Dental floss holder capable of dual tension adjustment

Abstract

The present invention relates to a dental floss holder capable of dual tension adjustment, and to a dental floss holder for fixing dental floss that removes foreign substances located between teeth, the holder being formed such that a dental floss tension-maintaining winding part and a dual floss tension-maintaining means rotatably connected to the dental floss tension-maintaining winding part can dually adjust and maintain dental floss tension, and thus dental floss tension, which can slacken or weaken during use, can undergo dual adjustment such that wasting of dental floss can be prevented.

Description

Dual tension-adjustable floss holder

[0001] The present invention relates to a dental floss holder capable of dual tension adjustment, and more particularly, to a dental floss holder for fixing a dental floss for removing foreign substances located between teeth, wherein the dental floss tension can be dually adjusted and maintained by a winding portion for maintaining dental floss tension and a dual dental floss tension maintenance means rotatably connected to the winding portion for maintaining dental floss tension, thereby doubly adjusting the tension of the dental floss that may become loose or weak during use, thereby preventing dental floss waste.

[0002] According to the World Health Organization (WHO)'s oral health survey of each country, the average number of cavities experienced by 12-year-old children in Korea is 33, more than double the global average of 161.

[0003] The number of times Koreans brush their teeth per day is 235, which is significantly higher than the 197 times in Japan.

[0004] The reason why the incidence of gum disease is high despite frequent brushing of teeth can be attributed to low information about the use of dental floss.

[0005] Currently, in European countries and most developed countries, it is recommended to use dental floss after meals to remove food stuck between teeth.

[0006] While the use of dental floss holders and dental floss is high in some Asian countries, authorities still find that toothpicks are used more often after meals than dental floss due to a lack of awareness and communication about how to use them.

[0007] As you may know, dental floss is useful for removing food particles between teeth, and can also be useful for removing plaque if you have gum disease.

[0008] The dental floss holder is a tool that is formed in a Y shape to make the use of dental floss easier.

[0009] Typically, dental floss holders are used by fixing dental floss to the two ends of a Y shape to achieve the desired tension.

[0010] However, dental floss holders using conventional technology have the following problems.

[0011] Conventional dental floss holders simply hold the floss in place, and when the floss becomes loose due to use, it has the problem of hindering the removal of foreign substances between teeth.

[0012] Additionally, if the floss does not maintain the desired tension, the floss must be removed and a new floss must be fixed and used again, which reduces the usability of the floss.

[0013] In addition, the part of the dental floss holder where the dental floss is hung is inserted into the user's mouth for use. However, in the case of conventional technology, this part is always exposed to the outside, so it is contaminated with external contaminants, etc., and needs to be washed when reused, which is a problem that makes use inconvenient.

[0014] Additionally, conventional dental floss holders often pulled out more floss than necessary, causing the problem of floss waste.

[0015] Considering this, a dental floss holder was proposed in Korean Patent Publication No. 10-2020-0052539 (Publication date: (2020.05.15.)).

[0016] In view of this, a conventional general dental floss holder comprises a head including a pair of ribs each having a hook formed at the tip thereof for hooking dental floss, a body having a winding hole formed through the middle of the head, a locking pole formed around the winding hole, and an insertion hole formed at the bottom for attaching and detaching a dental floss container, a winding portion that is rotatably inserted and installed into the winding hole of the body, a part of the locking pole is hooked and fixed, a part of the dental floss coming out of the dental floss container is hooked and rotates together, and a cutter formed around the winding wheel and provided for removing used dental floss.

[0017] In addition, the locking pole is formed in a cantilever shape that is elastically deformable with one end thereof as the center, and a locking projection is formed at the tip thereof to protrude in the longitudinal direction of the locking pole, and a locking groove is formed in the cylindrical insertion portion of the winding wheel at a predetermined interval along a trajectory that comes into contact with the locking projection when the winding wheel rotates, so that the winding wheel is fixedly provided by inserting the locking projection into the locking groove.

[0018] And, the winding wheel is configured to include a penetrating member that penetrates the winding hole and has penetrating slits at both ends, a fixing projection formed protruding on one side to be fitted into the penetrating slit formed at one end of the penetrating member, a rotating handle including the locking groove formed around the fixing projection, a fixing member that is fitted into the penetrating slit formed at the other end of the penetrating member, and a joint that is fitted into the fixing member.

