公开(公告)号：USD669180S1

公开(公告)日：2012-10-16

申请号：US29347990

申请日：2010-09-03

Applicant: Tetsuya Takashi ,  Shozo Nakayama

Designer： Tetsuya Takashi ,  Shozo Nakayama

公开(公告)号：US07927101B2

公开(公告)日：2011-04-19

申请号：US11886975

申请日：2006-03-22

Applicant: Tetsuya Takashi ,  Shozo Nakayama

Inventor： Tetsuya Takashi ,  Shozo Nakayama

IPC: A61C1/05

CPC classification number: A61C1/057 ,  A61C1/05 ,  Y10S415/904

Abstract: A handpiece and a method for driving the handpiece are provided in which a sucking-back problem can be prevented with a simple structure. The handpiece 10 has a gripping portion 11 to be gripped by an operator, a head 15 mounted at a distal end of the gripping portion; and a wheel 55 rotatably mounted in an interior of the head. The head has an inlet 25 from which air is supplied to the wheel and an outlet 28 from which the air is discharged, the inlet and outlet being defined in the head, at least one buffer chamber 47 defined in the head, where the air is forced in due to a centrifugal force applied thereto by rotations thereof with the wheel and then accumulated under positive pressure, passages 66, 67, 68, and 34 for guiding the accumulated air from a neighborhood of the rotating wheel to an atmosphere, and a circumferential wall 44 mounted between the outlet and the wheel for providing a resistance to the air moving from the wheel toward the outlet.

Abstract translation: 提供了用于驱动手持件的手持件和方法，其中可以以简单的结构防止吸回问题。 手持件10具有被操作者夹持的抓握部11，安装在抓握部的远端的头部15; 以及可旋转地安装在头部内部的轮55。 头部具有入口25，空气从该入口25供给到车轮;出口28，排出空气，入口和出口被限定在头部中;至少一个缓冲室47限定在头部，空气是 由于通过其与轮的转动施加到其上的离心力而在正压力下积聚的通道66,67,68和34用于将积聚的空气从旋转轮的附近引导到大气，并且周向 壁44安装在出口和车轮之间，用于提供对从车轮向出口移动的空气的阻力。

公开(公告)号：US08721333B2

公开(公告)日：2014-05-13

申请号：US12925390

申请日：2010-10-20

Applicant: Tetsuya Takashi ,  Shozo Nakayama

Inventor： Tetsuya Takashi ,  Shozo Nakayama

IPC: A61C1/05

CPC classification number: A61C1/05 ,  A61C1/12

Abstract: An air-driven rotary cutting tool including a grip part, a head part provided at a distal end of the grip portion, and a rotor of double-wheel type rotatably installed in a hollow portion formed in the head part. The rotor has a first turbine blade portion provided with a plurality of first turbine vanes surrounding the rotary axis and a second turbine blade portion integrally formed with the first turbine blade and having a plurality of second turbine vanes surrounding the rotary axis. The first turbine vane has, on its side when seen in a direction into the rotary axis, a concave shape concaved in a direction of rotation of the rotor, and the second turbine vane has, on its side, a concave shape concaving in a direction opposite from the first turbine vane.

Abstract translation: 一种空气驱动的旋转切削工具，包括握持部，设置在把手部的前端的头部，以及可旋转地安装在形成在头部的中空部的双轮型的转子。 转子具有设置有围绕旋转轴线的多个第一涡轮机叶片的第一涡轮机叶片部分和与第一涡轮机叶片一体形成且具有围绕旋转轴线的多个第二涡轮叶片的第二涡轮叶片部分。 第一涡轮叶片在从沿着旋转轴线的方向观察时的侧面具有在转子的旋转方向上凹陷的凹形状，并且第二涡轮叶片的侧面在其侧面上具有凹形， 与第一涡轮叶片相反。

公开(公告)号：US20110104636A1

公开(公告)日：2011-05-05

申请号：US12925390

申请日：2010-10-20

Applicant: Tetsuya Takashi ,  Shozo Nakayama

Inventor： Tetsuya Takashi ,  Shozo Nakayama

IPC: A61C1/05

CPC classification number: A61C1/05 ,  A61C1/12

Abstract: The air-driven rotary cutting tool comprising a grip part, a head part provided at a distal end of the grip portion; and a rotor of double-wheel type rotatably supported to a hollow portion formed in the head part around its rotary axis with a bearing, in which the rotor has a first turbine blade portion provided with a plurality of first turbine vanes surrounding the rotary axis and a second turbine blade portion integrally formed with the first turbine blade and having a plurality of second turbine vanes surrounding the rotary axis; the cutting tool is characterized by the first turbine vane having such a concave shape on its side seen in a direction into the rotary axis as to fall from upstream into downstream of its rotational direction of the rotor, and the second turbine vane having such a concave shape on its side as to fall into its opposite direction of the first turbine vane. According to the cutting tool of the present invention, the rotational speed of the rotor can be reduced without decreasing its rotary torque in addition to advantage in further downsizing of the head part.

