公开(公告)号：US06186756B1

公开(公告)日：2001-02-13

申请号：US09572049

申请日：2000-05-16

申请人： Yukihiro Kojima ,  Tetsuya Sasage ,  Noboru Toda

发明人： Yukihiro Kojima ,  Tetsuya Sasage ,  Noboru Toda

IPC分类号： F04C200

CPC分类号： F04C29/0071 ,  F04C18/16 ,  F04C2240/60 ,  F16B2200/406 ,  Y10T403/473 ,  Y10T428/24322

摘要： A rotor 1 forming screw teeth is projectingly provided at its outer end 2 on the axis thereof with a center shaft 3. The center shaft 3 is provided at its outer end 4 with a smaller-diameter shaft 5 or a concaved fitting hole. A separate rotor shaft 6 which is to be fitted over the smaller-diameter shaft 5 or fitted into the concaved fitting hole is provided with another concaved fitting hole 7 or smaller-diameter shaft. A metal shaft around which synthetic resin is molded is formed at its peripheral surface with a spiral groove or corrugated groove in the opposite revolutional direction with respect to the revolutional direction of the screw rotor. The spiral groove is formed with smooth arc curved line connecting profiles of adjacent grooves. The shaft is provided with a step, and synthetic resin is molded around the shaft surface to form a screw rotor.

摘要翻译： 形成螺旋齿的转子1在其外端部2的轴线上以中心轴3突出地设置。中心轴3在其外端4处设置有较小直径的轴5或凹入的嵌合孔。 要安装在小直径轴5上或装配在凹形装配孔中的单独的转子轴6设置有另一个凹入的装配孔7或较小直径的轴。 在其圆周表面上形成有相对于螺杆转子的旋转方向在相反旋转方向上的螺旋形槽或波纹状槽的金属轴。 螺旋槽形成有相邻凹槽的平滑弧形曲线连接轮廓。 轴设置有台阶，合成树脂围绕轴表面模制以形成螺杆转子。

公开(公告)号：US6139298A

公开(公告)日：2000-10-31

申请号：US111446

申请日：1998-07-08

申请人： Yukihiro Kojima ,  Tetsuya Sasage ,  Noboru Toda

发明人： Yukihiro Kojima ,  Tetsuya Sasage ,  Noboru Toda

IPC分类号： F04C18/16 ,  F04C29/00

CPC分类号： F04C29/0071 ,  F04C18/16 ,  F04C2240/60 ,  Y10T403/4688 ,  Y10T403/473 ,  Y10T428/24322

摘要： A rotor 1 forming screw teeth is projectingly provided at its outer end 2 on the axis thereof with a center shaft 3. The center shaft 3 is provided at its outer end 4 with a smaller-diameter shaft 5 or a concaved fitting hole. A separate rotor shaft 6 which is to be fitted over the smaller-diameter shaft 5 or fitted into the concaved fitting hole is provided with another concaved fitting hole 7 or smaller-diameter shaft. A metal shaft around which synthetic resin is molded is formed at its peripheral surface with a spiral groove or corrugated groove in the opposite revolutional direction with respect to the revolutional direction of the screw rotor. The spiral groove is formed with smooth arc curved line connecting profiles of adjacent grooves. The shaft is provided with a step, and synthetic resin is molded around the shaft surface to form a screw rotor.

摘要翻译： 形成螺旋齿的转子1在其外端部2的轴线上以中心轴3突出地设置。中心轴3在其外端4处设置有较小直径的轴5或凹入的嵌合孔。 要安装在小直径轴5上或装配在凹形装配孔中的单独的转子轴6设置有另一个凹入的装配孔7或较小直径的轴。 在其圆周表面上形成有相对于螺杆转子的旋转方向在相反旋转方向上的螺旋形槽或波纹状槽的金属轴。 螺旋槽形成有相邻凹槽的平滑弧形曲线连接轮廓。 轴设置有台阶，合成树脂围绕轴表面模制以形成螺杆转子。