Selectable one-way clutch

A selectable one-way clutch comprising:

• a first inner ring formed in an annular shape;
• a first outer ring formed in an annular shape and having the first inner ring arranged inside the first outer ring;
• a shift drum formed in an annular shape and having the first inner ring and the first outer ring arranged inside the shift drum;
• and
• a first selectable plate that separates the first inner ring and the first outer ring from each other, wherein
• a direction parallel to a rotation axis of the first inner ring is an axial direction,
• one side of the axial direction is a first direction,
• another side of the axial direction is a second direction,
• a plurality of first tooth portions are formed on one of an outer peripheral surface of the first inner ring and an inner peripheral surface of the first outer ring,
• a first claw member that is tiltable and a first biasing member that biases the first claw member toward the first tooth portions are provided on the other of the outer peripheral surface of the first inner ring and the inner peripheral surface of the first outer ring,
• the first selectable plate includes
• an annular plate body arranged in the first direction with respect to the first outer ring, and
• a first cam portion that extends in the second direction from an end portion on a radially inner side of the plate body and lifts the first claw member against biasing force of the first biasing member,
• an end portion on a radially outer side of the plate body is a first power transmission portion that protrudes radially outward compared to an outer peripheral surface of the first outer ring,
• a coupling portion coupled to a linear motion mechanism is formed on an outer peripheral surface of the shift drum,
• a side surface of the shift drum facing the first direction is a first pressing surface facing the first power transmission portion in the axial direction, and
• when the shift drum is moved in the first direction, the first power transmission portion is pressed in the first direction and lifting of the first claw member by the first cam portion is released.