This patent relates to hinged devices, such as computing devices. One example includes a first portion and a second portion. A dynamic fulcrum hinge includes a flexible material extending between the first portion and the second portion and configured to begin rotation proximate to the first portion and finish rotation proximate to the second portion when the first portion is rotated toward the second portion.

A coupling assembly includes: a screw rod; a holder mounted on the screw rod; a shaft sleeve set and a connection rod set. The shaft sleeve set includes: a first shaft sleeve embedded in the holder; and a second shaft sleeve fitted over the screw rod at an outer side and slidable on the screw rod. The connection rod set includes: a first connection rod having an end fixedly coupled to the first shaft sleeve; and a second connection rod having an end fixedly coupled to the second shaft sleeve, the second connection rod and the first connection rod crossing and being coupled at a junction. The first connection rod and the second connection rod cross to form an angle.

A hinge includes a base frame unit and two rotatable axle units. The base frame unit includes a base seat and a protective cover. The base seat has two guideways having upper and lower segments, and two shaft sliding slots. The protective cover has a base wall and two pivot pins. Each axle unit rotatably extends through the base seat, and includes a hinge shaft rotatably extending through the shaft sliding slot, a first rotary member non-rotatably fitted to the hinge shaft, a second rotary member connected with the first rotary member, and a support bracket non-rotatably fitted to the hinge shaft. The first rotary member has a guide key slidably engaged in the guideway. The second rotary member is pivoted to the pivot pin and has an engaging hole for receiving the guide key.

An electronic device and method are disclosed. The electronic device includes a housing defining an opening, a driving actuator, a slide door moveable to selectively cover and expose the opening, a link connecting the slide door and the driving actuator, the link linearly moveable in accordance with a driving operation of the driving actuator to move the slide door, a forcible open blocker that is moveable to restrict opening of the slide door when the opening is closed, and to release blockage of the opening of the slide door based on a linear movement of the link, and a processor. The processor implements the method, including: receiving an external input signal and identify whether to expose or cover the opening based on the external input signal, and activating the driving actuator to expose or cover the opening according to a result of the identification.

A hinge comprises a first body and a second body irremovably rotatably coupled along a rotational axis of the hinge. The first body and the second body comprise opposing radial bearing surfaces engaged only within a working rotational range of the hinge for fixing the relative position of the first body and the second body in a radial direction with respect to the rotational axis of the hinge. The first body and the second body further define opposing axial bearing surfaces engaged only within the working rotational range of the hinge for fixing the relative position of the first body and the second body in an axial direction with respect to the rotational axis of the hinge. The opposing radial bearing surfaces and the opposing axial bearing surfaces are not engaged outside of the working rotational range.

A portable electronic device including a first body, a second body, a first hinge connected to the first body, a second hinge connected to the second body, and a linking rod is provided. The linking rod has a first end and a second end opposite to each other, wherein the first end is pivoted to the first hinge eccentric to a rotation axis of the first hinge, and the second end is pivoted to the second hinge eccentric to a rotation axis of the second hinge. The first and the second bodies are rotated to be closed to or far away from each other by the first hinge, the second hinge, and the linking rod.

A pivoting assembly for an electronic device, being a clickable-open and clickable-shut cover or shield with click-step positioning includes a pivoting shaft extending along an imaginary axis, an inner movable member, an intermediate movable member, and an outer stationary member concentrically surrounding the imaginary axis. First positioning structures and first engaging structures are connected to one of the inner movable member and the intermediate movable member and a number of second positioning structures and second engaging structures are also so connected. When the pivoting shaft is rotated in an opening direction, the first positioning structures compress and slide across the first engaging structures. When the pivoting shaft is rotated in a closing direction, the second positioning structures compress and slide across the second engaging structures.

A document cover closer provided with a fire spread preventing cover capable of almost entirely covering internal features of the document cover closer, in order to prevent exposure of the internal features to flare in case of an ignition at peripheral electrical equipment, as well as office equipment using such a document cover closer. The document cover closer comprises a fire spread preventing cover capable of almost entirely covering internal features with their parts coated with oil being exposed and of almost securely preventing a contamination of an end of a document placed on a document platen by lubricant oil or rust-preventive oil. The document cover closer comprises an attaching part attached to the main body side of office equipment having a document cover; a supporting part rotatably and pivotally supported on the attaching part via a first hinge shaft; and a lift part attached to the document cover.

A computing device includes a four-body hinge. Abase member is connected to abase and an upper member is connected to a display. A first linkage and a second linkage are connected to the base member and the upper member. As the display moves relative to the base, the four-body hinge resists rotation of the display, thereby stabilizing the display during use by the user.

Disclosed is a hinge for an inner flexible screen mobile terminal, the hinge comprising a left support structure, a right support structure and a middle support structure, a pair of left connecting arms and a pair of right connecting arms, and a left rotatable support member and a right rotatable support member, wherein the left connecting arms and the right connecting arms are respectively rotatably connected on the left side and the right side of the middle support structure; and the left rotatable support member and the right rotatable support member are rotated downwards to a lower position to leave a space for accommodating a bent portion of the flexible screen when the hinge is folded, and when the hinge is rotated to a state corresponding to the spreading of the flexible screen, the left rotatable support member and the right rotatable support member are rotated to a higher position, and the left support structure and the right support structure are respectively provided with a rotation guide structure for the left rotatable support member and the right rotatable support member. The hinge of the present invention has a simple and reliable structure, and when applied to a mobile terminal such as a mobile phone, an e-book or a computer, the hinge can be used as both a hinge and flexible screen support structure therein.