Oral cavity massager and oral cavity massage set

Abstract

To provide an oral cavity massager allowing a user to easily, visually recognize a position of a massage part in the oral cavity.SOLUTION: An oral cavity massager comprises a long grip part, a massage part, the elastic body extending from the tip of the grip part, and an operating part provided near the tip of the massage part, inserted into the oral cavity, and operating thereto. The entire length L of the massage part is a 60.0-110.0 mm. The operating part includes a rounded tip and a front part bulging in a curved shape. When a longitudinal length to the rear end of the operating part is LA (mm), the end of the operating part where a center of curvature of a curve forming an edge at the front side of the tip in side view, turns to the opposite side to the axis of the massage part with respect to the surface of the front part, and the width of the rear end of the tip is dB (mm), the end of the tip where the width expansion ends, the width expansion in the curve forming the edge of the tip in front view, then LA / dB is 1.7 to 6.0, and a light source for emitting light that can penetrate through the cheek is provided inside the operating part.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an intraoral massager and an intraoral massage set.

Background Art

[0002] In recent years, many handy types of beauty devices have been developed. In particular, beauty devices that use ultrasonic waves can apply very fine vibrations deep into the skin. It has been confirmed that ultrasonic massage promotes blood circulation and improves the flow of lymphatic fluid. It is also known to activate skin metabolism and promote the excretion of waste products. In addition, various effects have been confirmed, such as the effect of permeating beauty essence deep into the skin by vibration, the effect of lifting clogged pores, and the effect of toning facial muscles to make nasolabial folds less noticeable.

[0003] Nasolabial folds and wrinkles around the mouth are known to be caused not only by the epidermis but also by a decrease in collagen in the dermis, swelling of subcutaneous fat (poor blood flow in blood vessels surrounding muscles, and excess water seeping into subcutaneous tissue and swelling), muscle soreness, poor blood circulation, etc. Massage of these deep subcutaneous areas is physically easier and more effective from the mucosal side inside the mouth than from the skin surface.

[0004] As a beauty device that massages the back of the cheek from inside the mouth to improve nasolabial folds and wrinkles around the mouth, an intraoral massager is known in which a massage part made of an elastic material is provided at the tip side of a rod-shaped grip part (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] Since the position of the massage part in the oral cavity cannot be visually recognized from the outside, there has been a problem that it is difficult to determine which part is being massaged.

[0007] The present invention has been made in consideration of the above points, and an object thereof is to provide an intraoral massager and an intraoral massage set in which the position of the massage part in the oral cavity is easily visible.

Means for Solving the Problems

[0008] The present invention has the following aspects. [1] A long grip part, A massage part which is an elastic body extending from the tip of the grip part, An action part provided near the tip of the massage part and inserted into the oral cavity to act, Comprising, The total length L of the massage part is 60.0 to 110.0 mm, The action part has a rounded tip part, and the front part bulges in a curved surface shape, In the curve forming the edge on the front part side of the tip part in a side view, when the length in the major axis direction up to the rear end of the action part where the center of curvature turns to the side opposite to the axis of the massage part with respect to the surface of the front part is LA (mm), and in the curve forming the edge of the tip part in a front view, when the width of the rear end of the tip part where the widening of the width ends is dB (mm), LA / dB is 1.7 to 6.0, An intraoral massager provided with a light source for irradiating light that can penetrate the cheek inside the action part. [2] Vibration generating means provided on the grip part for vibrating the massage part, A control part for controlling the drive of the vibration generating means, Comprising, The control part, A first mode in which vibration of the massage part at a constant frequency and vibration stop for a predetermined time are repeated, A second mode that repeats the vibration of the massage unit with the frequency changed within the first range and the vibration stop for a predetermined time, A third mode that repeats the vibration of the massage unit with the frequency changed within a second range including a frequency higher than the first range and the vibration stop for a predetermined time, are selectable, The intraoral massager according to [1] above. [3] In the first mode, after vibrating at a frequency of 250 kHz and a duty ratio of 40% for 1 minute, the vibration is repeated with a 2-second stop, In the second mode, as the first range, the frequency is continuously changed from 264 kHz to 250 kHz and the duty ratio is continuously changed from 17.0% to 38.0% and vibrated for 1 minute, and then the 2-second stop is repeated, The third mode is As the second range, the frequency is continuously changed from 277 kHz to 250 kHz and the duty ratio is continuously changed from 17.0% to 38.0% and vibrated for 1 minute, and then the 2-second stop is repeated, The intraoral massager according to [2] above. [4] The light source irradiates red light, The intraoral massager according to any one of [1] to [3] above. [5] The intraoral massager according to any one of [1] to [4] above, and An intraoral massage composition, and An intraoral massage set comprising the same.

Advantages of the Invention

[0009] In the present invention, it is possible to provide an intraoral massager and an intraoral massage set in which the position of the massage unit in the oral cavity is easily visible.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

[0011] [First Embodiment of Oral Massager] Hereinafter, a first embodiment of the oral massager of the present invention will be described with reference to FIGS. 1 to 5. Note that the following embodiments show one aspect of the present invention, do not limit the present invention, and can be arbitrarily changed within the scope of the technical idea of the present invention. Also, in the following drawings, in order to make each configuration easy to understand, the actual structure, the scale, the number, etc. in each structure are made different.

[0012] As shown in FIGS. 1 and 2, the oral massager 1 of the present embodiment includes a long grip portion 10, a massage portion 12 extending from the tip of the grip portion 10, a cap 11 surrounding the periphery of the massage portion 12, vibration generating means 50, and a control portion 60. The cap 11 is detachably attached to the grip portion 10.

[0013] The massage portion 12 has an acting portion 13 that is inserted into the oral cavity and acts near the tip. That is, the oral massager 1 inserts at least the acting portion 13 near the tip 12a of the massage portion 12 into the oral cavity and uses it by pressing or rubbing the target site for massage.

[0014] In the present invention, the "acting part" refers to a part in the curve that forms an edge where the front part bulges from the tip part in a side view of the massage part 12, until the center of curvature turns to the opposite side of the axis of the massage part 12 with respect to the surface of the front part. That is, the rear end of the acting part is the inversion position where the center of curvature in the side view turns to the opposite side of the axis of the massage part 12 with respect to the surface of the front part. When the massage part has a constricted shape in the front view, it is desirable that the rear end of the acting part (the inversion position of the center of curvature in the side view) coincides with the thinnest part of the constricted part in the front view of the massage part 12. When the inversion position of the center of curvature is not clear in the side view, the part from the tip to 45 mm in the major axis direction in the massage part 12 is defined as the acting part. In addition, when the center of curvature turns to the opposite side after maintaining a straight line for a certain interval in the side view, the position of the rear end of the straight line is defined as the rear end of the acting part (the inversion position of the center of curvature) (that is, regardless of whether it is a curve or a straight line, the point where it turns to the opposite side is defined as the rear end of the acting part).

