WO2002094057A1

WO2002094057A1 - Toothbrush

Info

Publication number: WO2002094057A1
Application number: PCT/JP2002/004957
Authority: WO
Inventors: Masanori Sato
Original assignee: Masanori Sato
Priority date: 2001-05-22
Filing date: 2002-05-22
Publication date: 2002-11-28
Also published as: JP2005046164A

Abstract

A toothbrush in which even if a tooth surface has an uneven or steep slope, a bristle bundle touches the tooth surface with a substantially uniform pressure to ensure removal of plaque and the like. It comprises a movable section (6) including a bristle-set surface having the bristle bundle set therein, and a support section (4) including a handle section (2) and supporting the movable section, wherein the movable section (6) is supported tiltably with respect to the support section (4) through spring members (12) to provide a bristle-set body.

Description

Specification

Toothbrush technical field

The present invention relates to a toothbrush capable of applying a bristle bundle to a tooth surface with a substantially uniform pressure even when the tooth surface has irregularities or steep slopes, thereby enabling removal of plaque and the like from the recesses and steep slopes. Background art

The present applicant discloses in Japanese Patent Application Laid-Open No. 6-169814 that when the brush moves from the cervical portion of the tooth toward the occlusal surface, or when the brush moves from the occlusal surface toward the cervical portion, Also disclosed a toothbrush implanted at an inclined angle in which the bristles face the occlusal surface and rub against the tooth side surfaces. According to this conventional technology, it is possible to prevent gingival exfoliation from the cervical region without damaging soft tissues in the oral cavity such as gingiva, and to remove calculus, dentinal hills and the like from the tooth surface, thereby improving the health of teeth. It became possible to maintain it.

The actual tooth surface has irregularities such as steps caused by caries and concave and raised parts such as interdental spaces.In the case of such a tooth surface, a convex part is obtained with a conventional toothbrush. Because the hair bundles hitting the hairs act like spacers and the hair bundles facing the recess cannot enter the deep part of the recess, the toothbrush was operated diagonally, but the hair on the planted surface As long as the angle was fixed, it was not possible to clean the tooth surfaces, especially the concave parts. In addition, the shape of the teeth is not uniform and may have various slopes depending on the person and location, and especially in the case of a toothbrush having a flocked surface which is kept almost vertical during use, It was difficult to accommodate the steep slope of the teeth, either upward or downward. Disclosure of the invention

Therefore, there has been a demand for a toothbrush capable of reliably removing plaque and the like, even if the tooth surface has irregularities or a steeply inclined surface, with the bristle bundle hitting the tooth surface with almost uniform pressure.

In order to solve the above problem, a toothbrush according to claim 1 has a movable part including a flocked surface on which a bristle bundle is planted, and a support part including a 抦 part and supporting the movable part. It is a flocked body supported via a resilient member so as to be tiltable with respect to the support portion.

With this configuration, if the tooth surface has irregularities, the bristle bundle contacts the convex part with high pressure, and receives high pressure from the convex part as a reaction, but at this time, the flocked body received high pressure Tilt so that the side sinks. When the flock is tilted, the pressure at which the bristle contacts the convexity is reduced, and the pressure becomes moderate to remove plaque and the like without damaging the gums and other soft tissues. On the other hand, the bristle bundle facing the concave portion comes into contact with the concave portion with an appropriate pressure given from the elastic member because the flocked body is supported via the elastic member. As a result, without special operation of the toothbrush, simply moving the brush part up and down along the tooth surface will cause the bristle bundle to come into contact with the entire surface including the irregularities on the tooth surface with almost uniform pressure. It becomes possible to remove plaque and the like attached to the depression. 3. The toothbrush according to claim 2, wherein the support portion has a flocked body receiving recess formed at a tip of the handle, and the flocked body is arranged in the recess. This makes it possible to make use of the excellent features of the present invention in a toothbrush having a single flocked body.

