An electronic device includes a first body, a second body, a hinge structure, a pivot bracket, and a third body. The hinge structure is pivotally connected to the first body and the second body, and the second body is adapted to rotate along an axis relative to the first body. The pivot bracket includes a pivot portion and a fixing portion, wherein the pivot portion is pivoted to the hinge structure. The third body is fixed to the fixing portion of the pivot bracket, so that the third body is adapted to rotate along the axis center relative to the first body.

In an example, a retainer may include a first latch, a plunger, a second latch, and a linkage engaging the second latch with the first latch. The plunger may actuate the first latch, and the linkage may actuate the second latch upon the first latch being actuated.

This disclosure provides a middle frame and a flexible display device. The middle frame comprises a first framework component, a second framework component and a flexible component comprising a first chain link element, a second chain link element, a third chain link element, a fourth chain link element, a flexible element and a plurality of rotors. Under collaboration of the plurality of the rotors, the third chain link element is connected to the first framework component and the third chain link element, the third chain link element is connected to the flexible component, the second chain link element is connected to the second framework component and the fourth chain link element, and the fourth chain link element is connected to the flexible component.

A lid controlling apparatus includes a casing having a target region, a lid, and a rod driving mechanism connected between the casing and the lid. The rod driving mechanism includes a first rod pivoted to the casing, a non-rotatable gear fixed to the casing, a driven gear pivoted to a side of the first rod and connected to the lid, and a planetary gear device pivoted to the side of the first rod and engaged with the non-rotatable gear and the driven gear for rotating between lifting and closed positions. When the planetary gear device rotates to the lifting position, the first rod pivots with rotation of the planetary gear device to have a first included angle relative to the casing, and the planetary gear device rotates the driven gear to make the lid have a second included angle relative to the first rod for exposing the target region.

Technologies for a hinge for a dual-screen clamshell computing device include a hinge having a drive shaft and a driven shaft. The drive shaft is fixed to a member such as a secondary display housing of the computing device. The driven shaft is rotatably coupled to another member such as a base housing of the computing device. The hinge includes a one-way needle bearing fixed to the same member as the driven shaft. The driven shaft passes through the one-way needle bearing, which allows free rotation of the driven shaft in one direction and prevents rotation of the driven shaft in the other direction. The hinge includes a coupling joint that selectively couples the drive shaft and the driven shaft. The computing device includes a trigger that is operable to selectively engage and disengage the coupling joint of the hinge. Other embodiments are described and claimed.

There is disclosed a double hinge module comprising a first rotary cam which is rotatable on a first shaft; a first coupling slot extended from one end of the first rotary cam in a direction which gets farther from the first shaft; a second rotary cam which is rotatable on the second shaft parallel with the first shaft in the reverse direction of the first rotary cam; a second coupling slot extended from one end of the second rotary cam which gets farther from the second shaft; and a link having one end coupled to the first coupling slot and the other end coupled to the second coupling slot, wherein when the first rotary cam and the second rotary cam are rotating, the link is linearly movable in parallel with a central line connecting the first shaft and the second shaft with each other, so that the double hinge module may fold the mobile terminal from 0? to 180? naturally like a book.

A coupling member configured to couple a first housing to a second housing is provided. The coupling member includes a first connection part, a second connection part and a linkage part. The first connection part is coupled to the first housing. The second connection part is coupled to the second housing. The linkage part includes a first hinge element, a second hinge element and a hinge shaft. The first hinge element is configured to be coupled to the first connection part, the at least one second hinge element configured to be coupled to the second connection part. The first connection part and the second connection part are close to each other by rotation of at least one of the at least one first hinge element and the at least one second hinge element around the hinge shaft. A housing assembly and an electronic device are also provided.

A stand for an electronic device includes a base, a ring, a hinge, a cover and a hinge receiving wall and an adhesive provided on a surface of the base so that the base can be attached to the electronic device. The ring further includes a cylindrical engaging portion on a portion of the ring. The hinge includes a protrusion and an engaging groove which is formed by a cutout space on a side of the hinge. The hinge is received a shape corresponding to the engaging portion of the ring in the engaging groove. The cover for covering the hinge in the cover is received a shape corresponding to the hinge to snugly fit the hinge therein. The hinge receiving wall receives the protrusion of the hinge.

An opening and closing structure arranged on a casing of an electronic device includes a cover plate and at least one connecting assembly. The cover plate is arranged inside a groove defined in an outer surface of the casing. The connecting assembly includes a connecting rod. A first end of the connecting rod is coupled to the cover plate. A second end of the connecting rod passes through the groove. The connecting rod is slidable within the casing to allow the cover plate to open and close relative to the casing.

A housing assembly is provided. The housing assembly includes a first housing, a second housing, a connecting member and a coupling member. The first housing has a first groove. The second housing has a second groove. The connecting member is coupled between the first housing and the second housing. The first housing and the second housing are close to each other by bending the connecting member so that the first housing is stacked onto the second housing. The coupling member faces to the connecting member and is coupled between the first housing and the second housing. The coupling member is partially received in the first groove and the second groove and is capable of sliding with respect to the first housing and the second housing.