JP2016158643A - Toothbrush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toothbrush that can clean interdentium more effectively.SOLUTION: A toothbrush 1 has a long handle 11, a bristle transplanting part 12 formed on the tip of the handle 11 and a brush part 20 comprising two or more bristle bundles 21, 22 transplanted to the bristle transplanting part 12, and cleans teeth T by the brush part 20. The brush part 20 has two or more central bristle bundles 21 disposed in the longitudinal direction P of the handle 11 side by side as the bristle bundles 21, 22, and two or more side bristle bundles 22 adjacently disposed around the two or more central bristle bundles 21. The central bristle bundles 21 and the side bristle bundles 22 are slantingly formed in a mountain shape to become higher as coming close to the center. The height of the central bristle bundles 21 is higher than that of adjacent side bristle bundles 22, and an apical tilt angle θ1 of the central bristle bundles 21 and an apical tilt angle θ2 of the side bristle bundles 22 are the same.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a toothbrush for removing dirt such as plaque adhered to teeth by a brush portion planted at the tip of a handle.

  A toothbrush is generally composed of a handle formed in the longitudinal direction so as to be easily grasped, and a brush portion to be implanted in a flocked portion at the tip of the handle. By gripping and moving the handle, the tip of the brush portion formed at the tip of the handle hits the tooth, and dirt such as plaque adhering to the tooth is removed.

  Recently, it has become a problem not only how to remove dirt on the surface of teeth, but also how to effectively remove dirt that exists between teeth (between teeth), the boundary between teeth and gums, and the groove of teeth. ing. Therefore, there is a toothbrush in which the configuration of the brush portion is devised so that the brush portion can be efficiently inserted between the teeth. For example, the toothbrush described in Patent Document 1 is formed so that the brush part has an overall mountain shape when the brush part is viewed from the side. That is, it is cut so that the height of the brush portion gradually increases as it approaches the center of the brush portion. As a result, compared with the case where the surface of the brush part is cut into a flat shape, the peak part of the mountain shape of the brush part enters between the teeth, the gap between the teeth and gums (so-called periodontal pocket), the tooth groove, etc. It becomes easy.

  However, even if the tip of the brush part when viewed from the side is simply formed as a mountain shape as a whole, it effectively cleans the plaque between the teeth and between the teeth and gums. There was a case that could not be.

Japanese Patent Application Laid-Open No. 2012-075725

  The present invention has been made in view of the above-described points, and an object of the present invention is to provide a toothbrush capable of more effectively cleaning between teeth and a gap between teeth and gums by brushing in a short time and with a light force. There is to do.

  The present invention for solving the above problems includes a long handle (11), a flocked portion (12) formed at the tip of the handle (11), and a plurality of hair bundles to be flocked to the flocked portion (12). In the toothbrush (1) having a brush part (20) composed of (21, 22) and cleaning the teeth (T) by the brush part (20), the brush part (20) includes a plurality of hair bundles (21 , 22), a plurality of central hair bundles (21) arranged side by side in the longitudinal direction (P) of the handle (11), and a plurality arranged adjacent to the periphery of the central hair bundle (21) The side hair bundle (22) of the plurality, and the plurality of central hair bundles (21) and the plurality of side hair bundles (22) are mountain-shaped (pyramid type) so as to become higher toward the center. The center hair bundle (21) has a height higher than that of the adjacent side hair bundle (22) and is inclined in a mountain shape. The inclination angle of the Buketaba (21) and (.theta.1) inclination angle of the side hair bundle (22) and (.theta.2), characterized in that the same.