The toothbrush according to claim 3, wherein the flocked body is divided into a plurality of pieces in units of at least one row of the bristle bundle, and the divided pieces are tiltable independently of each other. It is. This makes it possible to impart separate movements to the split piece of the flocking body that hits the flat tooth surface and the split piece of the flocking piece that hits the concave part to the convex part.

The toothbrush according to claim 4 is characterized in that the flocked body is divided for each bristle bundle, and the bristle bundles can be tilted independently of each other. This makes it possible to impart independent movement to each hair bundle.

A toothbrush according to a fifth aspect is characterized in that a plurality of the flocked bodies are arranged so that the respective flocked surfaces face the same space, and at least one flocked body is tiltable. Thereby, in the toothbrush configured to brush different tooth surfaces simultaneously, it is possible to bring out the above-mentioned excellent features of the present invention.

The toothbrush according to claim 6, wherein at least one of the flocking members is connected to the supporting member via a connecting member, and the connecting member has a portion connected to the flocking member and a portion connected to the supporting member. It is characterized by tilting with respect to. This makes it possible to A toothbrush having a plurality of flocked bodies for simultaneously polishing tooth surfaces and having the excellent features of the present invention can be adapted to each user using a conventional toothbrush having a single flocked surface. Can be made.

8. The toothbrush according to claim 7, wherein the support portion has a side edge portion along the axial direction of the 抦 portion, and the flocked body is connected to a side edge of the flocked body attachment portion. It shall be. By adopting such a structure, it is not necessary to form a concave portion for attaching the flocked body to the support portion, so that the structure of the toothbrush according to the present invention can be simplified and its manufacture can be facilitated.

The toothbrush according to claim 8 is characterized in that the flocked body is tiltable about an axis extending in the longitudinal direction. This enables the flocked body to move in accordance with the uneven portion formed on the upper or lower part of the tooth surface or the steeply inclined surface upward or downward.

A toothbrush according to a ninth aspect is characterized in that the flocked body is tiltable about an axis extending in the width direction thereof. Thereby, the flocked body can move in correspondence with the uneven portion extending in the longitudinal direction of the tooth surface and the interdental space.

The toothbrush according to claim 10 is characterized in that the flocked body is attached to the tip of the handle so as to be tiltable about the axis of the handle. This makes it possible to provide a toothbrush in which the entire brush portion can be tilted in accordance with the irregularities on the tooth surface without separating the flocking portion from the brush portion.

A toothbrush according to claim 11 is characterized in that a plurality of flocked surfaces facing the same space are provided on the flocked body. This makes it possible to simultaneously function the tiltable flocked body on a plurality of surfaces of the teeth, for example, the occlusal surface and the side surface, the inner and outer side surfaces, and the like.

A toothbrush according to claim 12 is characterized in that the resilient member is an elastic body. This makes it possible to relatively easily make the flocking body tiltable.

The toothbrush according to claim 13 is characterized in that the resilient member is a spring. This makes it possible to realize a configuration in which the implanted body is quickly and surely tilted in a predetermined direction. A toothbrush according to a fifteenth aspect is characterized in that it includes a gripper for attaching and using at least two of the toothbrushes according to the first aspect. By using such a gripper, it is possible to brush multiple tooth surfaces simultaneously by using multiple toothbrushes with a simple structure with a single flocking surface without preparing a toothbrush with a complicated structure Toothbrush can be obtained easily and economically. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a longitudinal sectional view of a brush head of a toothbrush according to a first embodiment of the present invention. FIG. 2 is a view from the flocking surface side of FIG.

FIG. 3 is a sectional view showing a modified example of the developing member.

FIG. 4 is a diagram showing a first modification of the first embodiment.

FIG. 5 is a diagram showing a second modification of the first embodiment.

FIG. 6 is a sectional view taken along line 6-6 in FIG.

FIG. 7 is a view similar to FIG. 2, showing a second embodiment of the present invention.

FIG. 8 is a partially enlarged view showing the mounting state of the developing member in FIG.

FIG. 9 is a diagram showing a modified example of the resilient member in the second embodiment.

