JP2009148461A - Navel brush - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide means capable of efficiently removing dirt of the navel by an easy operation. <P>SOLUTION: The navel brush 1 has a brush base part 2 disposed with a plurality of brush bristles 3, and rakes off the dirt D stuck to a navel cavity N by the brush bristles 3 inserted to the navel cavity N. The plurality of brush bristles 3 are disposed on a brush bristle disposing surface 2A so that the bristle tips of the plurality of brush bristles 3 can be spread from the center part of the brush bristle disposing surface 2A of the brush base part 2 to the peripheral edge part, in a state of being inserted into the navel cavity N. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a navel brush in which brush hairs are inserted into a navel recess, and dirt adhered to the navel recess is scraped off and removed by the brush hair.

Conventionally, when removing dirt (navel dirt) adhering to the navel recess (navel cleaning), the navel dirt is scraped off with a cotton swab or wiped off with a cloth.
However, such a navel cleaning method tends to give pain and discomfort to the navel recess, and is troublesome.

As a means to easily clean the navel without giving pain or discomfort to the navel recess, a means to soften and remove the navel by covering the navel with a bandage-like patch with an ointment is proposed. (For example, refer to Patent Document 1 below).
Further, the present applicant has proposed a navel recess cleaning agent that is solidified after a certain period of time after being introduced into the navel recess and can be taken out from the navel recess accompanied by the contamination of the navel (for example, the following) Patent Document 2).

JP 2006-314750 A JP 2004-339201 A

  However, the conventional means described in Patent Documents 1 and 2 required a certain amount of time to soften the navel and to solidify the cleaning agent.

  Therefore, an object of the present invention is to provide means capable of efficiently removing dirt on the navel by a simple operation.

  The present invention is a navel brush comprising a plurality of brush bristles arranged on the brush base, and scrapes off dirt adhering to the navel recess by the brush bristles inserted into the navel recess, wherein the plurality of brush bristles The brush bristles are arranged so that the bristles of the plurality of bristles can be widened from the central part to the peripheral part of the bristles arrangement surface of the brush base when inserted in the navel recess. The above object has been achieved by providing a navel brush disposed on a surface.

  According to the navel brush of the present invention, dirt on the navel can be efficiently removed by a simple operation.

Hereinafter, the navel brush of the present invention will be described with reference to the drawings based on a first embodiment which is a preferred embodiment thereof.
As shown in FIGS. 1 to 4, the navel brush 1 of the first embodiment has a plurality of brush bristles 3 disposed on the brush base 2, and removes dirt D adhering to the navel recess N from the navel recess N. The navel brush is scraped off by the bristle 3 inserted in In the brush 1 of the first embodiment, a plurality of brush bristles 3 are inserted from the center of the brush bristle arrangement surface 2A of the brush base 2 toward the peripheral edge in a state where the bristles 3 are inserted into the navel recess N. It is arrange | positioned by 2 A of brush bristle arrangement | positioning surfaces so that the hair | bristle tip of this bristle 3 can be expanded.

As shown in FIGS. 1 and 2, the brush base 2 has a bowl-like shape as a whole. That is, the brush base portion 2 has a shape in which the inner diameter portion gradually increases from the substantially circular bottom portion toward the upper opening portion in plan view.
As shown in FIG. 1, before the brush hairs 3 are inserted into the navel recess N, the tips of the brush hairs 3 do not spread but extend in parallel downward.

  The brush bristle arrangement surface 2 </ b> A is a surface on which the bristle 3 is arranged on the lower surface of the brush base 2. The brush bristle arrangement surface 2A has a step-like multi-stage structure that recedes stepwise from the central part toward the peripheral part. More specifically, as shown in FIG. 1 (b), in the state where the bristles of the bristle 3 are directed downward, the bristle arrangement surface 2A becomes higher stepwise from the central part toward the peripheral part. ing. In the first embodiment, the bristle arrangement surface 2A has a three-stage structure.

  When viewed from the bottom, the first-stage brush bristle arrangement surface 21 has a substantially circular shape. The second-stage brush bristle arrangement surface 22 extends around the outer circumference of the first-stage brush bristle arrangement surface 21 and has a substantially hollow shape (a shape obtained by hollowing out a small circle from the center of a large circle). is doing. The third stage bristle arrangement surface 23 extends around the outer circumference of the second stage bristle arrangement surface 22 and has a substantially hollow circular shape.

