A clutch unit, comprising: a) a lever-side clutch portion provided on an input side, for controlling transmission and interruption of rotational torque to an output side through lever operation; and b) a brake-side clutch portion provided on the output side, for transmitting torque input from the lever-side clutch portion to the output side and for interrupting torque reversely input from the output side, wherein the lever-side clutch portion comprises: - an input-side member (13, 14) to be rotated through the lever operation; and - a centering spring as an elastic member, which is provided between a stationary-side member (23, 24, 25) restricted in rotation and the input-side member (13, 14), for accumulating an elastic force obtained by torque input from the input-side member (13, 14) and for restoring the input-side member (13, 14) to a neutral state with the accumulated elastic force through releasing of the torque input from the input-side member (13, 14); c) the stationary-side member (23, 24, 25) comprising an inclined portion which abuts on the centering spring and swells to the elastic member side; d) a swelling height of the inclined portion is changed gradually with respect to a radial change of the centering spring when the centering spring climbs onto the inclined portion at the time of lever operation of restoring the lever from a full stroke to a neutral position, e) an outermost diameter of the inclined portion has a rounded corner surface (24g 1), and f) the centering spring is a C-shaped and band plate-like spring comprising a pair of lock portions formed by bending both the ends thereof to a radially outer side, characterized in that g) said lock portions are formed in such a manner that two slits are formed in each end of the centering spring in a peripheral direction, and h) wherein one of the lock portions and the other of the lock portions are formed at center positions that are identical in a band-plate width direction. a) a lever-side clutch portion provided on an input side, for controlling transmission and interruption of rotational torque to an output side through lever operation; and b) a brake-side clutch portion provided on the output side, for transmitting torque input from the lever-side clutch portion to the output side and for interrupting torque reversely input from the output side, wherein the lever-side clutch portion comprises: - an input-side member (13, 14) to be rotated through the lever operation; and - a centering spring as an elastic member, which is provided between a stationary-side member (23, 24, 25) restricted in rotation and the input-side member (13, 14), for accumulating an elastic force obtained by torque input from the input-side member (13, 14) and for restoring the input-side member (13, 14) to a neutral state with the accumulated elastic force through releasing of the torque input from the input-side member (13, 14); - an input-side member (13, 14) to be rotated through the lever operation; and - a centering spring as an elastic member, which is provided between a stationary-side member (23, 24, 25) restricted in rotation and the input-side member (13, 14), for accumulating an elastic force obtained by torque input from the input-side member (13, 14) and for restoring the input-side member (13, 14) to a neutral state with the accumulated elastic force through releasing of the torque input from the input-side member (13, 14); c) the stationary-side member (23, 24, 25) comprising an inclined portion which abuts on the centering spring and swells to the elastic member side; d) a swelling height of the inclined portion is changed gradually with respect to a radial change of the centering spring when the centering spring climbs onto the inclined portion at the time of lever operation of restoring the lever from a full stroke to a neutral position, e) an outermost diameter of the inclined portion has a rounded corner surface (24g 1), and f) the centering spring is a C-shaped and band plate-like spring comprising a pair of lock portions formed by bending both the ends thereof to a radially outer side, g) said lock portions are formed in such a manner that two slits are formed in each end of the centering spring in a peripheral direction, and h) wherein one of the lock portions and the other of the lock portions are formed at center positions that are identical in a band-plate width direction.