P27872.A04
`
`CLAIM AMENDMENTS
`
`This listing of claims will replace all prior versions, and listings, of claims in the
`
`application:
`
`1. (Currently Amended) A rotary impact tool comprising:
`
`a rotary driving mechanism including a motor that rotates a driving shaft;
`
`a hammer engaged with the driving shaft;
`an output Ishaft to which a driving force is applied by impact blow ofthe hammer;
`
`a main switch operated by a user that controls a fastening operation;
`
`a torque setting switch used by a user that sets a fastening torque;
`
`a torque calculator that calculates a fastening torque;
`
`a controller that controls turning on and off Of the motor based on switching on
`
`and off of the main switch, an output of the torque calculator and the fastening torque set
`
`in the torque setting switch, and having a normal fastening mode and a tight fastening
`
`mode;
`
`a rotation angle sensor that senses a rotation angle of the output shaft to which
`
`rotation force due to impact blow of the hammer is applied or a rotation angle of a shaft
`
`of the motor; and
`
`a tight fastening mode setting switch that sets the tight fastening mode in which a
`
`fastening member is fastened further[[,]] to stop, fastening of the fastening member in
`
`normal fastening torque; wherein
`
`the tight fastening mode setting switch is provided on an exterior surface of a
`
`housing thereby enabling to be touched directly by an operator in fastening operations;
`
`
`
`CLAIM AMENDMENTS
`
`This listing of claims will replace all prior versions, and listings, of claims in the
`
`application:
`
`1. (Currently Amended) A rotary impact tool comprising:
`
`a rotary driving mechanism including a motor that rotates a driving shaft;
`
`a hammer engaged with the driving shaft;
`an output Ishaft to which a driving force is applied by impact blow ofthe hammer;
`
`a main switch operated by a user that controls a fastening operation;
`
`a torque setting switch used by a user that sets a fastening torque;
`
`a torque calculator that calculates a fastening torque;
`
`a controller that controls turning on and off Of the motor based on switching on
`
`and off of the main switch, an output of the torque calculator and the fastening torque set
`
`in the torque setting switch, and having a normal fastening mode and a tight fastening
`
`mode;
`
`a rotation angle sensor that senses a rotation angle of the output shaft to which
`
`rotation force due to impact blow of the hammer is applied or a rotation angle of a shaft
`
`of the motor; and
`
`a tight fastening mode setting switch that sets the tight fastening mode in which a
`
`fastening member is fastened further[[,]] to stop, fastening of the fastening member in
`
`normal fastening torque; wherein
`
`the tight fastening mode setting switch is provided on an exterior surface of a
`
`housing thereby enabling to be touched directly by an operator in fastening operations;
`
`
`
`P27872.A04
`
`in the tight fastening mode, the impact blows of the hammer are performed in a
`
`predetermined term until a rotation angle of the output shaft reaches to a predetermined
`
`angle as a tight fastening operation;
`
`when the tight fastening mode setting switch is switched on,
`
`the controller
`
`continuously drives the rotary driving mechanism so as to perform a fig tight fastening
`
`operations eperatien continuously;
`
`the torque calculator calculates the fastening torque based on an output of the
`
`rotation angle sensor; and
`
`the controller stops driving of the motor when the rotation angle obtained from an
`
`output of the rotation angle sensor becomes equal to or larger than a predetermined
`
`reference value in the tight fastening mode.
`
`2. Canceled
`
`3. (Previously Presented) The rotary impact tool in accordance with claim 1,
`
`further comprising:
`
`a tight fastening angle setting switch that sets or varies the predetermined
`
`reference value set in the tight fastening mode.
`
`4. Canceled
`
`5. (Previously Presented) The rotary impact tool in accordance with claim 1,
`
`wherein
`
`
`
`P27872.AO4
`
`the controller increases a level of phase of the fastening torque set in the torque
`
`setting switch by one, when a number of tight
`
`fastening operations reaches a
`
`predetermined number of times.
`
`6. Canceled
`
`7. (Previously Presented) The rotary impact tool in accordance with claim 3,
`
`wherein
`
`the controller increases a level of phase of the fastening torque set in the torque
`
`setting switch by one, when a number of tight
`
`fastening operations reaches a
`
`predetermined number of times.
`
`8. Canceled
`
`9. (Currently Amended) A rotary impact tool comprising:
`
`a rotary driving mechanism including a motor that rotates a driving shaft;
`
`a hammer engaged with the driving shaft;
`
`an output shaft to which a driving force is applied by impact blow of the hammer;
`
`a main switch operated by a user that controls a fastening operation;
`
`a torque setting switch used by a user that sets a fastening torque;
`
`a torque calculator that calculates a fastening torque;
`
`a controller that controls turning on and off of the motor based on switching on
`
`and off of the main switch, an output of the torque calculator and the fastening torque set
`
`
`
`P27872.AO4
`
`in the torque setting switch, and having a normal fastening mode and a tight fastening
`
`mode; and
`
`a tight fastening mode setting switch that sets the tight fastening mode where a
`
`fastening member is fastened further[[,]] to stop fastening of the fastening member in
`
`normal fastening torque; wherein and
`
`the tight fastening mode setting switch is provided on an exterior surface of a
`
`housing thereby enabling to be touched directly by an operator in fastening operations;
`
`in the tight fastening mode, the impact blows of the hammer are performed in a
`
`predetermined term until a predetermined number of impact blows of the hammer are
`
`performed as a tight fastening operation;
`
`when the tight fastening mode setting switch is switched on,
`
`the controller
`
`continuously drives the rotary driving mechanism so as to perform a th_e tight fastening
`
`operations operation continuously; and
`
`
`when a number quantity of LIE impact blows of the hammer corresponding to the
`
`fastening torque set in the torque setting switch is performed, the controller stops driving
`
`of the motor in the tight fastening mode.
`
`10. (Previously Presented) The rotary impact tool in accordance with claim 9,
`
`wherein
`
`the controller increases a level of phase of the fastening torque set in the torque
`
`setting switch by one, when a number of tight
`
`fastening operations reaches a
`
`predetermined number of times.
`
`
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