WO2009136579A1 - 電動歯ブラシ - Google Patents
電動歯ブラシ Download PDFInfo
- Publication number
- WO2009136579A1 WO2009136579A1 PCT/JP2009/058401 JP2009058401W WO2009136579A1 WO 2009136579 A1 WO2009136579 A1 WO 2009136579A1 JP 2009058401 W JP2009058401 W JP 2009058401W WO 2009136579 A1 WO2009136579 A1 WO 2009136579A1
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- WO
- WIPO (PCT)
- Prior art keywords
- electric toothbrush
- brush
- teeth
- eccentric shaft
- tip
- Prior art date
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Classifications
-
- 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
- A61C17/3481—Vibrating brush body, e.g. by using eccentric weights
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B15/00—Other brushes; Brushes with additional arrangements
- A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
- A46B15/0004—Arrangements for enhancing monitoring or controlling the brushing process with a controlling means
- A46B15/0006—Arrangements for enhancing monitoring or controlling the brushing process with a controlling means with a controlling brush technique device, e.g. stroke movement measuring device
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/02—Brush bodies; Handles integral with brushware specially shaped for holding by the hand
-
- 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
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1066—Toothbrush for cleaning the teeth or dentures
Definitions
- the present invention relates to an electric toothbrush.
- Patent Documents 1 and 2 an electric toothbrush driven by electric power is known (see Patent Documents 1 and 2).
- the size is generally larger than that of an ordinary toothbrush. That is, it is configured such that a portion held by a hand becomes longer or thicker than an ordinary toothbrush. Therefore, compared with the case of a normal toothbrush, the distance from the part grasped with the hand at the time of tooth brushing becomes long. Therefore, when brushing teeth using an electric toothbrush, it is general that the area of motion of the arm during brushing of the entire tooth is wider than when brushing teeth with an ordinary toothbrush. In addition, it is necessary to firmly grip the body of the electric toothbrush when brushing teeth, as compared to a normal toothbrush.
- the electric toothbrush is larger than an ordinary toothbrush, so when brushing the back teeth, especially when polishing the cheek side of the back teeth, hold the torso firmly with the elbows raised high There is a need to brush the teeth in a state, and tend to become an unreasonable posture. In addition, there is also a problem that unpolished material tends to be generated. In particular, when the brush is applied to the back teeth, the tip of the brush and the surface where the teeth are lined up are not parallel, and the user feels that the brush is properly hitting the entire back teeth, In some cases, the brush is not properly applied, resulting in unpolished parts.
- An object of the present invention is to provide an electric toothbrush that can brush teeth with a reasonable posture and can reduce the amount of unpolished teeth.
- the present invention employs the following means in order to solve the above problems.
- the electric toothbrush of the present invention is A torso that can be held by hand when brushing teeth;
- an electric toothbrush comprising an intraoral insertion portion that is inserted into the oral cavity at the time of brushing and has a brush at its tip,
- the intraoral insertion portion is configured to incline toward the back side of the brush as it goes from the tip toward the body portion, and the tip portion ties a centroid having a cross-sectional shape perpendicular to the longitudinal direction of the body portion. It is located in the vicinity of the extension line of the virtual line made by
- the intraoral insertion portion that is inserted into the oral cavity during brushing is configured to incline toward the back side of the brush as it goes from the tip toward the body portion, and the tip is
- the body portion is configured to be located in the vicinity of an extension line of an imaginary line formed by connecting centroids having a cross-sectional shape perpendicular to the longitudinal direction. Therefore, as compared with a general electric toothbrush configured so that the body portion and the intraoral insertion portion are straight, the movement region of the arm when brushing the back teeth, which are likely to be left unpolished, is narrowed. That is, in the case of the electric toothbrush of the present invention, when the back teeth are brushed, the movement region of the body portion is concentrated near the front front of the mouth.
- a connecting portion configured to incline toward the back side of the brush as it goes from the front end of the trunk portion toward the brush, and to connect the trunk portion and the intraoral insertion portion.
- An eccentric shaft provided inside the intraoral insertion portion; A motor for rotating the eccentric shaft; It is good to have.
- the motor may be provided inside the connecting portion.
- the rotation shaft of the motor and the eccentric shaft may be connected by a flexible rod.
- the length of the flexible rod can be shortened, and the transmission efficiency of the driving force can be increased.
- the eccentric shaft itself has flexibility.
- a display unit in which display information is changed is provided in a region including at least a part of the brush side surface in the connection unit.
