| 摘要 |
An improved scale includes a movable platform which is supported by a plurality of force transmitting assemblies. Upon sideways movement of the platform, the force transmitting assemblies and platform interact to align the force transmitting assemblies and to center the platform. In one embodiment of the invention, each force transmitting assembly includes a slider which is movable along a base surface. A rocker pin transmits force between the slider and a load cell beam which is connected with the platform. When the platform is moved sideways relative to the base, the rocker pin is tilted to a maximum offset condition in which horizontally offset vertical force components are applied to the rocker pin. Continued sideways movement of the platform relative to the base results in movement of the slider relative to the base. When movement of the platform is interrupted by engagement with a bumper, the horizontally offset vertical force components applied to the rocker pin cause it to tilt to an aligned condition in which only vertically aligned force components are applied to the rocker pin. In another embodiment of the invention, the slider and a spherical force transmitting member are connected with the base and the platform moves sideways relative to the slider when the force transmitting assembly is in a maximum offset condition.
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