Patent ID: 6033020
Filing Date: 2000-03-07
Classification: A47C

Abstract:
A rocking apparatus for supporting a first supported member on a second supporting member in such a manner that the first member can tilt around a rotary shaft with respect to the second member, the rotary shaft being engaged between the first and second members, and a reaction force imparting mechanism engaged between the first and second members for biasing the first member toward an initial base position with respect to the second member, the rocking apparatus comprising: connecting members for connecting the rotary shaft and the first member at two distant points on the rotary shaft and for rotatably supporting the first member on the second member; a reaction force member supported by and rotatable on the rotary shaft, the reaction force imparting mechanism being encased with the reaction force member to bias the reaction force member toward the first member; and a strut between the reaction force member and the first member at a position corresponding to one apex of a triangle, the strut being connected to at least either the reaction force member or the first member in order to support the first member on the reaction force member, a remaining two apices of the triangle being defined by the connecting members at the two distant points on the rotary shaft, thereby supporting the first member on the reaction force member and the rotary shaft by a three-point support using the connecting members and the strut.