JP2017012351A - Warm water washing toilet seat device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a warm water washing toilet seat device capable of improving cleanliness and ease of washing.SOLUTION: A warm water washing toilet seat device comprises: a casing which is disposed on an upper face of a stool type toilet bowl having a bowl part, and stores therein, a washing nozzle for washing a localized part of a user; and a toilet seat 20 which is supported to be opened and closed freely on a front side of the casing. The toilet seat 20 is formed of a material having 90° or higher contact angle with water. On a rear face 20a which is a face on the stool type toilet bowl side when the toilet seat 20 is in a closed state, on an outer face of the toilet seat 20, a toilet seat water repellent processing part 60 for increasing the contact angle and enhancing water repellency, by water repellent processing for forming a minute irregular shape, is formed.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a warm water cleaning toilet seat device.

  As a type of warm water washing toilet seat device, one shown in Patent Document 1 is known. As shown in FIG. 5 of Patent Document 1, the washing nozzle 7 of the warm water washing toilet seat includes a washing water channel portion 8, a nozzle cover 9, and a washing water outlet 10. As shown in FIG. 3, a resin film 14 including a water repellent layer 15 and a resin layer 16 is provided on the outer surface of the nozzle cover 9. The resin layer 16 is formed with a plurality of V-shaped grooves 15 a extending along the axial direction of the cleaning nozzle 7. Thereby, the water repellency of the outer surface of the nozzle cover 9 is improved. Therefore, the liquid dirt adhering to the outer surface of the washing nozzle 7 can be easily dropped into the toilet bowl (toilet bowl).

JP 2006-307522 A

However, in the warm water cleaning toilet seat, dirt is attached not only to the cleaning nozzle, but also to the back surface of the toilet seat (the surface facing the toilet bowl in the closed state) and the front surface of the casing housing the cleaning nozzle. In particular, when the toilet seat is in a closed state, the back surface of the toilet seat may adhere to a relatively large amount of dirt due to, for example, splashing of the water in the toilet bowl. Further, when a man urinates, since the toilet seat is in an open state, a relatively large amount of dirt may adhere to the front surface of the casing. On the other hand, there is a request to improve the cleanliness and ease of cleaning in the warm water washing toilet seat device.
The present invention has been made to solve the above-described problems, and it is an object of the present invention to improve cleanliness and ease of cleaning in a warm water washing toilet seat apparatus.

  In order to solve the above problems, a warm water cleaning toilet seat device according to claim 1 is provided on the upper surface of a seat-type toilet having a toilet bowl, and a casing that stores therein a cleaning nozzle for cleaning a user's local part. A toilet seat with a water-washable toilet seat that is openably and closably supported in front of the casing, wherein the toilet seat is formed of a material having a contact angle with water of 90 ° or more, and is formed on the outer surface of the toilet seat. Of these, when the toilet seat is in the closed state, the back surface, which is the surface on the side of the sitting-type toilet, has a water-repellent treatment that forms fine irregularities, thereby increasing the contact angle and emphasizing water repellency. Is formed.

  According to this, the toilet seat water repellent treatment unit enhances the water repellency by increasing the contact angle with the water on the back surface of the toilet seat. Therefore, compared with the case where the toilet seat water repellent portion is not formed, the adhesion of dirt reaching the back surface of the toilet seat is suppressed, and the dirt can be easily wiped off. Therefore, the cleanliness and ease of cleaning of the warm water washing toilet seat device can be improved.

It is a side view which shows the state by which the warm water washing toilet seat apparatus which concerns on one Embodiment by this invention is installed in the seat type toilet bowl. FIG. 2 is a partially enlarged side view of the casing and the seat-type toilet shown in FIG. 1. It is sectional drawing along the III-III line shown in FIG. 2, and has shown sectional drawing of the seat-type toilet and the front view of a casing. It is the elements on larger scale which show the rod shape of the fine uneven | corrugated shape of the casing water-repellent processing part shown in FIG. It is the elements on larger scale which show the fine uneven | corrugated shape of the casing water-repellent processing part shown in FIG. 3, and has shown the state which the droplet reached | attained the casing water-repellent processing part. It is a front view which shows the warm water washing toilet seat apparatus shown in FIG. 1, and represents the case where a toilet seat is an open state. It is the elements on larger scale which show the fine unevenness | corrugation shape of the casing water-repellent treatment part of the warm water washing toilet seat apparatus which concerns on other embodiment by this invention, or a toilet seat water-repellent treatment part.

