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公开(公告)号：US11577372B2
公开(公告)日：2023-02-14
申请号：US17719869
申请日：2022-04-13
发明人： David A. Bierdeman , Troy C. Thorson , Jacob P. Schneider , Mackenzie J. Nick , Nathan Bandy , Travis W. Leathrum , Mitchell T. Neuhoff , Mark C. Hughes , David C. Graf , Marcus Wechselberger , Leonard F. Mikat-Stevens , Jacob N. Zimmerman , Jason M. Julius , Rosalie C. Phillips , Beth E. Cholst
摘要： A powered fastener driver includes a driver blade movable from a top-dead-center position to a bottom-dead-center position for driving a fastener into a workpiece, a drive unit for providing torque to move the driver blade toward the top-dead-center position, and a rotary lifter engageable with the driver blade. The rotary lifter having a body and a drive pin coupled to the body. A roller is rotatably coupled to the drive pin and includes a non-cylindrical outer peripheral surface defining a plurality of engagement sections. A tooth of the driver blade is configured to engage one of the engagement sections when moving the driver blade from the bottom-dead-center position toward the top-dead-center position.
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公开(公告)号：US20240308042A1
公开(公告)日：2024-09-19
申请号：US18577004
申请日：2022-07-15
发明人： David A. Bierdeman , Troy C. Thorson , Jacob N. Zimmerman , Andrew R. Wyler , Travis W. Leathrum , David C. Graf , Alex J. Brasel
摘要： A gas spring-powered fastener driver includes a cylinder, a storage chamber cylinder having pressurized air in communication with the cylinder, a moveable piston positioned within the cylinder, a driver blade attached to the piston and movable therewith between a top-dead-center position and a bottom-dead-center position, the driver blade defining a driving axis, a lifter operable to move the driver blade from the bottom-dead-center position toward the top-dead-center position, the lifter is configured to engage the driver blade when moving the driver blade from the bottom-dead-center position toward the top-dead-center position, a bumper positioned beneath the piston in a vertical direction to absorb impact energy from the piston, and a valve positioned in the storage chamber cylinder. In response to the piston compressing the bumper while absorbing impact energy from the piston, the valve adds pressurized air from the cylinder to the storage chamber cylinder.
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公开(公告)号：US20230122029A1
公开(公告)日：2023-04-20
申请号：US18068576
申请日：2022-12-20
发明人： David A. Bierdeman , Troy C. Thorson , Jacob N. Zimmerman , Andrew R. Wyler , Travis W. Leathrum , David C. Graf , Alex J. Brasel
摘要： A gas spring-powered fastener driver includes a cylinder, a storage chamber cylinder having pressurized air in communication with the cylinder, a moveable piston positioned within the cylinder, a driver blade extending from a first side of the piston and movable therewith between a top-dead-center position and a bottom-dead-center position, a one-way seal carried onboard the piston and disposed between the piston and the cylinder, the one-way seal being configured permit a bypass flow of pressurized air from the first side of the piston, past the one-way seal, and into a space within the cylinder adjacent an opposite, second side of the piston during movement of the piston and driver blade from the top-dead-center position to the bottom-dead-center position, thereby increasing a pressure of the pressurized air within the cylinder and storage chamber cylinder, and a pressure relief valve in fluid communication with the storage chamber cylinder.
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公开(公告)号：US11571794B2
公开(公告)日：2023-02-07
申请号：US17719855
申请日：2022-04-13
发明人： David A. Bierdeman , Troy C. Thorson , Jacob P. Schneider , Mackenzie J. Nick , Nathan Bandy , Travis W. Leathrum , Mitchell T. Neuhoff , Mark C. Hughes , David C. Graf , Marcus Wechselberger , Leonard F. Mikat-Stevens , Jacob N. Zimmerman , Jason M. Julius , Rosalie C. Phillips , Beth E. Cholst
摘要： A powered fastener driver includes a driver blade movable from a top-dead-center position to a bottom-dead-center position for driving a fastener into a workpiece, a drive unit for providing torque to move the driver blade toward the top-dead-center position, and a rotary lifter engageable with the driver blade. The lifter having a body and a drive pin coupled to the body. A roller is positioned on the drive pin and engages with a tooth of the driver blade when moving the driver blade from the bottom-dead-center position toward the top-dead-center position. The roller includes a first engagement section that receives an end portion of the tooth and a second engagement section. An engagement member engages the second engagement section for aligning the first engagement section of the roller with the end portion of the tooth to facilitate meshing between the end portion of the tooth and the roller.
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公开(公告)号：US20210347022A1
公开(公告)日：2021-11-11
申请号：US17313096
申请日：2021-05-06
摘要： A powered fastener driver comprising a housing, a nosepiece coupled to the housing and extending therefrom, a driver blade movable within the nosepiece between a ready position and a driven position, and a pusher mechanism coupled to the nosepiece for individually transferring collated fasteners in a canister magazine to a driver channel in the nosepiece in which the driver blade is movable. The pusher mechanism includes a feeder arm and a linkage positioned between the feeder arm and the driver blade. The feeder arm is engageable with individual fasteners in the nosepiece for sequentially pushing each of the fasteners into the driver channel in response to movement of the feeder arm toward the driver channel. The linkage is movable to advance the feeder arm toward the driver channel in response to contact with the driver blade as the driver blade moves from the driven position toward the ready position.
