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公开(公告)号：US20240316742A1
公开(公告)日：2024-09-26
申请号：US18188066
申请日：2023-03-22
发明人： Xingjian Jing
IPC分类号： B25D17/04
CPC分类号： B25D17/043 , B25D2217/0073 , B25D2250/371
摘要： Vibration suppression handle structures for high-vibration handheld machines (e.g., jackhammers, hydraulic breakers, hammer drills, soil compactors, etc.) are provided that offer improved vibration suppression. The provided handle structures include a handle that is connected to vibration suppression systems that include an arrangement of support members and resilient members for improved vibration suppression over typical high-vibration handled machines while remaining a compact design. A portion of the support members are arranged as X-shaped support structures. In at least some embodiments, the handle structures include a system by which to adjust a stiffness, and therefore vibration suppression, of the vibration suppression systems. Jackhammers are further provided that include the provided vibration suppression handle structures.
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公开(公告)号：US11897109B2
公开(公告)日：2024-02-13
申请号：US17575776
申请日：2022-01-14
申请人： MAKITA CORPORATION
IPC分类号： B25D17/04
CPC分类号： B25D17/043 , B25D2211/068 , B25D2250/345 , B25D2250/371
摘要： An objective is to provide a technique to securely protect the striking tool even when the striking tool inadvertently falls down. A striking tool including a rotating shaft relatively rotatably connect a main body with a handle, a first elastic member reducing transmitting of vibration from the main body to the handle in a case that the handle relatively rotates to the main body, wherein the handle includes a battery mounting portion to which battery to drive the motor is attachable and the handle is arranged to relatively move to the main body across the rotating shaft, and an adjuster such that the relative movement amount of the handle to the main body in a predetermined direction is adjusted to be larger than the relative movement amount in a direction other than the predetermined direction.
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公开(公告)号：US20240042589A1
公开(公告)日：2024-02-08
申请号：US18356037
申请日：2023-07-20
IPC分类号： B25D11/12
CPC分类号： B25D11/12 , B25D2250/095 , B25D2217/0073 , B25D2217/0061 , B25D2250/371 , B25D2250/121
摘要： A percussion tool includes a housing having a top end, a bottom end, a front end, and a rear end. The housing defines a barrel portion, a handle portion opposite the barrel portion, and a motor housing portion between the barrel portion and the handle portion. The percussion tool also includes an electric motor positioned within the motor housing portion and a percussion mechanism driven by the motor and including a striker supported for reciprocation in the housing. The striker defines a striker axis in a reciprocating direction. The percussion tool further includes a battery receptacle supported by the housing and a battery pack removably coupled to the battery receptacle for providing power to the motor. The battery pack and the battery receptacle define a battery axis extending longitudinally through the battery pack and battery receptacle. The striker axis and the battery axis are parallel.
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公开(公告)号：US11858101B2
公开(公告)日：2024-01-02
申请号：US17980980
申请日：2022-11-04
CPC分类号： B25D16/00 , B25C1/047 , B25C1/06 , B25D9/04 , B25D2250/371
摘要： A driver capable of suppressing increase in a load torque of a motor when a striking mechanism is moved by the torque of the motor against a force of a first moving mechanism is provided. The driver includes a striking mechanism 12 movable in a first direction B1 and a second direction B2 opposite to the first direction B1 and a first moving mechanism configured to move the striking mechanism 12 in the first direction B1 to strike a fastener, and the driver further includes a motor, a second moving mechanism 45 rotated by the torque of the motor and configured to move the striking mechanism 12 in the second direction against a force of the first moving mechanism, and torque suppression mechanisms 45A to 45H configured to suppress increase in the torque of the motor when the striking mechanism 12 is moved in the second direction B2.
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公开(公告)号：US20230339087A1
公开(公告)日：2023-10-26
申请号：US18136639
申请日：2023-04-19
申请人： MONTABERT
发明人： Eric FOUGEROUX
CPC分类号： B25D9/26 , B25D9/12 , B25D2209/002 , B25D2250/125 , B25D2250/371
摘要： A percussion apparatus including a pressure regulating device comprising a regulating cylinder; a connecting channel opening into the regulating cylinder; a pressure regulating slide mounted movable in translation within the regulating cylinder and delimiting, with the regulating cylinder, a connecting passage having a passage section which varies according to the regulating position occupied by the pressure regulating slide; a biasing element configured to exert a prestress on the pressure regulating slide; and a prestress setting device configured to set a prestress exerted by the biasing element on the pressure regulating slide.
