Torque limiter and power transmission device

A torque limiter fixed to a flywheel including an annular portion and an accommodation portion provided on an inner peripheral side of the annular portion, the torque limiter disposed in an interior of the accommodation portion except for a part thereof fixed to the flywheel, the torque limiter comprising:

• a first plate to which a torque is inputted from the flywheel;
• a second plate axially opposed to the first plate;
• a friction disc disposed between the first plate and the second plate;
• a pressing member configured to press the second plate onto the friction disc;
• and
• a third plate configured to support the pressing member together with the second plate therebetween while the pressing member is set in a compressed state, wherein
• the third plate includes
• a support portion configured to support the pressing member, and
• a tubular portion provided in an outer peripheral part of the support portion, the tubular portion covering an outer peripheral surface of the friction disc, the tubular portion axially extending and opposed to an inner peripheral surface of the annular portion of the flywheel, the tubular portion including a plurality of first openings circumferentially aligned.