Abstract: The invention relates to a supporting frame with a lifting column (59) comprising telescopically arranged profiles with an upper and lower end, said upper end having a housing (60) secured thereto, and a base unit (61,62,63) with a compartment at least for partial reception of the lifting column housing (60) and a locking element (75), which when placed in a locked position exerts a squeezing force between the base unit (61,62) and the housing (60) of the lifting column (59). Thus, the housing (60) of the lifting column (59) is positioned and fixed in the base unit (61,62,63). The supporting frame further comprises means for retaining the locking element (78) in the locked position.

Abstract: Various aspects of the present disclosure are directed toward apparatuses, systems, and methods for controlling movement of a desk or table. The apparatuses, systems, and methods may include a housing arranged with the desk or table and a lever configured to initiate raising or lowering of the desk in response to a force applied by a user.

Abstract: The present invention relates to a linear actuator (1) comprising an outer tube (3) secured to a console and a rear mounting (5) and a front mounting (7) for mounting the linear actuator (1). The linear actuator (1) further comprises a motor housing (6) which constitutes a first part of an actuator housing (2) The linear actuator (1) further comprises an inner tube (4) which at its outermost end is secured to the front mounting (7) and with its other end is in connection with a spindle nut on a spindle. Through a transmission an electric motor causes the spindle to rotate at which the spindle nut and the inner tube will be moved in an outwards or inwards direction depending on the direction of rotation of the spindle. The spindle nut and the inner tube are guided telescopically in the outer tube. The spindle nut and the inner tube are secured against rotation in the outer tube.

Abstract: A linear actuator includes an electric motor, which through a transmission drives a spindle unit having a spindle with a spindle nut. A tubular adjustment element is displaced either outwards or inwards depending on the direction of rotation of the spindle unit. A brake in the shape of a coil spring and a cylindrical element are arranged for retaining the tubular adjustment element in a given position when the power for the electric motor is cut off. The cylindrical element is configured as a separate cylindrical element arranged on the spindle or a shaft in the transmission. The separate cylindrical element is preferably arranged on a rear end of the spindle between the rear mounting and the bearing for the spindle. In contrast to known constructions, the heat generation is limited, as the heat is led out to the rear mounting.

Abstract: Linear dual actuator for lying or sitting furniture having at least two sections (2,3), which with one end is rotatably embedded in the article of furniture and where each section (2,3) with an arm (5,7) secured to a pivot shaft (4,6) can be adjusted by means of the linear dual actuator. The dual actuator comprises a housing (8) with a drive at each end, which comprises an electric motor (11), which through a transmission (12) is in driving connection with a spindle (13). On the spindle (13) is arranged an activation element (14) with a spindle nut in engagement with the spindle (13), where the activation element (14) can be brought into engagement with the arm (5,7) for adjusting the sections (2,3). In case of power failure there is the problem that the back rest and leg rest section cannot be lowered to a plane level, which can make the bed uncomfortable or completely impossible to sleep in.

Abstract: A linear actuator includes a housing with an electric motor, which through a transmission drives a spindle with a spindle nut. To the spindle nut is secured a tubular adjustment element, which is guided in a guide tube. A bushing is secured at the rear end of the guide tube for securing the guide tube to the chassis of the actuator. Expediently, the securing is done with stampings from the outer side of the mounting bushing and into the guide tube. These stampings are appropriately done opposite channels, such as screw channels in the guide tube, such that the stampings are received in the channels and do not protrude into the guide tube and prevent the movement of the spindle nut and the adjustment element.

Abstract: A linear actuator system comprising a linear actuator and at least one box with an openable cover. The box comprises a horizontal hinge pin in each side as well as a track in each side, which the respective hinge pins reach into, and where the track on a first run is horizontal and led out to a free edge such that the cover can be placed on the box in a horizontal movement and that the track has a second run in continuation of the first run, and where the second run has a sloping course, which extends down towards the bottom of the box such that the respective hinge pins when the cover is closed are led into the second sloping course of the track. The cover can thus be removed from the box, in case this would be desired, alternatively the cover can remain on the box and be opened by rotating around the horizontal hinge pins. Due to the design of the tracks, which the hinge pins reach into, the cover can be placed on and removed from the box in a horizontal position.

Abstract: Linear actuator system comprising a linear actuator and at least one box, such as a control box containing a control and possibly also a mains-based power supply or a battery box with a rechargeable battery pack. The linear actuator system further comprises a fastening means for the box, wherein the fastening means is constituted by an elongated item with a rectangular outline and a square cross-section. The box has a groove for receiving the fastening means. The fastening means and the groove are constituted with mutually interacting releasable locking connections. The fastening means can be designed as an independent item that can be fastened where the box is to be placed. The fastening means can also be used to interconnect two or more boxes by fastening the fastening means to a box. Alternatively, the fastening means can be formed as an integral part of the box.

Abstract: A linear actuator system comprising a linear actuator having a housing and an outer tube, which with a rear end is secured to a side of the housing at a front end thereof. The outer tube surrounds an electric motor driven spindle unit and an activation element. The linear actuator system further comprises a control box having a control, where the control box is arranged in the angle between the housing and the outer tube on the linear actuator. The control box is fastened with a mounting bracket to the outer tube on the linear actuator. The mounting bracket comprises a tubular portion, whereby it can be pushed in over the outer tube and the mounting bracket and the control box are also designed with interacting fastening means for fastening the control box to the mounting bracket. The tubular portion of the mounting bracket has an axially extending slit and the interacting fastening means between the mounting bracket and the control box are constituted on both sides of the slit.

Abstract: A flyback converter (21) for use in a power supply for an electric actuator system comprises a snubber circuit with a snubber capacitor (23) for accumulating energy stored in a leakage inductance of a flyback transformer (4) when a primary current (Iprim) is switched off. The snubber circuit further comprises a controllable switching element (24) in series with the snubber capacitor (23) with a control terminal connected to a voltage reference. The controllable switching element (24) can be in a conducting mode when the snubber capacitor voltage exceeds the reference voltage. In this way, the leakage inductance energy can be transferred to the secondary side instead of being dissipated in a resistor in the snubber circuit. This increases the power efficiency of the converter and reduces electromagnetic interference. At the same time, the solution is very simple and can thus be implemented at a low cost.

Abstract: Linear actuator, where a reversible electric motor (20) through a transmission (21) drives a non-self-locking spindle (22), by means of which an adjustment element (24) secured against rotation can be moved axially for adjusting an element connected thereto such as a backrest section in a bed. The actuator further comprises a quick release (27) for disengagement of the adjustment element (24) from the electric motor (20) and the part of the transmission (21) extending from the electric motor (20) to the quick release (27), such that the spindle (22) is rotated under the load on the adjustment element (24). Further, the actuator comprises brake means for controlling the speed of the adjustment element (24), when the quick release (27) is activated.