  Thus, if a center part hair | bristle bundle (21) and a side part hair | bristle bundle (22) are comprised in a mountain shape (pyramid type), a some center part hair | bristle bundle (21) and several side part hair | bristle bundle (22) The tip of the central hair bundle (21) at the highest position is deep in the gap (MG) or groove (TU) between the teeth (T) and the gums (M) without being interfered by the surrounding hair bundles. Since it can penetrate to a position, it becomes possible to scrape off dirt in a deep position. In addition, since the plurality of central hair bundles (21) are formed in a mountain shape, the central hair bundle located at the second highest position adjacent to the highest central hair bundle (21). (21) also easily enters the gap (MG) or the groove (TU) following the central hair bundle (21) at the highest position. The same applies to the plurality of side hair bundles (22) that are also formed in a mountain shape. Moreover, if the center part hair | bristle bundle (21) of a toothbrush (1) is comprised higher than the surrounding side part hair | bristle bundle (22), a center part hair | bristle bundle (21) will be a tooth | gear (T) and a gum (M). When entering the deepest part of the gap (MG) or groove (TU), the side hair bundle (22) having a height lower than that of the central hair bundle (21) follows the central hair bundle (21). It easily enters the teeth (T) and gums (M) of the portion adjacent to the deepest part. Furthermore, when the inclination angle (θ1) of the central hair bundle (21) inclined in a mountain shape and the inclination angle (θ2) of the side hair bundle (22) are configured to be the same, the central hair bundle (21) becomes a tooth. When the gap (MG) between the (T) and the gums (M) or the deep part of the groove (TU) is entered, the side hair bundle (22) adjacent to the short direction (Q) of the central hair bundle (21) is At the same angle as the central hair bundle (21), the tooth (T) and gum (M) of the portion adjacent to the deep part enter and come into contact. In this way, the gap (MG) or groove (TU) between the teeth (T) and gums (M), and the adjacent teeth (T) and gums (M) are divided into the central hair bundle (21) and the side hairs. A toothbrush that can effectively remove dirt in the entire oral cavity including between teeth and between the teeth and gums by brushing with a light force with a short time by effectively cleaning the bundle (22) Become.

  Moreover, in the toothbrush (1) of the said structure, you may comprise the hardness of a center part hair | bristle bundle (21) harder than a side part hair | bristle bundle (22). In this way, the hardness of the hair bundle (21, 22) that becomes longer (higher) stepwise as it approaches the center of the flocked portion (12) is increased stepwise as it approaches the center of the flocked portion (12). As a result, the rigidity of the brush portion 20 can be kept high. For this reason, it is possible to maintain a high cleaning performance for the central hair bundle (21) when entering between the teeth (TG), the gap (MG) between the teeth (T) and the gums (M), and the deep part of the groove (TU). it can.

  Moreover, in the toothbrush (1) of the said structure, you may increase the hair quantity of a center part hair | bristle bundle (21) rather than the hair quantity of a side part hair | bristle bundle (22). By increasing the amount of hair of the central hair bundle (21), the rigidity of the central hair bundle (21) longer than the side hair bundle (22) can be improved. For this reason, it is possible to maintain a high cleaning performance for the central hair bundle (21) when entering between the teeth (TG), the gap (MG) between the teeth (T) and the gums (M), and the deep part of the groove (TU). it can.

  In addition, the code | symbol in said parenthesis has shown the code | symbol of the corresponding component of embodiment mentioned later as an example of this invention.

  According to the toothbrush according to the present invention, the central hair bundle enters deep into the groove on the surface of the tooth, between the teeth, or between the teeth and the gums, and the side hair bundle follows the portion adjacent to the central hair bundle. Since the structure is easy to enter, the entire inside of the oral cavity can be more effectively cleaned by brushing in a short time and with a light force.

1 is an overall view of a toothbrush according to an embodiment of the present invention. It is an enlarged view of the brush part of a toothbrush, (a) is a top view, (b) is a side view, (c) is a front view. It is a figure which shows the state which is cleaning the clearance gap between teeth, and the clearance gap between a tooth | gum and a gum, and is the figure which looked at the tooth from upper direction. It is a figure which shows the state which is cleaning the clearance gap between teeth, and the clearance gap between a tooth | gum and a gum, and is the figure which looked at the tooth | gear and the gum from the side.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is an overall view of a toothbrush 1 according to an embodiment of the present invention. A toothbrush 1 shown in FIG. 1 includes a toothbrush main body 10 having a long handle 11 and a flocked portion 12 formed at the tip of the handle 11, a plurality of central hair bundles 21, and a plurality of side hair bundles 22. It has the brush part 20 comprised from these.

