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    • 11. 发明申请
    • Thread Forming Tap and Method for Manufacturing the Same
    • 螺纹成型丝锥及其制造方法
    • US20080268967A1
    • 2008-10-30
    • US11918243
    • 2005-04-27
    • Takayuki NakajimaKentarou Norimatsu
    • Takayuki NakajimaKentarou Norimatsu
    • B21J13/02B21K1/64
    • B23G7/02
    • A cold forming tap and a method of manufacturing the cold forming tap. Since the following side margin M2 of the following side flank (22b) of a male screw (22) is deviated from the leading side margin M1 of the leading side flank (22a) thereof in a screw-in rotating direction as shown in FIG. 2 (a), the following side margin M2 bites precedently in biting and a force to push back a tap is suppressed to reduce a tapping torque. Also, a margin part M may be formed parallel with the axis of the cold forming tap (10), it can be easily manufactured at low cost Namely, when the male screw (22) is ground by a grinding wheel (32), a margin can be symmetrically formed with respect to a bottom as shown in FIG. 2 (b) when the tilt angle θ of the axis of a tap material (30) relative to the centerline of the grinding wheel (32) is the same as the lead angle of the male screw. However, when the tilt angle θ is increased more than the lead angle, the following side margin M2 can be deviated in the screw-in rotating direction ac shown in FIG. 2 (a). As a result, the cold forming tap can be easily manufactured at (b) low cost in the same manner as before.
    • 冷成型丝锥及冷成形丝锥的制造方法。 由于外螺纹(22)的后侧侧面(22b)的后侧边缘M 2 2从前侧的前侧边缘M 1 1偏离 其侧面(22a)以如图3所示的旋转方向旋转。 如图2(a)所示,在咬入时,以下的侧边缘M 2 2咬合,并且抑制用于推回龙头的力来减小攻丝扭矩。 此外,边缘部分M可以与冷成形丝锥(10)的轴线平行地形成,可以以低成本容易地制造。即,当通过砂轮(32)研磨外螺纹(22)时, 如图1所示,边缘可相对于底部对称地形成。 如图2(b)所示,当龙头材料(30)的轴线相对于砂轮(32)的中心线的倾斜角θ与外螺纹的导程角相同时。 然而,当倾斜角度θ比引导角增大时,随后的侧边缘M 2可以在图1所示的螺旋旋转方向ac上偏离。 2(a)。 结果,与(b)成本相同,冷成形丝锥可以容易地制造。
    • 15. 发明授权
    • Secondary battery
    • 二次电池
    • US4668595A
    • 1987-05-26
    • US861423
    • 1986-05-09
    • Akira YoshinoKenichi SanechikaTakayuki Nakajima
    • Akira YoshinoKenichi SanechikaTakayuki Nakajima
    • H01M4/36H01M4/48H01M4/58H01M10/40
    • H01M10/05H01M4/36H01M4/485H01M4/583H01M4/587
    • This invention provides a secondary battery in a nonaqueous type using a substance indicated in I below and/or a substance indicated in II below as an active material for either of positive and negative electrodes:I: a composite oxide possessing a layer structure and represented by the general formula:A.sub.x M.sub.y N.sub.z O.sub.2wherein A stands for at least one alkali metal, M for a transition metal, N for at least one member selected from the group consisting of Al, In, and Sn, and x, y, and z respectively for the number falling in a specific range,II: an n-doped carbonaceous material which has a BET-method specific surface area, and a crystal thickness, Lc, in the X-ray diffraction and a true density, .rho., both having the values falling in a specific range.The secondary battery of this invention is small and light, excels in cyclicity and self-discharging property, and possesses a high energy density.
    • 本发明提供了使用下述I所示物质和/或下述II所示物质作为正极和负极中的任一种的活性物质的非水型二次电池:I:具有层结构并由 通式:AxMyNzO2其中A代表至少一种碱金属,M代表过渡金属,N代表选自Al,In和Sn中的至少一种,x,y和z分别用于 数字落在特定范围内,II:具有BET方法比表面积的n掺杂碳质材料和X射线衍射中的晶体厚度Lc,以及具有值下降的真实密度rho 在特定范围内。 本发明的二次电池体积小,重量轻,循环性和自放电性优异,能量密度高。
    • 18. 发明授权
    • Spiral fluted tap and method for manufacturing the same
    • 螺旋槽纹丝锥及其制造方法
    • US08708621B2
    • 2014-04-29
    • US13203392
    • 2009-03-09
    • Takayuki NakajimaKouji Miyake
    • Takayuki NakajimaKouji Miyake
    • B23G5/06
    • B23G5/06B23C3/02B23G2240/08Y10T408/9048Y10T408/907
    • A spiral fluted tap is provided which includes a threaded portion having an external thread corresponding to an internal thread to be cut and a cutting edge formed along a spiral flute formed to divide the external thread, and being screwed into a prepared hole that is provided on a workpiece to cut an internal thread by the cutting edge on an inner circumferential surface of the prepared hole with discharging chips toward a shank via the spiral flute, the spiral flute having a stepped portion at a rear end of a chamfer portion or in a portion on a shank side from the rear end of the chamfer portion in the threaded portion, and a flute bottom diameter on a distal end side of the spiral fluted tap from the stepped portion being smaller than a flute bottom diameter on a shank side from the stepped portion.
