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公开(公告)号：US07814986B2
公开(公告)日：2010-10-19
申请号：US12168580
申请日：2008-07-07
IPC分类号： B25D17/24
CPC分类号： B25D17/08 , B25D17/24 , B25D17/26 , B25D2211/003
摘要： A powered hammer includes a housing, a tool holder coupled to the housing and configured to hold a tool, a motor within the housing, a cylinder disposed within the housing, and a piston slideably mounted within the cylinder. A drive mechanism converts rotary output of the motor into a reciprocating motion of the piston. The drive mechanism includes a crank shaft rotationally driven by the motor, a drive pin eccentrically mounted on the crank shaft, and a con rod with a first end connected to the drive pin and a second end connected to the piston. A ram is slideably mounted forward of the piston that is reciprocatingly driven by the piston. A beat piece is slideably mounted forward of the ram. The beat piece is repetitively struck by the reciprocating ram, which in turn repetitively strikes an end of the tool when held in the tool holder to transfer the momentum of the ram to the tool. Lubrication fluid covers at least part of the drive mechanism. A rear piston chamber is formed within an end of the cylinder, rearward of the piston, the volume of which repetitively changes as the piston moves within the cylinder, causing air within the housing to be at least one of drawn into and blown out of the rear piston chamber. The movement of air causes the lubrication fluid to move within the housing. A longitudinal passageway defined in at least one of the crank shaft and the drive pin enables passage of air and the lubricating fluid to assist in movement of the lubrication fluid within the housing.
摘要翻译： 动力锤包括壳体，联接到壳体并且构造成保持工具的工具架，壳体内的马达，设置在壳体内的气缸，以及可滑动地安装在气缸内的活塞。 驱动机构将马达的旋转输出转换为活塞的往复运动。 驱动机构包括由电动机旋转驱动的曲柄轴，偏心安装在曲轴上的驱动销以及连接到驱动销的第一端的连杆和连接到活塞的第二端。 活塞可滑动地安装在由活塞往复驱动的活塞的前方。 一个节拍片可滑动地安装在柱塞的前面。 跳动件被往复运动的冲头重复地撞击，往复运动的冲头在被保持在工具架中时反复地撞击工具的端部，以将冲头的动量传递到工具。 润滑液覆盖驱动机构的至少一部分。 后活塞室形成在气缸的端部内，活塞的后部，当活塞在气缸内移动时，该活塞的体积重复地改变，使得壳体内的空气至少被吸入和吹出 后活塞室。 空气的运动导致润滑流体在壳体内移动。 限定在曲柄轴和驱动销中的至少一个中的纵向通道使得空气和润滑流体能够通过以帮助润滑流体在壳体内移动。
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公开(公告)号：US07413026B2
公开(公告)日：2008-08-19
申请号：US11823208
申请日：2007-06-27
IPC分类号： B25D17/24
CPC分类号： B25D17/08 , B25D17/24 , B25D17/26 , B25D2211/003
摘要： A powered hammer includes a housing, a tool holder coupled to the housing and configured to hold a tool, a motor within the housing, a cylinder disposed within the housing, and a piston slideably mounted within the cylinder. A drive mechanism converts rotary output of the motor into a reciprocating motion of the piston. The drive mechanism includes a crank shaft rotationally driven by the motor, a drive pin eccentrically mounted on the crank shaft, and a con rod with a first end connected to the drive pin and a second end connected to the piston. A ram is slideably mounted forward of the piston that is reciprocatingly driven by the piston. A beat piece is slideably mounted forward of the ram. The beat piece is repetitively struck by the reciprocating ram, which in turn repetitively strikes an end of the tool when held in the tool holder to transfer the momentum of the ram to the tool. Lubrication fluid covers at least part of the drive mechanism. A rear piston chamber is formed within an end of the cylinder, rearward of the piston, the volume of which repetitively changes as the piston moves within the cylinder, causing air within the housing to be at least one of drawn into and blown out of the rear piston chamber. The movement of air causes the lubrication fluid to move within the housing. A longitudinal passageway defined in at least one of the crank shaft and the drive pin enables passage of air and the lubricating fluid to assist in movement of the lubrication fluid within the housing.
