CN102327155B - 复杂运动牙刷 - Google Patents
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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
- A61C17/3472—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 with combined movements of the brush body
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
- A46B9/025—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups the bristles or the tufts being arranged in an angled position relative to each other
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
- A46B9/04—Arranged like in or for toothbrushes
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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
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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
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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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Abstract
本申请公开了一种具有转轴的电动牙刷,所述转轴的远端优选具有配合进刷毛固定座的槽内的凸轮。刷毛固定座安装在刷头中用于转动。当转轴旋转时,凸轮做圆周运动并与所述槽进行驱动配合,使刷毛固定座在第一刷牙运动的方向上进行振动。转轴还驱动第二刷毛固定座进行第二刷牙运动。第二刷毛固定座通过与转轴远端的一部分和/或与转轴上的一个或多个附加的凸轮和凸轮部分配合而得到驱动。
Description
本申请是基于申请人于2005年11月23日提交的申请号为“200510128665.1”、发明名称为“复杂运动牙刷”的第一分案申请的再次分案申请;该第一分案申请是基于申请人于2002年11月6日提交申请号为“02802706.x”、发明名称为“复杂运动牙刷”的原申请的分案申请。
技术领域
本发明涉及牙刷技术。
背景技术
本发明特别涉及电动牙刷技术,其中刷毛布置成相对于刷柄相对运动。已有多种这种牙刷的实例,其中包括1939年美国专利No.2,215,031公开的旋转驱动刷毛的电动牙刷。在美国专利No.4,156,620公开了类似的旋转驱动刷毛的电动牙刷,美国专利No.4,845,795说明了如何将旋转电机的驱动转换为相应的往复线性运动,以驱动刷毛做顺时针和反时针转动;美国专利No.3,577,579公开了一种牙刷,其中刷头相对于刷柄相对运动,使装在刷头上的所有刷毛一起相对于刷柄做侧向、前向和后向运动。美国专利No.5,625,916公开了一种具有刷毛固定座的牙刷,其中刷毛固定座被驱动绕转轴以旋转的方式振动。
上述文献中公开的驱动机构和牙刷运动方式有相对较简单的,也有相对较复杂的。所公开的最为复杂的牙刷用于提供精巧的复合刷牙动作。虽然所提供精巧的刷牙运动是有益的,但所公开的赖以实现这些动作的手段过于复杂并包括过多的运动部件,在许多应用场合不具有实用性。而所公开的较简单的牙刷只能进行单一的刷牙动作,虽然便于生产,但其单一的刷牙动作不能适应某些场合的需要。例如,不能满足齿间清洁的需要。
