公开(公告)号：US07322427B2

公开(公告)日：2008-01-29

申请号：US11147384

申请日：2005-06-08

Applicant: Yasutoshi Shimma ,  Yoshihiro Kasuya ,  Masanori Furusawa

Inventor： Yasutoshi Shimma ,  Yoshihiro Kasuya ,  Masanori Furusawa

IPC: H01H9/20

CPC classification number: B25D16/006 ,  B25D2211/003 ,  B25D2211/068 ,  B25D2216/0015 ,  B25D2216/0023 ,  B25D2250/261 ,  H01H9/06 ,  H01H9/26

Abstract: It is an object of the present invention to provide an effective technique to improve ease of operation of the power impact tool. The power tool of the present invention includes a tool body, a tool bit, a motor, first and second switches and a mode changing mechanism. The motor is driven only when both switches are in an on position. The first switch is biased in the off position. The second switch is biased in the last position operated. The mode changing mechanism switches between hammer operation modes such that in the first hammer mode, the user actuates the first switch while the second switch is locked in the on position and in the second hammer mode, the first switch is locked in the on position while the second switch is actuated. In the second hammer mode, actuating the second switch similar to a toggle switch operates the tool.

Abstract translation: 本发明的目的是提供一种有效的技术来改善动力冲击工具的易操作性。 本发明的电动工具包括工具主体，工具头，电动机，第一和第二开关以及模式改变机构。 只有当两个开关处于接通位置时才会驱动电机。 第一个开关被偏置在关闭位置。 第二个开关偏置在最后一个位置。 模式改变机构在锤操作模式之间切换，使得在第一锤击模式中，用户致动第一开关，而第二开关锁定在接通位置，并且在第二锤模式中，第一开关锁定在接通位置，同时 第二开关被致动。 在第二锤击模式中，类似于拨动开关来致动第二开关操作该工具。

公开(公告)号：US20080006425A1

公开(公告)日：2008-01-10

申请号：US11823395

申请日：2007-06-27

Applicant: Ulrich Berghauser ,  Thomas Stanke

Inventor： Ulrich Berghauser ,  Thomas Stanke

IPC: B25D17/26

CPC classification number: B25D17/24 ,  B25D17/26 ,  B25D2211/003 ,  B25D2217/0092

Abstract: A vibration reduction and lubricating mechanism for a powered hammer includes a power driven piston in a cylinder that reciprocatingly drives a ram, which repetitively strikes a beat piece, which repetitively strikes a tool received in a tool holder. The vibration reduction and lubricating mechanism includes a first chamber defined in a housing of the powered hammer. A second chamber is defined within an end portion of the cylinder facing the beat piece, forward of the ram. A passageway is in communication with the first and second chambers. A counter mass is mounted for oscillating movement within the first chamber. When the hammer is operated, the counter mass is caused to oscillate to counteract vibration in the housing and to cause lubrication fluid to move between the first and second chambers.

公开(公告)号：US20070175647A1

公开(公告)日：2007-08-02

申请号：US11698926

申请日：2007-01-29

Applicant: Yonosuke Aoki

Inventor： Yonosuke Aoki

IPC: B23B45/16

CPC classification number: B25D17/24 ,  B25D16/00 ,  B25D17/06 ,  B25D17/245 ,  B25D2211/003 ,  B25D2211/068 ,  B25D2216/0023 ,  B25D2217/0019 ,  B25D2217/0084 ,  B25D2217/0092 ,  B25D2250/035 ,  B25D2250/245 ,  B25D2250/371 ,  B25D2250/391

Abstract: An object of the invention is to provide an improved technique for lessening an imp force caused by rebound of a tool bit after its striking movement in an impact power tool. representative impact power tool comprises a tool body, a hammer actuating member, a holder, a driving mechanism, a weight placed in contact with the hammer actuating member move rearward by a reaction force transmitted from the hammer actuating member when hammer actuating member performs a hammering operation on the workpiece and an ela element elastically deformed when the weight moves rearward in the tool body to push the ela element such that the elastic element absorbs the reaction force transmitted to the weight. weight is defined one or both of the cylinder and the tool holder.