- buttons for operating the operation of the electric toothbrush is provided in a region extending from the body part to the connection part, It is preferable that buttons for performing different operations are separately arranged in the body portion and the connection portion.
- buttons This makes it easier for the user to distinguish the buttons to be operated. For example, by arranging a button for turning on the power on the connection part side and a button for turning off the power on the body part side, the operation when turning the power on or off can be performed more easily.
- FIG. 1 is a front view of the electric toothbrush according to the first embodiment of the present invention.
- FIG. 2 is a side view of the electric toothbrush according to the first embodiment of the present invention.
- FIG. 3 is a perspective view seen from the front side of the electric toothbrush according to the first embodiment of the present invention.
- FIG. 4 is a perspective view of the electric toothbrush according to the first embodiment of the present invention viewed from the back side.
- FIG. 5 is a schematic diagram (perspective view) showing a main configuration inside the electric toothbrush according to the first embodiment of the present invention.
- FIG. 6 is a diagram comparing the positions of the electric toothbrush according to Example 1 of the present invention and the electric toothbrush according to the comparative example when the brush surface is applied to the left back tooth (when appropriately applied).
- FIG. 1 is a front view of the electric toothbrush according to the first embodiment of the present invention.
- FIG. 2 is a side view of the electric toothbrush according to the first embodiment of the present invention.
- FIG. 3 is a perspective view seen from the front side
- FIG. 7 is a diagram comparing the positions of the electric toothbrush according to Example 1 of the present invention and the electric toothbrush according to the comparative example when the brush surface is applied to the right back tooth (when appropriately applied).
- FIG. 8 is a schematic view showing how teeth are brushed using the electric toothbrush according to the first embodiment of the present invention.
- FIG. 9 is a schematic view showing a state where teeth are brushed using the electric toothbrush according to the first embodiment of the present invention.
- FIG. 10 is a schematic view showing a state where teeth are brushed using the electric toothbrush according to the first embodiment of the present invention.
- FIG. 11 is a schematic view showing a state where teeth are brushed using the electric toothbrush according to the first embodiment of the present invention.
- FIG. 8 is a schematic view showing how teeth are brushed using the electric toothbrush according to the first embodiment of the present invention.
- FIG. 9 is a schematic view showing a state where teeth are brushed using the electric toothbrush according to the first embodiment of the present invention.
- FIG. 10 is a schematic view showing a
- FIG. 12 is a schematic view showing how teeth are brushed using the electric toothbrush according to the comparative example.
- FIG. 13 is a schematic view showing how teeth are brushed using the electric toothbrush according to the comparative example.
- FIG. 14 is a schematic view showing how teeth are brushed using the electric toothbrush according to the comparative example.
- FIG. 15 is a schematic view showing how teeth are brushed using the electric toothbrush according to the comparative example.
- FIG. 16 is a side view of the electric toothbrush according to the second embodiment of the present invention.
- FIG. 17 is a schematic view (perspective view) showing the main components inside the electric toothbrush according to the second embodiment of the present invention.
- Example 1 The electric toothbrush according to the first embodiment of the present invention will be described with reference to FIGS.
- FIG. 1 is a front view of the electric toothbrush according to the first embodiment of the present invention.
- FIG. 2 is a side view of the electric toothbrush according to the first embodiment of the present invention.
- FIG. 3 is a perspective view seen from the front side of the electric toothbrush according to the first embodiment of the present invention.
- FIG. 4 is a perspective view of the electric toothbrush according to the first embodiment of the present invention viewed from the back side.
- the electric toothbrush 100 includes a case 10 provided with a drive source therein, and a brush component 20 provided detachably with respect to the case 10.
- the brush part 20 is a part that is inserted into the oral cavity when brushing teeth, and corresponds to an intraoral insertion part.
- a brush 21 is provided at the tip of the brush component 20.
- the case 10 includes a substantially cylindrical portion and a bent portion provided by being bent from the substantially cylindrical tip portion 16. And the substantially cylindrical part of case 10 is a part grasped by hand at the time of tooth brushing.
- the portion gripped by the hand when brushing the substantially cylindrical shape is referred to as the body portion 11.
- the bent portion of the case 10 is a portion that connects the body portion 11 and the brush component 20 that is an intraoral insertion portion.
- this bent portion is referred to as a connection portion 12.
- the display unit 13 is provided in a region including a part of the surface on the brush 21 side in the connection unit 12.