摘要翻译： 动力锤包括壳体，联接到壳体并且构造成保持工具的工具架，壳体内的马达，设置在壳体内的气缸，以及可滑动地安装在气缸内的活塞。 驱动机构将马达的旋转输出转换为活塞的往复运动。 驱动机构包括由电动机旋转驱动的曲柄轴，偏心安装在曲轴上的驱动销以及连接到驱动销的第一端的连杆和连接到活塞的第二端。 活塞可滑动地安装在由活塞往复驱动的活塞的前方。 一个节拍片可滑动地安装在柱塞的前面。 跳动件被往复运动的冲头重复地撞击，往复运动的冲头在被保持在工具架中时反复地撞击工具的端部，以将冲头的动量传递到工具。 润滑液覆盖驱动机构的至少一部分。 后活塞室形成在气缸的端部内，活塞的后部，当活塞在气缸内移动时，该活塞的体积重复地改变，使得壳体内的空气至少被吸入和吹出 后活塞室。 空气的运动导致润滑流体在壳体内移动。 限定在曲柄轴和驱动销中的至少一个中的纵向通道使得空气和润滑流体能够通过以帮助润滑流体在壳体内移动。
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公开(公告)号：US08584769B2
公开(公告)日：2013-11-19
申请号：US12876403
申请日：2010-09-07
IPC分类号： B25D17/24
CPC分类号： B25D17/043 , B25D2250/371
摘要： A motorized hammer has a body and a tool holder which is mounted on the front of the body and is capable of imparting impacts via the tool in the holder. A rear handle is, moveably mounted to the rear of the body via at least one movement control mechanism which is capable of moving towards or away from the body. A biasing mechanism biases the rear handle away from the body and each movement control mechanism includes a first mount. A rod having a longitudinal axis is rigidly connected at one of it ends to the first mount. A second mount slidingly engages with the rod at two distinct points only along its length to allow the rod to slide relative to the second mount in a direction parallel to the longitudinal axis. The second mount prevents the rod from moving in a direction perpendicular to the longitudinal axis.
摘要翻译： 电动锤具有主体和工具架，其安装在主体的前部并且能够通过工具在保持器中施加冲击。 后手柄通过至少一个移动控制机构可移动地安装到身体的后部，该移动控制机构能够朝向或远离身体移动。 偏置机构将后手柄偏离主体，并且每个移动控制机构包括第一安装件。 具有纵向轴线的杆在其一端刚性地连接到第一安装件。 第二安装座仅沿着其长度在两个不同的点处滑动地与杆接合，以允许杆在平行于纵向轴线的方向上相对于第二安装件滑动。 第二安装件防止杆在垂直于纵向轴线的方向上移动。
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公开(公告)号：US20110127056A1
公开(公告)日：2011-06-02
申请号：US12876403
申请日：2010-09-07
IPC分类号： B25D17/24
CPC分类号： B25D17/043 , B25D2250/371
摘要： A hammer drill comprising: a body 2 in which is mounted a motor 48 and a hammer mechanism 46 which is driven by the motor 48 when the motor 48 is activated; a tool holder 8 mounted on the front of the body 2 and which is capable of holding a cutting tool 12, the hammer mechanism 46, when driven by the motor 48, capable of imparting impacts to the cutting tool 12, when held by the tool holder 8; a rear handle 4, moveably mounted on to the rear of the body 2 via at least one movement control mechanism and which is capable of moving towards or away from the body 2; a biasing mechanism 104 which biases the rear handle 4 away from the body 2; wherein each movement control mechanism comprises: a first mount; a rod 106, having a longitudinal axis 107, rigidly connected at one of it ends to the first mount; a second mount which slidingly engages with the rod 106 at two distinct points only along its length to allow the rod 106 to slide relative to the second mount in a direction parallel to the longitudinal axis 107 whilst preventing the rod 106 from moving relative to second mount in a direction perpendicular to longitudinal axis 107; wherein one mount 70, 133, 136 is attached to the body 2 and the other mount 92 is attached to the rear handle 4.