因此,需要提供一种制作简单、运动部件少、又能进行多种清洁和刷牙动作的牙刷,以实现多种洁牙任务。
发明内容
本发明新型牙刷的一个实施例包括:位于牙刷一端的刷柄部分;位于牙刷另一端的刷头部分;从刷柄部分延伸到刷头部分并具有第一纵向中心轴的转轴;枢轴安装在刷头部分并与转轴最远端相连的第一刷毛固定座,转轴的最远端容纳在第一刷毛固定座的槽内用于驱动第一刷毛固定座绕枢轴振动;以及可动地安装刷头部分并由位于转轴上的凸轮驱动配合的第二刷毛固定座。
本发明牙刷另一个实施例包括转轴。所述转轴包括第一凸轮和第二凸轮。所述牙刷中还包括用于驱动转轴转动的电机。第一刷部与第一凸轮可操作地相连以便进行第一运动。第二刷部与第一刷部纵向分开,并与第二凸轮单独相连以便驱动第二刷部进行第二运动,所述第二运动不同于第一运动。
本发明电动牙刷第三个实施例包括转轴。所述转轴包括凸轮。电机***作用于驱动转轴转动。第一刷部与所述凸轮可操作地相连用于进行第一运动。第二刷部与第一刷部纵向分离,并与凸轮单独可操作地相连用于进行第二运动,所述第二运动不同于第一运动。
例如,第二刷部能够包括位于其主体内并横切其纵轴设置的枢轴部分,该枢轴部分可操作的将第二刷部与牙刷的头部枢轴相连。第二刷部的底面具有凸轮接触面。所述凸轮接触面可操作的坐在凸轮表面上,从而使第二刷部可绕枢轴部分转动。
本发明的一个优点在于由第一刷毛固定座和第二刷毛固定座分别提供不同的互补刷牙运动。
本发明的另一个优点在于在一种简单和经济的牙刷中不同和互补的洁齿运动。
本领域技术人员通过阅读和理解以下的详细说明,将更加明晰本发明的上述及其他特色和优点。
附图说明
本发明可采用各种不同的部件及部件布置方式和采用多种程序及程序安排。附图仅为说明优选实施例,而不是限定本发明的范围。
图1为牙刷的仰视剖视图;
图2图1中牙刷的一部分的侧向剖视图;
图3为图2的仰视剖视图;
图4为图2的相对侧视图;
图5、6和7分别与图2、3和4相同,分别是不同的尺寸和不同的牙刷;
图8为表明具有第二刷毛固定座的强化牙刷的局部剖视仰视图;
图9为沿图8所示刷头第一实施例中A-A线的剖视图;
图9A为第一实施例的部分侧向剖视图;
图10为沿图8所示刷头部第二实施例中A-A线的剖视图;
图11为沿图8所示刷头第三实施例中A-A线的剖视图;
图12为沿图8所示刷头第四实施例中B-B线的部分剖视图;
图13为沿图8所示刷头第五实施例中B-B线的部分剖视图;
图14为沿图8所示刷头第五实施例中B-B线的部分剖视图,表明轴已转动到与图13所示不同的位置;
图15为沿图8所示刷头第六实施例中B-B线的部分剖视图;
图16为沿图8所示刷头第七实施例中B-B线的部分剖视图;
图17为牙刷第九实施例中刷头的仰视图;
图18为图8所示刷头第九实施例沿B-B线的部分剖视图;
图19为图8所示刷头第十实施例沿B-B线的部分剖视图;
图20为具有第一示例替换刷毛布置的牙刷侧视图;
图21为沿图8中D-D线的端面剖视图,表明刷毛布置的第二示例;
图22为沿图8中B-B线的部分剖视图,表明具有不同凸轮设计的第五实施例的第二种实施方式。
具体实施方式
参阅附图,图1所示牙刷包括:位于牙刷第一端的刷柄10、位于牙刷第二端部的刷头11、延伸在上述两者之间的颈杆9、从所述刷柄延伸到所述刷头的转轴12、以及大致为圆形的刷毛固定座13,所述刷毛固定座13具有多个埋置其中并由许多刷毛组成的刷毛簇8。刷柄提供了用于固定电机14和两节电池15和16的腔室,也可用可充电电源来取代电池15和16。还配置有联轴器17,用来夹持转轴12的一端并允许将转轴抽出用于下面将要描述的清洁或替换。
