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    • 4. 发明专利
    • Chainsaw
    • 链锯
    • JP2014148117A
    • 2014-08-21
    • JP2013018674
    • 2013-02-01
    • Makita Corp株式会社マキタ
    • HANEDA KOJIODA JIROSUGIURA HIDEAKISUZUKI DAISUKE
    • B27B17/00B23D57/02B25F5/00
    • B27B17/02B25F5/02B27B17/00B27B17/0008
    • PROBLEM TO BE SOLVED: To provide a high-operability chain saw using a plurality of high-versatility battery packs.SOLUTION: A chain saw 10 is provided with: a main body casing 11; a guide bar 21 provided protrudingly from the main body casing 11; a saw chain 22 rotatably installed on the peripheral part of the guide bar 21; an electric motor 23 rotating the saw chain 22; and a top handle 12 extending in a cross direction at the upper part of the main body casing 11. Plural battery packs 31 are installed to the main body casing 11 as a power source 30 for feeding to the electric motor 23, and the battery packs 31 are arranged in the main body casing 11 so that a barycentric position G when viewing the chain saw 10 from a rear side is located in the range R of twofold of the horizontal length W of a grip part 12a from a horizontal center line Cw extending in a vertical direction of the grip part 12a of the top handle 12.
    • 要解决的问题:提供使用多个多功能电池组的高操作性链锯。解决方案:链锯10设置有:主体外壳11; 从主体壳体11突出地设置的导杆21; 可旋转地安装在导杆21的周边部分上的锯链22; 旋转锯链22的电动机23; 以及在主体壳体11的上部沿横向方向延伸的顶部手柄12.多个电池组31作为用于馈送到电动机23的电源30安装到主体外壳11,并且电池组 31设置在主体壳体11中,使得当从后侧观察链锯10时的重心位置G位于从水平中心线Cw延伸的手柄部分12a的水平长度W的两倍的范围R中 在顶部手柄12的把持部12a的垂直方向上。
    • 7. 发明专利
    • Power tool
    • 电动工具
    • JP2010269394A
    • 2010-12-02
    • JP2009122281
    • 2009-05-20
    • Makita Corp株式会社マキタ
    • OKOCHI KATSUMI
    • B25F5/00F16K7/12F16K24/00
    • F16K15/147B25F5/00B27B17/00Y10T137/7882
    • PROBLEM TO BE SOLVED: To provide technology that simplifies configuration of a valve in a power tool.
      SOLUTION: A chain saw includes an oil tank 100 and an oil cap 42. The oil cap 42 has a cap body 43 and a valve element 75. The cap body 43 has a communication passage 67 which communicates with the inside and outside of the oil tank 100. The valve element 75 is mounted on the cap body 43 to cover the communication passage 67. The valve element 75 is a sheet-like member formed of elastomer. The valve element 75 has an expansion part 75a and a protrusion part 75b. The expansion part 75a is curved in a dome shape. The protrusion part 75b is protruded from the expansion part 75a and has a slit 75c at a top part.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供简化电动工具中的阀的构造的技术。 解决方案:链锯包括油箱100和油盖42.油盖42具有盖体43和阀元件75.盖体43具有连通通道67,该连通通道67与内侧和外侧连通 阀元件75安装在盖主体43上以覆盖连通通道67.阀元件75是由弹性体形成的片状构件。 阀元件75具有膨胀部75a和突出部75b。 膨胀部75a弯曲成圆顶状。 突出部75b从膨胀部75a突出,在顶部具有狭缝75c。 版权所有(C)2011,JPO&INPIT