Abstract: A weighing scale having a load receiving structure, such as a weighing platform, a force-transmitting system, such as a lever system, supporting the load receiving structure, and a load cell and selectively adjustable preload spring assembly connected to the force-transmitting system and supported by a rigid support structure independently of the force-transmitting system, wherein the load cell is rigidly mounted on the rigid support structure, and the preload spring is connected between the load cell and the force-transmitting system.
Abstract: A weighing scale in which a plurality of load cells support a load-receiving structure and in which a statically determinate restraint system is employed to restrain horizontal movement of the assembly of the load cells and the load-receiving structure.
Abstract: A platform weighing scale having a load receiving platform structure positioned over and resting on a multiplicity of load cells and having a load cell-removing aperture in registry with each load cell whereby each load cell is upwardly removable through its associated load cell removal aperture.
Abstract: A platform weighing scale in which a reinforced load cell-supported platform structure has a framelike reinforcement cooperating with a load-receiving deck or platform to define a torsion box frame which resists load-induced deflection of the platform between spaced apart load cell support points.FIELD OF INVENTIONThis invention relates to platform weighing scales and is particularly concerned with platform structures which are especially suitably for low profile type platform scales.BACKGROUNDLow profile platform scales for weighing relatively heavy loads are characterized by having a relatively small overall height as measured from the floor or other scale-support surface to the top of the load-receiving platform or deck. Scales of this type are especially suitable for weighing loads which are carted by such vehicles as tote bins, push carts, dollies, fork lift trucks and other usually relatively small motor vehicles.