JP5439155B2 - Interdental cleaning tool and manufacturing method thereof - Google Patents

Description

  The present invention relates to an interdental cleaning tool for removing dirt such as plaque adhering to a tooth surface and a method for manufacturing the same.

  2. Description of the Related Art An interdental cleaning tool is known in which a thread is wound around both ends of a substantially U-shaped holder. This kind of interdental cleaning tool is able to scrape plaque and food traps between teeth by inserting thread between both ends of the holder and inserting it between teeth and moving it back and forth and up and down .

JP 2000-197647 A

  However, the conventional interdental cleaning tool only removes plaque and food traps between the teeth because the linear thread stretched across both ends of the holder reciprocates between the teeth. There was a problem that it was difficult to remove the plaque adhering to the curved surface.

  The problem to be solved by the present invention is to provide an interdental cleaning tool that can remove not only the interdental space but also dirt such as plaque adhering to the curved surfaces of adjacent teeth.

  According to the present invention, there is provided an interdental cleaning tool for removing dirt such as plaque adhering to the tooth surface, wherein the first cleaning unit is inserted between the teeth, and at least one of the first cleaning unit. An interdental cleaning tool having a pair of second cleaning parts that can be expanded from the end is provided.

  In the present invention, when the first cleaning part is inserted between the teeth, the second cleaning part that can be expanded from the end of the first cleaning part faces the curved surface of the tooth. While reciprocating up and down or back and forth while making contact, the second cleaning unit reciprocates up and down or back and forth while contacting the curved surface of the teeth. For this reason, when the interdental cleaning tool is moved up and down or back and forth, the first cleaning unit removes plaque, food traps and the like sandwiched between the teeth, and the second cleaning unit adheres to the curved surface of the teeth. Dirt such as can be removed.

It is a perspective view of the interdental cleaning tool and the interdental cleaning tool group which concern on embodiment of this invention. It is a block diagram of the interdental cleaning tool which concerns on embodiment of this invention. It is a figure which shows an example of the textile structure | tissue of the interdental cleaning tool which concerns on embodiment of this invention. It is a use condition figure of the interdental cleaning tool concerning the embodiment of the present invention. It is explanatory drawing of the cleaning effect | action of the interdental cleaning tool which concerns on embodiment of this invention. It is explanatory drawing of the cleaning effect | action of the interdental cleaning tool which concerns on embodiment of this invention. It is a graph which shows the measurement result of the frictional force between the interdental cleaning tool which concerns on embodiment of this invention, and an artificial tooth. It is a graph which shows the measurement result of the resistance force which the interdental cleaning tool which concerns on embodiment of this invention receives when inserting between artificial teeth. It is a perspective view of the interdental cleaning tool integrated with the holder. It is a perspective view of an interdental cleaning tool with a holder.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
The interdental cleaning tool in the present embodiment is a tool for removing dirt such as plaque and food candy adhering to the tooth surface.

  FIG. 1 is a perspective view of an interdental cleaning tool group 10 in which a plurality of interdental cleaning tools 1 are continuously formed in a band shape. By cutting between the interdental cleaning tools 1, one interdental cleaning tool 1 can be obtained.

  FIG. 2 is a configuration diagram of one interdental cleaning tool 1. As shown in FIG. 2, the interdental cleaning tool 1 of the present embodiment includes a first cleaning unit 11 inserted between the teeth and a pair of first expandable parts from at least one end 11 a of the first cleaning unit 11. 2 It has the cleaning parts 12a1 and 12a2.