[0015] The oral massager 1 of the present embodiment has an attachment type in which the massage part 12 is detachable from the gripping part 10. Note that the oral massager 1 of the present embodiment may be configured such that the massage part 12 cannot be removed from the gripping part 10.

[0016] The tip part 14 of the acting part 13 in the massage part 12 bulges in a curved shape and has a rounded shape. In the present embodiment, the "rounded tip part 14" means, in the front view, the part from the tip 12a of the acting part 13 to the point where the widening of the width ends in the curved edge shape that bulges outward including the tip 12a. The rear end 14a of the tip part 14 is the point where the widening of the width ends in the curved edge shape that bulges outward including the tip 12a of the acting part 13 in the front view.

[0017] In the present embodiment, the massage portion 12 has a constricted shape in which the width increases from the tip 12a to the rear end 12b in a front view, then narrows, and widens again. That is, the massage portion 12 has a constricted portion 16 that is constricted in a front view. The front portion 18 of the acting portion 13, that is, the front portion 18 on the tip 12a side of the constricted portion 16 in the massage portion 12, bulges in a curved shape.

[0018] In a front view, the width of the portion of the massage portion 12 on the rear end side of the acting portion 13, that is, the width of the portion from the narrowest portion 16a of the massage portion 12 to the rear end 12b, widens toward the rear end 12b. In a side view, the thickness of the portion of the massage portion 12 on the rear end side of the acting portion 13, that is, the thickness of the portion from the narrowest portion 16a of the massage portion 12 to the rear end 12b, increases toward the rear end 12b.

[0019] In the present embodiment, it is preferable that the width and thickness of the portion of the massage portion 12 on the rear end side of the acting portion 13 increase toward the rear end, and the width and thickness of the massage portion 12 are maximized at the rear end. Thereby, the center of gravity of the massage portion 12 is closer to the rear end, and the behavior of the massage portion 12 during oral massage becomes more stable.

[0020] The edge shape on the rear end 12b side of the tip portion 14 of the massage portion 12 in a front view and a side view may be curved, may be linear, or may be a shape in which a curve and a straight line are combined. In this embodiment, the edge shape of the massage portion 12 in a front view changes from being close to a curve from the tip portion 14 to the constricted portion 16 and then separates from it, and from there to the rear end 12b, it changes so as to curve away from each other. The edge shape of the massage portion 12 in a side view is such that the tip portion 14 spreads out in a curve, narrows in a curve from the rear end 14a of the tip portion 14 to the thinnest portion 16a, and spreads out in a curve from there to the rear end 12b. The curve constituting the edge shape of the portion from the thinnest portion 16a to the rear end 12b in the massage portion 12 is a curve whose center of curvature is on the opposite side of the axis of the massage portion 12 with respect to the surface of this portion.

[0021] In a side view, the portion of the massage portion 12 near the tip 12a is warped toward the back side. More specifically, in a side view, the edge shape on the back side of the portion of the massage portion 12 near the tip 12a changes in a curve so as to bulge once toward the back side and then concave toward the front side as it goes from the tip 12a to the rear end 12b. Also, the edge shape on the front side of the portion of the massage portion 12 near the tip 12a changes in a curve so as to bulge toward the front side as it goes from the tip 12a to the rear end 12b. In the oral massager of this embodiment, it is preferable that the portion near the tip of the massage portion is warped toward the back side in this way. By making the front side and the back side asymmetric in a side view in this way, it is easy to obtain an oral massager with excellent usability that can respond to a plurality of movements of pushing and pinching various parts in the oral cavity.

[0022] The overall length L of the massage portion 12 is 60.0 to 110.0 mm, preferably 70.0 to 100.0 mm. If the overall length L is within the above range, excellent usability can be obtained that can respond to a plurality of movements of pushing and rubbing various parts in the oral cavity.

[0023] The radius of curvature of the edge shape of the tip portion 14 of the massage portion 12 in a front view is preferably 1 to 10 mm, more preferably 1 to 5 mm. If the above radius of curvature is within the above range, it becomes easier to push when pressing the massage target site using the tip portion 14 of the massage portion 12.

[0024] In a front view, let the width of the rear end 12b of the massage part 12 be dA (mm), the width of the rear end 14a of the tip part 14 be dB (mm), and the width of the rear end of the acting part 13 be dC (mm). Also, in a side view, let the length of the acting part 13 be LA (mm), the thickness of the rear end 12b of the massage part 12 be dD (mm), the thickness of the rear end 14a of the tip part 14 be dE (mm), and the thickness of the rear end of the acting part 13 be dF (mm).

[0025] The length LA of the acting part 13, that is, the length in the major axis direction from the tip to the rear end of the acting part 13, is the length in the major axis direction from the point where the front part 18 bulging in a curved surface shape in the massage part 12 converges most to the tip 12a. More specifically, the length LA is the length in the major axis direction from the inversion position 17, where the center of curvature turns to the opposite side of the axis of the massage part 12 with respect to the surface of the front part 18, to the tip 12a in the curve forming the edge on the front part 18 side of the tip part 14 in the side view of the massage part 12.

[0026] In the present embodiment, in the major axis direction, the inversion position 17 in the side view coincides with the position of the thinnest part 16a in the front view. That is, the length LA of the acting part 13 coincides with the length from the thinnest part 16a in the front view to the tip 12a. Also, in the present embodiment, the width dB of the rear end 14a of the tip part 14 in the front view is the maximum width on the tip 12a side of the massage part 12 rather than the thinnest part 16a in the front view. The width dC of the rear end of the acting part 13 in the front view is the width of the thinnest part 16a in the front view of the massage part 12.

[0027] The thickness dE of the rear end 14a of the tip part 14 in the side view is the thickness at the position corresponding to the rear end 14a of the tip part 14 in the front view of the massage part 12. In this example, it is the thickness at the position of the maximum width on the tip 12a side rather than the thinnest part 16a in the front view, and it is also the thickness at the position where the front part 18 bulges most in the side view.

[0028] LA / dB is from 1.7 to 6.0, preferably from 1.9 to 5.0. If LA / dB is within the above range, excellent usability can be obtained to cope with a plurality of movements such as pushing or pinching various parts in the oral cavity. Specifically, by making the contact area of the front portion 18 longer in the major axis direction with respect to the shape in the oral cavity with expansion and contraction, a fitting feeling can be obtained. Also, since the bulge of the front portion 18 converges within a certain length range from the tip portion 14 toward the rear end portion of the acting portion 13, the tip portion 14 can easily reach the portion to be massaged, and it becomes easier to push the massage target portion using the tip portion 14.

[0029] In the massage portion 12, dC ≦ dB < dA, and it is preferable that dC is from 7.0 to 13.0 mm and LA is from 25.0 to 60.0 mm. Particularly, it is preferable that dC < dB < dA. Thereby, the usability of the oral cavity massager 1 is improved, and a plurality of movements such as pushing or rubbing various parts in the oral cavity can be performed more simply and sufficiently. Specifically, by providing a constriction, it becomes easier to apply force to the front portion 18, and the tip portion can easily reach the portion to be massaged, and it becomes easier to push the massage target portion using the tip portion 14. Further, since the center of gravity of the massage portion is closer to the rear end, the behavior of the massage portion 12 during oral cavity massage becomes more stable.

