Provided is a joint mechanism including two spur gears and; a support member that supports the two spur gears and so as to be rotatable about two joint shafts and that are disposed in a skew-lines positional relationship with a space between each other; and a rotational-force transmitting mechanism that transmits a rotational force between the spur gears and, wherein the rotational-force transmitting mechanism is provided with a transmission member formed of a rigid piece that is supported so as to be movable only in a direction parallel to a line of intersection between planes and that are respectively orthogonal to the two joint shafts and cam mechanisms or linkage mechanisms that are disposed between the transmission member and the two spur gears and, respectively, and that convert rotational motions of the spur gears and to a linear motion of the transmission member.

In order to create a mechatronic drive module as a replacement for a hydraulically operated piston, it is proposed that a piston and an axial unit be provided, wherein the piston is mounted non-rotatably, but longitudinally displaceably, with respect to the axial unit, whereas the axial unit is arranged rotatably in a housing, but immovably in the longitudinal direction. The two elements mesh via a gate, in which guide pins are guided and which has a control cam, which are inclined in the direction of a longitudinal axis. A rotation of the axial unit, which can be generated by means of an electric motor, is converted to a piston stroke based on the form of the control cam in the gate and the rotationally fixed mounting of the piston.

Provided is an electronic device including a first housing, a second housing, and a lifting structure that includes a fixing body, a gear assembly including at least one connecting gear and a driven gear operably connected to the at least one connecting gear, in which the at least one connecting gear is connected to the fixing body, a first moving body including a guide gear and a guide rail, and a second moving body including an engaging portion.

The present disclosure provides a single-power, roof-lifting mechanism for recreational vehicles. It includes a first, second, third, and fourth swing member; a first and second connector; a first and second support member; guide members; and a driving element. The first and third swing members are fixedly connected to the first connector, while the second and fourth swing members are fixedly connected to the second connector. The upper ends of the support members are rotatably connected to the roof, their middles to the third and fourth swing members, and their lower ends to the guide members, allowing relative movement. The driving element powers the swing members simultaneously, driving the support members to lift or lower the roof. This system is powered by a single electric motor, ensuring a simplified, cost-effective, and reliable design. As a result, the disclosed mechanism offers significant market potential for recreational vehicle applications.

In order to create a mechatronic drive module as a replacement for a hydraulically operated piston, it is proposed that a piston and an axial unit be provided, wherein the piston is mounted non-rotatably, but longitudinally displaceably, with respect to the axial unit, whereas the axial unit is arranged rotatably in a housing, but immovably in the longitudinal direction. The two elements mesh via a gate, in which guide pins are guided and which has a control cam, which are inclined in the direction of a longitudinal axis. A rotation of the axial unit, which can be generated by means of an electric motor, is converted to a piston stroke based on the form of the control cam in the gate and the rotationally fixed mounting of the piston.