JP3161347U - toothbrush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toothbrush capable of easily brushing a tooth side portion facing between teeth and easily cleaning an artificial part such as an implant or a bridge. SOLUTION: The hair bundles are arranged in three parallel rows, the head side head hair bundles 11 and 31 at the head of the two rows on both sides occupy the tip position with a mutual interval a1, and the second hair bundles 12 and 32 on both sides are An interval b1 equivalent to the interval a1 between the head hair bundles on both sides is located between the head hair bundles 11 and 31 on both sides, and the third hair bundles 13 and 33 on both sides are equivalent to the interval a1 between the head hair bundles on both sides. A distance b2 is positioned between the second hair bundles 12 and 32 on both sides, and six or more hair bundles in the center row are along the center row at a distance c2 that is smaller than the spacing a1 between the head hair bundles on both sides. The head hair bundle 21 in the center row is located behind the both side head hair bundles 11 and 31 and is located denser than the hair bundles in the both side rows. [Selection] Figure 1

Description

  The present invention relates to a toothbrush, and more specifically to a toothbrush that can easily polish a tooth including an interdental space.

Maintaining healthy teeth is important for health and beauty. In particular, it is desirable to encourage daily tooth brushing to remove food residue and plaque between teeth. For this reason, toothbrushing with a toothbrush is important, and many types of toothbrushes such as an interdental brush are commercially available. However, an interdental brush using a wire as a core material is poor in durability, and is easily bent when used several times, and finally easily broken. Further, since the hair is provided outward around the wire, the wire hits the tooth by brushing, and in an extreme case, the tooth may be scraped to form a circular hole. For this reason, the proposal of the toothbrush for facilitating the brushing of an interdental part irrespective of the interdental brush has been made. For example, a structure has been proposed in which toothbrush bristles are arranged in rows at intervals of tooth widths so that brushing between the teeth can be easily performed (Patent Documents 1 and 2). In addition, a structure that facilitates the brushing of the interdental part by arranging the cross-sectional shape of the hair bundle in a triangular shape and disposing it at intervals of the tooth width is proposed (Patent Document 3). By using these toothbrushes, interdental brushing can be easily performed to some extent.
JP 2002-0778529 A JP 2004-237031 A JP 2007-151704 A

The above toothbrush can, however, brush the interdental part from the front side or the back side, but faces the teeth by inserting the hair of the toothbrush between the teeth and reciprocating in the buccal tongue direction. The tooth side cannot be brushed. There is no interest in reciprocating movement in the buccal tongue direction. However, reciprocating brushing in the buccal tongue direction with respect to the side of the tooth facing between the teeth where the gap is generated is very important for maintaining healthy teeth.
In addition, as the aging society progresses, the proportion of humans wearing artificial objects such as bridges and implants is increasing rapidly. If these artifacts are not well maintained, they can cause lesions such as alveolar pyorrhea.
An object of this invention is to provide the toothbrush which can brush the tooth side part which faces between teeth easily, and can easily clean the artificial-article places (concave part), such as an implant and a bridge | bridging.

The toothbrush of the present invention includes a brush head having a plurality of hair bundles. In this toothbrush, the hair bundles are arranged in three parallel rows, and the two rows on both sides have the hair bundles at the same position from the tip. The two side head hair bundles at the beginning of the two rows on both sides occupy the tip position with an interval a ₁ between them, and the second side second hair bundle from the beginning of the two rows on both sides is the distance a ₁ between the head hair bundles on both sides. An interval b ₁ that is equal to or greater than equivalent is located between the leading hair bundles on both sides, and the third third hair bundle on both sides from the beginning of the two rows on both sides is equal to the spacing a _{1 on} both side leading hair bundles or the interval b ₂ in excess of equivalent, positioned apart between the both-side second hair bundle. Six or more hair bundles in the center row are located closer to the hair bundles in the both side rows along the center row at intervals smaller than the interval a ₁ between the head hair bundles on both sides. It is located on the back side of the head hair bundle.

