Patent ID: 7232964

Claim:
A load transfer mechanism comprising: a load cell, a load transfer member, and a cover member, wherein the load cell has a load point side end and a support point side end and has a deflection detecting section between the load point side end and the support point side end, the load transfer member has a load cell mounting section to be fixed to the top surface of the load point side end of the load cell, the cover member is supported by the load transfer member and an object to be weighed is placed thereon, load applied to the cover member is transferred to the load cell through the load transfer member, and the load transfer member has an external frame and a horseshoe-shaped rib surrounding the load cell mounting section; a plurality of connecting ribs radially extending from the rib, connecting the rib and the external frame to each other; a reinforcing rib connecting the plurality of connecting ribs to each other; and a concave surface area, a part of which includes an area above the load cell mounting section and portions of the plurality of connecting ribs, the part having dimensions m×n and having a concave shape so that at least the area above the load cell mounting section in the top surface of the load transfer member does not contact the cover member; wherein m and n are sized responsive to a degree of deflection of the cover member by a load, such that when the degree of deflection of the cover member is high, the sizes of m and n are small, to narrow the concave surface area, and when the degree of deflection is low, the sizes of m and n are large, to widen the concave surface area.