摘要翻译： 一种锤钻，包括：主体2，其中安装有马达48和马达机构46，马达48在马达48启动时由马达48驱动; 安装在主体2的前部并且能够保持切割工具12的工具架8，当由电动机48驱动时，锤机构46能够在由工具保持时对切削工具12施加冲击 持有人8 后手柄4，其经由至少一个移动控制机构可移动地安装到主体2的后部，并且能够朝向或远离主体2移动; 偏置机构104，其使后手柄4偏离主体2; 其中每个移动控制机构包括：第一安装件; 杆106具有纵向轴线107，其一端刚性连接到第一安装件; 第二安装件，其仅沿其长度在两个不同点处与杆106滑动接合，以允许杆106在平行于纵向轴线107的方向上相对于第二安装件滑动，同时防止杆106相对于第二安装件移动 在垂直于纵向轴线107的方向上; 其中一个安装件70,133,136连接到主体2，而另一安装件92附接到后把手4。
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公开(公告)号：US20080006420A1
公开(公告)日：2008-01-10
申请号：US11823208
申请日：2007-06-27
IPC分类号： B25D11/00
CPC分类号： B25D17/08 , B25D17/24 , B25D17/26 , B25D2211/003
摘要： A powered hammer includes a housing, a tool holder coupled to the housing and configured to hold a tool, a motor within the housing, a cylinder disposed within the housing, and a piston slideably mounted within the cylinder. A drive mechanism converts rotary output of the motor into a reciprocating motion of the piston. The drive mechanism includes a crank shaft rotationally driven by the motor, a drive pin eccentrically mounted on the crank shaft, and a con rod with a first end connected to the drive pin and a second end connected to the piston. A ram is slideably mounted forward of the piston that is reciprocatingly driven by the piston. A beat piece is slideably mounted forward of the ram. The beat piece is repetitively struck by the reciprocating ram, which in turn repetitively strikes an end of the tool when held in the tool holder to transfer the momentum of the ram to the tool. Lubrication fluid covers at least part of the drive mechanism. A rear piston chamber is formed within an end of the cylinder, rearward of the piston, the volume of which repetitively changes as the piston moves within the cylinder, causing air within the housing to be at least one of drawn into and blown out of the rear piston chamber. The movement of air causes the lubrication fluid to move within the housing. A longitudinal passageway defined in at least one of the crank shaft and the drive pin enables passage of air and the lubricating fluid to assist in movement of the lubrication fluid within the housing.
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公开(公告)号：US20080264660A1
公开(公告)日：2008-10-30
申请号：US12168580
申请日：2008-07-07
IPC分类号： B25D17/26
CPC分类号： B25D17/08 , B25D17/24 , B25D17/26 , B25D2211/003
摘要： A powered hammer includes a housing, a tool holder coupled to the housing and configured to hold a tool, a motor within the housing, a cylinder disposed within the housing, and a piston slideably mounted within the cylinder. A drive mechanism converts rotary output of the motor into a reciprocating motion of the piston. The drive mechanism includes a crank shaft rotationally driven by the motor, a drive pin eccentrically mounted on the crank shaft, and a con rod with a first end connected to the drive pin and a second end connected to the piston. A ram is slideably mounted forward of the piston that is reciprocatingly driven by the piston. A beat piece is slideably mounted forward of the ram. The beat piece is repetitively struck by the reciprocating ram, which in turn repetitively strikes an end of the tool when held in the tool holder to transfer the momentum of the ram to the tool. Lubrication fluid covers at least part of the drive mechanism. A rear piston chamber is formed within an end of the cylinder, rearward of the piston, the volume of which repetitively changes as the piston moves within the cylinder, causing air within the housing to be at least one of drawn into and blown out of the rear piston chamber. The movement of air causes the lubrication fluid to move within the housing. A longitudinal passageway defined in at least one of the crank shaft and the drive pin enables passage of air and the lubricating fluid to assist in movement of the lubrication fluid within the housing.
摘要翻译： 动力锤包括壳体，联接到壳体并且构造成保持工具的工具架，壳体内的马达，设置在壳体内的气缸，以及可滑动地安装在气缸内的活塞。 驱动机构将马达的旋转输出转换为活塞的往复运动。 驱动机构包括由电动机旋转驱动的曲柄轴，偏心安装在曲轴上的驱动销以及连接到驱动销的第一端的连杆和连接到活塞的第二端。 活塞可滑动地安装在由活塞往复驱动的活塞的前方。 一个节拍片可滑动地安装在柱塞的前面。 跳动件被往复运动的冲头重复地撞击，往复运动的冲头在被保持在工具架中时反复地撞击工具的端部，以将冲头的动量传递到工具。 润滑液覆盖驱动机构的至少一部分。 后活塞室形成在气缸的端部内，活塞的后部，当活塞在气缸内移动时，该活塞的体积重复地改变，使得壳体内的空气至少被吸入和吹出 后活塞室。 空气的运动导致润滑流体在壳体内移动。 限定在曲柄轴和驱动销中的至少一个中的纵向通道使得空气和润滑流体能够通过以帮助润滑流体在壳体内移动。
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公开(公告)号：US09180586B2
公开(公告)日：2015-11-10
申请号：US13489591
申请日：2012-06-06
申请人： Uwe Nemetz , Andreas Friedrich , Frantisek Harcar
发明人： Uwe Nemetz , Andreas Friedrich , Frantisek Harcar
CPC分类号： B25D17/043 , B25F5/006 , B25F5/026
摘要： A handle assembly for a power tool is disclosed. The handle assembly includes a base adapted to be mounted to a body of a power tool, and a handle having first and second mounting portions pivotably mounted to respective ends of the base. An elongate torsion spring has a first part mounted to the base and a respective second part mounted to each mounting portion such that pivoting of the handle relative to the base member causes twisting of the torsion member to resiliently oppose pivoting of the handle relative to the base portion.
