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1. 发明专利

JP2012135844A Work tool 审中-公开
标题翻译：工作工具
公开(公告)号：JP2012135844A
公开(公告)日：2012-07-19
申请号：JP2010290454
申请日：2010-12-27
申请人： Makita Corp , 株式会社マキタ
发明人： IKUTA HIRONORI , MATSUURA YUTA , KAMIMOTO JUNPEI , NISHIO YOSUKE
IPC分类号： B25B23/157
CPC分类号： B25B21/00 , B25F5/001 , H02K7/11 , H02K7/145
摘要： PROBLEM TO BE SOLVED: To provide a technique effective for preventing wearing relating to power transmission in a work tool having a power transmitting mechanism for transmitting the power of the driving motor in a tip tool.SOLUTION: The power transmitting mechanism 131 includes a driving gear 133 rotated and driven by a driven motor, a spindle 117 holding a driver bit 119, arranged spaced apart from the driving gear 133 in the longitudinal axis direction of the driver bit 119, allowed to relatively rotate with the driving gear 133, a magnet 134 arranged in the driving gear 133, a conductive body 137 arranged spaced apart by a predetermined distance from the magnet 134 arranged in the spindle 117, the power is transmitted from the driving gear 133 to the spindle 117 by an eddy current flowing in the conductive body 137 caused by the magnetic flux of the magnet 134 when the driving gear 133 relatively rotates to the driving gear 133 with the magnet 134 and the conductive body 137 arranged spaced apart by the predetermined distance.
摘要翻译：要解决的问题：提供一种在具有用于在尖端工具中传递驱动电动机的动力的动力传递机构的作业工具中有效防止与动力传递有关的磨损的技术。解决方案：动力传递机构131包括由从动马达旋转和驱动的驱动齿轮133，保持驱动器钻头119的主轴117，其在驱动器钻头119的纵轴方向上与驱动齿轮133间隔开设置允许与驱动齿轮133相对旋转，布置在驱动齿轮133中的磁体134，与布置在主轴117中的与磁体134间隔开预定距离的导电体137，电力从驱动齿轮传递当驱动齿轮133相对于驱动齿轮133转动时，由磁铁134的磁通量引起的导电体137中流动的涡流133与磁体134和导电体137间隔开的导电体137 预定距离。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2012135843A Power tool 有权
标题翻译：电动工具
公开(公告)号：JP2012135843A
公开(公告)日：2012-07-19
申请号：JP2010290451
申请日：2010-12-27
申请人： Makita Corp , 株式会社マキタ
发明人： IKUTA HIRONORI , HANAI TAKAMASA , ITO AKIHIRO
IPC分类号： B25B21/00 , B25B23/157
CPC分类号： B25F5/001 , B25B21/00 , B25B23/0064 , F16H13/08
摘要： PROBLEM TO BE SOLVED: To provide a power tool having a gear speed reducing mechanism, which is free of backlash.SOLUTION: The power tool has a planetary gear speed reducing mechanism 131. The planetary gear speed reducing mechanism 131 has a driving-side member 135 that is rotationally driven by a prime mover 111, a driven-side member 139 which is rotatably and coaxially disposed with the driving-side member 135 and to which a tool bit 119 is coupled, and an intervening member 137 which is disposed between the driving-side member 135 and the driven-side member 139. The intervening member 137 is configured as a planetary member at least rotating by frictional force acting on its contact surface in contact with the driving-side member 135 when the driving-side member 135 thereby transmitting torque of the driving-side member 135 to the driven-side member 139 at reduced speed.
摘要翻译：要解决的问题：提供一种没有齿隙的齿轮减速机构的动力工具。电动工具具有行星齿轮减速机构131.行星齿轮减速机构131具有驱动侧构件135，该驱动侧构件135由原动机111旋转驱动，从动侧构件139可旋转并与驱动侧构件135同轴配置，工具钻头119与其连接，以及设置在驱动侧构件135和从动侧构件139之间的中间构件137.中间构件137被构造为当驱动侧构件135从而将驱动侧构件135的扭矩以较低的速度传递到从动侧构件139时，行星构件至少通过作用在与驱动侧构件135接触的接触表面上的摩擦力旋转。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2008155369A Electric hammer 有权
标题翻译：电动锤
公开(公告)号：JP2008155369A
公开(公告)日：2008-07-10
申请号：JP2008029254
申请日：2008-02-08
申请人： Makita Corp , 株式会社マキタ
发明人： IKUTA HIRONORI
IPC分类号： B25D17/24 , B25D11/12
CPC分类号： B25D11/125 , B25D17/24 , B25D2211/003 , B25D2217/0088 , B25D2217/0092
摘要： PROBLEM TO BE SOLVED: To provide a technology useful for improving overall performance of an electric hammer, such as weight reduction, appearance, and cost control, while securing vibration damping ability of the electric hammer.
SOLUTION: The electric hammer 101 is composed of a hammer bit 129, a driving motor 121, a crank mechanism 123 which drives an impact element 128 by converting output rotation of the driving motor 121 into linear motion in a longitudinal axis direction of the hammer bit 129, and a counter weight 201 which is detachably mounted on the crank mechanism 123 and performs vibration damping of the impact element 128.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种有助于提高电锤的整体性能的技术，例如减轻重量，外观和成本控制，同时确保电锤的振动阻尼能力。电锤101由锤钻头129，驱动马达121，曲柄机构123构成，该曲柄机构123通过将驱动马达121的输出旋转变换为直线运动而驱动冲击元件128 锤头129和可拆卸地安装在曲柄机构123上并进行冲击元件128的减振的配重201.（C）2008，JPO＆INPIT