在图2中更可清楚得看到,刷头11支撑支杆18,支杆18为刷毛固定座13提供了转动或摆动枢轴40。图2中示出的刷毛19仅为说明。转轴12具有一体形成的最远端20,其位置偏离转轴的纵向中心轴线21。最远端20配合进刷毛固定座13侧面上的槽22内(参见图3)。需要指出的是,最远端20指向第一轴线21和支杆18的枢轴40的交点。在一个实施例中,支杆18的配置使枢轴40与转轴的纵向中心轴线21相互垂直。枢轴40与刷毛19的延伸方向相互平行。上述配置为优选配置,也可按其它方式来配置支杆18。例如,可使支杆18成角度配置,使枢轴40不与转轴的纵轴21垂直,而是在两者之间形成锐角,以便提供绕枢轴40的摆动或转动动作。当转轴12在电机14的驱动下旋转时,最远端20围绕转轴12做圆周运动,它与槽22的驱动配合使得刷毛固定座13围绕其枢轴振动或摆动。这样,最远端20可以被看作凸轮或轮齿。振动为来回移动或由一侧运动到另一侧,摆动为在两点间往复运动。凸轮为决定随从件运动的成型部件或部件的一部分。如图3所示,槽22的端部是封闭的,它在相邻一对刷毛孔之间从刷毛固定座的外周边向内径向延伸,其延伸距离小于到刷毛固定座中心的距离。这样,刷毛固定座13可绕支杆18的中心枢轴运动,摆动或前后转动。枢轴运动是指在枢轴上或好像在枢轴上的转动,转动是指绕一个中心或轴旋转。这种运动提供了刷头11和刷毛19之间的第一相对运动,并且有利于有效地清洁牙齿。槽22的宽度最好与最远端20的直径大致相等,中间的间隙应尽量小,以降低使用时的噪音。
电机14的转速最好为每分钟6000转。需要时,也可使电机以其它的转速运转或以两种或两种以上的速度运转,这可由用户选择决定。图1示出了一种牙刷,其中刷毛固定座13振动、摆动或转动30度角。在图2中,所述角度为35度,在图5中为15度。上述结构具有下述优点:通过采用不同的转轴12可选择和决定转动的角度,而对所有不同的角度均可利用同样的刷毛固定座。
每个刷毛固定座13可设置一个以上的槽22,如图3所示,所述槽22相对设置以取得更好的平衡,或在使用中某一槽磨损或刷毛出现不平衡磨损时可换用其它的槽。换言之,刷毛固定座13能够设置在两个或更多个转动位置。刷毛固定座13最好能便于从刷头11上拆下,例如通过弹簧夹持到支杆18上。这样,有助于将其放在卫生箱内保存并对其进行更好的清洗,需要时也便于转轴12的拆卸和更换。
所述转轴12最好一体地形成如图所示的单个长度地细杆形状。但也可使最远端或凸轮20单独形成,或将其设置和固定到转轴的直端部分或其它部位。这样的单独部分可以为具有中心轴线和偏离中心的驱动杆的牙刷,该中心轴线与转轴的中心轴线21一致。此时,驱动支杆取代最远端或凸轮20的位置和作用。这样,驱动支杆和槽22形成转轴和刷毛固定座13间的驱动配合,从而驱动支杆可被看作是转轴的最远端。
在本发明的某些实施例中,虽然一般不太方便但也可使刷毛固定座13铰连地枢接在一侧,例如与转轴相对的一侧。在这种情况下,装在铰接枢轴附近的刷毛将不会运动得像转轴侧刷毛那样大,但仍会充分地振动。
不论是进行铰接或枢接转动,刷毛固定座13都不必是圆形的。然而,一般希望刷毛固定座13是圆形的,使得在需要时便于改变其转动位置,如上所述。虽然上述的转轴配置是优选的,但本发明也可采用其他的转轴配置方式。例如,可采用美国专利NO.5,732,432中所述的配置来调节使用中的转轴错位和机械应力,该专利在此并入作为参考。另外,刷头11适合采用易于从刷柄10上拆卸的形式。为此,可在转轴与刷头之间采用本技术领域熟知的连接手段。例如,刷头和刷柄可包括用于配合槽和凸起和/或锁定或紧固片和凹槽等。转轴也可分成两个部分,每个部分都包括连接元件。例如,连接可通过键配置实现。例如,连接元件可以包括附加在各个轴端部的外内配合花键。此外,槽22也可用美国专利NO.5,784,743中所述的摆板代替,该专利在此并入作为参考。
现参阅图8-18,强化电动牙刷810的实施例包括与上述刷毛固定座13相似的第一刷毛固定座814。强化牙刷810具有刷头816和主体或刷柄817。当然,强化牙刷中还包括电机819和用于给电机供电的电池。刷头816具有纵轴818。第一刷毛固定座814在图中示为圆形,但也可采用其它形状,上述各种形式均在本发明的范围之内。第一刷毛固定座814包括至少一个如上所述(参阅图3)的槽,用于接受图1-7中所述驱动轴820的最远端或凸轮。如上所述,驱动轴820的最远端(参见图3)弯折或偏离驱动轴820的纵向中心轴线21(见图3)。电机819驱动转轴820旋转。简言之,就转轴820相对第一刷毛固定座814的结构和操作来说,强化牙刷810与图1-7所述牙刷类似。但是,强化牙刷810的实施例中还包括位于第一刷毛固定座附近的诸如第二刷毛固定座822的第二刷毛固定座。第二刷毛固定座最好直接与第一刷毛固定座相邻,但也可在第一和第二刷毛固定座间存在间隙。此外,在可移动的第一刷毛固定座和第二刷毛固定座之间的间隙内可以填充静止或固定的刷毛,这些刷毛嵌入第三刷毛固定座(未示出),第三刷毛固定座构成刷头的一部分。在许多强化电动牙刷的实施例中,所述第二刷毛固定座可移动,并单独地与诸如驱动轴820的驱动轴相连并由其单独地驱动。可移动的第二刷毛固定座的运动方向和方式与参阅图1-7中所述的在特定实施例中使用的转动或铰连枢轴振动的方向和方式不同。
