CN100374091C - 一种电动牙刷 - Google Patents
一种电动牙刷 Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
- A61C17/349—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor with multiple brush bodies
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/222—Brush body details, e.g. the shape thereof or connection to handle
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
- A61C17/3409—Power-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
- A61C17/3436—Rotation around the axis perpendicular to the plane defined by the bristle holder
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
- A61C17/3409—Power-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
- A61C17/3445—Translation along the axis of the toothbrush handle
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
- A61C17/3409—Power-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
- A61C17/3454—Translation along the axis perpendicular of the axis of toothbrush handle and in the plane defined by the bristle holder
Abstract
一种电动牙刷置换头,把旋转摆动的普通圆形摆动或主毛簇块与次毛簇块结合在一起。次毛簇块可以旋转摆动或者顺着牙刷手柄方向前后线性摆动。次毛簇块可以具有一对并列板的形式,靠近圆形摆动块安装在置换头上。本发明还可以这样设置,次毛簇块具有若干刷毛列的形式,所述刷毛列安装成可沿正交手柄的方向作来回运动。次毛簇块通过传动连接机构与主毛簇块相连。
Description
技术领域
本发明涉及一种电动牙刷置换头,包括带有刷毛的摆动块。
背景技术
在现有技术领域中已知许多这样的牙刷。参考美国专利No.5,625,916,其涉及一种电动牙刷,包括使传动轴转动的马达驱动器。传动轴连接到牙刷头部的刷毛夹持件,传动轴的旋转运动导致刷毛夹持件可旋转地来回摆动。已经知道有其它方法可使安装在电动牙刷头部的刷毛夹持件产生摆动。
美国专利No.5,416,942介绍了一种电动牙刷,具有同轴支承在外壳的两组同心布置的刷毛。刷毛由连接到心轴的传动轴驱动,所述心轴弯曲在其端部形成两个倾斜的臂。每个臂位于各相应刷毛的狭槽。当传动轴旋转时,倾斜臂使各刷毛绕其轴沿相反方向转动。
PCT国际专利申请WO00/78244介绍的电动牙刷类似地包括两个同轴安装的第一和第二刷头,相互之间沿不同方向和/或以不同速度可旋转地摆动。该专利公开了两种不同的传动机构。一种传动机构包括线性往复运动致动器,两个连接杆安装在致动器上。连接杆用大体上为V形的单件金属线制成,各连接杆的一端安装在刷头的不同端部上。当致动器和连接杆来回线性运动时,连接杆的端部相互靠拢和分开而使刷头转动。在第二个实施例中,各刷头设有齿区,可与旋转摆动轴顶端的伞齿轮啮合,因此轴的旋转摆动通过伞齿轮传递给各齿区,从而使刷头可旋转地摆动。
