초록 ▼

Rotating displays include rotation mechanisms which allow the displays to be easily rotated by consumers, yet automatically returned to one or more desired positions when released by the consumer. Holders for the display are affixed to turntables rotatably mounted upon a base wherein the turntables

Rotating displays include rotation mechanisms which allow the displays to be easily rotated by consumers, yet automatically returned to one or more desired positions when released by the consumer. Holders for the display are affixed to turntables rotatably mounted upon a base wherein the turntables are attached to a biasing means capable of exerting a sufficient torque upon said turntable, relative to said base to cause an angular acceleration of said turntable toward a predetermined desired orientation. In preferred embodiments, the amplitude of the torque may be adjusted, depending upon the moment of inertia of the display, to cause a predetermined angular acceleration. The number and placement of equilibrium orientations may be selected based upon the desired geometric configuration of the display with which the rotation mechanism is to be used.

대표청구항 ▼

A rotation mechanism comprising a turntable rotatably mounted upon a base and free to rotate about an axis of rotation to at least one predetermined equilibrium orientation relative to said base, said base having a cam with a contact surface which is non-uniform about said axis of rotation, said tur

A rotation mechanism comprising a turntable rotatably mounted upon a base and free to rotate about an axis of rotation to at least one predetermined equilibrium orientation relative to said base, said base having a cam with a contact surface which is non-uniform about said axis of rotation, said turntable having attached thereto, first and second pressure arms each pivotably mounted to said turntable, wherein first and second cam followers are rotatably mounted to said first and second pressure arms respectively, both cam followers being pressed against said contact surface by a single biasing means and with a force sufficient to cause, in the absence of external force or impediment, an angular acceleration of said turntable, relative to said base, in a direction toward one of said equilibrium orientations.