公开(公告)号：US5090606A

公开(公告)日：1992-02-25

申请号：US603659

申请日：1990-10-26

申请人： Takuji Torii ,  Hiromu Utsumi ,  Shinki Ohtsu ,  Yo Kawakami ,  Teruo Suzuki ,  Yoshimitsu Kawasaki ,  Toshifumi Kubota ,  Yoshinori Ishizawa ,  Tsunehisa Terayama

发明人： Takuji Torii ,  Hiromu Utsumi ,  Shinki Ohtsu ,  Yo Kawakami ,  Teruo Suzuki ,  Yoshimitsu Kawasaki ,  Toshifumi Kubota ,  Yoshinori Ishizawa ,  Tsunehisa Terayama

IPC分类号： B25C1/08

CPC分类号： B25C1/08

摘要： A combustion gas powered fastener driving tool includes inlet and outlet openings through which the combustion gases are discharged from a combustion chamber. These openings are located above the uppermost driving position (top dead center) of a slidable piston, so that an air and fuel mixture is fully trapped in the combustion chamber until after it is combusted. Since an outflow of the unburnt air and fuel mixture is completely prevented, the rate of fuel consumption of the fastener driving tool is high and there is no danger of accidental explosion of unburned fuel even when the fastener driving tool is used in a badly ventilated working place or site. An electric fan for forcing fresh air into the combustion chamber is disposed outside the cylinder and isolated from high temperatures. The fan is durable in structure and reliable in operation.

公开(公告)号：US5199626A

公开(公告)日：1993-04-06

申请号：US888307

申请日：1992-05-27

申请人： Tsunehisa Terayama ,  Takuji Torii ,  Shinki Ohtsu ,  Hiromu Utsumi ,  Teruo Suzuki ,  Toshifumi Kubota ,  Yo Kawakami ,  Yasuyuki Hirano ,  Akira Uno

发明人： Tsunehisa Terayama ,  Takuji Torii ,  Shinki Ohtsu ,  Hiromu Utsumi ,  Teruo Suzuki ,  Toshifumi Kubota ,  Yo Kawakami ,  Yasuyuki Hirano ,  Akira Uno

IPC分类号： B25C1/08

CPC分类号： B25C1/08

摘要： A combustion gas powered tool includes a member defining a part of cylindrical combustion chamber having an axis. A piston is movable in a direction along the axis of the combustion chamber. The piston defines the combustion chamber in conjunction with the member. A mixture of air and fuel is generated in the combustion chamber. The air-fuel mixture in the combustion chamber is burned to drive the piston. An orifice grille extends in the combustion chamber, and is parallel to the axis of the combustion chamber.

摘要翻译： 燃烧气体动力工具包括限定具有轴线的圆柱形燃烧室的一部分的构件。 活塞可以沿着燃烧室的轴线的方向移动。 活塞与该构件一起限定燃烧室。 在燃烧室中产生空气和燃料的混合物。 燃烧室中的空气 - 燃料混合物被燃烧以驱动活塞。 孔格栅在燃烧室中延伸，并且平行于燃烧室的轴线。

公开(公告)号：US4913331A

公开(公告)日：1990-04-03

申请号：US261074

申请日：1988-10-21

申请人： Hiromu Utsumi ,  Yo Kawakami ,  Shinki Ohtsu

发明人： Hiromu Utsumi ,  Yo Kawakami ,  Shinki Ohtsu

IPC分类号： B25C1/08 ,  F02B71/04

CPC分类号： B25C1/08 ,  F02B71/04

摘要： In an internal-combustion piston driving apparatus comprising a housing, a cylinder cover fixed to the housing, a cylinder slidably provided to the housing, a piston reciprocally slidably provided in the cylinder, a combustion chamber defined by the housing, the cylinder, and the piston, a fuel supplying device for supplying fuel to the combustion chamber, and an ignition control device for producing a high voltage to ignite the fuel supplied to the combustion chamber, piston position detector for detecting a position of the piston is provided at the wall of the cylinder between top dead point and bottom dead point of the piston. Besides, a decompression channel is provided so as to connect the combustion chamber placed upper than the top dead point with atmosphere for exhausting a combusted gas in the combustion chamber when the piston passes the piston position detector. The decompression channel is opened and closed by means of slide of the cylinder. In addition, a suction valve is provided to the cylinder cover to be placed lower than bottom dead point of the piston whereby the piston is returned by means of atmospheric pressure after a power stroke of said piston.

