JP5845759B2

JP5845759B2 - Toothbrush with cap

Info

Publication number: JP5845759B2
Application number: JP2011201821A
Authority: JP
Inventors: 行紀和田; 正洋西浦
Original assignee: Sunstar Inc
Current assignee: Sunstar Inc
Priority date: 2011-09-15
Filing date: 2011-09-15
Publication date: 2016-01-20
Anticipated expiration: 2031-09-15
Also published as: JP2013063100A

Description

本発明は、携帯用として好適なキャップ付き歯ブラシに関するものである。 The present invention relates to a toothbrush with a cap suitable for portable use.

電動歯ブラシとして、化粧品を収納するハンドバッグやポーチ等に収納可能な小型のキャップ付き電動歯ブラシが、化粧直しの際に手軽にブラッシングできることから、会社勤めの女性の間で普及しつつある（例えば、特許文献１参照。）。 As an electric toothbrush, a small-sized electric toothbrush with a cap that can be stored in a handbag or a pouch for storing cosmetics can be easily brushed during re-dressing, and is becoming popular among women working at the company (for example, patent documents) 1).

通常、前記キャップ付き電動歯ブラシは、ハンドバッグやポーチ等に収納する関係上、化粧品や化粧道具との意匠的なギャップをできるだけ少なくするため、化粧品や化粧道具の意匠を考慮したデザインがなされ、外観形状だけでは電動歯ブラシであることが判別できない程度に、スリムでおしゃれなデザインに構成されている。具体的には、キャップ及びそれに連なる電動歯ブラシのグリップ部の基部側部分を同一断面積の連続的な円筒状や、角部を丸めた角筒状の細長い筒状に形成したものが実用化されている。 In general, the electric toothbrush with cap is designed in consideration of the design of cosmetics and cosmetic tools in order to minimize the design gap with cosmetics and cosmetic tools, as it is stored in handbags and pouches. It has a slim and fashionable design that cannot be identified as an electric toothbrush alone. Specifically, the base part of the grip portion of the cap and the electric toothbrush connected to the cap is formed into a continuous cylindrical shape with the same cross-sectional area or a rectangular tube-like elongated cylindrical shape with rounded corners. ing.

特開２０１１−１３０９７１号公報JP 2011-130971 A

ところで、前記キャップ付き電動歯ブラシでは、外観形状をできるだけ小さくスリムに構成するため、キャップ及び電動歯ブラシのグリップ部の基部側部分を同一断面積の連続的な円筒状や、角部を丸めた角筒状の細長い筒状に形成しており、キャップの外面とグリップ部の基部側部分の外面とが連続的に連なるように、電動歯ブラシのグリップ部におけるキャップとの嵌合部が、キャップの厚さ分だけ、グリップ部の基部側部分よりも一回り小さい断面形状に構成されている。しかし、このように構成すると、グリップ部の途中部に段差が形成されるため、グリップ部を手で保持したときのフィット感が低下するだけでなく、キャップの厚さ分だけブラシの毛丈が短くなり、歯ブラシの使用感が低下し、ブラッシング性能が低下したり、歯肉を痛めたりするという問題があった。 By the way, in the electric toothbrush with a cap, in order to make the appearance shape as small and slim as possible, the base side part of the grip part of the cap and the electric toothbrush is a continuous cylindrical shape having the same cross-sectional area or a rectangular tube with rounded corners. The fitting portion of the grip portion of the electric toothbrush with the cap has a thickness of the cap so that the outer surface of the cap and the outer surface of the base side portion of the grip portion are continuously connected. The cross-sectional shape is slightly smaller than the base side portion of the grip portion. However, if configured in this way, a step is formed in the middle of the grip part, so that not only the fit feeling when the grip part is held by hand is reduced, but the hair length of the brush is equivalent to the thickness of the cap. There was a problem that the feeling of use of the toothbrush was reduced, the brushing performance was lowered, and the gums were damaged.

本発明の目的は、歯ブラシの使用感を低下させることなく、小型で且つ意匠性に優れ、しかも手で持ったときのフィット感のあるキャップ付き歯ブラシを提供することである。 An object of the present invention is to provide a toothbrush with a cap that is compact and excellent in design, and has a fit when held by hand without reducing the feeling of use of the toothbrush.

本発明に係るキャップ付き歯ブラシは、植毛台に毛束を植設してなる植毛部と、手で把持するためのグリップ部と、植毛台とグリップ部とを接続する首部とを有する歯ブラシと、植毛部及び首部を覆うように前記歯ブラシに着脱自在に取り付けたキャップとを備えたキャップ付き歯ブラシであって、前記グリップ部の長さ方向の途中部に前記キャップとの係合部が形成され、前記歯ブラシの植毛台に対する毛束の植設側を正面側とし、反対側を背面側とした場合に、前記グリップ部における係合部側の基端部から先端部までのキャップとの嵌合部の断面形状が、正面側を頂角となし、背面側を底辺となし、３つの角部を円弧状となした２等辺三角形状であって、背面側部分が側方へ膨出する下膨れ形状に形成されるとともに、嵌合部の先端外周面が歯ブラシの首部に滑らかに連なるように、係合部から首部側へ行くにしたがって断面が略相似形で連続的に小さくなるように形成され、前記首部の側面視における正面側の外形線と嵌合部の側面視における正面側の外形線とが、連続的に連なった前方へ突出する円弧状の曲線で構成され、首部の側面視における背面側の外形線と嵌合部の背面とが略同一平面内に配置され、前記キャップの基部が嵌合部の基部に適合する内面形状に形成され、キャップの先端部が植毛部を取り囲む小判型に形成され、キャップの基部と先端部とが滑らかに連なるように形成され、前記キャップの先端部に植毛台の先端部を保持する保持部が設けられたものである。 A toothbrush with a cap according to the present invention is a toothbrush having a flocked portion formed by implanting a hair bundle on a flocked table, a grip portion for gripping by hand, and a neck portion connecting the flocked table and the grip portion, A toothbrush with a cap provided with a cap detachably attached to the toothbrush so as to cover the flocked part and the neck part, and an engaging part with the cap is formed in the middle part in the length direction of the grip part, The fitting part with the cap from the base end part of the engaging part side in the said grip part to a front-end | tip part when the planting side of the hair | bristle bundle with respect to the flocking table of the said toothbrush is made into the front side, and the other side is made into the back side. The cross-sectional shape is an isosceles triangle with the front side as the apex angle and the back side as the base, and the three corners in an arc shape, and the back side portion bulges to the side Formed outside the tip of the fitting As the surface is smoothly connected to the neck portion of the toothbrush, section toward the engaging portion to the neck side is formed to be continuously and slightly in shape similar to, and outline of the front side of the side view of the neck The outline of the front side in the side view of the fitting part is configured by a continuous arc-like curve protruding forward, and the outline of the back side in the side view of the neck part and the back of the fitting part are The cap base portion is formed in an inner surface shape that fits the base portion of the fitting portion, the cap tip portion is formed in an oval shape surrounding the flocked portion, and the cap base portion and tip end portion are arranged in substantially the same plane. It is formed so as to be smoothly connected, and a holding portion for holding the tip portion of the flocking table is provided at the tip portion of the cap.

