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    • 53. 发明专利
    • 歯科用ハンドピースの制御装置
    • 的牙科用机头的控制装置
    • JPWO2012164875A1
    • 2015-02-23
    • JP2013509365
    • 2012-05-23
    • 株式会社ナカニシ
    • 誠 国定誠 国定
    • A61C1/06
    • A61C1/003A61C1/0007A61C1/0015A61C1/06A61C1/12A61C3/02A61C19/04
    • 歯科用ハンドピースを持っている術者と、治療対象の患者にショックを与えるのを防ぐことができ、モータへの負荷を軽減して、その発熱を抑えることができる歯科用ハンドピースの制御装置を提供することを目的とする。歯科用ハンドピースのモータ20の回転方向を一定時間毎に切り替える。このとき、リレー17を切り替えてモータ20の回転方向を切り替える前には、モータ20に印加する電圧を低減させている。これにより、リレー17を切り替えたときにモータ20に大きな電流が流れ込むのを防ぎ、モータ20によって回転駆動される切削工具に大きな回転トルクがかかるのを防ぐ。
    • 外科医生具有牙科用机头,待处理可以从冲击防止患者,并且降低马达,能够抑制发热的牙科用机头的控制装置上的负载 本发明的一个目的是提供一种。 开关电动机20的以预定间隔牙科手持件的旋转方向。 在这种情况下,在切换继电器17之前切换电动机20的旋转方向,由此降低施加到电动机20的电压。 这防止了大电流流过电动机20切换继电器17时,防止大的旋转扭矩向切削工具旋转驱动被施加到马达20流动。
    • 56. 发明专利
    • Generator for dental handpiece
    • 牙科发生器
    • JP2013085750A
    • 2013-05-13
    • JP2011229646
    • 2011-10-19
    • Seiko Instruments Incセイコーインスツル株式会社Nakanishi:Kk株式会社ナカニシ
    • NAKAMURA YOSHIFUMIFUJINE TAKASHITAKAGI ARATA
    • A61C1/06H02K3/44H02K7/18H02K21/14
    • PROBLEM TO BE SOLVED: To provide a generator for a dental handpiece which hardly generates deterioration in performance even by a high pressure steam sterilization treatment.SOLUTION: Under a condition that it is assembled into the dental handpiece, it becomes an object of the high pressure steam sterilization treatment (for example, 135°C, steam pressure: 2 atm). In order to correspond to this high pressure steam sterilization treatment, in the generator, by using a coil covered AIW (a polyamideimide copper wiring), an improvement of corrosion resistance is realized, and in addition, the improvement of corrosion resistance is realized by wrapping a coil with the resin and the cylindrical body part by filling a silicone resin with a high adhesive properties with the cylindrical body part formed of a thermoplastic member.
    • 要解决的问题:即使通过高压蒸汽灭菌处理,也难以产生性能劣化的牙科用手持式发电机。 解决方案:在将其组装到牙科手机中的条件下,成为高压蒸汽灭菌处理(例如135℃,蒸汽压力:2atm)的目的。 为了对应于这种高压蒸汽灭菌处理,在发电机中,通过使用线圈覆盖的AIW(聚酰胺酰亚胺铜布线),实现了耐腐蚀性的提高,此外,耐腐蚀性的提高通过包装 通过用由热塑性构件形成的圆筒体部分填充具有高粘合性能的硅树脂的树脂和圆筒体部分的线圈。 版权所有(C)2013,JPO&INPIT
    • 57. 发明专利
    • Liquid tank and dental apparatus
    • 液体罐和牙科设备
    • JP2012249794A
    • 2012-12-20
    • JP2011124114
    • 2011-06-02
    • Nakanishi:Kk株式会社ナカニシ
    • NAKAGAWA MASAKITANAKA SHINICHISAKANUSHI TOMOHIRO
    • A61C19/00
    • A61C1/0061A61C1/0084A61C17/20Y10T137/3084
    • PROBLEM TO BE SOLVED: To provide a liquid tank which permits a gas passageway to be prevented from being clogged and a dental apparatus equipped with the liquid tank.SOLUTION: The liquid tank 20 having a storage space 200 in which a liquid L to be externally supplied is stored, includes a tank body 21 having a mouth portion 22 having an opening 23 formed, a cap 25 mounted on the mouth portion 22 and closing the opening 23, a liquid passageway through which the liquid L in the liquid tank 20 flows externally, a gas passageway 48 having a gap 24 generated between the mouth portion 22 and the cap 25 and a route 41 communicating with the gap 24 and the storage space 200, a liquid flowing valve 30 provided on the liquid passageway and permitting or preventing external flow of the liquid L, and an aeration valve 45 provided on the gas passageway 48 and compensating for negative pressure generated in the storage space 200.