Abstract translation: 本发明的一个目的是提供一种改进的技术，用于在冲击动力工具中的冲击运动之后减小由于工具钻头的回弹引起的冲击力。 代表性的冲击动力工具包括工具主体，锤子致动构件，保持器，驱动机构，与锤击致动构件相接触的重物在锤击致动构件执行锤击时由从锤致动构件传递的反作用力向后移动 操作在工件上，并且当重量在工具主体中向后移动以推动ela元件时弹性变形的ela元件使得弹性元件吸收传递到重物的反作用力。 重量限定了气缸和工具架中的一个或两个。

公开(公告)号：US20060011361A1

公开(公告)日：2006-01-19

申请号：US11147384

申请日：2005-06-08

Applicant: Yasutoshi Shimma ,  Yoshihiro Kasuya ,  Masanori Furusawa

Inventor： Yasutoshi Shimma ,  Yoshihiro Kasuya ,  Masanori Furusawa

IPC: B25D9/00

CPC classification number: B25D16/006 ,  B25D2211/003 ,  B25D2211/068 ,  B25D2216/0015 ,  B25D2216/0023 ,  B25D2250/261 ,  H01H9/06 ,  H01H9/26

Abstract: Accordingly, it is an object of the present invention to provide an effective technique to improve ease of operation of the power impact tool. The representative power impact tool according to the present invention includes a tool body, a tool bit, a motor, first and second switches and a mode changing mechanism. The tool bit performs a striking movement. The motor is driven only when both of the switches are turned on. The first switch is urged from the on position side to the off position side and normally held in the off position. The second switch is turned between the on position and the off position and held in one of the on and off positions unless operated to be turned to the opposite position. The mode changing mechanism switches between hammer operation modes of the tool bit. According to the first hammer mode, the user is allowed to actuate the first switch while the second switch is locked in the on position. Further, according to the second hammer mode, the first switch is locked in the on position while the user is allowed to actuate the second switch. According to the invention, when the power impact tool is operated in the second hammer mode, the first switch is locked in the on-position while the user is allowed to actuate the second switch such like a toggle switch to drive the motor. Therefore, the user is not required to keep the first switch in the on-position by hand in the second hammer mode. As a result, ease of operation of the power impact tool is enhanced compared with the known art.

Abstract translation: 因此，本发明的目的是提供一种有效的技术来改善动力冲击工具的易操作性。 根据本发明的代表性动力冲击工具包括工具主体，工具钻头，马达，第一和第二开关以及模式改变机构。 工具位执行醒目的运动。 只有当两个开关都打开时，电机才被驱动。 第一开关从位置侧被推压到关闭位置侧并且通常保持在关闭位置。 第二开关在打开位置和关闭位置之间转动并且保持在打开和关闭位置中的一个位置，除非操作以转动到相对位置。 模式切换机构切换工具钻头的锤击操作模式。 根据第一锤击模式，允许用户致动第一开关，同时第二开关锁定在接通位置。 此外，根据第二锤击模式，第一开关被锁定在接通位置，同时允许使用者致动第二开关。 根据本发明，当动力冲击工具以第二锤模式操作时，第一开关被锁定在就位，同时使用者能够像拨动开关一样致动第二开关来驱动马达。 因此，用户不需要以第二锤模式手动将第一开关保持在就位。 结果，与现有技术相比，动力冲击工具的易操作性得到提高。

公开(公告)号：US06938705B2

公开(公告)日：2005-09-06

申请号：US11013349

申请日：2004-12-17

Applicant: Atsuyuki Kikuchi

Inventor： Atsuyuki Kikuchi

IPC: B25D9/00 ,  B25D11/00 ,  B25D11/06 ,  B25D11/12 ,  B25D16/00 ,  B25D17/00 ,  B25D17/06

CPC classification number: B25D11/005 ,  B25D11/125 ,  B25D17/06 ,  B25D2211/003

Abstract: A projected portion provided at a cylinder and projected in a radius direction is formed at an end face thereof on a side of a tool holding portion, and a holding portion on one side of holding portions for holding an outer periphery of the cylinder by at least two portions remote from each other in an axial direction to position in the radius direction of the cylinder is configured by a guide face having an inner diameter of a dimension substantially the same as an outer diameter of the projected portion and extended over to a contact face brought into contact with the projected portion from an end face of a cylinder case on a side of the tool holding portion.

