Methods for securing dental floss and floss holders

Abstract

To solve the problems of a dedicated roll-type holding tool where floss packaged in a plurality of types of commercially available cases cannot be used, leading to a problem from a viewpoint of environmental destruction by resin waste and a nunchaku-type holding tool where operational complexity exists as a daily used tool and utilization is difficult.SOLUTION: Using a floss holding tool 2 comprising a post 40 having a groove part 40f where one end or a vicinity of the one end is opened, a guide shaft 30 fixing the other end and a gripping part 10 for holding the guide shaft 30, a hollow cylinder 20 that is loosely fitted to the guide shaft 30 and slides with respect to the guide shaft 30 while maintaining a predetermined gap with a body outer peripheral surface 40h of the post 40, and a spring 50 for biasing the cylinder 20 along the axis of the guide shaft 30 towards the gripping part 10, floss 3 is to be collapsed between a body outer peripheral surface 40h and an internal wall surface 20g of the hollow cylinder 20.SELECTED DRAWING: Figure 3

Description

【Technical Field】 【0001】 The present invention relates to a fixing method for fixing dental floss for interdental cleaning and a floss holder therefor. 【Background Art】 【0002】 There are many types of interdental brushes and dental flosses aimed at removing dental plaque that cannot be completely removed by brushing with a toothbrush. In particular, dental floss can be used even by young people with a narrow interdental distance, and many dentists also recommend its use. 【0003】 Dental floss (hereinafter referred to as floss) is composed of twisting a plurality of filaments of synthetic fibers such as silk yarn, nylon resin, polyester resin, and polyethylene resin, and is a tool for scraping out dental plaque by passing it between teeth. As a form of generally sold products, there are two types: a form in which the floss is attached in an arcuate shape to a resin holder (hereinafter referred to as the holder type), and a form in which about 30 to 50 m of floss for one roll is cut out about 30 to 40 cm and wound around a finger or the like for use (hereinafter referred to as the roll type). 【0004】 In the case of the holder type, it can be used as it is by taking it out of the package, and has the advantage of being easy to use, such as being operable with one hand. However, since the floss is fixed to the holder, it has the disadvantages of being difficult to turn smoothly and having poor dental plaque removal efficiency. In principle, the resin holder is disposable, and it should be used with caution from the perspective of environmental damage caused by resin waste. 【0005】 In contrast, with roll-type floss, the length and tension can be appropriately adjusted during use, allowing for plaque removal along the contours of the teeth. Furthermore, since there are no accessories other than the case for storing the wound floss, it can be said that this format is recommended from an environmental perspective. However, with roll-type floss, it is necessary to cut off a length considerably longer than the amount actually used, resulting in a lot of waste. Also, it requires using both hands to operate the floss, which can take time to get used to. In addition, there is a risk of fingers entering the mouth, which can be a concern for some from a hygiene standpoint. 【0006】 In recent years, devices have been proposed to assist in the use of roll-type dental floss. For example, Patent Document 1 proposes a device that serves as a case for storing rolled-up dental floss. This relates to a floss case that has a function to secure the pulled-out floss, and aims to make it easier to handle the floss by wrapping the pulled-out floss around the fingers of one hand and holding the case with the other hand while performing plaque removal. 【0007】 Furthermore, Patent Document 2 proposes a device called a "nunchaku type," consisting of two hollow rods. In this device, one of the two rods functions as a floss case, and the other is a jig for fixing the pulled-out floss. It is stated that by using this jig, even people who are hesitant to put their fingers in their mouths or who are unfamiliar with cleaning their back teeth can easily and accurately remove plaque. 【0008】 Furthermore, regarding devices referred to as "nunchaku-type," as shown in Patent Documents 3 and 4, there are proposals for devices equipped with fasteners at both ends of a certain length of floss, with each fastener fixed to the ends of two gripping rods. In this case, the device is to replace the special floss with the fasteners attached. [Prior art documents] [Patent Documents] 【0009】 [Patent Document 1] Japanese Patent Publication No. 2018-122061 [Patent Document 2] Japanese Patent Publication No. 2016-150246 [Patent Document 3] Utility Model Registration No. 3158023 Gazette [Patent Document 4] Special Publication No. 2013-537817 [Overview of the Initiative] [Problems that the invention aims to solve] 【0010】 However, the devices for assisting the use of roll-type floss proposed in Patent Documents 1 and 2 relate to devices that are extensions of floss cases, and are of the type in which the floss is pulled out from the device beforehand. This also necessitates fixing the floss in the case, and there is a problem in that it is not possible to use commercially available floss in various types of cases. 