例如,参阅图9,第二刷毛固定座910可动地安装在刷头16的槽912内,并被包括在驱动轴918上的偏心凸轮914单独地驱动,以便在与纵轴818基本上垂直的方向上进行振动,一侧到一侧的运动。凸轮914及下述的其他凸轮包括转轴918内的一个或更多个弯曲部分,例如如图9A所示,或如下述其它图12、13和15所示的实施例。凸轮914也可为安装在转轴918上的独立部件,其通过本领域熟知的粘结,压或咬合配合、共注模或其它机械或化学手段连接到轴918上。驱动轴最好由轴支架920支撑。凸轮随动件922悬挂在第二刷毛固定座910的底面924,并与第二刷毛固定座的纵轴926偏离。当强化牙刷810的电机819驱动转轴918转动时,凸轮914与凸轮随动件922的凸轮接触面928接触并对凸轮随动件922进行驱动,从而使第二刷毛固定座910朝向强化牙刷810的一侧930运动并远离刷头816的纵轴818。随着转轴918的继续运转,凸轮914将与凸轮随动件922脱离配合。位于刷头816的壁和凸轮随动件的第二表面之间的诸如弹簧934的弹性偏压部件推动凸轮随动件922,从而使第二刷毛固定座回到刷头816的纵轴818。这种往复或一侧到另一侧的运动重复进行(随着转轴918的不断转动),从而提供了与由第一刷毛固定座814所提供的运动不同并与其互补的清扫或刷洗运动。第二刷毛固定座910的频率和/或冲程可通过改变弹簧的结构以及凸轮914及其随动件922的位置和/或改变尺寸来进行调节。例如,使凸轮随动件922更接近轴线926将会缩短凸轮随动件922的冲程,或者通过设置强度大的弹簧或采用一个以上的弹簧来增加第二刷毛固定座910的返回速率。或者,也可使凸轮随动件922与第二刷毛固定座910的底面924形成锐角,或第一表面设置为与图9所示的平面表面形状相对的精确的曲线形状或其它复杂的形状。
参阅图10,在强化牙刷810的第二实施例中,第二刷毛固定座1010可动地安装在刷头816的槽1012内,并可被驱动轴1018上的偏心凸轮1016单独地驱动,以进行绕枢轴或铰链1014的振动、摆动或枢轴运动。凸轮1016可包括转轴1018内的一个或多个弯曲部分,也可为前述的独立部件。驱动轴最好由轴支架1020进行支撑。凸轮接触面1022位于第二刷毛固定座1010的底面。当强化牙刷810的电机819驱动转轴1018转动时,凸轮1016与凸轮接触面1022接触,对第二刷毛固定座1010进行驱动或推动,使第二刷毛固定座绕铰链或枢轴1014振动或枢轴转动。随着转轴1018的继续运转,凸轮1016将与凸轮接触面1022脱离配合。在使用中,由于凸轮1016与凸轮接触面1022的接触,使第二刷毛固定座1010的刷毛以较大的力量压在使用者的牙齿上。最好能使第二刷毛固定座1010的刷毛压入使用者的齿间,以达到更好的清洁和护齿效果。当凸轮与接触面脱离时,压靠在使用者牙齿上的刷毛使第二刷毛固定座离开使用者的牙齿。当这种摆动或枢轴运动重复进行(随着转轴1018的不断转动),能够提供与第一刷毛固定座814所提供的运动不同并与其互补的刷洗运动。