As shown in the figure, the pair of second cleaning parts 12 a 1 and 12 a 2 branches off from one end 11 a of the first cleaning part 11 and expands in a direction away from the one end 11 a of the first cleaning part 11. While extending. That is, the first cleaning unit 11 has a branch point at least at one end 11a. For this reason, a predetermined joint angle or a variable joint angle is formed between the first cleaning unit 11 and the second cleaning units 12a1 and 12a2. The joint angles of the second cleaning parts 12a1 and 12a2 with respect to the first cleaning part 11 are not limited and can be set arbitrarily. Moreover, the joint angle between the first cleaning unit 11 and the second cleaning unit 12a1 and the joint angle between the first cleaning unit 11 and the second cleaning unit 12a2 may be the same angle or different angles. Also good. Furthermore, the joining position of the 1st cleaning part 11 and the 2nd cleaning part 12a1 and the position different from the joining position of the 1st cleaning part 11 and the 2nd cleaning part 12a2 may be sufficient.
Incidentally, the interdental cleaning tool 1 shown in the figure has a substantially Y shape in which the second cleaning parts 12a1 and 12a2 branch off from the same branch point (position) and expand at an equal angle with respect to the first cleaning part 11. It is formed into a shape. Thus, by making the interdental cleaning tool 1 line symmetrical with respect to the first cleaning unit 11, the first cleaning unit 11 and the second cleaning units 12a1 and 12a2 and the tooth surface during interdental cleaning. Since the force generated between the teeth can be dispersed, it is possible to prevent a biased force from being applied to the teeth. As a result, since the 1st cleaning part 11 and the 2nd cleaning parts 12a1 and 12a2 move the tooth surface smoothly, the operativity can be improved.

  Moreover, as shown in FIG. 2, the interdental cleaning tool 1 of this embodiment attaches | subjects the code | symbol of 12 to 2nd cleaning part 12a1, 12a2, 12b1, 12b2 (it collects generically) at the both ends of the 1st cleaning part 11. , The same below). That is, while providing a pair of 2nd cleaning parts 12a1 and 12a2 which can be expanded from one end 11a of the 1st cleaning part 11, a pair of 2nd cleaning parts 12b1 which can be expanded from the other end 11b of the 1st cleaning part 11 is provided. And 12b2. In the embodiment according to the present invention, since the second cleaning unit 12 may be provided at least at one end of the first cleaning unit 11, like the interdental cleaning tool 1a shown in the broken line frame of FIG. The interdental cleaning tool 1 of a mode provided with a pair of 2nd cleaning parts 12a1 and 12a2 which can be expanded from one end 11a of the 1st cleaning part 11 can be provided.

  Furthermore, the interdental cleaning tool 1 shown in the figure has an annular holding portion 13a and 13b in which the expanded ends of the pair of second cleaning portions 12a1 and 12a2 (or 12b1 and 12b2) are joined and a finger can be inserted. Is formed. The size of the rings of the holding portions 13a and 13b is not particularly limited, and can be appropriately set according to the thickness of a human finger or the thickness of a locking portion of a holder used for locking the interdental cleaning tool 1. The length and width of the first cleaning unit 11 can be appropriately set according to the size of the area to be cleaned. In this embodiment, the size of the ring of the holding portion 13a formed on the one end 11a side of the first cleaning portion 11 is set so that the interdental cleaning tool 1 can be supported and used with the thumb and the index finger. It is set according to the thickness of the human thumb (statistical average value, etc.), and the size of the ring of the holding portion 13b formed on the other end 11b side of the first cleaning portion 11 is set to the thickness of the human index finger. It is set according to. In addition, since the thickness of a human finger changes with age and sex, the magnitude | size of the holding parts 13a and 13b can be set according to a user's attribute. Incidentally, in the present embodiment, the length and width of the first cleaning unit are set according to the width of the user's crown and the height (statistical average value, etc.) of the crown.

  In addition, as shown in the figure, the interdental cleaning tool 1 of the present embodiment has a cutting portion 14 connected to the holding portions 13a and 13b. Although the length of the cutting part 14 is not specifically limited, It is desirable to make it the length which can be cut | disconnected safely using a scissors or the blade of a cutter.

  In the present embodiment, the interdental cleaning tool 1 made of a belt-shaped woven fabric will be described as an example. However, the present invention is not limited to this, and the first cleaning unit 11 and the second cleaning unit 12 are composed of a single yarn or a plurality of yarns. Alternatively, it may be composed of braid, tape, film or the like.

  Hereinafter, based on FIG. 3, the manufacturing method of the interdental cleaning tool 1 of this embodiment is demonstrated.

  In the present embodiment, the interdental cleaning tool 1 including the first cleaning unit 11 and the second cleaning unit 12 is formed of a belt-shaped fabric having a predetermined width. In this manufacturing method, the 1st cleaning part 11 is comprised with a single woven fabric structure, and the 2nd cleaning part 12 connected to this is comprised with a double woven structure, By this, the strip | belt-shaped 1st cleaning part 11 and this A belt-like second cleaning unit 12 that expands and branches from the end of the first cleaning unit 11 can be formed.