[0019] However, the conventional dental floss holder configured in this way has the disadvantage of easily losing the tension of the dental floss because the tension of the dental floss is maintained in one winding part as described above.

[0020] Accordingly, the present invention has been devised to solve the above-described problem, and is a dental floss holder that fixes a dental floss for removing foreign substances located between teeth, wherein the tension of the dental floss is doubly adjustable and maintained by a winding portion for maintaining dental floss tension and a double dental floss tension maintenance means rotatably connected to the winding portion for maintaining dental floss tension, thereby doubly adjusting the tension of the dental floss that may become loose or weak during use, thereby preventing dental floss waste. The purpose of the present invention is to provide a dental floss holder capable of dual tension adjustment.

[0021] Other objects of the present invention will become clear as the technology progresses.

[0022] In order to achieve the above-described purpose, the present invention is a double tension-adjustable dental floss holder, which comprises a hook portion (111) formed at one end with a hook groove (111a) formed at the tip so as to be spaced apart from each other so as to allow dental floss to be caught, and a dental floss container receiving portion (113) formed at the other end to rotatably receive a dental floss bobbin (A) on which dental floss is wound and covered with a cover portion (112), and a tension-adjusting hole (114) formed between the hook portion (111) and the dental floss container receiving portion (113), and an elastic tension-adjusting protrusion (115) formed at a mutually facing position on the inner circumferential surface of the tension-adjusting hole (114), and a dental floss body portion (110); A floss tension maintenance winding part (130) that is formed to be rotatably inserted into the tension adjustment hole (114) of the above-mentioned floss body part (110) so as to wind the floss taken out from the floss bobbin (A) in response to rotation, and is provided on the outer circumference thereof so as to be hooked onto the tension adjustment protrusion (115) so as to maintain the tension of the wound floss according to adjustment; a cutting member (150) that is positioned between the tension adjustment hole (114) and the floss container receiving part (114) so ​​as to be fixed to the upper surface of the above-mentioned floss body part (110) so as to be capable of cutting the used floss; It is characterized by including a double floss tension maintenance means (170) that is positioned at the lower part of the floss body (110) and is capable of maintaining the tension of the floss by doubly adjusting it and rotating it in one direction by being rotatably connected to one end of a floss tension maintenance winding part (130) that is rotatably inserted into a tension adjustment hole (114) of the floss body (110).

[0023] In addition, the above-described floss tension maintenance winding part (130) is composed of a connecting piece (131) formed with a circular cross-section so as to be rotatably inserted into the tension adjustment hole (114) of the floss body part (110) and connected at one end to the double floss tension maintenance means (170), a tension adjustment piece (132) having a diameter expanded from the upper surface of the connecting piece (132) and having tension adjustment protrusions (132a, 132b) formed radially on the outer surface to catch the tension adjustment protrusion (115), and an insertion part (133) provided with a fitting piece (137) formed on the lower surface of the tension adjustment piece (132) at a position facing each other by a cut-out space part (136) to be fitted into the double floss tension maintenance means (170), and It is characterized in that it is configured with a hooking portion (134) that is expanded from the upper surface of the insertion portion (133) and is fixedly hooked to the dental floss body portion (110) when the insertion portion (133) is inserted toward the tension adjustment hole (114), and a winding groove (135) in the shape of a line is further formed on the outer surface of the hooking portion (133) so that the dental floss drawn out from the dental floss bobbin (A) can be inserted and wound corresponding to rotation by being cut from the upper surface to a part of the insertion portion (133).