摘要翻译： 在一种内燃活塞驱动装置中，包括壳体，固定到壳体的气缸盖，可滑动地设置在壳体上的气缸，可往复滑动地设置在气缸中的活塞，由壳体，气缸和 活塞，用于向燃烧室供给燃料的燃料供给装置和用于产生高电压以点燃供应到燃烧室的燃料的点火控制装置，设置在用于检测活塞位置的活塞位置检测器， 气缸在活塞的上死点和下死点之间。 此外，当活塞通过活塞位置检测器时，设置减压通道，以将设置在上死点以上的燃烧室与燃烧室中的燃烧气体排出的气体连接。 减压通道通过气缸的滑动而打开和关闭。 此外，吸气阀设置在气缸盖上，以被放置在比活塞的下死点低的位置，在活塞的动力冲程之后活塞通过大气压返回。

公开(公告)号：US4773581A

公开(公告)日：1988-09-27

申请号：US41379

申请日：1987-04-23

申请人： Shinki Ohtsu ,  Yo Kawakami ,  Hiromu Utsumi

发明人： Shinki Ohtsu ,  Yo Kawakami ,  Hiromu Utsumi

IPC分类号： B25C1/08

CPC分类号： B25C1/08

摘要： A housing partially defines a combustion chamber. A movable piston partially defines the combustion chamber. An air and fuel mixture is generated in the combustion chamber. The air and fuel mixture is ignited in the combustion chamber. An obstacle member is fixedly disposed in the combustion chamber. The obstacle member serves to generate turbulence in an unburned portion of the air and fuel mixture after the air and fuel mixture is ignited. Fuel may be injected into at least two points in the combustion chamber.

摘要翻译： 壳体部分地限定燃烧室。 可动活塞部分地限定燃烧室。 在燃烧室中产生空气和燃料混合物。 空气和燃料混合物在燃烧室中点燃。 障碍构件固定地设置在燃烧室中。 障碍构件用于在空气和燃料混合物点燃之后在空气和燃料混合物的未燃烧部分产生湍流。 燃料可以被注入燃烧室中的至少两个点。

公开(公告)号：US20110214894A1

公开(公告)日：2011-09-08

申请号：US12991415

申请日：2009-05-08

申请人： Tetsuhiro Harada ,  Tomomasa NIshikawa ,  Kazutaka Iwata ,  Shinki Ohtsu ,  Nobuhiro Takano

发明人： Tetsuhiro Harada ,  Tomomasa NIshikawa ,  Kazutaka Iwata ,  Shinki Ohtsu ,  Nobuhiro Takano

IPC分类号： B25F5/00 ,  B25B21/02

CPC分类号： B25B21/02

摘要： According to an aspect of the invention, an oil pulse tool includes: a motor generating a driving force according to a driving voltage; an oil pulse unit driven by the driving force and generating a torque in a pulse-like shape when the motor passes a strike position on a shaft thereof; and an output shaft on which a front end tool is mounted, the output shaft being connected to the shaft, characterized in that the oil pulse tool further comprises driving adjusting means to control the driving voltage, the driving voltage is reduced during a given period including a timing when the torque is transmitted to the output shaft, and the reduced driving voltage is increased when the given period is finished.

摘要翻译： 根据本发明的一个方面，油压脉冲工具包括：电动机，根据驱动电压产生驱动力; 由驱动力驱动的油压脉冲单元，当马达通过其轴上的击打位置时产生脉冲状的扭矩; 以及输出轴，其上安装有前端工具，所述输出轴连接到所述轴，其特征在于，所述油压脉冲工具还包括用于控制驱动电压的驱动调节装置，在给定时段期间驱动电压降低，包括 当扭矩传递到输出轴的时刻，并且当给定的时间段结束时，降低的驱动电压增加。

公开(公告)号：US07789281B2

公开(公告)日：2010-09-07

申请号：US12088469

申请日：2006-09-05

申请人： Hideyuki Tanimoto ,  Chikai Yoshimizu ,  Hiroyuki Oda ,  Toshihito Sakaba ,  Shinki Ohtsu ,  Takashi Ueda ,  Yoshihiro Nakano