参阅图11,在强化牙刷810的第三实施例中,第二刷毛固定座1110可动地安装在刷头816的槽1112内,并被驱动轴1118上的凸轮1116单独驱动,从而在槽1112内进行振动、升降或垂直脉动(即在垂直于纵轴1114和大体平行于第二刷毛固定座1110表面1115的方向上运动,如图11所示)。驱动轴最好由轴支架1120进行支撑。凸轮1116可为轴1118上的一个或多个弯曲部分,也可作为上述的独立部件进行配置。凸轮接触面1122位于第二刷毛固定座1110的底面。当强化牙刷810的电机819(见图8)驱动转轴1118转动时,凸轮1116与凸轮接触面1122接触,并驱动或升降第二刷毛固定座1110进行振动、升降或垂直脉动,从而使第二刷毛固定座在远离刷头816和朝向牙刷使用者牙齿(未示出)方向上进行升降或脉动运动。随着转轴1118的继续运转,凸轮1116将与凸轮接触面1122脱离配合。在使用中,由于凸轮1116与凸轮接触面1122的接触,第二刷毛固定座1110上的刷毛以不同程度的压力压在使用者的牙齿上。最好使刷毛固定座1110的刷毛被推入齿间以获得良好的洁齿效果。当凸轮与凸轮接触面1122脱离时,压靠在牙齿上的刷毛推动第二刷毛固定座离开牙齿并返回到刷头816。这种升降或垂直脉动运动重复进行(随着转轴1118的不断转动),能够提供与第一刷毛固定座814所提供的运动不同并与其互补的刷洗运动。
参阅图12,在强化牙刷810的第四实施例中,第二刷毛固定座1210可动地安装在刷头816的槽(未示出,但与图9所示的槽912相似)内,并可被包括在驱动轴1218上的凸轮1216单独驱动以便在槽内进行往复、平移或纵向运动。驱动轴最好由轴支架1217进行支撑。轴支架包含C或U形部分(未示出),它们用于可操作地接纳转轴并咬合在转轴周围。也可采用本领域所知的其它手段对转轴提供支撑。凸轮1216可以是成型凸缘,其具有偏心结构并放置或注模在转轴1218之上并紧固于其上。在一个实施例中,凸轮1216包括一对锐角表面1219和1220,它们向同一方向倾斜同样的角度,但它们分别配置在凸轮1216的相对两端。需要时可改变它们的倾斜的方向和角度,以改变第二刷毛固定座1210的冲程和频率。第一和第二凸轮随动件1222和1226悬挂于第二刷毛固定座1210的底面。凸轮随动件1222和1226与第二刷毛固定座的横轴1230偏离或间隔开。凸轮随动件1222、1226跨骑和/或夹持凸轮1216,使成角度表面1219和1220滑动配合凸轮随动件1222和1226的自由端。当强化牙刷810的电机819(见图8)驱动转轴1218转动时,凸轮1216的第一锐角面1220与第一凸轮随动件12222的表面接触并驱动凸轮随动件,从而使第二刷毛固定座1210沿刷头816的纵轴818离开第一刷毛固定座814。随着转轴1218的继续运转,凸轮1216将与第一凸轮随动件1222脱离配合。凸轮1216的第二锐角面1219随之与第二凸轮随动件1226的表面接触并驱动第二凸轮随动件1226,从而使第二刷毛固定座1210朝着第一刷毛固定座814返回。这种往复运动重复进行(随着转轴1218的不断转动),能够提供与第一刷毛固定座814所提供的运动不同并与其互补的刷洗运动。
参阅图13和14,在强化牙刷810的第五实施例中,第二刷毛固定座1310可动地安装在刷头816的槽(未示出,但与图9所示的槽912相似)内,并可被驱动轴1318上的凸轮1316单独驱动,以便进行往复或平移,纵向运动。驱动轴最好由轴支架1317进行支撑。轴支架包括C或U形部分(未示出),用于可操作地接纳转轴并咬合在转轴周围。也可采用本领域所知的其它将轴固定在支架上的手段。凸轮1316为正弦曲线形或曲线形,其特性在于它具有转轴1318内的一个或多个相邻拱形弯曲部分1319和1320。拱形弯曲部分1319和1320的拱顶1321分别设置在驱动轴1318的相对两侧。凸轮随动件1322悬挂在第二刷毛固定座1310的底面1323,并配置在凸轮1316的拱顶1321之间。当强化牙刷810的电机819驱动轴1318旋转时,凸轮1316的第一表面1325与凸轮随动件1322的第一表面1324产生接触并驱动凸轮随动件1322,从而使第二刷毛固定座1310沿刷头816的纵轴818方向离开第一刷毛固定座。随着轴918的继续运转,凸轮1316的第一表面1325到达拱顶1321并与第一凸轮随动件表面1324脱离配合。然后,凸轮1316的第二表面1326开始与凸轮随动件1322的第二表面接触并驱动凸轮随动件1322,从而使第二刷毛固定座1310向第一刷毛固定座814返回。随着这种往复运动重复进行(随着轴918的不断转动),能够提供与第一刷毛固定座814所提供的运动不同并与其互补的刷洗运动。往复运动的频率或冲程可通过改变拱顶间的距离和/或改变拱顶的幅度或高度来进行调节。
