公开(公告)号：US12178670B2

公开(公告)日：2024-12-31

申请号：US17292823

申请日：2019-11-13

Applicant: DENTSPLY SIRONA INC. ,  SIRONA DENTAL SYSTEMS GMBH

Inventor： Siegfried Goisser ,  Stefan Göbel

IPC: A61C1/05 ,  A61C1/18

Abstract: A dental turbine driven by pressurized air comprises a head housing (1) with a turbine chamber (2) and a rotor shaft (3) mounted using an anti-friction bearing (8a) with a non-rotatably mounted turbine wheel (13). The outer race (10a) of the anti-friction bearing (8a) extends into the turbine chamber (2) in axial direction. The turbine wheel (13) comprises an annular web (16a) that is arranged concentrically to the outer race (10a) of the anti-friction bearing (8a) and, together with the outer race (10a), forms a gap seal (17a). This gap seal (17a) extends in axial direction between outer race (10a) and annular web (16a) and prevents the sucking-in of liquids and dirt particles into the turbine chamber (2) during inertial rotation of the turbine wheel (13).

公开(公告)号：US09833298B2

公开(公告)日：2017-12-05

申请号：US14415547

申请日：2013-07-17

Applicant: Sirona Dental Systems GmbH

Inventor： Matthias Rein ,  Siegfried Goisser ,  Metin Ertugrul ,  Ralf Sutter

IPC: A61C1/05

CPC classification number: A61C1/05

Abstract: A dental apparatus that includes a turbine, a rotor, and a disruptive contour. The turbine drives a tool by compressed air. The rotor is arranged in a turbine compartment and rotates about its longitudinal axis. The rotor includes a plurality of blades that extend up to a front side of the rotor. The disruptive contour is at least one protrusion on a wall opposite the front side of the rotor which extends over a height in a direction of the longitudinal axis of the rotor.

公开(公告)号：US20150173851A1

公开(公告)日：2015-06-25

申请号：US14415547

申请日：2013-07-17

Applicant: Sirona Dental Systems GmbH

Inventor： Matthias Rein ,  Siegfried Goisser ,  Metin Ertugrul ,  Ralf Sutter

IPC: A61C1/05

CPC classification number: A61C1/05

Abstract: Disclosed is a dentists' preparation instrument (1) comprising a turbine (4) for driving a tool (3) using compressed air, and a rotor (6) that is arranged in a turbine compartment (5), rotates about a longitudinal axis (7), and has blades (11) extending to a face (13) of the rotor (6). The turbine compartment (5) has a wall (10) opposite the face (13), and a discharge port (12) for the compressed air in the direction of a returning air duct (8). The discharge port (12) is disposed in such a way that at leasts parts of the blades (11) swipe past the discharge port (12) as they rotate about the longitudinal axis (7). The turbine compartment (5) also has a disruptive contour chamber (15) that adjoins the face (13). The face (13) of the blades (11) of the rotor (6) that faces the disruptive contour chamber is open towards the disruptive contour chamber (15). Inside the disruptive contour chamber (15), a disruptive contour (9) is formed on the wall (10) opposite the face (13) by at least one projection (14) extending along a height (h) in the direction of the longitudinal axis (7).

Abstract translation: 公开了一种牙医的准备仪器（1），其包括用于使用压缩空气驱动工具（3）的涡轮机（4）和布置在涡轮机室（5）中的转子（6），其围绕纵向轴线 并且具有延伸到转子（6）的面（13）的叶片（11）。 涡轮机室（5）具有与面（13）相对的壁（10）和用于压缩空气沿返回空气管道（8）的方向的排出口（12）。 排出口（12）设置成使得当叶片（11）的至少一部分围绕纵向轴线（7）旋转时，其经过排出口（12）滑动。 涡轮室（5）还具有邻接面（13）的破坏性轮廓室（15）。 面向破碎轮廓室的转子（6）的叶片（11）的面（13）朝着破坏性轮廓室（15）打开。 在破坏性轮廓室（15）内部，在与面（13）相对的壁（10）上形成有破坏性轮廓（9），该至少一个突起（14）沿纵向方向沿高度（h）延伸 轴（7）。

公开(公告)号：US20150064648A1

公开(公告)日：2015-03-05

申请号：US14389446

申请日：2013-04-02

Applicant: Sirona Dental Systems GmbH

Inventor： Thomas Bierbaum ,  Matthias Rein ,  Ralf Sutter ,  Siegfried Goisser

IPC: A61C1/18 ,  F16C33/78 ,  F16C25/08 ,  F16C33/58

CPC classification number: A61C1/181 ,  A61C1/0061 ,  A61C1/088 ,  F16C19/06 ,  F16C19/547 ,  F16C25/083 ,  F16C33/581 ,  F16C33/583 ,  F16C33/767 ,  F16C33/784 ,  F16C2316/13

