[특허]Apparatus for controlling nut runner

[미국특허] Apparatus for controlling nut runner 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B23Q-005/00
출원번호	US-0459332 (1989-12-29)
발명자 / 주소	Takeshima Akira (Sayama JPX) Asakura Toshikazu (Sayama JPX) Takahashi Akihiko (Sayama JPX) Kobayashi Shigeo (Sayama JPX) Hayashi Shoichi (Sayama JPX)
출원인 / 주소	Honda Giken Kogyo Kabushiki Kaisha (Tokyo JPX 03)
인용정보	피인용 횟수 : 49 인용 특허 : 0

초록 ▼

The output shaft of a nut runner for tightening a fastener such as a bolt is first rotated with a first torque at a first speed. When the tightening torque of the output shaft reaches a preset switching torque, the first torque first speed rotation of the output shaft is interrupted, and thereafter the output shaft is rotated with a second torque at a second speed. When the tightening torque then reaches a preset snug torque, the second torque second speed rotation of the output shaft is interrupted, and thereafter the output shaft is rotated with a third torque at a third speed. When the tightening torque reaches a preset final torque, the third torque third speed rotation of the output shaft is stopped, thus completing the tightening of the fastener.

대표청구항 ▼

An apparatus for controlling a nut runner for tightening a fastener, comprising: a motor operatively connected to an output shaft of the nut runner for rotating said output shaft; speed reducer means for reducing a rotational speed of said output shaft, said speed reducer means comprising a switching clutch shiftable selectively in higher and lower speed positions for rotating said output shaft in respective higher and lower speed ranges; torque sensor means for detecting a tightening torque of said output shaft; means for presetting torque and speed values corresponding to a switching torque, a snug torque, a final torque, a higher motor speed, a medium motor speed, and a lower motor speed; comparator means for comparing the detected tightening torque of said output shaft with each of said preset torque values corresponding to said switching, snug and final torques, said comparator means outputting a signal when said detected tightening torque reaches each of said preset torque values; switching means responsive to the signal output from said comparator means, said switching means outputting a switching signal for switching a rotational speed and torque of said output shaft; motor driver means responsive to switching signal for controlling said motor and said output shaft through said speed reducer, thereby rotating said output shaft at said higher, medium and lower motor speeds, respectively; wherein when the switching clutch is shifted into said higher speed position said output shaft is rotated with a lower torque at said higher speed; when the detected tightening torque reaches the preset switching torque the rotation of said output shaft is interrupted, the switching clutch is shifted into said lower speed position and thereafter said output shaft is rotated with a medium torque at said medium speed; when the detected tightening torque reaches said preset snug torque the rotation of said output shaft is interrupted and thereafter said output shaft is rotated with a higher torque at said lower speed; and when the detected tightening torque reaches said preset final torque the rotation of said output shaft is stopped.

이 특허를 인용한 특허 (49) 인용/피인용 타임라인 분석

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Ng, Wong Kun; Shook, Christopher W., Fastener setting algorithm for drill driver.
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Shelton, IV, Frederick E., Motor-driven surgical instrument.
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Duane R. Bookshar ; James F Steverding ; Michael Juliano, Pneumatic tool and system for applying torque to fasteners.
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Shelton, IV, Frederick E.; Harris, Jason L., Stapling end effector configured to compensate for an uneven gap between a first jaw and a second jaw.
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Schmid, Katherine J.; Morgan, Jerome R.; Korvick, Donna L.; Shelton, IV, Frederick E., Stapling system comprising an adjunct and a flowable adhesive.
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Shelton, IV, Frederick E.; Baxter, III, Chester O.; Aronhalt, Taylor W.; Young, Joseph E., Stapling system including an actuation system.
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Beckman, Andrew T.; Nalagatla, Anil K.; Hibner, John A.; Shelton, IV, Frederick E., Surgical apparatus configured to assess whether a performance parameter of the surgical apparatus is within an acceptable performance band.
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Beckman, Andrew T.; Nalagatla, Anil K.; Koch, Jr., Robert L.; Hibner, John A.; Shelton, IV, Frederick E., Surgical apparatus configured to track an end-of-life parameter.
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Shelton, IV, Frederick E., Surgical cutting and fastening instrument.
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Shelton, IV, Frederick E.; Swayze, Jeffrey S.; Baxter, III, Chester O., Surgical fastening apparatus with a rotary end effector drive shaft for selective engagement with a motorized drive system.
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Yates, David C.; Huitema, Thomas W.; Shelton, IV, Frederick E., Surgical instrument comprising a control system.
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Parihar, Shailendra K.; Kimsey, John S.; Koch, Jr., Robert L.; Nalagatla, Anil K.; Nguyen, Anthony T., Surgical instrument comprising a gap setting system.
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Overmyer, Mark D.; Auld, Michael D.; Adams, Shane R.; Shelton, IV, Frederick E.; Harris, Jason L., Surgical instrument comprising a lockable battery housing.
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Leimbach, Richard L.; Beckman, Andrew T.; Schultz, Darwin L.; Adams, Shane R., Surgical instrument comprising a rotatable shaft.
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Kerr, Wendy A.; Lytle, IV, Thomas W.; Overmyer, Mark D.; Swensgard, Brett E.; Sackett, Kevin D.; Leimbach, Richard L.; Houser, Kevin L.; Morgan, Jerome R.; Shelton, IV, Frederick E., Surgical instrument system comprising lockable systems.
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Yates, David C.; Shelton, IV, Frederick E.; Giordano, James R., Surgical instrument system for evaluating tissue impedance.
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Hunter, Morgan R.; Schultz, Darwin L.; Worthington, Sarah A.; Shelton, IV, Frederick E.; Weaner, Lauren S.; Vendely, Michael J., Surgical instrument with articulating and axially translatable end effector.
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Hunter, Morgan R.; Schultz, Darwin L.; Dunki-Jacobs, Adam R.; Baxter, III, Chester O.; Swayze, Jeffrey S., Surgical instruments with tensioning arrangements for cable driven articulation systems.
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Adams, Shane R.; Yates, David C.; Shelton, IV, Frederick E.; Harris, Jason L., Surgical shaft assemblies with watertight housings.
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Harris, Jason L.; Morgan, Jerome R.; Zeiner, Mark S.; Shelton, IV, Frederick E., Surgical staple and driver arrangements for staple cartridges.
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Murray, Michael A.; Morgan, Jerome R.; Hess, Christopher J.; Weisenburgh, II, William B.; Zwolinski, Andrew M., Surgical staple cartridge.
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Overmyer, Mark D.; Yates, David C.; Shelton, IV, Frederick E.; Adams, Shane R.; Leimbach, Richard L., Surgical stapler having motor control based on an electrical parameter related to a motor current.
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Shelton, IV, Frederick E.; Setser, Michael E.; Weisenburgh, II, William B., Surgical stapling instrument with lockout features to prevent advancement of a firing assembly unless an unfired surgical staple cartridge is operably mounted in an end effector portion of the instrument.
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[미국특허] Apparatus for controlling nut runner 원문보기