A handheld driving apparatus for mowing or cutting an object, comprising: a container configured to extend from a rear side where a user is located toward a front side where the object is located; a lock member (4, 4a) configured to move between a first position (P1, P1a) and a second position (P2, P2a), a straight line connecting the first position (P1, P1a) and the second position (P2, P2a) extending in a direction in which the container extends or in a direction orthogonal to a direction in which the container extends; a trigger lever (5, 5a) configured to move between a third position and a fourth position, to be restricted from moving to the fourth position when the lock member (4, 4a) is at the first position (P1, P1a), and not to be restricted from moving to the fourth position when the lock member (4, 4a) is at the second position (P2, P2a); a holding member (6, 6a) configured to move between a fifth position and a sixth position, to be restricted from moving to the sixth position when the lock member (4, 4a) is at the first position (P1, P1a), not to be restricted from moving to the sixth position when the lock member (4, 4a) is at the second position (P2, P2a), and to restrict the movement of the lock member (4, 4a) when the holding member (6, 6a) is at the sixth position; and an action unit provided on the front side of the container, and configured to drive in such a manner that a mechanical action for mowing or cutting the object can be applied to the object when the trigger lever (5, 5a) is at the fourth position, characterized in that the lock member (4, 4a) comprises a first protrusion (42, 42a) configured, by contacting with the trigger lever (5, 5a) in a state in which the lock member (4, 4a) is at the first position (P1, P1a), to restrict the trigger lever (5, 5a) from moving from the third position to the fourth position. a container configured to extend from a rear side where a user is located toward a front side where the object is located; a lock member (4, 4a) configured to move between a first position (P1, P1a) and a second position (P2, P2a), a straight line connecting the first position (P1, P1a) and the second position (P2, P2a) extending in a direction in which the container extends or in a direction orthogonal to a direction in which the container extends; a trigger lever (5, 5a) configured to move between a third position and a fourth position, to be restricted from moving to the fourth position when the lock member (4, 4a) is at the first position (P1, P1a), and not to be restricted from moving to the fourth position when the lock member (4, 4a) is at the second position (P2, P2a); to move between a third position and a fourth position, to be restricted from moving to the fourth position when the lock member (4, 4a) is at the first position (P1, P1a), and not to be restricted from moving to the fourth position when the lock member (4, 4a) is at the second position (P2, P2a); a holding member (6, 6a) configured to move between a fifth position and a sixth position, to be restricted from moving to the sixth position when the lock member (4, 4a) is at the first position (P1, P1a), not to be restricted from moving to the sixth position when the lock member (4, 4a) is at the second position (P2, P2a), and to restrict the movement of the lock member (4, 4a) when the holding member (6, 6a) is at the sixth position; and to move between a fifth position and a sixth position, to be restricted from moving to the sixth position when the lock member (4, 4a) is at the first position (P1, P1a), not to be restricted from moving to the sixth position when the lock member (4, 4a) is at the second position (P2, P2a), and to restrict the movement of the lock member (4, 4a) when the holding member (6, 6a) is at the sixth position; and an action unit provided on the front side of the container, and configured to drive in such a manner that a mechanical action for mowing or cutting the object can be applied to the object when the trigger lever (5, 5a) is at the fourth position, characterized in that provided on the front side of the container, and configured to drive in such a manner that a mechanical action for mowing or cutting the object can be applied to the object when the trigger lever (5, 5a) is at the fourth position, characterized in that the lock member (4, 4a) comprises a first protrusion (42, 42a) configured, by contacting with the trigger lever (5, 5a) in a state in which the lock member (4, 4a) is at the first position (P1, P1a), to restrict the trigger lever (5, 5a) from moving from the third position to the fourth position.