  The thickness of the brush base 2 is substantially equal. Accordingly, the base upper surface 2B, which is the opposite surface of the brush bristle arrangement surface 2A, also recedes gradually from the center toward the peripheral edge, like the brush bristle arrangement surface 2A.

A plurality of bristles 3 (31, 32, 33) are arranged on the bristles arrangement surface 2A. In the first embodiment, a plurality of brush bristles 31 are provided on the first bristles arrangement surface 21, the second bristles arrangement surface 22 and the third bristles arrangement surface 23, respectively. 32 and 33 are arranged. Each of the bristle 31, 32, and 33 is a cylindrical column having a circular cross section, and has the same diameter.
The plurality of brush bristles 31 are densely arranged on the first-stage bristles arrangement surface 21. The plurality of brush bristles 32 are circumferentially arranged on the second bristles arrangement surface 22 with a predetermined interval in the circumferential direction. The plurality of brush bristles 33 are arranged on the third bristles arrangement surface 23 in a circumferential shape with a predetermined interval in the circumferential direction.

The length of the brush bristles 3 is such that when the brush 1 is mounted in the navel recess, the bottom end of the brush bristles 3 comes into contact with the bottom of the navel, and when the brush bristles 3 are opened in the navel recess, It is preferable that a sufficient pressing force can be applied to the inside of the navel to scrape off. From this viewpoint, the length of the bristles 3 is preferably 2 to 20 mm, and more preferably 5 to 15 mm. If the length is within this range, the difference between when the bristle 3 is closed and when the bristle 3 is opened can be sufficiently increased without stimulating the navel, and the effect of spreading by the bristle 3 is sufficiently exerted. Is done. Moreover, the dimensional compatibility of the brush 1 with respect to the size of the navel is widened.
The cross-sectional area of one brush hair 3 is preferably 0.07 to ²⁰ mm ² , more preferably 0.78 to 7.07 mm ² . If it is a cross-sectional area of this range, moderate rigidity can be provided to the bristle 3 without giving a stimulus to a navel. As a result, the bristle 3 can enter the navel fold successfully.
The tip of the bristles 3 may be perpendicular to or slanted with respect to the direction in which the bristles 3 extend. It is preferable to reduce the irritation | stimulation to a navel recessed part by rounding the front-end | tip of the bristle 3 at the angle | corner. When the tip of the brush bristles 3 is rounded, the roundness (curvature radius) is preferably 0.15 to 2.5 mm, more preferably 0.3 to 1.5 mm. The tip of the brush bristles 3 may have a spherical shape having a diameter larger than the diameter of the bristles 3.
The number of bristles 3 per navel brush 1 is preferably 3 to 300, and more preferably 5 to 100. In this case, the number of the bristle 31 disposed on the first bristle arrangement surface 21 is 1 to 10, and the number of the bristle 32 disposed on the second bristle arrangement surface 22 is as follows. It is preferable that the number of the bristle 33 arrange | positioned on the brush bristle arrangement | positioning surface 23 of a 3rd step | paragraph is 2-60, and 2-30.

The rigidity of the brush bristles 3 is preferably 1 to 25N, and more preferably 3 to 18N. This rigidity is a rigidity measured by the following method. By having the rigidity in this range, it is possible to remove dirt without excessively irritating the navel.
[Measurement method of brush bristle stiffness]
It measures according to the measuring method of the bristle hardness of the toothbrush of JIS S3016-1995. Specifically, when one brush bristles is fixed vertically upward at a length of 7 mm and a load is applied vertically downward from the top at a rate of 10 mm / min, the brush bristles immediately before bending (buckling). The maximum load value (N) is defined as the bristle hardness.

A base pressing portion 4 for pressing the brush base 2 is provided on the opposite side of the brush base 2 from the brush bristle arrangement surface 2A.
The base pressing portion 4 has a substantially cylindrical shape that stands up from the bottom of the brush base 2.
By pressing the base pressing portion 4 toward the bristles arrangement surface 2A, the bristles arrangement surface 2A is curved, and the bristles of the plurality of bristles 3 are spread. The brush bristle arrangement surface 2A in a curved state by pressing is a three-dimensional convex surface that is a generally smooth curved surface.