美国专利No.5,836,030公开了一种相当复杂的具有两个刷毛夹持件的牙齿清洁装置。由于刷毛夹持件和驱动装置的连接杆的枢轴连接,一个毛刷夹持件可绕枢轴作往复运动。由于毛刷夹持件和驱动装置中驱动件的连接,另一个毛刷夹持件也可绕枢轴作往复运动。虽然两个毛刷夹持件相互靠近,但是其中一个毛刷夹持件的往复运动并不用来使另一个毛刷夹持件作往复运动。两个毛刷夹持件都是分别与驱动装置相连而摆动。
美国专利No.6,237,178公开了一种具有刷毛夹持件的牙刷,刷毛夹持件沿圆弧形路径往复转动。齿间刷毛夹持件沿纵向安装在所述刷毛夹持件外面。该专利显示齿间刷毛夹持件可正交于纵向轴线往复运动并与所述刷毛夹持件传动接合,因此当所述刷毛夹持件沿圆弧形路径往复运动时,齿间刷毛夹持件正交于纵向轴线作往复运动。然而,附图示出齿间刷毛夹持件具有平行于刷毛夹持件弧形边缘并局部围绕其延伸的弧形边缘。因此,对于较大的横向往复运动没有足够空间。
美国专利No.6,308,358公开了一种具有刷毛夹持件和齿间刷毛夹持件的牙刷。该专利显示出这些刷毛夹持件都沿环形路径绕枢轴转动,但是没有说明刷毛夹持件是如何驱动的。
美国专利No.3,242,516公开了一种牙刷,其具有一组中心刷毛和另外的在其两侧的刷毛组。中心刷毛组由传动机构驱动。中心刷毛组包括齿轮,可分别与另外两个刷毛组上的齿轮啮合,因此中心刷毛组的转动使另外两个刷毛组也转动。但是该专利没有提到如何使毛刷元件以摆动方式来回转动。
美国专利No.5,353,460公开了一种电动牙刷,其使用相当复杂的驱动装置,包括各种类型的齿轮和改进的轴杆结构,以使刷毛夹头旋转摆动。刷毛夹头与刷毛夹持件相连,因此刷毛夹持件也可旋转摆动。
美国专利No.5,504,959公开了一种电动牙刷,其中一对夹持刷毛束的旋转底座可旋转地安装在一对固定于滑板的销轴上。小齿轮固定在每个底座上而与夹持件的齿条接合。滑板安装在夹持件中并通过传动机构沿纵向运动。当滑板沿纵向运动时,小齿轮与齿条的接合使底座往复旋转运动,从而使刷毛束往复转动。
PCT国际专利申请No.WO 01/91603公开了一种具有多组刷毛簇的牙刷,刷毛簇可沿其角度方向作往复运动。
发明内容
本发明的一个目的是提供一种电动牙刷置换头,其除了具有普通电动牙刷置换头产品的清洁效率外,还能够具有清洁、抛光、刷白的作用。
本发明的另一个目的是为增加牙刷置换头的摆动毛簇块的清洁效率提供各种技术。
根据本发明,所述牙刷置换头包括安装在头部的主毛簇块。主毛簇块设置成能够来回摆动,而且最好是旋转摆动。头部包括次毛簇块,当主毛簇块来回摆动时可驱使次毛簇块来回摆动。
在本发明的一个实施例中,次毛簇块与主毛簇块相互连接,因此主毛簇块的摆动旋转使次毛簇块摆动旋转。
根据本发明的另一个实施例,次毛簇块包括若干个并列布置的板,这些板与主毛簇块相连,使得当主毛簇块摆动时,这些并列布置的板沿平行于牙刷手柄的方向线性摆动。
在本发明的还有一个实施例中,次毛簇块是在头部正交于手柄横向延伸的若干列杆。当主毛簇块摆动时,这些杆沿正交于手柄的方向在带毛簇的头部横向来回摆动。
附图说明
图1是根据本发明一个实施例的电动牙刷置换头的顶视图;
图2是图1所示头部的侧视立面图;
图3是图1-2所示头部的底视图;
图4-5是图1-3所示头部的端视图;
图6-7是图1-5所示头部的透视图,分别处于直立和倒转位置;
图8是采用图1-7所示头部的牙刷的剖视图;
图9是图1-8所示头部的放大的侧面剖视图;
图10是图1-9所示头部的传动机构的顶视图;
图10A是与图10类似的视图,示出了传动机构的改进形式;
图11是根据本发明另一个实施例的电动牙刷置换头的顶视平面图;
图12是图11所示头部的侧视图;
图13是图11-12所示头部的底视图;
图14是与图12类似的侧视图,其中头部是倒转的;
图15-16是图11-14所示头部的端视图;
图17-18是图11-16所示头部的透视图,分别处于直立和倒转位置;
图19-20是图11-18所示头部的传动机构的平面图,分别处于不同的工作相位;
图21是根据本发明还有一个实施例的电动牙刷置换头的顶视图;
图22是图21所示头部的侧视图;
图23是图22所示头部的底视图;
图24是与图22类似的视图,示出了倒转的头部;
图25-26是图21-24所示头部的端视图;
图27-28是图21-26所示头部的透视图,分别处于直立和倒转位置;
图29是图21-28所示电动牙刷置换头的变化的顶视图;
图30是图29所示头部的侧视图;
图31是图29-30所示头部的底视图;