【0011】 Furthermore, even with "nunchaku-type" tools, the jigs used to hold the pulled-out floss required the task of threading the thin, soft floss through small holes and disassembling and reassembling the tool, which was composed of multiple parts. As a tool for daily use, it was cumbersome to operate and difficult to use. 【0012】 Furthermore, while the nunchaku-type devices described in Patent Documents 3 and 4 offer improved floss attachment, they require a special floss with a fixing mechanism, and, similar to the aforementioned problem, they cannot be used with commercially available floss in various cases. 【0013】 Furthermore, the nunchaku-type instruments described in Patent Documents 3 and 4 can only be used with floss of a predetermined length, which can cause problems with operability. Also, because the fasteners are fixed to both ends of the floss, it is difficult to remove the floss in an emergency if it gets caught on a tooth. In addition, since the special floss with the fasteners attached must be discarded after use, there are also problems from the perspective of environmental damage caused by plastic waste. 【0014】 This invention was proposed to solve these problems, and aims to provide a highly user-friendly method for fixing dental floss and a floss holder that allows the use of commercially available floss in various types of cases, reduces the amount of floss used, and makes it easy to attach the floss to the floss holder. [Means for solving the problem] 【0015】 To achieve the above objective, means 1 comprises a post having a groove that is open at one end or near that end, and a guide shaft that fixes the other end of the post. and , A sloped section is formed on the tip side. A gripping part that holds the guide shaft, A sloped portion is formed on the rear end side. Guide axis of It comprises a hollow cylinder that is loosely fitted and slides relative to the guide shaft while maintaining a predetermined gap with the outer circumferential surface of the post body, The device has a first holding position in which the slanted surface at the tip of the gripping part and the slanted surface at the rear end of the cylinder engage with each other, and a second holding position in which the cylinder rotates around the guide axis and the tip of the gripping part and the rear end of the cylinder engage with each other. The dental floss is compressed and secured in the gap between the outer surface of the post body and the inner wall surface or end of the cylinder. thing, It is possible We can provide a floss holder. 【0016】 According to means 1 of the present invention, when attaching floss, one end of the post or the vicinity of that end is On the outer perimeter It has an open groove, and the floss can be inserted through the groove at the open end, eliminating the need for the cumbersome process of threading thin, flexible floss through a small hole, making it easy to attach. Furthermore, the floss is secured to the outer surface of the post body and the inner wall surface of the hollow cylinder. or its endThe gap with respect to the guide shaft is set in advance to a predetermined gap, and the hollow cylinder can be moved in the axial direction or around the axis with respect to the guide shaft to crush and fix the floss, so that an optimal holding force can be generated, and there is an advantage that a very simple and easy-to-handle floss holder can be provided. 【0017】 In addition, it is only necessary to cut out and use the floss contained in a commercially available case that exists in a plurality of inexpensive types, and since the floss can be fixed near the end of the floss even when fixing the floss to the floss holder, the amount used can be significantly reduced by cutting out and using only the length of the floss actually required for removing dental plaque, and there is also an advantage that it is very economical without generating waste waste. 【0018】 Furthermore, when the floss is caught on the teeth, it is not necessary to disassemble the floss holder, and since the floss can be easily removed by simply moving the hollow cylinder in the axial direction or in the reverse direction around the axis with respect to the guide shaft, there is an advantage that an emergency removal can be easily performed by removing the floss from the floss holder from between the teeth. 