The spread angle of the bristles of the bristles 3 when bent by pressing is preferably 15 to 75 degrees, more preferably 30 to 60 degrees. The “angle at which the bristles of the bristles 3 spread” is the angle at which the bristles 3 extend with respect to the insertion direction into the navel recess N.
Hair Tabadan area consisting of a plurality of bristles 3, in a state in which spread the bristles 3 are preferably 50～700Mm ^2, more preferably 78~450mm ^2. Moreover, the hair | bristle bundle cross-sectional area which consists of a plurality of brush bristles 3 is preferably 12 to 450 mm ² , more preferably 28 to ²⁰⁰ mm ² in a state where the bristles 3 are not spread.
The “hair bundle cross-sectional area” means a cross-sectional area of the hair bundle when it is considered that the hair bundle is formed from a plurality of brush hairs 3. That is, it is the area of a circle circumscribing the tips of the hair bundle (a circle containing the tips of all the brush hairs) when the brush 1 is viewed from the front facing the insertion direction. Accordingly, the cross-sectional area of the hair bundle is minimized when the tip of the brush hair 3 is not widened, and becomes large when the tip of the brush hair 3 is widened.

  As described above, the brush bristle arrangement surface 2A has a multistage structure. By adopting such a structure, there is an advantage that the force required to spread the brush bristles 3 can be reduced. Further, the spread of the brush hair 3 when the base pressing portion 4 is pressed can be increased. In particular, as shown in FIG. 5, when each step of the bristle arrangement surface 2A having a multi-stage structure is inclined inward toward the center of the arrangement surface 2A, an extremely large spread angle is obtained. Is preferable.

  The material of the brush bristles 3 is preferably a rubber-like material, for example. As the rubber-like material, it is preferable to use a thermoplastic elastomer in consideration of the ease of forming the bristles 3. As the thermoplastic elastomer, for example, SEBS (styrene-ethylene-butylene-styrene), SIS (styrene-isoprene-styrene), polyester polyurethane and the like are preferable. The brush bristles 3 may be formed by injection molding directly and integrally with the brush base 2, or the brush base 2 may be manufactured first and the separately manufactured brush bristles 3 may be embedded therein. When polyurethane or the like is used as the material, it can be molded by reaction injection molding (RIM).

  The navel brush 1 according to the first embodiment includes a collar portion 51 that is caught outside the opening of the navel recess N when the bristles 3 are inserted into the navel recess N. The collar portion 51 is a ring-shaped portion having a circular cross section and has a substantially donut shape. The collar 51 is continuously connected to the circular opening in the brush base 2.

  A plurality of collar protrusions 52 are provided below the collar 51. As shown in FIG. 3, when the bristle 3 is inserted into the navel recess N, the collar projection 52 contacts the outside of the opening of the navel recess N (that is, the portion covered by the lower portion of the collar 51). .

Next, an example of a method for removing the dirt on the navel using the navel brush 1 of the first embodiment will be described.
First, as shown in FIG. 3, the bristles 3 are inserted into the navel recess N. At this point, the bristles of the bristles 3 have not spread, so that the bristles 3 can be easily inserted into the navel recess N. When the insertion of the brush bristles 3 proceeds, the collar portion 51 or the collar projection 52 comes into contact with the outside of the opening of the navel recess N. This prevents the tip of the bristles 3 from pressing against the bottom of the navel more than necessary. Further, the action of the collar portion 51 facilitates positioning of the brush 1 when the brush 1 is inserted into the navel recess N. Furthermore, since it is easy for the collar part 51 to keep parallel with a user's skin, it is easy to perform rotation washing mentioned later.

  Next, in a state where the brush bristles 3 are inserted into the navel recess N, the base pressing portion 4 is pressed by the finger from the base top surface 2B toward the brush bristle arrangement surface 2A. Thereby, as shown in FIG. 4, the stepped shape of the brush base portion 2 extends and the first bristle arrangement surface 21 moves toward the back of the navel recess N and is pulled by it, The second stage bristle arrangement surface 22 and the third stage bristle arrangement surface 23 are smooth three-dimensional convex curved surfaces that do not substantially have a step shape. In this case, the bristle 31 disposed on the first bristle arrangement surface 21 located at the center of the bristle arrangement surface 2A does not spread and faces in the same direction as before pressing. Yes. On the other hand, the bristles 32 and 33 arranged on the second and third bristles arrangement surfaces 22 and 23 have their bristles spread by pressing.

  As a result, as shown in FIG. 4, the bristles of the plurality of brush bristles 3 spread, and the plurality of brush bristles 3 with the bristles spread out push the navel recess N where the wrinkles are formed. In addition, since the wrinkles of the navel recess N are elongated, the dirt D in the bag (that is, the hidden dirt in the bag) appears.

