Load sensors 11 {HEAD ~ each} constituted of a plate member 14 and distortion gauges 15˜18 detect the extent of {TAIL ~ flexure} of at least two of the supporting portions 
Load sensors 11 { HEAD ~ each } constituted of a plate member 14 and distortion gauges 15˜18 detect the extent of { TAIL ~ flexure } of at least two of the supporting portions
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH