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    • 2. 发明专利
    • Power tool
    • 电动工具
    • JP2008110410A
    • 2008-05-15
    • JP2006293309
    • 2006-10-27
    • Hitachi Koki Co Ltd日立工機株式会社
    • YAMADA HIDETAKATACHIBANA TOSHIHIKO
    • B23D51/16B23D49/16B27B19/02
    • PROBLEM TO BE SOLVED: To provide a power tool simplifying a constitution of a second shaft or an eccentric shaft, and improving an assembling property.
      SOLUTION: The second shaft 9 has a drive rotating shaft 9A and a flange portion 9B which are integrally constituted. Viewed in order from the flange portion 9B side, a second eccentric shaft 9b, a first eccentric shaft 9a, a bearing supported portion 9c, and a belleville spring are inserted in the second shaft 9. A nut 9C is screwed at a first end portion of the second shaft 9. Therefore, the nut 9C and the flange portion 9B clips the second eccentric shaft 9b and the first eccentric shaft 9a while interposing the belleville spring and the bearing supported portion 9c in an axial direction of the drive rotating shaft 9A. Consequently, the first eccentric shaft 9a, the second eccentric shaft 9b, the flange portion 9B, and the drive rotating shaft 9A can be integrally rotated.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种简化第二轴或偏心轴的构造的电动工具,并且提高组装性能。 解决方案:第二轴9具有一体构成的驱动旋转轴9A和凸缘部9B。 从凸缘部9B侧依次观察,第二轴9插入有第二偏心轴9b,第一偏心轴9a,轴承支撑部9c以及贝叶弹簧。螺母9C在第一端部 因此,螺母9C和凸缘部9B在沿着驱动旋转轴9A的轴向插入圆锥形弹簧和轴承支撑部9c的同时夹住第二偏心轴9b和第一偏心轴9a。 因此,第一偏心轴9a,第二偏心轴9b,凸缘部9B和驱动旋转轴9A能够一体旋转。 版权所有(C)2008,JPO&INPIT
    • 4. 发明专利
    • Reciprocative electric saw
    • 电力电表
    • JP2005319783A
    • 2005-11-17
    • JP2005131191
    • 2005-04-28
    • Hilti Agヒルティ アクチエンゲゼルシャフト
    • HAAS GUENTERWIDMER LOUIS
    • B23D49/04B23D49/16B23D51/16B23D51/20B27B3/12B27B11/00B27B19/02B27B19/09
    • B23D51/16B23D49/165
    • PROBLEM TO BE SOLVED: To provide a reciprocative electric saw always achieving a high cutting ability not only in a swing and reciprocative mode of the electric saw accompanied by swing of the saw blade but in a pure reciprocative mode not accompanied by the swing.
      SOLUTION: The reciprocative electric saw (10) has a driving motor (17), a driving means (21) for a tool (15), and a balance mass member (22) compensating the mass imbalance of the driving means (21). Rotation movement of the driving motor (17) is converted to reciprocative movement of the driving means (21) along the first movement axis line (41) , and is converted to reverse phase reciprocative movement of the balance mass member (22) along the second movement axis (42) by a converting means (20). The balance mass member (22) is guided in the direction always keeping a predetermined angle to the driving means (21) by extending the second movement axis line (42) of the balance mass member (22) at an angle of α to the first movement axis line (41) of the driving means (21).
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供一种总是实现高切割能力的往复式电锯,不仅在电锯的摆动和往复模式下伴随着锯片的摆动,而且在不伴随摆动的纯粹的往复运动模式 。 < P>解决方案:往复式电动锯(10)具有驱动电动机(17),用于工具(15)的驱动装置(21)和补偿驱动装置的质量不平衡的平衡质量构件(22) 21)。 驱动马达(17)的旋转运动被转换为驱动装置(21)沿着第一移动轴线(41)的往复运动,并且被转换成平衡质量构件(22)沿着第二运动轴线(21)的相反的往复运动 移动轴(42)由转换装置(20)。 通过使平衡质量构件(22)的第二移动轴线(42)以α的角度向第一方向延伸,平衡质量构件(22)沿与驱动装置(21)总是保持预定角度的方向被引导 驱动装置(21)的移动轴线(41)。 版权所有(C)2006,JPO&NCIPI
    • 6. 发明专利
    • Jigsaw
    • 拼图
    • JP2005014396A
    • 2005-01-20
    • JP2003182231
    • 2003-06-26
    • Ryobi Ltdリョービ株式会社
    • YASUHARA SHIN
    • B23D51/16B27B19/02
    • PROBLEM TO BE SOLVED: To reduce vibration during driving and to improve cutting precision.
      SOLUTION: In a jigsaw in which the rotation of the rotor 1 of a driving part is converted into the reciprocal linear movement of a blade arbor 4 through an eccentric shaft 2 and a cam groove 3, the eccentric shaft 2 penetrates the cam groove 3 and the blade arbor 4 to the side of anti-driving part, and a weight 12 is arranged contactably at the tip of the penetrating eccentric shaft 2. By the installation of the weight 12, the center of gravity of the jigsaw approaches the blade arbor 4, and the tip of the eccentric shaft is brought into contact with the weight 12 when the eccentric shaft 2 is rotated. Therefore, vibration is reduced during driving to improve the cutting precision.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:减少驾驶过程中的振动,提高切割精度。 解决方案:在驱动部分的转子1的旋转通过偏心轴2和凸轮槽3转换成叶片心轴4的往复线性运动的拼图中,偏心轴2穿过凸轮 凹槽3和叶片心轴4到反驱动部分的侧面,重物12可接触地布置在穿透偏心轴2的尖端处。通过安装重物12,拼图的重心接近 叶片心轴4,当偏心轴2旋转时,偏心轴的顶端与重物12接触。 因此,在行驶过程中振动减小,提高了切割精度。 版权所有(C)2005,JPO&NCIPI
    • 10. 发明专利
    • DEVICE FOR CLAMPING JIGSAW BLADE
    • JP2002346827A
    • 2002-12-04
    • JP2001157008
    • 2001-05-25
    • RYOBI LTD
    • FUKINUKI MASATOSHIYASUHARA SHIN
    • B27B33/12B23D49/08B23D51/08B27B19/02F16B2/06F16B2/18
    • PROBLEM TO BE SOLVED: To simplify structure of a device for clamping a jigsaw blade. SOLUTION: The device for clamping a jigsaw blade is provided with a sleeve (12) attached to a lower end of a plunger (10) of a jigsaw via a torsion spring (13), an end plate (19) positioned at the lower end of the sleeve and having an insertion hole (20) of a blade (11) and a tilting cam surface (21) formed on an upper side of the insertion hole (20) for guiding a projecting piece (11a) on a side edge of the blade, an engaging member (14) having an engaging means (23) which holds the upper end of the blade before twisting the sleeve so that the projecting piece of the blade stays in the insertion hole and allows the projecting piece to pass through the insertion hole when the blade is twisted by a predetermined angle together the sleeve against the energizing force of the torsion spring and allows that the sleeve (12) returns to the original position lifting the projecting piece passed through the insertion hole by the tilting cam surface, and a compression spring (15) enclosed in the plunger for energizing the engaging member toward the end plate.