- the information displayed by the display unit 13 is information that can change during charging, for each tooth brushing, or during tooth brushing. Examples of information to be displayed include a selection mode, a remaining battery level, an elapsed time of tooth brushing, an optimum mode, and the like in the case where a plurality of driving modes of the brush 21 (vibration as will be described later in this embodiment) can be selected.
- the state of realization of a simple brush angle can be mentioned.
- an operation unit 14 including a group of buttons for performing various settings such as a switch for turning on / off the power and changing various modes is provided adjacent to the display unit 13.
- the operation unit 14 is provided with an on switch button 14a for turning on the power and an off switch button 14b for turning off the power.
- the on switch button 14 a is provided on the surface of the connecting portion 12 on the brush 21 side.
- the off switch button 14b is provided on the surface of the body portion 11 on the brush 21 side.
- drum 11 is a substantially cylindrical shape
- drum 11 is a substantially straight line.
- an alternate long and short dash line T1 is a line including the virtual line and its extension line.
- the connecting portion 12 is also substantially cylindrical, and the imaginary line formed by connecting the centroids of the cross-sectional shape perpendicular to the longitudinal direction of the connecting portion 12 is also a substantially straight line.
- an alternate long and short dash line T3 is a line including the virtual line and its extension line.
- the shape of the portion excluding the brush 21 in the brush component 20 that is the intraoral insertion portion is substantially a truncated cone.
- An imaginary line formed by connecting the centroids of the cross-sectional shape perpendicular to the longitudinal direction in this portion is also a substantially straight line.
- an alternate long and short dash line T2 is a line including the virtual line and its extension line.
- the brush component 20 is configured to be inclined toward the back side of the brush 21 from the tip toward the body portion 11 side.
- the brush component 20 is configured to extend to a position where the rear end protrudes to the back side from the body portion 11.
- the tip of the brush part 20 is positioned in the vicinity of an imaginary line extension line (dashed line T1) formed by connecting centroids of a cross-sectional shape perpendicular to the longitudinal direction of the body part 11.
- connecting portion 12 is configured to incline toward the back side of the brush 21 from the tip of the body portion 11 toward the brush 21 side.
- FIG. 5 is a schematic diagram (perspective view) showing a main configuration inside the electric toothbrush according to the first embodiment of the present invention.
- a battery (rechargeable battery) 31 Inside the case 10, a battery (rechargeable battery) 31, a motor 32 as a drive source, and circuit boards 33 and 34 having various electronic components and wirings are housed.
- the battery 31 is provided in the body portion 11, and the motor 32 is provided in the connection portion 12.
- a stem 15 is provided on the front end side of the case 10 so that one end side is supported inside the case 10 and the other end side protrudes from the opening at the front end of the case 10.
- the brush component 20 is mounted so as to cover the stem 15.
- an eccentric shaft 35 having a weight 36 whose center of gravity is shifted from the axial center is provided on the distal end side of the case 10.
- the eccentric shaft 35 is provided inside the stem 15, that is, inside the brush component 20 that is an intraoral insertion portion. Further, the weight 36 provided on the eccentric shaft 35 is provided so as to be positioned in the vicinity of the brush 21.
- the rotating shaft of the motor 32 and the eccentric shaft 35 are connected by a flexible rod (hereinafter referred to as a flexible rod 37).
- the flexible rod 37 and the eccentric shaft 35 are connected by a connection terminal 38.
- the end of the eccentric shaft 35 on the weight 36 side is supported by a bearing provided at the tip of the stem 15.
- the rotation shaft of the motor 32 rotates, and the eccentric shaft 35 rotates through the flexible rod 37 fixed to the rotation shaft.
- the eccentric shaft 35 is provided with the weight 36 provided at a position where the center of gravity is deviated from the axis. Therefore, if the eccentric shaft 35 is rotated in a state where the tip of the eccentric shaft 35 is not supported by the bearing, the eccentric shaft 35 moves so as to turn around the axis while the eccentric shaft 35 itself rotates. To do.
- the stem 15 can be vibrated by performing such an operation. Then, by vibrating the stem 15, the vibration can be transmitted to the brush component 20 fixed to the stem 15. Accordingly, since the brush 21 vibrates due to the vibration of the brush component 20, the tooth can be brushed by applying the brush 21 to the tooth.
- the brush component 20 that is an intraoral insertion portion that is inserted into the oral cavity at the time of tooth brushing is disposed on the back side of the brush 21 as it moves from the tip toward the body portion 11 side.