[0030] The length LA of the acting portion 13 is preferably from 25.0 to 60.0 mm, more preferably from 30.0 to 50.0 mm. If the length LA is within the above range, the usability of the oral cavity massager 1 is improved, and a plurality of movements such as pushing or rubbing various parts in the oral cavity can be performed more simply and sufficiently.

[0031] The width dB of the rear end 14a of the tip portion 14 in a front view is preferably from 8.0 to 16.0 mm, more preferably from 10.0 to 14.0 mm. If the width dB is within the above range, the usability of the oral cavity massager 1 is improved, and a plurality of movements such as pushing or rubbing various parts in the oral cavity can be performed more simply and sufficiently.

[0032] The length LB of the tip portion 14 is preferably 10.0 to 30.0 mm, more preferably 15.0 to 20.0 mm. If the length LB is within the above range, the usability of the oral massager 1 is improved, and a plurality of movements such as pressing and rubbing various parts in the oral cavity can be performed more simply and sufficiently. In particular, the tip portion can easily reach the part to be massaged, and it becomes easier to press the part to be massaged using the tip portion 14. In this example, the length LB of the tip portion 14 is the length from the tip 12a of the massage portion 12 to the position where the maximum width is obtained on the tip 12a side rather than the thinnest portion 16a in the front view.

[0033] The width dC of the rear end of the working portion 13 in the front view is preferably 7.0 to 13.0 mm, more preferably 8.0 to 12.0 mm. If the width dC is within the above range, the usability of the oral massager 1 is improved, and a plurality of movements such as pressing and rubbing various parts in the oral cavity can be performed more simply and sufficiently. In particular, the ease of applying force when rubbing the part to be massaged using the front portion 18 of the working portion 13 is improved.

[0034] The width dA of the rear end 12b of the massage portion 12 in the front view is preferably 10.0 to 40.0 mm, more preferably 20.0 to 35.0 mm. If the width dA is within the above range, the usability of the oral massager 1 is improved, and a plurality of movements such as pressing and rubbing various parts in the oral cavity can be performed more simply and sufficiently. In particular, since the center of gravity of the massage portion 12 is closer to the rear end, the behavior of the massage portion 12 during oral massage becomes more stable.

[0035] In the massage portion 12, it is preferable that dF ≦ dE < dD, and dE is preferably 6.0 to 13.0 mm. Particularly preferably, dF < dE < dD. Thereby, the usability of the oral massager 1 is improved, and a plurality of movements such as pressing and rubbing various parts in the oral cavity can be performed more simply and sufficiently. In particular, by making the thickness dF or more at the position of dE where the lateral width becomes wider in the front view, it becomes easier to apply force to the front portion 18, and the tip portion can easily reach the portion to be massaged, and it becomes easier to press when pressing the massage target portion using the tip portion 14. Further, since the center of gravity of the massage portion 12 is closer to the rear end, the behavior of the massage portion 12 during oral massage becomes more stable.

[0036] The thickness dE of the rear end 14a of the tip portion 14 in a side view is preferably 6.0 to 13.0 mm, more preferably 7.0 to 12.0 mm. If the thickness dE is within the above range, the usability of the oral massager 1 is improved, and a plurality of movements such as pressing and rubbing various parts in the oral cavity can be performed more simply and sufficiently. In particular, the ease of applying force when massaging the massage target portion using the front portion 18 of the massage portion 12 is improved. Further, it is more preferable that the thickness dE is smaller than the width dB of the rear end 14a of the tip portion 14 in a front view in terms of improving the above effects.

[0037] The thickness dD of the rear end 12b of the massage portion 12 in a side view is preferably 10.0 to 40.0 mm, more preferably 20.0 to 35.0 mm. If the thickness dD is within the above range, the usability of the oral massager 1 is improved, and a plurality of movements such as pressing and rubbing various parts in the oral cavity can be performed more simply and sufficiently. In particular, since the center of gravity of the massage portion 12 is closer to the rear end, the behavior of the massage portion 12 during oral massage becomes more stable.

[0038] The thickness dF of the rear end of the working part 13 in a side view is preferably 5.0 to 12.0 mm, more preferably 6.0 to 11.0 mm. If the thickness dF is within the above range, the usability of the oral massager 1 is improved, and a plurality of movements such as pushing and rubbing various parts in the oral cavity can be performed more simply and sufficiently. Specifically, by making the thickness in the section from the tip part 14 that actively enters the oral cavity to the distance LA on the rear end side dF or more, the tip part can reach easily, and it becomes easier to push when pushing the massage target part using the tip part 14, and the easiness of applying force when rubbing the massage target part using the front part 18 is improved.

[0039] In the working part 13 of the present embodiment, a plurality of linear protrusions 28 are formed on the front part 18. In the present embodiment, it is preferable that a plurality of linear protrusions 28 are formed on the front part of the working part 13 of the massage part 12 in this way. Thereby, the massage feeling is improved, and for example, the easiness of applying force when rubbing the inner cheek using the front part is improved.

[0040] The height of the protrusion 28 of the working part 13 is preferably 0.2 to 5.0 mm, more preferably 1.0 to 4.0 mm. The height of the protrusion 28 is the distance in the direction perpendicular to the long axis direction between the base end and the tip of the protrusion 28 in the cross section obtained by cutting the working part 13 with a plane passing through the tip 12a and perpendicular to the width direction. If the height of the protrusion 28 is within the range, a high massage feeling is easily obtained.

[0041] The number of the protrusions 28 is preferably 0.25 to 1.00 per mm per the length in the long axis direction of the massage part 12, more preferably 0.40 to 0.70 per mm. If the number of the protrusions 28 is within the above range, a high massage feeling is easily obtained. The arrangement pattern of the plurality of protrusions 28 may be appropriately set in consideration of design, the effect of improving the massage feeling, etc. In the present embodiment, in a front view, the plurality of protrusions 28 are arranged obliquely with respect to the long axis direction of the massage part 12.

[0042] The massage part 12 is an elastic body. Thereby, the followability of the movement of the massage part 12 when gripping the gripping part 10 and operating the intraoral massager 1 is improved. Note that "the massage part is an elastic body" means that the massage part is a member having elasticity as a whole.

[0043] When the portion 3.0 mm from the tip 12a in the length direction of the massage part 12 is elastically deformed from the front side to the back side at a speed of 10 mm / second, the repulsive force FA is preferably 0.6 to 2.1 N, and more preferably 0.8 to 1.5 N. If the repulsive force FA is within the above range, the usability of the intraoral massager 1 is improved, and a plurality of movements such as pushing and rubbing various parts in the oral cavity can be performed more simply and sufficiently. Specifically, the fitting feeling of the front part 18 with respect to the shape in the oral cavity involving expansion and contraction is improved, and the ease of applying force when touching the massage target site using the front part 18 is improved.