このキャップ付き歯ブラシでは、歯ブラシの周方向位置とキャップの周方向位置とを適合させて、歯ブラシにキャップを嵌合させることになるが、このとき、歯ブラシの周方向位置とキャップの周方向位置とが多少ずれている場合でも、嵌合途中において、キャップの基部内面がグリップ部の嵌合部の外面に当接して、キャップが周方向に位置調整されながら嵌合するので、歯ブラシに対してキャップを容易に取り付けることができる。しかも、このようにキャップが周方向に位置調整されるので、植毛部のブラシの先端部がキャップ内面にできるだけ接触しないようにしつつ、歯ブラシに対してキャップを嵌合させることができ、キャップ内面との接触により植毛部の先端部が汚れたり、損傷したりするという不具合を防止できる。また、キャップを嵌合させた状態で、保持部により植毛台の先端部が保持されるので、ポーチ等に歯ブラシを収納したときに、植毛台がキャップ内面に当接してカタタカと異音を発することを防止できる。更に、キャップの基部を嵌合部の基部に適合する内面形状に形成し、キャップの先端部を、植毛部を取り囲む小判型に形成しているので、意匠性を低下させることなく、ブラッシングに最適な毛丈を確保することが可能となり、歯ブラシの使用感を十分に確保できる。 In this toothbrush with a cap, the circumferential position of the toothbrush and the circumferential position of the cap are matched, and the cap is fitted to the toothbrush. At this time, the circumferential position of the toothbrush and the circumferential position of the cap Even if there is a slight deviation, the inner surface of the base of the cap abuts against the outer surface of the fitting portion of the grip portion in the middle of fitting, and the cap is fitted while being adjusted in the circumferential direction. Can be easily attached. Moreover, since the cap is adjusted in the circumferential direction in this way, the cap can be fitted to the toothbrush while preventing the tip of the brush of the flocked portion from contacting the inner surface of the cap as much as possible. It is possible to prevent a problem that the tip of the flocked portion is soiled or damaged due to the contact. In addition, since the tip of the flocking table is held by the holding unit with the cap fitted, when the toothbrush is stored in the pouch or the like, the flocking table comes into contact with the inner surface of the cap and generates an abnormal noise with the rattle. Can be prevented. In addition, the base of the cap is formed into an inner surface shape that fits the base of the fitting part, and the tip of the cap is formed in an oval shape that surrounds the flocked part, making it ideal for brushing without reducing design It is possible to secure a sufficient bristle length and sufficiently secure the feeling of use of the toothbrush.

ここで、前記首部の背面とグリップ部の背面とが略同一平面内に配置されていることが好ましい実施の形態である。このように構成することで、キャップ付き歯ブラシの外形寸法を小さくしつつ植毛部の毛丈を十分に確保できる。また、グリップ部における段差をなくして、グリップ部を手で保持したときにおけるフィット感を向上できる。 Here, it is a preferred embodiment that the back surface of the neck portion and the back surface of the grip portion are arranged in substantially the same plane. By comprising in this way, the bristle part's bristle length can fully be ensured, making the external dimension of a toothbrush with a cap small. In addition, it is possible to improve the fit when the grip portion is held by hand by eliminating the step in the grip portion.

側面視において、前記首部の側面視における正面側の外形線とグリップ部の側面視における正面側の外形線とが、連続的に連なった前方へ突出する円弧状の曲線で構成されていることも好ましい実施の形態である。この場合には、歯ブラシのグリップ部を手で保持したときにおける納まりがよく、グリップ部における段差をなくして、グリップ部を手で保持したときにおけるフィット感を一層向上できる。特に、操作性を考慮すると、本発明は、電動歯ブラシのグリップ部の形状として好適に採用できる。 In the side view, the front side outline in the side view of the neck part and the front side outline in the side view of the grip part may be configured by an arcuate curve that projects continuously forward. This is a preferred embodiment. In this case, the fit when the grip portion of the toothbrush is held by hand is good, the step in the grip portion is eliminated, and the fit when the grip portion is held by hand can be further improved. In particular, considering operability, the present invention can be suitably employed as the shape of the grip portion of the electric toothbrush.

前記キャップの先端部内に植毛台をキャップの先端部側へ案内するガイド突起を形成することも好ましい実施の形態である。この場合には、ガイド突起により植毛台を案内しながら、歯ブラシに対してキャップを着脱できるので、キャップの着脱操作性を一層向上できる。 It is also a preferred embodiment to form a guide projection for guiding the flocking table toward the tip of the cap in the tip of the cap. In this case, since the cap can be attached to and detached from the toothbrush while guiding the flocking table with the guide protrusion, the detachability of the cap can be further improved.

前記キャップの途中部から先端部までの断面形状を略同じ寸法の小判型に形成することも好ましい実施の形態である。この場合には、キャップの基端部から途中部までの間において、植毛部がキャップの中央部側へ案内され、キャップの途中部から先端部までの間において植毛部の側方への移動が規制されるので、植毛部の側方への移動を早期に収束でき、キャップの着脱操作性を一層向上できる。 It is also a preferred embodiment that the cross-sectional shape from the middle part to the tip part of the cap is formed in an oval shape having substantially the same dimensions. In this case, between the base end portion of the cap and the middle portion, the flocked portion is guided to the center portion side of the cap, and the movement of the flocked portion to the side is between the middle portion of the cap and the tip portion. Since it is regulated, the lateral movement of the flocked portion can be converged at an early stage, and the cap detachability can be further improved.

