CN101702877A - 用于牙刷的刷头 - Google Patents

用于牙刷的刷头 Download PDF

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CN101702877A
CN101702877A CN200880020011.9A CN200880020011A CN101702877A CN 101702877 A CN101702877 A CN 101702877A CN 200880020011 A CN200880020011 A CN 200880020011A CN 101702877 A CN101702877 A CN 101702877A
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brush
valve
dish
composite component
pipe
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CN101702877B (zh
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马丁·哈斯
伊沃·库纳斯
阿曼·施瓦特-哈特曼
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Braun GmbH
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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
    • 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
    • A61C17/36—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor with rinsing means
    • 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
    • A61C17/225—Handles or details thereof
    • A61C17/227—Handles or details thereof with reservoirs, e.g. for toothpaste
    • 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

Abstract

本发明涉及用于牙刷的刷头。刷头具有以可旋转方式安装在刷体(2)上的刷盘(3)和具有用于施用清洁产品的开口的通道(7)以及复合部件(6)，所述复合部件用作打开通道(7)的阀门(12)和刷盘(3)的旋转轴承。复合部件(6)包括由硬材料制成的管(8)，所述管(8)位于其一端上并且在该端处连接到通道(7)上。由弹性材料制成的阀门(12)设置在复合部件(6)的另一端上。复合部件(6)的管(8)以固定方式连接到刷体(2)上，例如挤压到刷体(2)中。刷盘(3)以可旋转方式安装在管(8)上。优选地将阀门(12)设计为具有狭槽(13)的槽阀。