FIG. 10 is a diagram showing an example in which a conventional toothbrush is brushed against two aligned teeth. FIG. 11 is a comparison diagram with FIG. 10 when the toothbrush according to the first embodiment of the present invention is used.

FIG. 12 is a perspective view of a brush head of a toothbrush according to a third embodiment of the present invention. FIG. 13 is a partial cross-sectional view taken along line 13-13 of FIG.

FIG. 14 is a diagram viewed from the direction of arrow 14 in FIG.

FIG. 15 is an explanatory diagram schematically showing the movement of the divided flocking body when the toothbrush according to the third embodiment is applied to the teeth.

FIG. 16 is a diagram showing a modification of the third embodiment in the third embodiment.

FIG. 17 is a diagram illustrating a first modification of the third embodiment.

FIG. 18 is a diagram illustrating a second modification of the third embodiment.

FIG. 19 is a perspective view of a brush head of a toothbrush according to a fourth embodiment of the present invention. FIG. 20 is a perspective view of a brush head of the toothbrush according to the fifth embodiment of the present invention. FIG. 21 is a perspective view of a brush head of the toothbrush according to the sixth embodiment of the present invention. 2 is a perspective view of the brush head of the toothbrush according to the seventh embodiment of the present invention. FIG. 23 is a perspective view of the brush head of the toothbrush according to the eighth embodiment of the present invention. FIG. 4 is a diagram showing an arrangement relationship of three toothbrushes in an eighth embodiment. BEST MODE FOR CARRYING OUT THE INVENTION

An embodiment of the present invention will be described with reference to the accompanying drawings.

1 to 11 show examples in which the present invention is applied to a toothbrush having a single flocked surface. 1 is a longitudinal sectional view of a brush head of a toothbrush according to a first embodiment of the present invention, FIG. 2 is a view from the flocking surface side of FIG. 1, FIG. 3 is a cross-sectional view showing a modified example of an elastic member, 4 is a diagram similar to FIG. 2 showing the first modification of the first embodiment, FIG. 5 is a diagram showing the second modification of the first embodiment, FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. 5, and FIG. FIG. 8 is a view similar to FIG. 2 showing a second embodiment of the invention, FIG. 8 is a partially enlarged view showing an attached state of a spring member in FIG. 7, and FIG. 9 is a view similar to FIG. FIG. 10 is a diagram showing an example in which a conventional toothbrush is applied to two aligned teeth, and FIG. 11 is a comparison with FIG. 10 when the toothbrush according to the first embodiment of the present invention is used. FIG.

First, in FIG. 1, the toothbrush 1 according to the first embodiment has a flocked body support portion 4 integrally provided with a handle portion 2, and the support portion 4 has a flocked body 6 on which a large number of bristle bundles 7 are planted. A flocked body storage recess 8 is provided. As can be clearly seen from FIG. 2, the flocked body 6 is supported by the flocked body support 4 at both ends of the shaft 10 extending in the longitudinal direction substantially at the center in the width direction, and can be tilted about the shaft 10. .

In the example of this figure, the flocking body 6 is separated for each row of the hair bundles 7 along the width direction, and is configured to be tiltable independently for each row. In fact, every column It may be configured to be tiltable independently of each other, or may be configured to be able to tilt the whole flocking body 6 integrally. An elastic body 1 2 is interposed between the back side of the flocked body 6 and the bottom of the flocked body storage section 8, and the elastic body 1 2 restores the flocked body 6 when the flocked body 6 is tilted. Demonstrate the power to return to the posture. The elastic body 12 is not particularly limited, such as synthetic rubber or natural rubber, but is preferably an elastic material such as urethane rubber, which is rich in elasticity 14 and excellent in strength and durability.

Referring to FIG. 3, A and A show the installation state of the elastic body 12 in a cross-sectional view along the line 3A-3A in FIG. In this figure, the elastic members 12 are partially disposed near both ends in the width direction where the amplitude is largest when the flocking body 6 is tilted. B shows an example in which a coil panel 12 is used as a spring member in place of the elastic body 12, and C shows an example in which a string spring 12 "is used. Although the response is more preferable, the elastic body is better in terms of workability of mounting.

