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公开(公告)号：US11926028B2
公开(公告)日：2024-03-12
申请号：US17382972
申请日：2021-07-22
发明人： Andrew R. Wyler , Nathan T. Armstrong , Jason D. Thurner , Troy C. Thorson , John S. Scott , Jeremy R. Ebner , Daniel R. Garces , Ryan Allen Dedrickson , Luke J. Skinner , Benjamin R. Suhr
摘要： A gas spring-powered fastener driver includes a cylinder, a moveable piston positioned within the cylinder, a driver blade attached to the piston and movable therewith between a ready position and a driven position, a lifter to move the driver blade from the driven position to the ready position, and a transmission including an output shaft operatively coupled to the lifter to provide torque to the lifter. The fastener driver also includes an input to provide torque to the transmission and a clutch positioned downstream of the input and operably coupled to the output shaft to limit an amount of torque transferred to the output shaft and the lifter. In response to an application of a reaction torque to the output shaft above a predetermined threshold, torque from the input is diverted from the output shaft via the clutch.
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公开(公告)号：US20190126456A1
公开(公告)日：2019-05-02
申请号：US16170836
申请日：2018-10-25
发明人： Jonathan E. Abbott , Timothy R. Obermann , John S. Dey, IV , Benjamin R. Suhr , Richard A. Ryer , Maxwell L. Merget , Douglas R. Fieldbinder
摘要： Kickback control methods for power tools. One power tool includes a movement sensor configured to measure an angular velocity of the housing of the power tool about the rotational axis. The power tool includes an electronic processor coupled to the switching network and the movement sensor and configured to implement kickback control of the power tool. To implement the kickback control, the electronic processor is configured to control the switching network to drive the brushless DC motor, receive measurements of the angular velocity of the housing of the power tool from the movement sensor, determine that a plurality of the measurements of the angular velocity of the housing of the power tool exceed a rotation speed threshold, and control the switching network to cease driving of the brushless DC motor in response to determining that the plurality of the measurements of the angular velocity exceed the rotation speed threshold.
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公开(公告)号：US12103152B2
公开(公告)日：2024-10-01
申请号：US18132808
申请日：2023-04-10
发明人： Andrew R. Wyler , Nathan T. Armstrong , Jason D. Thurner , Troy C. Thorson , John S. Scott , Jeremy R. Ebner , Daniel R. Garces , Ryan A. Dedrickson , Luke J. Skinner , Benjamin R. Suhr
摘要： A gas spring-powered fastener driver includes a cylinder, a moveable piston positioned within the cylinder, a driver blade attached to the piston and movable between a ready position and a driven position, a lifter engageable with the driver blade to return the driver blade from the driven position to the ready position, and a multi-stage planetary transmission including an output shaft operatively coupled to the lifter to provide torque thereto, a first bearing supporting a first portion of the output shaft for rotation, a second bearing supporting a second portion of the output shaft for rotation, and first and second planetary stages. The fastener driver also includes a housing having a cylinder support portion and a transmission housing portion in which the first and second bearings are received. The cylinder support portion and the transmission housing portion are integrally formed as a single piece.
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公开(公告)号：US11633842B2
公开(公告)日：2023-04-25
申请号：US17382965
申请日：2021-07-22
发明人： Andrew R. Wyler , Nathan T. Armstrong , Jason D. Thurner , Troy C. Thorson , John S. Scott , Jeremy R. Ebner , Daniel R. Garces , Ryan A. Dedrickson , Luke J. Skinner , Benjamin R. Suhr
摘要： A gas spring-powered fastener driver includes a cylinder, a moveable piston, a driver blade attached to the piston, the driver blade movable with the piston, a lifter including a rotary component operably coupled to the driver blade to move the driver blade from a driven position to a ready position, and a multi-stage planetary transmission. The transmission includes an output shaft operatively coupled to the lifter to provide torque thereto, a first bearing supporting a first portion of the output shaft for rotation, a second bearing supporting a second portion of the output shaft for rotation. The fastener driver also includes a housing having a cylinder support portion in which the cylinder is received and a transmission housing portion in which the first and second bearings are received to rotatably support the output shaft. The cylinder support portion and the transmission housing portion are integrally formed as a single piece.
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公开(公告)号：US20210347026A1
公开(公告)日：2021-11-11
申请号：US17382972
申请日：2021-07-22
发明人： Andrew R. Wyler , Nathan T. Armstrong , Jason D. Thurner , Troy C. Thorson , John S. Scott , Jeremy R. Ebner , Daniel R. Garces , Ryan Allen Dedrickson , Luke J. Skinner , Benjamin R. Suhr
摘要： A gas spring-powered fastener driver includes a cylinder, a moveable piston positioned within the cylinder, a driver blade attached to the piston and movable therewith between a ready position and a driven position, a lifter to move the driver blade from the driven position to the ready position, and a transmission including an output shaft operatively coupled to the lifter to provide torque to the lifter. The fastener driver also includes an input to provide torque to the transmission and a clutch positioned downstream of the input and operably coupled to the output shaft to limit an amount of torque transferred to the output shaft and the lifter. In response to an application of a reaction torque to the output shaft above a predetermined threshold, torque from the input is diverted from the output shaft via the clutch.