图32是与图30类似的视图,但头部是倒转的;
图33-34是图29-32所示头部的端视图;
图35-36是图29-34所示头部的透视图,分别处于直立和倒转位置;
图37是图21-28所示电动牙刷置换头的另一变化的顶视图;
图38是图37所示头部的侧视图;
图39是图37-38所示头部的底视图;
图40是与图38类似的视图,但头部是倒转的;
图41-42是图37-40所示头部的端视图;
图43-44是图37-42所示头部的透视图,分别处于直立和倒转位置;
图45是图21-28所示电动牙刷置换头的另外一种变化的顶视图;
图46是图45所示头部的侧视图;
图47是图45-46所示头部的底视图;
图48是与图46类似的头部处于倒转位置的视图;
图49-50是图45-48所示头部的端视图;
图51-52是图45-50所示头部的透视图,分别处于直立和倒转位置;
图53是图21-52所示头部的传动机构的平面图,该传动机构处于某工作相位;
图54是沿图53的剖面54-54的断面视图;
图55是与图53类似的视图,示出了不同的工作相位;
图55A是与图55类似的视图,示出了改进的工作方式;和
图56是沿图55的剖面56-56的断面视图。
具体实施方式
图1-10涉及本发明的一个实施例,其中电动牙刷置换头10设有安装在牙刷28的替换臂16上的主毛簇块12和次毛簇块14,次毛簇块14位于手柄延伸部分18末端偏离主毛簇块的位置。每个毛簇块包括各种类型的刷毛或刷毛件。例如,在图1-2和6-7中,主毛簇块12具有若干以适当图案布置的刷毛。大体上成环形布置的外天然刷毛20围绕毛簇块12周边。一组内天然刷毛22大体上成环形图案与外刷毛20的环形布置同心设置。如图2和6所示,某些刷毛比其它刷毛短。
如附图所示,主毛簇块12和次毛簇块14分别具有大体上是圆形的断面形状。次毛簇块14位于主毛簇块12的外侧并具有比主毛簇块12小的尺寸。
次毛簇块14也包括许多刷毛。在所示实施例中,这些刷毛包括被橡胶刷毛或按摩件26相互隔开的四组天然刷毛簇24,橡胶刷毛或按摩件26具有与刷毛24相同的高度。
应当认识到,对主毛簇块12和次毛簇块14的刷毛所作的具体说明和介绍只是作为示例给出。实施本发明还可以通过相同或不同刷毛结构(如U形钉、IMT形等)和/或相同或不同的刷毛材料(如尼龙刷毛、螺旋刷毛、橡胶刷毛等)的各种组合。因此可以选择刷毛结构和刷毛材料的各种组合来实现特定的预期效果,比如使摆动毛簇头产生多种运动,以形成额外的口腔预防保健作用如增强牙齿清洁、抛光和/或白化效果。
还应当认识到头部10可以包括其它刷毛,比如在头部的非移动部分上与摆动毛簇块12、14上的刷毛分开的刷毛。因此,可以将三角形的橡胶刷毛或按摩件设置在毛簇块12和14之间的头部10上的相对部分。还应当认识到摆动毛簇块的刷毛可以包括天然刷毛或橡胶刷毛组合,也可以只包括天然刷毛或只包括橡胶刷毛。
应当认识到在此使用的术语“刷毛”包括具有实心构造的清洁件如橡胶按摩件或刺激件,而不只限于毛簇或天然刷毛。
图8-9示出了一种作为示例的使主毛簇块12摆动的传动结构。这种传动结构结合了美国专利No.5,625,916公开的传动方式,在此引用参考其全部内容。如图8所示,牙刷28具有空心外壳29,其中装有若干给马达32提供电力的电池30、30,可由通/断开关(未示出)来致动。马达32与接头34相连,接头34夹住传动轴36一端以使传动轴36转动。
如图9所示,主毛簇块12具有狭槽或开口38,传动轴36的偏置曲柄端40安装其中。当传动轴36转动时,转动的曲柄端40使主毛簇块12以前后摆动方式绕安装在替换臂16上的轴杆或支柱42转动。因此,传动轴36的360度旋转运动转换成主毛簇块12的前后摆动的旋转运动。
图8-9介绍和示出的传动机构类型,由于其简单性和有效性,是非常优选的传动机构类型。如图所示,传动轴36从马达32沿轴向延伸出来,直接装配到主毛簇块12。因此,主毛簇块12由从马达沿轴向延伸的轴杆驱动摆动,不需要任何中间齿轮等。在本申请中,术语“从马达沿轴向延伸至主毛簇块的传动轴的直接传动”用来指这样的传动机构,其不需要附加的复杂结构如齿轮等来使主毛簇块摆动。
