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    • 23. 发明申请
    • FIXING DEVICE FOR ROTARY BLADE
    • 旋转刀片固定装置
    • US20100040474A1
    • 2010-02-18
    • US12448814
    • 2007-12-19
    • Yuji TakahashiYoichiro Koike
    • Yuji TakahashiYoichiro Koike
    • F01D5/30
    • B27B5/32B24B45/006B27B5/38
    • A fixing device for fixing a rotary blade to a spindle in a bench circular saw, for example, has a structure in which it is difficult to achieve structural compactification in radial size. Therefore, there has been a problem of sacrificing an inclination angle and a cutting depth of the rotary blade. Provided is a fixing device free from such problems owing to employment of a structure which can be easily compactified in a radial direction. Cam portions are provided on respective surfaces opposite to each other of an intermediate flange and an outer flange so as to mesh with each other. The cam portions slide with each other with a rotational force imparted to the rotary blade so that the rotational force is converted into a displacement in a direction of an axis of the intermediate flange and is applied in a direction of clamping the rotary blade.
    • 例如,用于将旋转刀片固定到台架圆锯中的心轴的定影装置具有难以实现径向尺寸的结构压实的结构。 因此,存在牺牲旋转刀片的倾斜角度和切削深度的问题。 由于使用可以容易地沿径向压实的结构,所以没有这种问题的定影装置。 凸轮部分设置在彼此相对的中间凸缘和外凸缘的彼此相对的表面上,以彼此啮合。 凸轮部分以赋予旋转刀片的旋转力彼此滑动,使得旋转力被转换成在中间凸缘的轴线方向上的位移,并沿夹紧旋转刀片的方向施加。
    • 24. 发明授权
    • Driving tool having a two-part flywheel
    • 具有两部分飞轮的驾驶工具
    • US07637408B2
    • 2009-12-29
    • US12000174
    • 2007-12-10
    • Yuji TakahashiShinji Hirabayashi
    • Yuji TakahashiShinji Hirabayashi
    • B25C1/06
    • B25C1/06B25C5/15
    • It is an object of the present invention to increase durability of a driving tool. A representative driving tool comprises an elongated operating member that drives in a driving material and a drive mechanism that drives the operating member. The drive mechanism comprises a rotating flywheel and the flywheel includes an inner wheel and an outer wheel which are concentrically disposed to each other. The inner circumferential surface of the outer wheel is fitted on an outer circumferential surface of the inner wheel. The outer circumferential surface of the outer wheel directly contacts the operating member and thus, the rotational force of the flywheel is transmitted from the inner wheel to the operating member via the outer wheel and the drive mechanism linearly moves. A frictional force between the outer circumferential surface of the inner wheel and the inner circumferential surface of the outer wheel is set to be smaller than a frictional force between the outer circumferential surface of the outer wheel and the operating member. With such construction, when the operating member contacts the rotating flywheel, slippage is caused between the inner wheel and the outer wheel such that only a smaller frictional force may be produced between the inner wheel and the outer wheel. Therefore, stress which acts upon the inner wheel and the outer wheel can be alleviated and as a result, wear of the flywheel and the operating member can be reduced to increase the durability.
    • 本发明的目的是提高一种驱动工具的耐久性。 代表性的驱动工具包括驱动驱动材料的细长操作构件和驱动操作构件的驱动机构。 驱动机构包括旋转飞轮,飞轮包括彼此同心地设置的内轮和外轮。 外轮的内周面嵌合在内轮的外周面上。 外轮的外圆周表面直接接触操作构件,因此飞轮的旋转力经由外轮从内轮传递到操作构件,并且驱动机构线性移动。 内轮的外周面与外轮的内周面之间的摩擦力被设定为小于外轮的外周面与操作构件之间的摩擦力。 通过这种结构,当操作构件接触旋转的飞轮时,在内轮和外轮之间产生滑动,从而在内轮和外轮之间只能产生较小的摩擦力。 因此,可以减轻作用在内轮和外轮上的应力,从而可以减少飞轮和操作构件的磨损,从而提高耐久性。
    • 25. 发明申请
    • Vacuum Pump
    • 真空泵
    • US20090257889A1
    • 2009-10-15
    • US12227152
    • 2007-05-14
    • Yongwei ShiYuji Takahashi
    • Yongwei ShiYuji Takahashi
    • F04D19/04B23P15/04
    • F04D19/042F04D29/542F04D29/644Y10T29/49323
    • [Problem to be Solved] Stator blade wheels and rotor blade wheels do not interfere with each other using lower-cost but wider cutting-width cutting or grinding for half-cutting-off of the stator blade wheels and not using expensive but narrower cutting-width wire electric discharge machining.[Solution] The distance h between a base end face 12ta (12tb) of a stator-blade-wheel outer ring part 12a and the corresponding rotor-blade end face 4aa (4ab), is set at a value larger than the maximum deformation of the running rotor blade wheel 4a during the pump operation. The larger distance h keeps perfectly stator-rotor separation, while the outer ring part 12a of a stator blade wheel 12 goes, in assembling, into the rotor area on account of large shift of any half of stator blade wheels owing to the wide cutting width. It makes also easy stator blade wheel assembling of the pump, as it is allowable to arrange half stator blade wheels with some eccentricity.
