Multi-position actuator

Abstract

Abstract This disclosure pertains to a novel mechanical means adapted for use with mechanical devices having more than one controlled position of operation, including a neutral position. A plurality of linear actuators are mounted in an assembly frame whereby their actuating forces are transmitted through torque arms to an actuator shaft, thus causing an actuator arm to assume responsive positions in a position arc. The actuator shaft torque created by a positioning linear actuator is opposed by a lesser torque created by a neutralizing linear actuator, leaving a torque differential sufficient to operate the mechanical device ultimately actuated. Where the neutral position is at either end of the position arc, one neutralizing linear actuator is required to hold the actuator arm against a stop in the position arc. Where the neutral position is required at some location inside the position arc, two neutralizing linear actuators are required. Each position other than neutral requires a positioning linear actuator. It is obvious from the foregoing description that many combinations of number and location of actuated positions are possible. The preferred embodiment of the invention disclosed herein illustrates one such combination having a central neutral and three controlled positions in each direction along the position arc.

Inventors

• 👤 J Kobelt

Bibliographic Details