  Hereinafter, an embodiment of a warm water washing toilet seat device 1 according to the present invention will be described. In the present specification, for convenience of explanation, the upper side and the lower side in FIG. 1 are the upper and lower sides of the hot water washing toilet seat device 1, respectively, and the left side and the right side are the front and rear sides of the hot water washing toilet seat device 1, respectively. In addition, the front side of the paper will be described as the left side and the right side of the warm water washing toilet seat device 1 respectively. 1 to 3 and FIG. 6 show arrows indicating the respective directions.

  As shown in FIG. 1, the warm water washing toilet seat device 1 is attached to an upper surface 2 a of a sitting toilet 2. The seat-type toilet 2 has a toilet bowl 2b. The warm water cleaning toilet seat device 1 includes a main body 10, a toilet seat 20, and a toilet lid 30.

  The main body 10 includes at least a casing 11, a cleaning nozzle (not shown) for cleaning a user's local part, and a control device (not shown) for overall control of the hot water cleaning toilet seat device 1. The cleaning nozzle and the control device are housed in the casing 11.

  The casing 11 is formed in a hollow box shape. The casing 11 is formed of a material having a contact angle with water of 90 ° or more. The casing 11 is formed by injection molding using polypropylene resin in this embodiment. As shown in FIGS. 1 and 2, the front end of the casing 11 is disposed so as to cover the rear end of the toilet bowl 2b. Moreover, the outer surface of the front-end part of the casing 11 has the inclination part 11a formed so that it might incline toward the toilet bowl part 2b, as shown in FIG. Specifically, the inclined portion 11a is formed so as to be inclined downward from above as it goes from the rear to the front. In the present embodiment, the inclined portion 11a is formed so as to be inclined linearly in a side view. Furthermore, the front end of the inclined portion 11a is formed in a shape that is cut off substantially vertically in a side view.

  In addition, a casing water-repellent treatment part 40 and a casing non-water-repellent treatment part 50 are formed in the inclined part 11a. The casing water repellent portion 40 is a portion of the inclined portion 11a that has been subjected to a water repellent treatment that is a treatment for repelling water. Specifically, as shown in FIG. 3, the casing water repellent portion 40 is formed from the rear end to the front end of the inclined portion 11a, and has a width in the left-right direction as it goes from the rear end to the front end of the inclined portion 11a. Is formed so as to be gradually narrowed. Moreover, the front end of the casing water-repellent treatment part 40 is formed so as to face the toilet bowl 2b. A boundary portion 40a between the casing water-repellent treatment portion 40 and the casing non-water-repellent treatment portion 50 is formed so as to go to the toilet bowl portion 2b from the rear end to the front end of the inclined portion 11a.

  Further, when the droplet L (see FIG. 5) having a size equal to or larger than a predetermined size (for example, 1 mL) arrives, the casing water repellent treatment unit 40 removes the droplet L from the inclined portion 11a (casing 11). Move downward along the surface (described later). The droplet L is washing water scattered by washing with a urine or a washing nozzle, for example.

  The water repellent treatment is a treatment for forming the fine uneven shape 41 shown in FIG. 4 on the outer surface of the object. The fine concavo-convex shape 41 is formed to have a sufficiently small size with respect to the size of the droplet L. The fine concavo-convex shape 41 is formed by a plurality of bar shapes 41a protruding in a bar shape from the outer surface. In the present embodiment, as shown in FIG. 4, the bar shape 41 a is a shape that protrudes from the outer surface in a cylindrical shape and chamfers the corner of the tip. The bar shape 41a has an aspect ratio (= height A / width direction length B), which is a ratio of the height A to the width direction length B of the bar shape 41a, set to 1 or more. In the present embodiment, the bar shape 41a is a shape in which the height A is approximately 5 μm and the width direction length B is approximately 5 μm. Further, the distance P between the central axes of the rod shapes 41a is set to a sufficiently short distance with respect to the size of the droplet L (approximately 10 μm in the present embodiment). Accordingly, the rod shape 41a can reduce the contact area with the droplet L and secure a sufficient air layer below the droplet L supported by the rod shape 41a. The plurality of bar shapes 41a are formed at the time of injection molding of the casing 11, for example, by forming a plurality of shapes obtained by inverting the bar shape 41a in a mold.