参阅图15,在强化牙刷810的第六实施例中,第二刷毛固定座1508通过枢轴1510可动地安装在刷头816上,所述枢轴可设置为销或铰链而安装在第二刷毛固定座1508中心横轴上。在一个实施例中,第二刷毛固定座1508绕销枢轴转动,该销锚固在牙刷颈部或刷头816的侧壁上并位于第二刷毛固定座1508的中点。第二刷毛固定座1508可被驱动轴1518上的第一凸轮结构1512和第二凸轮结构1514单独驱动进行振动、摆动,上下晃动或摇摆。驱动轴最好由轴支架1519进行支撑。轴支架包括C形或U形结构部分(未示出),用于可操作地接纳转轴并咬合在转轴周围。也可采用本领域所知的其它将轴固定在支架上的手段。凸轮部分1512和1514可为轴1518上的一个或多个矩形、曲线形或其它形式的弯曲部分。如图15所示,第一凸轮部分1512于枢轴的第一侧相邻,第二凸轮部分1514与枢轴的第二侧相邻。第二凸轮部分1514可为轴1518的最远端或凸轮(未示出,但与图3所示凸轮或远端20相似)的一部分。第一和第二凸轮接触面1520和1522位于第二刷毛固定座1508的底面。像上述各实施例一样,组成第一和第二凸轮部分的弯曲幅度或高度或者离心度足够大,从而能够到达相应的凸轮接触面,并且驱动第二刷毛固定座以预期的距离朝着使用者牙齿运动,进入牙齿,越过牙齿或沿着牙齿运动。当强化牙刷810的电机819驱动转轴1518转动时,第一凸轮部分1512与第一凸轮接触面1520接触并驱动或升起(相对附图而言)第二刷毛固定座1510的第一端1522,使第一端1522在离开刷头816和朝向使用者牙齿(未示出)的方向上绕枢轴1510进行摆动或移动。这一动作使第二刷毛固定座的第二端1526降低并朝着刷头816返回。随着转轴1518的继续运转,第一凸轮1512与第一凸轮接触面1520脱离配合,而第二凸轮1514开始与第二凸轮接触面1522接触。第二凸轮1514驱动或升起(相对附图而言)第二刷毛固定座1508的第二端1526,使第二端1526在离开刷头816和朝向使用者牙齿的方向上绕枢轴1510摆动或运动。这一动作使第二刷毛固定座的第一端1530降低和朝着使用者的牙齿返回。在使用中,随着第一和第二凸轮1512和1514交替接触第一和第二凸轮接触面1520和1522,第二刷毛固定座1508的刷毛以变化的压力压靠在使用者的牙齿上。第二刷毛固定座1508的刷毛最好能压入到使用者的齿间,以获得更好的洁齿效果。这种摆动或转动重复进行(随着轴1518的不断转动),能够提供与第一刷毛固定座814所提供的运动不同并与其互补的刷洗运动。
参阅图16,在强化牙刷810的第七实施例中,第二刷毛固定座1608通过枢轴1610可动地安装在刷头816上,所述枢轴能够设置为销或铰链的形式而安装在第二刷毛固定座1608的横轴上。在一个实施例中,第二刷毛固定座1608绕锚固在第二刷毛固定座1608中点上和牙刷颈侧壁上的销枢轴运动。例如,使横轴接近第二刷毛固定座1608的第一端1612。第二刷毛固定座1608由驱动轴1618上的凸轮1614单独驱动以便进行振动、摆动枢轴运动或晃动。驱动轴最好由轴支架1619进行支撑。轴支架中包括有C形或U形的结构部分(未示出),用于可操作地接纳转轴并咬合在转轴周围。也可采用本领域所知的其它将轴固定在支架上的手段。凸轮1614可以是轴1618的最远端(未示出,但与图3所示的远端或凸轮20相似)。凸轮1614包括轴1618上的一个或多个弯曲部分。例如,所述弯曲部分可为矩形,曲线型或其它形式。凸轮接触面1622位于第二刷毛固定座1608的底面,并接近其第二端1626。当强化牙刷810的电机819驱动转轴1618转动时,凸轮1614开始与凸轮接触面1622接触,驱动或升起(相对附图而言)第二刷毛固定座1608的第二端1626,使第二刷毛固定座1608的第二端1626在离开刷头816和朝向使用者牙齿(未示出)的方向上绕枢轴1610进行摆动或运动。随着转轴1618的继续运转,凸轮1614将与凸轮接触面1622脱离配合。在使用中,由于凸轮1614与凸轮接触面1622的接触,推动第二刷毛固定座1608的刷毛以变化的压力压向使用者的牙齿。第二刷毛固定座的刷毛最好能压入使用者的齿间,以提供更好的洁齿效果。当凸轮与凸轮接触面1622脱离接触时,压靠在牙齿上的刷毛推动第二刷毛固定座离开使用者的牙齿而朝着刷头816返回。这种摆动或转动重复进行(随着转轴1618的不断转动),能够提供与第一刷毛固定座814所提供的运动不同并与其互补的刷洗运动。
