PROBLEM TO BE SOLVED: To provide an electrocardiographic device for a vehicle, in which the feeling of incompatibility due to a capacitive coupling type electrode provided to a seat is reduced.SOLUTION: The electrocardiographic device for a vehicle includes: a direct electrode 2 which is provided to the steering wheel 1 of the vehicle and detects the body potential of a driver by being brought into contact with the skin of the driver a capacitive coupling type electrode 6 which is provided to the seat 4 of the vehicle and detects the body potential of the driver in an electrically insulated state and an electrocardiographic instrument 8 for measuring electrocardiographic signals of the driver on the basis of the potential in the direct electrode 2 and the potential in the capacitive coupling type electrode 6. A recessed part 30 for which urethane 26 and urethane 28 on the lower side of the cover 29 of the seat part 4a of the seat 4 are recessed is formed over left and right hip parts of the driver, and the capacitive coupling type electrode 6 is housed in the recessed part 30. Also, the electrocardiographic instrument 8 is arranged between the left and right hip parts of the driver inside the recessed part 30. Further, the cover 29 of the seat 4 on the upper side of the capacitive coupling type electrode 6 is formed thin.COPYRIGHT: (C)2013,JPO&INPIT【課題】シートに設けた容量結合型電極による違和感の軽減を図った車両用心電計測装置を得る。【解決手段】車両のステアリングホイール1に設けられ、運転者の皮膚に接触して運転者の身体電位を検出する直接電極2と、車両のシート4に設けられ、電気的絶縁状態で運転者の身体電位を検出する容量結合型電極6と、直接電極2における電位と容量結合型電極6における電位とに基づき運転者の心電信号を計測する心電計測器8とを備える。シート4の座部4aの表皮29の下側のウレタン26,28を窪ませた凹部30を運転者の左右臀部に跨って形成し、凹部30に容量結合型電極6を収納した。また、心電計測器8を凹部30内の運転者の左右臀部の間に配置する。更に、容量結合型電極6の上側のシート4の表皮29を薄く形成した。【選択図】図3
