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1. 发明专利

JP2010148484A Engine-driven bush cutter 审中-公开
标题翻译：发动机总线切割机
公开(公告)号：JP2010148484A
公开(公告)日：2010-07-08
申请号：JP2008332763
申请日：2008-12-26
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： KAMIMURA JUNICHI , OTSU SHINKI , SUNAOSHI MITSUHIRO , YASUTOMI TOSHINORI
IPC分类号： A01D34/68 , A01D34/76 , F16D3/12 , F16D3/68 , F16F15/12 , F16H55/14
摘要： PROBLEM TO BE SOLVED: To provide a bush cutter suppressing torsion of a shaft caused by variation of rotational speed and reducing gear noise in contrast with conventional engine-driven bush cutter generating non-uniform rotation caused by acceleration of an engine by combustion-induced torque and deceleration by sliding resistance between a cylinder and a piston ring and pumping loss, etc., in compression of a fuel with a piston.
SOLUTION: The problems comprising generation of twisting oscillation of the shaft and gear noise can be solved by placing a circumferentially movable and power-transmitting elastic member in the inner part of a gear enclosed in a gear case, thereby decreasing a torsional spring constant of a power transmission part.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：与传统的发动机驱动的衬套切割机相比，由于发动机的燃烧加速而产生不均匀的旋转，提供了一种抑制由于转速的变化引起的轴的扭转并减少齿轮噪声的铣刀由气缸和活塞环之间的滑动阻力引起的扭矩和减速以及在用活塞压缩燃料时的泵送损耗等。解决方案：包括产生轴的扭转振动和齿轮噪声的问题可以通过将周向可移动和动力传递的弹性构件放置在封闭在齿轮箱中的齿轮的内部中来解决，从而减少扭转弹簧传动部件的常数。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2008307219A Centrifugal machine 审中-公开
标题翻译：离心机
公开(公告)号：JP2008307219A
公开(公告)日：2008-12-25
申请号：JP2007157904
申请日：2007-06-14
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： SHIMIZU KATSUTAKA , AIZAWA MASAHARU , KUSUMOTO SHOJI , OTSU SHINKI , HAYASAKA HIROSHI
IPC分类号： A61M1/02 , B04B5/02 , B04B15/02
CPC分类号： B04B15/02 , B04B7/02
摘要： PROBLEM TO BE SOLVED: To provide a centrifugal machine having a rotor with a sufficient cooling performance in a relatively simple structure and capable of reducing noise due to rotation and an air flow. SOLUTION: This centrifugal machine is formed with independent air ducts respectively in a manner of being separated into an air duct for cooling the rotor 1 and an air duct for cooling an electric control part 16 and a motor 2. The air duct is disposed with a silencer formed of a shielding material, the air duct for cooling the rotor is disposed with a sound absorbing material, and the back face of the centrifugal machine is disposed with an outlet of the air duct for cooling the rotor. The back face of the centrifugal machine is further disposed with an outlet of the air duct for cooling the electric control part and the motor. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有转子的离心机，该转子在相对简单的结构中具有足够的冷却性能，并且能够降低由旋转和气流引起的噪音。解决方案：该离心机分别形成有分离成用于冷却转子1的空气管道和用于冷却电气控制部件16和电动机2的空气管道的独立空气管道。空气管道是设置有由屏蔽材料形成的消音器，用于冷却转子的空气管道设置有吸声材料，并且离心机的背面设置有用于冷却转子的空气管道的出口。离心机的背面进一步设置有风道的出口，用于冷却电气控制部分和电动机。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2007331073A Power tool 有权
标题翻译：电动工具
公开(公告)号：JP2007331073A
公开(公告)日：2007-12-27
申请号：JP2006166949
申请日：2006-06-16
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： SUZUURA TSUKASA , OTSU SHINKI
IPC分类号： B25D17/24
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive power tool which can effectively reduce the vibration generated by driving an impact member without growing in size and spoiling its workability. SOLUTION: A counterweight mechanism 70 is equipped with: two weight holding and supporting parts 71, 72; a weight holding part 73; and a counter weight 74. Each of the weight holding and supporting parts 71, 72 is disposed perpendicularly to the direction of reciprocating motion of piston 43 so as to pinch the counterweight 74, and is equipped with the first weight holding and supporting parts 75, 76 and the second weight holding and supporting parts 77, 78 which are located on the side of the counterweight 74 rather than the first weight holding and supporting parts 75, 76. Also, each of the first weight holding and supporting parts 75, 76 and the second weight holding and supporting parts 77, 78 is disposed so as to give an offset load F to the weight holding part 73 in the direction of its rear end. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种廉价的电动工具，其可以有效地减少通过驱动冲击构件产生的振动而不会增大尺寸并破坏其可加工性。解决方案：配重机构70配备有：两个重量保持和支撑部分71,72; 重物保持部73; 和配重74.每个重量保持和支撑部分71,72垂直于活塞43的往复运动方向设置，以便夹紧配重74，并且配备有第一重量保持和支撑部件75， 76和位于配重74侧的第二重量保持和支撑部分77,78，而不是第一重量保持和支撑部分75,76。而且，第一重量保持和支撑部件75,76和第二重量保持和支撑部分77,78设置成在其后端的方向上给予重量保持部分73的偏移载荷F。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2007050454A Impact tool 审中-公开