[0044] When the portion 3.0 mm from the tip 12a in the length direction of the massage part 12 is elastically deformed from the back side to the front side at a speed of 10 mm / second, the repulsive force FB is preferably 0.6 to 2.1 N, and more preferably 0.8 to 1.5 N. If the repulsive force FB is within the above range, the usability of the intraoral massager 1 is improved, and a plurality of movements such as pushing and rubbing various parts in the oral cavity can be performed more simply and sufficiently. In particular, the ease of pushing when using the tip part 14 of the massage part 12 is improved.

[0045] The ratio of the repulsive force FB to the repulsive force FA is preferably 1.2 to 2.0 times, and more preferably 1.2 to 1.5 times. If the above ratio is within the above range, intraoral massage can be performed more effectively. Specifically, by making the repulsive forces on the front side and the back side different, the followability of the tip part 14 with respect to the shape in the oral cavity involving expansion and contraction is improved, and the ease of pushing using the tip part is improved. Also, the fitting feeling to the inside of the cheek using the front part 18 is improved, and it becomes easier to massage with a more preferable pressure.

[0046] Note that the repulsive forces FA and FB are measured as the resistance value (unit: N) when a friction element moving at 10 mm / sec strikes a portion 3 mm from the tip 12a in the longitudinal direction of the massage portion 12, with the rear end 12b of the massage portion 12 vertically fixed with a jig so that the massage portion 12 faces downward, using a device compliant with the ISO 8627 method (toothbrush hardness standard). The repulsive forces FA and FB can be adjusted according to the combination of materials forming the massage portion 12 and its shape.

[0047] The massage portion 12 of the present embodiment includes a base portion 20, a soft portion 22 provided on the tip side of the base portion 20, a support portion 30, and a light source 40. The base portion 20 includes a frustum-shaped connecting portion 24 provided at the tip of the gripping portion 10 and a rod-shaped axis 26 extending from the center of the front end surface of the connecting portion 24. The soft portion 22 has the axis 26 and the support portion 30 disposed therein. The soft portion 22 is detachably attached to the base portion 20. The rear end of the soft portion 22 attached to the base portion 20 coincides with the rear end 12b of the massage portion 12. In the massage portion 12, the soft portion 22 is attached to the base portion 20 so that the axis 26 of the base portion 20 is inserted from the rear end side of the soft portion 22. The connection form between the connecting portion 24 and the gripping portion 10 is not particularly limited.

[0048] The length LD from the tip 12a of the massage portion 12 to the tip of the connecting portion 24 of the base portion 20 (the rear end of the axis 26) is preferably 55.0 to 100.0 mm, and more preferably 65.0 to 90.0 mm. If the length LD is within the above range, the usability of the oral massager 1 is improved, and a plurality of movements such as pressing and rubbing various parts in the oral cavity can be performed more simply and sufficiently.

[0049] As the material for forming the massage portion 12, it may be selected within the range where the massage portion 12 becomes an elastic body as a whole, and it is preferable to select the material so that the repulsive forces FA and FB and their ratio satisfy the above range. The portion that comes into contact with the lips or the massage target site in the oral cavity during the massage in the massage portion 12 is preferably formed of at least a soft resin. Note that the soft resin means a resin having a Shore A hardness of 70 or less according to JIS K 7215.

[0050] As the material for forming the base portion 20, a hard resin having a Shore A hardness of more than 70 according to JIS K 7215 is preferable, and examples thereof include ABS resin (acrylonitrile-butadiene-styrene copolymer), polypropylene, polystyrene, polyethylene terephthalate, polybutylene terephthalate, polycyclohexylene terephthalate, polyacetal, and the like. Among them, ABS resin is preferable from the viewpoints of workability and impact resistance in the electric specification. The hard resin used for the base portion 20 may be one type or two or more types.

[0051] As the material for forming the soft portion 22, a soft resin having a Shore A hardness of 15 to 70 according to JIS K 7215 is preferable, and a soft resin having a Shore A hardness of 20 to 60 is more preferable. Specific examples of the soft resin include silicone resin, isoprene rubber, styrene-butadiene copolymer, and the like. Among them, silicone resin is preferable from the viewpoints of massage feeling, fit, and followability. The soft resin used for the soft portion 22 may be one type or two or more types.

[0052] By forming the massage portion 12 in such a combination of the base portion 20 and the soft portion 22, it becomes easy to ensure appropriate elasticity while making the tip portion moderately flexible. Therefore, it is possible to suppress the massage portion 12 from being excessively bent from the base, and it becomes easier to obtain a sufficient massage effect.

[0053] Preferably, at least 10 mm of the tip 12a of the massage section 12 is formed of only a soft resin without the shaft core 26. That is, the length LC from the tip 12a of the massage section 12 to the tip of the shaft core 26 is preferably 10 mm or more. Thereby, the portion near the tip 12a of the massage section 12 becomes more flexible, and the followability of the massage section 12 to the movement of operating the intraoral massager 1 during massage is improved.

[0054] The length LC is preferably 10 mm or more, and more preferably 15 to 30 mm. If the length LC is equal to or greater than the lower limit value of the above range, the followability of the massage section 12 to the movement of operating the intraoral massager 1 during massage is improved. If the length LC is equal to or less than the upper limit value of the above range, it is easy to suppress the massage section 12 from being excessively bent from the base.

[0055] In the massage section 12, it is preferable that the center of gravity position of the working section 13 is shifted to the back side with respect to the central axis of the gripping section 10. Thereby, the usability of the intraoral massager 1 is improved, and a plurality of movements of pushing and rubbing various parts in the oral cavity can be performed more simply and sufficiently. In particular, the ease of pushing when using the tip portion 14 of the massage section 12 is improved, and the followability of the massage section 12 to the movement of operating the intraoral massager 1 is improved. The center of gravity position of the working section 13 can be adjusted by the warping shape and material of the portion near the tip of the massage section 12.

[0056] The support portion 30 is provided inside the soft portion 22. The support portion 30 is embedded inside the working portion 13. As shown in FIG. 1, the outer contour of the support portion 30 in a front view is substantially similar to the outer contour of the working portion 13. FIG. 3 is a perspective view of the support portion 30. As shown in FIG. 3, the shaft core 26 is inserted into the support portion 30 from the rear end side.

[0057] A plurality (five in FIG. 3) of light sources 40 are arranged on the front side of the support portion 30. The plurality of light sources 40 are arranged at intervals in the major axis direction. Each of the light sources 40 irradiates light R to the front side. The light source 40 is, for example, an LED. The light source 40 may be other light sources such as diodes. At least a part of the light R can penetrate the cheek. The light R is, as an example, red light. Red light is preferable because it gives an image of contributing to improving the skin color as a beauty device. The driving of the light source 40 is controlled by the control unit 60.

[0058] The shape of the gripping portion 10 is not particularly limited as long as it can be gripped, and examples include a cylindrical shape and a quadrangular prism shape. The length of the gripping portion 10 is not particularly limited, and can be, for example, about 80.0 to 150.0 mm.