  As an index indicating the water repellent effect, there is a contact angle with water. In general, when compared with the shape of the same outer surface, the smaller the surface energy specific to the material, the larger the contact angle with water. The larger the contact angle with water, the higher the water repellent effect. In the case where a plurality of rod shapes 41a are formed as a water repellent treatment on a material having a contact angle with water of 90 ° or more, the contact angle with water of the portion subjected to the water repellent treatment can be increased. The contact angle with water of the polypropylene resin, which is the material of the casing 11 in this embodiment, is approximately 100 °, and the contact angle θ with water (see FIG. 5) at the portion subjected to the water repellent treatment is approximately 150 ° at the maximum. It becomes. Therefore, the water repellent effect of the casing 11 can be enhanced. That is, the casing water-repellent treatment unit 40 enhances the water repellency by increasing the contact angle with water by the water-repellent treatment that forms the fine uneven shape 41.

  In addition, as another water repellent treatment, a treatment in which a polypropylene resin is impregnated with a silicon resin or a fluororesin having a low surface energy in a state where the outer surface is relatively flat (a state in which the plurality of rod shapes 41a are not formed) is performed. is there. The contact angle with water at the site subjected to this treatment is approximately 120 ° at the maximum. That is, as the water-repellent treatment applied to the polypropylene resin, the water-repellent effect can be enhanced by forming the fine irregularities 41 (plural bar shapes 41a) rather than impregnating with a fluororesin or the like.

  The casing non-water repellent part 50 is a part formed adjacent to the casing water repellent part 40 in the inclined part 11a. The casing non-water-repellent treatment part 50 is a part that is not subjected to the water-repellent treatment in the inclined part 11a. That is, the casing non-water-repellent treatment part 50 is not formed with the fine uneven shape 41 (a plurality of rod shapes 41a) described above.

  The toilet seat 20 and the toilet lid 30 are supported in front of the casing 11 so as to be openable and closable. Note that the toilet seat 20 and the toilet lid 30 indicated by solid lines in FIG. 1 indicate a closed state, and the toilet seat 20 and the toilet lid 30 indicated by broken lines in FIG. 1 indicate an open state. The outline of the toilet seat 20 and the toilet lid 30 are formed of a material having a contact angle with water of 90 ° or more. The outline of the toilet seat 20 and the toilet lid 30 are formed by injection molding using polypropylene resin in the present embodiment.

  As shown in FIG. 6, four leg portions 21 are arranged on the back surface 20 a of the toilet seat 20. The back surface 20a of the toilet seat 20 is a surface on the sitting toilet 2 side when the toilet seat 20 is in a closed state among the outer surfaces of the toilet seat 20. The leg 21 is in contact with the upper surface 2a when the toilet seat 20 is in the closed state. The leg portion 21 is made of, for example, a thermoplastic elastomer resin.

  Further, on the back surface 20a of the toilet seat 20, a toilet seat water repellent treatment portion 60 subjected to the above-described water repellent treatment is formed. That is, the toilet seat water-repellent treatment part 60 was subjected to water-repellent treatment by a process of forming fine uneven shapes 41 (a plurality of rod shapes 41a) that are sufficiently small with respect to the size of the droplet L that reached the back surface 20a of the toilet seat 20. It is a part. The leg portion 21 is not subjected to water repellent treatment. That is, the toilet seat water repellent treatment unit 60 enhances the water repellency by increasing the contact angle with water by the water repellent treatment that forms the fine uneven shape 41.

  Next, the movement of the droplet L when the droplet L reaches the casing water-repellent treatment unit 40 in the warm water washing toilet seat apparatus 1 described above will be described. For example, when a man urinates with the toilet seat open, the droplet L reaches the casing water repellent portion 40.