FIG. 4 shows a first modification of the first embodiment, in which a flocked body 6 ′ is configured to be tiltable about an axis 10 ′ extending in the width direction substantially at the center in the longitudinal direction. The flocks 6 'are separated for each row of hair bundles 7' along the longitudinal direction, and each row can be tilted independently of each other. Even in this case, in practice, it is also possible to adopt a configuration in which the tilting can be independently performed for each of the plurality of rows, or a configuration in which the entire flocking body 6 can be tilted integrally.

FIG. 5 shows a second modification of the first embodiment, in which a flocked body 6 "is divided for each hair bundle 7". As shown in FIG. 6, for example, each flock 6 "is disposed in a chamber 16 partitioned by a partition wall 14. Each flock 6" is located near an end 24 on the flock surface side. The flocked body 6 "is supported by the pad 22 in the width direction in the illustrated example along the tilting direction of the flocked body 6". The end 26 of the flocked body 6 "opposite to the flocked surface side is It is formed in a spherical convex shape, and is fitted in the spherical concave portion 28 of the flocked body storage concave portion 8 "so as to be tiltable.

The opening of each chamber 16 is closed with a cloth material 18. The bristle bundle 7 "extends through the hole 9 formed in the cloth material 18, but the hair and the hole 9 are sealed in a liquid-tight manner. The cloth material 18" is bundled with the flocking body 6 " It is made of extremely elastic material, such as synthetic rubber, so that it does not break when it moves. It is needless to say that the panel 22 that generates a restoring force to the original posture when each flocking body 6 "is tilted can be replaced with an elastic body as shown in FIGS. 1 to 3A. The shape and support structure of the flock 6 "are not limited to those shown in the figures, and any configuration may be used as long as each flock can tilt independently of each other.

7 and 8 show a second embodiment of the present invention. In this embodiment, the toothbrush 100 has the flocked body 106 separated from the handle 102, and the flocked body 106 can be tilted about an axis extending in the axial direction of the handle 102. It is connected to the handle 102 via a resilient member 122. In the illustrated example, the developing member 122 has a torsion bar having one end embedded in the handle 102 and the other end embedded in the flocked body 106. FIG. 9 shows an example of a resilient member replacing the torsion bar of FIG. In the elastic member in this example, the end of the handle portion 102 ′ on the side of the flocked body 106 ′ is formed in a cylindrical shape to provide a concave portion 142, and one end is embedded in the flocked body 106 ′. The short axis 1 32 is positioned inside the recess 1 4 2, and a cylindrical elastic body 1 52 is interposed between the outer periphery of the short axis 1 3 2 and the inner peripheral wall of the recess 1 4 2. The inner and outer surfaces of the elastic member 152 are fixed to the outer periphery of the short axis 132 and the inner peripheral wall of the concave portion 142 by being baked. The elastic body 152 is not particularly limited, such as synthetic rubber and natural rubber, but is preferably a material having high elasticity and excellent durability such as urethane rubber.

The operation of the present invention will be described with reference to FIGS. 10 and 11 in comparison with a conventional example in which a toothbrush is applied to two aligned teeth. Fig. 10 shows a conventional example. As can be seen from Fig. A, no matter how strongly the toothbrush is pressed against the tooth surface, the bristle bundle facing the interdental space can enter the space S formed in the interdental region. Can not. This is because, as shown in Fig.B, which is a cross-sectional view taken along line 10B-11B in Fig.A, the hair bundles hitting the outer surfaces of the teeth on both sides of the interdental space are like spacers. This is because the distance W between the tooth surface and the implanted surface of the implanted body is kept large. Therefore, in order to clean the interdental space with a conventional toothbrush, it is necessary to deviate the toothbrush vertically and apply a bristle bundle at the tip of the brush to the interdental space, or to use another interdental brush. And