摘要翻译： 公开了一种用于电动工具的手柄组件。 手柄组件包括适于安装到电动工具的主体的底座，以及具有可枢转地安装到基座的相应端部的第一和第二安装部分的手柄。 细长的扭转弹簧具有安装到基部的第一部分和安装到每个安装部分上的相应的第二部分，使得手柄相对于基部部件的枢转导致扭转部件扭转以弹性地相对于手柄相对于基部的枢转 一部分。
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公开(公告)号：US09168649B2
公开(公告)日：2015-10-27
申请号：US13555489
申请日：2012-07-23
CPC分类号： B25D17/043 , B25D2222/54 , B25D2250/371
摘要： A hammer-drill including a body in which is mounted a motor and a hammer mechanism which is driven by the motor; a tool holder mounted on the front of the body and which is capable of holding a cutting tool, the hammer mechanism being capable of imparting impacts to the cutting tool, when held by the tool holder; a rear handle, moveably mounted onto the rear of the body via at least one movement control mechanism and which is capable of moving towards or away from the body; a biasing mechanism which biases the rear handle away from the body.
摘要翻译： 一种锤钻，包括其中安装有马达的主体和由马达驱动的马达机构; 安装在所述主体的前部并且能够保持切割工具的工具保持架，所述锤机构当由所述工具架保持时能够对所述切削工具施加冲击; 后手柄，通过至少一个移动控制机构可移动地安装到身体的后部，并且能够朝向或远离身体移动; 偏置机构，其将后把手偏离身体。
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公开(公告)号：US20130025897A1
公开(公告)日：2013-01-31
申请号：US13555489
申请日：2012-07-23
IPC分类号： B25D17/24
CPC分类号： B25D17/043 , B25D2222/54 , B25D2250/371
摘要： A hammer-drill including a body in which is mounted a motor and a hammer mechanism which is driven by the motor; a tool holder mounted on the front of the body and which is capable of holding a cutting tool, the hammer mechanism being capable of imparting impacts to the cutting tool, when held by the tool holder; a rear handle, moveably mounted onto the rear of the body via at least one movement control mechanism and which is capable of moving towards or away from the body; a biasing mechanism which biases the rear handle away from the body.
摘要翻译： 一种锤钻，包括其中安装有马达的主体和由马达驱动的马达机构; 安装在所述主体的前部并且能够保持切割工具的工具保持架，所述锤机构当由所述工具架保持时能够对所述切削工具施加冲击; 后手柄，通过至少一个移动控制机构可移动地安装到身体的后部，并且能够朝向或远离身体移动; 偏置机构，其将后把手偏离身体。
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公开(公告)号：US20100012339A1
公开(公告)日：2010-01-21
申请号：US12520721
申请日：2007-02-28
申请人： Norbert Hahn , Andreas Friedrich
发明人： Norbert Hahn , Andreas Friedrich
CPC分类号： B25D17/043 , B25F5/006
摘要： A power tool, particularly a hammer drill, comprising; a body (4); a drive mechanism located within the body; at least one handle (10) moveably mounted on the body (4) by at least one connection point (18, 32; 16, 34); a vibration dampening mechanism connected between the body (4) and the handle (10) which reduces the amount of vibration, generated by the operation of the drive mechanism, being transferred from the body (4) to the handle (10); wherein the vibration dampening mechanism comprises a dampener (56); characterised in that the vibration dampening mechanism further comprises a restraining mechanism (52; 54) which restricts the direction of the movement of the handle (10) at the connection point (18, 32; 16, 34) where it mounts to the body to substantially the direction of the dominant vibration experienced by that connection point (18, 32; 16, 34). The restraining mechanism can comprise a pivotal lever or slide. The handle can be connected at two connection points, the movement of each one being restricted to that of the dominant vibration experienced at each connection.
摘要翻译： 电动工具，特别是锤钻，包括： 身体（4）; 位于身体内的驱动机构; 至少一个手柄（10）通过至少一个连接点（18,32; 16,34）可移动地安装在所述本体（4）上; 连接在主体（4）和手柄（10）之间的减振机构，其减少由驱动机构的操作产生的振动量，从主体（4）传递到手柄（10）; 其中所述减振机构包括阻尼器（56）; 其特征在于，所述减振机构还包括限制机构（52; 54），所述约束机构限制所述手柄（10）在其安装到所述主体的所述连接点（18,32; 16,34）处的运动方向， 基本上是由该连接点（18,32; 16,34）经历的主要振动的方向。 约束机构可以包括枢转杆或滑块。 手柄可以在两个连接点连接，每个连接点的运动被限制在每个连接处经历的主要振动的运动。
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