Abstract: A dental handpiece (1) having a drive (3) of a tool (4), which drive is located in a head housing (2), has at least one media-conducting line arranged in the head housing, which media-conducting line has an outlet opening to the tool, and a tool receptacle (16) arranged in a drive chamber, which tool receptacle is rotatably supported by means of a rolling bearing (11) in a support (14) of the head housing (2) on a side of the drive chamber facing the tool. The rolling bearing has an outer race (13), which is supported against the head housing (2) radially in the support (14) in the area of a raceway (22) and which has a sub-area (21), the outside diameter D2 of which is reduced compared to the outside diameter D1 in the area of the raceway (22). The head housing has a housing projection (23), which extends into the area of the reduced outside diameter D2, and the media-conducting line (17) runs at least partially through said housing projection (23).

Abstract translation: 具有工具（4）的驱动器（3）的牙齿手柄（1），该驱动器位于头部外壳（2）中，具有布置在头部外壳中的至少一个介质导电线，该介质导线 具有到工具的出口，以及布置在驱动室中的工具容器（16），该工具容器通过滚动轴承（11）可旋转地支撑在头部壳体（2）的支撑件（14）中， 驱动室的一侧面向工具。 滚动轴承具有外座圈（13），该外座圈（13）在滚道（22）的区域中径向地支撑在头部壳体（2）上，并且具有子区域（21），外侧 其直径D2与在轨道（22）的区域中的外径D1相比减小。 头壳体具有延伸到减小的外径D2的区域中的壳体突起（23），并且介质传导线（17）至少部分地穿过所述壳体突起（23）延伸。

公开(公告)号：US09867676B2

公开(公告)日：2018-01-16

申请号：US14767198

申请日：2014-11-02

Applicant: Sirona Dental Systems GmbH

Inventor： Metin Ertugrul ,  Siegfried Goisser

IPC: A61C1/05 ,  A61C1/18

CPC classification number: A61C1/052 ,  A61C1/0038 ,  A61C1/057 ,  A61C1/185 ,  A61C1/186

Abstract: A dental preparation instrument having a pneumatic turbine (1) with a rotor (5) for driving a tool (1.1), wherein the rotor (5), which is mounted in a turbine chamber (18) for rotation about an axis of rotation (4), is impinged by compressed air from a compressed-air nozzle (22). A first radial partition (23) has an opening (17) via which an annular space (8) is in flow connection with an outlet duct (19).

公开(公告)号：US09554870B2

公开(公告)日：2017-01-31

申请号：US14415511

申请日：2013-07-17

Applicant: Sirona Dental Systems GmbH

Inventor： Matthias Rein ,  Siegfried Goisser ,  Metin Ertugrul ,  Ralf Sutter ,  Alexander Muhlbeyer

IPC: A61C1/05

CPC classification number: A61C1/05

Abstract: A dentists' preparation instrument (1) comprises a turbine (4) for driving a tool (3) using compressed air, and a rotor (6) that is arranged in a turbine compartment (5), rotates about a longitudinal axis (7), and has blades (11) extending to a face (13) of the rotor (6). The turbine compartment (5) has a discharge port (12) for the compressed air towards a returning air duct (8). Said discharge port (12) is disposed in such a way that both the face (13) of the rotor (6) and parts of the blades (11) sweep past the discharge port (12) as the rotor rotates about the longitudinal axis (7). For deceleration purposes, the rotor (6) has a deceleration contour (9) on the face (13), said deceleration contour being formed by projections (14), and the turbine compartment (5) has a deceleration contour chamber (15) inside which the deceleration contour (9) is accommodated. The discharge port (12) in part also extends across the deceleration contour chamber (15).

Abstract translation: 牙医的准备仪器（1）包括用于使用压缩空气驱动工具（3）的涡轮机（4）和布置在涡轮机室（5）中的转子（6）围绕纵向轴线（7）旋转， 并且具有延伸到转子（6）的面（13）的叶片（11）。 涡轮机室（5）具有用于压缩空气朝向返回空气管道（8）的排出口（12）。 所述排出口（12）的设置方式使转子（6）的面（13）和叶片（11）的一部分随着转子围绕纵向轴线旋转而扫过排出口（12） 7）。 为了减速，转子（6）在面（13）上具有减速轮廓（9），所述减速轮廓由突起（14）形成，涡轮室（5）内部具有减速轮廓室（15） 减速轮廓（9）被容纳。 排出口（12）也部分延伸穿过减速轮廓室（15）。