[0024] And, the above-mentioned double floss tension maintenance means (170) is formed in a circular plate shape, and a receiving hole (171a) is formed in the central portion so as to be able to receive the connecting piece (131) of the floss tension maintenance winding portion (130), and a connecting projection (171b) is formed in a protruding column shape including the receiving hole (171a) on the upper surface, and has a fitting groove (171c) formed at the tip so as to be able to fit the fitting piece (137), and a double floss tension maintenance rotating member (171) is formed around the connecting projection (171b), and a step surface (171f) for catching is formed on the inner surface of the receiving hole (171a), and the floss tension maintenance winding portion (130) is provided. A double floss tension maintaining screw groove (172) formed on the bottom surface of the connecting piece (131), and an insertion part (173a) having a screw portion formed on the outer surface so that one end penetrates the receiving hole (171a) on the bottom surface of the double floss tension maintaining rotary member (171) and is screw-connected to the double floss tension maintaining screw groove (172), and a double floss tension maintaining connecting piece (173) formed on the bottom surface of the double floss tension maintaining rotary member (171) so that the other end has a hooking part (173b) formed so that it can be hooked to the double floss tension maintaining rotary member (171), and the double floss tension maintaining connecting piece (131) formed on the bottom surface of the floss body (110) so that the double floss tension maintaining rotary member (171) is positioned on the bottom surface of the floss body (110) while inserting the connecting piece (131) of the insertion part (133) into the receiving hole (171a), thereby maintaining the double floss tension A double floss tension maintenance gear part (174) that is provided to be able to double-adjust and maintain the tension of the floss in response to the rotation of the double floss tension maintenance rotating member (171) in one direction by engaging with the rotating gear part (171b), and is inserted into the receiving hole (171a) of the double floss tension maintenance rotating member (171) so that it is caught and supported on the catch step surface (171d).The other end is characterized by being composed of a compression spring (175) for maintaining double floss tension that is provided to be caught by a catch (173b) of the connecting member (173) for maintaining double floss tension, and a cap (175) for maintaining double floss tension that is formed in a cap shape so as to prevent detachment of the connecting member (173) for maintaining double floss tension by elastically wrapping and covering the rotating member (171) for maintaining double floss tension from the bottom, while allowing the rotating member (171) for maintaining double floss tension to be easily rotated.

[0025] As described above, according to the dental floss holder capable of dual tension adjustment according to the present invention, the dental floss holder for fixing the dental floss for removing foreign substances located between teeth is configured to be doubly adjustable and maintained by a dental floss tension maintenance winding portion and a dual dental floss tension maintenance means rotatably connected to the dental floss tension maintenance winding portion, so that the tension of the dental floss that may become loose or weak during use can be doubly adjusted, thereby having the effect of preventing dental floss waste.

[0026] Figure 1 is an exploded perspective view illustrating a dental floss holder capable of dual tension adjustment according to the present invention.

[0027] Figure 2 is a bottom exploded perspective view illustrating a dental floss holder capable of dual tension adjustment according to the present invention.

[0028] Figure 3 is a cross-sectional view illustrating a double tension-adjustable dental floss holder according to the present invention.

[0029] Figure 4 is a perspective view illustrating a dental floss holder capable of dual tension adjustment according to the present invention.

[0030] Specific structural or functional descriptions of embodiments according to the concept of the present invention disclosed in this specification are merely illustrative for the purpose of explaining embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention may be implemented in various forms and are not limited to the embodiments described in this specification.

[0031] Hereinafter, a detailed description will be given of one embodiment of a dental floss holder capable of dual tension control according to the present invention.

[0032] First, it should be noted that, among the drawings, identical components or parts are indicated by identical reference numerals, wherever possible. In describing the present invention, specific descriptions of related known functions or configurations are omitted to avoid obscuring the gist of the invention.

[0033] As illustrated, the double tension-adjustable dental floss holder (100) according to the present invention comprises a hook part (111) formed at one end with a hook groove (111a) formed at the tip so as to be spaced apart from each other so as to allow dental floss to be caught, and a dental floss container receiving part (113) formed at the other end to rotatably receive a dental floss bobbin (A) on which dental floss is wound and covered with a cover part (112), and a tension-adjusting hole (114) formed between the hook part (111) and the dental floss container receiving part (113), and an elastic tension-adjusting protrusion (115) formed at an opposite position on the inner surface of the tension-adjusting hole (114), and a dental floss body part (110) provided with a tension-adjusting hole (114) of the dental floss body part (110) that is rotatably inserted into the tension-adjusting hole (114) to rotate the dental floss drawn from the dental floss bobbin (A). It is configured to include a floss tension maintenance winding part (130) which is formed to be wound correspondingly and is provided on the outer surface to be able to maintain the tension of the wound floss by being caught by the tension adjustment protrusion (115) and adjusted, a cutting member (150) which is provided to be fixed to the upper surface of the floss body (110) by being positioned between the tension adjustment hole (114) and the floss container receiving part (114) so ​​as to be able to cut the used floss, and a double floss tension maintenance means (170) which is provided to be able to maintain the tension of the floss by being positioned at the lower part of the floss body (110) by being rotatably connected to one end of the floss tension maintenance winding part (130) which is rotatably inserted into the tension adjustment hole (114) of the floss body (110) and rotated in one direction so as to be able to double adjust the tension of the floss and maintain it.