【0019】 (Other means for solving the problem) The means 2, which is a subordinate concept of the above-mentioned means 1, is the circumference of the guide shaft portion A guide pin provided on the cylinder and a spiral groove hole portion provided on the cylinder and, are Rotatable and slidable engaged, a first holding position engaged at one end, and engaged at the other end after rotating the cylinder around the guide shaft The second holding position is provided. This offers advantages such as obtaining the same amount of movement as the amount of advancement due to the rotation of the helical groove, and providing greater flexibility in setting. 【0020】 According to the means 2 of the present invention, the crushing of the floss is forced to move from the first holding position to the second holding position to crush the floss In other words, by simply rotating the cylinder, the guide pin engages with the spiral groove, allowing for smooth movement, which is useful for fixing dental floss to a holder and for other purposes. The removal operation is also only to rotate the cylinder, and there is an advantage that the operation can be performed very easily. 【0021】 The means 3, which is a subordinate concept of the present invention, is the method of fixing the floss of the means 1 with the cylinder with respect to the guide shaft Using the biasing force of the springNot only was the dental floss compressed and secured in the gap between the outer surface of the post body and the inner wall surface of the cylinder by moving it axially, but in addition, the floss was also compressed and secured between the flange portion of the post and the end of the cylinder. 【0022】 According to means 3 of the present invention, the outer circumferential surface of the post body and the inner wall surface of the hollow cylinder or its end In addition to being compressed in the gap, the fluting is further compressed and secured between the flange portion of the post and the end of the cylinder, resulting in different compression directions and an improved holding force. 【0023】 Means 4 of the sub-concept of the present invention is a method of fixing the floss in means 1 in which the cylinder is rotated around the axis with respect to the guide shaft, and the floss is wrapped around the outer surface of the body of the post and fixed by being compressed and sandwiched between the outer surface of the body of the post and the inner wall surface of the cylinder. 【0024】 According to method 4 of the present invention, the amount of compression required to fix the floss can be adjusted by changing the amount of winding (winding rotation angle), and a stable holding force can always be maintained even when using floss of different thicknesses (or widths). This has the advantage of allowing stable use of commercially available floss of different thicknesses (or widths) that come in various types of cases. [Effects of the Invention] 【0025】 In summary, the present invention provides a highly user-friendly method for fixing dental floss and a floss holder that allows the use of commercially available floss in various types of cases, reduces the amount of floss used, and makes it easy to attach the floss to the floss holder. [Brief explanation of the drawing] 【0026】 [Figure 1] This is a dental floss holder set according to an embodiment of the present invention. [Figure 2](a) a top view and (b) a front view of a floss holder in a first embodiment of the present invention. [Figure 3] Figure 2 is an exploded perspective view of the floss holder. [Figure 4] This is a perspective view taken along the arrow AA in Figure 2. [Figure 5] Figure 2 is a perspective view taken along the arrow in the BB section. [Figure 6] (a) A perspective view showing the floss holder in the open state, and (b) A perspective view showing the floss holder in the closed state, in the first embodiment of the present invention. [Figure 7] This is a perspective view detail showing a shifted engagement state in the engagement portion between the gripping portion and the cylinder in the first embodiment of the present invention, in order to explain the engagement state. [Figure 8] (a) A perspective view showing the open state when the floss is attached, and (b) A perspective view showing the closed state with the floss attached, according to the first embodiment of the present invention. [Figure 9] This is a detailed perspective cross-sectional view of Figure 8(b). [Figure 10] This is a partial enlargement view of Figure 9. [Figure 11] This is a schematic diagram showing examples of other ways to apply dental floss. [Figure 12] This is a perspective view showing a modified example of the first embodiment of the present invention when the floss is attached. [Figure 13] This is a detailed perspective view showing the engagement between the gripping portion and the cylinder in a modified example of the first embodiment of the present invention. [Figure 14] (a) A perspective view showing the floss holder in the open state, and (b) A perspective view showing the floss holder in the closed state and some details, in a second embodiment of the present invention. [Figure 15] This is an exploded perspective view of the main part of a floss holder in a third embodiment of the present invention. [Figure 16] (a) A perspective view showing the open state when the