JP6692604B2 - toothbrush - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a toothbrush for removing dirt such as plaque attached to a tooth by a brush portion having hairs transplanted at the tip of a handle.

  A toothbrush is generally composed of a handle formed in a longitudinal direction so that it can be easily gripped, and a brush part to be transplanted into a bristle part at the tip of the handle. By moving while gripping the handle, the tip of the brush portion formed at the tip of the handle hits the tooth and removes dirt such as plaque attached to the tooth.

  Recently, the problem is how to effectively remove not only the dirt on the surface of the teeth, but also the dirt between the teeth (between the teeth), the boundary between the teeth and gums, the groove of the teeth, etc. ing. Therefore, there is a toothbrush in which the structure of the brush portion is devised so that the brush portion can efficiently enter between teeth. For example, the toothbrush described in Patent Document 1 is formed such that the brush portion has a mountain shape as a whole when the brush portion is viewed from the side surface. That is, the height of the brush portion is cut so as to gradually increase toward the center of the brush portion. As a result, compared to the case where the surface of the brush part is cut flat, the peaks of the crests of the brush part enter between the teeth, the gap between the teeth and gums (so-called periodontal pocket), the tooth groove, etc. It will be easier.

  However, even if the tip of the brush part when viewed from the side is simply formed to have a mountain shape as a whole, it is necessary to effectively clean the plaque in the groove between the teeth and the groove between the teeth and the gums. There were times when you couldn't.

JP 2012-077525A

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

  MEANS TO SOLVE THE PROBLEM This invention for solving the said subject WHEREIN: The elongate handle (11), the hair transplant part (12) formed in the front-end | tip of a handle (11), and the several hair bundle which is transplanted to the hair transplant part (12). In the toothbrush (1) having a brush part (20) made of (21, 22) and cleaning the tooth (T) by the brush part (20), the brush part (20) has a plurality of bristle 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). And a plurality of central hair tufts (21) and a plurality of lateral hair tufts (22) are formed in a mountain shape (pyramidal shape) so that the height increases toward the center. Is formed in a slanted shape, and the height of the central hair tufts (21) is higher than that of the adjacent side hair tufts (22). 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.

  In this way, when the central hair bundle (21) and the side hair bundle (22) are configured in a mountain shape (pyramid shape), a plurality of central hair bundles (21) and a plurality of side hair bundles (22) are formed. The tip of the central hair bundle (21) at the highest position is deep in the gap (MG) or groove (TU) between the tooth (T) and the gum (M) without being interfered by the surrounding hair bundle. Since it can enter up to the position, it is possible to scrape off dirt in deep positions. Further, since the plurality of central hair bundles (21) are formed in a mountain shape, the central hair bundles adjacent to the central hair bundle (21) at the highest position are at the second highest position. (21) also easily enters the gap (MG) and the groove (TU) following the central hair bundle (21) at the highest position. This also applies to the plurality of side hair bundles (22) which are also formed in a mountain shape. Further, when the central bristle bundle (21) of the toothbrush (1) is configured to be higher than the surrounding side bristle bundles (22), the central bristle bundles (21) are composed of teeth (T) and gums (M). When entering the deepest part of the gap (MG) or groove (TU), following the central bristle bundle (21), the lateral bristle bundle (22) having a height lower than that of the central bristle bundle (21) is described above. Gently insert into the teeth (T) and gums (M) adjacent to the deepest part. Further, when the inclination angle (θ1) of the central hair bundle (21) and the inclination angle (θ2) of the side hair bundle (22) which are inclined in a mountain shape are the same, the central hair bundle (21) has teeth. When entering the gap (MG) between the (T) and the gums (M) or the deep part of the groove (TU), the side hair bundle (22) adjacent to the lateral direction (Q) of the central hair bundle (21) is , At the same angle as that of the central hair bundle (21), the tooth (T) or the gum (M) in the portion adjacent to the deep portion enters and abuts. In this way, the gap (MG) or groove (TU) between the tooth (T) and the gum (M), and the part of the tooth (T) and gum (M) adjacent to the gap (MG) or the groove (TU) are divided into the central hair bundle (21) and the lateral hair By effectively cleaning the bundle (22), a toothbrush capable of effectively removing stains in the entire oral cavity including the spaces between teeth and the gap between the teeth and gums by brushing with light force for a short time. Become.