前記キャップの先端部に蓋体を着脱可能に固定し、該蓋体に前記植毛台の保持部を形成することも可能である。このような別部材からなる蓋体を設けると、キャップ及び蓋体の成形性を向上できる。また、キャップ内面が汚れた場合には、蓋体を取り外して、キャップ内を容易に清掃できるので、キャップの清掃性を向上できる。 It is also possible to fix the lid to the tip of the cap so as to be detachable, and to form a holding part for the flocking table on the lid. Providing a lid made of such a separate member can improve the moldability of the cap and the lid. Further, when the inner surface of the cap becomes dirty, the lid can be removed and the inside of the cap can be easily cleaned, so that the cleaning property of the cap can be improved.

前記歯ブラシが、駆動部を内装したグリップ部と、グリップ部の先端部に着脱自在に取り付けられる替えブラシとを有する電動歯ブラシであることが好ましい実施の形態である。電動歯ブラシにおいては、グリップ部にモータや電池などを内装する必要があり、グリップの外形寸法がどうしても大きくなるので、歯ブラシの使用感を十分に確保しつつ、小型で且つ意匠性に優れたキャップ付き電動歯ブラシを実現するために、本発明のように構成することが好ましい。 In a preferred embodiment, the toothbrush is an electric toothbrush having a grip part with an internal drive part and a replacement brush that is detachably attached to a tip part of the grip part. In electric toothbrushes, it is necessary to install a motor, battery, etc. in the grip part, and since the external dimensions of the grip are inevitably large, a cap with a small size and excellent design is ensured while ensuring a sufficient feeling of use of the toothbrush In order to realize an electric toothbrush, it is preferable to configure as in the present invention.

本発明に係るキャップ付き歯ブラシによれば、歯ブラシの周方向位置とキャップの周方向位置とを適合させて、歯ブラシにキャップを嵌合させることになるが、このとき、歯ブラシの周方向位置とキャップの周方向位置とが多少ずれている場合でも、嵌合途中において、キャップの基部内面がグリップ部の嵌合部の外面に当接して、キャップが周方向に位置調整されながら嵌合するので、歯ブラシに対してキャップを容易に取り付けることができる。しかも、このようにキャップが周方向に位置調整されるので、植毛部のブラシの先端部がキャップ内面にできるだけ接触しないようにしつつ、歯ブラシに対してキャップを嵌合させることができ、キャップ内面との接触により植毛部の先端部が汚れたり、損傷したりするという不具合を防止できる。また、キャップを嵌合させた状態で、保持部により植毛台の先端部が保持されるので、ポーチ等に歯ブラシを収納したときに、植毛台がキャップ内面に当接してカタタカと異音を発することを防止できる。更に、キャップの基部を嵌合部の基部に適合する内面形状に形成し、キャップの先端部を、植毛部を取り囲む小判型に形成しているので、意匠性を低下させることなく、ブラッシングに最適な毛丈を確保することが可能となり、歯ブラシの使用感を十分に確保できる。 According to the toothbrush with a cap according to the present invention, the circumferential position of the toothbrush and the circumferential position of the cap are adapted to fit the cap into the toothbrush. At this time, the circumferential position of the toothbrush and the cap Even when the position in the circumferential direction is slightly shifted, the base inner surface of the cap abuts on the outer surface of the fitting portion of the grip portion in the middle of the fitting, and the cap is fitted while being adjusted in the circumferential direction. The cap can be easily attached to the toothbrush. Moreover, since the cap is adjusted in the circumferential direction in this way, the cap can be fitted to the toothbrush while preventing the tip of the brush of the flocked portion from contacting the inner surface of the cap as much as possible. It is possible to prevent a problem that the tip of the flocked portion is soiled or damaged due to the contact. In addition, since the tip of the flocking table is held by the holding unit with the cap fitted, when the toothbrush is stored in the pouch or the like, the flocking table comes into contact with the inner surface of the cap and generates an abnormal noise with the rattle. Can be prevented. In addition, the base of the cap is formed into an inner surface shape that fits the base of the fitting part, and the tip of the cap is formed in an oval shape that surrounds the flocked part, making it ideal for brushing without reducing design It is possible to secure a sufficient bristle length and sufficiently secure the feeling of use of the toothbrush.

キャップ付き電動歯ブラシの斜視図Perspective view of electric toothbrush with cap キャップ付き電動歯ブラシのキャップを取り外した状態での斜視図Perspective view with cap of electric toothbrush with cap removed キャップ付き電動歯ブラシの（ａ）は平面図、（ｂ）は正面図、（ｃ）は右側面図、（ｄ）は背面図(A) of the electric toothbrush with a cap is a plan view, (b) is a front view, (c) is a right side view, and (d) is a rear view. 電動歯ブラシの（ａ）は平面図、（ｂ）は正面図、（ｃ）は右側面図、（ｄ）は背面図(A) of the electric toothbrush is a plan view, (b) is a front view, (c) is a right side view, and (d) is a rear view. 図３（ｂ）のV-V線断面図Sectional view taken along the line V-V in FIG. 図３（ｂ）のVI-VI線断面図Sectional view taken along line VI-VI in Fig. 3 (b) 蓋体の（ａ）は平面、（ｂ）は正面図、（ｃ）は右側面図、（ｄ）は底面図(A) of the lid is a plane, (b) is a front view, (c) is a right side view, and (d) is a bottom view. フリップ部の嵌合部の背面図Rear view of the fitting part of the flip part 嵌合部の位置と周長の変化量の関係を示すグラフGraph showing the relationship between the position of the mating part and the amount of change in circumference （ａ）〜（ｄ）は電動歯ブラシに対するキャップの嵌合過程を段階的に示す説明図(A)-(d) is explanatory drawing which shows the fitting process of the cap with respect to an electric toothbrush in steps. 図１０（ａ）の（ａ）はａ−ａ線断面図、（ｂ）はｂ−ｂ線断面図10A is a sectional view taken along the line aa, and FIG. 10B is a sectional view taken along the line bb. 図１０（ｂ）の（ａ）はａ−ａ線断面図、（ｂ）はｂ−ｂ線断面図10A is a cross-sectional view taken along the line aa, and FIG. 10B is a cross-sectional view taken along the line bb. 図１０（ｃ）の（ａ）はａ−ａ線断面図、（ｂ）はｂ−ｂ線断面図10A is a cross-sectional view taken along the line aa, and FIG. 10B is a cross-sectional view taken along the line bb. 図１０（ｄ）の（ａ）はａ−ａ線断面図、（ｂ）はｂ−ｂ線断面図10A is a cross-sectional view taken along the line aa, and FIG. 10B is a cross-sectional view taken along the line bb.