    • [待解决的问题]定子叶片轮和转子叶片轮不会相互干扰,而是使用较低成本但更宽的切割宽度的切割或磨削来切割定子叶轮,而不是使用昂贵但较窄的切割 - 宽丝放电加工。 定子叶轮外圈部12a的基端面12ta(12tb)与相应的转子叶片端面4aa(4ab)之间的距离h被设定为大于最大变形量 在泵操作期间运行的转子叶片轮4a。 较大的距离h保持完全的定子 - 转子分离,而定子叶轮12的外环部分12a由于宽的切割宽度而在组装时进入转子区域,因为任何一半的定子叶轮的大的偏移 。 它也使得泵的定子叶轮组装变得容易,因为允许以一些偏心布置半定子叶轮。
    • 27. 发明申请
    • Driving tool
    • 驾驶工具
    • US20080257933A1
    • 2008-10-23
    • US12000174
    • 2007-12-10
    • Yuji TakahashiShinji Hirabayashi
    • Yuji TakahashiShinji Hirabayashi
    • B25C1/06
    • B25C1/06B25C5/15
    • It is an object of the present invention to increase durability of a driving tool. A representative driving tool comprises an elongated operating member that drives in a driving material and a drive mechanism that drives the operating member. The drive mechanism comprises a rotating flywheel and the flywheel includes an inner wheel and an outer wheel which are concentrically disposed to each other. The inner circumferential surface of the outer wheel is fitted on an outer circumferential surface of the inner wheel. The outer circumferential surface of the outer wheel directly contacts the operating member and thus, the rotational force of the flywheel is transmitted from the inner wheel to the operating member via the outer wheel and the drive mechanism linearly moves. A frictional force between the outer circumferential surface of the inner wheel and the inner circumferential surface of the outer wheel is set to be smaller than a frictional force between the outer circumferential surface of the outer wheel and the operating member. With such construction, when the operating member contacts the rotating flywheel, slippage is caused between the inner wheel and the outer wheel such that only a smaller frictional force may be produced between the inner wheel and the outer wheel. Therefore, stress which acts upon the inner wheel and the outer wheel can be alleviated and as a result, wear of the flywheel and the operating member can be reduced to increase the durability.
    • 本发明的目的是提高一种驱动工具的耐久性。 代表性的驱动工具包括驱动驱动材料的细长操作构件和驱动操作构件的驱动机构。 驱动机构包括旋转飞轮,飞轮包括彼此同心地设置的内轮和外轮。 外轮的内周面嵌合在内轮的外周面上。 外轮的外圆周表面直接接触操作构件,因此飞轮的旋转力经由外轮从内轮传递到操作构件,并且驱动机构线性移动。 内轮的外周面与外轮的内周面之间的摩擦力被设定为小于外轮的外周面与操作构件之间的摩擦力。 通过这种结构,当操作构件接触旋转的飞轮时,在内轮和外轮之间产生滑动,从而在内轮和外轮之间只能产生较小的摩擦力。 因此,可以减轻作用在内轮和外轮上的应力,从而可以减少飞轮和操作构件的磨损,从而提高耐久性。
    • 28. 发明申请
    • Image data correcting device for correcting image data to remove back projection without eliminating halftone image
    • 图像数据校正装置,用于校正图像数据以去除背投影而不消除半色调图像
    • US20080094647A1
    • 2008-04-24
    • US11892107
    • 2007-08-20
    • Yuji TakahashiHiroyuki KawamotoHiroaki Fukuda
    • Yuji TakahashiHiroyuki KawamotoHiroaki Fukuda
    • H04N1/60
    • H04N1/4095
    • An image data correcting device eliminates a back projection image without eliminating an image corresponding to a low-intensity halftone image. An intensity difference detection part detects an intensity difference between first image data corresponding to a part of a predetermined small area and second image data corresponding to the remaining parts of the predetermined small area. A halftone detection part determining whether the first image data corresponds to a halftone image. An intensity change part changes an intensity of the first image data to a predetermined low intensity, when the intensity difference is equal to or smaller than a first predetermined value and the first image data does not correspond to the halftone image and the intensity of the first image data is equal to or smaller than a second predetermined value.
    • 图像数据校正装置消除背投影图像而不消除与低强度半色调图像相对应的图像。 强度差检测部分检测对应于预定小区域的一部分的第一图像数据与对应于预定小区域的剩余部分的第二图像数据之间的强度差。 确定第一图像数据是否对应于半色调图像的半色调检测部分。 当强度差等于或小于第一预定值并且第一图像数据不对应于半色调图像和第一图像的强度时,强度变化部分将第一图像数据的强度改变为预定的低强度 图像数据等于或小于第二预定值。