[0059] The material forming the gripping portion 10 is not particularly limited, and examples include the hard resin mentioned as the material of the base portion 20. The material forming the gripping portion 10 may be one kind or two or more kinds. Also, an elastomer may be partially used to improve the grip.

[0060] The gripping portion 10 of the present embodiment has an outer cylinder portion 41 and an inner cylinder portion 42. The outer cylinder portion 41 is exposed to the outside. The outer cylinder portion 41 has a first portion 41A and a second portion 41B. The first portion 41A is located on the upper side of the outer cylinder portion 41. The first portion 41A is formed in a cylindrical shape of a non-transparent material. Examples of the non-transparent material include the material forming the base portion 20. The base portion 20 protrudes upward from the first portion 41A. The outer diameter of the first portion 41A is the same as the outer diameter of the cap 11.

[0061] The second portion 41B is cylindrical with a bottom portion 41C at the lower end. The outer diameter of the second portion 41B is the same as the outer diameter of the first portion 41A. That is, the oral massager 1 has a cylindrical stick shape in which the outer diameters of the cap 11, the first portion 41A, and the second portion 41B constituting the outer shape are all the same, and has an appearance with excellent design. The second portion 41B is, for example, a matte milky semi-transparent shape with suppressed gloss.

[0062] The inner cylinder part 42 is housed inside the second part 41B. The inner cylinder part 42 is a polygonal cylindrical shape extending downward from the first part 41A. The lower end of the inner cylinder part 42 is formed in a hemispherical shape. The cross-sectional shape of the inner cylinder part 42 is, as an example, a 14-sided polygon.

[0063] The inner cylinder part 42 has a button 43, a mode display part 44, the above-described vibration generating means 50, and a control part 60. The button 43 protrudes from the outer peripheral surface of the inner cylinder part 42 toward the outer cylinder part 41. As shown in FIG. 2, the button 43 penetrates the second part 41B and a part thereof protrudes to the outside. When the button 43 is pressed, the ON / OFF of the oral massager 1 and the switching of the vibration mode of the massage part 12 (details will be described later) are performed.

[0064] The mode display part 44 displays the set vibration mode of the massage part 12. The mode display part 44 of the present embodiment has three display parts, and the display part corresponding to the set vibration mode of the massage part 12 lights up.

[0065] The vibration generating means 50 is provided in the grip part 10 and vibrates the massage part 12. The drive of the vibration generating means 50 is controlled by the control part 60. The vibration generating means 50 is not particularly limited, and examples thereof include an eccentric motor and the like.

[0066] The control part 60 controls the drive of the light source 40 and the vibration generating means 50 according to the pressing operation of the button 43. As the vibration mode of the massage part 12, three modes, namely, a first mode, a second mode, and a third mode, can be selected by the control part 60.

[0067] The first mode is a mode that repeats the vibration of the massage unit 12 at a constant frequency and the vibration stop for a predetermined time. The second mode is a mode that repeats the vibration of the massage unit 12 with the frequency changed within a first range and the vibration stop for a predetermined time. The third mode is a mode that repeats the vibration of the massage unit 12 with the frequency changed within a second range including a frequency larger than the first range and the vibration stop for a predetermined time.

[0068] Figure 4 is a diagram showing the relationship between time (s) and frequency (kHz). As shown in Figure 4, the first mode M1 is a mode that repeats vibration at a frequency of 250 kHz and a duty ratio of 40% for 60 seconds (1 minute) and then stops for 2 seconds. The second mode M2 is a mode that repeats vibration for 1 minute by continuously changing the frequency from 264 kHz to 250 kHz as the first range and then stops for 2 seconds. In the second mode M2, the control unit 60 gently increases the duty ratio from 17.0% to 38.0% and rapidly decreases it from 38.0% to 17.0% (or returns to the beginning) as the frequency changes. The third mode M3 is a mode that repeats vibration for 1 minute by continuously changing the frequency from 277 kHz to 250 kHz as the second range and then stops for 2 seconds. In the third mode M3, the control unit 60 gently increases the duty ratio from 17.0% to 38.0% and rapidly decreases it from 38.0% to 17.0% (or returns to the beginning) as the frequency changes.

[0069] The user of the intraoral massager 1 can select the first mode M1 with a constant frequency, the second mode M2 with a changing frequency, and the third mode M3 with a changing frequency including a large frequency according to their preference in response to the pressing operation of the button 43.

[0070] As the pressing operation of the button 43, for example, by pressing and holding the button 43 for a predetermined time or longer, the intraoral massager 1 is turned on / off, and when the intraoral massager 1 is in the ON state, by pressing the button 43 for a predetermined time or shorter, the first mode M1, the second mode M2, and the third mode M3 are sequentially and cyclically switched.

[0071] FIG. 5 is a cross-sectional view of the intraoral massager 1 in the ON state in contact with the cheek H in the oral cavity. When the massage unit 12 of the intraoral massager 1 is vibrating in the ON state, the control unit 60 drives the light source 40 to emit red light R. Thereby, the light R irradiated from the light source 40 spreads according to the orientation angle of the light source 40 and passes through the cheek H. By the light R passing through the cheek H, the position of the massage unit 12 in the oral cavity can be easily visually recognized.

[0072] (Intraoral massage method) As an intraoral massage method using the intraoral massager 1 of the present embodiment, for example, methods of performing the following programs (P1) to (P5) can be mentioned. (P1) Using the tip portion 14 of the working portion 13 of the massage portion 12 of the intraoral massager 1, move the area around the corner of the mouth (about 1 cm from the corner of the mouth) on the back side of the cheek H in a circular motion with a diameter of about 1 cm while pushing the cheek H outward. Perform on both the left and right sides with a standard of 30 seconds to 1 minute. (P2) Using the entire tip portion 14 of the working portion 13 of the massage portion 12 of the intraoral massager 1, move the back side of the cheek H in one direction from top to bottom while pushing the cheek H outward. Perform on both the left and right sides with a standard of 30 seconds to 1 minute. (P3) Using the tip portion 14 of the working portion 13 of the massage portion 12 of the intraoral massager 1, press the sunken portion at the back of the upper back teeth in the oral cavity at a slow pace of about once every 1 to 2 seconds. Perform on both the left and right sides with a standard of 15 seconds. (P4) Using the tip portion 14 of the working portion 13 of the massage portion 12 of the intraoral massager 1, press the area below the cheekbone on the back side of the cheek H from the bottom at a slow pace of about once every 1 to 2 seconds. (P5) Move slowly while pushing outward along the back side around the lips with the tip portion 14 of the working portion 13 of the massage portion 12 of the intraoral massager 1. Perform 5 rounds as a standard.

[0073] Conventional oral massages only traced the area behind the nasolabial fold (inside the cheek) with an instrument. However, by performing the above-described programs (P1) to (P5) using the oral massager 1 of the present embodiment, many facial muscles around the mouth such as the zygomaticus major, buccinator, masseter, and orbicularis oris, and the modiolus can be stimulated, so that the nasolabial fold and wrinkles around the mouth can be effectively cared for.