以下、本発明の実施の形態について図面を参照しながら説明する。
図１〜図７に示すように、キャップ付き電動歯ブラシ１は、植毛台１１に毛束１２を植設してなる植毛部１３と、手で把持するためのグリップ部１４と、植毛台１１とグリップ部１４とを接続する首部１５とを有する電動歯ブラシ１０と、植毛部１３及び首部１５を覆うように電動歯ブラシ１０に着脱自在に取り付けたキャップ３０とを備えている。なお、本発明は、電動歯ブラシ１０に好適に採用できるが、歯ブラシの外形寸法を以下に説明する電動歯ブラシ１０と同様に設定することで、手動の歯ブラシに対しても、同様に適用することができる。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1 to FIG. 7, the electric toothbrush 1 with a cap includes a flocking portion 13 formed by implanting a hair bundle 12 on a flocking table 11, a grip portion 14 for gripping by hand, and a flocking table 11. The electric toothbrush 10 which has the neck part 15 which connects the grip part 14 is provided, and the cap 30 which was attached to the electric toothbrush 10 so that attachment or detachment was possible so that the flocking part 13 and the neck part 15 might be covered. In addition, although this invention can be employ | adopted suitably for the electric toothbrush 10, it can apply similarly also to a manual toothbrush by setting the external dimension of a toothbrush similarly to the electric toothbrush 10 demonstrated below. it can.

グリップ部１４の先端部には植毛部１３と首部１５とを有する替えブラシ１６が着脱可能に取り付けられている。替えブラシ１６を取り付けるためグリップ部１４の先端部には円柱状の係合突部１７が形成され、係合突部１７の外周面には略Ｌ字状の１対の係止溝１８が周方向に間隔をあけて形成されている。替えブラシ１６の基部には係合突部１７に外嵌する円筒状の取付部材１９が設けられ、取付部材１９の内面には係止溝１８に嵌合する１対の係止部２０が突出状に形成され、替えブラシ１６は、１対の係止部２０を１対の係止溝１８にそれぞれ係合させながら、取付部材１９を係合突部１７の根元まで嵌合させて、替えブラシ１６を周方向に一定角度回転させることで、脱落しないようにグリップ部１４に取り付けられている。なお、１対の係止溝１８は、相互に異なる溝幅に構成され、特定の係止部２０にのみ係合するように構成されており、替えブラシ１６をグリップ部１４に取り付けた状態で、グリップ部１４の周方向位置と替えブラシ１６の周方向位置とが常に同じ位置になるように構成されている。 A replacement brush 16 having a flocked portion 13 and a neck portion 15 is detachably attached to the distal end portion of the grip portion 14. In order to attach the replacement brush 16, a cylindrical engagement protrusion 17 is formed at the tip of the grip portion 14, and a pair of substantially L-shaped locking grooves 18 are formed on the outer peripheral surface of the engagement protrusion 17. It is formed at intervals in the direction. A cylindrical mounting member 19 that is externally fitted to the engaging protrusion 17 is provided at the base of the replacement brush 16, and a pair of locking portions 20 that are fitted into the locking grooves 18 protrude from the inner surface of the mounting member 19. The replacement brush 16 is formed by fitting the attachment member 19 to the base of the engagement protrusion 17 while engaging the pair of locking portions 20 with the pair of locking grooves 18 respectively. The brush 16 is attached to the grip portion 14 so as not to fall off by rotating the brush 16 by a certain angle in the circumferential direction. The pair of locking grooves 18 are configured to have mutually different groove widths and are configured to engage only with a specific locking portion 20, with the replacement brush 16 attached to the grip portion 14. The circumferential position of the grip portion 14 and the circumferential position of the replacement brush 16 are always the same.

グリップ部１４の長さ方向の途中部には周方向に延びる環状溝からなる係合部２１が形成され、グリップ部１４における係合部２１よりも先端部側にはキャップ３０が外嵌される嵌合部２２が形成され、係合部２１よりも基端部側には筒状の基部ケース２３が着脱自在に取り付けられている。 An engaging portion 21 formed of an annular groove extending in the circumferential direction is formed in the middle portion of the grip portion 14 in the length direction, and a cap 30 is externally fitted on the distal end side of the grip portion 14 with respect to the engaging portion 21. A fitting part 22 is formed, and a cylindrical base case 23 is detachably attached to the base end side of the engaging part 21.

グリップ部１４には植毛部１３を駆動するための駆動部２４が内装されている。駆動部２４は、グリップ部１４の嵌合部２２内に内装したモータ２５と、モータ２５の回転軸２６に固定した偏心錘２７と、グリップ部１４の基部ケース２３に交換可能に内装した電池２８とを備え、電池２８によりモータ２５を駆動して偏心錘２７を回転させ、偏心錘２７の回転により発生する振動をグリップ部１４から替えブラシ１６の植毛部１３に伝達するように構成したものである。ただし、駆動部２４としては、モータの回転運動を往復直線運動に切り替える変換手段を備え、替えブラシをその長さ方向に往復直線運動させるように構成したものや、モータの回転運動を往復反転運動に切り替える変換手段を備え、毛束の植設方向を中心として植毛部を正方向に一定角度回転させてから、逆方向に一定角度回転させるという往復反転運動を繰り返し行うように構成したものや、永久磁石とコイルとを用いて替えブラシを振動させるように構成したものなど、周知の駆動部を備えさせることも可能である。なお、符号２９は、モータ２５への通電をＯＮ状態とＯＦＦ状態とに切換え可能な押しボタン式の電源スイッチである。 The grip portion 14 is internally provided with a drive portion 24 for driving the flocked portion 13. The drive unit 24 includes a motor 25 housed in the fitting part 22 of the grip part 14, an eccentric weight 27 fixed to the rotating shaft 26 of the motor 25, and a battery 28 housed in a base case 23 of the grip part 14 in a replaceable manner. And the motor 28 is driven by the battery 28 to rotate the eccentric weight 27, and the vibration generated by the rotation of the eccentric weight 27 is transmitted from the grip portion 14 to the flocked portion 13 of the replacement brush 16. is there. However, the drive unit 24 is provided with conversion means for switching the rotational motion of the motor to a reciprocating linear motion, and is configured to reciprocate the replacement brush in a reciprocating linear motion in the length direction, or the reciprocating reversal motion of the motor. A reversing reversal motion of rotating the flocked portion in the forward direction at a fixed angle around the hair bundle planting direction and then rotating in a reverse direction at a fixed angle, It is also possible to provide a known drive unit such as one configured to vibrate the replacement brush using a permanent magnet and a coil. Reference numeral 29 denotes a push button type power switch that can switch the energization of the motor 25 between an ON state and an OFF state.