FIG. 11 shows a case where the toothbrushes according to the first embodiment and the second embodiment of the present invention are used, and is a cross-sectional view taken along the line 11B-11B of FIG. As shown in the figure, the flocked body 6 has the side edge side (the upper side edge side in the figure) that receives a large pressure from the convex portion of the tooth surface via the hair bundle. ) Is tilted with respect to the flock support 4 so as to sink. As a result, the sunk hair bundles on the side edges come into contact with reduced moderate pressure, and at the same time, the hair bundles on the opposite side edges come into contact with the tooth surface with moderate pressure given by the elastic body. At this time, the distance W, between the tooth surface and the flocked surface of the brush part is greatly reduced due to the tilting of the flock 6, and as shown in Fig. A, the bristle bundle facing the interdental space becomes Can enter the space S formed in the space. Therefore, according to the present invention, there is no need for any special brush operation or interdental brush, and the teeth adhered to the interdental space only by the normal tooth brushing operation of moving the brush up and down along the tooth surface. It is possible to remove dirt and the like.

FIGS. 12 to 25 show examples in which the present invention is applied to a toothbrush having a plurality of flocked surfaces. FIG. 12 is a perspective view of a brush head of the toothbrush according to the third embodiment of the present invention, FIG. 13 is a partial cross-sectional view taken along line 13—13 of FIG. 12, and FIG. 3 is a view seen from the direction of arrow 14, FIG. 15 is an explanatory view schematically showing the movement of the divided flocking body when the toothbrush according to the third embodiment is applied to the teeth, and FIG. FIG. 17 is a diagram showing a modification, FIG. 17 is a diagram showing a first modification of the third embodiment, and FIG. 18 is a diagram showing a second modification of the third embodiment.

In FIG. 12, the toothbrush 201 according to the third embodiment has a handle portion 202 and a flocked body support portion 204 integrally. The flocked body support portion 204 includes a horizontal portion 204a and a vertical portion that support the two flocked bodies 206a and 206b such that the respective flocked surfaces face the same space S1. 204b. The horizontal portion 204 a supports the flocked body 206 a so that the flocked surface is substantially horizontal during use, and the tuft 207 faces downward, and the vertical portion 204 b is used during use. The flocking surface force S is almost vertical, and the flocking body 206b is supported so that the bristle bundle 2◦7 is oblique and upward. As can be clearly understood from FIG. 13, the flocked body 206 b of the vertical portion 204 b has a protrusion O extending in the longitudinal direction at the upper end thereof, and the lower end thereof sinks into the flocked body storage recess 208. It is tiltably supported by the flocked body support portion 204 so that it can be inserted.

As shown in FIG. 14, the flocked body 206 b of the vertical part 204 of the flocked body support part 204 is separated for each row abcde. Each row can tilt independently of each other. On the back side of the flocking body 206 b, an elastic body 212 is interposed between the flocking body storage recess 208 and the bottom surface, and the flocking body 206 b tilts in the elastic body 212. To return the flocked body 206 b to its original position when Demonstrate elasticity. The elastic body 212 is not particularly limited, such as synthetic rubber or natural rubber, but is preferably a material having high elasticity and excellent durability such as polyurethane rubber. FIG. 15 shows the toothbrush according to the third embodiment. In this case, the movement of the flocked body 206 b for each hair bundle row abcde... Is shown from the occlusal surface side of the tooth. As shown in the figure, the flocked body 206 b of the bristle bundle bce facing the convex portion of the tooth side surface receives high pressure from the tooth surface via the bristle bundle, and the flocked body receiving recess 20 b 8 is the most submerged state. On the other hand, the flocked body 206 b of the hair bundle row d facing the interdental space or the concave portion hardly sinks because the pressure received from the tooth surface via the hair bundle is low, and the elastic body 21 The hair bundle enters into the interdental space due to the development of step 2 above. Also, the flocked body 206 b of the hair bundle row a facing the slightly concave tooth surface is slightly submerged according to the degree of the tooth surface depression.

Thus, in this embodiment, in accordance with the change in the pressure applied to the bristle bundle due to the unevenness of the tooth surface, the flocked body 206 b tilts for each bristle bundle row abede. The pressure between the protrusions and the depressions is almost uniform, and plaque and the like adhered to the depressions can be effectively removed with an appropriate pressure. This embodiment is particularly effective when there is a recess along the longitudinal axis of the tooth, such as the interdental space.