图10示出了主毛簇块12和次毛簇块14之间的传动连接。如图所示,主毛簇块12包括设置在次毛簇块14的狭槽或切口46中的突出部或伸出部分44。因此,当主毛簇块12以旋转方式作前后往复运动时,突出部44使次毛簇块14产生类似的摆动。图9示出了安装在其支柱或轴杆48上的次毛簇块14,其中支柱或轴杆48固定在替换臂16上,以允许产生摆动的旋转运动。
应当认识到虽然图8-10示出主毛簇块12的摆动是由旋转传动轴36的曲柄端40引起的,但是也可以使用本技术领域中已知的其它类型的摆动传动机构,如齿轮、凸轮等。然而,这类传动机构并不是优选的。
类似地,虽然图9-10示出了优选的传动连接机构,通过延伸到切口46的突出部44实现了从主毛簇块到次毛簇块的传动连接,但是传动连接机构也可以由位于主毛簇块切口的次毛簇块的突出部构成。或者,也可以使用其它类型的传动传送机构或连接机构如连杆或凸轮。例如,图10A示出了跨主毛簇块12和次毛簇块14的销子45。销子45通过枢轴固定在每个毛簇块上,因此主毛簇块12的旋转摆动将传递给次毛簇块14,从而使次毛簇块14沿相反方向旋转摆动。另一种方法是,销子45刚性固定在一个毛簇块,或甚至与之整体形成,并通过枢轴安装在另一个毛簇块上。
主毛簇块12和次毛簇块14之间的这种传动连接的优点是,主毛簇块12只在有限的弧度上前后转动而不是在整个360度上转动,这种摆动或有限的转动传递给次毛簇块,而产生相同类型的有限旋转摆动。在图10所示实施例中,次毛簇块的摆动是通过单个传动连接件即安装在狭槽或切口46中的突出部44,而不是通过相互啮合的齿轮齿来实现的。在图10A的实施例中,传动连接件是销子45。
因此,图1-10中的实施例使用了牙刷手柄中传动装置,这种传动装置包括与主毛簇块12的传动连接,可使主毛簇块12在其轴杆42上来回摆动。当主毛簇块摆动时,主毛簇块12和次毛簇块14之间的传动传递连接机构,即突出部44和狭槽46或销子45,使次毛簇块14以摆动方式产生前后运动。
应当认识到在本发明的所有实施例中,次毛簇块还可以带有连接到另外一个或第三个毛簇块的传动连接机构。例如,次毛簇块和第三毛簇块可以使用与主次毛簇块之间的突出部及狭槽类似的连接机构,或者可以使用其它任何一种适当的传动连接机构。第三毛簇块还可以驱动另外的毛簇块等。毛簇块的数目由空间限制和实用性来确定。最好是只使用主毛簇块和次毛簇块。
本发明的优点是可以通过对现有类型的电动牙刷置换头作较少结构改进来实施。因此,可以改进替换臂的形状以容纳与圆形主毛簇块12相连的圆形次毛簇块14。使得能够对次置换头的形状进行简单改进而成为紧凑的置换头、标准置换头、完整置换头等,从而为消费者提供各种不同的尺寸/作用。
对具有圆形摆动块或主毛簇块的已知电动置换头产品的结构改变可以是修改替换臂16的形状以接受位于圆形摆动块12下面的附加毛簇板。圆形毛簇块12也需要作一些修改以接受附加板的连接点。其它结构修改将取决于不同刷毛结构置,包括消费者优选设计(即橡胶突出部等)。
图10示出主毛簇块12具有比次毛簇块14更大的尺寸。然而,图10A示出了两个毛簇块具有相同尺寸的本发明实施例。如果需要的话,次毛簇块可以大于主毛簇块。优选的是两个毛簇块具有相同的尺寸,因为这样可使两个毛簇块具有相同的结构。于是可以简化制造过程和降低生产成本。因此,主毛簇块的容纳传动轴36的端部40的狭槽38可作为次毛簇块的狭槽46以容纳突出部44。在两个毛簇块具有相同结构的情况下,次毛簇块可以带有不起作用的突出部。在使用其它类型的传动传递件如销子45的情况下,次毛簇块仍然可以设有与主毛簇块的狭槽38相同的不起作用的狭槽,于是两个毛簇块在装配时能够互换。
图11-20涉及本发明的另一个实施例,其中至少一个次毛簇块位于偏离主毛簇块的位置。如图11-18所示,置换头10A包括主毛簇块12和次毛簇块,所示次毛簇块具有安装在替换臂16上的一对板50、52的形式。如下面将介绍的,两个板50、52安装成可沿大体上平行于手柄延伸部分18的方向来回摆动。因此,这种运动与主毛簇块12的旋转摆动结合,使置换头除了具有普通电动牙刷置换头产品的清洁效率之外还可以有增加的清洁、抛光、白化作用。
与所介绍的置换头10一样,置换头10A也可以采用各种不同的刷毛结构和刷毛材料组合。在所示实施例中,主毛簇块12包括若干组由IMT结构的刷毛块56隔开的天然刷毛54。所有刷毛54具有相同的高度,该高度比刷毛56略高。板50、52包括两个纵向刷毛列,所述刷毛列包括天然刷毛58和橡胶突出部/刷毛60。每个板50、52上刷毛的高度逐渐减小以产生斜面效果。因此,板50上的刷毛在靠近手柄延伸部分18的末端较高而形成朝主毛簇块12的向下斜面。然而,板52上的刷毛却具有相反的斜面效果,其中最高的刷毛最接近主毛簇块12。板50、52中的刷毛除了高度逐渐减小之外,还可以朝手柄倾斜以及背向手柄倾斜,如图12中清楚所示。
