Patent ID: 11858101
Assignee: KOKI HOLDINGS CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 16:
17. A driver comprising:
a striking mechanism operable to move in a first direction and a second direction opposite to the first direction;
a first moving mechanism configured to move the striking mechanism in the first direction to strike a fastener;
a motor; and
a second moving mechanism configured to move the striking mechanism in the second direction against a force of the first moving mechanism,
wherein the striking mechanism includes:
a main body portion extending in the first direction; and
first engaging portions disposed on the main body portion, and spaced apart from each other in the first direction,

the second moving mechanism includes:
a rotational element rotated by the motor, the rotational element including a drive shaft extending in a third direction crossing the first and second directions; and
second engaging portions spaced apart from each other in a rotation direction of the rotational element, the second engaging portions being engaged with and released from the first engaging portions, respectively, and

wherein the first engaging portions protruding from the main body portion in a third direction intersecting with the first and second directions, and
wherein the second engaging portions include a first-second engaging portion having a first distance between a center of the drive shaft and a part of an outermost periphery of the first-second engaging portion, and a second-second engaging portion having a second distance between a center of the drive shaft and a part of an outermost periphery of the first-second engaging portion, the first distance is greater than the second distance, and
wherein the first-second engaging portion and the second-second engaging portion are arranged in that order in the rotating direction.