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公开(公告)号：US20240278343A1
公开(公告)日：2024-08-22
申请号：US18650629
申请日：2024-04-30
CPC分类号： B23D51/10 , B23D49/162 , B23D51/16
摘要： A reciprocating saw includes a housing, a motor, a drive mechanism, and a support assembly. The drive mechanism includes a driven gear, a connecting rod, and a spindle. A first end of the connecting rod is moveably coupled to the spindle by a roller pin. Rotary motion of the motor is translated into linear reciprocating motion of the spindle by the driven gear and the connecting rod. The support assembly rotationally supports the roller pin and includes a housing which defines a slot. A first bearing is positioned within the slot at a first end of the roller pin, and a second bearing is positioned within the slot at a second end of the roller pin. At least one of the first end and the second end of the roller pin extends completely though the first bearing and the second bearing, respectively.
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公开(公告)号：US11926011B2
公开(公告)日：2024-03-12
申请号：US16973371
申请日：2019-04-12
发明人： Ryosuke Nakano , Yoshikazu Yokoyama
CPC分类号： B23Q11/121 , B25F5/02 , B23D49/165 , B23D51/16
摘要： A powered tool includes a housing, a drive source, a drive body, a sealing part, and a holding part. The drive source is rotatable in the housing. The drive body is supported in the housing and reciprocatable by a driving force of the drive source. The sealing part is in contact with an outer peripheral surface of the drive body. The holding part is positioned around the drive body. The holding part surrounds the sealing part and supports the sealing part to be in contact with the outer peripheral surface of the drive body. The holding part includes a lubrication oil accommodating part retaining a lubricant supplied to the outer peripheral surface of the drive body.
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公开(公告)号：US11839964B2
公开(公告)日：2023-12-12
申请号：US17654133
申请日：2022-03-09
申请人： Black & Decker Inc.
发明人： Yanchao Wang
CPC分类号： B25F5/006 , B23D49/162 , B23D49/165 , B23D51/16
摘要： A reciprocating power tool may include a driving system including a motor and a transmission received in a housing to drive a reciprocating mechanism. A counterbalance mechanism may be coupled between the driving system and the reciprocating mechanism. The counterbalance mechanism may include a rotating counterbalance mechanism including a first rotating counterweight member and a second rotating counterweight member coupled to an output gear of the driving system. The counterbalance mechanism may include a rocking counterweight member coupled between the output gear and the housing. The output gear may include a recessed portion in which the first rotating counterweight member and a clutching system are received.
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公开(公告)号：US11728700B2
公开(公告)日：2023-08-15
申请号：US17165023
申请日：2021-02-02
发明人： Andrew T. Beyerl , Derek J. Schwab , Samantha L. Billetdeaux , Kyle Greunke , Hans T. Banholzer , Carmen J. Castanos
IPC分类号： H02K1/18 , H02K5/16 , H02K7/08 , H02K7/14 , H02K11/33 , H02K21/16 , H02K9/22 , B25F5/00 , B23D51/16
CPC分类号： H02K1/185 , B25F5/008 , H02K5/161 , H02K7/083 , H02K7/145 , H02K9/227 , H02K11/33 , H02K21/16 , B23D51/16 , H02K2211/03
摘要： A power tool includes a housing having a rear wall, a motor assembly coupled to the rear wall, and a plurality of mounting legs projecting from the rear wall toward the motor assembly. The motor assembly defines a motor axis, and includes a stator assembly defining a plurality of axially extending mounting apertures. Each mounting leg defines a threaded boss corresponding to a respective mounting aperture of the stator assembly, and each threaded boss is configured to receive a threaded fastener. The mounting legs are angularly spaced at unequal intervals about the motor axis.
