Method of manufacturing a load cell assembly and methods of folding a circuit device

摘要

A method of manufacturing a load cell assembly and methods of folding a circuit device are disclosed. A flexible circuit body including a strip having at least one hinge is provided, with the strip being in a first position or an unfolded position. A plurality of strain gauges are attached to the strip, with the hinge disposed between the strain gauges. A jig is provided and the strip of the flexible circuit body is folded along the hinge utilizing the jig to define a second position or folded position of the strip.

主权项

1. A method of manufacturing a load cell assembly, the method comprising:
providing a flexible circuit body including a strip having a plurality of hinges, with the strip being in a first position; attaching a plurality of strain gauges to the strip to define a circuit device, with one of the hinges disposed between each of the strain gauges; providing a first jig including a mid-portion and a finger extending from the mid-portion to define a first pattern; abutting the circuit device to the mid-portion of the first pattern, with the strip remaining in the first position; folding the strip of the flexible circuit body about the finger along at least one of the hinges to define a second position of the strip; removing the circuit device from the first jig, with the strip remaining in the second position; providing a second jig including a bottom part defining a second pattern; providing a support including a first portion, a second portion and a bridge disposed between the first and second portions; guiding the strip in the second position about the bridge of the support; sandwiching the circuit device between the support and the second pattern of the bottom part such that the flexible circuit body abuts at least one of the first and second portions of the support, with the strip remaining in the second position about the bridge; and folding the strip about the bridge along another one of the hinges to define a third position of the strip such that the strip is wrapped about the bridge when in the third position to align the strain gauges about the bridge and to attach the circuit device and the support to each other to define the load cell assembly.