Technologies are described for a hinge mechanism coupled to at least a dual-display device wherein the displays can rotate with respect to each other through 360 degrees. The hinge mechanism has at least one flexible connection member that follows a generally S-shaped path when the displays are in a tablet position. In some embodiments, a second flexible connection member can be added that follows a mirrored S-shaped path. The S-shaped path of the first flexible connection member and the mirrored S-shape path of the second flexible connection member together create a cross-configuration. In other embodiments, interconnected friction hinges can allow for a free-stop function at any point along the 360 degrees of rotation.

Technologies are described for a hinge mechanism coupled to at least a dual-display device wherein the displays can rotate with respect to each other through 360 degrees. The hinge mechanism has at least one flexible connection member that follows a generally S-shaped path when the displays are in a tablet position. In some embodiments, a second flexible connection member can be added that follows a mirrored S-shaped path. The S-shaped path of the first flexible connection member and the mirrored S-shape path of the second flexible connection member together create a cross-configuration. In other embodiments, interconnected friction hinges can allow for a free-stop function at any point along the 360 degrees of rotation.

A door assembly comprising a hinge post and a hinge stile, the hinge post and hinge stile configured for a first mating configuration and a second mating configuration. The first and second mating configurations enable adjustable placement of a shower door with the hinge post forming an extension below the bottom of the hinge stile in both configurations.

A modular door assembly is adapted for installation on existing open frame vehicles formed of tubular members. A novel tubular hinge construction provides support for the door assembly while allowing rotational movement of the door in use. Alternative vehicle elements may also be secured to and operable on the novel hinge.

A shower-screen pivot device comprises a seating element mountable to a shower surface, and a screen-support element for supporting at least part of a shower screen. The seating element has a first panel-pivot element, and the screen-support element has a second panel-pivot element which is engagable with the first panel-pivot element. When interengaged, the first and second panel-pivot elements are rotatable relative to each other about a panel-pivot axis P which is parallel to a base of the seating element. This enables an installer to semi-erect a shower-screen panel with a lower edge watertightly sealed, and leave it unattended and self-supported whilst attending to other panels.

A transmission shaft set including a plurality of transmission shaft structures is disclosed. Each transmission shaft structure includes a metal pin connecting shaft and a base. The metal pin connecting shaft includes an arc part, a fastening block, a plurality of electrically connecting parts and a plurality of electrically connecting metal pins. The plurality of electrically connecting parts are located on the arc part. The plurality of electrically connecting metal pins are located in the fastening block and electrically connected to the plurality of electrically connecting parts. The base is fastened to the metal pin connecting shaft and includes a fastening groove, at least one fastening part and at least one column. The fastening groove is used for fastening the fastening block. The fastening part is located near the fastening groove. The column is located near the fastening groove and the fastening part.

The disclosure relates to a rotating module and an electronic device. The rotating module includes a support, a rotating member, and an elastic damping member. The rotating member includes a first rotating member and a second rotating member connected to the support respectively. A first end of the damping member is fixed to the support. A second end of the damping member is in contact with the rotating member for providing a damping force for relative rotation of the first rotating member and the second rotating member. The second end is an opposite end of the first end. The support is located between the rotating member and the damping member.

A tonneau cover comprising: (a) a plurality of panels; (b) one or more hinges between each panel of the plurality of panels so that the plurality of panels are rotatably connected together, wherein some or all of the one or more hinges include: (i) a plurality of expansion links that are movably interconnected together, some of the plurality of expansion links including: (1) one or more expansion projections; (2) one or more pockets that receive all or a portion of the one or more expansion projections from an adjacent one of the plurality of expansion links; and (3) one or more expansion stops that restricts movement of the one or more expansion projections from the adjacent one of plurality of the expansion links that extend within the one or more pockets; wherein the one or more hinges rotate so that the one or more hinges form of angle of about 90 degrees or more and about 225 degrees or less.

A tonneau cover comprising: (a) a plurality of panels; (b) one or more hinges between each panel of the plurality of panels so that the plurality of panels are rotatably connected together, wherein some or all of the one or more hinges include: (i) a plurality of expansion links that are movably interconnected together, some of the plurality of expansion links including: (1) one or more expansion projections; (2) one or more pockets that receive all or a portion of the one or more expansion projections from an adjacent one of the plurality of expansion links; and (3) one or more expansion stops that restricts movement of the one or more expansion projections from the adjacent one of plurality of the expansion links that extend within the one or more pockets; wherein the one or more hinges rotate so that the one or more hinges form of angle of about 90 degrees or more and about 225 degrees or less.

A hinged mechanism includes: panels; and hinges connecting respective pairs of the panels to each other in a closed loop so that the hinged mechanism is non-planar, wherein at least one of the hinges is a rolling-contact hinge. All of the hinges can be rolling-contact hinges. The closed-loop hinged mechanism can comprise at least four hinges, each of the at least four hinges being a sole connection between a respective adjacent pair of the panels. A cross section of rolling surfaces of the rolling-contact hinge can be circular. A cross section of rolling surfaces of the rolling-contact hinge can be non-circular.