Power transmission device

A power transmission device for a vehicle, comprising:

• a power transmitting mechanism having a first casing, a speed change mechanism having a speed change gear assembly supported in the first casing and provided on to at least one pair of power transmitting shafts and first oil accommodated in the first casing to lubricate the speed change mechanism;
• and
• an intermittent mechanism having a pair of rotating members, an intermittent part arranged between the rotating members to transmit and interrupt a driving force, an actuator for operating the intermittent part, a second casing accommodating the rotating members and the intermittent part and also connected to the first casing and second oil accommodated in the second casing to lubricate the intermittent part, wherein
• the second casing includes a first casing member having a cylindrical part and one end wall and a second casing member having another end wall connected to the cylindrical part integrally,
• the second casing further includes first sealing means arranged between one of the rotating members and the end wall, between the other of the rotating members and the other end wall and also between the first casing and the second casing to enclose the second oil in the second casing,
• wherein the power transmitting mechanism includes a shaft member supported by the first casing and having one end projecting from the first casing and connected to the either of the rotating members so as to allow an integral rotation therewith,
• the power transmitting mechanism further includes a second sealing means arranged between the first casing and the shaft member to enclose the first oil in the first casing,
• a segmentalized space is defined by the other end wall of the second casing member, the first sealing means, the first casing, the shaft member and the second sealing means to accommodate third oil.