JP2015066341A - Sponge scrub brush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sponge scrub brush suitable for efficiently cleaning various parts such as wide spots, narrow spots, and corners.SOLUTION: A sponge scrub brush 100 has: a first portion 1 that includes a first face 10 and a first opposing face 11 opposing the first face 10; and a second portion 2 that includes a second face 20 and a second opposing face 21 opposing the second face 20 and is continued to the first portion 1. A second thickness H2 between the second face 20 and the second opposing face 21 is thinner than a first thickness H1 between the first face 10 and the first opposing face 11, the first opposing face 11 and the second opposing face 21 form a continuous flat face, and the first face 10 and the second face 20 are connected with each other via an inclined face 30.

Description

  The present invention relates to a sponge scrubbing used for cleaning a bathtub or the like.

  Conventionally, a rectangular parallelepiped sponge scrubber is known for washing bathtubs and the like. Many of these sponge scrubbing have a relatively large thickness so that a relatively large surface of the wall or bottom of the bathtub can be easily cleaned. As a sponge scrubbing having a shape different from the rectangular parallelepiped shape, a sponge scrubbing having a triangular prism shape having a predetermined thickness and configured to be easily bent at the tip has been proposed (see Patent Document 1).

Utility Model Registration No. 3023711

  However, in a bathroom, it is necessary to clean not only a relatively wide surface such as a wall surface and a bottom surface of a bathtub, but also a corner of the bathtub. Since the shape of the sponge sponge is relatively rigid, it is difficult to be deformed following the corner. Therefore, the fitting property at the corner portion is insufficient, and it may not be suitable for cleaning the corner portion. In addition, there are many parts that need to be cleaned in narrow places such as shower hoses, railing rails, racks or faucets in the bathroom, and it is desirable that they can be cleaned at the same time. It was not suitable for cleaning in narrow places.

  Accordingly, an object of the present invention is to provide a sponge scrubbing that can efficiently clean various parts such as a wide part, a narrow part, and a corner.

  One aspect of the present invention is a second portion having a first portion having a first surface and a first facing surface facing the first surface, and a second portion facing the second surface and the second surface. And it is sponge sponge provided with the 2nd part connected with the 1st part. The second thickness between the second surface and the second facing surface is thinner than the first thickness between the first surface and the first facing surface, and the first facing surface and the second facing surface are continuous. It is a flat surface, and the first surface and the second surface are connected via an inclined surface.

  In the present invention, the sponge scrub has a first portion and a second portion thinner than the first portion, and the first surface of the first portion and the second surface of the second portion are connected via an inclined surface. . Accordingly, the sponge scrub has a thick portion with relatively rigidity and a thin portion with more flexibility, and a wide flat surface is formed by the first facing surface and the second facing surface, so that it can be supported by the thick portion. A wide flat surface can efficiently clean a wide surface, and by using a thin portion, a narrow portion can be easily cleaned. In addition, by connecting the thick part and the thin part with an inclined surface, the fitting property to the corner part such as a bathtub is improved, and the corner part can be easily cleaned. In this way, it is possible to efficiently clean various parts such as a wide part, a narrow part, and a corner.

The perspective view which shows the structure of the sponge scrubber which concerns on the 1st Embodiment of this invention. The figure which shows the usage example of the sponge scrubber which concerns on 1st Embodiment. The figure which shows the usage example of the sponge scrubber which concerns on 1st Embodiment. The figure which shows the usage example of the sponge scrubber which concerns on 1st Embodiment. The figure which shows the usage example of the sponge scrubber which concerns on 1st Embodiment. The figure which shows the usage example of the sponge scrubber which concerns on 1st Embodiment. The figure which shows the 1st comparative example of the sponge scrub concerning 1st Embodiment. The figure which shows the 2nd comparative example of sponge scrubber which concerns on 1st Embodiment. The figure which shows the 3rd comparative example of sponge scrubber which concerns on 1st Embodiment. The figure explaining a curved surface follow-up test. The figure explaining a back surface follow-up test. The perspective view which shows the structure of the sponge scrub concerning the 2nd Embodiment of this invention.