[0074] As described above, in the oral massager 1 of the present embodiment, since the light source 40 that irradiates the light R that can penetrate the cheek H is provided inside the action part 13, the position of the massage part 12 in the oral cavity can be easily visually recognized from the outside of the oral cavity.

[0075] In addition, in the oral massager 1 of the present embodiment, since three first modes M1 to M3 with different presence or absence of frequency changes and different ranges of frequency changes can be selected, an optimal mode can be selected according to the user's preference.

[0076] In addition, in the oral massager 1 of the present embodiment, the shape of the massage part 12 provided on the tip side of the grip part 10, the overall length L, or dimensions such as LA / dB are controlled to satisfy specific conditions. As a result, excellent usability that can cope with a plurality of movements of pushing and rubbing various parts in the oral cavity is obtained. Therefore, by using the oral massager 1 of the present embodiment, the effect of oral massage can be easily obtained sufficiently.

[0077] [Second Embodiment of Oral Massager] Subsequently, a second embodiment of the oral massager 1 will be described with reference to FIGS. 6 to 7. In these figures, the same elements as those of the first embodiment shown in FIGS. 1 to 5 are denoted by the same reference numerals, and the description thereof will be omitted.

[0078] In the above-described first embodiment, since the light R spreads according to the orientation angle of the light source 40 and passes through the cheek H, the range of the light R that can be visually recognized from the outside of the oral cavity is larger than that of the massage portion 12. Therefore, there is a possibility that the range of the portion being massaged by the massage portion 12 and the range of the light R that can be visually recognized are deviated.

[0079] As shown in FIG. 6, the oral massager 1 of the present embodiment has a light-shielding portion 45 that covers the edge portion on the light-emitting side (front side) of the light source 40. The light-shielding portion 45 is formed of a material that shields the light R emitted from the light source 40. The light-shielding portion 45 is formed of a hard resin having light-shielding properties (for example, ABS resin) as an example.

[0080] The light-shielding portion 45 protrudes from the support portion 30 toward the front side and covers the edge portion of the light source 40. FIG. 7 is a view of the light source 40 and the light-shielding portion 45 as viewed from the front side. As shown in FIG. 7, the light-shielding portion 45 shields the edge portions of the light source 40 located at both ends in the major axis direction and the edge portions in the direction orthogonal to the major axis direction (the left-right direction in FIG. 7) of the five light sources 40.

[0081] As shown in FIG. 6, in the oral massager 1 having the above-described configuration, the light R irradiated from the light source 40 is suppressed from spreading by the edge portion being shielded by the light-shielding portion 45. As a result, the range of the light R that has passed through the cheek H becomes smaller, and the deviation between the range of the portion being massaged by the massage portion 12 and the range of the light R that can be visually recognized becomes smaller.

[0082] Therefore, in the oral massager 1 of the present embodiment, in addition to obtaining the same operations and effects as those of the first embodiment, it becomes possible to accurately visually recognize the range of the portion being massaged by the massage portion 12.

[0083] [Oral massage set] For the oral massage using the oral massager 1 of the present embodiment, in order to further improve the excellent usability that can correspond to a plurality of movements such as pressing and rubbing various parts in the oral cavity, it is preferable to perform the massage with an oral massage composition adhered to the massage part, which protects the oral mucosa and smooths the movement of the parts in contact in the oral cavity.

[0084] The oral massage composition may be any composition that can provide a protective effect on the oral mucosa, and a gel-like composition is preferable. Examples of the oral massage composition include a composition (hereinafter, also referred to as "composition (X)") containing (A) component: either one or both of sodium dihydrogen phosphate and disodium hydrogen phosphate, (B) component: sodium alginate, and (C) component: either one or both of xanthan gum and sodium polyacrylate.

[0085] The content of the (A) component in the composition (X) is preferably 0.1 to 1.0% by mass, more preferably 0.3 to 1.0% by mass, and even more preferably 0.3 to 0.8% by mass. If the content of the (A) component is at least the lower limit value of the above range, the composition (X) is less likely to drip from the massage part, and the viscosity when diluted by saliva in the oral cavity is less likely to decrease, and excellent retention on the mucosa is easily obtained. If the content of the (A) component is at most the upper limit value of the above range, it is less likely to feel an off-flavor, and the viscosity when diluted by saliva in the oral cavity is less likely to decrease, and excellent retention on the mucosa is easily obtained.

[0086] The content of the (B) component in the composition (X) is preferably 0.1 to 1.0% by mass, more preferably 0.1 to 0.5% by mass, and even more preferably 0.3 to 0.5% by mass. If the content of the (B) component is at least the lower limit value of the above range, the viscosity when diluted by saliva in the oral cavity is less likely to decrease, and excellent retention on the mucosa is easily obtained. If the content of the (B) component is at most the upper limit value of the above range, the composition (X) is likely to spread evenly over the massage target site in the oral cavity at the initial stage of the massage.

[0087] As the component (C), it is preferable to use xanthan gum and sodium polyacrylate in combination because the viscosity of the composition (X) is less likely to decrease when diluted by saliva in the oral cavity and it is easy to obtain excellent retention on the mucosa. In this case, the mass ratio of sodium polyacrylate to xanthan gum is preferably 0.5 to 2.0, more preferably 0.5 to 1.0. If the mass ratio is within the above range, the viscosity of the composition (X) is less likely to decrease when diluted by saliva in the oral cavity, and it is easy to obtain excellent retention on the mucosa.

[0088] The content of the component (C) in the composition (X) is preferably 0.5 to 1.5% by mass, more preferably 0.7 to 1.5% by mass, and even more preferably 0.7 to 1.1% by mass. If the content of the component (C) is not less than the lower limit value of the above range, the composition (X) is less likely to drip from the massage part. If the content of the component (C) is not more than the upper limit value of the above range, the composition (X) is likely to spread evenly over the target site in the oral cavity at the initial stage of massage. Also, the dischargeability is excellent when the composition (X) is filled in a pump-type container.

[0089] The mass ratio (B / C) of the component (B) to the component (C) is preferably 0.1 to 1.0, more preferably 0.10 to 0.45, and even more preferably 0.30 to 0.45. If B / C is not less than the lower limit value of the above range, it is possible to suppress the viscosity of the composition (X) from decreasing too much when diluted by saliva in the oral cavity during use, and it is easy to obtain excellent retention on the mucosa for maintaining the protective effect on the oral mucosa during massage. If B / C is not more than the upper limit value of the above range, the composition (X) is likely to spread evenly over the target site in the oral cavity at the initial stage of massage.

[0090] The ratio of the total mass of the components (B) and (C) to the total mass of the water-soluble polymers in the composition (X) is preferably 70% by mass or more, more preferably 80% by mass or more, and even more preferably 85% by mass or more. If the ratio is not less than the lower limit value, the composition (X) is less likely to drip from the massage part, and the protective effect on the oral mucosa is likely to continue. The term "water-soluble polymer" means a polymer having a weight-average molecular weight of 1,000 or more and being capable of dissolving 1 g or more in 100 g of water at 20°C. Component (B) and Component (C) are water-soluble polymers.