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公开(公告)号：US20230226628A1
公开(公告)日：2023-07-20
申请号：US18123728
申请日：2023-03-20
发明人： Joshua Adams , Ryan J. Denissen
CPC分类号： B23D49/162 , B23D51/10 , B23D51/16
摘要： A reciprocating saw includes a housing, a motor, and a drive mechanism. The motor includes an output gear rotatable about a motor axis. The drive mechanism includes a driven gear that engages the output gear and is rotated by the motor. The driven gear has a circumference and is vertically-oriented within the housing. The drive mechanism also includes an output shaft coupled to the driven gear and configured to reciprocate relative to the housing. The drive mechanism further includes a single counterweight fixed relative to the driven gear and rotating with the driven gear through a path and in a same direction. As the counterweight moves through a rearward half of the path, the counterweight generally moves in an upward direction, and as the counterweight moves through a forward half of the path, the counterweight generally moves in a downward direction.
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公开(公告)号：US20230082901A1
公开(公告)日：2023-03-16
申请号：US17892457
申请日：2022-08-22
申请人： MAKITA CORPORATION
发明人： Tomofumi KAWAI , Shinnosuke BABA
摘要： A reciprocating cutting tool allows a more stable operation. A reciprocating saw includes a motor extending vertically, a reciprocating transmitter located below the motor, a slider extending in a front-rear direction, connected to the reciprocation transmitter, and movable in the front-rear direction, a power housing holding the motor and the reciprocation transmitter, a grip housing extending rearward from the power housing, a battery housing located behind the grip housing, and a connecting housing located below the grip housing and connecting the power housing to the battery housing.
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公开(公告)号：US11453093B2
公开(公告)日：2022-09-27
申请号：US16450538
申请日：2019-06-24
申请人： Black & Decker Inc.
摘要： A power-driven reciprocating tool may include a transmission mechanism that converts rotational force from a motor to linear force to be output by a reciprocating mechanism coupled thereto, and a counterbalancing mechanism coupled to the transmission mechanism to counter-balance forces generated by the reciprocating mechanism. The transmission mechanism may include a planetary gear assembly including a sun gear in meshed engagement with at least one planet gear. In response to a force converted by and transmitted from the transmission mechanism, the reciprocating mechanism may move in a first linear direction, and the counterbalancing mechanism may move in a second linear direction, opposite the first linear direction. The opposite linear movement of the reciprocating mechanism and the counterbalancing mechanism may counteract forces generated by the reciprocating motion of the reciprocating mechanism, thus reducing vibration output by the tool.
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公开(公告)号：US11241240B2
公开(公告)日：2022-02-08
申请号：US16907197
申请日：2020-06-20
发明人： Conor Mac An Tuile , James G. Walen
摘要： A surgical sagittal saw cartridge that includes a guide bar formed from an inner plate and opposed outer plates, the inner plate defining a head. The cartridge has a blade that is disposed against the head of the inner plate. The inner plate may comprise an inner tine and/or two opposed outer tines. The inner tine may be formed to define the head against which the blade is disposed. The outer tines extend distally so as to define a space between the outer tines in which the blade is seated.
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公开(公告)号：US20220009011A1
公开(公告)日：2022-01-13
申请号：US17370178
申请日：2021-07-08
摘要： A reciprocating saw includes a casing, a power assembly, a transmission assembly, a reciprocating assembly, a swing assembly, and a balance weight. The transmission assembly includes a first transmission member that is capable of being driven by the power assembly to rotate around a first axis. The swing assembly includes a floating support member configured to drive the reciprocating assembly to perform an orbital motion. The first transmission member is provided with a cam surface configured to be in contact with the floating support member to drive the floating support member to move in an up-and-down direction parallel to the first axis. The balance weight is provided with an escape opening, and the escape opening is disposed on a path on which the floating support member moves in the up-and-down direction.
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公开(公告)号：US11221611B2
公开(公告)日：2022-01-11
申请号：US16254910
申请日：2019-01-23
摘要： A power tool includes a housing and a sensor, a machine learning controller, a motor, and an electronic controller supported by the housing. The sensor is configured to generate sensor data indicative of an operational parameter of the power tool. The machine learning controller includes a first processor and a first memory and is coupled to the sensor. The machine learning controller further includes a machine learning control program configured to receive the sensor data, process the sensor data using the machine learning control program, and generate an output based on the sensor data using the machine learning control program. The electronic controller includes a second processor and a second memory and is coupled to the motor and to the machine learning controller. The electronic controller is configured to receive the output from the machine learning controller and control the motor based on the output.
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