グリップ部１４の嵌合部２２の断面形状は、植毛台１１に対する毛束１２の植設側を正面側とし、反対側を背面側とした場合に、正面側を頂角となし、背面側を底辺となし、３つの角部を円弧状となした２等辺三角形状であって、背面側部分が側方へ膨出する下膨れ形状に形成されている。具体的には、図６に示すように、背面側の両側部には側部アールＧＲ１が形成され、正面側には側部アールＧＲ１よりも緩やかに湾曲する頂部アールＧＲ２が形成され、両側面には頂部アールＧＲ２よりも緩やかに湾曲する側面アールＧＲ３が形成され、背面側には側部アールＧＲ１よりも緩やかに湾曲する背面アールＧＲ４が形成された、２等辺三角形状であって、背面側部分が側方へ膨出する下膨れ形状に形成されるとともに、嵌合部２２の先端外周面が替えブラシ１６の首部１５に滑らかに連なるように、係合部から首部１５側へ行くにしたがって断面が略相似形で連続的に小さくなるように形成されている。 The cross-sectional shape of the fitting part 22 of the grip part 14 is such that when the planting side of the hair bundle 12 with respect to the flocking table 11 is the front side and the opposite side is the back side, the front side is the apex angle and the back side is It is a base and has an isosceles triangle shape with three corners formed in an arc shape, and is formed in a downwardly bulging shape in which a rear side portion bulges to the side. Specifically, as shown in FIG. 6, side portions GR1 are formed on both sides on the back side, and a top portion GR2 that is curved more gently than the side portions GR1 is formed on the front side. Is formed with an isosceles triangular shape in which a side surface GR3 that is gently curved than the top portion radius GR2 is formed, and a rear surface radius GR4 that is curved more gently than the side portion radius GR1 is formed on the back surface side. The section is formed in a downward bulge shape that bulges to the side, and a cross section as it goes from the engagement portion toward the neck portion 15 so that the outer peripheral surface of the fitting portion 22 is smoothly connected to the neck portion 15 of the replacement brush 16. Are substantially similar and formed to be continuously smaller.

基部ケース２３の係合部２１側の先端部は嵌合部２２の基端部に係合部２１を挟んで段差なく滑らかに連なるように形成され、基部ケース２３の基端部は略円形に形成され、基部ケース２３の外周面は、その先端部の下膨れ形状から、それよりも小径の基端部の円形状に、断面形状が滑らかに変化するように構成されている。 The distal end portion of the base case 23 on the side of the engaging portion 21 is formed so as to be smoothly connected to the base end portion of the fitting portion 22 across the engaging portion 21 without a step, and the base end portion of the base case 23 is substantially circular. The outer peripheral surface of the base case 23 is formed so that the cross-sectional shape smoothly changes from the bottom bulging shape of the tip portion to the circular shape of the base end portion having a smaller diameter.

図４に示すように、替えブラシ１６の背面側の稜線ＳＢＬとグリップ部１４の背面１４ａとは略同一平面内に配置され、替えブラシ１６の正面側の稜線ＳＦＬとグリップ部１４の正面側の稜線ＧＦＬとは、連続的に連なった前方へ突出する円弧状の曲線で構成され、グリップ部１４は、手で把持したときに手にフィットする形状に形成されている。 As shown in FIG. 4, the ridge line SBL on the back side of the replacement brush 16 and the back surface 14 a of the grip part 14 are arranged in substantially the same plane, and the ridge line SFL on the front side of the replacement brush 16 and the front side of the grip part 14 are arranged. The ridge line GFL is composed of a continuous arc-shaped curve projecting forward, and the grip portion 14 is formed in a shape that fits the hand when gripped by the hand.

ここで、嵌合部２２の外観形状の近似計算について説明する。
図８に示すように、嵌合部２２の先端部からの長さをｘとし、長さｘの位置における嵌合部２２の外周長をｙとし、ｘ＝０のときの外周長ｙをＢとし、係数をＡとすると、近似式ｙ＝Ａｌｎｘ＋Ｂが、５０ｍｍ≧ｘ≧２０ｍｍのときに成立する。 Here, the approximate calculation of the external shape of the fitting part 22 is demonstrated.
As shown in FIG. 8, the length from the tip of the fitting portion 22 is x, the outer circumference length of the fitting portion 22 at the position of the length x is y, and the outer circumference length y when x = 0 is B. Assuming that the coefficient is A, the approximate expression y = Alnx + B is established when 50 mm ≧ x ≧ 20 mm.

そこで、嵌合部２２の周長の変化量ｙの近似式、即ち定数Ｂ＝０のときの近似式ｙ＝Ａｌｎｘを用い、係数Ａを５、６．３７０２、１４、１６に設定した場合における、嵌合部２２の先端部からの長さｘと、嵌合部２２の周長の変化量ｙの関係を求めた。その結果を図９に示す。 Therefore, an approximate expression of the amount of change y of the circumference of the fitting portion 22, that is, an approximate expression y = Alnx when the constant B = 0 is used, and the coefficient A is set to 5, 6.3702, 14, 16 The relationship between the length x from the tip of the fitting portion 22 and the amount of change y in the circumferential length of the fitting portion 22 was obtained. The result is shown in FIG.