floss is attached, and (b) A perspective view showing the closed state with the floss attached, in a third embodiment of the present invention. [Figure 17] This is a perspective view of the main part of a fourth embodiment of the present invention. [Figure 18] Figure 15 is an exploded perspective view showing another example of engagement at the engagement point between the cylinder and the gripping part. [Modes for carrying out the invention] 【0027】 Hereafter, embodiments for carrying out the present invention will be described in detail with reference to the figures. First, Figure 1 shows a floss holder set 1 in which two floss holders 2, each representing an embodiment of the present invention, are used, with floss 3 placed between the floss holders 2. In this case, the floss 3 is a commercially available floss in a case of various types, which is cut to the required length, slightly longer than the actual portion used. 【0028】 The configuration of the first embodiment of the floss holder 2 of the present invention will be described based on Figures 2 to 5, and its operation based on Figures 6 to 7. 【0029】 As shown in Figures 2 and 3, the floss holder 2 is constructed by pressing the guide portion 30a of the guide shaft 30 into the hole wall portion 10d of the grip portion 10, which is the part held in the palm when used for plaque removal, thereby forming the gripping rod 5. The guide shaft 30 is a stepped cylindrical shaft formed by the guide portion 30a and the spring guide portion 30b, and is covered by a hollow cylinder 20 having a projection portion 20c inside. 【0030】 Furthermore, the end of the gripping portion 10 into which the guide portion 30a is press-fitted is cut diagonally, as shown in Figure 2, and the slope is composed of a bottom portion 10a, a slope portion 10b, and a slope tip portion 10c (see Figure 7). 【0031】 As described above, the cylinder 20 is a hollow cylinder having a projection 20c near the center extending from the inner wall surface 20g toward the axis. One of the inner wall surfaces 20g is loosely fitted with the guide portion 30a of the guide shaft 30 relative to the projection 20c, and is held to rotate and slide in the axial direction. Similarly, the inner wall 20f of the projection 20c is loosely fitted with the spring guide portion 30b of the guide shaft 30, and is held to rotate and slide in the axial direction. 【0032】 Furthermore, as shown in Figures 2 and 3, one end of the cylinder 20 is cut diagonally opposite the inclined surface 10b of the gripping portion 10, so that the inclined surface 20b abuts against the inclined surface 10b. In addition, a portion of the tip of the inclined surface 20b is cut off to form a concave locking portion 20a. 【0033】 Furthermore, as shown in Figures 4 and 5, a spring 50 is inserted between the spring guide portion 30b of the guide shaft 30 and the inner wall surface 20g of the cylinder 20 relative to the projection 20c. A post 40, which will be described separately, is press-fitted and fixed to the tip of the spring guide portion 30b until its end portion 30c abuts against the bottom of the hole 40c. The ends 50a and 50b of the spring contact the end portion 40b of the post 40 and the projection seating surface 20d of the cylinder 20, respectively, and the compression reaction force of the spring 50 presses the inclined surface 20b of the cylinder 20 against the inclined surface 10b of the grip portion 10. Note that when the inclined surface 20b is pressed against the inclined surface 10b, there is a slight gap between the projection 20c and the seating surface 30d, although this is not shown, and they do not come into contact. 【0034】 As shown in Figures 3 to 5, the post 40 has a spherical tip portion 40a, and the outer wall surface 40g of the body portion is loosely fitted and slidable with the inner wall surface 20g of the cylinder 20. In addition, a part of the body portion has an opening 40e formed from the circumferential direction, and a narrow groove portion 40f is formed near the axis center, connected to the opening 40e. The gap in this groove portion 40f is slightly wider than the thickness (or width) of commercially available floss. 【0035】 The post 40 has a spherical tip 40a connected to a cylindrical outer surface 40h of the body, which has a step between it and the outer wall surface 40g, forming a gap X with the inner wall surface 20g of the cylinder 20. This gap X is set to be slightly narrower than the thickness (or width) of commercially available floss. As a result, the outer surface 40h of the post 40 has an opening 40e, and a hook portion 40d is formed so that the floss 3 is locked into the groove 40f. 【0036】 Furthermore, the metal material of the floss holder 2 used in this invention is preferably SUS316L, an austenitic stainless steel commonly used in medical applications, as it is used inside the oral cavity. 【0037】 Next, the operation will be explained using Figures 6 and 7. First, when the inclined surface 20b of the cylinder 20 is pressed against the inclined surface 10b of the gripping part 10 by the spring 50, the end 20e of the cylinder is lowered downwards, as shown in Figure 6(a), and the opening 40e of the post 40 is open. 