  Hereinafter, a sponge scrubber 100 according to the first embodiment of the present invention will be described with reference to FIGS. The sponge scrubber 100 according to the present embodiment is suitable for washing a bathtub and a bathroom, but the use is not limited thereto, and can be used for various washing purposes such as a sink and a washstand. The constituent material of the sponge scrubber 100 is not limited, but any material having a standard hardness generally used for cleaning, for example, a hardness of 100N to 300N (JIS-K6400) may be used. It can be used suitably.

  FIG. 1 is a perspective view showing a configuration of a sponge scrubber 100 according to the first embodiment of the present invention. The sponge scrubbing 100 can be obtained, for example, by processing polyurethane foam into a predetermined shape by various methods such as cutting, punching and molding. In the following, for the sake of convenience, the front-rear direction (length direction), the left-right direction (width direction), and the up-down direction (thickness direction) are defined as illustrated, and the configuration of each part will be described according to this definition.

  As shown in FIG. 1, the sponge scrubber 100 is configured to have a constant width (= W) in the front-rear direction, while the front portion is configured to be thinner than the rear portion. That is, the sponge scrubber 100 includes a thick portion 1 on the rear side and a thin portion 2 on the front side connected to the thick portion 1 via the inclined portion 3. As shown in the drawing, the thick portion 1 has an upper surface 10 and a lower surface 11 that are parallel to each other, and the thickness H1 between the upper surface 10 and the lower surface 11 may be constant. The thin portion 2 may have an upper surface 20 and a lower surface 21 that are parallel to each other, and the thickness H2 between the upper surface 20 and the lower surface 21 may be constant. The thickness H1 of the thick portion 1 is thicker than the thickness H2 of the thin portion 2.

  The lower surface 11 of the thick portion 1 and the lower surface 21 of the thin portion 2 constitute a continuous flat surface. In the present specification, the term “flat” is sufficient if it is almost flat on average, and the presence of minute irregularities and embossing on the surface can be ignored. On the other hand, the upper surface 10 of the thick portion 1 and the upper surface 20 of the thin portion 2 are connected via an inclined surface 30 that is the upper surface of the inclined portion 3, and there is a step between the upper surface 10 and the upper surface 20. The inclined surface 30 is inclined at a predetermined inclination angle θ greater than 0 ° and smaller than 90 ° with respect to an extended surface (horizontal plane) obtained by extending the upper surface 20 of the thin portion 2 rearward. As shown in the drawing, the upper end serving as the connection portion with the upper surface 10 of the thick portion 1 of the inclined surface 30 and the lower end serving as the connection portion with the upper surface 20 of the thin portion 2 are each appropriately curved so that the cross section thereof becomes an arc shape. May be applied.

  The sponge scrubbing 100 further includes left and right side surfaces 4 and 5 extending from the left and right edges of the upper surfaces 10 and 20 and the inclined surface 30 to the left and right edges of the lower surfaces 11 and 21, and the front edge of the upper surface 20 to the front of the lower surface 21. It has a front surface 6 that extends to the edge and a rear surface 7 that extends from the rear edge of the upper surface 10 to the rear edge of the lower surface 11. The side surfaces 4, 5, the front surface 6 and the rear surface 7, and the upper surface 10, 20 and the lower surface 11, 21 are orthogonal to each other. As shown in the figure, when the total length of the thick portion 1 is L1, the total length of the thin portion 2 is L2, and the total length (length in the front-rear direction) of the inclined surface 3 is L3, L1 + L2 + L3 is the total length L of the sponge scissors 100.

  In the sponge scrubber 100 of the first embodiment, the ratio of the thickness H1 of the thick portion 1 to the thickness H2 of the thin portion 2 is preferably 1.3 or more. The ratio may be 1.5 or more, or 2 or more. By having such a thickness difference, the functions of the thick portion 1 and the thin portion 2 can be effectively exhibited. On the other hand, the ratio of the thickness H1 of the thick portion 1 to the thickness H2 of the thin portion 2 is preferably 7 or less in order to improve the followability to the corner portion. Also, it may be 4 or less.

  The thickness H2 of the thin portion 2 is preferably 30 mm or less in order to have flexibility and facilitate cleaning of a narrow part. Furthermore, it may be 27 mm or less, or 25 mm or less. On the other hand, in order to ensure a certain durability, it is preferably at least 10 mm or more or 15 mm or more.

