Linear actuator
A technology of linear actuators, actuators, applied in transmissions, beds, sofas, etc.
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[0032] figure 1 A linear actuator 1 is shown comprising a support frame 2 , a driven element 3 movable at the front end of the support frame 2 and a mount 4 at the rear end of the support frame 2 .
[0033] The driven element 3 is a so-called "inner tube" that is telescopic inside an outer tube 5 connected to the support frame 2 . An electric motor 6 is connected to the support frame 2 and drives a spindle arranged in the support frame 2 and the outer tube 5 . The driven element 3 is connected to a spindle nut which is threaded on the spindle. The spindle nut is secured against rotation. When the motor 6 drives the spindle, the spindle nut and thus the driven element 3 is driven out of or into the outer tube 5 . The direction of movement of the driven element 3 depends on the direction of rotation of the electric motor 6 .
[0034] The driven element 3 is connected to a front mount 7 which can be used to connect the driven element 3 to eg a part of a bed.
[0035] A mount...
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