【0038】 From this state, when the cylinder 20 is rotated in the direction of arrow T in Figure 6, the inclined surface 20b of the cylinder 20 is pushed up by the inclined tip 10c of the gripping surface 10, and the inner wall surface 20g of the cylinder 20 moves along the guide portion 30a of the guide shaft 30 in the direction of arrow Z in Figure 6(a). At this time, the spring 50 is compressed between the projection seat surface 20d and the end portion 40b as shown in Figure 9, and the pressing force gradually increases. 【0039】 When the cylinder 20 rotates 180 degrees from the position shown in Figure 6(a) to the state shown in Figure 6(b), the inclined tip 10c engages with the concave locking portion 20a of the cylinder 20. As shown in Figure 7, which represents the engaged state with the engagement position separated, the inclined tip 10c is in contact with the locking portion 20a along its contour and engages without any gaps. In addition, the spring 50 is compressed between the projection seating surface 20d and the end portion 40b, increasing the pressing force, and this pressing force stably engages against the force that causes the cylinder 20 to rotate and return to its original position. In this explanation, the inclined tip 10c is described as engaging with the concave locking portion 20a of the cylinder 20, but the engagement relationship may be reversed, with the tip of the inclined portion 20b of the cylinder 20 being a convex apex, and a concave locking portion provided on the inclined tip 10c of the gripping portion 10 to engage with it. 【0040】 The procedure for attaching the floss 3 to the floss holder 2 will be explained using Figures 8 to 10. First, with the end 20e of the cylinder in Figure 8(a) lowered and the opening 40e of the post 40 open, the end of the floss 3 is inserted through the opening 40e of the post 40, and then inserted into the groove 40f. The width of the groove 40f is slightly wider than the width (or thickness) of the floss 3. 【0041】 In this state, when the cylinder 20 is rotated 180 degrees in the direction of arrow T in Figure 8(a), the inclined tip 10c of the gripping portion 10 moves in the direction of arrow Z in the figure until it engages with the locking portion 20a. At this time, the end of the floss 3 is caught in the gap X between the inner wall surface 20g of the cylinder 20 and the outer surface 40h of the cylindrical body, and is compressed and held by the crushing portions 3a and 3c. Furthermore, a force is generated at the locking portion 3b, which engages with the groove portion 40f, pressing against the wall surface of the groove portion 40f. (See Figures 8(b) to 10) 【0042】 Once the floss 3 is attached, even if a pulling force is applied to the floss 3, it will not come off because it is held in place by the compressed parts 3a, 3c and the locking part 3b in a U-shape. Furthermore, as shown in Figure 11, if the end of the floss 3 is wrapped around the back part 40j of the outer peripheral surface 40h of the post 40, a compressed part is also created between the inner wall surface 20g of the cylinder 20 and the back part 40j, further increasing the resistance to pulling it out. 【0043】 Figure 12 shows the state in which the floss 3 is attached using a modified floss holder 2 of the first embodiment of the present invention. The difference from the first embodiment is that the post 45 has a flange portion 45k that protrudes circumferentially from the outer peripheral surface 45h of the body. Furthermore, as shown in Figure 13, a distinctive feature is that the shape of the engagement portion between the grip portion 15 and the cylinder 25 is different. 【0044】 The flange portion 45k, which protrudes circumferentially from the outer circumferential surface 45h of the post 45, and the end portion 25e of the cylinder are separated by a gap Y at the position where the floss 3 is attached, and this gap is set to be narrower than the diameter (or thickness) of the floss 3. Therefore, the floss 3 near its end is sandwiched in the gap X between the inner wall surface 20g of the cylinder 20 and the cylindrical outer circumferential surface 45h of the body, and is compressed and held in place by the crushed portions 3a and 3c, as well as being sandwiched and compressed at two points in the gap Y between the flange portion 45k and the end portion 25e of the cylinder. 【0045】 As a result, four crushed sections are formed in a hat-like shape (brim shape), further improving the pull-out load and allowing the floss to be held stably. The installation of the floss 3 is the same as in Figure 8, but in order to keep the gap Y between the flange portion 45k and the end portion 25e of the cylinder constant, it cannot change in the axial direction as in the engagement between the inclined tip portion 10c and the locking portion 20a in Figure 7. 