公开(公告)号：US20150164613A1

公开(公告)日：2015-06-18

申请号：US14415511

申请日：2013-07-17

Applicant: Sirona Dental Systems GmbH

Inventor： Matthias Rein ,  Siegfried Goisser ,  Metin Ertugrul ,  Ralf Sutter ,  Alexander Muhlbeyer

IPC: A61C1/05

CPC classification number: A61C1/05

Abstract: A dentists' preparation instrument (1) comprises a turbine (4) for driving a tool (3) using compressed air, and a rotor (6) that is arranged in a turbine compartment (5), rotates about a longitudinal axis (7), and has blades (11) extending to a face (13) of the rotor (6). The turbine compartment (5) has a discharge port (12) for the compressed air towards a returning air duct (8). Said discharge port (12) is disposed in such a way that both the face (13) of the rotor (6) and parts of the blades (11) sweep past the discharge port (12) as the rotor rotates about the longitudinal axis (7). For deceleration purposes, the rotor (6) has a deceleration contour (9) on the face (13), said deceleration contour being formed by projections (14), and the turbine compartment (5) has a deceleration contour chamber (15) inside which the deceleration contour (9) is accommodated. The discharge port (12) in part also extends across the deceleration contour chamber (15).

Abstract translation: 牙医的准备仪器（1）包括用于使用压缩空气驱动工具（3）的涡轮机（4）和布置在涡轮机室（5）中的转子（6）围绕纵向轴线（7）旋转， 并且具有延伸到转子（6）的面（13）的叶片（11）。 涡轮机室（5）具有用于压缩空气朝向返回空气管道（8）的排出口（12）。 所述排出口（12）的设置方式使转子（6）的面（13）和叶片（11）的一部分随着转子围绕纵向轴线旋转而扫过排出口（12） 7）。 为了减速，转子（6）在面（13）上具有减速轮廓（9），所述减速轮廓由突起（14）形成，涡轮室（5）内部具有减速轮廓室（15） 减速轮廓（9）被容纳。 排出口（12）也部分延伸穿过减速轮廓室（15）。

公开(公告)号：US10736712B2

公开(公告)日：2020-08-11

申请号：US15566226

申请日：2016-04-18

Applicant: DENTSPLY SIRONA inc.

Inventor： Metin Ertugrul ,  Siegfried Goisser ,  Stefan Gobel

IPC: A61C1/14 ,  A61B17/16 ,  B23B31/117 ,  B23B31/20

Abstract: The invention relates to a clamping device for clamping a cylindrical instrument shank, in particular, a dental instrument, the clamping device including a spring-loaded element for holding the instrument shank, a hollow shaft for transmitting a rotational movement, and a plunger, with the spring-loaded element being designed as a sleeve with a cylindrical wall, a first opening and a second opening; and the wall having cut-outs. The spring-loaded element, the shaft and the plunger have axes of rotation that are arranged coaxially; the shaft protrudes at least partially into the first opening of the spring-loaded element; and the plunger protrudes at least partially into the second opening of the spring-loaded element.

公开(公告)号：USD903868S1

公开(公告)日：2020-12-01

申请号：US29696773

申请日：2019-07-01

Applicant: DENTSPLY SIRONA Inc.

Designer： Siegfried Goisser ,  Stefan Krust

公开(公告)号：US10736713B2

公开(公告)日：2020-08-11

申请号：US16016056

申请日：2018-06-22

Applicant: DENTSPLY SIRONA Inc.

Inventor： Thomas Bierbaum ,  Matthias Rein ,  Ralf Sutter ,  Siegfried Goisser

IPC: A61C1/18 ,  F16C33/58 ,  F16C33/76 ,  F16C25/08 ,  F16C33/78 ,  F16C37/00 ,  F16C35/04 ,  F16C19/06 ,  F16C19/54 ,  A61C1/08 ,  A61C1/00 ,  A61C1/05

Abstract: A dental handpiece (1) having a drive (3) of a tool (4), which drive is located in a head housing (2), has at least one media-conducting line arranged in the head housing, which media-conducting line has an outlet opening to the tool, and a tool receptacle (16) arranged in a drive chamber, which tool receptacle is rotatably supported by means of a rolling bearing (11) in a support (14) of the head housing (2) on a side of the drive chamber facing the tool. The rolling bearing has an outer race (13), which is supported against the head housing (2) radially in the support (14) in the area of a raceway (22) and which has a sub-area (21), the outside diameter D2 of which is reduced compared to the outside diameter D1 in the area of the raceway (22). The head housing has a housing projection (23), which extends into the area of the reduced outside diameter D2, and the media-conducting line (17) runs at least partially through said housing projection (23).