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公开(公告)号：US20230241753A1
公开(公告)日：2023-08-03
申请号：US18132836
申请日：2023-04-10
发明人： Madan Mandal , Mark T. McClung
CPC分类号： B25F5/006 , B25B21/02 , B25D2250/371
摘要： An impact tool is provided with vibration isolators to reduce vibrations felt by the operator gripping the handle of the tool. The impact tool has a hammer and an anvil that impact against each other during use. The impacts create undesirable vibrations in the tool housing and noise in the work area. The isolators are useful in minimizing such vibrations and noise.
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公开(公告)号：US11685032B2
公开(公告)日：2023-06-27
申请号：US17359791
申请日：2021-06-28
发明人： Cody J. Kollmann , Steven T. Tworek
CPC分类号： B25D17/088 , B25D11/04 , B25D2217/0042 , B25D2250/095 , B25D2250/371
摘要： A rotary impact tool includes a housing, an electric motor supported in the housing, and a drive assembly. The drive assembly includes an anvil having a longitudinal bore for selectively receiving a tool bit, and a plurality of radial slots extending from the longitudinal bore through the anvil. The rotary impact tool further includes a bit holding device including a plurality of ball detents received in the respective radial slots, and a collar slidably disposed on the anvil having an interior surface for maintaining a portion of the ball detents within the longitudinal bore, and collar spring for biasing the collar rearward to a first collar position. The bit holding device further includes a helical detent spring surrounding the anvil having a continuous helical structure with a plurality of protrusions extending into the radial slots, the protrusions are for biasing the ball detents toward an open end of the bore.
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公开(公告)号：US10040184B2
公开(公告)日：2018-08-07
申请号：US14602677
申请日：2015-01-22
申请人： Black & Decker Inc.
CPC分类号： B25D17/24 , B23Q11/0032 , B25D17/043 , B25D2250/121 , B25D2250/371 , B25F5/006
摘要： A power tool includes a housing; a handle having two ends, each being moveably mounted to the housing associated mountings; and a biasing mechanism connected between the housing and the handle; wherein at least one of the mountings comprises: a first part mounted on the housing and a second part mounted on the one end of the handle, one part comprising a passageway, the other comprising a rod, having a longitudinal axis, which is located in and capable of being axially slid within the passageway, enabling the end of the handle to move towards or away from the housing; at least part of the wall of the passageway in a lengthwise direction of the passageway comprises a curved convex support surface capable of engaging the side of the rod to enable the rod to pivot within the passageway about an axis which is perpendicular to the axis of the rod.
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公开(公告)号：US09993915B2
公开(公告)日：2018-06-12
申请号：US14602658
申请日：2015-01-22
申请人： Black & Decker Inc.
CPC分类号： B25D17/043 , B25D16/00 , B25D17/24 , B25D2250/121 , B25D2250/371 , B25F5/006
摘要： A tool includes a housing; a handle having first and second ends mounted thereto via respective mountings, and a biasing mechanism connected between the housing and handle. At least one mounting comprises parts mounted on the housing and end of the handle respectively, one part comprising a support, the other comprising a pin having a longitudinal axis, located in the support and capable of moving linearly or being rotated therein so the handle may move accordingly. The pin is in a passage of the support having larger length than width, allowing free movement either rotationally about its axis or linearly along the length for rotational or linear movement of the end of the handle. The width size varies along the passage, providing a convex surface along at least part of the length, engageable by the pin's side to enable pivoting within the passage about an axis parallel to the length.
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公开(公告)号：US09975231B2
公开(公告)日：2018-05-22
申请号：US14939041
申请日：2015-11-12
申请人： Jared Scott Jones
发明人： Jared Scott Jones
IPC分类号： B25D3/00
CPC分类号： B25D3/00 , B25D2250/371
摘要： The self-contained force magnifying chisel disclosed herein includes a chisel portion, a striker, at least a portion of which is disposed within the chisel portion, and a spring, a least a portion of which is disposed within the chisel portion. The spring attaches to both the chisel portion and the striker. When the striker is pulled by a user, the spring stores mechanical energy. When the user releases the striker, the striker impacts on the chisel portion transferring the mechanical energy stored in the spring into a driving force. The force is magnified by a chisel blade on the chisel portion of the self-contained force magnifying chisel and applied to a workpiece.
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