公开(公告)号：US5538347A

公开(公告)日：1996-07-23

申请号：US405976

申请日：1995-03-17

申请人： Masao Itoh ,  Yuko Takahashi ,  Yoshio Iwamura ,  Toyotsugu Itoh

发明人： Masao Itoh ,  Yuko Takahashi ,  Yoshio Iwamura ,  Toyotsugu Itoh

IPC分类号： F16C33/10 ,  F16C32/06

CPC分类号： F16C33/107 ,  F16C17/026 ,  F16C17/107

摘要： A dynamic pressure generating bearing includes a rotational body, a radial bearing provided adjacent to a center of the rotational body to rotatably support the rotational body around the radial bearing and at least one thrust bearing provided on one end of the radial bearing. When the rotational body is stably rotated, a minimum clearance generated between the rotational body and the thrust bearing is always greater than a minimum clearance generated between the rotational body and the radial bearing.

摘要翻译： 动态压力产生轴承包括旋转体，邻近旋转体的中心设置的径向轴承，以可旋转地支撑旋转体围绕径向轴承，以及设置在径向轴承的一端上的至少一个推力轴承。 当旋转体稳定地旋转时，在旋转体和推力轴承之间产生的最小间隙总是大于在旋转体和径向轴承之间产生的最小间隙。

公开(公告)号：US5711612A

公开(公告)日：1998-01-27

申请号：US540080

申请日：1995-10-06

申请人： Masao Itoh ,  Toyotsugu Itoh ,  Yoshio Iwamura

发明人： Masao Itoh ,  Toyotsugu Itoh ,  Yoshio Iwamura

IPC分类号： F16C17/10 ,  F16C33/10 ,  G02B26/12

CPC分类号： F16C33/107 ,  F16C17/107 ,  G02B26/121

摘要： In a dynamic pressure bearing, a dynamic pressure-generating groove is provided to one of a thrust bearing surface and a part of a rotator facing the thrust bearing surface on one of a first and second thrust bearings, and a thrust bearing surface and a part of the rotator on the other one of the first and second thrust bearings which is not provided with the dynamic pressure-generating groove are smoothed so that the smoothed surfaces are formed.

摘要翻译： 在动态压力轴承中，在第一和第二止推轴承中的一个上的止推轴承表面和面向推力轴承表面的转子的一部分上提供动态压力产生槽，推力轴承表面和部件 没有设置有动压发生槽的第一推力轴承和第二推力轴承中的另一个的旋转器被平滑化，从而形成平滑的表面。

公开(公告)号：US5463503A

公开(公告)日：1995-10-31

申请号：US163036

申请日：1993-12-06

申请人： Sunao Kawada ,  Masataka Inagi ,  Yoshio Iwamura ,  Toyotsugu Itoh ,  Takayoshi Hashimoto

发明人： Sunao Kawada ,  Masataka Inagi ,  Yoshio Iwamura ,  Toyotsugu Itoh ,  Takayoshi Hashimoto

IPC分类号： B23B27/20 ,  G02B26/12 ,  G02B5/08 ,  B23B3/00

CPC分类号： B23B27/20 ,  Y10T407/27 ,  Y10T82/10

摘要： A polygon mirror is produced using a diamond tool. The diamond tool includes a major cutting edge and an end cutting edge. The major cutting edge is formed straight by a rake face and a side flank, the major cutting edge having a first side and a second side. The end cutting edge is formed straight by the rake face and a front flank, the end cutting edge having a third side. A microscopic cutting edge is arranged between the second side and the third side so that the major cutting edge and the microscopic cutting edge together create a first corner at the second side, and the end cutting edge and the microscopic cutting edge create a second corner at the third side. The rake face is inclined downward from the second corner to the first side. The microscopic cutting edge is between 0.1 mm and 0.4 mm in a direction of the end cutting edge. The microscopic cutting edge at the first corner is swept back by an amount between 0.21 .mu.m and 0.6 .mu.m from an extended line of the end cutting edge in a direction perpendicular to the extended line. The material being operated on by the diamond cutting tool is held and fed relatively to the diamond tool so that the material is cut with the major cutting edge, is thereafter microscopically cut with the microscope cutting edge, and is thereafter burnish-finished with the end cutting edge.

摘要翻译： 使用金刚石工具生产多面镜。 金刚石工具包括主切削刃和端切削刃。 主切削刃由前刀面和侧齿形成直线，主切削刃具有第一侧和第二侧。 末端切削刃由前刀面和前侧面形成为直线，端切削刃具有第三侧。 在第二侧和第三侧之间布置微观切削刃，使得主切削刃和微切削刃一起在第二侧产生第一角，并且端切削刃和微切削刃在第 第三面。 前刀面从第二角向下倾斜到第一侧。 微切割刃在端切削刃的方向上为0.1mm至0.4mm。 第一角处的微观切削刃沿着与延伸线垂直的方向从末端切削刃的延长线扫过0.21μm至0.6μm之间的量。 通过金刚石切割工具操作的材料相对于金刚石工具保持并进给，使得材料用主切削刃切割，然后用显微镜切割刃进行显微切割，然后用端部进行抛光加工 前沿。

公开(公告)号：US4696452A

公开(公告)日：1987-09-29

申请号：US834103

申请日：1986-02-24

申请人： Teiji Miyagawa ,  Yoshio Iwamura ,  Masao Hayakawa

发明人： Teiji Miyagawa ,  Yoshio Iwamura ,  Masao Hayakawa

IPC分类号： F16K31/124 ,  F16K31/143

CPC分类号： F16K31/143 ,  F16K31/124

摘要： A trip throttle valve with a manual exerciser and combination of a hydraulic piston and a biasing force bearing sleeve is provided in place of a piston. The piston is not directly connected to a valve stem and the sleeve is threadably engaged with the valve stem so as to cause relative axial movement between the sleeve and the valve stem when the stem is rotated through the manual exerciser. The hydraulic portion of the valve is provided with a by-pass passage so that the piston is made axially movable toward the sleeve under the pressure which occurs when the by-pass passage for the hydraulic liquid is blocked but the piston is arrested at a certain axial position where the by-pass passage is still blocked and the axial movement of the sleeve is restricted against the piston. Blocking of the by-pass passage is arranged to take place after the axial separating distance between the sleeve and the piston reaches a predetermined value so that any inadvertent movement of the valve stem by the engagement of the piston with the sleeve is avoided.

摘要翻译： 提供具有手动锻炼器和组合液压活塞和偏压力轴承套筒的行程节流阀来代替活塞。 活塞不直接连接到阀杆，并且套筒与阀杆螺纹接合，以便当阀杆通过手动锻炼器旋转时，使得套筒和阀杆之间产生相对的轴向运动。 阀的液压部分设置有旁通通道，使得当液压液体的旁通通道被阻塞但活塞在某一特定的位置被停止时，活塞能够在压力下朝向套筒轴向移动 旁路通道仍被阻挡的轴向位置，并且套筒的轴向运动被限制在活塞上。 旁通通道的封闭被布置成在套筒和活塞之间的轴向分离距离达到预定值之后发生，从而避免了通过活塞与套筒接合而导致的阀杆的任何无意的移动。