    • 提供了一种螺旋槽形丝锥,其包括具有对应于待切割内螺纹的外螺纹的螺纹部分和沿着形成为分割外螺纹的螺旋槽形成的切削刃,并被拧入设置在 工件,其通过切削刃在预备孔的内周面上切割内螺纹,通过螺旋槽将排屑朝向柄排出,螺旋槽在倒角部分的后端具有阶梯部分,或部分 在螺纹部分中的倒角部分的后端的柄侧上,并且从阶梯部分到螺旋形槽纹抽头的远端侧上的凹槽底部直径小于从阶梯部分的柄侧的凹槽底部直径 一部分。
    • 19. 发明授权
    • Group of taps with prepared hole cutting tools
    • 一组抽头与准备孔切削工具
    • US08496534B2
    • 2013-07-30
    • US12449392
    • 2007-02-21
    • Jiro OsawaTakehiro YamamotoTakayuki Nakajima
    • Jiro OsawaTakehiro YamamotoTakayuki Nakajima
    • B23B51/08B23B51/00
    • B23G5/20B23G2200/143Y10T408/352Y10T408/356Y10T408/9048
    • In FIG. 2, a diameter Dd of drilling edges of a drill is selected smaller than a valley diameter d1 of a male thread of a tap portion, and an inner diameter D1 of a female thread is defined by the valley diameter d1 of the male thread. Therefore, a predetermined radial gap is formed between the male thread 30 formed by the tap portion and the drill. When a tap with the drill is reversely rotated to be pulled out from the female thread after cutting the female thread, the tap released from the restriction may deflectively displace in the diameter direction upon pulling out the male thread of the tap portion from the female thread. However, the drill hardly contacts with the female thread, so that the occurrence of the defective product due to the contact is suppressed.
    • 在图 如图2所示,选择钻头的钻削刃的直径Dd小于龙头部的外螺纹的谷径d1,内螺纹的内径D1由外螺纹的谷径d1限定。 因此,在由龙头部形成的阳螺纹30与钻头之间形成预定的径向间隙。 当切割内螺纹时,当钻头的龙头反向旋转以从内螺纹拉出时,从限位器释放的龙头在从螺纹拔出龙头部分的外螺纹时可以在直径方向上偏转地移位 。 然而,钻头几乎不与内螺纹接触,从而抑制了由于接触引起的缺陷产品的发生。
    • 20. 发明授权
    • Spiral tap
    • 螺旋水龙头
    • US08186915B2
    • 2012-05-29
    • US11990686
    • 2007-04-26
    • Takayuki NakajimaToshihiro Sato
    • Takayuki NakajimaToshihiro Sato
    • B23G5/06
    • B23G5/06B23G2200/40B24B19/022Y10T408/9048
    • A helical flute has a constant lead part and a gradually increased lead part. The constant lead part has an axial length ranging from 0.3×LA to 1.2×LA and includes at least entirety of a leading part, so that the cutting performance of a cutting edge at the leading part and shape of chips (curled shape, etc.) are stable. In the constant lead part, because a lead is the smallest and a helix angle is large, a rake angle of the cutting edge is large, so that an excellent cutting quality is obtained and the chips become curled well. Meanwhile, in the gradually increased lead part, because of the lead gradually increased toward a shank, the chips are rapidly discharged toward the shank.
    • 螺旋槽具有恒定的引导部分和逐渐增加的引线部分。 恒定引线部分具有从0.3×LA到1.2×LA的轴向长度,并且包括至少整个前端部分,使得切屑的前端部分和切屑形状(卷曲形状等)的切割性能 )是稳定的。 在恒定引线部分中,由于引线最小,螺旋角大,所以切削刃的前角大,因此切削质量优异,切屑变得卷曲良好。 同时,在引导部分逐渐增加的情况下,由于引线朝向柄方向逐渐增加,芯片迅速向柄方向排出。