[0091] The composition (X) may contain optional components other than Component (A), Component (B), and Component (C). Examples of the optional components include surfactants, wetting agents, flavoring agents, sweeteners, preservatives, and the like. The optional component may be one kind or two or more kinds. When using a surfactant, a nonionic surfactant is preferred in terms of being less likely to foam.

[0092] The composition (X) preferably contains moisture. The moisture content of the composition (X) is preferably 40.0 to 60.0%, more preferably 45.0 to 60.0%. If the moisture content is at least the lower limit value of the above range, it is easy to suppress the precipitation of the water-soluble polymer. Also, at the initial stage of massage, the composition (X) is likely to spread over the target site in the oral cavity. If the moisture content is at most the upper limit value of the above range, it is easy to obtain excellent retention on the mucosa.

[0093] The viscosity of the composition (X) at 25°C (hereinafter also referred to as "viscosity ηA") is preferably 5,000 to 20,000 mPa·s, more preferably 10,000 to 20,000 mPa·s, and even more preferably 10,000 to 15,000 mPa·s. If the viscosity ηA is at least the lower limit value of the above range, the composition (X) is less likely to drip from the massage part, and when the composition (X) is diluted by saliva in the oral cavity, the viscosity is less likely to decrease, and it is easy to obtain excellent retention on the mucosa. If the viscosity ηA is at most the upper limit value of the above range, the composition (X) is likely to spread over the target site in the oral cavity at the initial stage of massage. Also, the dischargeability is excellent when the composition (X) is filled in a pump-type container. The viscosity ηA of the composition is measured under the conditions of using a B-type rotational viscometer (manufactured by Toki Sangyo Co., Ltd., TVB-10H), a rotation speed of 20 rpm, a temperature of 25°C, for 1 minute, and using a TH5 rotor.

[0094] The viscosity when the composition (X) is diluted 3-fold with artificial saliva (hereinafter also referred to as "viscosity ηB") is preferably 100 to 1000 mPa·s, more preferably 250 to 1000 mPa·s, and even more preferably 250 to 500 mPa·s. If the viscosity ηB is not less than the lower limit value of the above range, the viscosity of the composition (X) is less likely to decrease when diluted by saliva in the oral cavity, and excellent retention on the mucosa can be easily obtained. If the viscosity ηB is not more than the upper limit value of the above range, the composition (X) can easily spread to the target site in the oral cavity at the initial stage of massage.

[0095] The viscosity ηB of the composition is measured under the conditions of using a B-type rotational viscometer (manufactured by Toki Sangyo Co., Ltd., TVB-10M), a rotation speed of 30 rpm, a temperature of 25 °C, for 1 minute, and using a TM2 rotor. The artificial saliva is a liquid with a pH of 7.0 containing 1 mM calcium chloride dihydrate (CaCl2·2H2O), 0.1 mM magnesium chloride hexahydrate (MgCl2·6H2O), and 50 mM potassium chloride.

Examples

[0096] Hereinafter, the present invention will be specifically described by way of examples, but the present invention is not limited to the following description. [Resilient forces FA and FB] The resilient forces FA and FB of the massage part of the oral massager in each example were measured as the resistance value (unit: N) when a friction element moving at 10 mm / second was used to deflect a 3-mm portion from the tip in the longitudinal direction of the massage part while fixing the rear end of the massage part with a jig so that the massage part was downward, in accordance with the ISO 8627 method (toothbrush hardness standard). The resilient force FA was measured as the resistance value (unit: N) when a 3.0-mm portion from the tip 12a in the longitudinal direction of the massage part 12 was deflected from the front side toward the back side. The resilient force FB was measured as the resistance value (unit: N) when a 3.0-mm portion from the tip 12a in the longitudinal direction of the massage part 12 was deflected from the back side toward the front side.

[0097] [Example 1] An intraoral massager with the same form as the intraoral massager 1 illustrated in FIGS. 1 and 2 was produced, except that the portion near the tip 12a of the massage portion 12 was not warped to the back side. The total length L of the massage portion 12 was set to 90.0 mm. The length LA of the working portion 13 of the massage portion 12 was set to 45.0 mm. The width dA of the rear end 12b of the massage portion 12 in a front view was 24.0 mm, the width dB of the rear end 14a of the tip portion 14 of the massage portion 12 was 12.0 mm, and the width dC of the rear end of the working portion 13 of the massage portion 12 was 10.0 mm. The thickness dD of the rear end 12b of the massage portion 12 in a side view was 25.0 mm, the thickness dE of the rear end 14a of the tip portion 14 of the massage portion 12 was 11.0 mm, and the thickness dF of the rear end of the working portion 13 of the massage portion 12 was 10.0 mm. Also, the length LC from the tip 12a of the massage portion 12 to the tip of the axis 26 was set to 18.0 mm. ABS resin was used as the material for forming the gripping portion 10 and the base portion 20. As the material for forming the soft portion 22, silicone rubber (manufactured by ELASTOSIL, product name "LR 3003 / 30 A / B", hardness: A30) was used. The center of gravity position of the working portion 13 in the massage portion 12 coincided with the central axis of the gripping portion 10. The repulsive force FA was 1.0 N, and the repulsive force FB was 1.0 N.

[0098] [Example 2] An intraoral massager similar to that of Example 1 was produced, except that silicone rubber (manufactured by ELASTOSIL, product name "LR 3003 / 50 A / B", hardness: A50) was used as the material for forming the soft portion 22, the portion near the tip 12a of the massage portion 12 was warped to the back side, and the center of gravity position of the working portion 13 in the massage portion 12 was shifted to the back side with respect to the central axis of the gripping portion 10. The repulsive force FA was 1.3 N, and the repulsive force FB was 2.1 N.

[0099] [Examples 3 to 6, 8, 9] An intraoral massager similar to that of Example 1 was produced, except that the dimensions of the massage portion were changed as shown in Table 1.

[0100] [Example 7] A dental massager was produced in the same manner as in Example 1, except that the portion of the massage unit 12 near the tip 12a was warped backward, and the center of gravity position of the working part 13 in the massage unit 12 was shifted backward with respect to the central axis of the gripping part 10. The repulsive force FA was 0.9 N and the repulsive force FB was 1.1 N.

[0101] [Example 10] A dental massager identical to that of Example 2 was produced. Further, 0.1 part by mass of sodium dihydrogen phosphate (manufactured by Taihei Chemical Industry Co., Ltd.), 0.3 part by mass of sodium alginate (KimiCalgin, manufactured by KimiCal Co., Ltd.), 1.0 part by mass of chitosan gum (Monart Gum DA, manufactured by DSP Gohyoh Food & Chemical Co., Ltd.), 65.0 parts by mass of sorbitol solution (70% solution), 3.0 parts by mass of propylene glycol (molecular weight: 76.10), and 0.2 part by mass of a fragrance were added to purified water to prepare a composition (X-1). The water content of the composition (X-1) was 49.9% by mass, the viscosity ηA was 8000 mPa·s, and the viscosity ηB was 100 mPa·s. In Example 10, in the usability evaluation described later, about 0.5 g of the composition (X-1) was placed on the front part of the massage unit, and programs (P1) to (P5) were performed for evaluation.