参阅图17-18,在强化牙刷810的第八实施例中,第二刷毛固定座1810可动地安装在刷头816的槽1812内,并由驱动轴1818上凸轮1816的单独驱动,以便在槽1812内进行往复或平移横向运动。凸轮1816可以是适当成型的凸缘(bead),该凸缘放置在轴在轴1818之上或注模和固定到轴1818上。例如,可将凸缘成型为一个偏心凸轮。或者,凸轮包括一个或多个矩形、曲线形或其它形式的弯曲。第一和第二凸轮随动件1822和1826悬挂在第二刷毛固定座1810的底面。凸轮随动件与第二刷毛固定座的纵轴818偏离并骑坐或夹持凸轮1816。当电机819(见图8)驱动转轴1818转动时,凸轮1816与第一凸轮随动件1822的表面1821接触并驱动第一凸轮随动件1822,从而使第二刷毛固定座1810沿刷头816的横轴1830方向离开刷头816的第一侧1828。随着转轴1818的继续运转,凸轮1816将与凸轮随动件1822脱离接触。凸轮1816开始与第二凸轮随动件1826的表面1825接触并驱动第二凸轮随动件1826,从而使第二刷毛固定座1810朝着刷头816的第一侧1828返回。这种往复或侧向运动重复进行(随着转轴918的不断转动),能够提供与第一刷毛固定座814所提供的运动不同并与其互补的刷洗运动。
参阅图19,在强化牙刷810的第九实施例中,第二刷毛固定座1910可动地安装在刷头816的槽(未示出)内,并被驱动轴1918上的凸轮1916单独驱动以便进行纵向往复或平移运动。凸轮1916包括具有适当结构的凸缘,该凸缘放置在轴在轴1918之上或注模和固定到轴1918上。凸轮1916包括反螺旋或螺旋沟槽1920。螺旋沟槽分布在凸缘的周边并绕凸缘的纵轴盘旋。例如,使其纵轴与周1918重合。凸轮随动件1922悬挂在第二刷毛固定座1910的底面1923。凸轮随动件1922与螺旋沟槽1920进行滑动配合。当强化牙刷810的电机819驱动转轴1918转动时,螺旋沟槽1920的第一表面1924与凸轮随动件1922的第一表面1925接触并对凸轮随动件1922进行驱动,从而使第二刷毛固定座1910沿刷头816的纵轴818离开第一刷毛固定座814。随着转轴1918的继续运转,凸轮随动件1922到达螺旋沟槽1920的顶点1926,螺旋沟槽1920的第一表面1924与第一凸轮接触面1925脱离接触。螺旋沟槽1920的第二接触面1928开始与凸轮随动件1922的第二接触面1930接触,使第二刷毛固定座1910朝着第一刷毛固定座814返回。这种往复运动重复进行(随着转轴918的不断转动),能够提供与第一刷毛固定座814所提供的运动不同并与其互补的刷洗运动。凸轮1916最好偏心安装在轴1918上,使它们的纵轴不相重合。在这种情况下,如果凸轮随动件1922的长度可使其骑在螺旋沟槽1920的底部,当偏心安装的凸轮被转轴驱动旋转时,可对第二刷毛固定座提供一种垂直向的升降或脉动力。或者,另外改变沟槽的深度,这种深度的改变可给凸轮随动件提供垂直的脉动力,从而给第二刷毛固定座提供垂直的脉动力。螺旋沟槽也可用另外一种沟槽来代替,所述沟槽在环绕凸缘的同时还沿凸缘的纵轴来回盘旋。这种沟槽可用于增加第二刷毛固定座的往复频率。
在上述实施例中,为简单起见,所述刷毛的延伸方向是与纵轴818和刷毛固定座的表面(例如,参见图11)相互垂直的,但也可采用另外的刷毛配置方式来实施本发明,或使第一和第二刷毛固定座的运动进一步得到增强。参阅图20,一些或所有刷毛延伸的与刷毛固定座表面2006形成锐角2008并且朝向或离开刷柄延伸,如图20所示的刷毛2010和2014。参阅图21,在另一个实施例中,某些刷毛远离刷头向往延伸,在另一个方向上又可与二刷毛固定座表面形成锐角2108,如图21所示的刷毛2110和2114。还可采用按摩型刷毛或高度变化的刷毛,例如美国专利No.330,286和No.434,563所公开的,它们的内容在此并入作为参考。还可采用的其他适当的刷毛配置方式,美国专利No.6,006,394,No.4,081,876,No.5,046,213,NO.5,335,389,No.5,392,483,No.5,446,940和No.4,894,880以及国际专利No.WO99/23910中对此进行了全面或部分介绍,它们在此并入作为参考。