图19-20示出了当主毛簇块12前后旋转摆动时可使板50、52顺着手柄延伸部分18的方向作线性往复运动的传动机构。如图19-20所示,传动连接机构位于主毛簇块12的外表面以及次毛簇块的外表面的下面,刷毛从所述外表面离开替换臂1 6向外延伸。与图8-10所示实施例一样,手柄18包括旋转传动轴36,其曲柄端40与主毛簇块12的狭槽38接合,因此传动轴36旋转使主毛簇块12绕其轴杆或支柱42转动。所以,传动机构最好是从马达延伸至主毛簇块的直接传动轴杆。
板50、52与摆动主毛簇块12相连,主毛簇块12的旋转运动可使板50、52沿平行于手柄延伸部分18的方向作往复运动。如图19-20所示,这种连接方式是通过连接每个板50、52与主毛簇块12的连杆62实现的。图19示出了处于中间或中央状态的板。图20示出了主毛簇块12沿反时针方向转动的状态。在图20中,曲柄端40偏移到右边。连杆62、62沿远离手柄延伸部分18的方向拉动板50,并沿朝着手柄延伸部分的方向推动板52。或者,可以这样的方式安装连杆,使两个板50、52能够沿相同的方向同时运动。如果需要的话,板50、52可以安装在替换臂16的轨道中以确保板的运动是往复直线运动,从而避免任何侧向移动或旋转。
为了使所需空间减到最小,靠近主毛簇块12布置的每个板50、52的外缘53是弧形,其弧线大体上平行于圆形主毛簇块12的弧度。
虽然图11-20示出了具有两个并列板形式的次毛簇块,但是本发明也可以通过其它方式来实施,在这些变化方式中次毛簇块可平行手柄延伸部分18的纵向轴线作上下运动。因此,最简单的形式可以只有单个板,或者可以有三个或更多个并列布置板,其中一些板或全部板沿相同的方向或不同的方向运动。例如,两个或更多个相邻的板可以沿同一方向运动。或者,每个板相对其相邻的板沿相反方向运动。在每种变化中,每块板和摆动主毛簇块之间应设有必需的连接点,使板及其向外延伸的刷毛产生线性往复运动。
图21-56示出了本发明的第三种变化,其中位于偏离主毛簇块位置的次毛簇块在主毛簇块以摆动方式旋转时产生往复运动。在图21-56所示的各实施例中,摆动或往复运动是沿正交手柄延伸部分18的纵向轴线方向的左右运动。图21-52示出了用于本发明这一实施例的各种示例性的刷毛结构组合。其中一种刷毛结构组合在图21-28中示出。如图所示,置换头包括主毛簇块12和次毛簇块,其中次毛簇块由横向平行布置的杆64、66、68、70构成(杆64、66、68、70实际上位于表面之下,杆上的刷毛通过替换臂16中的狭缝朝外延伸)。图21-28示出了具有变化的刷毛组合的置换头10B。如图所示,一组刺激物72布置在替换臂16边缘周围,位于作横向往复运动的刷毛杆64、66、68、70的外面。刷毛杆上的刷毛74的高度逐渐减小以产生斜面效果。这种逐渐减小可以是均匀的,意味着每列中的刷毛沿横向置换头10B的相同方向逐渐减小,或者这种逐渐减小可以各列交替进行,或者这种逐渐减小可以使得杆68、70上的刷毛74沿同一方向逐渐减小,而与杆64、66上刷毛逐渐减小的方向相反(图43还示出了不带外围刺激物72的成斜面的刷毛74)。
在图29-36所示的实施例中,置换头10C也包括一组设置在外围的刺激物72。但是,横向摆动杆64、66、68和70上的刷毛76全都具有相同的高度而不是斜面的。
图37-44示出了一种变化,其中置换头10D的各横向摆动杆64、66、68、70的刷毛74的高度逐渐减小以产生斜面效果,其方式与所介绍的置换头10B一样。然而,与置换头10B不同的是,置换头10D省去了设置在外围的刺激物。
图45-52示出了与置换头10C类似的置换头10E,其刷毛76具有相同的高度,但是这种置换头不包括任何围绕刷毛76的刺激物。
如图所示,特别是在图21、29、37、43、45和51中,刷毛74或76通过设在替换臂中的狭槽71从替换臂16向外延伸,其中成排的刷毛安装在实际上位于替换臂16的外表面下面的杆上。