Description

用于牙刷的刷头
技术领域
本发明涉及一种用于牙刷的刷头，所述刷头具有以可旋转方式安装在刷体上的刷盘和用于施用清洁产品的开口。
背景技术
手动操作的牙刷和电驱动牙刷为人们所知，其中护理物质可由泵喂送到刷头。对于使用者来讲最舒适的解决方案是，在清洁牙齿的同时护理物质直接排放到刷头上以及连续地喂送到刷头。其头部具有活动刷盘的电动牙刷必须将护理物质从固定的喉部喂送到活动刷盘上。一方面，这会导致与刷头的固定部件和活动部件之间的密封和刷盘的活动安装相关的困难。另一方面，还必须采取措施以防止护理物质的喂送通道变干。
发明内容
因此本发明的目的是创制一种构造简单的刷头，所述刷头具有以可旋转方式安装的刷盘和具有用于施用护理产品的开口的通道，同时可避免前述困难。
为了实现此目的，刷头具有复合部件，所述复合部件在其一端上具有密封装置，所述密封装置优选地由弹性材料制成并被设计为例如槽阀，并且在其另一端与通道连接，护理产品能够通过该通道来喂送。该端优选地由管状套管组成，所述套管由适于用作刷盘的转轴的硬材料制成。
本发明的有利的改进形式示于从属权利要求中。
刷头可为插接刷的一部分，所述插接刷可插入到牙刷的手柄上；或者其也可为牙刷的一部分，其中仅有刷盘能够被置换。复合部件连接到刷头的刷体上，其中通道被设计成能够传送护理产品。
已设想了用于牙刷的刷头，所述牙刷具有用于接纳用来处理口腔的液体或糊状产品的贮存器。这些物质可为用于清洁牙齿的产品以及用于清洁和护理口腔的一般产品，例如用于以下用途的产品：防止蛀洞、治疗齿龈和炎症、减少口臭、漂白或美白牙齿、为牙釉补充矿质、为过敏牙齿脱敏、或其它应用。这些护理产品通过通道喂送到刷盘上并且通过阀门排放。护理产品可填充在可置换的小袋或料筒中并且可贮存在手柄中。护理产品优选通过泵来传送，所述泵由使用者手动启动或由电驱动机构启动。
为了防止护理产品变干或为了防止口腔细菌的污染，有阀门设置在通道的出口上。该阀门为复合部件的一部分，所述复合部件由两个组件组成。在刷盘之上突出的组件由弹性材料制成。该材料可来自下组弹性体(例如，橡胶化合物、硅氧烷、NBR或EPDM)、或特别是热塑性弹性体(TPE)。为了牢固地连结阀门并将其相对于刷体密封，将硬物质用作第二组件。在一个优选的实施方案中，弹性阀门由橡胶制成，并且第二组件由钢制成；它们通过硫化工艺彼此牢固地连接。将橡胶从钢上拉脱的力可以被设定得很高，从而即使在很高的应力下橡胶也不会从钢上松开，而是其自身发生撕裂。利用如下复合部件可获得相同的结果，所述复合部件以双组分注塑方法产生并且由硬塑料和TPE制成。
优选地将复合部件在其一端上设计为钢管，通过该钢管可传送护理产品。钢管在其一端上以固定方式锚定在刷体中。将挠性阀门设置在钢管或复合部件的另一端上。因此，在管和弹性阀门之间以及在刷体和阀门之间不存在活动的或摩擦的密封表面。通过该类型的安装根本不存在活动的密封表面，所述活动的密封表面将会例如在磨料牙膏的作用下很快被磨损。阀门可穿过刷盘中的足够大的孔显露出来，因此在径向上同样也不存在摩擦表面，并且因此在挠性阀门的主体上不会发生磨损。
仅在一个活动表面(推进表面16)上会发生摩擦，该活动表面为刷盘和金属管之间的端面。然而，该部位的磨损主要发生在刷盘的塑料部件上，并不影响其功能。弹性阀门12优选地设置在金属管8内，以便金属管的外部圆柱表面可用作刷盘的工作表面。在一个优选的实施方案中，将金属套管9挤压到刷盘3的孔中，以便金属贴靠在金属上因而也可使牙膏所导致的磨损尽可能的小。由于金属部件可制造得非常精确，因此可以低成本获得非常精密的间隙配合。
将由两个组件组成的复合部件6优选在刷体2中挤压到通道7中，牙齿护理物质通过该通道输送。然而，如果复合部件从压力配合中松动，则其将仍然由刷盘3保持在其位置中并且因此可固定住而不会脱落。可通过将金属管8挤压到刷体2的孔中来将金属管8和通道7紧密地相互连接。不需要用于密封的附加部件，例如O形环。
在端面上通过作为去往刷体的方向上的障碍物的平行推进表面将刷盘保持在一个方向上。这些推进表面具有多级设计。首先，表面16在刷盘的孔的下方支撑在金属管上。如果该表面被推入，则表面17继而表面18将接触刷体2上的相应的对接面。根据本发明，这些表面会依次从最小摩擦半径16开始，直到最大摩擦半径18相继地磨损。这保证了新牙刷可经历最小的摩擦损失，因此表现出最佳性能。随着牙刷寿命的增加，系统中的摩擦损失仅会略微地增加。通过钉入刷体中的金属安全销10可防止刷盘在另一个方向上脱落。
附图说明
本发明通过附图中所示的示例性实施方案得到更详细的说明。
图1显示用于电动牙刷的可置换的置换刷，置换刷具有刷体2和活动刷盘3，刷盘具有以已知方式设置的清洁元件4和5。
图2显示具有刷体2的刷头，其中刷盘3安装在刷体上。在刷盘的中部为孔，由挠性材料制成的复合部件6穿过该孔嵌入到刷盘中并在刷盘之上突出。钉入的安全销10可将盘3固定以防止松动。
图3显示穿过刷头的横截面。护理产品被置换刷喂送到通道7中。护理产品从那里被金属管8喂送到挠性阀门12中，然后可从所述阀门中通过狭槽13离开。将金属管8挤压到刷体2中。阀门12穿过刷盘3中的孔，刷毛束4和挠性元件5固定在所述刷盘上。刷盘3安装在刷体2上。刷盘3由安全销10以轴向方式固定以防止松动。被挤压到刷盘3的孔中的金属套管9用作刷盘旋转的工作表面。金属套管9连同阀门的金属管8形成刷盘3的轴承。具有最小摩擦半径的顶靠刷体2的刷盘3的轴向推进表面为表面16；表面17为发生接触的下一个表面。如果刷盘已结合到表面16和表面17中，则具有最大摩擦半径的表面18将最终起作用。驱动元件11能够优选地以振荡和旋转运动使刷盘移位。
图4显示了复合部件6，该复合部件由钢管8和挠性阀门12组成，该阀门具有用于排放护理产品的狭槽13。挠性材料的弹性通常会闭合该狭槽13并且仅当从内部施用压力时才打开。因此，阀门用作仅在一个方向上打开的止回阀。
图5以横截面显示了具有钢管8、弹性阀门12和狭槽13的复合部件6。
刷头的所有个别部件均可在所有可设想的使用条件下可靠地连结到刷体上。口中的小的松散部件不仅可能导致窒息，而且还会在不利的情况下进入肺中。因此，为了安全起见，绝对有必要保证所述部件均完全地固定到刷头上。根据本发明，对于排放阀门需做到这一点，将可旋转刷盘的支承面和挠性排放阀门制造为复合部件。有了上文所述的构造，阀门几乎不可能在口中松动。