According to the arrangement, the two tufts at intervals a ₁ to the tip position of the brush head is positioned. Interval a ₁ is an interval made by top hair bundle of the central column is retired after. The two side head hair bundles at the interval a ₁ are used to scrape and clean the concave portions associated with the artificial objects such as implants and bridges. That is, one or both ends of the head hair bundles on both sides reach a narrow and deep concave portion attached to the artificial object, and it becomes easy to squeeze out food residue and the like accumulated there. Moreover, not only the artificial object but also the food residue collected between the teeth of a healthy tooth can be easily squeezed out using one of the head hair bundles on both sides. Since the plurality of hairs are spread a little at the tip of the hair bundle, it can be removed without sticking food debris to the side of the tooth facing between the teeth. In addition, when the food residue is soft and small when using the insulator, the insulator is conical, so it may be pushed into the root side (gum side) between the teeth, but the size, hardness and position of the food residue Regardless of this, food waste can be completely removed.
Furthermore, one hair or several hairs in one hair bundle can be easily inserted between teeth. At this time, the remaining hair in one hair bundle can be bent outside the teeth. Since there are few hairs if it is limited to one hair bundle, even if it bends outside between teeth, a big force will not be generated. For this reason, even between very narrow teeth, hair can be easily inserted and brushed or cleaned.
In conventional toothbrushes, the top hair bundles in three rows are gathered at the tip of the brush head, so even if only one hair bundle is inserted between the teeth, the other hair bundle becomes an obstacle, and the operability is impaired. (Causes a great hindrance). As in the present invention, the front hair bundle in the central row is retracted to increase the spacing between the two rows on both sides, and the second hair bundle on both sides is retracted later with a wide spacing b ₁ (≧ a ₁ ). Thus, using the one hair bundle, cleaning between teeth can be easily performed as described above.

Further, both side second tuft is opened on both sides leading tuft and spacing b ₁ a _(≧ a _1). Since this interval b ₁ is substantially the same as the tooth width of the front teeth and the back teeth, by placing the toothbrush or the brush head sideways, the leading hair bundle is placed between one of the front teeth and the back teeth, and the second hair is placed between the other teeth. It becomes easy to insert the hair bundle. In this case, since the hair bundle is inserted between the teeth with the brush head sideways, the hair bundle of one row (first row or third row) among the hair bundles on both side rows can be easily put. By inserting a hair bundle and reciprocating in the cheek tongue direction, it is possible to easily brush between the teeth. At this time, the hair bundle is brushed, so there is no pain between the teeth or gums.
Further, both sides third tuft is spaced intervals b ₂ a _(≧ a ₁₎ between the two sides the second hair bundle. The greater spacing b ₂ also, when inserting the both sides leading tuft and bilateral second hair bundle between teeth, to allow the insertion of both sides third bristle bundles between adjacent teeth of the teeth simultaneously. Therefore, it is possible to efficiently brush between the teeth of two teeth arranged side by side. That is, a hair bundle can be inserted between two teeth outside the two teeth arranged side by side and between one tooth between the two teeth, and brushed back and forth in the buccal tongue direction.
In short, by opening the mutual distance a ₁ between the first hair bundles on both sides, it is easy to sweep out foreign substances that have entered the recesses associated with implants, bridges, etc. By arranging the three hair bundles at intervals, these hair bundles can be inserted between the teeth at the same time to efficiently brush between the teeth. Brushing can be performed safely without reciprocating the teeth or gums by reciprocating the hair bundle in the buccal tongue direction.
Furthermore, since the central row of hair bundles is arranged more densely than the two side rows, it is convenient for brushing the front of the teeth and gums. That is, the central row of toothbrushes is suitable for brushing the tooth surface and gum front rather than between the teeth.

Than sides leading tuft head tufts of the middle row, it is possible to both sides leading tuft spacing a ₁ of about half or more, located on the rear side. Thereby, the front hair bundle in the center row can be retracted by a sufficient distance from the front hair bundles on both sides, and the operation of digging out food waste from the concave portions such as bridges and implants can be facilitated. That is, it is possible to operate both side leading hair bundles without being obstructed by the leading hair bundles in the central row.

The fourth hair bundle on both sides, which is the fourth from the beginning of the two rows on both sides, may be positioned with an interval b ₃ that is equal to or greater than the interval a ₁ between the head hair bundles on both sides between the third hair bundles on both sides. it can. Thereby, the third hair bundle and the fourth hair bundle can be inserted between the teeth and brushed between the teeth. When brushing your teeth quickly during busy mornings, it is convenient and efficient to brush between your teeth in many parts of the brush head.

