Abstract: An arm is attached to a frame in a manner movable up and down. A joint mechanism is attached to the arm. A movable member is attached to the frame in a manner movable up and down. An elastic member is disposed between the arm and the movable member. The first toggle mechanism includes a first link, a second link, and a first joint. The first link is attached to the movable member in a pivotable manner. The second link is attached to the frame in a pivotable manner. The first joint joins the first and second links therethrough to each other. An operating member switches the first toggle mechanism between the actuated state and the unactuated state. The first toggle mechanism moves the movable member upward when set in the actuated state. The first toggle mechanism moves the movable member downward when set in the unactuated state.

Abstract: A fluid coupling includes a cover, an impeller, a turbine, an output hub, a lock-up piston, and a wall member. The impeller is fixed to the cover. The turbine is disposed opposite to the impeller. The output hub outputs a torque transmitted thereto from the turbine. The lock-up piston is disposed between the cover and the turbine. The lock-up piston is disposed to be axially slidable on the output hub. The lock-up piston is configured to be engaged by friction with the cover. The wall member is attached to the output hub. The wall member defines a hydraulic chamber in cooperation with the lock-up piston.

Abstract: A damper apparatus includes a drive plate, a driven plate, torsion springs, and spring housing portions. The torsion springs each have a large arc spring and a small arc spring, and elastically couple the drive plate and the driven plate in the rotation direction and transmit torque. The spring housing portions have a support surface that can support the outer periphery of the large arc springs, and the support surface comes into contact with the outer periphery of the central portions, in the lengthwise direction, of the large arc springs. Also, gaps exist between the support surface and the outer periphery of the two end portions, in the lengthwise direction, of the large arc springs.

Abstract: A damper apparatus includes a drive plate, a driven plate, torsion springs, and spring housing portions. The torsion springs each have a large arc spring and a small arc spring, and elastically couple the drive plate and the driven plate in the rotation direction and transmit torque. The spring housing portions have a support surface that can support the outer periphery of the large arc springs, and the support surface comes into contact with the outer periphery of the central portions, in the lengthwise direction, of the large arc springs. Also, gaps exist between the support surface and the outer periphery of the two end portions, in the lengthwise direction, of the large arc springs.