发明人： Hideyuki Tanimoto ,  Chikai Yoshimizu ,  Hiroyuki Oda ,  Toshihito Sakaba ,  Shinki Ohtsu ,  Takashi Ueda ,  Yoshihiro Nakano

IPC分类号： B25C5/15 ,  B25F5/00

CPC分类号： F16D27/105

摘要： An electric fastener driver having a compact size and simple construction. A driver segment provided with a rack is movably disposed in a housing. A flywheel is driven by a motor. A drive shaft is concentric with and integral with the flywheel. A coil spring is fixed to the drive shaft. A driven rotor is coaxial with the drive shaft and has one end portion serving as a spring seat portion positioned within the coil spring. A pinion is disposed at the driven rotor and is meshedly engaged with the rack. An urging section is disposed within the driven rotor. A ball is movably disposed in a through-hole formed in the driven rotor for urging an end portion of the coil spring by the urging section. A solenoid controls a protruding amount of the ball from the surface of the driven rotor.

摘要翻译： 电动紧固件驱动器，结构紧凑，结构简单。 设置有机架的驱动器段可移动地设置在壳体中。 飞轮由电机驱动。 驱动轴与飞轮同心并与其成一体。 螺旋弹簧固定在驱动轴上。 从动转子与驱动轴同轴，并且具有用作位于螺旋弹簧内的弹簧座部分的一个端部。 小齿轮设置在从动转子处并与齿条啮合。 推动部分设置在从动转子内。 一个球可移动地设置在形成在从动转子中的通孔中，用于通过推动部分推动螺旋弹簧的端部。 螺线管控制来自被驱动转子表面的球的突出量。

公开(公告)号：US07323796B2

公开(公告)日：2008-01-29

申请号：US10634814

申请日：2003-08-06

申请人： Katsuhiro Oomori ,  Chikai Yoshimizu ,  Masanori Watanabe ,  Toshiyuki Nemoto ,  Shinki Ohtsu ,  Takuma Saito

发明人： Katsuhiro Oomori ,  Chikai Yoshimizu ,  Masanori Watanabe ,  Toshiyuki Nemoto ,  Shinki Ohtsu ,  Takuma Saito

IPC分类号： H20K7/14

CPC分类号： B25F5/008 ,  H02K5/10 ,  H02K5/20 ,  H02K9/06 ,  H02K9/22 ,  H02K9/28 ,  H02K11/33 ,  Y10T408/65

摘要： In a motor-driven tool, a carbon brush part 8 is arranged between a suction port 6 and a commutator 11 of the motor and includes a cylindrical side wall 8a. The cylindrical side wall 8a located on an outer periphery of the commutator 11 is provided with a tapered portion 8b which grows wider toward the commutator 11 and grows narrower toward a coil end 10 of the armature. Between the carbon brush part 8 and the coil end 10, there is provided a heat radiating plate 4 made of metal and adapted to be engaged with the carbon brush part 8.

摘要翻译： 在马达驱动的工具中，碳刷部件8布置在电动机的吸入口6和换向器11之间，并且包括圆柱形侧壁8a。 位于换向器11的外周上的圆筒形侧壁8a设置有朝向换向器11变宽的锥形部分8b，并朝着衔铁的线圈端部10变窄。 在碳刷部件8和线圈端部10之间设置有由金属制成并适于与碳刷部件8接合的散热板4。

公开(公告)号：US07216723B2

公开(公告)日：2007-05-15

申请号：US11319173

申请日：2005-12-28

申请人： Shinki Ohtsu ,  Chikai Yoshimizu

发明人： Shinki Ohtsu ,  Chikai Yoshimizu

IPC分类号： B25B21/02

CPC分类号： F16D37/02 ,  B25B21/02 ,  F16D5/00 ,  F16D2037/002 ,  F16D2037/007

摘要： A pulse torque generator utilizing a magnetic coupling, and an electric power tool provided with the pulse torque generator. The pulse torque generator includes an input shaft extending in its axial direction and having a hollow section providing a hollow space, and an output shaft rotatably provided in the hollow space. A magnetic fluid is encapsulated in a hollow space between the input shaft and output shaft. A magnetic field generating unit is disposed, and magnetic segments are provided in the input shaft. A magnetic fluid provides a magnetic fluid bridge bridging between the input shaft and the output shaft each time the magnetic segment is brought into confrontation with the magnetic field generating unit.