    • 要解决的问题:提供一种能够防止气体通道堵塞的液体罐和配备有液体罐的牙科装置。 解决方案:具有存储空间200的液体罐20,其中存储有用于外部供给的液体L.包括具有形成有开口23的口部22的罐主体21,安装在口部上的帽25 如图22所示,关闭开口23,液体槽20中的液体L通过其流动的液体通道,在口部22和盖25之间产生间隙24的气体通道48和与间隙24连通的路线41 存储空间200,设置在液体通道上并允许或防止液体L的外部流动的液体流动阀30以及设置在气体通道48上并补偿在存储空间200中产生的负压的曝气阀45。 版权所有(C)2013,JPO&INPIT
    • 58. 发明专利
    • Dental hand-piece
    • 牙科手术
    • JP2012249766A
    • 2012-12-20
    • JP2011123783
    • 2011-06-01
    • Nakanishi:Kk株式会社ナカニシ
    • NAKANISHI HIDEKAZU
    • A61C1/12
    • A61C1/08A61C1/057A61C17/005
    • PROBLEM TO BE SOLVED: To provide a dental hand-piece hardly causing malfunctions and capable of improving the dust preventive function of a head portion.SOLUTION: The dental hand-piece includes: a hard-coated shaft part 8 of a gear shaft 5; a first lip 38 projecting inward in the radial direction on the inner periphery of a dust-preventive seal 9 with a ring-shaped structure; and a second lip 39 projecting inward in the radial direction at a position with a prescribed distance to the upper side from the first lip 38. When the dust-preventive seal is closely held to the peripheral surface of the shaft part of the gear shaft, a space 40 is formed between abutting parts of the first and second lips to the peripheral surface of the shaft part of the gear shaft. With this structure, penetration of dust into the gear area from the contact area between the shaft part of the gear shaft and the dust-preventive seal can be prevented, and wearing of the shaft part with dust, etc. on the contact area between the shaft part of the gear shaft and the dust-preventive seal can be also prevented.
    • 要解决的问题:提供几乎不引起故障的牙科手柄,并且能够提高头部的防尘功能。 牙科手柄包括:齿轮轴5的硬涂层轴部8; 在环状结构的防尘密封件9的内周沿径向向内突出的第一唇部38; 以及在与第一唇部38的上侧规定距离的位置处沿径向向内突出的第二唇部39.当防尘密封件紧密地保持在齿轮轴的轴部的周面时, 在第一和第二唇缘的邻接部分之间形成有与齿轮轴的轴部的周面相对的空间40。 通过这种结构,可以防止齿轮轴的轴部与防尘密封件之间的接触区域从齿轮区域渗入灰尘,并且可以防止具有灰尘等的轴部件在 也可以防止齿轮轴的轴部和防尘密封。 版权所有(C)2013,JPO&INPIT
    • 59. 发明专利
    • Dental handpiece
    • 牙科手术
    • JP2012157460A
    • 2012-08-23
    • JP2011018153
    • 2011-01-31
    • Nakanishi:Kk株式会社ナカニシ
    • MIZUNUMA MASANORIKIMURA TAKAOYOKOCHI KEITA
    • A61C1/06
    • A61C8/0089A61C1/181A61C1/185
    • PROBLEM TO BE SOLVED: To provide a handpiece capable of standing a higher-torque load.SOLUTION: The dental handpiece includes a first rotation shaft 3 which is rotatably supported within a rear casing 2R and to which the rotation of a drive source is transmitted, a second rotation shaft 9 which is rotatably supported within a fore casing 2F and to which the rotation of the first rotation shaft 3 is transmitted, a bearing 12 and a bearing 14 which are provided at a predetermined interval in a jacket 8 fixed in the front casing 2F and rotatably support the second rotation shaft 9, and a bearing 13 which is provided between the bearing 12 and the bearing 14. The bearing 13 prevents an abrasion or a crack of each gear due to misaligned meshed engagement between a first gear 5 and a second gear 10 and between a third gear 11 and a fourth gear 73 by reducing the whirling of the second rotation shaft 9.
    • 要解决的问题:提供能够承受更高扭矩负载的手持件。 解决方案:牙科手机包括第一旋转轴3,第一旋转轴3可旋转地支撑在后壳体2R内,驱动源的旋转被传递到该第一旋转轴3,第二旋转轴9可旋转地支撑在前壳体2F内, 第一旋转轴3的旋转被传递到的轴承12和轴承14,轴承12和轴承14以预定的间隔设置在固定在前壳体2F中的夹套8中并且可旋转地支撑第二旋转轴9和轴承13 其设置在轴承12和轴承14之间。轴承13防止由于第一齿轮5和第二齿轮10之间以及第三齿轮11和第四齿轮73之间的对准啮合而导致的每个齿轮的磨损或裂纹 通过减少第二旋转轴9的旋转。版权所有:(C)2012,JPO&INPIT