  When the droplet L reaches the central portion in the left-right direction of the casing water-repellent treatment portion 40, the droplet L is caused by its own weight due to the water-repellent effect of the casing water-repellent treatment portion 40, and the outer surface of the casing 11 (inclined portion 11a). Along the line (in the direction of arrow D1 in FIGS. 2 and 3). And the droplet L is derived | led-out to the stool part 2b (refer arrow D2 of FIG. 2 and FIG. 3).

  Further, when the droplet L reaches the left and right side portions of the casing water repellent treatment unit 40, the droplet L is self-weighted due to the water repellent effect of the casing water repellent treatment unit 40, and the casing 11 (inclined portion 11 a). It moves downward (in the direction of arrow D3 in FIG. 3) along the outer surface and reaches the boundary 40a. Since the casing non-water-repellent treatment part 50 is not subjected to the water-repellent treatment, the casing water-repellent treatment part 40 has a lower surface resistance than the casing non-water-repellent treatment part 50. Therefore, the droplet L does not flow into the casing non-water-repellent treatment part 50, but moves downward (in the direction of arrow D4 in FIG. 3) along the boundary part 40a. And the droplet L is derived | led-out to the stool part 2b (refer arrow D2 of FIG. 2 and FIG. 3). As described above, the boundary portion 40a is formed so as to guide the droplet L to the stool portion 2b when the droplet L moves downward.

According to the present embodiment, the warm water cleaning toilet seat device 1 is disposed on the upper surface 2a of the seat-type toilet 2 having a toilet bowl 2b, and a casing 11 that stores therein a cleaning nozzle for cleaning a user's local part, A toilet seat apparatus 1 having a toilet seat 20 supported in front of the casing 11 so as to be openable and closable, wherein the toilet seat 20 is formed of a material having a contact angle with water of 90 ° or more. Of the outer surface of the toilet seat 20 when the toilet seat 20 is in a closed state, the back surface 20a, which is the surface on the seat-type toilet 2 side, has a water repellent treatment with a larger contact angle by a water repellent treatment that forms a fine uneven shape 41. A toilet seat water repellent treatment portion 60 is formed to emphasize the above.
According to this, the toilet seat water repellent treatment unit 60 enhances the water repellency by increasing the contact angle of the back surface 20a with water. Therefore, as compared with the case where the toilet seat water repellent portion 60 is not formed, adhesion of dirt that has reached the back surface 20a of the toilet seat is suppressed, and the dirt can be easily wiped off. Therefore, the cleanliness and ease of cleaning of the warm water washing toilet seat device can be improved.
Further, in a portion where water flows on the surface during use, such as a washing nozzle, a shape having a water repellency lower than a fine uneven shape like a V-shaped groove of the prior art can be used. In addition, in a relatively dry part, it is more effective to make the droplet L easier to wipe by giving a fine uneven shape to the outer surface and increasing the contact angle with the droplet L.

The casing 11 is formed of a material having a contact angle with water of 90 ° or more, and the outer surface on the front side of the casing 11 is water-repellent to increase the contact angle and emphasize water repellency. A casing water repellent treatment part 40 is formed.
According to this, the casing water-repellent treatment unit 40 enhances the water repellency by increasing the contact angle with the water on the front outer surface of the casing 11. Therefore, compared with the case where the casing water-repellent processing part 40 is not formed, the adhesion of the dirt reaching the outer surface on the front side of the casing 11 is suppressed, and the dirt can be easily wiped off. Therefore, the cleanliness and ease of cleaning of the warm water washing toilet seat device can be improved.