  Further, in the toothbrush (1) having the above-described configuration, the central bristle bundle (21) may be harder than the side bristle bundle (22). In this way, the hardness of the hair bundle (21, 22) that gradually becomes longer (higher) as it approaches the center of the hair transplant part (12) becomes gradually harder as it gets closer to the center of the hair transplant part (12). The rigidity of the brush portion 20 can be kept high by going up. Therefore, it is possible to maintain high cleaning performance of the central hair bundle (21) when entering the deep part of the gap (MG) between the teeth (TG), the tooth (T) and the gum (M), or the groove (TU). it can.

  Further, in the toothbrush (1) having the above structure, the bristles in the central bristle bundle (21) may be larger than the bristles in the side bristle bundle (22). By increasing the amount of hair in the central bristle bundle (21), the rigidity of the central bristle bundle (21), which is longer than the side bristle bundle (22), can be improved. Therefore, it is possible to maintain high cleaning performance of the central hair bundle (21) when entering the deep part of the gap (MG) between the teeth (TG), the tooth (T) and the gum (M), or the groove (TU). it can.

  The reference numerals in the above parentheses indicate the reference numerals of the corresponding constituent elements in the embodiments described later as an example of the present invention.

  According to the toothbrush of the present invention, the central bristle tufts penetrate deeply into the grooves on the tooth surface or between the teeth or between the teeth and gums, and the lateral bristle tufts continue to the portion adjacent to the central bristle tufts. Since it has a structure that allows easy entry, it is possible to more effectively clean the entire oral cavity by brushing with a light force for a short time.

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 teeth and gums, and is the figure which looked at the teeth from above. It is a figure which shows the state which is cleaning the clearance gap between teeth and the clearance gap between teeth and gums, and is the figure which looked at the teeth and gums 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. The toothbrush 1 shown in FIG. 1 includes a toothbrush body 10 having a long handle 11 and a bristle portion 12 formed at the tip of the handle 11, a plurality of central bristles 21, and a plurality of side bristles 22. It has the brush part 20 comprised.

  The handle 11 has a grip portion 11A that is gripped by a user, and a neck portion 11B that is elastic because the width is narrower than that of the grip portion 11A. With this configuration, the user cleans the tooth T (see FIGS. 3 and 4) by gripping the grip portion 11A 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 forming the central bristles 21 and side bristles 22 of the brush portion 20 are relatively soft such as nylon. Made of synthetic resin material. Further, the brush portion 20 of the toothbrush 1 preferably has a size of about 2 cm in order to easily enter the oral cavity and to make a small turn.

  The brush portion 20 of the toothbrush 1 will be specifically described. FIG. 2 is an enlarged view of the brush section 20, (a) is a plan view, (b) is a side view, and (c) is a front view. As shown in FIG. 2, the bristles forming the brush portion 20 are classified into two types, that is, the central bristles 21 and the side bristles 22, depending on the location where the bristles 12 are arranged. That is, the brush part 20 includes a plurality of central bristles 21 arranged along the longitudinal direction P at the center of the flocked part 12, and a plurality of bristles arranged adjacent to each other so as to surround the center bristles 21. It is composed of a bundle of side hairs 22. Next, the configurations of the central hair bundle 21 and the side hair bundle 22 will be specifically described.

  As shown in FIG. 2A, the central bristle bundle 21 is composed of a plurality of bristle bundles and is arranged side by side in the longitudinal direction P at the central portion of the tufting portion 12. In the present embodiment, an example in which six central hair bundles 21 are arranged is shown. The plurality of central bristles 21 are formed to be inclined in a mountain shape (pyramid shape) so as to become higher as they approach the center of the brush portion 20. Specifically, as shown in FIG. 2B, the three bundles on the handle side of the central bristle bundle 21 linearly increase as they approach the tip portion, and the three bundles on the tip portion side are the tip ends. It is formed so as to be linearly lowered as it approaches the portion. Further, as shown in FIGS. 2B and 2C, the height of the central hair bundle 21 is higher than that of the adjacent side hair bundle 22.