  First, warp and weft used for weaving a belt-shaped fabric are prepared. In the present embodiment, silk having excellent biocompatibility is used for weaving the belt-shaped fabric. Of course, the types of warp and weft are not particularly limited. Chemical fibers such as nylon, polyester, polypropylene, polyethylene and vinylon, natural fibers such as cotton, hemp and animal hair, regenerated fibers such as rayon and cupra, acetate and promix Any of the semisynthetic fibers such as can be used. In the present embodiment, twisted yarn is used from the viewpoint of improving the fine workability, but the warp and weft used for weaving the belt-like fabric can be either a single yarn or a plurality of yarns. Moreover, although not particularly limited, a narrow fabric loom or a needle loom is used for weaving the belt-like fabric of this embodiment.

  Subsequently, the warp is set on the loom according to the width of the belt-like fabric. The width of the belt-like woven fabric is not particularly limited, but can be set to about 2 mm to 5 mm depending on the average tooth height of a person. The thickness of the belt-shaped woven fabric is not particularly limited, but can be 0.05 mm or more and 0.25 mm or less in consideration of the width between teeth.

  When the warp is set, weaving is started according to the fabric structure (design drawing) shown in FIG. More specifically, first, the set warp is interlaced with the weft to form a single belt-like woven fabric such as an oblique weave. This portion becomes the joint 15b shown in FIG. The joint portion 15b is a portion where the holding portions 13b formed in a later process are joined to each other. Although not particularly limited, in this example, the joining portion 15b (cutting portion 14) has a length of about 10 mm. In addition, this junction part 15b functions as the cutting part 14 shown in FIG.

  Next, the warp yarn is divided into two groups by the opening mechanism of the loom, and a pair of belt-like woven fabrics are formed by crossing the warp yarns with the warp yarns of the divided warp groups. This portion becomes a pair of second cleaning portions 12b1 and 12b2 and a holding portion 13b connected to the pair of second cleaning portions 12b1 and 12b2 shown in FIG. Although not particularly limited, in this example, the holding portion 13b (including the second cleaning portions 12b1 and 12b2) has a length of about 23 mm so that the index finger F2 can be inserted. This length is based on the average value of the width and thickness of the index finger of a woman in her thirties based on human body measurement data.

  Subsequently, the warp yarns are integrated, and the integrated warp yarns are interlaced with the weft yarns to form a single belt-like woven fabric such as a weave weave. This portion becomes the first cleaning unit 11 shown in FIG. By forming the first cleaning unit 11, the holding unit 13 b described above has an annular shape because both ends of the end on the first cleaning unit 11 side and the end on the joining unit 15 b side are closed.

  Again, the warp yarn is divided into two groups, and the weft yarns are interlaced with the warp yarns of each of the divided warp groups to form a double belt-like fabric. This portion becomes a pair of second cleaning portions 12a1 and 12a2 and a holding portion 13a connected to the pair of second cleaning portions 12a1 and 12a2 shown in FIG. In this example, the holding portion 13a (including the second cleaning portions 12a1 and 12a2) has a length of about 27 mm so that the thumb F1 thicker than the index finger F2 can be inserted. This length is based on an average value of the width and thickness of the thumbs of women in their 30s based on human body measurement data.

  Finally, the warp yarns are integrated, and the weft yarns are interlaced with the integrated warp yarns to form a single belt-like woven fabric such as a weave weave. This portion becomes the joint 15a shown in FIG. This joint part 15a functions as the cutting part 14 shown in FIG. 2 similarly to the joint part 15b. Further, the length of the joint portion 15a (cut portion 14) is set to about 10 mm, similarly to the joint portion 15b. By forming the joint portion 15a, the above-described holding portion 13a for the thumb F1 is formed in an annular shape by closing both ends of the end portion on the first cleaning portion 11 side and the end portion on the joint portion 15a side. Note that the fabric structure shown in FIG. 3 is merely an example, and the fabric structure of the belt-shaped fabric according to the present embodiment is not limited to this.