図９から係数Ａが５未満の場合には、周長の変化量が小さくなり過ぎて、嵌合部２２が略円柱になって、持ち難くなり、係数Ａが１６を超えると周長の変化量が大きくなりすぎ、嵌合部２２の長さをその内部にモータ２５を収容可能な長さに設定すると、嵌合部２２の基部が太くなり過ぎて持ちにくくなるので、係数Ａは５以上で１６以下、好ましくは５以上で１４以下、更に好ましくは５以上で１０以下に設定することが好ましい。 From FIG. 9, when the coefficient A is less than 5, the amount of change in the circumferential length becomes too small, the fitting portion 22 becomes substantially cylindrical, and it becomes difficult to hold, and when the coefficient A exceeds 16, the circumferential length changes. If the amount becomes too large and the length of the fitting portion 22 is set to a length that can accommodate the motor 25 therein, the base portion of the fitting portion 22 becomes too thick and difficult to hold, so the coefficient A is 5 or more. It is preferably set to 16 or less, preferably 5 or more and 14 or less, more preferably 5 or more and 10 or less.

キャップ３０の基端内面には係合部２１に係脱可能な係合突部３７が形成され、キャップ３０は、替えブラシ１６及び嵌合部２２に外嵌させて、グリップ部１４の係合部２１に係合突部３７を係合させることで、電動歯ブラシ１０に着脱自在に取り付けられている。 An engagement protrusion 37 that can be engaged with and disengaged from the engagement portion 21 is formed on the inner surface of the base end of the cap 30, and the cap 30 is externally fitted to the replacement brush 16 and the engagement portion 22 to engage the grip portion 14. By engaging the engaging protrusion 37 with the portion 21, the electric toothbrush 10 is detachably attached.

キャップ３０の基端内面には嵌合部２２の基部外面に隙間なく外嵌合するように、グリップ部１４における係合部２１側の基端部から先端部までのキャップ３０との嵌合部２２の断面形状が、正面側を頂角となし、背面側を底辺となし、３つの角部を円弧状となした２等辺三角形状であって、下膨れ状の内面形状に形成されている。具体的には、図６に示すように、キャップ３０の基端内面における、背面側の両側部には側部アールＣＲ１が形成され、正面側には側部アールＣＲ１よりも緩やかに湾曲する頂部アールＣＲ２が形成され、両側面には頂部アールＣＲ２よりも緩やかに湾曲する側面アールＣＲ３が形成され、背面側には側部アールＣＲ１よりも緩やかに湾曲する背面アールＣＲ４が形成されて、キャップ３０の基端内面が２等辺三角形状に形成されている。キャップ３０の先端部は植毛部１３を取り囲むように、左右の側壁部３０ａが略平行な平板状で、正面側と背面側の壁部３０ｂが半円状の小判型に形成され、キャップ３０の基端部の正面と背面間の距離はキャップ３０の先端部の正面と背面間の距離と略同じに設定され、キャップ３０の側面間の距離は基端部から先端部側へ行くにしたがって幅狭となるように構成され、キャップ３０の途中部は、キャップ３０の基部から先端部へ向けて滑らかに断面形状が変化するように形成されている。 The fitting portion with the cap 30 from the proximal end portion on the engagement portion 21 side to the distal end portion of the grip portion 14 so as to be fitted to the inner surface of the proximal end of the cap 30 without gaps on the outer surface of the fitting portion 22. The cross-sectional shape of 22 is an isosceles triangular shape having a front side as an apex angle and a back side as a bottom side, and three corners in an arc shape, and is formed into a downwardly bulging inner surface shape. Specifically, as shown in FIG. 6, on the inner surface of the base end of the cap 30, side portions CR <b> 1 are formed on both sides on the back side, and the top portion is curved more gently than the side portion CR <b> 1 on the front side. A round CR2 is formed, a side round CR3 that is gently curved than the top round CR2 is formed on both sides, and a back round CR4 that is curved more gently than the side round CR1 is formed on the back side. Is formed in the shape of an isosceles triangle. The front end of the cap 30 is formed in a flat plate shape in which the left and right side wall portions 30 a are substantially parallel so as to surround the flocked portion 13, and the front and rear side wall portions 30 b are formed in a semicircular oval shape. The distance between the front surface and the back surface of the base end portion is set to be substantially the same as the distance between the front surface and the back surface of the front end portion of the cap 30, and the distance between the side surfaces of the cap 30 is a width as it goes from the base end portion to the front end portion side. It is comprised so that it may become narrow, and the intermediate part of the cap 30 is formed so that a cross-sectional shape may change smoothly toward the front-end | tip part from the base part of the cap 30. FIG.

キャップ３０の途中部から先端部まで、具体的にはキャップ３０の先端部からキャップ３０全長の１／３程度の範囲には、断面形状が略同じ寸法の小判型に形成されたストレート部３１が形成され、キャップ３０の基端部からキャップ３０全長の２／３程度の範囲の側壁部には、基端部から先端部側へ行くにしたがって幅狭となる案内部３２が形成され、電動歯ブラシ１０を替えブラシ１６側からキャップ３０に挿入すると、植毛部１３が案内部３２の内面に当接してキャップ３０の幅方向の中央部側へ案内されるように構成されている。キャップ３０の先端部内には植毛台１１をキャップ３０の先端部側へ案内する１対のガイド突起３３がキャップ３０の長さ方向に形成され、植毛台１１の背面をガイド突起３３で浮かせてキャップ３０の内面に密着させないことで、植毛台１１に対する汚れの付着を極力防止できるように構成されている。 From the middle part of the cap 30 to the tip part, specifically, in the range of about 1/3 of the entire length of the cap 30 from the tip part of the cap 30, a straight part 31 formed in an oval shape having substantially the same cross-sectional shape is provided. An electric toothbrush is formed on the side wall portion that is formed and is about 2/3 of the total length of the cap 30 from the proximal end portion of the cap 30 and becomes narrower as it goes from the proximal end portion toward the distal end portion side. When 10 is inserted into the cap 30 from the replacement brush 16 side, the flocked portion 13 abuts against the inner surface of the guide portion 32 and is guided to the center portion side in the width direction of the cap 30. A pair of guide projections 33 for guiding the flocking table 11 toward the tip of the cap 30 are formed in the length direction of the cap 30 in the tip portion of the cap 30, and the back surface of the flocking table 11 is floated by the guide projection 33 to cap the cap. By not sticking to the inner surface of 30, it is configured to prevent the adhesion of dirt to the flocking table 11 as much as possible.