The third embodiment of the present invention has been described above as a configuration in which the flocked body 206 b is separated for each hair bundle row along the longitudinal direction and tilted independently of each other. However, the configuration is not limited to this. As can be seen from the description of the first embodiment and the second embodiment with reference to FIG. 11, the flocked body 206b may have a configuration in which the whole is tilted integrally. Also, a plurality of bristle bundle rows along the longitudinal direction may be separated as a unit so that they can be tilted independently of each other. In any case, the flocked body tilts around the upper edge due to the high pressure received from the convex part of the tooth surface, which reduces the pressure applied to the hair bundle at the lower edge of the sunken side, resulting in a moderate pressure. At the same time, the bristle bundle at the upper end edge on the opposite side only needs to come into contact with the tooth surface with an appropriate pressure applied from the elastic member.

FIG. 16 shows a modification of the elastic member for imparting elasticity to the flocked body 206 b in the third embodiment. A panel is used instead of the elastic body 212. Figure A shows the coil bar. FIG. B shows a panel panel 212 "bent in a square shape in FIG. B. These are merely examples, and the resilient members are not limited to these. Any member made of a material capable of exhibiting resilience, which can be known by those skilled in the art, may be used.

Up to now, the third embodiment mainly includes a horizontal portion 204a and a vertical portion 204b which are positioned at an angle of about 90 °, as shown in FIG. The example has been described using the flock support 204 used for the occlusal surface and the side surface. The configuration of the flocked body supporting portion in which a plurality of flocked bodies are arranged such that each flocked surface faces the same space is not limited to this. For example, by providing the vertical portions on both sides of the horizontal portion, the present invention is naturally applicable to a toothbrush having three flocked surfaces arranged in a U-shape.

Here, FIG. 17 shows a first modification of the third embodiment having a plurality of flocked body support portions. In Fig. 17A, two flocked surfaces face the same space, and are arranged so that they intersect at a force and obtuse angle so that the hair bundle can be applied from the occlusal surface of the teeth to the inner and outer surfaces. Shown is a flock support 304 that supports the two flocks 306a, 306b so that they can tilt about a pivot 355 at the upper edge of each. In Fig. B, contrary to Fig. A, two flocked bodies 406a and 406b arranged so that the two flocked surfaces intersect at an acute angle are tilted about a protrusion 455 extending in the longitudinal direction at the upper end of each. Freely supported flock support 404 is shown. Also, FIG. C shows a flocked body support portion 504 in which three flocked surfaces face the same space so that a bristle bundle can be applied to each of the occlusal surface and the inner and outer surfaces of the teeth. The flocked body support portion 504 has three flocked bodies 506a, 506b, and 506c on a horizontal portion and side portions curved down from both sides thereof. Is supported so that it can tilt about the upper end protrusion 555.

FIG. 18 shows a second modification of the third embodiment of the present invention. FIG. 18A is a partial cross-sectional view similar to FIG. 13 showing a vertical portion of a toothbrush having a plurality of flocked body support portions, and FIG. 18B is a cross-sectional view of a front toothbrush having two flocked surfaces arranged at an acute angle. FIGS. 2C and 2C are views from the end face of the molar toothbrush similar to FIG.

In FIG. 18A, the flocked body 606 b of the vertical portion 604 b is different from that of the third embodiment. In contrast, the flocked body support portion 604b is tilted so that the upper end side can sink into the flocked body storage recess 608 with the protrusion 655 extending in the longitudinal direction of the lower end as the center. Supported. In this embodiment, the hair bundle 607 is implanted obliquely downward. For the present invention, the angle of the tuft to the flocked surface is not critical. It may be one that is inclined obliquely upward or downward, or one that is planted almost perpendicular to the flocking surface. This is because the angle or direction of the bristle bundle may be appropriately selected depending on the position, size, angle, tooth shape, or the like of the concave or convex portion in question.