  Furthermore, the ratio of the length L2 of the thin portion 2 to the total length L of the sponge scrubber is preferably at least 0.1 or more in order to exhibit the function of the thin portion 2. Furthermore, it may be 0.2 or more, or 0.3 or more. On the other hand, if the thin portion 2 is too longer than the thick portion 1, it is difficult to clean a wide surface. Therefore, the ratio is desirably 0.8 or less, or 0.5 or less.

  Furthermore, the angle θ formed by the surface of the thin portion 2 and the inclined surface 3 is preferably 11 ° or more in order to ensure good fit to the corner portion. Further, the angle θ may be 20 ° or more, or 30 ° or more. On the other hand, in order to ensure good fit to the corner, it is preferably 70 ° or less, or 50 ° or less.

  As described above, the sponge scrubber 100 of the present embodiment has the thick portion 1 having a constant thickness H1 and the thin portion 2 having a constant thickness H2, and the thick portion 1 and the thin portion 2 are inclined portions 3 (inclined surfaces 30). ) Is connected through. For this reason, the sponge scrubber 100 has a thick portion 1 having relatively high rigidity and a thin portion 2 having low rigidity and more flexibility, and while ensuring ease of use during use, It can be suitably used for cleaning the site.

  The usage example of the sponge scrubber 100 concerning this embodiment, especially the usage example in a bathroom are demonstrated. In the following, the lower surface 11 of the thick portion 1 and the lower surface 21 of the thin portion 2 are collectively referred to as a first cleaning surface 101 of the sponge scrubber 100, and the upper surface 10 of the thick portion 1, the upper surface 20 of the thin portion 2, and the inclined surface. 30 is called the second cleaning surface 102 of the sponge scrubber 100.

  First, a case where a relatively wide flat surface or a gently curved surface such as a side surface or a bottom surface inside the bathtub is cleaned will be described. In this case, as shown in FIG. 2, the left and right side surfaces 4 and 5 of the thick portion 1 of the sponge scrubber 100 are gripped by the thumb and little finger or ring finger, and the forefinger and middle finger are pressed against the upper surface 20 of the thin portion 2. However, the entire first cleaning surface 101 can be pressed against the surface 201 of the bathtub to clean the surface 201. As described above, since the thick portion 1 is gripped during use, it is easy to grip the sponge scrubber 100, and the feeling of use is excellent. Moreover, since the surface 201 of the bathtub is cleaned using the entire flat first cleaning surface 101, a wide range of cleaning can be easily performed.

  As shown in FIG. 3, the front and back of the sponge scrubber 100 can be reversed, and the thin portion 2 of the sponge scrubber 100 can be gripped to clean the surface 201 of the bathtub. In this case, since the tip of the index finger and the middle finger is pressed against the upper surface 10 of the thick portion 1 having relatively high rigidity, the first cleaning surface 101 is firmly pressed against the surface 201 of the bathtub without applying a large force to the fingertip. The bathtub can be easily cleaned.

  When dirt is attached to the first cleaning surface 101, the sponge scrubbing brush 100 is turned upside down as shown in FIG. 4, the first cleaning surface 101 side is gripped, and the bath surface 201 is cleaned with the second cleaning surface 102. You can also In this case, the first cleaning surface 101 is pressed with the palm and fingers and a compressive force is applied to the sponge scrubber 100, whereby the sponge scrubbing device 100 is deformed and the second cleaning surface 102 (upper surfaces 10, 20, inclined surface 30). Becomes almost flat. Thereby, the surface 201 of the bathtub can be cleaned by both surfaces (first cleaning surface 101, second cleaning surface 102) of the sponge scrubbing 100, and the entire sponge scrubbing 100 can be efficiently used for cleaning.

  Next, a case where the corner portion 202 where the side surface and the bottom surface of the bathtub intersect will be described. In this case, as shown in FIG. 5, the thick portion 1 of the sponge scrubber 100 is gripped, a finger is pressed against the upper surface 20 of the thin portion 2, and the thin portion 2 is bent along the corner portion 202. Since the thin portion 2 has low rigidity, the thin portion 2 can be deformed following the corner portion 202 without applying a great force, and the corner portion 202 can be easily cleaned. The thin portion 2 can be easily bent from its root (intersection with the inclined surface 30). For this reason, even when the radius of curvature of the corner portion 202 is small or when the radius of curvature is large, the entire area of the corner portion 202 can be covered with the thin portion 2, and the corner portion 202 can be efficiently covered. Can be washed.

