Proposed is a foldable hinge module for a portable terminal, and more particularly, a foldable hinge module for a portable terminal that can easily unfold or fold a flexible display mounted on the portable terminal. In the foldable hinge module for a portable terminal, the flexible display can be smoothly unfolded or folded as the first rotary plate and the second rotary plate are easily rotated in the Y axis direction, by using the gear set part engaged with the first gear part formed in the first rotary plate and the second gear part formed in the second rotary plate to be operated.

A torque hinge for pivotally connecting two objects has an inner cable guide that provides electrical connection of the objects. The inner cable guide has at the interface a reversibly connectable electrical connector element pair. The torque hinge has a hollow-pin element, a friction element and a first and second bush element. The hollow-pin element is arranged in the first bush element at one end and extends into the second bush element at the other end. The friction element is arranged between the first and second bush elements. The hollow-pin element is connected at one end to the first bush element for conjoint rotation and is pivotably received in the second bush element at the other end, or the hollow-pin element is formed as a free-running pin that is pivotably received in the first bush element at one end and in the second bush element at the other end.

A hinge assembly, including a rotating shaft and a pair of cams, is provided. The cams are sleeved on the rotating shaft so as to be rotatable relative to each other. The pair of cams respectively has a first flat surface and a second flat surface facing each other, and a curved surface adjacent to the first flat surface and the second flat surface. The first flat surface of one of the cams passes by the curved surface to move from one flat surface to the other flat surface of the other cam, so as to enable the pair of cams to move relatively away or closer along an axial direction of the rotating shaft. The curved surfaces of the cams are in surface contact when the first flat surface passes by the curved surface. A portable electronic device is also provided.

A hinge device is adapted to be installed between two machine bodies that are mounted with a flexible display. The hinge device includes a base member, two rotating modules mounted respectively to opposite sides of the base member and adapted for the machine bodies to be mounted respectively thereto, and a central support plate disposed above the base member and connected between the rotating modules. The central support plate is drivable by the rotating modules to move relative to the base member from a supporting position, where the flexible display is flat and is supported thereby from below, to a receding position, where a display receiving space is provided for receiving a bent portion of the flexible display.

A torque-variable single-shaft rotary shaft structure with multiple frictional pairs includes a pivot shaft. A first support is secured to a pivot shaft and a second support is disposed on the pivot shaft. An adjustment wheel assembly, a frictional assembly and an elastic assembly are fitted on the pivot shaft. The adjustment wheel assembly and the frictional assembly have a first adjustment wheel and a second frictional member synchronously movable with the first support and a second adjustment wheel and a first frictional member synchronously movable with the second support. When the first and second supports are rotated, the first and second adjustment wheels are driven to contact and abut against each other so as to provide axial action forces. The frictional assembly has multiple first and second frictional members, which are alternately arranged in frictional contact with each other to form multiple frictional pairs.

The description relates to hinged devices, such as hinged computing devices. One example can include first and second portions that rotate around a hinge shaft that is fixedly secured to the first portion and rotationally secured to the second portion. The second portion defining a first contact surface spaced apart from a second contact surface. Multiple friction clips friction fit around the hinge shaft and rotating with the hinge shaft between the first contact surface and the second contact surface.

An electronic device may have a fiber composite friction hinge with first and second members that rotate relative to each other about a hinge axis. The fiber composite hinge may have first and second sets of interdigitated elongated fingers. Holes in the elongated fingers may receive a shaft of a fastener. The fastener may be tightened to squeeze the elongated fingers together along the hinge axis. The fiber composite hinge may be formed from a fiber composite material such as carbon fiber composite material. Fibers in the composite material may be embedded in binder such as polymer binder. The fibers may wrap around the holes and fold back on themselves in the fingers. Actuators may be provided to adjust the positions of portions of the hinge members. The electronic device may have a flexible layer such as a flexible display that overlaps the hinge structure.

A hinge module includes a plurality of discs, a plurality of friction plates and a restraining member. The discs are eccentrically connected to each other. Each of the friction plates has a circular hole, each of the friction plates is rotatably disposed on one of the discs through the circular hole, and the friction plates contact each other. The restraining member is disposed on the friction plates.

A hinge capable of widely expanding includes an arc-shaped guide member, two movable members and two torsion generating members, wherein first guide rails are formed on two sides of the arc-shaped guide member, and a circular displacement track is defined by an arc center of the arc-shaped guide member. Each of the two movable members, respectively positioned on two sides of the arc-shaped guide member, is provided with a working surface contacting one of the first guide rails and an arc-shaped through hole penetrating therethrough. The arc center of the arc-shaped through hole is the same as the arc-shaped guide members'. Each of the two torsion generating members is assembled to the arc-shaped guide member through the arc-shaped through hole to which one of the two movable members belongs. The two movable members are guided by the arc-shaped guide member to move on the circular displacement track.

A portable information handling system includes a variable torque hinge that increases torque to resist hinge rotation when the information handling system housing rotates to a writing position, such as rotation to a range of between 300 and 350 degrees. In one embodiment, a sequential hinge rotates in the writing range about one axle that has increased friction in the desired writing range generated by a cam having a variable surface area and depth to work a variable friction between a friction structure and axle end cap.