  Two rows of hairs on both sides can be 5 or more in each row. If the number of hair bundles in the rows on both sides is less than 5, the hair bundles tend to sag and the service life is short. This is because by arranging five or more rows in each row, the force applied by the human arm force can be distributed and burdened, and the hair bundle is not greatly damaged. Regardless of theory, this is a fact obtained as a result of repeated clinical trials.

  The number of hair bundles in the central row can be 7 or more. Thereby, the tooth surface and gum can be efficiently polished by the hair bundle in the center row.

  Two rows on both sides corresponding to the central rear region including the central last hair bundle of the last tail in the middle row and the rear second hair bundle immediately in front of the last tail. It can be located in the area. Accordingly, the edges of the hair bundles can be aligned in the two-sided row to the middle row in the rear region of the brush head, and the hair bundles are densely packed and the rigidity is increased. For this reason, the tooth surface and gum can be efficiently and securely polished with the hair bundle at the rear edge.

  According to the toothbrush of the present invention, tooth side portions facing between teeth can be easily brushed, and cleaning in an implant, a bridge, or the like can be easily performed.

The arrangement | sequence of the hair | bristle bundle in the brush head of the toothbrush of Embodiment 1 of this invention is shown, (a) is a front view, (b) is a side view. It is a perspective view of the whole toothbrush of FIG. The arrangement | sequence of the hair | bristle bundle in the brush head of the toothbrush of Embodiment 2 of this invention is shown, (a) is a front view, (b) is a side view.

(Embodiment 1)
1A and 1B show an arrangement of hair bundles in a brush head 51 of a toothbrush 50 according to a first embodiment of the present invention. FIG. 1A is a front view and FIG. 1B is a side view. FIG. 2 is a perspective view of the toothbrush 50. Although the hair bundle is shown in FIG. 2, it is only an indication of where the hair bundle is, and the arrangement of the hair bundle can be known from FIG. As shown to Fig.1 (a), in the brush head 51, the hair | bristle bundle is arranged in 3 rows of both sides 2 rows 11-15, 31-35, and center rows 21-28.

<Features of the present invention>
The feature of this school plan is the following hair bundle arrangement. It enumerates together with an effect.
(1): both sides top hair bundle 11, 31 is a head of hair bundles of both sides two rows are spaced _{a 1.} There is no central row of hair bundles between the head hair bundles 11 and 31 on both sides. Such an arrangement of the head hair bundles on both sides facilitates picking up impurities while inserting one or both of the hair bundles into a narrow concave portion associated with an artificial object such as a bridge or an implant. Implants, bridges, etc. can cause serious illnesses such as alveolar pyorrhea if not properly maintained. In order to prevent such serious illnesses, it is usually cleaned by a special cleaning device or dentist. However, by using the toothbrush of the present invention, without using any special device, the food residue that accumulates in the concave portion attached to the artificial object by one or both of the front hair bundles 11 and 31 at the time of daily brushing is used. Etc. can be easily removed. Even if it is a narrow and deep recessed part, one hair bundle can be inserted deeply into the inside and a foreign substance can be scraped out.
Moreover, not only the artificial object but also the food residue collected between the teeth of a healthy tooth can be easily squeezed out using one of the head hair bundles on both sides. Since the plurality of hairs are spread a little at the tip of the hair bundle, it can be removed without sticking food debris to the side of the tooth facing between the teeth. In addition, when the food residue is soft and small when using the insulator, the insulator is conical, so it may be pushed into the root side (gum side) between the teeth, but the size, hardness and position of the food residue Regardless of this, food waste can be completely removed.
Furthermore, one hair or several hairs in one hair bundle can be easily inserted between teeth. At this time, the remaining hair in one hair bundle can be bent outside the teeth. Since there are few hairs if it is limited to one hair bundle, even if it bends outside between teeth, a big force will not be generated. For this reason, even between very narrow teeth, hair can be easily inserted and brushed or cleaned.
In the conventional toothbrush, the front hair bundle and the rear hair bundle in three rows are gathered at the tip of the brush head, so that even if only one hair bundle is inserted between the teeth, the other hair bundle has a large obstacle. As a result, the operability was lowered or the operation was impossible. As in the present invention, the leading hair bundle in the central row is retracted to increase the distance between the two rows on both sides, and the second hair bundle on both sides is retracted later with a wide interval b ₁ (≧ a ₁ ). As described above, the interdental cleaning can be easily performed by using one hair bundle of both side head hair bundles. When cleaning a concave portion that does not accompany an artificial object such as a bridge or an implant, one or both of the head hair bundles on both sides may be used.