  As shown in FIG. 2A, the plurality of side hair bundles 22 are arranged adjacent to the center hair bundle 21 so as to surround the periphery of the center hair bundle 21. In this embodiment, an example in which 17 side hair bundles 22 are arranged around the central hair bundle 21 is shown. Specifically, three side hair bundles 22 are arranged on the most handle side of the brush portion 20 in FIGS. 2A and 2B. In addition, the side part hair bundles 22 are arranged adjacent to each other in the lateral direction Q (direction orthogonal to the longitudinal direction P) of the central part hair bundles 21 by six. Therefore, the six side bundles of side hairs 22 are seen from the side as shown in FIG. 2B, and the root portions of the hair bundles appear to overlap the center hair bundle 21. Further, two bundles of side hairs 22 are arranged closer to the tip end side than the center hair bundle 21. The number of bristle tufts on the handle side is three, while the number of side bristle tufts 22 on the tip end side is two, so that the width of the tip end side of the brush portion 20 can be narrowed. .. As shown in FIG. 2B, the four bunches on the handle side of the side hair bundle 22 linearly increase as they approach the tip portion, and the four bunches on the tip portion side approach the tip portion. And is formed so as to be linearly lowered.

  As shown in FIG. 2B, the inclination angle θ1 of the central hair bundle 21 and the inclination angle θ2 of the side hair bundle 22 that are inclined in a mountain shape are the same. In addition, the hardness of the central bristle bundle 21 is configured to be harder than that of the side bristle bundle 22. Further, in this connection, 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 portion 20 can be kept high. In the present embodiment, the central hair bundles 21 are arranged in one row along the longitudinal direction P, but the number is not necessarily limited to one row, and a plurality of rows may be arranged. Further, the number of the central hair bundles 21 or the side hair bundles 22 is not limited to that in this embodiment.

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

  At this time, the central hair bundles 21 and the side hair bundles 22 are formed in a shape that is inclined in a mountain shape (pyramid shape), so that the top of the mountain shape is not only the surface TS of the tooth T but also the groove of the tooth T. TUs, interdental TGs, gaps MG between the teeth T and the gums M, etc. can be easily entered, and dirt at deep positions such as the grooves TUs of the teeth T, the interdental TGs, the gaps MG between the teeth T and the gums M can be scraped off. It will be 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 apex The tufts of hair 21 and the tufts of side hair 22 tend to sequentially 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. Therefore, by these synergistic effects, it is possible to effectively remove stains in the entire oral cavity including the interdental TG and the gap MG between the tooth T and the gum M by brushing with a short time and with a light force.

  Moreover, since the central bristle bundle 21 of the toothbrush 1 is configured to be higher than the surrounding side bristle bundles 22, the peaks 21T and the lateral bristle bundles of the central bristle bundle 21 inclined in a mountain shape (pyramid shape) are formed. The apex 22T of 22 enters deep inside the groove TU of the tooth T, the interdental TG, and the gap MG between the tooth T and the gum M. As a result, 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 for a short time with a light force.

  Further, as described above, since the inclination angle θ1 of the central hair bundle 21 and the inclination angle θ2 of the side hair bundle 22 which are inclined in a mountain shape are the same, the top portion 21T of the central hair bundle 21 has teeth T. When entering the deep portion of the gap MG or the groove TU of the gum M and the gum M, the side bristle bundles 22 adjacent to the lateral bristle direction Q of the central bristle bundle 21 have the same angle as that of the central bristle bundle 21 and the deep portion. The tooth T or gum M adjacent to the tooth T and the tooth M. In this way, the gap MG or the groove TU between the tooth T and the gum M and the portion of the tooth T and the gum M adjacent to the gap MG and the portion adjacent to the tooth T are effectively cleaned by the central hair bundle 21 and the side hair bundle 22, thereby shortening the time. Moreover, by brushing with a light force, it becomes a toothbrush that can effectively remove stains in the entire oral cavity including the spaces between teeth and the gap between the teeth and gums.

  Further, as shown in FIG. 3, in the toothbrush 1 of this embodiment, the length dimension L1 of the flocked portion 12 in the longitudinal direction P is set to be approximately the same as the width dimension L2 of two teeth T. .. As a result, it is possible to easily brush two teeth T in order, so that it is possible to clean the inter-tooth space TG and the gap MG between the tooth T and the gum M one by one without leakage, and in a shorter time. It enables effective cleaning of.

  As described above, in the toothbrush 1 of the present embodiment, when the central bristles 21 and the side bristles 22 are configured in a mountain shape (pyramid type), a plurality of central bristles 21 and a plurality of side bristles are formed. Since the tip of the central hair bundle 21 at the highest position of 22 can enter deep positions such as the gap MG between the tooth T and the gum M and the groove TU without being interfered by the surrounding hair bundles. It is also possible to scrape off dirt in 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 central hair bundle 21 at the highest position and has the second highest position is also the most It becomes easy to enter the gap MG or the groove TU following the central hair bundle 21 at the high position. The same applies to the plurality of side hair bundles 22 that are also formed in a mountain shape.

