Component force damping device and platform scale using same

A platform scale for weighing an object, comprising:

• a support member for supporting the object,
• a plurality of load detection units supporting the support member, and
• at least four component force damping devices disposed between the support member and the load detection units, each of the component force damping devices comprising
• an arrangement of a plurality of needle bearings disposed in parallel, and
• a pair of opposed flat plates sandwiching the arrangement of the needle bearings and capable of making a relative movement in a direction of the arrangement of the needle bearings by the pair of flat plates, surfaces of each of the pair of opposed flat plates which are in contact with the plurality of needle bearings being flat;
• wherein the at least four component force damping devices are in contact with the support member at four locations forming a rectangle,
• wherein directions of the relative movement of any pair of component force damping devices at the same side of the rectangle differ to each other,
• wherein directions of the relative movement of any pair of component force damping devices at the diagonal locations of the rectangle are identical to each other.