Abstract translation: 所述气动旋转切削工具包括握持部，设置在所述把手部的前端的头部; 以及双轴型的转子，其可旋转地支撑在形成在其旋转轴线周围的头部的中空部分的轴承上，转子具有第一涡轮叶片部分，第一涡轮叶片部分设置有围绕旋转轴线的多个第一涡轮叶片， 与所述第一涡轮叶片一体形成且具有包围所述旋转轴线的多个第二涡轮叶片的第二涡轮叶片部分; 所述切削工具的特征在于，所述第一涡轮机叶片在从所述旋转轴线方向看到的从所述转子的旋转方向的上游到所述第二涡轮叶片的方向上具有这样的凹形，并且所述第二涡轮叶片具有这样的凹部 在其一侧形成为落入第一涡轮叶片的相反方向。 根据本发明的切削工具，除了能够进一步减小头部的尺寸以外，还可以减小转子的旋转速度而不降低其转矩。

公开(公告)号：US20090029312A1

公开(公告)日：2009-01-29

申请号：US11886975

申请日：2006-03-22

Applicant: Tetsuya Takashi ,  Shozo Nakayama

Inventor： Tetsuya Takashi ,  Shozo Nakayama

IPC: A61C1/05

CPC classification number: A61C1/057 ,  A61C1/05 ,  Y10S415/904

Abstract: A handpiece and a method for driving the handpiece are provided in which a sucking-back problem can be prevented with a simple structure. The handpiece 10 has a gripping portion 11 to be gripped by an operator, a head 15 mounted at a distal end of the gripping portion; and a wheel 55 rotatably mounted in an interior of the head. The head has an inlet 25 from which air is supplied to the wheel and an outlet 28 from which the air is discharged, the inlet and outlet being defined in the head, at least one buffer chamber 47 defined in the head, where the air is forced in due to a centrifugal force applied thereto by rotations thereof with the wheel and then accumulated under positive pressure, passages 66, 67, 68, and 34 for guiding the accumulated air from a neighborhood of the rotating wheel to an atmosphere, and a circumferential wall 44 mounted between the outlet and the wheel for providing a resistance to the air moving from the wheel toward the outlet.

Abstract translation: 提供了用于驱动手持件的手持件和方法，其中可以以简单的结构防止吸回问题。 手持件10具有被操作者夹持的抓握部11，安装在抓握部的远端的头部15; 以及可旋转地安装在头部内部的轮55。 头部具有入口25，空气从该入口25供给到车轮;出口28，排出空气，入口和出口被限定在头部中;至少一个缓冲室47限定在头部，空气是 由于通过其与轮的转动施加到其上的离心力而在正压力下积聚的通道66,67,68和34用于将积聚的空气从旋转轮的附近引导到大气，并且周向 壁44安装在出口和车轮之间，用于提供对从车轮向出口移动的空气的阻力。

公开(公告)号：US20080213723A1

公开(公告)日：2008-09-04

申请号：US12069985

申请日：2008-02-14

Applicant: Hitoshi Tanaka ,  Tetsuya Takashi ,  Shozo Nakayama

Inventor： Hitoshi Tanaka ,  Tetsuya Takashi ,  Shozo Nakayama

IPC: A61C1/05

CPC classification number: A61C1/185 ,  A61C1/05

Abstract: An inventive medical/dental handpiece is characterized by including: a head part 2 that rotatably holds a rotor 24 for detachably holding a tool 91; and a gripped part 3 that supports, at its front end, the head part 2, and that is gripped by an operator, wherein the gripped part 3 includes a shank portion 31 extending from the head part 2, and a body portion 32 extending from a rear end of the shank portion 31 in the direction of an obtuse angle, wherein the axial flow turbine 5 is contained in the body portion 32, and wherein the handpiece further includes a rotation transmission mechanism for transmitting a rotation of the axial flow turbine 5 to rotate the rotor 24 of the head part 2.

Abstract translation: 本发明的医用/牙科手机的特征在于包括：头部2，其可旋转地保持用于可拆卸地保持工具91的转子24; 以及在其前端支撑头部2并由操作者抓握的夹持部3，其中，夹持部3包括从头部2延伸的柄部31和从头部2延伸的主体部32 柄部31的后端沿钝角方向，其中轴流涡轮机5容纳在主体部分32中，并且其中手持件还包括用于传递轴流涡轮机5的旋转的旋转传递机构 以旋转头部2的转子24。