Then, by moving the fingertip holding the brush in this state and rotating the brush bristles 31 arranged on the brush vertical arrangement surface 21 of the first stage, that is, the center bristles of the first stage, as a rotation axis, By the plurality of brush bristles 3 with the bristles spread, the dirt D in the navel recess N including the dirt D in the ridge can be efficiently scraped and removed.
In particular, it is possible to easily remove dirt in the ridges of the navel recess N and dirt attached to the side surfaces of the navel recess N, which are difficult to remove with a general brush.
Further, the collar protrusion 52 can remove dirt (not shown) attached to the outside of the opening of the navel recess N.
Moreover, since the navel brush 1 of the first embodiment can be reused many times, the running cost is low.

  When removing dirt from the navel recess, it is preferable to remove the dirt from the navel recess in a bathroom or the like in order to improve dirt removal. In order to further improve the cleaning performance, it is more preferable to remove the dirt after applying a detergent such as a body soap to the navel recess.

  In the above-described embodiment, the brush bristles 3 have a columnar shape with a circular cross section, but instead, brush hairs having a flat cross section (for example, an oval shape) may be employed. In this case, it is preferable that each bristle is disposed such that the long axis in the flat cross section extends radially from the center of the brush disposition surface 2A. By adopting such a configuration, a part of the side surface of the brush hair can be made thin (thin) while ensuring a large cross-sectional area of the brush hair and keeping its rigidity moderately high. Since the folds of the navel are present substantially linearly along the depth direction of the umbilicus, the thin (thin) portion of the side surface of the brush bristle easily enters between the folds. As a result, for example, as shown in FIG. 6A, there is an advantage that the side surface and the tip of the bristles 3 can easily enter the back of the ridge S of the navel recess N and the effect of scraping off the dirt is improved. FIG. 6A is a schematic view of the state in which the brush 1 is inserted into the navel recess N as viewed from the same direction as the insertion direction.

  Further, by making the cross-section of the bristle 3 flat, it is possible to impart a dirt removing effect not only to the tip of the bristle but also to the side of the bristle. Thereby, especially when the length of the bristle arranged on the second and third brush arrangement surfaces is sufficiently long, as shown in FIG. When touched, the dirt removal effect can be exhibited. The size of the human navel varies, and when the size of the navel when viewed from the front (opening area) is small, the tip of the bristle hits the inner surface of the navel and the bristle does not fully open, and the bristle is bent. The side surface will hit the inner surface of the navel. By making the cross-section of the brush bristles 3 flat, the dirt removal effect can be achieved even in this state.

  Furthermore, since the width of the bristle in the circumferential direction of the array circle of the bristle can be reduced, a large number of bristle can be arranged. As a result, since the hair density when the brush hair is opened can be increased, the effect of removing dirt can be further enhanced.

  As the cross-sectional shape of the bristle, in addition to the above-described shape, a substantially triangular shape shown in FIG. 6C, a substantially diamond shape shown in FIG. 6D, and a substantially star shape shown in FIG. Various irregular cross-sectional shapes such as the shape can also be adopted. It is also preferable that these irregular cross sections are twisted along the direction in which the brush hairs extend. Furthermore, it is also preferable that the cross section near the base of the bristle is circular, and that the cross section gradually changes to a deformed cross section as it approaches the tip. Thereby, the rigidity of the brush hair can be further increased. Regardless of the shape of the cross-section of the brush hair, it is preferable to roughen the surface in a satin finish because the effect of removing dirt is further improved.

  Next, another embodiment of the navel brush of the present invention will be described. In the other embodiments, differences from the first embodiment described above will be mainly described, and the same points are denoted by the same reference numerals and description thereof will be omitted. For the points that are not particularly described, the description of the first embodiment is applied as appropriate. In other embodiments, the same effects as those of the first embodiment can be obtained.

  As shown in FIG. 7, the navel brush 1 of the second embodiment is mainly provided with a gripping part 61, a button 62, a rod-like connecting part 63, a locking shaft 64, and the like as compared with the first embodiment. Different.

