The description relates to devices that include hinged portions and controlling rotation of the portions. One example can include a display coupled to a first end of an arm. The example can also include a base rotatably secured to a hollow shaft that is fixed to the arm. The hollow shaft defines an axis of rotation of the arm relative to the base. The base can also include first and second opposing axial cam elements positioned on the hollow shaft and a spring positioned on the hollow shaft. The first and second opposing axial cam elements can be oriented relative to one another such that rotation of the arm toward the base causes the first and second axial cam elements to move away from one another along the hollow shaft thereby compressing the spring.

A portable information handling system rotationally couples housing portions with a hinge having an adjustable friction device that adjusts a torque resisting rotation of the housing portions between alternate settings by sending an electronic pulse to an electropermanent magnet. For instance, activation of a magnetic field pulls a lever that compresses compression discs coupled to a hinge axle to increase torque, such as to hold the housing portions in position. An electronic pulse deactivates the magnetic field when an end user desires to rotate the housing portions, such as may be indicated by an end user touch at a housing portion.

An artificial joint with a knee axis including a swing-phase control means having a variable friction-based swing-phase controller. The variable friction-based swing-phase controller may apply different resistances at different ranges of motion by altering the torque applied upon the knee axis by altering any combination, or all of the following: the length of a lever arm and a force applied. This may be done to optimize the swing-phase control of the artificial joint to promote natural and smooth walking gait.

A stand that is attachable to a back surface of an electronic device or a protective case for the electronic device. The stand includes a base portion, two legs, and two pivoting spring arms. Each leg pivots at a leg axis along an arc between a stowed position and an extended position. The two pivoting spring arms are attached to the base portion at a first end and attached to a respective one of the legs at a second end. Each pivoting spring arm is configured to apply a spring force to the leg to, alternately, force leg toward the stowed position or the extended position depending on the starting position of the leg.

A hinge (100) including a first hinge leaf assembly, a second hinge leaf assembly pivotally coupled to the first hinge leaf assembly (101), a spring (138) operatively connected to the first and second hinge leaf assemblies, and a spring tensioning mechanism to adjust the bias of the spring (138). The first hinge leaf assembly includes a first hinge component (101) having a first mounting surface for securing to a first structure and a plurality of first knuckles (114, 115). The second hinge leaf assembly includes a second hinge component having a second mounting surface for securing to a second structure and a second knuckle (123). The spring biases the first hinge leaf assembly and the second hinge leaf assembly toward a closed position, wherein the spring is located with a hollow defined by coaxial alignment of the plurality of first knuckles (114, 115) and the second knuckle (123).

A refrigerator door assembly includes a refrigerator door having a recess. An alignment mechanism includes a plate and a door hinge. The plate is fixedly attached to the door hinge and positioned at least partially within the recess of the refrigerator door. The refrigerator door is movably positionable between at least a first position and a second position relative to the plate to permit adjustment of a location of the refrigerator door relative to the door hinge.

A multistage friction hinge is described. In at least some embodiments, the described hinge enables a support component to be adjustably attached to an apparatus. According to various embodiments, a hinge includes different activity stages where movement of the hinge is based on different activity mechanisms. For instance, the hinge includes different sets of components that form different friction engines that provide resistance to rotational and/or pivoting movement of the hinge.

Technologies are described relating to sequential multi-axis hinges that rotatably secure portions of a computing device. One example can include a set of hinges that rotate around a set of hinge shafts. The example can also include a shuttle cam through which an individual hinge shaft passes. The shuttle cam can be configured to move orthogonally relative to the individual hinge shaft to block rotation of the individual hinge shaft or an adjacent individual hinge shaft.

A hinge assembly for a door, the hinge assembly including a hinge pin arranged to be fixed to the door at one end and having a pin connector part at an opposite second end. A rotation damper connected to a damper connector part arranged to cooperate with the pin connector part for transferring torque around an axis of rotation between the damper connector part and the pin connector part throughout an opening angle of the door, such that a rotational movement of the damper connector part about the axis of rotation in at least a first rotational direction is dampened by the rotation damper. The pin connector part and the damper connection part allow an initial closing angle of rotation of the door before the damper acts on the rotation of the hinge pin, the initial closing angle being at least 2?.

A friction hinge is described. In at least some implementations, the described friction hinge enables a support component to be adjustably attached to an apparatus, such as a computing device. According to various implementations, a friction hinge includes different friction stages where movement of the hinge is based on different activity mechanisms.