Abstract translation: 在工具保持部的一侧的端面形成有设置在圆筒上并且在半径方向上突出的突出部，并且在保持部的一侧的保持部至少保持筒的外周的保持部至少 在轴向方向上彼此远离的两个部分位于气缸的半径方向上的两个部分由具有与突出部分的外径基本上相同的尺寸的内径的引导面构成并延伸到接触面 与工具保持部一侧的气缸体的端面与突出部接触。

公开(公告)号：US06913088B2

公开(公告)日：2005-07-05

申请号：US10485673

申请日：2002-09-12

Applicant: Rudolf Berger

Inventor： Rudolf Berger

IPC: B23B45/16 ,  B25D11/00 ,  B25D16/00 ,  B25D17/04 ,  B25F5/00 ,  E02D7/02

CPC classification number: B25D11/005 ,  B25D16/00 ,  B25D17/043 ,  B25D2211/003 ,  B25D2211/068 ,  B25D2250/035 ,  B25D2250/131 ,  B25D2250/221

Abstract: A percussion hammer drill and/or percussion hammer that can be guided by a handgrip comprises a pneumatic spring striking mechanism with a reciprocating drive piston and with a percussion piston that can be operated by the drive piston. A cavity for accommodating a pneumatic spring is provided between the drive piston and the percussion piston. The cavity can be connected to the surrounding area via a no-load operation channel in order to achieve a no-load operation. This this end, a valve is situated inside the no-load operation channel and can be controlled according to an application force that can be applied to the handgrip by the operator.

Abstract translation: 可由手柄引导的冲击锤钻和/或冲击锤包括具有往复驱动活塞的气动弹簧冲击机构和可由驱动活塞操作的冲击活塞。 用于容纳气动弹簧的空腔设置在驱动活塞和冲击活塞之间。 空腔可以通过空载操作通道连接到周围区域，以实现空载操作。 这样一来，阀门位于空载操作通道的内部，可以根据操作人员可以施加到手柄的施加力进行控制。

公开(公告)号：US06907943B2

公开(公告)日：2005-06-21

申请号：US10759347

申请日：2004-01-15

Applicant: Hiroki Ikuta

Inventor： Hiroki Ikuta

IPC: B23B45/16 ,  B25D11/12 ,  B25D17/24 ,  B25D11/00

CPC classification number: B25D11/125 ,  B25D17/24 ,  B25D2211/003 ,  B25D2217/0088 ,  B25D2217/0092 ,  B25D2250/331 ,  B25D2250/335

Abstract: It is, accordingly, an object of the present invention to provide an electric hammer with improved construction, while ensuring the vibration reduction performance. According to the present invention, a representative electric hammer may include a hammer bit, a driving motor, a crank mechanism and a counter weight. The crank mechanism drives a striker by converting a rotating output of the driving motor to linear motion in the axial direction of the hammer bit. The counter weight is detachably mounted to the crank mechanism and serves to reduce vibration of the striker. According to the representative hammer, because the counter weight is detachably mounted to the crank mechanism, it is possible to switch between the mode in which the counter weight is mounted on the hammer body in order to reduce and alleviate vibration and the mode in which the counter weight is removed from the hammer so that the operation can be performed with the hammer having a lighter weight and slimmer appearance. Thus, utility of the electric hammer can be improved.

Abstract translation: 因此，本发明的目的是提供一种具有改进结构的电锤，同时确保减振性能。 根据本发明，代表性的电锤可以包括锤钻头，驱动马达，曲柄机构和配重。 曲柄机构通过将驱动电动机的旋转输出转换成锤头的轴向的线性运动来驱动撞针。 配重可拆卸地安装在曲柄机构上，用于减轻撞针的振动。 根据代表性的锤子，由于平衡重可拆卸地安装在曲柄机构上，因此为了减轻和减轻振动，可以在安装在锤体上的配重的模式之间进行切换， 从锤子中取出配重，使锤子的重量更轻，外观更细，可进行操作。 因此，可以提高电锤的效用。

公开(公告)号：US20040194987A1

公开(公告)日：2004-10-07

申请号：US10827553

申请日：2004-04-19

Inventor： Andreas Hanke ,  Achim Buchholz ,  Ralf Bernhart

IPC: B25D009/00

CPC classification number: B25D17/24 ,  B25D11/062 ,  B25D11/125 ,  B25D17/06 ,  B25D17/088 ,  B25D17/20 ,  B25D2211/003 ,  B25D2217/0065 ,  B25D2250/191 ,  B25D2250/365