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公开(公告)号：US20240227147A9
公开(公告)日：2024-07-11
申请号：US18493927
申请日：2023-10-25
IPC分类号： B25C1/04
摘要： A powered fastener driver including a housing, an inner cylinder within the housing, and a piston movable within the inner cylinder from a TDC position to a BDC position. The piston has a diameter of less than 1.7 inches. A stroke length of the piston is between the TDC position and the BDC position measuring greater than 3 inches. A driver blade is attached to the piston for movement therewith along a driving axis. A lifter is operable to move the piston and driver blade from the BDC position toward the TDC position. A drive unit is operably coupled to the lifter to provide torque thereto, causing the lifter to rotate. A source of pressurized gas is in fluid communication with the inner cylinder. A pressure of the pressurized gas acting on the piston at the TDC position is greater than 180 psi.
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公开(公告)号：US20230191575A1
公开(公告)日：2023-06-22
申请号：US18108917
申请日：2023-02-13
发明人： David A. Bierdeman , Troy C. Thorson , Jacob P. Schneider , Mackenzie J. Nick , Nathan Bandy , Travis W. Leathrum , Mitchell T. Neuhoff , Mark C. Hughes , David C. Graf , Marcus Wechselberger , Leonard F. Mikat-Stevens , Jacob N. Zimmerman , Jason M. Julius , Rosalie C. Phillips , Beth E. Cholst
摘要： A powered fastener driver includes a driver blade and a drive unit having an output shaft for providing torque to move the driver blade from the bottom-dead-center position toward the top-dead-center position. A rotary lifter is engageable with the driver blade and configured to receive torque from the output shaft of the drive unit in a first rotational direction for returning the driver blade from the bottom-dead-center position toward the top-dead-center position. A kickout arrangement is defined between the lifter and the output shaft and configured to permit limited movement of the lifter relative to the output shaft between a first position and a second position. The kickout arrangement having a curvilinear slot defined in the rotary lifter in which a portion of the output shaft is received. Movement of the rotary lifter from the first position toward the second position causes the slot to move relative to the output shaft, while the output shaft remains within the slot.
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公开(公告)号：US20220234182A1
公开(公告)日：2022-07-28
申请号：US17719855
申请日：2022-04-13
发明人： David A. Bierdeman , Troy C. Thorson , Jacob P. Schneider , Mackenzie J. Nick , Nathan Bandy , Travis W. Leathrum , Mitchell T. Neuhoff , Mark C. Hughes , David C. Graf , Marcus Wechselberger , Leonard F. Mikat-Stevens , Jacob N. Zimmerman , Jason M. Julius , Rosalie C. Phillips , Beth E. Cholst
摘要： A powered fastener driver includes a driver blade movable from a top-dead-center position to a bottom-dead-center position for driving a fastener into a workpiece, a drive unit for providing torque to move the driver blade toward the top-dead-center position, and a rotary lifter engageable with the driver blade. The lifter having a body and a drive pin coupled to the body. A roller is positioned on the drive pin and engages with a tooth of the driver blade when moving the driver blade from the bottom-dead-center position toward the top-dead-center position. The roller includes a first engagement section that receives an end portion of the tooth and a second engagement section. An engagement member engages the second engagement section for aligning the first engagement section of the roller with the end portion of the tooth to facilitate meshing between the end portion of the tooth and the roller.
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公开(公告)号：US11951601B2
公开(公告)日：2024-04-09
申请号：US17584060
申请日：2022-01-25
发明人： Beth E. Cholst , Troy C. Thorson , Jacob P. Schneider , Mackenzie J. Nick , Nathan Bandy , David A Bierdeman , Travis W. Leathrum , Mitchell T. Neuhoff , Mark C. Hughes , David C. Graf , Marcus Wechselberger
摘要： A powered fastener driver includes a driver blade movable from a top-dead-center (TDC) position to a bottom-dead-center (BDC) position for driving a fastener into a workpiece and a drive unit for providing torque to move the driver blade from the BDC position toward the TDC position. A rotary lifter is engageable with the driver blade and configured to receive torque from the drive unit for returning the driver blade from the BDC position toward the TDC position. The lifter has a body, a drive pin coupled to the body, and a roller positioned on the drive pin. The roller includes an engagement section configured to receive an end portion of a tooth of the driver blade. The lifter includes a means for aligning the engagement section with the end portion of the tooth on the driver blade to facilitate meshing between the end portion and the roller.
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公开(公告)号：US11865683B2
公开(公告)日：2024-01-09
申请号：US17313096
申请日：2021-05-06
摘要： A powered fastener driver comprising a housing, a nosepiece coupled to the housing and extending therefrom, a driver blade movable within the nosepiece between a ready position and a driven position, and a pusher mechanism coupled to the nosepiece for individually transferring collated fasteners in a canister magazine to a driver channel in the nosepiece in which the driver blade is movable. The pusher mechanism includes a feeder arm and a linkage positioned between the feeder arm and the driver blade. The feeder arm is engageable with individual fasteners in the nosepiece for sequentially pushing each of the fasteners into the driver channel in response to movement of the feeder arm toward the driver channel. The linkage is movable to advance the feeder arm toward the driver channel in response to contact with the driver blade as the driver blade moves from the driven position toward the ready position.
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