公开(公告)号：EP1568915B1

公开(公告)日：2008-06-18

申请号：EP03812303.0

申请日：2003-11-25

申请人： AICHI KIKAI KOGYO KABUSHIKI KAISHA

发明人： HADA, Masatoshi Aichi Kikai Kogyo Kabushiki Kaisya ,  KATO, Noriyoshi Aichi Kikai Kogyo Kabushiki Kaisya ,  SUZUKI, Fumiyuki Aichi Kikai Kogyo Kabushiki Kaisya

IPC分类号： F16F15/315

CPC分类号： F16F15/1315 ,  F16D1/076 ,  F16D13/70 ,  F16F15/13107 ,  F16F15/13164 ,  F16F15/315 ,  Y10T74/19865 ,  Y10T74/2121

摘要： A flywheel (2) has a thin plate-like plate portion (3) with flywheel mass portions at its outer periphery sides. The central portion is joined to an end face of a crankshaft (1) through bolts (7, 7) circularly arranged with spacing. In a substantially polygonal-shaped contact region, excluding seat face regions of the bolts (7, 7), formed by connecting the centers of the bolts (7, 7), a non-contact portion (S2) where the plate portion (3) is not in contact with the end face of the crankshaft (1) is formed as a recess. The area of this non-contact portion (S2) is set to between 40% and 75% of the total area of the contact region.