キャップ３０の先端部には蓋体３５が着脱可能に固定され、蓋体３５には植毛台１１の先端部を保持する保持部が形成されている。保持部としては、図７に示すように、植毛台１１の先端部の背面側に当接可能な背面側保持部３６ａと、植毛台１１の先端部の両側部の正面側に当接可能な正面側保持部３６ｂと、植毛台１１の両側部の先端部に当接する側部保持部３６ｃと、植毛台１１の先端部の中央部に当接する先端保持部３６ｄとを備えており、植毛台１１は、キャップ３０を電動歯ブラシ１０に嵌合させた状態で、背面側保持部３６ａと正面側保持部３６ｂとにより前後方向への移動が規制され、側部保持部３６ｃにより左右方向の移動が規制され、先端保持部３６ｄにより上方への移動が規制された状態で、キャップ３０内に保持される。なお、符号３８は水抜き用の孔であり、符号３９は蓋体３５をキャップ３０に固定するために蓋体３５に設けた固定片である。 A lid body 35 is detachably fixed to the distal end portion of the cap 30, and a holding portion that holds the distal end portion of the flocking table 11 is formed on the lid body 35. As shown in FIG. 7, the holding part can be in contact with the back side holding part 36 a that can come into contact with the back side of the tip part of the flocking table 11 and the front side of both side parts of the tip part of the flocking table 11. The front side holding part 36b, the side part holding part 36c which contacts the tip part of the both sides of the flocking table 11, and the front end holding part 36d which abuts the center part of the front part of the flocking table 11 are provided. 11 is a state in which the cap 30 is fitted to the electric toothbrush 10, movement in the front-rear direction is restricted by the back side holding part 36 a and the front side holding part 36 b, and movement in the left and right direction is restricted by the side part holding part 36 c. It is restricted and held in the cap 30 in a state where the upward movement is restricted by the tip holding portion 36d. Reference numeral 38 is a hole for draining water, and reference numeral 39 is a fixing piece provided on the lid body 35 in order to fix the lid body 35 to the cap 30.

次に、キャップ付き電動歯ブラシ１の嵌合方法について説明する。
このキャップ付き電動歯ブラシ１では、電動歯ブラシ１０の周方向位置とキャップ３０の周方向位置とを合致させて、電動歯ブラシ１０にキャップ３０を嵌合させることになるが、このとき、電動歯ブラシ１０の植毛台１１は、案内部３２の内面で幅方向に案内されて、ストレート部３１内に挿入され、蓋部３５の保持部３６ａ〜３６ｄにより幅方向（左右方向）及び前後方向に移動しないように保持されることになる。また、グリップ部１４の嵌合部２２にはキャップ３０の案内部３２が外嵌されることになるが、このとき電動歯ブラシ１０の周方向位置とキャップ３０の周方向位置とが周方向に多少ずれている場合でも、図１０（ａ）、図１１に示すように、嵌合途中において、例えばキャップ３０内面の左側の側面アールＣＲ３と、背面アールＣＲ４と、右側の側面アールＣＲ３とが、嵌合部２２の頂部アールＧＲ２と、左側の側部アールＧＲ１と、右側の側部アールＧＲ１とにそれぞれ当接しながら、図１０（ａ）〜（ｃ）及び図１１〜図１３に示すように、キャップ３０が矢印Ａで示す方向へ微小回転して、図１０（ｄ）及び図１４に示すように、キャップ３０の案内部３２がグリップ部１４の嵌合部２２の周方向の適正位置に嵌合することになり、キャップ３０が周方向に位置調整されながら嵌合するので、電動歯ブラシ１０に対してキャップ３０を容易に嵌合させることが可能となる。 Next, the fitting method of the electric toothbrush 1 with a cap is demonstrated.
In this electric toothbrush 1 with a cap, the circumferential position of the electric toothbrush 10 and the circumferential position of the cap 30 are matched, and the cap 30 is fitted to the electric toothbrush 10. The flocking table 11 is guided in the width direction on the inner surface of the guide portion 32 and is inserted into the straight portion 31 so as not to move in the width direction (left-right direction) and the front-rear direction by the holding portions 36 a to 36 d of the lid portion 35. Will be retained. Further, the guide portion 32 of the cap 30 is externally fitted to the fitting portion 22 of the grip portion 14, and at this time, the circumferential position of the electric toothbrush 10 and the circumferential position of the cap 30 are somewhat in the circumferential direction. Even in the case of misalignment, as shown in FIGS. 10 (a) and 11, during the fitting, for example, the left side RCR3, the back RCR4, and the right side RCR3 of the inner surface of the cap 30 are fitted. As shown in FIGS. 10 (a) to 10 (c) and FIGS. 11 to 13, while abutting on the apex radius GR 2, the left side radius R GR 1, and the right side radius R GR 1, respectively. The cap 30 is slightly rotated in the direction indicated by the arrow A, and the guide portion 32 of the cap 30 is fitted at an appropriate position in the circumferential direction of the fitting portion 22 of the grip portion 14 as shown in FIGS. Will match, Because cap 30 is positioned adjusted in the circumferential direction while mating, it is possible to cap 30 easily fitted to the electric toothbrush 10.