4. 发明专利

JP2004167640A Motor-driven hammer 有权
公开(公告)号：JP2004167640A
公开(公告)日：2004-06-17
申请号：JP2002337115
申请日：2002-11-20
申请人： Makita Corp , 株式会社マキタ
发明人： IKUTA HIRONORI
IPC分类号： B25D17/10 , B23B45/16 , B25D11/12 , B25D16/00
摘要： PROBLEM TO BE SOLVED: To provide a motor-driven hammer equipped with a clutch mechanism for disengaging transmission of a drive motor torque to a hammer bit in case the working torque of the hammer bit to a work to be processed has exceeded a specified set value, in which it is possible to change the working torque set value of the hammer bit easily and widely without bringing about complication of the structure. SOLUTION: The motor-driven hammer is equipped with a drive motor 121 for driving the hammer bit, a first power transmitting mechanism 131 to transmit the rotational output of the motor 121 upon converting into linear motions in the hammer bit long axis direction, a second power transmitting mechanism 139 to transmit the rotational output of the motor 121 to the hammer bit as the rotational output in the hammer bit circumferential direction, and the clutch mechanism 201 to disengage transmission of the torque of the motor 121 to the hammer bit by the second power transmitting mechanism 139 in case the working torque of the hammer bit to the work processed has exceeded the specified set value. The clutch mechanism 201 is structured so that the set value of the working torque for disengaging transmission of the torque of the motor 121 to the hammer bit can be changed freely within the specified range. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2014133295A Grinder 审中-公开
标题翻译：磨床
公开(公告)号：JP2014133295A
公开(公告)日：2014-07-24
申请号：JP2013004032
申请日：2013-01-11
申请人： Makita Corp , 株式会社マキタ
发明人： IKUTA HIRONORI
IPC分类号： B24B23/02 , B24B55/05
摘要： PROBLEM TO BE SOLVED: To provide an improved technology relating to a rational attachment structure of a wheel cover.SOLUTION: A grinder includes: a body part having an annular part 62; and a wheel cover 40 which may be attached to the annular part 62. The wheel cover 40 includes an annular cylinder part 42 attached to an outer periphery of the annular part 62. The annular part 62 is composed of a base part 62a and a tip part 62b. The tip part 62b has hardness higher than that of the cylinder part of the wheel cover 40. The structure has an effect of inhibiting wear of the cylinder part 42 which occurs when the wheel cover 40 rotates.
摘要翻译：要解决的问题：提供与车轮罩的合理安装结构相关的改进技术。解决方案：研磨机包括：具有环形部分62的主体部分; 以及可以附接到环形部分62的轮盖40.轮盖40包括附接到环形部分62的外周的环形圆筒部分42.环形部分62由基部62a和尖端第62b部分。前端部62b的硬度高于轮罩40的圆筒部的硬度。该结构具有抑制当车轮盖40旋转时发生的缸部42的磨损的效果。

