A resistance hinge includes a first hinge bracket, a fixing shaft fastened in the first hinge bracket, a locating holder surrounding the fixing shaft, a friction part, a second hinge bracket and a transmission module. The friction part is formed in a hollow cylinder shape and surrounds the locating holder together with the fixing shaft. The second hinge bracket is pivotally mounted on the first hinge bracket. The transmission module is connected between the friction part and the second hinge bracket.

A pivot hinge includes a spring housing with a central tube, a spring assembly, an upper mounting plate, and a lower mounting plate. A pivot pin is positioned within the central tube and is coupled to a torsion spring. A top end of the pivot pin is received within a central channel of a spring bushing. The spring bushing has a cylindrical main portion and a undulating ridge forming three radially positioned high areas or tongues and three radially positioned low areas, troughs or grooves. The grooves are configured to receive or mesh with interior steps in the central tube to prevent relative rotation between the spring bushing and the central tube Each tongue also includes a spring mounting recess therein. The top end of the cylindrical main portion extends through and is journalled within the top opening of the central tube.

A vehicle console assembly includes a body that defines a cutout. The cut out includes a contact surface. A lid is operably coupled to the body and includes a connector that defines an engagement member. The lid is operable between a raised position, a lowered position, and an intermediate engaging position therebetween defined by a predefined opening angle. The engagement member is space-apart from the context surface when the lid is in the lowered position and engages the contact surface when the lid is in the intermediate engaging position. A biasing member is disposed proximate the connector. A hinge pin extends through the cutout, the biasing member, and the engagement member.

A vehicle console assembly includes a body that defines a cutout. The cut out includes a contact surface. A lid is operably coupled to the body and includes a connector that defines an engagement member. The lid is operable between a raised position, a lowered position, and an intermediate engaging position therebetween defined by a predefined opening angle. The engagement member is space-apart from the context surface when the lid is in the lowered position and engages the contact surface when the lid is in the intermediate engaging position. A biasing member is disposed proximate the connector. A hinge pin extends through the cutout, the biasing member, and the engagement member.

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.

A double-screen rotary shaft structure includes two synchronous spiral channels disposed on the link shafts. Asynchronous assembly is slidably pivotally fitted on the two link shafts. Two bosses are disposed on the synchronous assembly and respectively inlaid in the spiral channels of the link shafts. Two connection members are respectively securely connected with the two link shafts. Two link assemblies are respectively pivotally fitted on the link shafts to synchronously move with the synchronous assembly. Two slide members are attached to lower sides of the connection members and formed with oblique slots. A guide slide connection member is disposed in each oblique slot and connected with the link assembly. The middle sections of two links are pivotally disposed on the connection members. Each link has a driving end pivotally connected with the link assembly and a driven end to drive the slide member.

In one example, a friction hinge includes a link connected to a slide slot of a first base with a movable shaft and connected to a base friction mechanism of a second base with a link friction mechanism, where the link includes a joint positioned between the movable shaft and the link friction mechanism. In another example, a friction hinge system includes a first link connected to a first slide slot of a first base with a first movable shaft and connected to a first base friction mechanism of a second base with a first link friction mechanism, a second link connected to a second slide slot of the second base with a second movable shaft and connected to a second base friction mechanism of the first base with a second link friction mechanism, and a joint shaft to connect the first link to the second link at a joint.

In one example, a friction hinge includes a link connected to a slide slot of a first base with a movable shaft and connected to a base friction mechanism of a second base with a link friction mechanism, where the link includes a joint positioned between the movable shaft and the link friction mechanism. In another example, a friction hinge system includes a first link connected to a first slide slot of a first base with a first movable shaft and connected to a first base friction mechanism of a second base with a first link friction mechanism, a second link connected to a second slide slot of the second base with a second movable shaft and connected to a second base friction mechanism of the first base with a second link friction mechanism, and a joint shaft to connect the first link to the second link at a joint.

The application provides a hinge structure comprising a first connecting piece provided with a slot and a second connecting piece provided with a rotating shaft. An inner wall of the slot is provided with a limiting slot and an outer surface of the rotating shaft is convex to form a clipping strip; the clipping strip is inserted into the limiting slot to limit a relative rotation angle between the first connecting piece and the second connecting piece. The present application also provides a packaging box comprising the above hinge structure. The hinge structure and the packing box are provided with a limiting slot in the slot and a clipping strip on the rotating shaft. Through the cooperation between the clipping strip and the limiting slot, the relative rotation angle between the first connecting piece and the second connecting piece is fixed and the reliability of the hinge structure is improved.

One end of first and second arms 30 and 40 are rotatably connected to a first hinge body 10 and a second hinge body 20, respectively. The other end of the first arm is guided by a second guide 25 of the second hinge body and the other end of the second arm is guided by a first guide 15 of the first hinge body. Friction torque is applied on the second hinge body by the friction plate 60. The first guide has a main guide portion 15x and a sub-guide portion 15y that is connected to an end of the main guide portion and draws an arc centered on the first shaft member. When the other end of the second arm is on the sub-guide portion, frictional resistance is not received, so that the second hinge body is automatically rotated by the urging member 70.