【0046】 Therefore, as shown in Figure 13, a flat tip portion 15c is formed at the tip of the grip portion 15. On the other hand, the locking portion 25a of the cylinder 25 also has a flat tip, and when the floss 3 is attached, the flat tip portion 15c and the locking portion 25a engage securely against the reaction force of the spring 50, maintaining a constant gap Y. 【0047】 A second embodiment of the present invention will be described with reference to Figure 14. As shown in Figures 14(a) and (b), the cylinder 70 has the same shape as the cylinder 20 described above, but the difference is that a helical groove portion 70m is provided on a part of its outer circumference, and groove flat portions 70n parallel to the rotational direction around the axis are formed at both ends thereof. 【0048】 On the other hand, a cylindrical guide pin 35 is fixed to the guide portion 30a of the guide shaft 30, which is fixed to the grip portion 60, so as to slide loosely in the spiral groove portion 70m, extending circumferentially from the axis of the guide portion 30a. 【0049】 Let's explain the operation. As shown in Figure 14(a), when the guide pin 35 is engaged with the groove flat portion 70n near one end of the groove hole portion 70m, the flange portion 45k of the post 45 and the end portion 70e of the cylinder 70 are far apart, and the opening 45e of the post 45 and the groove portion 45f are open, making it possible to attach the floss 3 to the groove portion 45f through the opening 45e. 【0050】 When the cylinder 70 rotates relative to the gripping portion 60 in the direction of arrow T in Figure 14(a), the cylinder 70 moves in the direction of arrow Z in the figure, with the spiral groove portion 70m rotating along the guide pin 35 against the pressure of a spring 50 (not shown). As a result, the guide pin 35 engages firmly with the cylinder 70 by spring elastic force at the groove flat portion 70n near the other end of the groove portion 70m, as shown in Figure 14(b). In this state, the flange portion 45k of the post 45 and the end portion 70e of the cylinder 70 are in close proximity, the opening 45e and the groove portion 45f are hidden, and the floss 3 can be crushed in the gap X between the outer circumferential surface 45h of the body and the inner wall surface 20g of the cylinder 20, and in the gap Y between the flange portion 45k and the end portion 70e. (See Figure 14(b)) 【0051】 According to the configuration and method of the second embodiment of the present invention, the distance traveled by the cylinder 70 in the direction of arrow Z can be matched to the amount of movement accompanying the rotation of the helical groove 70m. For example, it is possible to set the cylinder 70 to travel the same distance whether it is rotated 1 / 4 of a turn or 1 full turn, which has the additional advantage of increasing the degree of freedom in setting. 【0052】 A third embodiment of the present invention will be described with reference to Figures 15 and 16. One end of the cylinder 90 has a shape in which a cylindrical portion is cut out from the end 90e, and a step is provided on both sides between the end 90e and the end face portion 90q, consisting of a flat portion 90n and a wall portion 90p, forming a two-stage cutout structure. In addition, end face wall portions 90k are provided on both sides of the cylinder in the axial direction from the end 90e. 【0053】 On the other hand, the other end of the cylinder 90 has four concave engaging recesses 90s formed from the end face portion 90r, and these engage with projections 80s that are provided on the end face portion 80r of the grip portion 80 and have inclinations on both sides, facing the engaging recesses 90s. In Figure 15, the engagement is explained in the form of four points in the circumferential direction, but any number of points of engagement is acceptable. The engagement force is applied by a spring 50 (not shown). Note that the outer wall surface 45g of the post is on the cylinder 90. It engages with the inner wall surface 90g and is rotatable. As a result, as described above, a gap X is formed between the outer circumferential surface 45h of the post body and the inner wall surface 90g. (See Figure 16) 【0054】 Figure 16 illustrates the method of attaching and fixing the floss 3. First, the end portion 3e of the floss 3 is positioned in the groove portion 45f through the opening 45e of the post 45. At this time, the floss 3 can be positioned in accordance with the flat portion 90n of the step. This step also has the effect of preventing the floss 3 from returning to the opening 45e during attachment. Note that if the width of the groove portion 45f is made slightly narrower than the width (or thickness) of the floss 3, the frictional holding force will prevent it from returning, so the step composed of the flat portion 90n and the wall portion 90p is not necessarily required. 