The grip part 61 is a rod-shaped part that is gripped during use.
The button 62 is connected to the distal end portion of the grip portion 61 and has a substantially disk shape that can cover the upper opening portion of the brush base portion 2. Further, the lower part 62 </ b> A of the button 62 has a shape projecting downward and can press the base pressing part 4 projecting upward from the bottom of the brush base 2.
The rear end portion of the rod-like connecting portion 63 is fixed to the center portion of the gripping portion 61 by a locking shaft 64. The brush base portion 2 is connected to the distal end portion of the rod-like connecting portion 63 via the flange portion 51.

In the navel brush 1 of the second embodiment, in a state where a plurality of brush bristles 3 are inserted into the navel recess, by pressing the button 62 (or the vicinity of the tip of the gripping portion 61) toward the brush base 2, By pressing the convex lower part 62 </ b> A of the button 62, the brush base 2 can be pressed via the base pressing part 4. As a result, the tips of the plurality of brush hairs 3 can be widened as in the first embodiment.
Therefore, according to the navel brush 1 of 2nd Embodiment, the effect similar to 1st Embodiment is show | played, and even if it does not press the base part press part 4 directly with a finger | toe, the hair | bristle of the multiple brush hair 3 is shown. There is an effect that the tip can be easily expanded.

The navel brush of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist of the present invention.
For example, the brush bristles 3 are formed integrally with the brush base 2 in the embodiment, but may be formed separately from the brush base 2 in the present invention. For example, the brush bristles 3 may be implanted in the brush base 2.
The curved shape of the brush bristle arrangement surface 2A is not limited to a three-dimensional curved surface shape, and may be a two-dimensional curved surface shape.

  Before being inserted into the navel recess N, the plurality of brush bristles 3 have their bristles extending in parallel in the embodiment, but in the present invention, the bristles are constricted. On the contrary, the end of the hair may be slightly spread. That is, in the present invention, as long as the bristles 3 can be inserted into the navel recess N, the ends of the bristles 3 may be narrowed, may extend in parallel, or may be slightly expanded. May be.

Fig.1 (a) is a perspective view which shows 1st Embodiment of the navel brush of this invention, FIG.1 (b) is the longitudinal cross-sectional view. Fig.2 (a) is a perspective view which shows the navel brush of 1st Embodiment of the state by which the hair | bristle tip of the bristle was spread, FIG.2 (b) is the longitudinal cross-sectional view. FIG. 3 is a longitudinal sectional view showing a state in which the navel brush according to the first embodiment is inserted into the navel recess. FIG. 4 is a longitudinal cross-sectional view showing a state in which the tip of the bristles is widened by inserting the navel brush of the first embodiment into the navel recess. FIG. 5 is a longitudinal sectional view showing another embodiment of the navel brush of the present invention. FIG. 6A is a schematic view of the state in which the brush is inserted into the navel recess as viewed from the same direction as the insertion direction, and FIG. 6B is the state in which the brush is inserted into the navel recess in the insertion direction. FIG. 6C to FIG. 6E are cross-sectional views showing the shape of the bristles. FIG. 7 is a perspective view showing a navel brush according to the second embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Navel brush 2 Brush base 2A, 21, 22, 23 Brush bristle arrangement | positioning surface 3, 31, 32, 33 Brush bristle 4 Base press part 51 Brim part D Dirt N Navel concave part

Claims (7)

A navel brush in which a plurality of brush bristles are disposed on the brush base, and dirt adhered to the navel recess is scraped off by the brush bristles inserted into the navel recess,
When the plurality of brush bristles are inserted into the navel recess, the bristles of the plurality of brush bristles can be widened from the center of the brush bristles on the brush base toward the periphery. A navel brush disposed on the brush bristle surface.   The navel brush according to claim 1, wherein the plurality of brush bristles are not widened before being inserted into the navel recess.   A base pressing portion for pressing the brush base is provided on the opposite side of the brush base from the brush bristle mounting surface, and the base pressing portion is pressed toward the brush bristle mounting surface. The navel brush according to claim 1 or 2, wherein the brush bristle arrangement surface is curved so that the bristles of the plurality of brush bristles are widened.   4. The navel brush according to claim 3, wherein the curved shape of the brush bristles is a three-dimensional convex surface.   The navel brush according to any one of claims 1 to 4, further comprising a collar portion that is caught outside the opening of the navel recess when the brush hair is inserted into the navel recess.   The navel brush according to any one of claims 1 to 5, wherein the brush bristle arrangement surface is gradually retracted from a center portion toward a peripheral portion.   The length of the said bristle is 2-20 mm, The navel brush in any one of Claims 1-6.

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