Both B and C figures in Fig. 18 are the same as in Fig. A, with the flocks 706a, 706b / 806a, and 806b at the lower edge 755 / 58.55. It is configured to tilt about an axis extending in the longitudinal direction of the flocked body. Whether the implanted body tilts around the upper end side as in the third embodiment or the inclined body centered on the lower end side as in this embodiment is selected from the H0 to the tooth surface. The position may be determined according to the position of the projection, the shape of the teeth, and the like.

FIG. 19 shows a fourth embodiment. In this embodiment, a brush head of a toothbrush having a single flocked body and a side flocked body arranged on the side thereof are connected by a connecting member. A plurality of flocked surfaces face the same space, and a portion of the connecting member, which is connected to the side flock, is tiltable with respect to a portion connected to the brush head. The present invention has been realized. That is, the flocked bodies 36.a and 36b are supported on the left and right sides of the flocked body support portion 34 integral with the handle 32 by using the connecting members 35. The connecting member 35 has a central body 35a connected to the flocked body support portion 34, and side pieces 35b, 35c connected to the flocked bodies 36a, 36b. The side pieces 35 b and 35 c of the connecting member 35 are connected to the central body 35 a via a resilient member 38 so as to be tiltable about the upper end 37. Whether the side pieces 35b and 35c can be tilted outward or inward can be determined according to the position of the concave or convex portion on the tooth surface, the shape of the teeth, etc. The mounting direction of the member 38 may be selected.

FIGS. 20 to 22 show that, in each of the figures, a flocked body receiving recess is not provided in the flocked body support section, and a plurality of flocked bodies are directly tiltably attached to side edges of the flocked body support section, and a plurality of flocked bodies are mounted in the same space. The example which implement | achieved this invention by making a flocking surface face is shown. That is, Figure 2 In the example shown in Fig. A of the fifth embodiment, the flocked body support portion 44 provided at the tip of the handle portion 42 has side edges 44a and 44b along the axial direction of the handle portion. The flocked body 46a, 46b has a force at the upper end 47a, 47b.S The flocked member is provided on the side edge 44a, 44b of the flocked body support portion 44. Are linked through 4 8. The flocked bodies 46a and 46b can be tilted about a connecting axis between the upper end portions 47a and 47b and the side edges 44a and 44b of the flocked body support portion. In the illustrated example, the cross-sectional shape of the flocked body support portion 44 has a shape imitating a contour of a heart-shaped upper portion.

In the example shown in Fig. 20B, the flocked body support 54 provided at the tip of the handle 52 also has side edges 54a and 54b extending along the axial direction of the handle. The flocked bodies 56 a and 56 b have upper ends 57 a and 57 b at the side edges 54 a and 54 b of the flocked body support 54 via elastic members 58. And are connected to be tiltable. In this example, since the flocked body support portion 54 has a rectangular cross section, the teeth using this toothbrush are different from those shown in FIG.

FIG. 21 shows a sixth embodiment. In this embodiment, a pair of left and right flocked bodies are directly attached to the flocked body support at the tip of the handle, and are configured to be tiltable about the axis of the handle. I have. As shown in the figure, the pair of left and right flocked bodies 66 a and 66 b are connected to the flocked body support section 64, which is an extension of the handle 62, via the developing members 68 a and 68 b. The lower end portion 69 is configured to be tiltable in a direction toward or away from the lower end portion 69 depending on the mounting direction of the resilient members 68a and 68b.

FIG. 22 shows a seventh embodiment, in which a flocked body 76 having an inverted L-shaped cross section has a plurality of flocked surfaces facing the same space, and a flocked body support portion 74 which is the axis of the handle portion 72. It is attached via a resilient member 78, and can be tilted about a handle shaft 74. In this embodiment as well, the shape of the flock support 74 can be changed to those shown in FIGS. 17, 18, 20, 21, and other similar brushes. Of course.

