[특허]Driving tool with controller having microswitch for controlling operation of motor

BLACK & DECKER INC.

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특허 상세정보

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Driving tool with controller having microswitch for controlling operation of motor

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B25C-001/06 B25C-001/00
출원번호	US-0948651 (2013-07-23)
등록번호	US-9486905 (2016-11-08)
발명자 / 주소	Baskar, Ashok S. Bradenbaugh, Charles L. Schell, Craig A. Kenney, James J. Gross, Paul G.
출원인 / 주소	BLACK & DECKER INC.
대리인 / 주소	Harness, Dickey & Pierce, P.L.C.
인용정보	피인용 횟수 : 0 인용 특허 : 122

초록
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A driving tool with a housing, a motor received in the housing, a control unit and a trigger. The housing defines a handle. The control unit is configured to operate the motor and has a microswitch, an actuator arm and a spring. The actuator arm is biased by the spring toward the microswitch. The spring is configured to move the actuator arm against the microswitch to cause the microswitch to operate in an actuated switch state. The trigger is coupled to the handle and is movable between a first trigger position and a second trigger position. The trigger has a switch arm that cooperates with the actuator arm to form a lost-motion coupling that permits a predetermined amount of movement of the trigger from the first trigger position to the second trigger position before coupling the switch arm to the actuator arm. The actuator member does not contact the microswitch when the trigger is in the second trigger position so that the microswitch operates in a nominal switch state.

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1. A driving tool comprising: a housing defining a handle;a backbone structure received in the housing;a rotary motor mounted to the backbone structure;a flywheel mounted to the backbone structure and driven by the motor;a driver;an actuator coupled to the backbone structure, the actuator being selectively operable to drive the driver into engagement with a circumferential surface of the flywheel to transmit power from the flywheel to the driver to cause the driver to translate along a translation axis;a control unit coupled to the backbone structure, the control unit being configured to control operation of the motor and the actuator, the control unit having: a trigger switch operable in a first switch state and a second switch state;an actuator arm translatable relative to the backbone structure along a first axis between a first arm position and a second arm position; anda spring engaging the actuator arm and biasing the actuator arm toward the first arm position, wherein when the actuator arm is in the first arm position, the trigger switch is in the first switch state and the actuator arm contacts the trigger switch, and wherein when the actuator arm is in the second arm position, the trigger switch is in the second switch state and the actuator arm is not in contact with the trigger switch; anda trigger including a trigger member coupled to the handle and movable between a first trigger position and a second trigger position, and a switch arm that is fixedly coupled to the trigger member and contacts the actuator arm when the trigger member is in the second trigger position;wherein movement of the trigger member from the first trigger position to the second trigger position moves the actuator arm to the second arm position so that the trigger switch operates in the second switch state. 2. The driving tool of claim 1, wherein the trigger switch is a microswitch. 3. The driving tool of claim 1, wherein the switch arm does not contact the actuator arm when the trigger is in the first trigger position. 4. The driving tool of claim 1, wherein movement of the trigger member by a predetermined amount from the first trigger position toward the second trigger position moves the switch arm into abutment with the actuator arm. 5. The driving tool of claim 1, wherein the switch arm is configured to move along a path that is not parallel to the first axis. 6. The driving tool of claim 5, wherein the switch arm is configured to move increasingly away from the first axis as the trigger member moves closer to the second trigger position. 7. The driving tool of claim 1, wherein the actuator comprises a solenoid. 8. The driving tool of claim 1, wherein the control unit is configured to operate the rotary motor in response to a change in a state of the trigger switch from the first switch state to the second switch state. 9. The driving tool of claim 1, wherein the driver and the flywheel have complementary abutting surfaces that include a plurality of peaks and valleys. 10. A driving tool comprising: a housing defining a handle;a motor received in the housing;a control unit configured to operate the motor, the control unit having a microswitch, an actuator arm and a spring, the microswitch being operable in a nominal switch state and an actuated switch state, the actuator arm being translatable relative to the housing along a first axis, the actuator arm being biased by the spring toward the microswitch, the spring being configured to move the actuator arm against the microswitch to cause the microswitch to operate in the actuated switch state; anda trigger including a trigger member coupled to the handle and movable between a first trigger position and a second trigger position, and a switch arm fixedly coupled to the trigger member, wherein movement of the trigger member from the first trigger position to the second trigger position causes the switch arm to move the actuator arm away from the microswitch so that the microswitch operates in the nominal switch state. 11. The driving tool of claim 10, wherein the motor comprises a rotary motor. 12. The driving tool of claim 11, wherein the motor is a linear motor and comprises a solenoid. 13. The driving tool of claim 12, wherein the linear motor comprises a flywheel, which is driven by the rotary motor, and a driver that is configured to translate along a translation axis, wherein operation of the solenoid drives the driver into contact with a circumferential surface of the flywheel. 14. The driving tool of claim 11, wherein the control unit is configured to operate the rotary motor in response to a change in a state of the microswitch from the actuated switch state to the nominal switch state. 15. The driving tool of claim 10, wherein the switch arm is configured to move along a path that is not parallel to the first axis. 16. The driving tool of claim 15, wherein the switch arm is configured to move increasingly away from the first axis as the trigger member moves closer to the second trigger position. 17. The driving tool of claim 10, wherein the switch arm does not contact the actuator arm when the trigger is in the first trigger position. 18. The driving tool of claim 17, wherein movement of the trigger member by a predetermined amount from the first trigger position toward the second trigger position moves the switch arm into abutment with the actuator arm. 19. A driving tool comprising: a housing defining a handle;a motor received in the housing;a control unit configured to operate the motor, the control unit having a microswitch, an actuator arm and a spring, the microswitch being operable in a nominal switch state and an actuated switch state, the actuator arm being translatable relative to the housing along a first axis and being biased by the spring toward the microswitch, the spring being configured to move the actuator arm against the microswitch to cause the microswitch to operate in the actuated switch state; anda trigger including a trigger member coupled to the handle and movable between a first trigger position and a second trigger position, and a switch arm fixedly coupled to the trigger member;wherein the switch arm and the actuator arm comprise a lost-motion coupling that permits a predetermined amount of movement of the trigger member from the first trigger position to the second trigger position before coupling the switch arm to the actuator arm, and wherein the actuator member does not contact the microswitch when the trigger member is in the second trigger position so that the microswitch operates in the nominal switch state. 20. The driving tool of claim 19, wherein the motor comprises a rotary motor. 21. The driving tool of claim 20, wherein the motor is a linear motor and comprises a solenoid. 22. The driving tool of claim 21, wherein the linear motor comprises a flywheel, which is driven by the rotary motor, and a driver that is configured to translate along a translation axis, wherein operation of the solenoid drives the driver into contact with a circumferential surface of the flywheel. 23. The driving tool of claim 20, wherein the control unit is configured to operate the rotary motor in response to a change in a state of the microswitch from the actuated switch state to the nominal switch state.

이 특허에 인용된 특허 (122)

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Driving tool with controller having microswitch for controlling operation of motor

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Driving tool with controller having microswitch for controlling operation of motor

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이 특허에 인용된 특허 (122)

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