标题翻译： IMPACT工具
公开(公告)号：JP2007050454A
公开(公告)日：2007-03-01
申请号：JP2005235032
申请日：2005-08-12
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： MURAKAMI TAKAHIRO , KAMIMURA JUNICHI , OMORI KAZUHIRO , OTSU SHINKI , INAGAWA HIROTO , WATANABE HIDEKI
IPC分类号： B25B21/02
CPC分类号： B25D11/068 , B25B21/02 , B25D17/11 , B25D17/24
摘要： PROBLEM TO BE SOLVED: To provide an impact tool capable of achieving low noise operation without causing lowering of fastening capability.
SOLUTION: In the impact tool, a rotary impact mechanism is mounted on a spindle 7 driven by a motor 2, and a rotary impact force is applied to the tip end tool 4 by intermittently transmitting the rotary impact force generated by the rotary impact mechanism from a hammer 8 to the tip end tool 4 through an anvil 3. Buffer members 20, 23 absorbing the vibration in at least radial direction are provided on at least one side of both end support parts in the axial direction of the spindle 7. For example, a rubber ring 20 is interposed as a buffer material between a bearing 18 rotatably supporting a rear end part 7c of the spindle 7 and an inner cover 19, and an O-ring 23 is interposed as the buffer material between a front end part 7b of the spindle 7 and the anvil 3 rotatably supporting it.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供能够实现低噪声操作而不降低紧固能力的冲击工具。解决方案：在冲击工具中，旋转冲击机构安装在由电动机2驱动的主轴7上，并且通过间歇地传递由旋转体产生的旋转冲击力将旋转冲击力施加到尖端工具4 通过砧座3从锤8到末端工具4的冲击机构。在主轴7的轴向上的两个端部支撑部的至少一个侧面上设置有缓冲构件20,23，其在至少径向方向上吸收振动例如，将橡胶环20作为缓冲材料插入在可旋转地支撑主轴7的后端部7c的轴承18和内盖19之间，并且O形环23作为缓冲材料插入前方主轴7的端部7b和可旋转地支撑其的砧座3。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2007044845A Electrical power tool 有权
标题翻译：电动工具
公开(公告)号：JP2007044845A
公开(公告)日：2007-02-22
申请号：JP2005234075
申请日：2005-08-12
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： INAGAWA HIROTO , OTSU SHINKI
IPC分类号： B25F5/02 , B25F5/00
摘要： PROBLEM TO BE SOLVED: To provide an electrical power tool capable of inexpensively and rationally realizing low vibration and low noise. SOLUTION: A structural body 20 having a parallel surface in the axial direction of a motor 2 is interposed between a stator 2b of the motor 2 and a housing 3 on a disc grinder (electrical tool) 1 with the motor 2 as a driving source built-in in the housing 3. Hereby, a passage of motor cooling air is formed of the parallel surface of the structural body 20, an outer surface of the stator 2b and an inner surface of the housing 3. Additionally, the structural body 20 is constituted of an elastic body or the whole or a part of the structural body 20 is constituted of a viscoelastic body. Furthermore, the structural body 20 is constituted of a member having higher heat conductivity than that of the housing 3. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供能够廉价且合理地实现低振动和低噪声的电动工具。解决方案：将电动机2的轴向平行的结构体20介于电动机2的定子2b和盘式磨碎机（电动工具）1之间的壳体3上，其中电动机2为驱动源内置在壳体3中。因此，电动机冷却空气的通道由结构体20的平行表面，定子2b的外表面和壳体3的内表面形成。另外，结构主体20由弹性体构成，或者结构体20的整体或一部分由粘弹性体构成。此外，结构体20由具有比壳体3的导热性更高的导热性的构件构成。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006315093A Impact tool 审中-公开
标题翻译： IMPACT工具
公开(公告)号：JP2006315093A
公开(公告)日：2006-11-24
申请号：JP2005137183
申请日：2005-05-10
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： MURAKAMI TAKAHIRO , KAMIMURA JUNICHI , OMORI KAZUHIRO , OTSU SHINKI , INAGAWA HIROTO , WATANABE HIDEKI
IPC分类号： B25B21/02
CPC分类号： B25B21/02
摘要： PROBLEM TO BE SOLVED: To provide an impact tool, enabling a buffering mechanism to fulfill a stable buffering function even if a buffering material from being plastically deformed due to a change with passage of time, and reducing noise without causing lowering of tightening capability.