6. 发明专利

JP2012106302A Rotary tool 有权
标题翻译：旋转工具
公开(公告)号：JP2012106302A
公开(公告)日：2012-06-07
申请号：JP2010256052
申请日：2010-11-16
申请人： Makita Corp , 株式会社マキタ
发明人： IKUTA HIRONORI
IPC分类号： B25F5/00 , B24B23/00
CPC分类号： B25F5/006
摘要： PROBLEM TO BE SOLVED: To provide a hand-held rotary tool that can improve usability while achieving reduction of vibration of a tool body.SOLUTION: The rotary tool includes the tool body 103, a drive shaft 112 provided to the tool body, a driven shaft 121 attached with a tip tool 125, an Oldham's coupling 123 interposed between the drive shaft 112 and the driven shaft 121 to transmit rotation of the drive shaft 112 to the driven shaft 121, and an elastomer 141 interposed between the driven shaft 121 and the tool body 103. The driven shaft 121 is configured such that it is restricted in the relative movement to the tool body 103 in the longitudinal direction of the driven shaft 121, and the relative movement to the tool body 103 is permitted in a direction intersecting the longitudinal direction of the driven shaft 121, and power transmission from the drive shaft 112 is maintained via the Oldham's coupling 123 during the relative movement, and it is configured such that the relative movement of the driven shaft 121 to the tool body 103 is buffered by the elastomer 141.
摘要翻译：要解决的问题：提供一种能够在实现工具体的振动减少的同时提高可用性的手持旋转工具。解决方案：旋转工具包括工具主体103，设置到工具主体的驱动轴112，附接有刀片工具125的从动轴121，插入在驱动轴112和从动轴121之间的十字联轴器123 以将驱动轴112的旋转传递到从动轴121，以及插入在从动轴121和工具主体103之间的弹性体141.从动轴121被构造成使其相对于工具主体103的相对运动受到限制在从动轴121的纵向方向上，允许沿与从动轴121的纵向交叉的方向相对于工具主体103的移动，并且通过Oldham联轴器123保持来自驱动轴112的动力传递相对运动，并且其被构造成使得从动轴121相对于工具主体103的相对运动被弹性体141缓冲。版权所有：（C）2012，JPO＆INPIT

7. 发明专利

JP2009233814A Working tool 有权
标题翻译：工作工具
公开(公告)号：JP2009233814A
公开(公告)日：2009-10-15
申请号：JP2008085010
申请日：2008-03-27
申请人： Makita Corp , 株式会社マキタ
发明人： IKUTA HIRONORI
IPC分类号： B25D17/24
CPC分类号： B25D17/24 , B25D2211/003 , B25D2217/0019 , B25D2250/131 , B25D2250/191 , B25D2250/235 , B25D2250/245 , B25D2250/321 , B25D2250/345 , B25D2250/365 , B25D2250/371
摘要： PROBLEM TO BE SOLVED: To provide a technique effective for reducing transmission of external force caused by violent action of a tool bit to the tool body in a working tool.
SOLUTION: The working tool accomplishing a predetermined machining work by a linear motion of the tool bit 119 in a longitudinal direction has: a tool body 103, a tool holder 137 holding the tool bit 119 in the distal end region and extending in the longitudinal direction of the tool bit 119, and a resilient body 155. A rear side of the tool holder 137 is extended to a side opposite to the distal end region into the tool body 103 and is coupled rotatably, in the extended region, in the directions of the Y axis and the X axis intersecting the Z axis centering around a rotary point P on the Z axis defined by the longitudinal axis line of the tool bit 119 with respect to the tool body 103. The resilient body 155 applies an urging force such that the tool holder 137 is held at a predetermined position, i. e. its initial position, with respect to the tool body 103.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种有效的技术，用于减少工具在工具中对工具主体的剧烈作用而引起的外力传递。解决方案：通过工具钻杆119在纵向方向上的线性运动来实现预定加工工作的加工工具具有：工具主体103，工具夹持器137，其将工具钻头119保持在远端区域中并延伸工具头119的纵向和弹性体155.工具夹持器137的后侧延伸到与工具主体103的远端区域相对的一侧，并且在延伸区域中可旋转地联接在延伸区域中 Y轴和X轴的方向相对于工具主体103由工具头119的纵轴线限定的Z轴上的旋转点P围绕Z轴相交。弹性体155施加促动力，使得工具架137保持在预定位置，即， e。关于工具体103的初始位置。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2008307654A Hammering tool 有权
标题翻译：锤子工具
公开(公告)号：JP2008307654A
公开(公告)日：2008-12-25
申请号：JP2007159152
申请日：2007-06-15
申请人： Makita Corp , 株式会社マキタ
发明人： SUGIYAMA YOSHIO , IKUTA HIRONORI
IPC分类号： B25D9/04 , B25D17/24
摘要： PROBLEM TO BE SOLVED: To provide an opening and closing technique effective for rationally performing opening and closing control of a ventilation part communicating an air chamber with the out side, in a hammering tool.
SOLUTION: The hammering tool has a tool body 103, a cylinder 141, a driving element 129 performing linear motion in the longitudinal direction of a tool bit in the cylinder 141, a hammering element 143 performing linear action in the longitudinal direction of a tool bit in the cylinder 141, and an air chamber 141a formed between the driving element 129 and the hammering element 143 in the cylinder 141. The hammering tool has furthermore a ventilation part 141b provided in the cylinder 141 and communicating an air chamber 141a with the outside, and a ventilation part opening and closing member 151 arranged slidably in the tool bit longitudinal direction outside the cylinder ventilation part 141 for performing opening and closing control of the ventilation part 141b by moving between an opening position for opening the ventilation part 141b and a closing position for closing the ventilation part, during the hammering work by a tool bit 119.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种有效的打开和关闭技术，用于在锤击工具中合理执行与外侧连通空气室的通风部分的打开和关闭控制。解决方案：锤击工具具有工具主体103，气缸141，在气缸141中的工具头的纵向方向上进行直线运动的驱动元件129，在纵向方向上呈线性作用的锤击元件143 气缸141中的工具钻头，以及形成在缸体141中的驱动元件129和锤击元件143之间的空气室141a。此外，锤击工具还具有设置在气缸141中的通气部141b，并使空气室141a与外部，以及在工具头纵向方向上可滑动地设置在气缸通气部141外部的通风部件打开和关闭构件151，用于通过在用于打开通气部141b的打开位置和通气部141b的打开位置之间移动来执行通气部141b的打开和关闭控制在工具钻头119的锤击作业期间关闭通气部件的关闭位置。（C）版权所有：（C）2009，JPO＆INPIT