(2): Both side second hair bundles 12 and 32, which are the second hair bundles from the head of the two rows on both sides, are arranged in each row at a distance b ₁ from both side head hair bundles 11 and 31. . This interval b ₁ is equal to or larger than the interval a ₁ between the head hair bundles 11 and 31 on both sides.
Further, both sides third bristle bundles 13, 33 is a third tufts from the head on both sides two rows, each row being spaced from both the second bristle bundles 12 and 32 by a distance b _2. This interval _{b 2} is either equal to the interval a1 of both sides head hair bundles 11 and 31, large beyond the equivalent.
In the case of the toothbrush in FIG. 1, the distances b ₁ and b ₂ are equivalent to the distance a ₁ between the _two side head hair bundles 11 and 31.
By the above configuration, toothbrush by taking a posture of the tufts of the first row in the lateral insertion between teeth, assuming at least, for example, a certain tooth T _1, is inserted between the back side teeth (teeth T1 It is possible to realize a hair bundle insertion state of both side head hair bundles 11 / tooth T ₁ / both side second hair bundles 12) inserted between the front teeth of tooth T ₁ . By reciprocating the hair bundle in the direction of the cheek tongue in this insertion state, interdental brushing can be performed easily and daily without brushing the teeth and gums.
Moreover, it is not necessary to insert the both side head hair bundles 11 and 31, both side second hair bundles 12 and 32, and both side third hair bundles 13 and 33 at the same time between the teeth. If there is a possibility that three bristle bundles can be inserted between teeth, it is possible to immediately use one bristle bundle that is easily inserted between the teeth at a convenient time during the operation of the toothbrush. . The flexibility of the hair bundle used in interdental brushing can be improved.
Further, by inserting one of the third hair bundles 13 and 33 on both sides, for example, 13 between the front teeth of the adjacent tooth T2, it is possible to brush between the front teeth of the tooth T2 in parallel. For example, every morning, the time for brushing teeth before going to work, attending school, etc. is limited, and it is preferable in terms of time saving that many teeth can be brushed in parallel. Moreover, effectiveness can be improved also in the point of the improvement of the flexibility of the hair | bristle bundle used mentioned above.
Further, the fourth sides fourth tufts at the beginning of both sides two rows, the spacing b ₃ more than equal or equivalent distance a ₁ on both sides leading tufts, located spaced between the the both side third hair bundle be able to. This can further improve the efficiency of tooth brushing.

(3): a central column of the first tufts 21 than both side top tufts 11 and 31, located on the rear side by a distance _{c 1.} The distance c ₁ is preferably about half or more of the distance a ₁ between the head hair bundles on both sides. As a result, the head hair bundle in the center row is retracted from the head hair bundle on both sides by a sufficient distance, and the operability of digging out food debris from a concave portion such as a bridge or an implant by one of the head hair bundles 11 and 31 on both sides is improved. Can be increased. That is, the operability of one of the both side head hair bundles 11 and 31 can be improved without being obstructed by the head hair bundle in the center row.
(4): The hair bundles in two rows on both sides can be 5 or more in each row. When the number of hair bundles on both rows is less than 5, the hair bundles are liable to sag and the service life is short. This is because by arranging five or more rows in each row, the force applied by the human arm force can be distributed and burdened, and the hair bundle is not greatly damaged. Regardless of theory, it is a fact obtained as a result of repeated clinical trials.
(5): The number of hair bundles in the center row can be 7 or more. Tufts of the middle row 21 to 28 are arranged so densely in relatively small equidistant c _2. The interval c ₂ ≦ c ₁ is satisfied. As a result, the tooth surface and gums can be efficiently polished by the hair bundle in the center row.
(6): Corresponding to the central rear side region including the last central hair bundle of the last tail in the middle row and the rear second hair bundle just before the last tail, the rear last hair bundle in the two rows on both sides It can be located in the area of two rows on both sides. Accordingly, the edges of the hair bundles can be aligned in the two-sided row to the middle row in the rear region of the brush head, and the hair bundles are densely packed and the rigidity is increased. For this reason, the tooth surface and gum can be efficiently and securely polished with the hair bundle at the rear edge.