  Finally, the case of cleaning parts other than the bathtub, for example, the shower hose 203 will be described. In this case, as shown in FIG. 6, the thick portion 1 is gripped, the tip of the thin portion 2 is bent with a finger, the outer surface of the shower hose 203 is covered with the thin portion 2, and the outer periphery of the shower hose 203 is covered with the thin portion 2. Clean the surface. Thereby, it is possible to clean not only the bathtub but also fine parts such as the shower hose 203, the handrail rail, the rack, and the faucet using the same sponge scrubber 100, and the application range of the sponge scrubber 100 is expanded.

<Experimental example>
Experiments were conducted on the ease of deformation of sponge scrubbers of various shapes. The experimental results will be described. What was used for the experiment was a sponge scrubber 100 according to the present embodiment, as shown in FIG. 7A, a sponge scrub 110 (comparative example 1) having a rectangular parallelepiped shape (rectangular shape in side view), and as shown in FIG. Sponge scrubber 120 (comparative example 2) having a triangular prism shape (triangle shape in side view) and sponge scrubber 130 (comparative example 3) obtained by removing the inclined portion 3 from the sponge scrubber 100 according to the present embodiment as shown in FIG. 7C. There are four types.

  Note that the first cleaning surface 101 and the second cleaning surface 102 of the sponge scrubbers 110, 120, and 130 in the comparative example are defined as shown. That is, the surface used for normal cleaning is defined as the first cleaning surface 101, and the surface opposite to the first cleaning surface 101 is defined as the second cleaning surface 102. The width W, the total length L, and the maximum thickness H1 of each sponge scrubber 100, 110, 120, 130 are equal to each other, and W = 85 mm, L = 148 mm, and H1 = 50 mm. Each sponge scrubber 100, 110, 120, 130 is made of the same material (urethane foam having a hardness of 115 N).

  Three types of experiments were performed on the above-described sponge scrubbers 100, 110, 120, and 130: a curved surface following test, a back surface following test, and a bending test. In the curved surface following test, as shown in FIG. 8A, each sponge scrubber (sponge scrubber 100 in the figure) is erected at a predetermined angle (70 °) in a container 204 having a corner portion having a predetermined curvature radius (R12 mm). In this state, as shown by the arrow in the figure, a sponge scrubber was pushed in a predetermined amount (80 mm). The followability to the corner portion due to the deformation of the sponge scrubbing at this time was evaluated. As indicated by the dotted line in FIG. 8A, the first cleaning surface 101 deformed along the corner portion is denoted as “followed”, and the others are denoted as “not followed”.

  In the back surface follow-up test, as shown in FIG. 8B, each sponge scrubber (sponge scrubber 100 in the figure) is placed on the flat surface 205 of the test table with the second cleaning surface 102 side down, and an arrow in the figure indicates As shown, a predetermined load P (20N) was applied from above. At this time, as shown by the dotted line in FIG. 8B, the surface 205 is in contact with the second cleaning surface 102 of the sponge sponge is described as “followed”, and the case where it is not expressed as “not followed”.

  In the bending test, a load was applied from above to a portion that was a predetermined length (20 mm) from the front end of each sponge scrubber, and a predetermined amount (60 mm) of sponge scrubbing was pushed in, and the maximum load at that time was recorded. Generally, when the maximum load is less than 5N, it can be said that it is easy to bend.

The results are shown in Table 1.

  Subsequently, in order to obtain the optimum values of the length, thickness and inclination angle of the sponge scrubber 100 according to the present embodiment, experiments were performed using the length, thickness and inclination angle as parameters. The experimental results will be described. In addition, the material of the sponge scrubber 100 used for the experiment is a urethane foam having a hardness of 115 N generally used for a bathtub.

  Table 2 is a table showing the results of performing a curved surface follow-up test, a back surface follow-up test, and a bending test by changing the thickness H1 of the thick portion 1 and the thickness H2 of the thin portion 2 to various values. The curved surface follow-up test was performed on a curved surface having a curvature radius of 22 mm, assuming the corner portion of the bathtub. The total length L of the sponge scissors 100 used in this experiment is 148 mm, the width W is 85 mm, the length L1 of the thick portion 1 is 64 mm, the length L2 of the thin portion 2 is 44 mm, and the length L3 of the inclined portion 3 is 40 mm. Met. The thickness H1 of the thick portion 1 was set every 10 mm in a range (20 mm to 80 mm) suitable for use. For the thick part 1 having a thickness H1 of 40 mm, a curved surface follow-up test, a back face follow-up test and a bending test are performed. For the thick part 1 having a thickness H1 of 20 mm, 30 mm, 50 mm, 60 mm, 70 mm and 80 mm Only the curved surface following test and the back surface following test were conducted.