9. 发明专利

JP2006055914A Power tool 有权
标题翻译：电动工具
公开(公告)号：JP2006055914A
公开(公告)日：2006-03-02
申请号：JP2004237255
申请日：2004-08-17
申请人： Makita Corp , 株式会社マキタ
发明人： IKUTA HIRONORI
IPC分类号： B25D11/12
CPC分类号： B25D17/24 , B25D11/005 , B25D11/125 , B25D2211/003 , B25D2216/0046 , B25D2217/0088 , B25D2250/021
摘要： PROBLEM TO BE SOLVED: To provide a reciprocative power tool which is further improved in power transmission mechanism for converting rotational output of a drive motor into a linear motion in a major axial direction of a tool bit.
SOLUTION: The power transmission mechanism 173 has: a rotatable internal gear 175; a planetary gear 179 revolving around the internal gear 175; a power transmission section 183 eccentrically arranged on the planetary gear 179; and a rotation inhibiting mechanism 185 for inhibiting rotation of the internal gear in normal times. Based on application of a load on the tool bit, rotation inhibition by the rotation inhibiting mechanism 185 is canceled, and the internal gear 175 is allowed to rotate a predetermined amount in a predetermined direction, to thereby change the momentum of the power transmission section in the major axial direction of the tool bit. Further the internal gear 175 is allowed to rotate in the predetermined direction but inhibited from rotating in a direction opposite to the predetermined direction.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种进一步改进用于将驱动电动机的旋转输出转换成工具头的主轴向的直线运动的动力传递机构的往复式电动工具。动力传递机构173具有：可旋转内齿轮175; 围绕内齿轮175旋转的行星齿轮179; 偏心地设置在行星齿轮179上的动力传递部183; 以及用于在正常时间禁止内齿轮的旋转的旋转禁止机构185。基于对工具头施加负载，抵消旋转抑制机构185的旋转抑制，允许内齿轮175沿预定方向旋转预定量，从而改变动力传递部分的动量刀头的主轴向。此外，内齿轮175允许沿预定方向旋转，但是禁止在与预定方向相反的方向上旋转。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2004345001A Power tool 有权
公开(公告)号：JP2004345001A
公开(公告)日：2004-12-09
申请号：JP2003142209
申请日：2003-05-20
申请人： Makita Corp , 株式会社マキタ
发明人： IKUTA HIRONORI
IPC分类号： B25D11/12
摘要： PROBLEM TO BE SOLVED: To provide effective techniques for a power tool for achieving compactness of a gear housing, and facilitating assemblage work for a connecting rod to a crank pin.
SOLUTION: In an electric hammer 101 in which a hammer bit is driven through a crank mechanism 123, the crank pin 139 is inserted into an installation hole 147 formed in the connecting rod 145 in a crossing direction to a longer axis direction of the connecting rod 145, so that the connecting rod 145 is connected to the crank pin 139. On the connection side of the connecting rod 145 to the crank pin 139, a cut groove 149 is provided in prescribed depth, so that the crank pin 139 is movable in diametric directions of the crank pin 139. The cut groove 149 is opened in a longer axis direction end face of the connecting rod 145 at one end, and the other end is faced with the installation hole 147.
COPYRIGHT: (C)2005,JPO&NCIPI

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