[0034]

[0035] Hereinafter, the double tension-adjustable dental floss holder according to the present invention will be described in more detail with reference to the attached drawings, FIGS. 1 to 4.

[0036] First, the floss body of the double tension-adjustable floss holder according to the present invention is configured to be used by hanging floss.

[0037] That is, the above-described dental floss body (110) is formed with a hook part (111) formed in a "Y" shape spaced apart from each other at one end, and a dental floss container receiving part (113) that rotatably receives a dental floss bobbin (A) on which dental floss is wound and is covered with a cover part (112) is formed at the other end, and a hook groove (111a) is formed and provided at the tip of the hook part (111) so that dental floss drawn from the dental floss bobbin (A) can be caught.

[0038] In addition, a tension adjustment hole (114) is formed and provided between the hook (111) of the above-described floss body (110) and the floss container receiving part (113) so that the floss tension maintenance winding part (130) can be rotatably inserted.

[0039] In addition, a tension-adjusting protrusion (115) is formed on the inner surface of the tension-adjusting hole (114) so ​​that the tension-adjusting protrusion (115) can be formed at a position facing each other and elastically pressurize the outer surface of the tension-adjusting winding part (130) for maintaining the dental floss tension, thereby enabling the tension-adjusting winding part (130) to adjust and maintain the tension of the dental floss.

[0040] Here, the tension-adjusting protrusion (115) is formed to bend downward from one end to the other so as to prevent damage due to pressure on the outer surface of the floss tension-maintaining winding part (130) by elastically bending and restoring when the floss tension-maintaining winding part (130) is rotated.

[0041] The above-described floss tension maintenance winding part (130) is formed to be rotatably inserted into the tension adjustment hole (114) of the floss body part (110) so as to wind the floss taken out from the floss bobbin (A) in response to rotation, and is provided on the outer circumference so as to be able to maintain the tension of the wound floss by being caught by the tension adjustment protrusion (115) so as to be able to be adjusted.

[0042] That is, the above-mentioned floss tension maintenance winding part (130) is configured with a connecting piece (131) formed with a circular cross-section so that one end is connected to the double floss tension maintenance means (170) by being rotatably inserted into the tension adjustment hole (114) of the floss body part (110), and a tension adjustment piece (132) having a tension adjustment protrusion (132a, 132b) formed radially on the outer circumference so as to catch the tension adjustment protrusion (115) on the upper surface of the connecting piece (132), and an insertion part (133) provided with a fitting piece (137) formed on the lower surface of the tension adjustment piece (132) at a position facing each other by a cut-out space part (136) to be fitted into the double floss tension maintenance means (170), and an insertion part (133) which is formed with a diameter from the upper surface of the insertion part (133) so as to be connected to the double floss tension maintenance means (170) The insertion part (133) is configured with a hooking part (134) that is fixedly hooked to the floss body part (110) when inserted into the tension adjustment hole (114), and the hooking part (134) is provided with a linear winding groove (135) formed so that the floss drawn out from the floss bobbin (A) can be inserted and wound on the outer surface of the hooking part (133) in response to rotation by being cut from the upper surface to a part of the insertion part (133).

[0043] The above-described double floss tension maintenance means (170) is provided so as to be able to double-adjust and maintain the tension of the floss wound on the floss tension maintenance winding part (130) by rotatably connecting one end of the floss tension maintenance winding part (130) rotatably inserted into the tension adjustment hole (114) of the floss body part (110) to the central part, and is positioned at the lower part of the floss body part (110) and rotating in one direction.