- the tip portion is configured to be positioned in the vicinity of an imaginary line extension line (dashed line T1) formed by connecting centroids of a cross-sectional shape perpendicular to the longitudinal direction of the body portion 11. Has been.
- the electric toothbrush 100 compared with a general electric toothbrush configured so that the body portion and the intraoral insertion portion are straight, teeth can be brushed in a comfortable posture. And you can reduce the amount of unpolished. This point will be described in more detail with reference to FIGS.
- FIG. 6 and FIG. 7 relate to the electric toothbrush and the comparative example according to Example 1 of the present invention when the brush surface is applied to the back teeth (FIG. 6 is the left back tooth, FIG. 7 is the right back tooth). It is the figure which compared the position of the electric toothbrush.
- the electric toothbrush 200 which concerns on a comparative example is a common electric toothbrush comprised so that a trunk
- H is a tooth model.
- the body portion 11 is more in the case of the electric toothbrush 100 according to the present embodiment than in the case of the electric toothbrush 200 according to the comparative example. It is located inside (near the front front of the mouth) (see arrow A in FIG. 6 and arrow B in FIG. 7).
- FIG. 8 to 11 are schematic views showing how teeth are brushed using the electric toothbrush according to the first embodiment of the present invention. Each figure shows a state where the right hand holds the electric toothbrush 100 to brush the teeth. 8 is a view of the user who is brushing the left back tooth from an oblique upper side, FIG. 9 is a view of the user when brushing the left back tooth from the front, and FIG. 10 is a right back tooth. FIG. 11 is a view of the user when brushing the right back tooth as viewed from the front.
- FIGS. 12 to 15 show cases where teeth are brushed using the electric toothbrush 200 according to the comparative example.
- 12 to 15 are schematic views showing how teeth are brushed using the electric toothbrush according to the comparative example. Each figure shows a state where the right hand holds the electric toothbrush 200 and brushes its teeth.
- 12 is a view of the user who is brushing the left back tooth from an obliquely upper side
- FIG. 13 is a view of the user when brushing the left back tooth from the front
- FIG. 14 is a view of the right back tooth.
- FIG. 15 is a view of the user when brushing the right back tooth as viewed from the front.
- the brush 21 when the brush 21 is applied to the back teeth in a normal posture without difficulty, the brush tip surface and the surface on which the teeth are arranged are substantially parallel, and the entire back teeth The brush can be applied properly. Accordingly, it is possible to reduce unpolished residues.
- the brush part 20 that is the type that vibrates the brush 21 using the eccentric shaft 35 and the body part 11 and the oral cavity insertion part as described above are provided. It is not configured to be straight. That is, in the case of the electric toothbrush 100 according to the present embodiment, the configuration is refracted at two locations between the body portion 11 and the connection portion 12 and between the connection portion 12 and the brush component 20 that is an intraoral insertion portion. Is adopted. Employing such a configuration is a negative factor in terms of drive mechanism and drive force transmission efficiency.
- the electric toothbrush 100 employs a configuration in which the motor 32 serving as a drive source is provided inside the connection portion 12. Thereby, the refractive part between the motor 32 which is a drive source and the eccentric shaft 35 can be made into only one place.
- the flexible rod 37 is used only in a short section around the refracted portion.
- the transmission efficiency of the driving force from the rotating shaft of the motor 32 to the brush 21 is reduced as compared with a general electric toothbrush configured so that the body portion and the intraoral insertion portion are straight. Can be suppressed.
- the motor 32 serving as a drive source is provided inside the connecting portion 12, it is possible to suppress the vibration of the motor 32 from being transmitted to the body portion 11 held by the hand. Therefore, discomfort during brushing can be reduced.
- the display unit 13 is provided in a region including a part of the surface of the connection unit 12 on the brush 21 side.
- the display unit 13 can be positioned at a position facing the user's face during brushing. Thereby, the display unit 13 can be visually recognized even during tooth brushing.
- the on switch button 14 a of the operation unit 14 is provided in the connection unit 12, and the off switch button 14 b is provided in the body unit 11. Therefore, the user can easily distinguish these buttons, and can easily perform an operation when the power is turned on or off.
- Example 2 16 and 17 show a second embodiment of the present invention.
- drum part and an intraoral insertion part (brush part) is curved, and the eccentric shaft itself has flexibility is shown. Since other basic configurations and operations are the same as those in the first embodiment, the same components are denoted by the same reference numerals, and the description thereof is omitted as appropriate.
- FIG. 16 is a side view of the electric toothbrush according to the second embodiment of the present invention.