摘要翻译： 利用磁耦合的脉冲扭矩发生器和设置有脉冲扭矩发生器的电动工具。 脉冲扭矩发生器包括沿其轴向延伸并具有提供中空空间的中空部分的输入轴和可旋转地设置在中空空间中的输出轴。 磁性流体被封装在输入轴和输出轴之间的中空空间中。 设置磁场产生单元，并且在输入轴中设置磁段。 每当磁段与磁场发生单元对抗时，磁性流体在输入轴和输出轴之间提供桥接的磁性流体桥。

公开(公告)号：US20070034661A1

公开(公告)日：2007-02-15

申请号：US11542155

申请日：2006-10-04

申请人： Yoshitaka Akiba ,  Tomomasa Nishikawa ,  Kunio Yamamoto ,  Shinki Ohtsu ,  Haruhisa Fujisawa

发明人： Yoshitaka Akiba ,  Tomomasa Nishikawa ,  Kunio Yamamoto ,  Shinki Ohtsu ,  Haruhisa Fujisawa

IPC分类号： B25C1/14

CPC分类号： B25C1/08

摘要： A combustion-type power tool includes a housing, a cylinder head disposed at one end of the housing, a cylinder in the housing, a piston slidably disposed in the cylinder, and a driver blade connected to the piston. A combustion-chamber is provided in the housing, a fan is disposed in the combustion chamber, and a motor having an output shaft is coupled to the fan. A motor holder accommodates the motor, and the cylinder head is formed with a motor holder receiving portion in which the motor holder is slidably movably disposed. An elastic member is disposed in a gap formed between the motor holder and the motor holder receiving portion.

摘要翻译： 燃烧式电动工具包括壳体，设置在壳体的一端的气缸盖，壳体中的气缸，可滑动地设置在气缸中的活塞以及连接到活塞的驱动器叶片。 燃烧室设置在壳体中，风扇设置在燃烧室中，具有输出轴的电动机联接到风扇。 电动机保持器容纳电动机，气缸盖形成有电动机保持器容纳部，电动机保持器可滑动地移动。 弹性构件设置在形成在电动机支架和电动机支架接收部之间的间隙中。

公开(公告)号：US20070007024A1

公开(公告)日：2007-01-11

申请号：US11480974

申请日：2006-07-06

申请人： Junichi Tokairin ,  Kenji Kataoka ,  Yukio Terunuma ,  Hideki Watanabe ,  Shigeru Ishikawa ,  Shinki Ohtsu

发明人： Junichi Tokairin ,  Kenji Kataoka ,  Yukio Terunuma ,  Hideki Watanabe ,  Shigeru Ishikawa ,  Shinki Ohtsu

IPC分类号： B25D16/00

CPC分类号： B25D11/106 ,  B25D16/006 ,  B25D17/24 ,  B25D2250/345 ,  B25D2250/371

摘要： A vibration drill unit capable of obtaining an intensive drilling force. The vibration drill unit includes a first ratchet, anon-rotatable second ratchet having a claw engageable with the claw of the first ratchet, and a main body frame for accommodating a motor, a spindle, the first ratchet and the second ratchet. The respective claws of the first ratchet and the second ratchet include the first inclined surfaces formed so as to be engaged in the rotation direction by rotations of the first ratchet and so as to be separated from each other, the second inclined surfaces 34a-2 and 35a-2 having greater inclination in the reversed direction than the first inclined surfaces, top parts that link the upper parts of both inclined surfaces to each other, and flat parts that link the bottom parts of both inclined surfaces to each other.

摘要翻译： 一种能够获得强力钻井力的振动钻机。 所述振动钻单元包括具有与所述第一棘轮的爪接合的爪的第一棘轮，可旋转的第二棘轮，以及用于容纳马达，主轴，所述第一棘轮和所述第二棘轮的主体框架。 第一棘轮和第二棘轮的各爪包括形成为通过第一棘轮的旋转沿旋转方向接合并且彼此分离的第一倾斜表面，第二倾斜表面34a-2 和35a-2在相反方向上比第一倾斜面具有更大的倾斜，将两个倾斜表面的上部彼此连接的顶部以及将两个倾斜表面的底部彼此连接的平坦部分。