  In addition, the manufacturing method of the interdental cleaning tool 1 is not limited to the above-mentioned method, The interwoven cleaning tool which concerns on this embodiment of this structure which cuts the textile fabric woven according to the textile structure of FIG. 1 may be obtained. In addition, the end of the belt-like woven fabric or thread that becomes the first cleaning unit 11 and the end of the belt-like woven fabric or yarn that becomes the second cleaning unit 12 are fused or bonded to each other according to this embodiment of the above structure. The interim cleaning tool 1 may be obtained. Furthermore, the interdental structure according to the present embodiment of the above-described structure in which the end portion of the yarn that becomes the first cleaning portion 11 and the end portion of the yarn that becomes the second cleaning portion 12 are fused using the partially fused yarn. The cleaning tool 1 may be obtained.

  Next, the effect | action of the interdental cleaning tool 1 of this embodiment is demonstrated.

  FIG. 4 is a diagram illustrating a state when the first cleaning unit 11 of the interdental cleaning tool 1 of the present embodiment is inserted between the teeth, and FIG. 5 illustrates the first cleaning unit 11 inserted between the teeth. It is a figure for demonstrating the cleaning effect | action of the 2nd cleaning part.

  Reference numerals a to e shown in FIG. 4 and FIG. 5 indicate the tooth surface area. Specifically, the symbol a indicates the buccal surface of the tooth, a ′ indicates the lingual surface of the tooth, b indicates the gap between the teeth and gums, and c indicates the teeth and teeth. Indicate the interval (adjacent surface), d indicate the interval between the teeth and the gums, e indicate the curved surface area existing from the tooth-to-dental (adjacent surface) c to the cheek-side surface a of the teeth , E ′ indicate a curved surface area existing from the tooth-to-tooth space (adjacent surface) c to the surface a ′ on the lingual side of the tooth.

  As shown in FIG. 4, during use, the interdental cleaning tool 1 reciprocates between the cheek side and the lingual side (represented by arrows X and X ′ in the drawing) or the gum and tooth meshing surfaces. Is moved along the vertical direction (indicated by arrows Y and Y ′ in the figure). When the interdental cleaning tool 1 moves along the arrows X and X ′ or Y and Y ′, the first cleaning unit 11 reciprocates back and forth or up and down between the tooth surfaces c. As the first cleaning unit 11 moves back and forth, the second cleaning unit 12 also moves back and forth or up and down.

  When the interdental cleaning tool 1 is moved up and down (arrow Y and Y ′ directions: see FIG. 4 for details), the second cleaning unit 12 expands from the end of the first cleaning unit 11 as shown in FIG. 5A. Since the branching is possible, the second cleaning units 12b1 and 12b2 move up and down while contacting the curved surface of the tooth curved surface e as the first cleaning unit 11 moves up and down.

  By this up and down reciprocating motion, the first cleaning unit 11 scratches the plaque adhering to the interproximal (adjacent surface) c, food traps, etc., and the second cleaning unit 12 has the curved surfaces e and e of the teeth. Scrub off the plaque adhering to the surface of ′. As shown in FIG. 5A, when the interdental cleaning tool 1 is moved up and down with the second cleaning portions 12b1 and 12b2 in contact with the curved surfaces e and e 'of the teeth, the surfaces of the curved surfaces e and e' of the teeth Can be cleaned efficiently.

  On the other hand, when the interdental cleaning tool 1 is moved back and forth (in the directions of arrows X and X ′: see FIG. 4 for details), the second cleaning unit 12 moves from the end of the first cleaning unit 11 as shown in FIG. 5B. Since the other end 11b (branch point) of the first cleaning unit 11 enters or leaves the inter-tooth c as it moves forward and backward, the second cleaning units 12b1 and 12b2 are also teeth. And back and forth while contacting the curved surface e.

  By this back-and-forth reciprocating motion, the first cleaning unit 11 scrapes off plaque adhering to the interdental (adjacent surface) c, food traps, and the like, and the second cleaning unit 12 generates curved surfaces e and e of the teeth. Scrub off the plaque adhering to the surface of ′. As shown in FIG. 5B, when the interdental cleaning tool 1 is moved back and forth while the other end 11b (branch point) of the first cleaning unit 11 enters or leaves between the teeth, the tooth curved surfaces e and e ' The surface can be efficiently cleaned.

