Patent attributes
An adjustable display board system comprises a display board, first and second grippers, first and second racks, and a handle. The first and second grippers are coupled to the display and include a plurality of teeth. The first and second racks are mounted to a rigid structure and include a plurality of teeth generally greater than the number of teeth of the first and second grippers. The teeth of the first and second grippers mesh with the teeth of the first and second racks to maintain the vertical position of the display board. The handle is pushed to disengage the grippers from the racks and allow vertical motion of the display board. The adjustable display board system also comprises a display board, a linear actuator unit, and one or more pivot arms. The linear actuator unit includes a movable actuator rod and is coupled to the one or more pivot arms, which in turn is coupled to the display board. Motion of the actuator rod is converted to raising and lowering of the display board.