  As shown in Table 2, when the thickness H1 of the thick portion 1 was 20 mm to 70 mm, the curved surface followability and the back surface followability were good when the thin portion 2 had a thickness H2 of 10 mm to 30 mm. When the thickness H1 of the thick portion 1 was 40 mm, good results were obtained in the bending test when the thickness H2 of the thin portion 2 was in the range of 10 mm to 30 mm. Accordingly, the thickness H2 of the thin portion 2 is preferably 10 mm or more and 30 mm or less. In order to ensure stable curved surface followability and back surface followability, the thickness H2 is more preferably 15 mm or more and 25 mm or less.

  Moreover, it is preferable that the ratio value (H1 / H2) of the thickness H1 of the thick portion 1 to the thickness H2 of the thin portion 2 is 1.3 or more and 7 or less. Regarding the value of this ratio, considering that the thickness H1 of the thick portion 1 is most easily gripped within the range of 40 mm to 50 mm, it is more preferably 1.3 or more and 4 or less.

  Table 3 is a table showing the results of performing the curved surface follow-up test and the thin portion follow-up test by changing the total length L of the sponge scrubber and the length L2 of the thin portion 2 to various values. The thin part follow-up test is an experiment for confirming whether or not the outer peripheral surface of the shower hose 203 can be covered with the thin part 2 as shown in FIG. If you can't do it, it says "I couldn't cover it." The width W of the sponge scrubber 100 used in this experiment is 85 mm, the length L1 and the thickness H1 of the thick portion 1 are 64 mm and 40 mm, the thickness H2 of the thin portion 2 is 20 mm, and the length L3 of the inclined portion 3 is 40 mm. The total length L was set in the range of 55 mm to 230 mm, and the length L2 of the thin portion 2 was set in the range of 10 mm to 190 mm.

  As shown in Table 3, good results were obtained in both the curved surface follow-up test and the thin portion follow-up test, except when the total length L was 113 mm and the length L2 of the thin portion 2 was 10 mm. From this, it is preferable that the value (L2 / L) of the ratio of the length L2 of the thin portion 2 to the total length L is 0.1 or more and 0.8 or less. In addition, considering that the length L1 of the thick portion 1 is too short, it is difficult to grasp the sponge scrubbing 100, and if the total length L is too long, the small part of the sponge scrubbing 100 does not work and is difficult to handle. More preferably, it is 0.7 or less.

  Table 4 shows the results of the curved surface follow-up test and the back face follow-up test performed by changing the inclination angle θ of the inclined surface 30 of the sponge scrubber 100 to various values. The width W of the sponge scissors 100 used in this experiment is 85 mm, the length L1 and the thickness H1 of the thick portion 1 are 64 mm and 40 mm, and the length L2 of the thin portion 2 is 44 mm. The length of the inclined portion 3 is set in the range of 0 to 185 mm, and at this time, the inclination angle θ is set in the range of 10 ° to 90 °.

  As shown in Table 4, when the inclination angle θ was larger than 72 °, good results were not obtained in the back surface follow-up test. On the other hand, when the inclination angle θ was 68 °, good results were obtained in the curved surface follow-up test and the back surface follow-up test. Further, when the inclination angle θ was 10 °, good followability was not obtained in the curved surface follow-up test and the back face follow-up test. Accordingly, the inclination angle θ is preferably 11 ° or more and 70 ° or less. The smaller the inclination angle θ, the higher the back surface followability. However, considering that the total length L of the sponge scrubber 100 becomes longer as the inclination angle θ becomes smaller, the inclination angle θ should be 20 ° or more and 50 ° or less. Even more preferred.

  A sponge scrubber 100 according to the first embodiment includes a thick portion 1 having an upper surface 10 and a lower surface 11 opposite to the upper surface 10, and an upper surface 20 and a lower surface 21 facing the upper surface 20, and continues to the thick portion 1. A thin portion 2. The thickness H2 between the upper surface 20 and the lower surface 21 of the thin portion 2 is thinner than the thickness H1 between the upper surface 10 and the lower surface 11 of the thick portion 1, and the lower surfaces 11 and 21 are continuous flat surfaces. The upper surfaces 10 and 20 are connected via the inclined surface 30.

