Patent ID: 8850900
Filing Date: 2014-10-07
Classification: B60T,G01L,G05G

Abstract:
1. An operation amount detection apparatus that detects an operation amount transmitted from a shaft portion rotatably supported and extending in a radial direction of the rotation to an operation target member to which rotational motion of the shaft portion is input after being converted to a linear motion, between an operation member having the shaft portion and the operation target member, comprising: a transmission member that includes a first support portion that is supported by the operation target member, a second support portion that is arranged at a different location of the shaft portion from the first support portion and is supported by the shaft portion, and a connecting portion that connects the first support portion and the second support portion and deflects due to transmission of a load so that the first support portion and the second support portion are relatively displaced in a direction of the linear motion, wherein the transmission member transmits a load corresponding to the operation amount between the shaft portion and the operation target member through the connecting portion; and a detection device that detects the operation amount based on an amount of deformation of the connecting portion caused by transmission of the load; wherein: the second support portion is arranged at a different location in a lengthwise direction of the shaft portion from the first support portion; wherein the connecting portion includes a plurality of connecting portions, wherein the plurality of connecting portions connect the first support portion and the second support portion, and deflect due to transmission of the load so that the first support portion and the second support portion are relatively displaced in the direction of the linear motion, and the transmission member transmits the load corresponding to the operation amount between the shaft portion and the operation target member through the connection portions; wherein the detection device detects the operation amount based on the plurality of connecting portions; and wherein the plurality of connecting portions are arranged in parallel between the first support portion and the second support portion and are mutually opposed in a direction that is perpendicular to the lengthwise direction of the shaft portion.