Feedback system for a linear actuator
OwnerKenneth W. Davisinventor
Life of this patent
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Abstract
A feedback system is disclosed for use in a remote control linear actuator device including a pair of actuator members that are relatively linearly displaceable by a motor, which feedback system includes a mounting bracket connected with one of the actuator members, a slide bar connected with the mounting bracket for linear movement by the other actuator member in a direction parallel with the direction of relative movement of said actuator members, and a rotary member operable by the slide bar to supply a feedback signal to the motor that is a function of the relative positions of the actuator members.
Claims11
Feedback means for use in connection with linear actuator means including a pair of relatively linearly displaceable actuator members, and motor means for displacing one of said actuator members relative to the other, comprising
- (a) sensing means for sensing the position of said one actuator member relative to the other member, said sensing means including
- (1) mounting bracket means adapted for mounting on said other actuator member;
- (2) a slide bar connected for longitudinal displacement relative to said mounting bracket means in a direction parallel with the direction of displacement of said one actuator member relative to said other member, said slide bar including a portion arranged for operation by said one actuator member during the linear displacement thereof relative to said other member;
- and
- (3) a rotary member connected with said mounting bracket means for rotation by said slide bar during the linear displacement thereof relative to said mounting bracket means, the axis of rotation of said rotary member being contained in a plane normal to the axis of linear displacement of said one actuator member;
- and
- (b) feedback means operable by said sensing means for controlling the operation of said motor means as a function of the position of said one member relative to the other member.
Dependencies are inferred from the claim text.