A one-piece cast component having at least one integrated attachment part is disclosed. The component includes at least one pin which is rigidly connected to an attachment part; a housing at least partially enclosing the pin in a contactless manner; the pin being arranged in the axial direction between two axial connecting webs and being rigidly connected via the latter to the housing; the pin being arranged in the radial direction between a plurality of radial connecting webs and being rigidly connected via the latter to the housing; wherein the connecting webs are dimensioned in such a way that only the latter break at respective predetermined breaking points when pivoting the attachment part for the first time relative to the housing, whereafter the attachment part, together with the pin, is mounted so as to be pivotable with respect to the housing. The regions of the connecting webs that remain on the housing after the breaking operation prevent the pin from being removed from the housing. The disclosure further relates to a method for producing such a cast component having an integrated attachment part.

Disclosed is a hinge module including a hinge structure having a first sub-hinge structure including a first center bracket and a first hinge bracket that rotates through a specified angle in a first direction and a second sub-hinge structure including a second center bracket and a second hinge bracket that rotates through a specified angle in an opposite direction to the first direction. The first hinge bracket and the second hinge bracket are separated from each other and are disposed between the first center bracket and the second center bracket, and hinge motion of the first sub-hinge structure is performed independently of hinge motion of the second sub-hinge structure. The hinge module and a foldable display device including the hinge module suppress a phenomenon in which the hinge module is opened when the housing structures are twisted, thereby preventing damage to the foldable display device.

A hinge device for supporting an electronic device includes a first portion and a second portion movable relative to the first portion with a biasing element supported by one or the first portion or the second portion. The first portion has an arcuate groove, and the second portion has an arcuate rail configured to complementarily mate with the arcuate groove and slide therein. The biasing element contacts a leading edge of the other of the first portion or second portion, and the first portion and second portion are bistable in a closed state relative to one another and an open state relative to one another based at least partially on a surface profile of the biasing element applying a radial force to the leading edge.

A hinge mechanism being used for a foldable electronic device is provided. The foldable electronic device comprises a first panel body and a second panel body, which are pivotable with respect to each other The hinge mechanism comprises a central plate, a first pivoting element and a second pivoting element. The central plate comprises a first curved section and a second curved section. The first pivoting element is fixed to the first panel body and grips the first curved section. The second pivoting element is fixed to the second panel body and grips the second curved section. When the first pivoting element and the second pivoting element switch between a retracted position and a stretched position, the first panel body and the second panel body change between an unfolded status and a folded status correspondingly.

A tonneau cover comprising: (a) a first panel and a second panel; (b) a hinge located between and connecting the first panel and the second panel; and (c) a cover extending over all or a portion of the first panel, the second panel, or both, and the hinge so that, when the first panel or the second panel rotates about the hinge, the cover forms a portion of the hinge and maintains the integrity of the hinge.

A tonneau cover comprising: (a) a first panel and a second panel; (b) a hinge located between and connecting the first panel and the second panel; and (c) a cover extending over all or a portion of the first panel, the second panel, or both, and the hinge so that, when the first panel or the second panel rotates about the hinge, the cover forms a portion of the hinge and maintains the integrity of the hinge.

Disclosed is a hinge module a hinge structure for a wireless communication device, the hinge structure preventing a rotary structure from being separated from a fixed structure in a flat state and a folded state.

A hinge includes: a base seat; two slide seats that are mounted on the base seat, that are movable between an inner position and an outer position, and that each have a slide rail portion; two rotary members that each have a slide portion being in sliding contact with the slide rail portion of a respective slide seat, and that are respectively rotatable relative to the slide seats; and two coupling mechanisms that are connected between the rotary members and the slide seats, such that rotations of the rotary members drive the slide seats to move between the inner position and the outer position. A distance between the slide seats decreases when the slide seats move from the outer position to the inner position.

A synchronous transmission pivot shaft device has a simplified structure and less assembled components and reduces assembling tolerance/motional space. The synchronous transmission pivot shaft device includes an assembly of a main body, a first operation board and a second operation board disposed on the main body. The first operation board has an obliquely extending arm section. The second operation board has an obliquely extending arm section. The arm sections of the first and second operation boards are respectively received in a first oblique rail and a second oblique rail of the main body. When a user operates the first operation board or the second operation board to move, the first operation board or the arm section thereof and the second operation board or the arm section thereof respectively synchronously move along the first and second oblique rails to achieve opening/closing effect.

A synchronous transmission pivot shaft device has a simplified structure and less assembled components and reduces assembling tolerance/motional space. The synchronous transmission pivot shaft device includes an assembly of a main body, a first operation board and a second operation board disposed on the main body. The first operation board has an obliquely extending arm section. The second operation board has an obliquely extending arm section. The arm sections of the first and second operation boards are respectively received in a first oblique rail and a second oblique rail of the main body. When a user operates the first operation board or the second operation board to move, the first operation board or the arm section thereof and the second operation board or the arm section thereof respectively synchronously move along the first and second oblique rails to achieve opening/closing effect.