【0055】 From this state, the cylinder 90 is rotated relative to the post 45 in the direction of arrow W in Figure 16(a). As a result, the end face wall portion 90k, shown by the dashed line in Figure 16(a), rotates to wrap around the end 3e of the floss 3, pressing the floss 3 against the hook portion 45d. At this time, the gap X is slightly narrower than the width (or thickness) of the floss, and the inner wall surface 90g of the cylinder 90 compresses the floss as it wraps the floss 3 around the hook portion 45d. 【0056】 Figure 16(b) shows the state in which the floss 3 is compressed and attached, and is compressed and attached by the compressed sections 3f and 3g. Note that although it is rotated in the direction of arrow W in Figure 16(a), it may also be rotated in the opposite direction to arrow W to be attached. In this case, the end face wall section 90k, shown by the solid line in Figure 16(a), wraps the floss 3 around the hook section 45d. 【0057】 When the thickness (or diameter) of the floss 3 differs, for example, if the thickness (or diameter) is greater, the amount of compression relative to the gap X is greater, so the amount of wrapping (wrapping angle) is reduced. If the thickness is less, the amount of compression relative to the gap X is smaller, so the amount of wrapping (wrapping angle) is increased. By controlling the amount of compression, it is possible to maintain a stable holding force at all times. 【0058】 Furthermore, in the third embodiment of the present invention, when an external force is applied to the end face wall portion 90k in the direction of unwinding the floss 3 (direction of arrow M in Figure 16(b)), the engagement between the projection 80s of the gripping portion and the engagement recess 90s of the cylinder may easily disengage. This is particularly noticeable when each projection 80s has a gently sloping shape on both sides. 【0059】 In this case, the winding rotation direction is limited to one direction. However, as shown in Figure 18, the gripping portion 81 is provided with a projection 81s, which has a saw-shaped blade composed of a slope 81u and a vertical wall 81t. Similarly, the projection 91s of the opposing cylinder 91 also has a saw-shaped blade composed of a slope 91u and a vertical wall 91t. By engaging them with each other using so-called ratchet teeth, even when an external force is applied in the unwinding direction (direction S of the arrow in the figure), the vertical walls 81t and 91t engage firmly, ensuring stable and reliable engagement. To release the engagement, it is necessary to move the cylinder 91 in the axial direction of the guide shaft 30 until the engagement of each projection of the engaging portion is disengaged. 【0060】 A fourth embodiment of the present invention will be described with reference to Figure 17. Unlike the first to third embodiments described above, the post 46 has a hemispherical tip portion 46a with a slotted groove portion 46f that extends to the groove bottom portion 46m. In addition, the end portion 95e of the cylindrical cylinder 95 has a groove portion 95f that penetrates circumferentially so as to face the groove portion 46f. 【0061】 As described above, a gap X is provided between the outer circumferential surface of the body of post 46 (not shown) and the inner wall surface of cylinder 95. When the slit-shaped groove 46f of post 46 and the groove 95f of cylinder 95 are aligned in Figure 17, and the floss 3 is inserted from the direction of arrow V in the figure and positioned near the bottom of the groove 46m, the cylinder 95 is rotated relative to post 46 in the direction of arrow W in the figure, the floss 3 bends due to the groove end faces 95k on both sides of cylinder 95 and is sandwiched in the gap X as it wraps around the outer circumferential surface of the body in opposite directions. 【0062】 In this case as well, the amount of wrapping (wrapping angle) can be adjusted by the difference in thickness (or width) of the floss 3 to obtain holding force. Also, as described above, the engagement between the projection 80s of the gripping part (not shown) and the engagement recess 95s of the cylinder is achieved by ratchet teeth, so that the engagement can be stably and reliably performed even when an external force is applied in the unwinding direction. 【0063】 As described in detail in Embodiments 1 to 4 above, according to the present invention, the floss can be easily and stably fixed to the floss holder by crushing and sandwiching the floss in the gap X formed between the outer circumferential surface of the post body and the inner wall surface of the cylinder that moves in the axial direction of the guide shaft or rotates around the shaft. Furthermore, since the floss can be easily attached by setting the floss end near the groove through the opening of the post, a highly convenient floss holder can be provided. 【0064】 Furthermore, when attaching the floss to the floss holder, it can be fixed near the end of the floss, eliminating the need for wasted floss that is wrapped around the fingers or held in the palm, as in conventional methods. By using two of the floss holders 2 of the present invention to form a floss holder set 1, the amount of floss used can be drastically reduced to less than half of the conventional amount, making it very economical. 