Driver

A driver comprising:

• an injection unit to which a fastener is fed;
• and
• a striking unit operable to stop and move between a first position and a second position and operable to strike the fastener of the injection unit when moving from the first position to the second position,
• wherein the driver further includes:
• an operational member operated by an operator;
• a moving mechanism having a first motor and configured to stop and move the striking unit when the operational member is operated;
• a feeder operable to move in a first direction toward the injection unit to feed the fastener to the injection unit and move in a second direction away from the injection unit;
• an urging member configured to urge the feeder in the first direction;
• a power mechanism, operated by the first motor, configured to move the feeder in the second direction against the urging member urging the feeder in the first direction, hold the feeder at a third position after moving the feeder in the second direction, and release the feeder held at the third position,
• wherein (1) the feeder moves in the first direction by the urging member to feed the fastener to the injection unit during a period from start of the movement of the striking unit by the operation of the operational member to a moment before the striking unit strikes the fastener, (2) after the feeder feeds the fastener to the injection unit, the power mechanism moves the feeder in the second direction and hold the feeder at the third position during a period of stoppage of the striking unit, and (3) the injection unit has no fastener after the striking unit strikes the fastener and before the feeder is released by the power mechanism.

A driver comprising:

• an injection unit to which a fastener is fed;
• and
• a striking unit operable to reciprocate between a first position and a second position and operable to strike the fastener of the injection unit when moving from the first position to the second position,
• wherein the driver further includes:
• an operational member operated by an operator;
• a moving mechanism configured to move the striking unit when the operational member is operated;
• a feeder operable to move in a first direction toward the injection unit to feed the fastener to the injection unit and move in a second direction away from the injection unit;
• an urging member configured to urge the feeder in the first direction;
• a power mechanism configured to move the feeder in the second direction against the urging member urging the feeder in the first direction, hold the feeder at a third position after moving the feeder in the second direction, and release the feeder held at the third position,
• wherein (1) the moving mechanism is configured to stop the striking unit at the first position, (2) the power mechanism feeds the fastener to the injection unit when the striking unit stops at the first position, (3) after feeding the fastener to the injection unit, the power mechanism moves the feeder in the second direction and hold the feeder at the third position, and (4) the injection unit has no fastener after the striking unit strikes the fastener and before the feeder is released by the power mechanism.

A driver comprising:

• an injection unit to which a fastener is fed;
• a striking unit operable to strike the fastener of the injection unit when moving from a first position to a second position;
• an operational member operated by an operator;
• a feeder operable to move in a first direction toward the injection unit to feed the fastener to the injection unit and move in a second direction away from the injection unit when the operational member is operated;
• an urging member configured to urge the feeder in the first direction;
• and
• a power mechanism configured to move the feeder in the second direction against the urging member urging the feeder in the first direction, hold the feeder at a third position after moving the feeder in the second direction, and release the feeder held at the third position,
• wherein (1) the power mechanism releases the feeder held at the third position, and the feeder moves in the first direction by the urging member to feed the fastener to the injection unit, (2) after the feeder feeds the fastener to the injection unit, the power mechanism moves the feeder in the second direction and hold the feeder at the third position.