An arm structure of an electronic device is provided. The arm structure includes an arm body, a first cam disposed on one side of the arm body and including a first hole into which at least a portion of a rotating shaft providing a folding operation of the electronic device is inserted, a peak and a valley being formed around the first hole, a second cam arranged side-by-side on a same axis as the one side of the arm body, spaced apart from the first cam, and including a second hole into which at least a portion of the rotating shaft is inserted, a peak and a valley being formed around the second hole, and a connecting part disposed on another side of the arm body and fastened with a rotating part providing rotation of the electronic device.

The unmanned vehicle for delivering an article, includes a housing portion for housing the article, the housing portion being provided with an openable and closable door, the door being closeable on a receiving surface of the article. Then, the unmanned vehicle identifies a direction of wind blown onto the unmanned vehicle; and on the basis of the identified direction of the wind, suppresses closing of the door, opened when the unmanned vehicle is stopped, due to an influence of the wind.

A vehicle door checker integrated with a power drive unit for an automobile door includes a direct current permanent magnet electric motor subject to cogging torque. The electric motor includes a central shaft. The vehicle door checker also includes a cogging torque increase device that is mounted to the central shaft externally of the motor. The cogging torque increase device includes pairs of oppositely magnetized permanent magnets that are mounted coaxially in a stator and rotor respectively about the motor shaft. The stator magnets and the rotor magnets shift into and out of alignment with each other as the shaft is rotated such that the motor is held in multiple discrete stable positions that correspond to check positions of an automobile door.

An exemplary modular hold-open device is configured for use with a door closer comprising a body, a pinion rotatably mounted to the body, and an armature connected with the pinion. The modular hold-open device is configured to be mounted to the door closer, to selectively prevent rotation of the pinion by exerting on the pinion a resistive torque in a door-opening direction, and to cease exerting the resistive torque in response to a door-closing torque on the pinion exceeding a threshold torque to thereby permit rotation of the pinion in the door-closing direction.

A drive device for adjusting a vehicle assembly including an electromotive adjustment drive for adjusting the vehicle assembly and a control device for controlling the adjustment drive, the control device is configured to actuate the adjustment drive in a holding mode for holding the vehicle assembly. It is provided that the control device includes a regulation module for regulating a characteristic variable of the adjustment drive and a control module, wherein the regulation module is configured to determine a correcting variable for regulating the characteristic variable of the adjustment drive in the holding mode with reference to a specified setpoint value, and the control module is configured to evaluate a change of the correcting variable to detect an adjustment request for adjusting the vehicle assembly.

PROBLEM: To provide a retaining device for which the magnitude of resistance when an engaging protrusion moves between elastic pieces can be adjusted. SOLUTION: The retaining device 4 is provided with: a receiving member 5 that is attached to a main body 1, and an engagement member 6 that is attached to a movable body 2. The receiving member 5 has: a base part 10 attached to the main body 1, a first elastic piece 11 supported by the base part 10, and a second elastic piece 12 supported by the base part 10. The engagement member 6 has an engaging protrusion 8 that passes between the first elastic piece 11 and the second elastic piece 12 and is retained at a retaining position P. An interval between the first elastic piece 11 and the second elastic piece 12 becomes narrower than the engaging protrusion 8 at a more forward side than the retaining position P. The first elastic piece 11 bends more easily than the second elastic piece 12 at a more forward side than the retaining position P.

An actuator for a side door of a motor vehicle is described. The actuator brings about automatic opening or closing of the side door depending on a signal. The actuator has an electric motor which, depending on an activation, generates a torque which acts on a hinge of the side door via a transmission. Furthermore, it has a device for holding the side door in any open position, which holding device is realized by a function of the electric motor itself which is designed in such a way that, in the currentless state, it has an increased cogging torque which is configured to a value required as a holding torque for holding the door open. In this way, the actuator is distinguished by a simple and inexpensive design.

An actuator for a side door of a motor vehicle is described, which brings about automatic opening or closing of the side door depending on a signal and has a device for holding the side door in any open position. The holding device is realized by a function of the electric motor itself, according to which function the control device initiates a short-circuit function of the motor phases when the motor is activated, which causes a high current flow and thus a high torque for holding the side door open. By short-circuiting the motor phases, no additional components are required, since this is a special activation function of the motor.

Door assemblies, aircraft including door assemblies, and method for making door assemblies are provided. In one example, a door assembly includes a hinge subassembly and a door pivotally coupled to the hinge subassembly. The door has a channel disposed therein with a holding member disposed proximate a channel distal portion. A sliding member is movably disposed in the channel. An arm has a first portion pivotally coupled to a second hinge subassembly and a second portion pivotally coupled to the sliding member to move the sliding member as the door moves between a closed position and an open position. A stay member is coupled to the sliding member to move towards the holding member which holds the stay member in position when the door is moved to the open position to hold the door open.

A drive arrangement for motorized adjustment of a closure element of a motor vehicle comprising a drive having an electric drive motor and comprising a drive control for actuation of the electric drive, wherein the drive arrangement is connected to a supply voltage, wherein the drive control may include a control unit and a driver unit which may be actuated by the control unit, wherein the driver unit is used for the electric supply of the drive motor to generate drive movements. The drive control may be brought into a holding state in which the driver unit operates in a holding mode, that the driver unit interacts with the drive motor in the holding mode to hold the closure element in an intermediate position and that the drive control has a supply switch which separates the driver unit in the holding state of the drive control from the supply voltage.