  Accordingly, for example, when cleaning the corner portion 202 of the bathtub, the thin portion 2 of the sponge scrubber 100 can be easily deformed along the corner portion 202, and the corner portion 202 can be easily cleaned. Further, both the lower first cleaning surface 101 and the upper second cleaning surface 102 can be used for cleaning the bathtub, and the cleaning operation can be performed efficiently. By bending the thin portion 2 along the outer peripheral surface of the shower hose 203, it can also be used for cleaning fine parts such as the shower hose 203. That is, the sponge scrubber 100 according to the present embodiment is suitable for efficiently cleaning various parts.

  Since the upper surface 10 of the thick portion 1 is configured as a flat surface parallel to the lower surface 11, and the upper surface 20 of the thin portion 2 is configured as a flat surface parallel to the lower surface 21, the thick portion 1 has a constant thickness in the front-rear direction. Thus, the sponge scrubber 100 can be easily gripped. In addition, the thin portion 2 also has a constant thickness in the front-rear direction, so that the entire thin portion 2 can be easily bent from the base of the thin portion 2 and good curved surface followability can be obtained.

  If the value of the ratio of the thickness H1 of the thick portion 1 to the thickness H2 of the thin portion 2 is set to 1.3 or more and 7 or less, good curved surface followability and back surface followability can be obtained.

  Furthermore, by setting the thickness H2 of the thin 2 to 10 mm or more and 30 mm or less, the overall thickness of the sponge scrubber 100 is optimized with excellent usability while ensuring curved surface followability and back surface followability. It can be.

  The value of the ratio of the length L2 of the thin portion 2 to the total length L of the sponge scraper 100 from one end portion (rear end surface 7) on the thick portion side to the other end portion (front end surface 6) on the thin portion side is 0.1 or more And if it is set to 0.8 or less, good curved surface followability and thin portion followability can be obtained, and the outer peripheral surface of the shower hose 203 can be easily cleaned.

  If the angle formed between the extended surface obtained by extending the upper surface 20 of the thin portion 2 rearward and the inclined surface 30 is set to 10 ° or more and 70 ° or less, good curved surface followability and back surface followability can be obtained.

  A sponge scrubber according to a second embodiment of the present invention will be described with reference to FIG. In the following description, differences from the first embodiment will be mainly described. The sponge scrubbing according to the second embodiment differs from the sponge scrubbing according to the first embodiment in that the entire sponge scrubbing is covered with a net, and the sponge scrubbing itself covered with the net (hereinafter referred to as a sponge scrubbing main body). These are the same as the sponge scrubber 100 in the first embodiment.

  FIG. 9 is a perspective view showing the configuration of the sponge scrubber 300 according to the second embodiment. In addition, the same code | symbol is attached | subjected to the location same as FIG. The sponge scrubber 300 includes a urethane foam sponge scrubber main body 100 and a net 301 that covers the whole sponge scrubber main body 100. The net 301 is formed by weaving resin fibers such as nylon, polyester, polyethylene terephthalate, and polypropylene.

  The net 301 can be formed using a single type of fiber, but may be formed using a plurality of fibers having different functions. Specifically, for example, flat yarn made of plastic such as polyethylene terephthalate that efficiently scrapes bulky dirt such as soap scum, and dirt such as sebum that cannot be scraped unless the cleaning tool and the surface to be cleaned are in close contact with each other. On the other hand, the net 301 may be formed by weaving yarns made of resin fibers such as nylon, polyester, polypropylene, acrylic, etc. that exert a detergency. Thus, since the material of the surface of the sponge scrubber 300 becomes a net, various stains can be easily washed. Moreover, you may use a microfiber as a resin fiber. Since each fine fiber of the microfiber scrapes off dirt, a higher cleaning ability can be obtained.

  The knitting method is not particularly limited. Not only the knitting method used for various net sponges used in kitchen applications, but also any knitting method that can be used as a wiping member. Further, it is not necessary to have a uniform knitting method for the entire net, and it is possible to change the knitting method depending on the place or change the fiber used depending on the place. Note that the net 301 is not limited to a knitting method that forms a plane with a set of loops, but can also be formed of a woven fabric such as a plain weave.