Abstract: An electrically powered hammer comprising a hollow spindle within which spindle is reciprocatingly mounted a piston, a ram, a beatpiece having an increased external diameter mid-portion and located within the spindle between the ram and the tool or bit, a two part sleeve arrangement located within the spindle and including an increased internal diameter mid-portion for receiving the increased external diameter portion of the beatpiece and a reduced internal diameter forward and rearward portion for guiding the forward and rearward ends respectively of the beatpiece and where the sleeve arrangement includes a forward sleeve and a rearward sleeve which are both guided with tight radial tolerances and with a slight axial play within and by the spindle and the forward axial movement of the forward sleeve is limited by a reduced diameter portion of the spindle and the forward axial movement of the rearward sleeve is limited by the forward sleeve.

Abstract translation: 一种电动锤，包括中空心轴，主轴在其中往复运动地安装有活塞，冲头，具有增加的外径中间部分并且位于所述心轴内的位于所述压头和所述工具或钻头之间的制动器，位于 并且包括增加的内径中间部分，用于接收所述提升的外径部分的增加部分，以及减小的内径前后部分，用于分别引导所述拍子的前端和后端，并且所述套筒装置包括向前 套筒和后套筒都被紧密的径向公差引导，并且在主轴内部和由主轴进行轻微的轴向游动，并且前套筒的向前轴向运动受到主轴的减小直径部分的限制，并且主轴的向前轴向运动 后套筒由前套筒限制。

公开(公告)号：US20040182589A1

公开(公告)日：2004-09-23

申请号：US10739863

申请日：2003-12-18

Inventor： Holger Cecchin ,  Christian Daubner ,  Hubert Daxenberger ,  David Hruza ,  Christoph Kink ,  Ferdinand Kristen ,  Erwin Manschitz ,  Hans-Juergen Pfisterer ,  Walter Wissmach

IPC: E21B003/00

CPC classification number: B25D11/125 ,  B25D2211/003

Abstract: An electrical hand-held tool includes an electric motor (2) having a rotor shaft (3) extending transverse to the tool percussion axis (A), a rotor sheet stack (4) supported on the rotor shaft, and a pinion (5) supported on the rotor shaft, a percussion mechanism (6) including an eccentric (7), and a drive gear (8) engageable with the motor pinion (5) for driving the eccentric (7), with the rotor sheet stack (4) being arranged, with respect to the percussion axis A, completely diametrically opposite the drive gear (8).

Abstract translation: 一种电动手持式工具包括具有横向于工具冲击轴线（A）延伸的转子轴（3）的电动机（2），支撑在转子轴上的转子薄片堆叠（4）和小齿轮（5） 支撑在转子轴上，包括偏心轮（7）的冲击机构（6）和与马达小齿轮（5）啮合的用于驱动偏心轮（7）的驱动齿轮（8）与转子片叠（4） 相对于打击轴线A完全沿径向相对于驱动齿轮（8）布置。

公开(公告)号：US06732815B2

公开(公告)日：2004-05-11

申请号：US10092754

申请日：2002-03-07

Applicant: Andreas Hanke ,  Achim Buchholz ,  Ralf Bernhart

Inventor： Andreas Hanke ,  Achim Buchholz ,  Ralf Bernhart

IPC: B25D1700

CPC classification number: B25D17/24 ,  B25D11/062 ,  B25D11/125 ,  B25D17/06 ,  B25D17/088 ,  B25D17/20 ,  B25D2211/003 ,  B25D2217/0065 ,  B25D2250/191 ,  B25D2250/365

Abstract: An electrically powered hammer comprising a hollow spindle within which spindle is reciprocatingly mounted a piston, a ram, a beatpiece having an increased external diameter mid-portion and located within the spindle between the ram and the tool or bit, a two part sleeve arrangement located within the spindle and including an increased internal diameter mid-portion for receiving the increased external diameter portion of the beatpiece and a reduced internal diameter forward and rearward portion for guiding the forward and rearward ends respectively of the beatpiece and where the sleeve arrangement includes a forward sleeve and a rearward sleeve which are both guided with tight radial tolerances and with a slight axial play within and by the spindle and the forward axial movement of the forward sleeve is limited by a reduced diameter portion of the spindle and the forward axial movement of the rearward sleeve is limited by the forward sleeve.