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CN1116082A - 电动牙刷 - Google Patents

电动牙刷 Download PDF

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Publication number
CN1116082A
CN1116082A CN95105863A CN95105863A CN1116082A CN 1116082 A CN1116082 A CN 1116082A CN 95105863 A CN95105863 A CN 95105863A CN 95105863 A CN95105863 A CN 95105863A CN 1116082 A CN1116082 A CN 1116082A
Authority
CN
China
Prior art keywords
procapsid
electric toothbrush
vibration
back casing
transfer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN95105863A
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English (en)
Inventor
今井清史
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kitano Co Ltd
Japan CBM Corp
Original Assignee
Kitano Co Ltd
Japan CBM Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP1994008519U external-priority patent/JP3008856U/ja
Priority claimed from JP1994009603U external-priority patent/JP3009127U/ja
Application filed by Kitano Co Ltd, Japan CBM Corp filed Critical Kitano Co Ltd
Publication of CN1116082A publication Critical patent/CN1116082A/zh
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/3409Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
    • A61C17/3481Vibrating brush body, e.g. by using eccentric weights
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C2204/00Features not otherwise provided for
    • A61C2204/002Features not otherwise provided for using batteries

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Brushes (AREA)

Abstract

一圆柱形的壳体由一前壳体和一后壳体组成。安装在前壳体中的电动机的旋转轴上连有一偏心块。前壳体的前端设有一连接轴,刷子通过该连接轴与前壳体配连。连接轴内插有一金属柱销,前、后壳体之间设有一O形圈。

Description

电动牙刷
本发明涉及一种电动牙刷。
通常,电动牙刷包括:一壳体及一刷子部分,其中壳体被分成一内装有振动装置的前部和一作手柄用的后部,而刷子部分是通过一从前端突出的连接轴而与前部的前端相连。所述的前部由振动装置来振动,并通过连接轴将此振动传递到刷子部分。
前部的振动也同样传递到作为手柄的后部,因而这种振动就不能有效地传递到刷子部分,也就是意味着振动效率有所降低。此外,振动还会进一步传递到使用者的手上,会使其感到不舒服。
传统的电动牙刷还有另一个如下所述的缺点。
壳体是由塑料制成的,而用以连接刷子部分的连接轴一体成形于前部的前端。当使用电动牙刷刷牙时,刷子部分抵压住牙齿和/或牙床,因而通过刷子部分有一横向的力施加到连接轴上。由于连接轴是塑料制成的并且具有相对较小的直径,所以它也易于被弹性弯曲,从而在刷子部分和壳体之间产生一间隙。这也使得振动的传递效果降低。另外,甚至可能发生刷子部分从壳体上脱落的极端情况。
本发明的目的在于提供一种电动牙刷,它能有效地将振动传递到刷子部分。
本发明的电动牙刷包括:一由一前壳体和一后壳体所组成的壳体、一设置在前壳体中的电动机、一与电动机旋转轴相连以构成一振动装置的偏心块、一装在后壳体内用来驱动电动机的电池、一形成于前壳体前端的连接轴、一通过所述连接轴与前壳体相接合的刷子部分、用来将前、后壳体彼此连接的连接装置以及用来提高传递给刷子的振动传递效率的振动传递增强装置。
振动传递增强装置是一设置在前、后壳体之间的诸如O型垫圈之类的振动吸收元件。
振动传递增强装置也可以是一设置在连接轴内的金属柱销。
本发明的这些或其它一些目的和特征将在下文中结合附图所做的描述中变得更为明了。
图1是本发明电动牙刷的侧视图;
图2是图1所示电动牙刷的剖视图;
图3是该电动牙刷的一主要部件的放大的剖视图;
图4是壳体前部的放大的剖视图;
图5和图6则是开关处在开、关两种状态下的剖视图;
参见图1,本发明的电动牙刷包括一由一前壳体2和一作手柄用的后壳体3所组成的壳体1,以及一与前壳体2相连的刷子4。
如图2所示,前壳体2中装有一电动机5,后壳体3中则装有电池6。电动机5的旋转轴8上固定着一偏心块7。电池6的正极通过一弹簧片12和一导线13和一“通—断”开关11的可动式触片10相连,而“通—断”开关11的固定式触片14则和电动机5的正极端相连。电池6和马达5的负极端通过一弹簧接触片15相连。
参见图3,前壳体2的内侧壁上固定着一连接圆筒16,其外径略小于后壳体3的内径,这样后壳体就可与连接圆筒相接合。在连接圆筒的外周面上设有一环形槽18,以配合O形垫圈17。后壳体3通过其前部与连接圆筒16的配合而与前壳体2相连接,通过配合使用O形垫圈17在前、后壳体间形成一防水密封。
另外,前壳体2的前端向前突出有一连接轴20。连接轴20上具有一轴向孔21,该孔中设有一金属销22,它通过粘接剂23固定在孔中。
刷子4相应于连接轴20也具有一轴向孔24,这样就可由孔24和连接轴20相配合而使得刷子4连接到前壳体2上。
参见图5,开关11包括一推压钮25和一滑动钮26。推压钮25由塑料制成并具有一轴部27、从轴部27分别向前、后方向上伸出的弹性部分28a和28b、一在轴部27的上表面形成的上凸起30以及在轴部下表面形成的一下凸起31。轴部27可滑动地配合在前壳体2上的一孔32中。在前壳体2和轴部27之间的环形空间34内装有一O形圈33以用作一水密封地保持轴部27用的密封装置。环形空间34要形成为按钮25能移动。弹性部分28a和28b的各自的两端都有一支脚35,它们滑动配合于在前壳体2上的孔36中。下凸起31和可动触片10相接触以构成开关11。
滑动钮26沿纵向安装在前壳体2上。在滑动钮26的下侧设置了一挤压凸块37以与上凸起30相对应。在图5所示的未工作的状况下,一前支脚38紧靠着一前止挡件40。
当滑动钮26如图6所示向前滑动时,其上的推压凸块推动上凸起30,以使推压钮25向内移动,如此,下凸起31推动了可动触片10,使其与固定触片14接触,从而就闭合了开关11。此时,滑动钮26的后支脚41紧压着一后止挡件42。开关闭合后,电动机5开始工作以使偏心块7旋转,随即,前壳体2也开始振动了。前壳体的振动通过连接轴20传递给刷子4。另一方面,由于在前壳体2和后壳体3之间设置了O形圈,因而前壳体的振动只是被少量的传到后壳体3,所以前壳体的振动被有效的传递到刷子4,而后壳体3的振动却不大。这样,牙刷的使用者在操作时就不会有什么不良感觉了。
由于连接轴20内插有金属柱梢22,因而该轴不会被弯曲,所以在刷子和前壳体之间便不会形成间隙。如此,前壳体的振动可进一步有效地传递给刷子,而刷子也不会脱落了。
虽然上面已经结合本发明的较佳实施例对本发明作了描述,但是应该理解,这些仅仅是为了描述本发明,而并不限制其保护范围,该保护范围仅由所附权利要求来限定。