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公开(公告)号：US10981267B2
公开(公告)日：2021-04-20
申请号：US16170836
申请日：2018-10-25
发明人： Jonathan E. Abbott , Timothy R. Obermann , John S. Dey, IV , Benjamin R. Suhr , Richard A. Ryer , Maxwell L. Merget , Douglas R. Fieldbinder
摘要： Kickback control methods for power tools. One power tool includes a movement sensor configured to measure an angular velocity of the housing of the power tool about the rotational axis. The power tool includes an electronic processor coupled to the switching network and the movement sensor and configured to implement kickback control of the power tool. To implement the kickback control, the electronic processor is configured to control the switching network to drive the brushless DC motor, receive measurements of the angular velocity of the housing of the power tool from the movement sensor, determine that a plurality of the measurements of the angular velocity of the housing of the power tool exceed a rotation speed threshold, and control the switching network to cease driving of the brushless DC motor in response to determining that the plurality of the measurements of the angular velocity exceed the rotation speed threshold.
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公开(公告)号：US20240297513A1
公开(公告)日：2024-09-05
申请号：US18591200
申请日：2024-02-29
IPC分类号： H02J7/00
CPC分类号： H02J7/0031 , H02J7/00304 , H02J2310/22
摘要： A power tool including a housing, a motor supported by the housing, a battery pack interface configured to receive a battery pack, a switching module for selectively providing power from the battery pack to the motor, and a solid-state protection circuit. The solid-state protection circuit includes a switch configured to control current provided to the motor, and a current measurement device configured to determine a level of current supplied to the switch, and output a first signal related to the level of current supplied to the switch. The solid-state protection circuit also includes a gate driver electrically connected to the switch. The gate driver is configured to receive a control signal to disable the switch in response to the first signal indicating that the level of current supplied to the switch exceeding a current threshold.
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公开(公告)号：US20240165780A1
公开(公告)日：2024-05-23
申请号：US18430944
申请日：2024-02-02
发明人： Andrew R. Wyler , Nathan T. Armstrong , Jason D. Thurner , Troy C. Thorson , John S. Scott , Jeremy R. Ebner , Daniel R. Garces , Ryan Allen Dedrickson , Luke J. Skinner , Benjamin R. Suhr
摘要： A gas spring-powered fastener driver includes a cylinder, a moveable piston positioned within the cylinder, a driver blade attached to the piston and movable therewith between a ready position and a driven position, a lifter to move the driver blade from the driven position to the ready position, and a transmission including an output shaft operatively coupled to the lifter to provide torque to the lifter. The fastener driver also includes an input to provide torque to the transmission and a clutch positioned downstream of the input and operably coupled to the output shaft to limit an amount of torque transferred to the output shaft and the lifter. In response to an application of a reaction torque to the output shaft above a predetermined threshold, torque from the input is diverted from the output shaft via the clutch.
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公开(公告)号：US11529725B2
公开(公告)日：2022-12-20
申请号：US16158716
申请日：2018-10-12
IPC分类号： B25D16/00 , F16D27/11 , F16D27/108 , F16D27/118 , B25B23/14 , B25D11/12
摘要： A clutch mechanism for use in a rotary power tool having a motor comprises an input member to which torque from the motor is transferred and an output member movable between a first position in which the output member is engaged with the input member for co-rotation therewith, and a second position in which the output member is disengaged from the input member. The clutch mechanism further comprises a biasing member biasing the output member into the first position and an electromagnet which, when energized, moves the output member from the first position to the second position.
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公开(公告)号：US20210347025A1
公开(公告)日：2021-11-11
申请号：US17382965
申请日：2021-07-22
发明人： Andrew R. Wyler , Nathan T. Armstrong , Jason D. Thurner , Troy C. Thorson , John S. Scott , Jeremy R. Ebner , Daniel R. Garces , Ryan Allen Dedrickson , Luke J. Skinner , Benjamin R. Suhr
摘要： A gas spring-powered fastener driver includes a cylinder, a moveable piston, a driver blade attached to the piston, the driver blade movable with the piston, a lifter including a rotary component operably coupled to the driver blade to move the driver blade from a driven position to a ready position, and a multi-stage planetary transmission. The transmission includes an output shaft operatively coupled to the lifter to provide torque thereto, a first bearing supporting a first portion of the output shaft for rotation, a second bearing supporting a second portion of the output shaft for rotation. The fastener driver also includes a housing having a cylinder support portion in which the cylinder is received and a transmission housing portion in which the first and second bearings are received to rotatably support the output shaft. The cylinder support portion and the transmission housing portion are integrally formed as a single piece.
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