  The handle 11 includes a grip portion 11A that the user grips and a neck portion 11B that has elasticity by being configured to be narrower than the grip portion 11A. With this configuration, the user cleans the teeth T (see FIGS. 3 and 4) by grasping the grip portion 11 </ b> A and moving the brush portion 20 at the tip of the handle 11. The handle 11 of the toothbrush 1 is made of a relatively hard synthetic resin material such as polypropylene, and the bristles constituting the central bristles 21 and the side bristles 22 of the brush portion 20 are relatively soft such as nylon. Made of synthetic resin material. In addition, the brush portion 20 of the toothbrush 1 is preferably about 2 cm in size so that it can easily enter the oral cavity and make a small turn.

  The brush part 20 of the toothbrush 1 is demonstrated concretely. FIG. 2 is an enlarged view of the brush portion 20, where (a) is a plan view, (b) is a side view, and (c) is a front view. As shown in FIG. 2, the hair bundles forming the brush portion 20 are classified into two types, that is, a central hair bundle 21 and a side hair bundle 22 depending on the place where the brush portion 12 is arranged. That is, the brush part 20 has a plurality of center part hair bundles 21 arranged along the longitudinal direction P in the center of the hair transplant part 12 and a plurality of parts arranged adjacent to surround the center part hair bundle 21. It is comprised from the side part hair | bristle bundle 22. FIG. Next, the structure of the center part hair | bristle bundle 21 and the side part hair | bristle bundle 22 is demonstrated concretely.

  The center part hair | bristle bundle 21 is comprised from a several hair | bristle bundle as shown to Fig.2 (a), and is arrange | positioned along with the center part of the hair transplant part 12 in the longitudinal direction P. As shown in FIG. In the present embodiment, an example in which six bundles of the central hair bundle 21 are arranged is shown. The plurality of central hair bundles 21 are formed to be inclined in a mountain shape (pyramid shape) so as to become higher as approaching the center of the brush portion 20. Specifically, as shown in FIG. 2B, the three bundles on the handle side of the central hair bundle 21 become linearly higher as approaching the tip, and the three bundles on the tip are on the tip. It is formed to be inclined so as to become linearly lower as it approaches the part. Moreover, as shown in FIGS. 2B and 2C, the height of the central hair bundle 21 is configured to be higher than the adjacent side hair bundle 22.

  As shown in FIG. 2A, the plurality of side hair bundles 22 are arranged adjacent to the central hair bundle 21 so as to surround the periphery of the central hair bundle 21. In the present embodiment, an example in which 17 side hair bundles 22 are arranged around the center hair bundle 21 is shown. Specifically, three bundles of the side hair bundles 22 are arranged on the most handle side of the brush part 20 in FIGS. Further, six side hair bundles 22 are arranged adjacent to each other in the short direction Q (direction perpendicular to the longitudinal direction P) of the center hair bundle 21. For this reason, the side hair bundles 22 of the six bundles appear to overlap with the central hair bundle 21 when viewed from the side as shown in FIG. Further, two bundles of the side hair bundles 22 are arranged closer to the tip than the center hair bundle 21. While the number of hair bundles on the handle side is 3 each, the number of the side hair bundles 22 on the tip side is set to two so that the width on the tip side of the brush part 20 can be made narrow. . As shown in FIG. 2B, the four bundles on the handle side of the side hair bundle 22 increase linearly as they approach the tip portion, and the four bundles on the tip portion side approach the tip portion. It is formed so as to incline so as to decrease linearly.

  As shown in FIG. 2B, the inclination angle θ1 of the central hair bundle 21 inclined in a mountain shape and the inclination angle θ2 of the side hair bundle 22 are the same. Further, the central hair bundle 21 is configured to be harder than the side hair bundle 22. In relation to this, the hair amount of the central hair bundle 21 may be larger than the hair amount of the side hair bundle 22. Thereby, the rigidity of the brush part 20 can be kept high. In addition, in this embodiment, although the center part hair | bristle bundle 21 is arrange | positioned at 1 row along the longitudinal direction P, it is not necessarily restricted to 1 row, Multiple rows may be sufficient. Further, the number of bundles of the center hair bundle 21 or the side hair bundle 22 is not limited to this embodiment.