(Embodiment 2)
FIGS. 3A and 3B show an arrangement of hair bundles in the brush head 51 of the toothbrush according to the second embodiment of the present invention. FIG. 3A is a front view and FIG. 3B is a side view. Although the arrangement is almost the same as the arrangement of the hair bundles shown in FIG. 1, in the two rows on both sides, the distance b ₁ between the two side head hair bundles 11 and 31 and the two side second hair bundles 12 and 32 is the second embodiment. Then, it is larger than the arrangement of the hair bundle of the first embodiment (FIG. 1). That interval b ₁ described above, with respect to the spacing a ₁ on both sides leading tufts, a more than equal size. Due to the large distance b ₁ in the present embodiment, the both-side head hair bundles 11 and 31 are slightly separated from the other hair bundles. As a result, the operability of both side head hair bundles 11 and 31 can be improved.
Further, by slightly shifting the center of gravity of the hair bundle array on the rear side of the brush head 51, the brushing of the tooth surface can be made somewhat strong and reliable.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The toothbrush of the present invention can easily brush between teeth while cleaning narrow concavities associated with artificial objects such as implants and bridges by a simple mechanism, and promotes people's health, especially for elderly people. It can have a great effect on maintaining your health.

11, 31 Both sides head hair bundle, 12, 32 Both sides second hair bundle, 13, 33 Both sides third hair bundle, 14, 34 Both sides fifth hair bundle, 15, 35 Both sides tail hair bundle, 21 Bundle, 27 Rear 2nd bristle bundle in the center row, 28 Last tail bundle in the middle row, 50 Toothbrush, 51 Brush head, 52 Toothbrush grip portion, 53 Toothbrush neck, a ₁ Spacing between the front hair bundles on both sides, b ₁ The distance between both side head hair bundles and both side second hair bundles, b ₂ Both side second hair bundles and both side third hair bundles, b ₃ Both side third hair bundles and both side fourth hair bundles, c ₁ retreat distance from both sides of the head hair bundles of the central top hair bundle, the interval of the hair bundle c ₂ center column.

Claims (6)

A toothbrush comprising a brush head having a plurality of hair bundles,
The hair bundles are arranged in three parallel rows,
The two rows on both sides have hair bundles at the same position from the tip,
The top two side head hair bundles in the two rows on both sides occupy the tip position with a space a ₁ between each other,
The second hair bundles on the second side from the head of the two rows on both sides are positioned with an interval b ₁ that is equal to or greater than the distance a ₁ between the head hair bundles on both sides, between the both head hair bundles,
The third bristles on the third side from the head of the two rows on both sides are positioned with a gap b ₂ that is equal to or exceeds the gap a ₁ between the bristles on both sides between the second bristles on both sides. ,
Six or more hair bundles in the central row are located closer to the two rows on both sides along the central row at intervals smaller than the interval a ₁ between the head hair bundles on both sides. A toothbrush characterized in that the bristle bundle is located on the rear side of the head bristle bundle on both sides. 2. The toothbrush according to claim 1, wherein the leading hair bundle of the center row is located on the rear side of the both-side leading hair bundles by about half or more of the interval a ₁ between the both-side leading hair bundles. The fourth hair bundle on both sides from the head of the two rows on both sides is positioned with a space b ₃ that is equal to or exceeds the space a ₁ between the hair heads on both sides between the third hair bundles on both sides. The toothbrush according to claim 1 or 2, characterized in that.   The toothbrush according to any one of claims 1 to 3, wherein the bristles in two rows on both sides are five or more in each row.   The toothbrush according to any one of claims 1 to 4, wherein there are seven or more bristles in the central row. Both sides corresponding to the central rear side region including the last central hair bundle of the last tail of the central row and the second rear hair bundle immediately before the last tail The toothbrush according to claim 1, wherein the toothbrush is located in two rows of regions.

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