Claims (5)

1.一种电动牙刷,包括:
一由一前壳体和一后壳体所组成的圆柱形壳体;
一设置在前壳体中的电动机;
一与电动机旋转轴相连以构成一振动装置的偏心块;
一装在后壳体内用来驱动电动机的电池;
一形成于前壳体前端的连接轴;
一通过连接轴与前壳体相接合的刷子部分;
用来将前、后壳体彼此连接的连接装置;以及
用来提高传递给刷子的振动传递效率的振动传递增强装置。
2.如权利要求1所述的电动牙刷,其特征在于,振动传递增强装置是一设置在前、后壳体之间的诸如O形垫圈之类的振动吸收元件。
3.如权利要求1所述的电动牙刷,其特征在于,振动传递增强装置也可以是一设置在连接轴内的金属柱销。
4.如权利要求2所述的电动牙刷,其特征在于,连接装置是一形成在前壳体后端的连接圆筒,其用来被插入后壳体。
5.如权利要求4所述的电动牙刷,其特征在于,振动吸收元件是一设置在连接圆筒和后壳体之间的O形圈。
CN95105863A 1994-06-10 1995-06-09 电动牙刷 Pending CN1116082A (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP1994008519U JP3008856U (ja) 1994-06-10 1994-06-10 電動歯ブラシ
JP8519/94 1994-06-10
JP9603/94 1994-07-01
JP1994009603U JP3009127U (ja) 1994-07-01 1994-07-01 電動歯ブラシ

Publications (1)

Publication Number Publication Date
CN1116082A true CN1116082A (zh) 1996-02-07

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ID=26343049

Family Applications (1)

Application Number Title Priority Date Filing Date
CN95105863A Pending CN1116082A (zh) 1994-06-10 1995-06-09 电动牙刷

Country Status (3)

Country Link
US (1) US5590434A (zh)
EP (1) EP0691107A1 (zh)
CN (1) CN1116082A (zh)

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CN1822798B (zh) * 2003-07-15 2012-02-08 百灵公司 用于齿缝空间清洁和用于治疗牙齿或牙龈的电动装置
CN111973308A (zh) * 2019-05-22 2020-11-24 舒美兴业股份有限公司 电动牙刷

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CN111973308A (zh) * 2019-05-22 2020-11-24 舒美兴业股份有限公司 电动牙刷
CN111973308B (zh) * 2019-05-22 2022-02-08 舒美兴业股份有限公司 电动牙刷
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Also Published As

Publication number Publication date
US5590434A (en) 1997-01-07
EP0691107A1 (en) 1996-01-10

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