor plate has a first bracing plate and a second bracing plate that are perpendicular to each other, the second bracing plate being fastened to one end of the second chassis.

7. The wide-angle double-hinge structure of claim 1, wherein the first retaining hole and the second retaining hole are non-circular through holes.

8. The wide-angle double-hinge structure of claim 1, wherein the sleeve has an axle hole to be run through by a bolt of the fastening axle.

9. The wide-angle double-hinge structure of claim 1, wherein the stem runs through the second retaining hole and has a screw thread section on one end and a polygonal section confined by the second retaining hole to be driven with the coupling plate together.

10. The wide-angle double-hinge structure of claim 1, wherein the first element has a first cam action surface on one side thereof.

11. The wide-angle double-hinge structure of claim 1, wherein the second element has a second cam action surface on one side thereof.