Patent ID: 8887583

Claim:
A manipulated position detection device comprising: a manipulated body including a manipulated surface portion being in a plate shape; a case accommodating the manipulated body; four distortion members, each distortion member being in a plate shape, each distortion member having a joint portion connected with a periphery of the manipulated surface portion at one end, each distortion member further having a fixed portion fixed to the case at an other end, each distortion member having a movement transmission surface between the joint portion and the fixed portion, the movement transmission surface being movable according to a manipulating force caused by pressure applied to the manipulated surface portion; four distortion detection elements, each distortion detection element adhered only to the movement transmission surface of a corresponding distortion member and configured to detect a distortion of the movement transmission surface caused by a movement of the corresponding distortion member; and an arithmetic unit configured to calculate a manipulating force working on the manipulated surface portion and a manipulated position on which a manipulating force works, according to a detection result of each distortion detection element, wherein the manipulated surface portion and all the movement transmission surface are located on a same plane, the manipulated body includes a main manipulated body and only one pair of manipulated surface joint portions, the main manipulated body has the manipulated surface portion, the pair of manipulated surface joint portion are projected radially outward from the manipulated surface portion in a same surface as the manipulated body, the pair of the manipulated surface joint portions are opposed to each other to interpose the manipulated surface portion therebetween, the joint portions are two of the four distortion members are joined together to a tip end of one of the pair of manipulated surface joint portions and located opposite to each other with respect to the one of the pair of manipulated surface joint portions, and the joint portions of the other two of the four distortion members are joined together to a tip end of the other of the pair of manipulated surface joint portions and located opposite to each other with respect to the other of the pair of manipulated surface joint portions.