[0044] That is, the above-described double floss tension maintenance means (170) is formed in a circular plate shape, and a receiving hole (171a) is formed in the central portion so as to be able to receive the connecting piece (131) of the floss tension maintenance winding part (130), and a connecting protrusion (171b) having a fitting groove (171c) is formed at the top surface so as to be able to receive the receiving hole (171a), and a double floss tension maintenance rotating gear portion (171d) is formed around the connecting protrusion (171b), and a plurality of fixing protrusions (171e) are formed at regular intervals in the radial direction on the outer circumference, and a step surface (171f) for catching is formed on the inner surface of the receiving hole (171a). A double floss tension maintaining screw groove (172) formed on the bottom surface of the connecting piece (131) of the winding part (130) for maintaining the floss tension, and an insertion part (173a) having a screw portion (not shown) formed on the outer surface so that one end of the double floss tension maintaining rotary part (171) passes through the receiving hole (171a) and is screw-connected to the double floss tension maintaining screw groove (172) and the other end is provided with a hooking part (173b) formed so that it can be hooked to the double floss tension maintaining rotary part (171), and a double floss tension maintaining connecting piece (131) of the insertion part (133) formed on the bottom surface of the floss body part (110) so that the double floss tension maintaining rotary part (171) is connected to the receiving hole (171a) of the connecting piece (131) of the insertion part (133) A double floss tension maintenance gear part (174) which is provided so that the tension of the floss can be adjusted and maintained in two directions by rotating the double floss tension maintenance rotation member (171) in one direction by engaging with the double floss tension maintenance rotation gear part (171b) located on the bottom surface of the floss body part (110) while being inserted inward, and is supported by being caught on a catch step surface (171d) by being inserted into the inside of the receiving hole (171a) of the double floss tension maintenance rotation member (171).The other end is composed of a double floss tension maintenance compression spring (175) that is provided to be caught by a catch portion (173b) of the double floss tension maintenance connecting member (173), and a double floss tension maintenance rotating member (171) that elastically wraps around the bottom surface to prevent the double floss tension maintenance connecting member (173) from coming off while allowing the double floss tension maintenance rotating member (171) to be easily rotated, and a double floss tension maintenance cap (175) made of silicone that is provided with a plurality of catching holes (176a) formed at regular intervals in a radial direction on the outer circumference so that a fixing protrusion (171c) can be caught by penetrating through it.

[0045]

[0046] By means of the dental floss holder capable of dual tension control according to the present invention configured as described above, the tension of the dental floss can be controlled and maintained firstly by the dental floss tension maintaining winding part and secondly by the dual dental floss tension maintaining means.

[0047] That is, after the floss drawn from the floss bobbin (A) is inserted through the winding groove (135) formed in the hooking portion (134) of the floss tension-maintaining winding portion (130), the floss is wound on the tension-adjusting piece (132) in response to the rotation of the floss tension-maintaining winding portion (130), and the tension-adjusting protrusion (115) formed on the inner surface of the tension-adjusting hole (114) of the floss body (110) is caught by the tension-adjusting protrusions (132a, 132b), thereby first maintaining the tension of the floss.

[0048] In addition, since the fitting piece (137) of the above-mentioned floss tension-maintaining winding part (130) is fitted into and connected to the fitting groove (171c) of the double floss tension-maintaining means (170), the tension of the floss can be maintained in the above-mentioned double floss tension-maintaining means (170) together with the above-mentioned floss tension-maintaining winding part (130).

[0049] Due to this, the tension of the floss, which may become loose or weak when using the floss, can be double-adjusted by the floss tension maintenance winding part and the double floss tension maintenance means, thereby preventing floss waste.

[0050] The above description is merely an illustrative description of the technical idea of ​​the present invention, and those skilled in the art will appreciate that various modifications and variations may be made without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the technical idea of ​​the present invention, and the scope of the technical idea of ​​the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.

[0051] Description of the symbol

[0052] A; floss bobbin

[0053] 100; Double tension adjustable floss holder

[0054] 110 ; Body for dental floss

[0055] 130; Winding part for maintaining dental floss tension

[0056] 150 ; Cutting member

[0057] 170; Double floss tension maintenance device

Claims

1. In a dental floss holder with dual tension adjustment, A floss body (110) having a hook portion (111) formed at one end with a hook groove (111a) formed so that floss can be caught at the tip while being spaced apart from each other, and a floss container receiving portion (113) formed at the other end to rotatably receive a floss bobbin (A) on which floss is wound and covered with a cover portion (112), and a tension adjusting hole (114) formed between the hook portion (111) and the floss container receiving portion (113), and elastic tension adjusting protrusions (115) formed at opposite positions on the inner surface of the tension adjusting hole (114) are provided; A floss tension maintenance winding part (130) is formed to be rotatably inserted into the tension adjustment hole (114) of the above-mentioned floss body (110) so as to wind the floss taken out from the floss bobbin (A) in response to rotation, and is provided on the outer circumference so as to be able to maintain the tension of the wound floss by being caught on the tension adjustment protrusion (115) according to adjustment; A cutting member (150) that is fixed to the upper surface of the floss body (110) and is positioned between the tension adjustment hole (114) and the floss container receiving part (114) so ​​as to be able to cut the used floss; A double floss tension maintenance means (170) is provided so that the floss tension can be double-adjusted and maintained by being rotatably connected to one end of a floss tension maintenance winding part (130) rotatably inserted into a tension adjustment hole (114) of the floss body part (110) and thereby rotated in one direction at the lower part of the floss body part (110). A dual tension adjustable dental floss holder characterized by including:

