Patent ID: 7093506
Filing Date: 2006-08-22
Classification: G01L

Abstract:
1. A force measurement cell, comprising: a block mechanism unit including a Roberval mechanism having a fixed part, a movable part on which a measured force acts, and parallel beams each having flexible parts on two ends for connecting the fixed part and the movable part; and a lever mechanism connected to the movable part of the Roberval mechanism to transmit a displacement of said movable part by the measured force to an outside, a gapped part provided on one of said lever mechanism and said Roberval mechanism and oriented in a vertical direction orthogonal to an axial direction of one of said lever mechanism and said Roberval mechanism, and a stopper for restricting displacement of one of said lever mechanism and said Roberval mechanism, the stopper being fixed to the fixed part of said block mechanism unit facing opposite said gapped part with a prescribed gap opened in the axial direction of one of said lever mechanism and said Roberval mechanism.