  The second cleaning parts 12a1 and 12a2 provided on the other end also have the same effect as the second cleaning parts 12b1 and 12b2, and reciprocate up and down or back and forth while contacting the curved surface e ′ of the teeth.

  Moreover, since the 2nd cleaning part 12 is connected with the 1st cleaning part 11 with a predetermined | prescribed joining angle, just inserting the 1st cleaning part 11 between teeth and moving it back and forth or up and down, the 2nd cleaning part 12 makes a tooth | gear. The plaque adhering to the curved surface can be scraped off. For this reason, it is not necessary to bend the thread and make it closely contact with the teeth as in the case of using a thread-like interdental cleaning tool. By the way, during interdental cleaning, it is necessary to open the mouth wide in order to bend the linearly stretched thread and bring it into contact with the curved surface of the tooth. There is a problem that it takes a lot of power. On the other hand, the interdental cleaning tool 1 of the present embodiment can efficiently remove plaque adhering to the curved surface of a tooth that is difficult to clean only by moving the interdental cleaning tool 1 along the teeth. .

  In addition, since the contact area between the first cleaning unit 11 and the second cleaning unit 12 and the tooth surface is increased by forming the first cleaning unit 11 and the second cleaning unit 12 in a band shape, plaque and food can be easily used. It is possible to efficiently remove dirt such as cocoons.

  Thus, according to the interdental cleaning tool 1 of the present embodiment, the interdental c and the curved surfaces e and e ′ of the teeth can be simultaneously cleaned by one operation using one tool.

  By the way, in order to keep the oral cavity clean, daily self-care is important. Plaque that becomes dirt in the oral cavity is a lump of bacteria. If these are lurking in the oral cavity, they grow over time, causing tooth decay, periodontal disease, and bad breath. For this reason, in daily self-care, it is desirable that all of the above-described tooth surface areas a to e be sufficiently cleaned. In daily self-care, a toothbrush, an interdental brush with a small head, a thread-like dental floss, and the like are usually used. The toothbrush can efficiently remove plaque adhering to the tooth surfaces a and a ′, and the interdental brush can remove plaque between the teeth and gums and between the teeth and gums d. It can be removed efficiently, and general dental floss can efficiently remove plaque and the like between teeth (adjacent surface) c.

  However, with these toothbrushes, interdental brushes, and dental floss, dental plaque in a curved surface area that exists from the interdental (adjacent surface) c of the tooth to the cheek-side surface a of the tooth or the surface a ′ of the lingual side of the tooth, etc. It is not easy to remove. This is because the toothbrush and the interdental brush have a narrow tip, so that the area in contact with the curved surface area is small, and plaque and the like attached to the curved surface cannot be completely removed. In addition, since the linear dental floss only moves linearly along the tooth-to-tooth space (adjacent surface) c, it is difficult to touch the curved surface e between the teeth, and scrapes the plaque adhering to the curved surface. Is difficult.

  On the other hand, the interdental cleaning tool 1 of the present embodiment has a first cleaning section because the second cleaning section 12 that expands from the end of the first cleaning section 11 inserted between the teeth follows the curved surface of the teeth. Since the second cleaning unit 12 reciprocates while contacting the tooth curved surfaces e and e ′ simultaneously with the reciprocating movement 11 while contacting the interdental c, the interdental movement is performed by one operation using one tool. c and the curved surfaces e and e 'of the teeth can be cleaned simultaneously. As a result, plaque in the oral cavity can be efficiently removed.

  Hereinafter, the evaluation result of the friction characteristic and the interdental resistance characteristic of the interdental cleaning tool 1 of this embodiment is demonstrated.

<Example 1>
In Example 1, the friction characteristics of the interdental cleaning tool of this embodiment were evaluated. The friction characteristic is a characteristic that affects the cleaning efficiency and operability, and is evaluated by the magnitude of the friction force measured under a predetermined condition. If the frictional force is too low, it is difficult to remove dirt such as plaque, while if the frictional force is too high, the interdental cleaning tool does not move smoothly and the operability tends to deteriorate.