SOLUTION: In this impact tool, a rotary impact mechanism is mounted on a spindle 7 driven in rotation by a motor, and the rotary impact force generated by the rotary impact mechanism is intermittently transmitted from a hammer 8 through an anvil 3 to a tip tool 4, thereby applying the rotary impact force to the tip tool 4. The anvil 3 is provided with a buffering mechanism (a rubber damper 13) for fulfilling a buffering function to the rotating direction and the axial direction and directly transmitting the turning torque above a preset value, and the spindle 7 is fitted to the anvil 3 and the buffering mechanism (the rubber damper 3).
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种冲击工具，即使缓冲材料随着时间的推移随着塑性变形而缓冲机构也能实现稳定的缓冲功能，并且降低噪音而不引起紧固的降低能力。解决方案：在这种冲击工具中，旋转冲击机构安装在由马达旋转驱动的主轴7上，并且由旋转冲击机构产生的旋转冲击力从锤子8通过砧座3间歇地传递到尖端工具4，从而对尖端工具4施加旋转冲击力。砧座3设置有缓冲机构（橡胶缓冲器13），用于实现对旋转方向和轴向的缓冲功能，并直接传递转向扭矩高于预设值，并且主轴7装配到砧座3和缓冲机构（橡胶缓冲器3）。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006123146A Power tool 审中-公开
标题翻译：电动工具
公开(公告)号：JP2006123146A
公开(公告)日：2006-05-18
申请号：JP2004318211
申请日：2004-11-01
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： INAGAWA HIROTO , OTSU SHINKI
IPC分类号： B25F5/02
CPC分类号： B25F5/026 , B25F5/006
摘要： PROBLEM TO BE SOLVED: To provide a small power tool having a vibration control handle of excellent operability. SOLUTION: The power tool has a power tool body 1; a cylindrical handle holder 2 provided projecting from the power tool body 1; a space 11 located radially outside in the center axis perpendicular cross section of the handle holder 2; and the handle 3 covering the handle holder 2 with one end through the space 11 and composed of a plurality of members divided in the center axis parallel direction of the handle holder 2. The handle holder 2 is provided with projecting parts 2a to divide the space 11 into different length parts in the axial direction of the handle holder, and the handle 3 is provided with recesses 3a, 3b facing the projecting parts 2a. Elastic bodies 4a, 4b are disposed between the projecting parts 2a and recesses 3a, 3b. The space 11 is divided into different length parts in the axial direction of the handle holder by the projecting parts 2a provided at the handle holder 2. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供具有优异的可操作性的振动控制手柄的小型电动工具。电动工具具有电动工具主体1; 从电动工具主体1突出设置的圆筒形把手2; 位于手柄保持架2的中心轴垂直截面的径向外侧的空间11; 以及手柄3，其一端通过空间11覆盖，并且由沿着手柄保持架2的中心轴线平行方向分割的多个构件构成。手柄保持架2设有突出部2a，以将空间 11在手柄保持器的轴向方向上成为不同长度的部分，并且手柄3设置有面向突出部2a的凹部3a，3b。弹性体4a，4b设置在突出部2a和凹部3a，3b之间。空间11通过设置在手柄保持器2上的突出部2a在手柄保持架的轴向上被分成不同长度的部分。（C）2006，JPO＆NCIPI

8. 发明专利

JP2006051573A Hammering tool 审中-公开
标题翻译：锤子工具
公开(公告)号：JP2006051573A
公开(公告)日：2006-02-23
申请号：JP2004234914
申请日：2004-08-11
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： SUZUURA TSUKASA , UNNO MAYUMI , OTSU SHINKI , SATO SHINICHIRO , HIRAI TAKAHIRO
IPC分类号： B25D17/11
CPC分类号： B25D2250/121
摘要： PROBLEM TO BE SOLVED: To provide a hammering tool capable of suppressing generation of vibrations and noises.