上面参考特定的实施例对本发明进行了展示和描述,但在阅读和理解上述说明后,可对其进行改变。例如,在上述说明中,凸轮被描述为转轴上的弯曲部分,或为安装在转轴上的适当成型的凸缘,但凸轮决不限于所述形式。实际上,弯曲部分与凸缘之间可以互换。例如,图22所示的第十实施例与图13和14所示的第五实施例相似。但在第十实施例中,凸轮2216是固定地放置或共注模在轴2218之上的复杂成型凸缘。在述及第一和第二凸轮部分或表面的地方,这些部分和表面可被描述或实施为单独的凸轮。示出的凸轮或凸轮部分具有偏心率或弯曲形状,也可包括多个偏心率或弯曲形状。每个增加的偏心率或弯曲形状将会增加相应刷毛固定座的振动、脉动、枢轴运动、旋转,摇摆,摆动,往复运动或平移的频率。此外,在包括多偏心率时,它们可具有不同的幅度,从而使刷毛固定座的运动幅度产生变化。所有这些变化也落入本发明的权利要求及其等同物所限定的范围之内。
Claims (3)
1.一种电动牙刷,包括:
其内设置有电机的刷柄,所述电机可操作地连接至转轴,以使所述转轴转动;
具有纵向轴线的刷头;
设置在所述刷头上的第一刷毛固定座,包括设置在其上的第一多个刷毛簇,其中所述第一刷毛固定座可操作地连接至所述转轴,以使所述第一刷毛固定座围绕大体垂直于所述纵向轴线的轴线摆动;
第二刷毛固定座,包括顶表面和第二多个刷毛簇,其中所述第二刷毛固定座可操作地连接至所述转轴以移动所述第二刷毛固定座,并且所述第二刷毛固定座沿着所述刷头的所述纵向轴线往复运动;
其特征在于,所述电动牙刷还包括:
凸轮,所述凸轮包括所述转轴内的一个或更多个弯曲部分;
凸轮随动件,所述凸轮随动件悬挂在第二刷毛固定座的底面,并与第二刷毛固定座的纵轴偏离,当所述电机驱动所述转轴转动时,所述凸轮与所述凸轮随动件的凸轮接触面接触并对凸轮随动件进行驱动;以及
弹性偏压部件,所述弹性偏压部件位于刷头的壁和凸轮随动件的与所述凸轮接触面相对的表面之间以推动凸轮随动件,从而使第二刷毛固定座回到刷头的纵轴,
其中,其中所述第二多个刷毛簇中的多个刷毛簇与所述第二刷毛固定座的顶表面形成锐角,所述第二多个刷毛簇中的一些或者所有刷毛簇沿着朝向或离开所述刷柄的方向延伸。
2.根据权利要求1所述的电动牙刷,其特征在于,所述第二刷毛固定座往复运动。
3.根据权利要求1所述的电动牙刷,其特征在于,所述第二刷毛固定座设置在所述第一刷毛固定座与所述刷柄之间。
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- 2002-11-06 WO PCT/US2002/035605 patent/WO2003039393A1/en active Application Filing
- 2002-11-06 CA CA002462435A patent/CA2462435C/en not_active Expired - Fee Related
- 2002-11-06 DE DE20280407U patent/DE20280407U1/de not_active Expired - Lifetime
- 2002-11-06 KR KR1020067017145A patent/KR100830069B1/ko not_active IP Right Cessation
- 2002-11-06 PL PL368650A patent/PL199113B1/pl unknown
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- 2003-10-01 US US10/676,955 patent/US20040083566A1/en not_active Abandoned
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