Patent ID: 8695503

Claim:
A pivoting assembly comprising: an elongated member having a first end and a second end; a protrusion extending from the elongated member, the protrusion extending transversely to a length of the elongated member from the first end of the elongated member to the second end of the elongated member; a pivot pin having a first end and a second end, the first end of the pivot pin being mounted through the elongated member at a position that enables the first end and the second end to move in a curved path about the pivot pin; a channel having a first horizontal planar surface and a second horizontal planar surface, the first planar surface and the second planar surface being parallel to one another and the second end of the pivot pin being positioned between the first horizontal planar surface and the second horizontal planar surface to constrain vertical movement of the pivot pin; a first cam positioned proximate the channel to enable the first cam to rotate past a portion of the pivot pin between the first end and the second end of the pivot pin and block a portion of the channel to stop horizontal movement of the pivot pin along the channel; a second cam positioned to enable the second cam to engage the protrusion extending from the elongated member; and an actuator having an output shaft that is operatively connected to the first cam and the second cam, the actuator rotates in a first rotational direction to rotate the second cam and the first cam until the first cam blocks the channel and prevents horizontal movement of the pivot pin in the channel and the second cam engages the protrusion extending from the elongated member and pivots the second end of the elongated member about the pivot pin in a first direction along the curved path to move the first end of the elongated member in the first direction along the curved path, and the actuator rotates in a second rotational direction that is opposite the first rotational direction to enable the elongated member to pivot along the curved path in a direction opposite the first direction, disengage the second cam from the protrusion extending from the elongated member, and move the first cam to a position that does not block the pivot pin in the channel.