  The net 301 is formed into a bag shape that is formed into a cylindrical shape by circular knitting, for example, with one end closed and the other end opened. By inserting the sponge scrubber main body 100 from the bag-shaped opening and stitching the opening, the net 301 and the sponge scrubber main body 100 can be integrated. The sponge scrubber body 300 thus completed has stitched portions 302 in the left-right direction at the front end portion and the rear end portion. There are no particular limitations on the shape of the net and the location of the stitches. It is also possible to form a flat sheet-like net, and it is also possible to form a stitched portion on the side surface portion of the crease main body 100.

  Further, at the portion where the upper surface of the thin portion 2 of the sponge scrubber body 100 and the inclined surface 30 intersect (the root of the thin portion 2), the upper surface and the lower surface of the net 301 penetrate through the sponge scrubber main body 100 and have a predetermined length in the left-right direction. The sponge scrubber 300 may have a stitching portion 303 here as well. As a result, a tensile force acts on the net 301, and the net 301 can be substantially adhered to the surface of the sponge scrubber main body 100 over the entire region including the inclined surface of the sponge scrubber main body 100. Thereby, even when covered with a net, the shape of the sponge becomes clear from the outside. That is, the net 301 covers the entire thick portion 1 and the thin portion 2 along the upper surface 10 of the thick portion 1 of the sponge scrubber body 100, the upper surface 20 of the thin portion 2, and the inclined surface 30. Accordingly, it is possible to prevent the net 301 from being displaced from the sponge scrubber main body 100 during use, and it is possible to configure the sponge scrub 300 with a net that is excellent in usability. In addition, the presence of the indentation in the stitching portion 303 makes it easier to place a finger or to bend the sponge scrubber main body 100 easily. As described above, in the sponge scrubber of the second embodiment, the cleaning function can be further improved by covering the entire sponge scrubbing with a net.

  The sponge scrubber 100, 300 according to the above embodiment can be further modified in various ways. For example, on at least one of the first cleaning surface 101 and the second cleaning surface 102 of the sponge scrubber 100, various members made of a material different from urethane foam, such as non-woven fabric or mesh containing an abrasive, film, cloth, or the like The foam layer may be pasted. Further, the sponge scrubbing 100 may have a multilayer structure in which a plurality of foam layers having different colors and hardnesses or a layer of a material different from urethane foam as described above are combined.

  The thick portion 1 as the first portion has an upper surface 10 (first surface) and a lower surface 11 (first opposing surface) facing the upper surface 10, and the thin portion 2 as the second portion is upper surface 20 (second surface). ) And a lower surface 21 (second opposing surface) facing the upper surface 20, and a thickness H 1 (first thickness) between the upper surface 10 and the lower surface 11 is a thickness between the upper surface 20 and the lower surface 21. If the upper surface 10 and the upper surface 20 are connected via the inclined surface 30 and the lower surface 11 and the lower surface 12 form a flat surface that is thicker than the thickness H2 (second thickness), and the lower surface 11 and the lower surface 12 are continuous, Can be anything. That is, the upper surface 10 of the thick portion 1 is a flat surface parallel to the lower surface 11, and the upper surface 20 of the thin portion 2 is a flat surface parallel to the lower surface 21, but the upper surfaces 10 and 20 are not parallel to the lower surfaces 11 and 21. Also good. For example, the upper surfaces 10 and 20 may be curved or may be inclined in the front-rear direction. When the upper surfaces 10 and 20 are inclined, the inclination angle is preferably smaller than the inclination angle θ of the inclined surface 30.

  A handle may be detachably attached to the sponge scrubber, and the handle may be used by gripping the handle. For example, a rod-like handle may protrude from the rear surface 7 of the sponge scrubber 100, such as a toilet scrubber. A handle may be provided on the upper surface 10 of the sponge scrubber 100 like a hand-held mop. In order to make it easier to fold the sponge scrubber, for example, a recess having a predetermined length in the width direction may be provided at the center in the width direction of the base of the thin portion 2 of the sponge scrubber 100. A recess having a predetermined length may be provided in the front-rear direction, or a recess may be provided obliquely in the front-rear direction.