- FIG. 17 is a schematic view (perspective view) showing the main components inside the electric toothbrush according to the second embodiment of the present invention.
- the electric toothbrush 100a also includes a case 10a provided with a drive source therein and a brush component 20a provided detachably with respect to the case 10a.
- the brush part 20a is a portion that is inserted into the oral cavity when brushing teeth, and corresponds to an intraoral insertion portion. Further, a brush 21a is provided at the tip of the brush component 20a.
- the case 10a in the present embodiment includes a substantially cylindrical portion and a curved portion that is bent from the substantially cylindrical tip portion 16a. And the substantially cylindrical part of case 10a is a part grasped by hand at the time of tooth brushing.
- the portion gripped by the hand when brushing the substantially cylindrical shape is referred to as a trunk portion 11a.
- the curved portion of the case 10a is a portion that connects the body portion 11a and the brush component 20a that is an intraoral insertion portion.
- this curved portion is referred to as a connection portion 12a.
- a display portion 13a is provided in a region including a part of the surface on the brush 21a side in the connection portion 12a.
- the operation unit 17 is provided adjacent to the display unit 13a, the on switch button 17a is provided in the connection unit 12a, and the off switch button 17b is provided in the body unit 11a.
- the body part 11a is substantially cylindrical, and the imaginary line formed by connecting the centroids of the cross-sectional shape perpendicular to the longitudinal direction of the body part 11a is substantially straight. It becomes.
- an alternate long and short dash line T1 is a line including the virtual line and its extension line.
- the shape of the part except the brush 21a among the brush components 20a which are intraoral insertion parts is a substantially truncated cone.
- An imaginary line formed by connecting the centroids of the cross-sectional shape perpendicular to the longitudinal direction in this portion is also a substantially straight line.
- an alternate long and short dash line T2 is a line including the virtual line and its extension line.
- the brush component 20a is configured to be inclined toward the back side of the brush 21a as it goes from the tip toward the body portion 11a. Also in this embodiment, the brush component 20a is configured to extend to a position where the rear end protrudes to the back side from the body portion 11a. Further, the tip of the brush part 20a is positioned in the vicinity of an imaginary line extension line (dashed line T1) formed by connecting centroids having a cross-sectional shape perpendicular to the longitudinal direction of the body part 11a.
- the connecting portion 12a is directed toward the back side of the brush 21 from the front end of the body portion 11a toward the brush 21a side. Configured to tilt.
- an eccentric shaft 35a having a weight 36a whose center of gravity is shifted from the axial center is provided inside the brush component 20 on the distal end side of the case 10a.
- the eccentric shaft 35a itself has flexibility (that is, it is constituted by a flexible rod). Further, the rotating shaft of the motor 32 and the eccentric shaft 35a are directly connected.
- the electric toothbrush 100a according to the present embodiment has the same effect as that of the electric toothbrush 100 according to the first embodiment.
- the eccentric shaft 35a itself has flexibility, and the section where the flexible rod is provided is longer than that in the first embodiment. . Therefore, the driving force transmission efficiency is inferior to that of the first embodiment.
- the eccentric shaft 35a itself is formed of a flexible rod, the number of parts can be reduced as compared with the case of the first embodiment.