  3 and 4 are diagrams showing a use state of the toothbrush 1, and are diagrams showing a state in which a gap TG between the tooth T and the tooth T (interdental) TG and a gap MG between the tooth T and the gum M are being cleaned. 3 is a view of a plurality of teeth T as viewed from above, and FIG. 4 is a view of the teeth T and gums M as viewed from the side. As shown in FIGS. 3 and 4, the toothbrush 1 according to the present embodiment applies the brush portion 20 between the surface TS of the tooth T and the tooth T and the gum M and moves the tooth T and the tooth T in small increments. The gap MG of the gum M is cleaned.

  At this time, since the central hair bundle 21 and the side hair bundle 22 are inclined in a mountain shape (pyramid shape), the top portion of the mountain shape is not only the surface TS of the tooth T but also the groove of the tooth T. TU, interdental TG, gap MG between teeth T and gum M, and so on, and it is possible to scrape off dirt at deep positions such as teeth TU, interdental TG, and teeth T and gum M gap MG. It becomes possible. Further, by forming the central hair bundle 21 and the side hair bundle 22 in a mountain shape, not only the central hair bundle 21 and the side hair bundle 22 located at the top of the mountain shape but also the center adjacent to the top portion. The bristle bundle 21 and the side bristle bundle 22 are likely to enter the groove TU of the tooth T, the interdental TG, the gap MG between the tooth T and the gum M, and the like sequentially. Therefore, due to these synergistic effects, the entire oral cavity including the interdental TG and the gap MG between the tooth T and the gum M can be effectively removed by brushing with a light force for a short time.

  Moreover, the top part 21T and the side part hair | bristle bundle of the center part hair | bristle bundle 21 inclined in the mountain shape (pyramid type | mold) by having comprised the center part hair | bristle bundle 21 of the toothbrush 1 higher than the surrounding side part hair | bristle bundle 22. The top 22 </ b> T of 22 enters deep into the groove TU of the tooth T, the interdental TG, and the gap MG between the tooth T and the gum M. Thereby, it is possible to scrape off dirt that has entered the groove TU of the tooth T, the interdental TG, or the gap MG between the tooth T and the gum M by brushing with a light force for a short time.

  Further, as described above, since the inclination angle θ1 of the central hair bundle 21 inclined in a mountain shape and the inclination angle θ2 of the side hair bundle 22 are configured to be the same, the top portion 21T of the central hair bundle 21 has the tooth T And the side hair bundle 22 adjacent to the short hair direction Q of the central hair bundle 21 at the same angle as that of the central hair bundle 21 when entering the deep part of the gap MG and the groove TU of the central part. The tooth T or the gum M of the part adjacent to the tooth enters and comes into contact. Thus, the central hair bundle 21 and the side hair bundle 22 effectively clean the gap MG and groove TU between the tooth T and the gum M, and the adjacent tooth T and gum M by the central hair bundle 21 and the side hair bundle 22 for a short time. In addition, a toothbrush that can effectively remove dirt in the entire oral cavity including between teeth and between the teeth and gums by brushing with a light force.

  Further, as shown in FIG. 3, in the toothbrush 1 of the present embodiment, the length dimension L <b> 1 in the longitudinal direction P of the flocked portion 12 is set to the same size as the width dimension L <b> 2 of the two teeth T. . As a result, it is possible to easily polish the teeth T by two in order, so that the interdental TG and the gap MG between the teeth T and the gum M can be cleaned one by one without leakage, and in a shorter time. Effective cleaning becomes possible.

  As explained above, in the toothbrush 1 of this embodiment, if the center part hair | bristle bundle 21 and the side part hair | bristle bundle 22 are comprised in a mountain shape (pyramid type), the some center part hair | bristle bundle 21 and several side part hair | bristle bundle will be described. 22 because the tip of the central hair bundle 21 at the highest position among 22 can enter deep positions such as the gaps MG and grooves TU between the teeth T and gums M without being interfered by the surrounding hair bundles. It is possible to scrape off dirt at deep positions. In addition, since the plurality of central hair bundles 21 are formed in a mountain shape, the central hair bundle 21 that is adjacent to the highest central hair bundle 21 and is the second highest is also the most. It becomes easy to enter the gap MG and the groove TU following the central hair bundle 21 located at a high position. The same applies to the plurality of side hair bundles 22 that are also formed in a mountain shape.

