Linak A/s

Rolf Jørgensen

Linear actuator comprising a housing () consisting of two parts (), an electric motor () with a motor shaft, a transmission (-) in connection with the motor shaft, a spindle unit in connection with the transmission, where the spindle unit comprises at least a spindle () with a spindle nut () and where the spindle () is equipped with a bearing (), an adjustment element () in connection with the spindle unit. The linear actuator is characterized in that a mounting unit () is embedded in the housing, said mounting unit () has a front and a rear end, and where the motor () is placed on the rear end of the mounting unit () and the spindle () is mounted on the front end of the mounting unit (), and where the transmission (-) is located inside the mounting unit (). In addition to being able to reduce the number of components with this construction, e.g. the activation element (), the front mounting () and the spindle nut () can be moulded as one single plastic unit, it also allows for a slackening of the tolerances as the assembly of the components is considerably simplified, namely only with regard to the mounting unit (). In that connection, the transmission (-) is expediently placed in the mounting unit ().

Linear actuator

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. By the sloping course of the track the cover will retract itself to its position when it with the hinge pins is slid into the tracks.

Linear actuator system

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. The fastening means can also be used to fasten a box to the outer tube on a linear actuator by fastening or, more expediently, by the fastening means being designed as an integral part of a tubular mounting bracket which is slid over an outer tube on the linear actuator.

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. The interacting fastening means are designed such that when the control box is fastened onto the mounting bracket, the slit contracts so that the tubular portion of the mounting bracket tightens around the outer tube on the linear actuator. The construction is characterized in that the control box is only fastened to the mounting bracket on the outer tube of the linear actuator. This simplifies the fastening quite considerably while simultaneously simplifying the design.

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Middelfart, Denmark

Rolf Jørgensen