图53-56示出了一种使横向布置的杆64、66、68和70在主毛簇块12作旋转往复运动时产生前后往复运动的技术。如图所示,如前面所介绍的,传动轴36的曲柄端40安装在主毛簇块12的狭槽38中,使主毛簇块12在其支柱或轴杆42上旋转摆动。因此这种包括传动轴36及其传动连接机构38、40的传动装置可使主毛簇块12前后摆动。主毛簇块12和次毛簇块之间由杆64、66、68及70构成的传动传递连接是通过使用安装在传动轴36上的凸轮78、80、82、84来实现的。图54和56示出了当传动轴36转动时,与杆68相连的凸轮82如何使杆横向移动。如图所示,替换臂16包括凹坑88,其尺寸足以使杆能够沿正交于传动轴36以及手柄延伸部分18的纵向轴线的方向横向前后移动。凸轮82设置在杆68的狭槽或切口86中。如图54所示,凸轮82处于其中间状态,其中凸轮位于传动轴36的上方。图54还用虚线示出了转动180度后的凸轮,这将使杆68仍然处于其中间状态。
图56用实线示出了从中间状态转动90度后的凸轮82,这将使杆68向右偏移到最右侧的位置。图56还用虚线示出了当凸轮82从图56所示位置转动180度时凸轮以及狭槽或切口86的位置,这将使杆68移动到最左边的位置。因此,当传动轴36旋转360度时,这种旋转运动由曲柄端40传递而使主毛簇块12产生旋转摆动,而转动的凸轮82使杆68产生横向摆动。
凸轮82和凸轮78相互一致地安装在传动轴36上。因此杆64和68相互一致地沿同一方向运动。如图55所示,凸轮80和84设计成与凸轮78和82反相安装,因此当杆64和68在其凸轮78和82的作用下向右移动时,杆66和70在其凸轮80和84的作用下向左移动。
图55示出杆与其相邻杆沿相反方向运动。不过,图55A示出了一种变化,其中凸轮设置成可使相邻杆对沿同一方向移动。因此,如图55A所示,杆64和66沿同一方向移动,而相邻杆68、70沿相反方向移动。
如果需要的话,本发明可以只用沿正交于手柄18的纵向轴线方向作横向往复运动的杆来实施。不过,在本发明的优选实施例中,最好使用多组成对的杆(如图53、55和55A所示)。每组杆可以是交替布置的杆(如图55所示),或者可以是相邻杆(如图55A所示)。不过,通过改变传动轴36上凸轮的位置和形状,本发明可使用更多或更少数目的成对布置杆或独立运动杆来实施。比如,可以将总数为六个的往复运动杆设置成两组,每组具有三个交替布置杆,或者可以设置成三组相邻杆。不过,这种构造方式需要有较大置换头尺寸。凸轮可以设置在传动轴36上,如每个凸轮78、80、82和84相互之间以不同角度方向设置在传动轴36,于是每个杆的摆动方式将互不相同。
因此,实施图21-56中的各实施例可以通过改进传动轴36以产生凸轮作用来驱动一系列水平排列的刷毛。刷毛列64、66、68、70最好连接成两个分组64、68和66、70,这两个分组在传动轴36旋转时沿相反方向运动。该动作与圆形摆动块12的结合可产生足够的运动,形成额外的口腔预防保健作用如更有效的清洁、牙齿抛光和/或白齿效果。还可以利用上述不同的刷毛结构和刷毛材料来加强额外的运动。此外,通过将橡胶突出部72布置在刷毛周围,除了由额外的刷毛列提供的作用之外,还可以进行牙龈按摩。
实现这种新功能所必须进行的结构改进包括改进替换臂的形状以接受位于圆形摆动块下面的附加毛簇块或杆。还可以修改传动轴以产生凸轮作用来驱动附加的毛簇块。其它结构修改将取决于不同刷毛结构,包括消费者优选的设计。
在使用斜面刷毛74的情况下,除了刷毛高度逐渐减小之外,刷毛与相邻列的刷毛还可以沿相同方向倾斜或沿相反方向倾斜。或者,这些刷毛列的某一列可以包括斜面刷毛,而相邻列带有高度相等的刷毛。还有,除了一列使用独立刷毛簇之外,还可以在一列或多列使用单个清洁元件如细长的橡胶突出部。
本发明已经介绍了三种不同的实施例,其中除了主毛簇块的摆动之外,还可以有旋转摆动或顺着手柄纵向轴线方向的线性摆动,或沿正交于手柄纵向轴线方向的线性摆动。然而,本发明还可以将这些摆动形式组合起来实施。因此,如图53-56所示的左右摆动型可以通过使用传动轴上的凸轮来实现,而主毛簇块还可以如其它实施例那样旋转和/或纵向线性摆动,或者以任何一种组合方式摆动。实施本发明还可以通过使主毛簇块不是旋转摆动而是平行于手柄来回摆动或左右摆动,尽管旋转摆动是优选的。还应当认识到虽然本发明已经介绍了次毛簇块摆动的优选方式,但是在本发明的精神之内可以使用其它类型的传动机构。