2. In paragraph 1, The above-mentioned floss tension maintenance winding part (130) is composed of a connecting piece (131) formed with a circular cross-section so as to be rotatably inserted into the tension adjustment hole (114) of the floss body part (110) and connected at one end to the double floss tension maintenance means (170), a tension adjustment piece (132) having a diameter expanded from the upper surface of the connecting piece (132) and having tension adjustment protrusions (132a, 132b) formed radially on the outer surface to catch the tension adjustment protrusion (115), and an insertion part (133) provided with a fitting piece (137) formed at a position facing each other by a cut-out space (136) on the lower surface of the tension adjustment piece (132) to be fitted into the double floss tension maintenance means (170), and an insertion part (133) formed so as to be expanded from the upper surface of the insertion part (133) so that the insertion part (133) is A double tension-adjustable dental floss holder, characterized in that it comprises a hooking portion (134) that is fixedly hooked to the dental floss body (110) when inserted into the tension-adjusting hole (114), and the hooking portion (134) is further provided with a linear winding groove (135) formed so that the dental floss drawn out from the dental floss bobbin (A) can be inserted and wound on the outer surface of the hooking portion (133) in response to rotation by being cut from the upper surface to a portion of the insertion portion (133).

3. In paragraph 2, The above double floss tension maintenance means (170) is formed in a circular plate shape, and has a receiving hole (171a) formed in the central portion to accommodate the connecting piece (131) of the floss tension maintenance winding portion (130), and has a connecting projection (171b) formed in a protruding column shape including the receiving hole (171a) on the upper surface, and has a fitting groove (171c) formed at the tip to accommodate the fitting piece (137), and a rotating gear portion (171d) for maintaining double floss tension is formed around the connecting projection (171b), and a step surface (171f) for catching is formed on the inner surface of the receiving hole (171a), and a rotating member (171) for maintaining double floss tension, and the connecting piece (131) of the floss tension maintenance winding portion (130) A double floss tension maintaining screw groove (172) formed on the bottom surface, and an insertion part (173a) having a screw portion formed on the outer surface so that one end penetrates the receiving hole (171a) on the bottom surface of the double floss tension maintaining rotary member (171) and is screw-connected to the double floss tension maintaining screw groove (172), and a double floss tension maintaining connecting member (173) having a hooking part (173b) formed on the other end so as to be hooked to the double floss tension maintaining rotary member (171), and a double floss tension maintaining connecting member (173) formed on the bottom surface of the floss body (110) so that the double floss tension maintaining rotary member (171) inserts the connecting piece (131) of the insertion part (133) into the receiving hole (171a) and is positioned on the bottom surface of the floss body (110), thereby maintaining the double floss tension. A double floss tension maintenance gear part (174) that is provided so as to be able to double-adjust and maintain the tension of the floss in response to the rotation of the double floss tension maintenance rotating member (171) in one direction by engaging with the rotating gear part (171b), and a double floss tension maintenance compression spring (175) that is provided so as to be supported by a hooking step surface (171d) at one end by being inserted into the receiving hole (171a) of the double floss tension maintenance rotating member (171) and to be able to be hooked by a hooking portion (173b) of the double floss tension maintenance connecting member (173),A double tension-adjustable dental floss holder characterized by comprising a double dental floss tension-maintaining cap (175) formed in a cap shape so as to prevent detachment of the double dental floss tension-maintaining connecting member (173) by elastically wrapping and covering the double dental floss tension-maintaining rotating member (171) from the bottom surface, while allowing the double dental floss tension-maintaining rotating member (171) to be easily rotated.

4. In paragraph 3, A double tension-adjustable dental floss holder characterized in that a plurality of fixing protrusions (171e) are further formed at regular intervals in a radial direction on the outer surface of the above-mentioned double dental floss tension-maintaining rotating member (171), and a plurality of catching holes (176a) are further formed at regular intervals in a radial direction on the outer surface of the above-mentioned double dental floss tension-maintaining cap (175) so as to be able to penetrate and catch the fixing protrusions (171e).

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