Load cell scale
AssigneeOrbitran Company, Inc.
InventorRobert John Price
Life of this patent
Estimating the term…
Abstract
Platform loads are applied to a single load cell through a load transfer frame. The load transfer frame is suspended for movement with the platform. An interconnection member under the influence of an overload spring normally holds the load transfer frame and the platform in a load transfer relationship. Loads in excess of a predetermined value cause the interconnection member to move out of load transfer relationship with the load transfer frame so that the platform can move against stops without damaging the load cell. The flexure plates with integral flexure rods are utilized to suspend both the load transfer frame and interconnection member.
Claims15
A load cell scale incorporating a platform mounted for vertical movement limited by an overload limit stop, the platform adapted for the reception of an object to be weighed, and a load cell for converting force into a change in an electrical characteristic comprising:
- a fixed frame,
- an interconnection member connected for movement with a load on the platform,
- a load transfer frame connected to a load cell and mounted on said fixed frame for limited translation relative to said fixed frame,
- spring means connected between said interconnection member and said load transfer frame for maintaining said interconnection member and said load transfer frame in a load transfer relationship until a predetermined load is exceeded, and for load in excess of said predetermined load said interconnection member decoupling from said load transfer frame and deforming said spring means until said platform contacts overload limit stops.
Dependencies are inferred from the claim text.