[0102] [Comparative Examples 1 and 2] A dental massager was produced in the same manner as in Example 1, except that the dimensions of the massage unit were changed as shown in Table 2 to form a substantially conical massage unit.

[0103] [Comparative Examples 3 to 6] A dental massager was produced in the same manner as in Example 1, except that the dimensions of the massage unit were changed as shown in Table 2.

[0104] [Usability Evaluation] Using the dental massager of each example, the following programs (P1) to (P5) were performed. (P1) Using the tip of the working part of the massage unit of the dental massager, the area around the corner of the mouth on the back side of the cheek (about 1 cm from the corner of the mouth) was moved in a circular motion with a diameter of about 1 cm while pushing the cheek outward. This was performed for about 30 seconds to 1 minute on both the left and right sides. (P2) Using the entire front part of the working part of the massage section of the intraoral massager, while pushing the cheek outward, the back side of the cheek was moved in one direction from top to bottom. It was performed for about 30 seconds to 1 minute on both the left and right sides. (P3) Using the tip part of the working part of the massage section of the intraoral massager, the sunken part deep inside the upper back teeth in the oral cavity was pressed at a slow pace of about once every 1 to 2 seconds. It was performed for about 15 seconds on both the left and right sides. (P4) Using the tip part of the working part of the massage section of the intraoral massager, the area around the lower part of the cheekbone on the back side of the cheek was pressed from bottom at a slow pace of about once every 1 to 2 seconds. It was performed for about 15 seconds on both the left and right sides. (P5) Using the tip part of the working part of the massage section of the intraoral massager, while tracing the back side around the lips, it was slowly moved outward while pressing. It was performed for about 5 rounds as a guide.

[0105] For the ease of pressing by the tip part of the working part of the massage section in programs (P1), (P3), and (P4), the ease of applying force by the front part of the working part of the massage section in program (P2), and the followability of the massage section to the operation of the intraoral massager in program (P5), they were respectively judged on a 7 - point scale from 1 point to 7 points. The higher the judgment point, the higher the evaluation. For each evaluation item, the judgment points by 5 panelists were averaged and evaluated based on the following evaluation criteria. <Evaluation Criteria> ◎◎◎: The average of the judgment points is 6.5 points or more and less than 7 points. ◎◎: The average of the judgment points is 6 points or more and less than 6.5 points. ◎: The average of the judgment points is 5.5 points or more and less than 6 points. 〇〇: The average of the judgment points is 5 points or more and less than 5.5 points. 〇: The average of the judgment points is 4.5 points or more and less than 5 points. △: The average of the judgment points is 4 points or more and less than 4.5 points. ×: The average of the judgment points is 3.5 points or more and less than 4 points.

[0106] The conditions such as the dimensions of the massage part of the oral massager for each example, and the evaluation results are shown in Tables 1 and 2.

[0107]

Table 1

[0108]

Table 2

[0109] As shown in Tables 1 and 2, the oral massagers of Examples 1 to 10 that satisfy the conditions defined in the present invention are superior in usability in Programs (P1) to (P5) and have a high response ability to a plurality of movements compared to the oral massagers of Comparative Examples 1 to 6 that do not satisfy the conditions.

[0110] As described above, the preferred embodiments of the present invention have been described with reference to the accompanying drawings, but it goes without saying that the present invention is not limited to such examples. The various shapes, combinations, etc. of the respective constituent members shown in the above-described examples are merely examples, and can be variously changed based on design requirements and the like without departing from the gist of the present invention.

[0111] For example, in the above embodiment, the configuration in which the plurality of light sources 40 each irradiate red light R is illustrated, but the present invention is not limited to this configuration. The plurality of light sources 40 may each have a configuration in which at least a part thereof irradiates green light that can penetrate the cheek, or a configuration in which at least a part thereof irradiates blue light that can penetrate the cheek. Further, a configuration in which a plurality of types of light sources 40 that irradiate different colors of light are arranged, and the light source 40 that irradiates a preferred color can be selected by pressing the button 43 may be adopted.

[0112] Furthermore, three types of light sources 40 that irradiate different colors of light may be arranged, and different colors may be associated with the first mode, the second mode, and the third mode, respectively. By adopting this configuration, it becomes possible to easily visually recognize the selected mode by the color of the light irradiated from the light source 40 when the massage part 12 is vibrating.

Description of Signs

[0113] 1... Oral massager, 10... Gripping part, 12... Massage part, 13... Acting part, 14... Tip part, 16... Constriction part, 16a... Thinnest part, 18... Front part, 20... Base part, 22... Soft part, 24... Connection part, 26... Axis, 40... Light source, 50... Vibration generating means, 60... Control unit.

Claims

1. A long grip portion, a massage portion which is an elastic body extending from the tip of the grip portion, an acting portion provided near the tip of the massage portion and inserted into the oral cavity for acting, comprising: the total length L of the massage portion is 60.0 to 110.0 mm, the acting portion has a rounded tip portion and the front portion bulges in a curved surface shape, in the curve forming the edge on the front portion side of the tip portion in side view, when the length in the major axis direction to the rear end of the acting portion where the center of curvature turns to the side opposite to the axis of the massage portion with respect to the surface of the front portion is LA (mm), and the width of the rear end of the tip portion where the width expansion ends in the curve forming the edge of the tip portion in front view is dB (mm), LA / dB is 1.7 to 6.0, an intraoral massager provided with a light source for irradiating light capable of penetrating the cheek inside the acting portion.

2. vibration generating means provided on the grip portion for vibrating the massage portion, a control portion for controlling the drive of the vibration generating means, comprising: the control portion a first mode of repeating vibration of the massage portion at a constant frequency and vibration stop for a predetermined time, a second mode of repeating vibration of the massage portion with the vibration frequency changed within a first range and vibration stop for a predetermined time, a third mode of repeating vibration of the massage portion with the vibration frequency changed within a second range including a vibration frequency larger than the first range and vibration stop for a predetermined time, is selectable, the intraoral massager according to Claim 1.

3. In the first mode, it vibrates at a vibration frequency of 250 kHz and a duty ratio of 40% for 1 minute and then repeats a stop for 2 seconds, in the second mode, as the first range, it continuously changes at a vibration frequency of 264 kHz - 250 kHz and a duty ratio of 17.0% - 38.0% and vibrates for 1 minute and then repeats a stop for 2 seconds, in the third mode, as the second range, it continuously changes at a vibration frequency of 277 kHz - 250 kHz and a duty ratio of 17.0% - 38.0% and vibrates for 1 minute and then repeats a stop for 2 seconds, the intraoral massager according to Claim 2.

4. the light source irradiates red light, the intraoral massager according to Claim 1.

5. an intraoral massager according to any one of Claims 1 to 4, an intraoral massage composition, comprising an intraoral massage set.

Images