Claims (9)
1.一种电动牙刷,其具有:手柄;安装在所述手柄上的头部;安装在所述头部中的主毛簇块,所述主毛簇块具有从所述头部向外延伸的外露刷毛;安装在所述头部中的轴杆,所述主毛簇块可旋转地安装在所述轴杆上;安装在所述头部中且离开所述主毛簇块的次毛簇块,所述次毛簇块具有从所述头部向外延伸的外露刷毛;所述手柄中的传动装置,所述传动装置包括连接到所述主毛簇块上的传动连接机构,用于使所述主毛簇块沿旋转方向来回摆动;以及位于所述主毛簇块与所述次毛簇块之间的传动传递连接机构,以便在所述主毛簇块沿旋转方向摆动的同时,使所述次毛簇块沿线性方向以摆动的方式来回运动,其中,所述次毛簇块包括至少两个并列布置的板。
2.根据权利要求1所述的牙刷,其特征在于,连接到所述主毛簇块上的所述传动连接机构具有从马达沿轴向延伸至所述主毛簇块的轴的直接传动的形式。
3.根据权利要求1所述的牙刷,其特征在于,所述主毛簇块是断面形状大体为圆形的圆形毛簇块,并且所述传动传递连接机构使所述板沿着平行于所述手柄的方向作线性往复运动。
4.根据权利要求1所述的牙刷,其特征在于,所述传动传递连接机构包括连接每个所述板与所述主毛簇块的连杆。
5.根据权利要求1所述的牙刷,其特征在于,所述板位于所述主毛簇块和所述手柄之间。
6.根据权利要求1所述的牙刷,其特征在于,每个所述板包括弧形边缘,其设置成靠近并平行于所述主毛簇块的弯曲边缘部分。
7.根据权利要求1所述的牙刷,其特征在于,所述主毛簇块和所述次毛簇块中的至少一个毛簇块上的一些所述刷毛与所述至少一个毛簇块上的其它刷毛相比,具有不同的构造并用不同的材料制成。
8.根据权利要求1所述的牙刷,其特征在于,其中一个所述板上的所述刷毛成斜面,并平行于另一个所述板上的所述刷毛而沿相反的方向倾斜。
9.根据权利要求1所述的牙刷,其特征在于,每个所述板上的所述刷毛布置成列并具有倾斜高度,并且每个板的倾斜高度与其相邻板相比是沿相反的方向倾斜的。
Applications Claiming Priority (2)
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US10/066,459 | 2002-01-31 | ||
US10/066,459 US20030140437A1 (en) | 2002-01-31 | 2002-01-31 | Powered toothbrush |
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CN1642495A CN1642495A (zh) | 2005-07-20 |
CN100374091C true CN100374091C (zh) | 2008-03-12 |
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CNB038070375A Expired - Fee Related CN100374091C (zh) | 2002-01-31 | 2003-01-30 | 一种电动牙刷 |
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US (5) | US20030140437A1 (zh) |
EP (3) | EP2092910B1 (zh) |
KR (2) | KR20040075966A (zh) |
CN (1) | CN100374091C (zh) |
AR (1) | AR038241A1 (zh) |
AT (3) | ATE511813T1 (zh) |
AU (1) | AU2003207756B2 (zh) |
BR (1) | BR0307358B1 (zh) |
CA (2) | CA2759094C (zh) |
CO (2) | CO5600992A2 (zh) |
DE (1) | DE60327304D1 (zh) |
ES (3) | ES2370194T3 (zh) |
HK (3) | HK1070264A1 (zh) |
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PL (1) | PL370421A1 (zh) |