  The sponge scrubbing can be made symmetrical in the front-rear direction by providing the thicker part 1 at the center of the sponge scrubber 100 in the front-rear direction and the thin part 2 from the front and rear ends of the thicker part 1 through the inclined part 3. Good. The thin portion 2 may be formed in a disk shape by providing the thin portion 2 around the entire circumference around the thick portion 1. In this case, a circular through-hole penetrating in the vertical direction may be provided at the center of the thick portion 1, and the entire sponge scrubber may be formed in a donut shape.

  In the above embodiment, the lower surfaces 11 and 21 (first cleaning surface 101) of the sponge scrubber 100 are continuous flat surfaces. Here, the flat surface includes not only a flat surface in the strict sense without unevenness but also a surface configured so as not to change the overall thickness of the sponge sponge. Therefore, a corrugated portion such as a corrugation may be formed over the entire first cleaning surface 101, or an emboss pattern may be formed. An uneven portion may be formed over the entire surface on the second cleaning surface 102 instead of the first cleaning surface 101, or on both the first cleaning surface 101 and the second cleaning surface 102.

  At least one of the corners where the upper and lower surfaces 10, 11, 20, and 21, the left and right side surfaces 4 and 5, and the front and rear surfaces 6 and 7 intersect with each other may be formed in an arc shape. A constricted portion having a predetermined length may be provided from the rear surface 7 to the front at the center in the vertical direction of the left and right side surfaces 4 and 5 of the thick portion 1. In the above embodiment, the sponge scrubbers 100 and 300 have a rectangular shape in plan view, but may have other shapes. In the above embodiment, the sponge scrubbing 100 is provided with the thick part 1 and the thin part 2 and the thickness of the sponge scrubbing is changed in two stages, but the thick part 1 is between the thick part 1 and the thin part 2. An intermediate portion thinner than the thickness H1 and thicker than the thickness H2 of the thin portion 2 may be provided, and the thickness of the sponge scrubber 100 may be changed in three or more stages.

  In the above, the case where the sponge scrubbing is mainly used in the bathroom has been described, but the sponge scrubbing according to the present invention can be used not only in the bathroom but also in various places such as a kitchen and the outdoors. Moreover, it can use also when wash | cleaning tableware etc. not only in washing | cleaning of a bathtub or a shower hose.

  The above description is merely an example, and the present invention is not limited to the above-described embodiments and modifications unless the features of the present invention are impaired. The constituent elements of the embodiment and the modified examples include those that can be replaced while maintaining the identity of the invention and that are obvious for replacement. That is, other forms conceivable within the scope of the technical idea of the present invention are also included in the scope of the present invention. Moreover, it is also possible to arbitrarily combine one or more of the above-described embodiments and modified examples.

DESCRIPTION OF SYMBOLS 1 Thick part 2 Thin part 3 Inclined part 10,20 Upper surface 11,21 Lower surface 30 Inclined surface 100,300 Sponge scrub 301 Net H1, H2 Thickness

Claims (8)

A first portion having a first surface and a first facing surface facing the first surface;
A second portion having a second surface and a second facing surface facing the second surface, the second portion continuing to the first portion;
The second thickness between the second surface and the second facing surface is thinner than the first thickness between the first surface and the first facing surface,
The first facing surface and the second facing surface are continuous flat surfaces,
Sponge scrubbing, wherein the first surface and the second surface are connected via an inclined surface.   The sponge scrubber according to claim 1, wherein the first surface is a flat surface parallel to the first facing surface, and the second surface is a flat surface parallel to the second facing surface.   Sponge scrubber according to claim 1 or 2, wherein a value of a ratio of the first thickness to the second thickness is 1.3 or more and 7 or less.   The sponge scrubber according to any one of claims 1 to 3, wherein the second thickness is 10 mm or more and 30 mm or less.   The value of the ratio of the length of the second portion to the total length from one end portion on the first portion side to the other end portion on the second portion side is 0.1 or more and 0.8 or less. Sponge scrubber of any one of -4.   The sponge scrubber according to any one of claims 1 to 5, wherein an angle formed between the extended surface of the second surface and the inclined surface is 11 ° or more and 70 ° or less.   The sponge scrubber according to any one of claims 1 to 6, further comprising a net covering the entirety of the first part and the second part.   The sponge scrubber according to claim 7, wherein the net covers the entire first portion and the second portion along the first surface, the second surface, and the inclined surface.

Images