【0065】 Although the embodiments have been described in detail above based on embodiments for carrying out the present invention, the embodiments are not limited thereto, and various other configurations can be taken without departing from the spirit of the present invention. [Explanation of symbols] 【0066】 1: Floss holder set 2: Floss holder 3: Floss (dental floss) 3a, 3c, 3f, 3g: Collapsed part 5: Grip bar 10, 15, 60, 80, 81: Grip part 10a, 15a: Bottom 10b, 15b: Slope section 10c: Tip of slope 20, 25, 70, 90, 91, 95: Cylinder 20a, 25a: Locking part 20b, 25b: Slope section 20c:Protrusion 20f: Inner wall of protrusion 20g, 90g: Inner wall surface 70m: Groove area 70n: Groove flat part 90k: End wall 95f:Groove 95k: Groove end surface 30: Guide axis 35: Guide pin 40, 45, 46: Post 40d, 45d: Hook part 40e, 45e: Opening 40f, 45f, 46f: Groove 40g, 45g: Exterior wall surface of the post 40h, 45h: Fuselage outer surface 45k: Flange section 50: Spring

Claims

[Claim 1] A post having a groove that is open at one end or near that end, A guide shaft to which the other end of the aforementioned post is fixed, A slanted portion is formed on the tip side, and a gripping portion is provided to hold the guide shaft, A sloped portion is formed on the rear end side, and the guide shaft is loosely fitted to it, and the outer circumferential surface of the post body is predetermined A hollow cylinder that slides relative to the guide shaft while maintaining a gap, A floss holder equipped with, When the slanted portion at the tip of the gripping part and the slanted portion at the rear end of the cylinder are engaged with each other A first holding position in which the position is fixed, and the cylinder is rotated around the guide shaft, and the gripping part A second holding position is provided in which the tip portion and the rear end portion of the cylinder engage, and in the gap between the outer peripheral surface of the body of the post and the inner wall surface or end surface of the cylinder, A floss holder that can compress and secure dental floss by pinching it in place. [Claim 2] A post having a groove that is open at one end or near that end, A guide shaft to which the other end of the aforementioned post is fixed, A gripping portion for holding the guide shaft, The guide shaft is loosely fitted, and a predetermined gap is maintained between it and the outer circumferential surface of the post body, and the guide A hollow cylinder that slides against the shaft, A floss holder equipped with, A guide pin provided on the circumferential portion of the guide shaft, and a spiral provided on the cylinder The grooved portion and the cylinder are rotatably and slidably engaged, and the first holding position is engaged at one end, and the cylinder A floss holder having a second holding position in which the other end engages after the post has rotated around the guide axis, and capable of fixing dental floss by crushing and sandwiching it in the gap between the outer circumferential surface of the body of the post and the inner wall surface or end surface of the cylinder. [Claim 3] A post having a groove that is open at one end or near that end, A guide shaft to which the other end of the aforementioned post is fixed, A gripping portion for holding the guide shaft, The guide shaft is loosely fitted and maintains a predetermined gap with the outer surface of the post body, and the guide A hollow cylinder that slides against the shaft, A floss holder equipped with, A mechanism that can bias the cylinder toward the gripping portion along the axial direction of the guide shaft. A dent is attached to the gap between the outer circumferential surface of the body of the post and the inner wall surface of the cylinder. A floss holder that compresses and clamps the dental floss to secure it in place. [Claim 4] The cylinder is moved axially with respect to the guide shaft, and the dental floss is brought forward. The outer surface of the body of the post and the inner wall surface or end surface of the cylinder are crushed and sandwiched together. A method of fixing using the floss holder according to claim 1, 2, or 3, which fixes in place. [Claim 5] The gap between the outer circumferential surface of the body of the post and the inner wall surface or end surface of the cylinder The dental floss is crushed and inserted, and further, the flange portion of the post and the s The fixing method according to claim 4, wherein the dental floss is fixed to the end of Linda by crushing and sandwiching it. [Claim 6] The cylinder is rotated around the guide shaft with respect to the guide shaft, and the dental flow The rope is wrapped around the outer circumferential surface of the body of the post and the outer circumferential surface of the body of the post The fixing method according to claim 4, wherein the cylinder is fixed by being crushed and sandwiched between the inner wall surface or end surface of the cylinder.

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