  First, the interdental cleaning tool of Example 1 was prepared. Using a two-needle needle loom, both warp and weft silk (2.3 tex X2, bottom twist Z1100 / m, top twist S900 / m twisted yarns) warp 106.7 / cm, weft 76. Weaving was performed at a yarn density of 0 / cm according to the fabric structure shown in FIG. 3 to obtain an interdental cleaning tool having a width of 3 mm in Example 1. In Example 1, one weft of the fabric structure shown in FIG. 3 was expressed by two wefts.

  On the other hand, the interdental cleaning tool already marketed was prepared as Comparative Examples 1-3. Comparative Example 1 is an interdental cleaning tool made of polyester, Comparative Example 2 is an interdental cleaning tool made of nylon, and Comparative Example 3 is an interdental cleaning tool made of PTFE (polytetrafluoroethylene).

  Subsequently, the friction characteristics of Example 1 and Comparative Examples 1 to 3 were evaluated by the following method.

  Two artificial teeth having a predetermined shape were opposed to each other, and each artificial tooth was pressed against each other by applying a predetermined pressure. One end of the interdental cleaning tool was sandwiched between the artificial teeth, and one end of the interdental cleaning tool was pulled at a predetermined speed. The frictional force (N) applied to the interdental cleaning tool passing between the artificial teeth at this time was measured. This artificial tooth is formed by fitting a dental alloy screw (corresponding to a tooth root part) into a substantially cube (corresponding to a crown part) made of dental ceramics of 10 mm × 10 mm × 10 mm. It was.

  The frictional force (N) with respect to the moving distance of the interdental cleaning tool of Example 1 and Comparative Examples 1 to 3 is shown in FIG.

  As shown in FIG. 6, the friction characteristics of Example 1 are within the range of the friction characteristics shown in Comparative Examples 1 to 3, which are commercially available products, and have appropriate friction characteristics acceptable to general consumers. I understood.

<Example 2>
In Example 2, the interdental resistance characteristic of the interdental cleaning tool of this embodiment was evaluated. Interdental resistance is a characteristic that affects the load and operability of the teeth, and depends on the rate of change in the magnitude of the resistance measured under a given condition (the amount of change in the resistance against the unit insertion amount). evaluated. Incidentally, this resistance force corresponds to the force received from the tooth side when the interdental cleaning tool is inserted between the teeth.

  When the change speed of the resistance force is small, the change in the resistance force that is received when the interdental cleaning tool is inserted between the teeth is gradual, and thus there is a tendency that the user feels easy to operate. On the other hand, when the change speed of the resistance force is large, the change in the resistance force that is received when the interdental cleaning tool is inserted between the teeth is abrupt, and the user tends to feel that the operation is difficult. Moreover, if the change speed of the resistance force is large, a large force may be unexpectedly applied to the teeth, gums, lips and the like.

  In order to evaluate the interdental resistance characteristics, the same interdental cleaning tool as Example 1 described above was prepared as Example 2. Moreover, the interdental cleaning tool already marketed was prepared as Comparative Examples 4 and 5. Comparative Example 4 is an interdental cleaning tool made of nylon, and Comparative Example 5 is an interdental cleaning tool made of polyester.

  Subsequently, the interdental resistance characteristics of Examples and Comparative Examples 4 to 5 were measured by the following method.

  Two artificial teeth having a predetermined shape were opposed to each other, and a predetermined pressure was applied to press the artificial teeth against each other. The interdental cleaning tool set above was gradually approached to the artificial tooth at a predetermined speed, and the cleaning part of the interdental cleaning tool was inserted between the artificial teeth (interdental). The insertion distance of the interdental cleaning tool at this time and the pressure (N) applied to the interdental cleaning tool were measured. The artificial teeth used were those used in the evaluation of the friction characteristics of Example 1.

  FIG. 7 shows changes in the resistance force with respect to the insertion distance of the interdental cleaning tool of Example 2 and Comparative Examples 4 to 5. In FIG. 7, the timing at which the resistance (N) starts to rise is the timing at which the interdental cleaning tool contacts the artificial tooth.

  As shown in FIG. 7, the interdental resistance characteristic of Example 2 is more gradual than that of Comparative Examples 4 to 5 which are commercially available products, and the increase in interdental resistance is moderate and accepted by general consumers. It was found that it has moderate interdental resistance characteristics.