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2002
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2003
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- 2003-01-30 TW TW092102088A patent/TWI298631B/zh not_active IP Right Cessation
- 2003-01-30 AT AT09158250T patent/ATE511813T1/de not_active IP Right Cessation
- 2003-01-30 MX MXPA04007373A patent/MXPA04007373A/es active IP Right Grant
- 2003-01-30 EP EP03705994A patent/EP1474066B1/en not_active Expired - Lifetime
- 2003-01-30 AT AT09158251T patent/ATE518495T1/de not_active IP Right Cessation
- 2003-01-30 KR KR10-2004-7011725A patent/KR20040075966A/ko not_active Application Discontinuation
- 2003-01-30 CN CNB038070375A patent/CN100374091C/zh not_active Expired - Fee Related
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- 2003-01-30 KR KR1020047011724A patent/KR100956461B1/ko not_active IP Right Cessation
- 2003-01-30 UY UY27631A patent/UY27631A1/es not_active Application Discontinuation
- 2003-01-30 EP EP09158251A patent/EP2090266B1/en not_active Expired - Lifetime
- 2003-01-30 WO PCT/US2003/002811 patent/WO2003063723A1/en not_active Application Discontinuation
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- 2003-01-30 BR BRPI0307358-0A patent/BR0307358B1/pt not_active IP Right Cessation
- 2003-01-31 PA PA20038564701A patent/PA8564701A1/es unknown
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- 2004-08-26 CO CO04083714A patent/CO5600992A2/es active IP Right Grant
- 2004-08-26 CO CO04083712A patent/CO5600991A2/es not_active Application Discontinuation
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- 2004-10-22 US US10/970,722 patent/US7428766B2/en not_active Expired - Fee Related
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2008
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