SOLUTION: The hammering tool is equipped with a motor, a converting mechanism to convert the rotating motions of the motor into reciprocation of a piston, a motor cover to accommodate at least a part of both of the motor and the converting mechanism, a hammer to reciprocate with fluctuation of the pneumatic pressure in an air chamber caused by reciprocation of the piston, and a tip tool holding member to hold a tip tool, and is arranged to perform a specified operation by transmitting a striking force from the hammer to the tip tool, wherein the partition of a motor chamber 3a of the motor cover 3 from its crank chamber 3b is formed by a partitioning rib 3h approximately in straight form, and reinforcing ribs (1)3i and (2)3j are provided being directed from the side wall 3e of the crank chamber 3b approximately toward the center of the motor chamber 3a.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够抑制振动和噪声的产生的锤击工具。解决方案：锤击工具配备有马达，转换机构，用于将马达的旋转运动转换成活塞的往复运动，马达盖以容纳马达和转换机构的至少一部分，锤子，其随着活塞的往复运动引起的空气室中的气压的波动而往复运动;以及尖端工具保持构件，用于保持尖端工具，并且被布置成通过将来自锤的打击力传递到尖端工具，其中电动机盖3的电动机室3a从其曲柄室3b的分隔由大致直线形式的分隔肋3h形成，并且提供加强肋（1）3i和（2）3j，其被引导从曲柄室3b的侧壁3e大致朝向电动机室3a的中心。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2006015486A Impact tool 有权
标题翻译： IMPACT工具
公开(公告)号：JP2006015486A
公开(公告)日：2006-01-19
申请号：JP2005281042
申请日：2005-09-28
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： INAGAWA HIROTO , OTSU SHINKI
IPC分类号： B25D17/24
摘要： PROBLEM TO BE SOLVED: To reduce vibration of an impact tool, whose impact is generated because the compressed weight in the air chamber, which was originally driven by a motor, composed by a piston, impact striker, and cylinder, and conveyed to the housing through the piston.
SOLUTION: It is arranged in this invention to enable a cylinder 15 to slide axially, to make the reciprocating movement of the cylinder 15 in accordance with the revolution of a crankshaft 5, and to trigger movement of the cylinder 15 toward the side of the tip tool 16 in the middle of the piston 4's course from the top dead center, closest to the side of the tip tool 16, to the bottom dead center closest to the anti-tip tool side.
COPYRIGHT: (C)2006,JPO&NCIPI

10. 发明专利

JP2005246561A Vibrating drill 有权
标题翻译：振动钻
公开(公告)号：JP2005246561A
公开(公告)日：2005-09-15
申请号：JP2004061806
申请日：2004-03-05
申请人： Hitachi Koki Co Ltd , 日立工機株式会社
发明人： SAITO TAKUMA , OTSU SHINKI , WATANABE HIDEKI , SHOJI JUNICHI
IPC分类号： B23B45/16 , B28D1/14 , B28D1/26 , E02D7/02
CPC分类号： B25D11/106 , B25D16/003 , B25D2250/371
摘要： PROBLEM TO BE SOLVED: To provide a vibrating drill having structure to reduce vibration transmitting to a user without impairing hole-digging capacity of the vibrating drill at both of high speed rotation and low speed rotation.
SOLUTION: This drill is provided with a first ratchet rotating together with a spindle and moving in the axial direction and a second ratchet engaged to the first ratchet. The second ratchet is supported to be movable in the axial direction and rotatable in the rotating direction within a prescribed range.
COPYRIGHT: (C)2005,JPO&NCIPI

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