Claims (8)

1.一种用于牙刷的刷头，所述刷头具有以可旋转方式安装在刷体上的刷盘和具有用于施用护理产品的开口的通道，其特征在于所述刷头具有复合部件(6)，所述复合部件用作打开所述通道(7)的阀门(12)和用作所述刷盘(3)的旋转轴承。
2.如权利要求1所述的刷头，其特征在于所述复合部件(6)包括在其一端上的由硬材料制成的管(8)，并且由弹性材料制成的阀门(12)设置在其另一端上。
3.如权利要求2所述的刷头，其特征在于所述复合部件(6)的管(8)以固定方式连接到所述刷体(2)上，例如挤压到所述刷体(2)中。
4.如权利要求2或3所述的刷头，其特征在于所述刷盘(3)以可旋转方式安装在所述管(8)上。
5.如权利要求2、3或4所述的刷头，其特征在于所述管(8)由金属制成。
6.如前述权利要求中的任一项所述的刷头，其特征在于所述阀门(12)被设计为具有狭槽(13)的槽阀。
7.如前述权利要求中的任一项所述的刷头，其特征在于所述阀门(12)由橡胶制成，并且所述管(8)由钢制成，所述阀门和所述管通过硫化工艺牢固地彼此连接。
8.如前述权利要求中的任一项所述的刷头，其特征在于所述刷盘(3)具有径向轴承孔，套管(9)被挤压到所述孔中。
CN200880020011.9A 2007-06-20 2008-06-05 用于牙刷的刷头 Expired - Fee Related CN101702877B (zh)

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DE102007028184A DE102007028184A1 (de) 2007-06-20 2007-06-20 Bürstenkopf für eine Zahnbürste
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PCT/EP2008/004476 WO2008155025A1 (de) 2007-06-20 2008-06-05 Bürstenkopf für eine zahnbürste

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CN109893276A (zh) * 2019-03-19 2019-06-18 深圳市沃特沃德股份有限公司 牙膏盒、牙膏盒固定结构及电动牙刷
CN113727669A (zh) * 2019-04-16 2021-11-30 皇家飞利浦有限公司 液压驱动刷-齿间喷射组合

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EP2157934A1 (de) 2010-03-03
CN101702877B (zh) 2013-08-07
US20100269279A1 (en) 2010-10-28
DE102007028184A1 (de) 2008-12-24
US8458841B2 (en) 2013-06-11
JP2010529872A (ja) 2010-09-02
CA2690544A1 (en) 2008-12-24

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