Figures 23 and 24 show examples of using a gripper with a plurality of toothbrushes having a single brush part attached to the tip of a handle at a predetermined angle to provide a plurality of flocking surfaces facing the same space. Is shown as an eighth embodiment. As is clear from the figure, the center toothbrush of the three toothbrushes 84a, 84b, 84c attached to the gripper 89 at a predetermined angle. The brush 84a does not have the structure according to the invention. In Fig. 24A, the toothbrushes 84b and 84c provided on the left and right have the same structure as those shown in Figs. 1 to 3, and the flocked body 86 has the same structure. A structure is used that is tiltable about a pivot shaft 87 at the upper end. In FIG. B, a structure is used in which a flocked body 96 can be tilted about a pivot shaft 97 at the lower end of toothbrushes 94 b and 94 c provided on the left and right.

Regarding the eighth embodiment, it goes without saying that the configuration may be such that only the pair of toothbrushes provided on the left and right is used without using the central toothbrush. In addition, the left and right toothbrushes are resilient as shown in FIGS. 7 to 9 so that the handle and the brush are separated and the brush is allowed to tilt about an axis extending in the axial direction of the handle. Needless to say, the structure may be connected to the 抦 portion via a member.

Although the present invention has been described with reference to the first to eighth embodiments, it is needless to say that the present invention can be applied to a brush head used for an electric toothbrush.

A toothbrush according to the present invention includes a movable portion including a flocked surface on which a bristle bundle is planted, and a support portion including a handle and supporting the movable portion, and the movable portion is elastically resiliently tiltable with respect to the support portion. By using a flocked body supported through members, even if there are irregularities or steep slopes on the tooth surface, it is possible to apply a bristle bundle to the tooth surface with almost uniform pressure, and to remove plaque etc. on concave portions and steep slopes It is possible to do. Industrial applicability

According to the present invention, there is provided a toothbrush in which a bristle bundle hits the tooth surface with a substantially uniform pressure even if the tooth surface has irregularities or a steeply inclined surface, thereby enabling plaque and the like to be reliably removed.

Claims

The scope of the claims

1. A movable part including a flocked surface on which a hair bundle is planted, and a support part including a handle and supporting the movable part, and the movable part is supported via a developing member so as to be tiltable with respect to the support part. A toothbrush characterized by having a flocked body.

2. The toothbrush according to claim 1, wherein the support portion has a flocked body receiving recess formed at a tip of the 抦 portion, and the flocked body is disposed in the recessed portion.

3. The toothbrush according to claim 2, wherein the flocked body is divided into a plurality of pieces in units of at least one row of a bristle bundle, and each divided piece is tiltable independently of each other. .

4. The toothbrush according to claim 2, wherein the flocked body is divided for each bristle bundle, and each bristle bundle is tiltable independently of each other.

5. The plurality of flocked bodies are arranged such that each flocked surface faces the same space, and at least one flocked body is tiltable. A toothbrush according to claim 1.

6. At least one of the flocked bodies is connected to the support member via a connecting member, wherein the connecting member tilts a portion connected to the flocked body with respect to a portion connected to the support member. The toothbrush according to claim 1, characterized in that:

7. The support according to claim 1, wherein the support has a side edge along the axial direction of the handle, and the flocked body is connected to a side edge of the flocked body attachment. The tooth brush described.

8. The flocked body can be tilted about an axis extending in the longitudinal direction. The toothbrush according to any one of claims 2 to 3, 6, and 7 characterized by the following.

9. The toothbrush according to claim 2, wherein the flocked body is tiltable about an axis extending in a width direction thereof.

10. The toothbrush according to claim 1, wherein the flocking body is attached to a tip of the shank so as to be tiltable about an axis of the handle.

11. The toothbrush according to claim 10, wherein a plurality of flocked surfaces facing the same space are provided on the flocked body.

12. The toothbrush according to any one of claims 1 to 11, wherein the resilient member is an elastic body.

13. The toothbrush according to any one of claims 1 to 11, wherein the resilient member is a panel.

14. A toothbrush comprising a holding tool having at least two of the toothbrushes according to claim 1 mounted at a predetermined angle.