  When the central bristle bundle 21 of the toothbrush 1 is formed higher than the surrounding side bristle bundles 22, when the central bristle bundle 21 enters the gap MG between the tooth T and the gum M or the deepest part of the groove TU. After the central bristle bundle 21, the lateral bristle bundle 22 having a height lower than that of the central bristle bundle 21 comfortably enters the tooth T or gum M of the portion adjacent to the deepest portion.

  Further, when the inclination angle θ1 of the central hair bundle 21 and the inclination angle θ2 of the side hair bundle 22 that are inclined in a mountain shape are the same, the central hair bundle 21 causes the gap MG between the tooth T and the gum M and the groove TU. When entering the deep part, the side hair tufts 22 adjacent to the lateral direction Q of the central hair tuft 21 are at the same angle as the central hair tuft 21 and the teeth T and gums of the portion adjacent to the deep tuft Enter M and make contact. In this way, the gap MG or the groove TU between the tooth T and the gum M and the portion of the tooth T and the gum M adjacent to the gap MG and the portion adjacent to the tooth T are effectively cleaned by the central hair bundle 21 and the side hair bundle 22, thereby shortening the time. Moreover, by brushing with a light force, it becomes a toothbrush that can effectively remove stains in the entire oral cavity including the spaces between teeth and the gap between the teeth and gums.

  Further, in the toothbrush 1 having the above configuration, the central bristle bundle 21 may be harder than the side bristle bundle 22. In this way, when the hardness of the hair bundles 21 and 22 that gradually increases in length toward the center of the flocked portion 12 is gradually increased toward the center of the flocked portion 12, the rigidity of the brush portion 20 increases. Can be kept high. Therefore, it is possible to maintain high cleaning performance of the central hair bundle 21 when entering the interdental TG, the gap MG between the tooth T and the gum M, and the deep portion of the groove TU.

  Further, in the toothbrush 1 having the above-described configuration, the bristles of the central bristle bundle 21 may be larger than the bristles of the side bristle bundle 22. By increasing the amount of hair in the central bristle bundle 21, the rigidity of the central bristle bundle 21 that is longer than the side bristle bundle 22 can be improved. Therefore, it is possible to maintain high cleaning performance of the central hair bundle 21 when entering the interdental TG, the gap MG between the tooth T and the gum M, and the deep portion of the groove TU.

  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 are possible within the scope of the claims and the technical idea described in the specification and drawings. Deformation is possible.

1 ... Toothbrush 10 ... Toothbrush main body 11 ... Handle 11A ... Gripping portion 11B ... Neck portion 12 ... Flocking portion 20 ... Brush portion 21 ... Central bristle bundle 21T ... Top portion 22 ... Side bristle bundle 22T ... Top portion M ... Gums MG ... ( (Gap between tooth and gum) P ... Longitudinal direction Q ... Short side direction T ... Tooth TG ... Tooth TS ... Tooth surface TU ... Groove

Claims (3)

In a toothbrush having a long handle, a bristling part formed at the tip of the handle, and a brush part composed of a plurality of bristles to be bristled in the bristling part, wherein the brush part cleans teeth.
The brush portion, as the bristles, a plurality of central bristles arranged side by side in the longitudinal direction of the handle, and a first portion arranged on the handle side with respect to a plurality of the central bristles. By including a second portion arranged on both sides in a direction orthogonal to the longitudinal direction of the plurality of central portion hair bundles and a third portion arranged on the tip end side of the plurality of central portion hair bundles And a plurality of side hair bundles arranged adjacent to each other so as to surround the periphery of the plurality of central hair bundles,
The second portion of the central hair bundle and the side hair bundle is formed to be inclined in a mountain shape so as to become higher as it approaches the center in the longitudinal direction of the handle in the hair transplant portion,
The height of the central hair bundle is higher than any of the first portion, the second portion, and the third portion of the adjacent side hair bundle,
The inclination angle of the central portion hair bundle and the inclination angle of the second portion of the side portion hair bundle which are inclined in a mountain shape are the same,
The number of the side hair bundles arranged on the tip side of the central hair bundle is smaller than the number of the side hair bundles arranged on the handle side of the central hair bundle. A toothbrush characterized by being present. The toothbrush according to claim 1, wherein the central bristle bundle is harder than the side bristle bundle. The toothbrush according to claim 1, wherein the bristles in the central bristles are larger in amount than the bristles in the side bristles.

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