  Moreover, when the center part hair | bristle bundle 21 of the toothbrush 1 is comprised higher than the surrounding side part hair | bristle bundle 22, when the center part hair | bristle bundle 21 penetrates into the deepest part of the clearance gap MG of the tooth | gear T and the gum M, or the groove | channel TU. Subsequently to the central hair bundle 21, the side hair bundle 22 having a height lower than that of the central hair bundle 21 easily enters the tooth T and gum M of the portion adjacent to the deepest portion.

  Further, when the inclination angle θ1 of the central hair bundle 21 inclined in a mountain shape and the inclination angle θ2 of the side hair bundle 22 are configured to be the same, the central hair bundle 21 has a gap MG or a groove TU between the tooth T and the gum M. The side hair bundle 22 adjacent to the center part hair bundle 21 in the short direction Q of the center part hair bundle 21 at the same angle as that of the center part hair bundle 21 is inserted into the deep part of the tooth T and gums. M enters and abuts. Thus, the central hair bundle 21 and the side hair bundle 22 effectively clean the gap MG and groove TU between the tooth T and the gum M, and the adjacent tooth T and gum M by the central hair bundle 21 and the side hair bundle 22 for a short time. In addition, a toothbrush that can effectively remove dirt in the entire oral cavity including between teeth and between the teeth and gums by brushing with a light force.

  Moreover, in the toothbrush 1 of the said structure, you may comprise the hardness of the center part hair | bristle bundle 21 harder than the side part hair | bristle bundle 22. FIG. As described above, when the hardness of the hair bundles 21 and 22 that gradually increase in length as it approaches the center of the flocked portion 12 is gradually increased as it approaches the center of the flocked portion 12, the rigidity of the brush portion 20 is increased. Can be kept high. For this reason, the cleaning performance of the center part hair | bristle bundle 21 at the time of entering between the interdental TG, the clearance gap MG of the tooth | gear T and the gum M, or the deep part of the groove | channel TU can be maintained highly.

  Moreover, in the toothbrush 1 of the said structure, you may increase the hair quantity of the center part hair | bristle bundle 21 from the hair quantity of the side part hair | bristle bundle 22. FIG. By increasing the amount of hair of the central hair bundle 21, the rigidity of the central hair bundle 21 longer than the side hair bundle 22 can be improved. For this reason, the cleaning performance of the center part hair | bristle bundle 21 at the time of entering between the interdental TG, the clearance gap MG of the tooth | gear T and the gum M, or the deep part of the groove | channel TU can be maintained highly.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Deformation is possible.

DESCRIPTION OF SYMBOLS 1 ... Toothbrush 10 ... Toothbrush main body 11 ... Handle 11A ... Grasp part 11B ... Neck part 12 ... Flocked part 20 ... Brush part 21 ... Central part hair bundle 21T ... Top part 22 ... Side part hair bundle 22T ... Top part M ... Gum MG ... ( Gap P between tooth and gum (longitudinal direction Q) transverse direction T ... tooth TG ... interdental TS ... tooth surface TU ... groove

Claims (3)

In a toothbrush having a long handle, a hair transplant portion formed at the tip of the handle, and a brush portion comprising a plurality of hair bundles planted in the hair transplant portion, and cleaning teeth by the brush portion,
The brush portion includes, as the hair bundle, a plurality of center part hair bundles arranged side by side in the longitudinal direction of the handle, and a plurality of side hairs arranged adjacent to the periphery of the plurality of center part hair bundles. And the center part hair bundle and the side part hair bundle are formed to be inclined in a mountain shape so as to become higher as approaching the center,
The height of the central hair bundle is higher than the adjacent side hair bundle,
The toothbrush characterized by the inclination angle of the said center part hair | bristle bundle inclined in the mountain shape, and the inclination angle of the said side part hair | bristle bundle. The toothbrush according to claim 1, wherein the central bristles are harder than the side bristles. The toothbrush according to claim 1 or 2, wherein the amount of bristles of the central portion hair bundle is larger than the amount of bristles of the side portion hair bundle.

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