このようにキャップ３０が周方向に位置調整されながら、電動歯ブラシ１０に対してキャップ３０が嵌合するので、植毛部１３のブラシの先端部がキャップ３０内面にできるだけ接触しないようにしながら、キャップ３０を嵌合させることが可能となり、キャップ３０内面との接触により植毛部１３の先端部が汚れたり、損傷したりするという不具合を防止できる。また、キャップ３０を嵌合させた状態で、保持部３６ａ〜３６ｄにより植毛台１１の先端部が保持されるので、ポーチ等に電動歯ブラシ１０を収納したときに、植毛台１１がキャップ３０内面に当接してカタタカと異音を発することを防止できる。更に、キャップ３０の基部を嵌合部２２の基部に適合する内面形状に形成し、キャップ３０の先端部を、植毛部１３を取り囲む小判型に形成しているので、意匠性を低下させることなく、ブラッシングに最適な毛丈を確保することが可能となり、電動歯ブラシ１０の使用感を十分に確保できる。 Since the cap 30 is fitted to the electric toothbrush 10 while the position of the cap 30 is adjusted in the circumferential direction in this way, the cap 30 is made while preventing the tip of the brush of the flocked portion 13 from contacting the inner surface of the cap 30 as much as possible. Can be fitted, and the problem that the tip of the flocked portion 13 is soiled or damaged due to contact with the inner surface of the cap 30 can be prevented. Moreover, since the front-end | tip part of the flocking base 11 is hold | maintained by the holding parts 36a-36d in the state which fitted the cap 30, when the electric toothbrush 10 is accommodated in a pouch etc., the flocking base 11 will be in cap 30 inner surface. It is possible to prevent contact and noise from coming out. Furthermore, since the base part of the cap 30 is formed in an inner surface shape that matches the base part of the fitting part 22, and the tip part of the cap 30 is formed in an oval shape surrounding the flocked part 13, the design is not deteriorated. It is possible to ensure the optimum bristle length for brushing, and to sufficiently ensure the feeling of use of the electric toothbrush 10.

以上、本発明の実施形態について説明したが、本発明は前述した実施形態に何ら限定されるものではなく、本発明の要旨を逸脱しない範囲においてその構成を変更し得ることは勿論である。 The embodiment of the present invention has been described above. However, the present invention is not limited to the above-described embodiment, and it goes without saying that the configuration can be changed without departing from the gist of the present invention.

１キャップ付き電動歯ブラシ
１０電動歯ブラシ１１植毛台
１２毛束１３植毛部
１４グリップ部１４ａ背面
１５首部１６替えブラシ
１７係合突部１８係止溝
１９取付部材２０係止部
２１係合部２２嵌合部
２３基部ケース２４駆動部
２５モータ２６回転軸
２７偏心錘２８電池
２９電源スイッチ
３０キャップ３０ａ側壁部
３０ｂ壁部３１ストレート部
３２案内部３３ガイド突起
３５蓋体３６ａ背面側保持部
３６ｂ正面側保持部３６ｃ側部保持部
３６ｄ先端保持部３７係合突部
３８孔３９固定片
ＣＲ１側部アールＣＲ２頂部アール
ＣＲ３側面アールＣＲ４背面アール
ＧＦＬ稜線
ＧＲ１側部アールＧＲ２頂部アール
ＧＲ３側面アールＧＲ４背面アール
ＳＢＬ稜線ＳＦＬ稜線
DESCRIPTION OF SYMBOLS 1 Electric toothbrush with a cap 10 Electric toothbrush 11 Flocking table 12 Hair bundle 13 Hair transplantation part 14 Grip part 14a Back surface 15 Neck part 16 Replacement brush 17 Engagement protrusion 18 Locking groove 19 Attachment member 20 Locking part 21 Engagement part 22 Fitting Part 23 Base case 24 Drive part 25 Motor 26 Rotating shaft 27 Eccentric weight 28 Battery 29 Power switch 30 Cap 30a Side wall part 30b Wall part 31 Straight part 32 Guide part 33 Guide protrusion 35 Lid 36a Rear side holding part 36b Front side holding part 36c Side holding part 36d Tip holding part 37 Engaging protrusion 38 Hole 39 Fixed piece CR1 Side part CR2 Top part CR3 Side face CR4 Back face GFL Ridge line GR1 Side part GR2 Ridgeline

Claims

A toothbrush having a flocked part formed by planting a hair bundle on a flocking table, a grip part for gripping by hand, and a neck part connecting the flocking table and the grip part, and so as to cover the flocked part and the neck part A toothbrush with a cap provided with a cap detachably attached to the toothbrush,
An engaging portion with the cap is formed in the middle of the grip portion in the length direction,
The fitting part with the cap from the base end part of the engaging part side in the said grip part to a front-end | tip part when the planting side of the hair | bristle bundle with respect to the flocking table of the said toothbrush is made into the front side, and the other side is made into the back side. The cross-sectional shape is an isosceles triangle with the front side as the apex angle and the back side as the base, and the three corners in an arc shape, and the back side portion bulges to the side Formed so that the cross-section is substantially similar and continuously smaller as it goes from the engagement portion to the neck side so that the tip outer peripheral surface of the fitting portion is smoothly connected to the neck portion of the toothbrush,
Wherein the outline of the front side of the side view of the outline and the fitting portion of the front side of the side view of the neck is constituted by an arcuate curve protrudes forward with continuous continuously, back in the side view of the neck The outer contour line on the side and the back surface of the fitting portion are arranged in substantially the same plane,
The base part of the cap is formed in an inner surface shape that fits the base part of the fitting part, the tip part of the cap is formed in an oval shape surrounding the flocked part, and the base part of the cap and the tip part are formed so as to be smoothly connected,
A holding part for holding the tip of the flocking table is provided at the tip of the cap.
A toothbrush with a cap characterized by that.

The toothbrush with a cap according to claim 1, wherein a back surface of the neck portion and a back surface of the grip portion are arranged in substantially the same plane.

And outline of the front side of the side view of the outline and the grip portion of the front side of the side view of the neck is continuously continuous anterior arcuate claim 1 or 2, wherein composed of a curve protruding to the Toothbrush with cap.

The toothbrush with a cap of any one of Claims 1-3 which formed the guide protrusion which guides the flocking table to the front-end | tip part side of the cap in the front-end | tip part of the said cap.

The toothbrush with a cap of any one of Claims 1-4 which formed the cross-sectional shape from the middle part of the said cap to the front-end | tip part in the oval type | mold of the substantially same dimension.

The toothbrush with a cap according to any one of claims 1 to 5, wherein a lid body is detachably fixed to a tip portion of the cap, and a holding portion for the flock base is formed on the lid body.

The electric toothbrush with a cap according to any one of claims 1 to 6, wherein the toothbrush is an electric toothbrush having a grip part with an internal drive part and a replacement brush that is detachably attached to a tip part of the grip part.