Second Embodiment
FIG. 8 is a perspective view of the interdental cleaning tool 1 according to the second embodiment. The interdental cleaning tool 1 of the present embodiment has the same operations and effects as the interdental cleaning tool 1 of the first embodiment described above.
As shown in FIG. 8, the interdental cleaning tool 1 of the present embodiment further includes a holder 21 that supports the end of the second cleaning unit 12. The user can clean the space between the teeth by holding the holder 21 with his / her hand without putting his / her finger into the mouth.

  The holder 21 includes locking portions 21a to 21d. The holder 21 is not integrated with the cleaning portion in advance, and the end of the second cleaning portion 12 of the interdental cleaning tool 1 is engaged with the locking portions 21a to 21d during use. You may make it stop. Thereby, the holder 21 can be used repeatedly and resources can be reused. The material of the holder is not particularly limited, and any material such as resins and woods can be used.

<Third Embodiment>
FIG. 9 is a perspective view of the interdental cleaning tool 1 according to the third embodiment. The interdental cleaning tool 1 of the present embodiment has the same operations and effects as the interdental cleaning tool 1 of the first embodiment described above.
As shown in FIG. 9, in this embodiment, the holder 22 which accommodates the interdental cleaning tool group 10 (refer FIG. 1) with which the several interdental cleaning tool 1 continues is further provided. The holder 22 includes a winding core 22 a around which a plurality of first cleaning parts 11 and second cleaning parts 12 that are continuous via a cutting allowance 14 are wound, and a blade 22 b for cutting the cutting allowance 14. . The user pulls out one unit including the first cleaning unit 11, the second cleaning unit 12, and the holding unit 13 from the winding core 22a of the holder 22 during use, and cuts the cutting allowance 14 with the blade 22b. One interdental cleaning tool 1 to be used can be obtained. In this embodiment, since the interdental cleaning tool group 10 can be wound around the holder 22 and stored, the band-like interdental cleaning tool group 10 does not get entangled and is excellent in operability.

  In the present embodiment, the interdental cleaning tool 1 cut by the cutting portion 14 includes an annular holding portion 13. The user can support the interdental cleaning tool 1 by inserting a thumb and an index finger into a pair of holding parts 13 formed at both ends of the first cleaning part 11. For this reason, since the space between teeth can be cleaned without using a holder as in the second embodiment, it is possible to contribute to resource saving.

  The embodiment described above is described for facilitating the understanding of the present invention, and is not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1,10 ... Interdental cleaning tool 11 ... 1st cleaning part 12a1, 12a2, 12b1, 12b2 ... 2nd cleaning part 13a, 13b ... Holding part 14 ... Cutting part 15a, 15b ... Joining part 21 ... Holder 1
22 ... Holder 2

Claims (5)

An interdental cleaning tool that removes dirt adhering to the tooth surface,
A first cleaning part inserted between the teeth;
A pair of second cleaning parts that can be expanded from an end of the first cleaning part, and a pair of second cleaning parts formed at both ends of the first cleaning part ,
The first cleaning unit and the second cleaning unit are belt-shaped fabrics,
The second cleaning unit connected to the first cleaning unit is divided into two parts, a joint portion composed of a single woven fabric structure in which wefts are mixed with warps set to a predetermined width, and the set warps are divided into two. It is constituted by a double woven fabric structure in which wefts are interlaced with each warp group, and has an annular holding part into which an end of a finger or a holder can be inserted,
The interdental cleaning is characterized in that the first cleaning unit connected to the second cleaning unit is composed of a single woven fabric structure in which the divided warp groups are integrated and the wefts are interlaced with the integrated warps. Ingredients. Further comprising a cutting part connected to the holding part,
Interdental cleaner according to claim 1 that have a plurality of the first cleaning portion and the second cleaning portion continuous through said cutting portion. The interdental cleaning tool according to claim 2 , further comprising a holder around which the plurality of first cleaning units and the second cleaning unit that are continuous through the cutting unit are wound. The interdental cleaning tool according to claim 1, further comprising a holder that supports an end of the second cleaning unit. The interdental cleaning tool according to any one of claims 1 to 4 , wherein the first cleaning unit and the second cleaning unit are made of silk.

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