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Abstract
Description
歯磨き時に手に握られる胴体部と、
歯磨き時に口腔内に挿入され、その先端にブラシを有する口腔内挿入部と、を備える電動歯ブラシにおいて、
前記口腔内挿入部は、先端から胴体部側に向かうにつれてブラシの背面側に向かって傾斜するように構成され、かつその先端部は前記胴体部における長手方向に垂直な断面形状の図心を結んでできる仮想線の延長線上付近に位置することを特徴とする。
該偏心軸を回転させるモータと、
を備えるとよい。
それぞれ異なる操作を行うボタンが前記胴体部と接続部に分かれて配置されているとよい。
図1~図15を参照して、本発明の実施例1に係る電動歯ブラシについて説明する。
図1~図4を参照して、本発明の実施例1に係る電動歯ブラシの外観構成について説明する。図1は本発明の実施例1に係る電動歯ブラシの正面図である。図2は本発明の実施例1に係る電動歯ブラシの側面図である。図3は本発明の実施例1に係る電動歯ブラシの正面側から見た斜視図である。図4は本発明の実施例1に係る電動歯ブラシの背面側から見た斜視図である。
図5を参照して、本発明の実施例1に係る電動歯ブラシの内部構成について説明する。図5は本発明の実施例1に係る電動歯ブラシの内部の主要構成を示す概略図(透視図)である。
以上のように、本実施例に係る電動歯ブラシ100においては、歯磨き時に口腔内に挿入される口腔内挿入部であるブラシ部品20が、先端から胴体部11側に向かうにつれてブラシ21の背面側に向かって傾斜するように構成され、かつその先端部は胴体部11における長手方向に垂直な断面形状の図心を結んでできる仮想線の延長線(一点鎖線T1)上付近に位置するように構成されている。
図16及び図17には、本発明の実施例2が示されている。本実施例2においては、胴体部と口腔内挿入部(ブラシ部品)とを接続する接続部が湾曲した構成で、偏心軸自体が可撓性を有する場合の構成を示す。その他の基本的な構成および作用については実施例1と同一なので、同一の構成部分については同一の符号を付して、その説明は適宜省略する。
11,11a 胴体部
12,12a 接続部
13,13a 表示部
14 操作部
14a オンスイッチボタン
14b オフスイッチボタン
15 ステム
16,16a 先端部分
17 操作部
17a オンスイッチボタン
17b オフスイッチボタン
20,20a ブラシ部品
21,21a ブラシ
31 電池
32 モータ
33,34 回路基板
35,35a 偏心軸
36,36a 錘
37 フレキシブルロッド
38 接続端子
100,100a 電動歯ブラシ
Claims (8)
- 歯磨き時に手に握られる胴体部と、
歯磨き時に口腔内に挿入され、その先端にブラシを有する口腔内挿入部と、を備える電動歯ブラシにおいて、
前記口腔内挿入部は、先端から胴体部側に向かうにつれてブラシの背面側に向かって傾斜するように構成され、かつその先端部は前記胴体部における長手方向に垂直な断面形状の図心を結んでできる仮想線の延長線上付近に位置することを特徴とする電動歯ブラシ。 - 前記胴体部の先端からブラシ側に向かうにつれてブラシの背面側に向かって傾斜するように構成され、かつ該胴体部と前記口腔内挿入部とを接続する接続部を備えることを特徴とする請求項1に記載の電動歯ブラシ。
- 前記口腔内挿入部の内部に設けられる偏心軸と、
該偏心軸を回転させるモータと、
を備えることを特徴とする請求項1または2に記載の電動歯ブラシ。 - 前記モータは、前記接続部の内部に設けられることを特徴とする請求項3に記載の電動歯ブラシ。
- 前記モータの回転軸と前記偏心軸が、可撓性を有するロッドによって連結されていることを特徴とする請求項4に記載の電動歯ブラシ。
- 前記偏心軸自体が可撓性を有することを特徴とする請求項4に記載の電動歯ブラシ。
- 前記接続部におけるブラシ側の面の少なくとも一部を含む領域に、表示情報が変化する表示部が設けられていることを特徴とする請求項2~6のいずれか一つに記載の電動歯ブラシ。
- 前記胴体部から接続部に亘る領域に、電動歯ブラシの動作を操作する複数のボタンを有する操作部が設けられており、
それぞれ異なる操作を行うボタンが前記胴体部と接続部に分かれて配置されていることを特徴とする請求項2~7のいずれか一つに記載の電動歯ブラシ。
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DE112009001096T DE112009001096T5 (de) | 2008-05-09 | 2009-04-28 | Elektrische Zahnbürste |
CN200980116252.8A CN102014789B (zh) | 2008-05-09 | 2009-04-28 | 电动牙刷 |
US12/990,368 US8966694B2 (en) | 2008-05-09 | 2009-04-28 | Electric toothbrush |
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JP2008-123929 | 2008-05-09 | ||
JP2008123929A JP5292913B2 (ja) | 2008-05-09 | 2008-05-09 | 電動歯ブラシ |
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JP (1) | JP5292913B2 (ja) |
CN (1) | CN102014789B (ja) |
DE (1) | DE112009001096T5 (ja) |
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Also Published As
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US8966694B2 (en) | 2015-03-03 |
JP5292913B2 (ja) | 2013-09-18 |
RU2465864C2 (ru) | 2012-11-10 |
DE112009001096T5 (de) | 2011-03-17 |
RU2010150476A (ru) | 2012-06-20 |
CN102014789B (zh) | 2013-04-03 |
US20110056033A1 (en) | 2011-03-10 |
CN102014789A (zh) | 2011-04-13 |
JP2009268828A (ja) | 2009-11-19 |
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