Further, the front end portion of the casing 11 is disposed so as to cover the rear end portion of the toilet bowl portion 2b, and the outer surface of the front end portion of the casing 11 is inclined toward the toilet bowl portion 2b and is subjected to water repellent treatment. The casing water-repellent treatment part 40 and the casing non-water-repellent treatment part 50 not subjected to water-repellent treatment have an inclined part 11a formed adjacent to each other, and the casing water-repellent treatment part 40 has a predetermined size or more. When the droplet L having a size of 1 is reached, the droplet L is moved downward along the outer surface of the casing 11, and the boundary portion 40a between the casing water-repellent treatment portion 40 and the casing non-water-repellent treatment portion 50 is When the droplet L moves downward, the droplet L is formed so as to be guided to the stool portion 2b.
According to this, when the droplet L having a size equal to or larger than the predetermined size arrives, the casing water repellent treatment unit 40 moves the droplet L downward along the outer surface of the casing 11 (inclined portion 11a). The boundary part 40a of the casing water-repellent treatment part 40 guides the droplet L to the toilet bowl part 2b. Thereby, the droplet L is guided to the toilet bowl 2b. Therefore, it is possible to suppress the droplet L having a size larger than a predetermined size from adhering to the casing water repellent treatment unit 40. Therefore, the cleanliness and ease of cleaning of the warm water washing toilet seat device 1 can be improved.

Furthermore, since the droplet L is not dried on the outer surface of the casing 11 by being led to the toilet bowl 2b, it does not remain as dirt on the outer surface of the casing 11. Therefore, the frequency | count of cleaning of the warm water washing toilet seat apparatus 1 by a user can be suppressed.
Further, the water contact angle of the casing water repellent treatment unit 40 is larger than the water contact angle of the casing non-water repellent treatment unit 50. Therefore, even when a droplet smaller than a predetermined size reaches the casing water-repellent treatment unit 40, the user can easily wipe off the droplet, and thus the ease of cleaning of the warm water washing toilet seat device 1 is improved. be able to.

The fine uneven shape 41 is formed by a plurality of bar shapes 41a.
As described above, the plurality of bar shapes 41 a are formed by injection molding the toilet seat 20 or the casing 11. Therefore, the fine uneven shape 41 can be easily formed compared to the case where a paint is applied to the outer surface of the material or the material is impregnated with a fluororesin or the like in order to perform the water repellent treatment.

  In addition, in embodiment mentioned above, although an example of the warm water washing toilet seat apparatus was shown, this invention is not limited to this, Another structure can also be employ | adopted. For example, in the above-described embodiment, the fine concavo-convex shape 41 is a plurality of bar shapes 41a, but instead of this, a plurality of multiple layers in which granular resins having different sizes shown in FIG. You may make it form with the shape 41b. The multiple shape 41b is formed of a material (for example, polypropylene resin) having a contact angle with water of 90 ° or more. The multiple shape 41b is formed, for example, by spraying softened granular resin on the inclined portion 11a in descending order of diameter. The multiple shape 41b is formed, for example, by spraying granular resin having a diameter of about 40 μm and then spraying granular resin having a diameter of several nm.

Moreover, in embodiment mentioned above, although rod shape is formed in the column shape, it may replace with this and you may make it form in cone shape, prismatic shape, pyramid shape, and needle shape. Furthermore, in this embodiment, although the front-end | tip part is chamfered, you may make it not chamfer.
Further, in the above-described embodiment, the fine uneven shape 41 is formed by applying a shape obtained by inverting the fine uneven shape 41 to the mold. Instead, the fine uneven shape 41 is formed of a plurality of bars. The film on which the shape 41a or the multiple multiple shapes 41b are formed may be transferred to the inclined portion 11a. The film is formed of a material (for example, polypropylene resin or polyethylene terephthalate resin) having a contact angle with water of 90 ° or more.

  Furthermore, you may make it form the fine uneven | corrugated shape 41 by apply | coating the coating material containing multiple fine members which consist of the multiple shape 41b to the inclination part 11a. In this case, the fine member and the paint are formed of a material having a contact angle with water of 90 ° or more. The fine member is, for example, a polypropylene resin or a polyethylene terephthalate resin. The paint is, for example, silicon resin or fluorine resin.

In the above-described embodiment, the inclined portion 11a is formed so as to be inclined linearly in a side view, but instead, the entire portion where the casing water-repellent treatment portion 40 is formed in the inclined portion 11a. May be formed in a concave shape. According to this, the guide of the droplet L by the boundary part 40a can be made easy.
In the embodiment described above, the casing water repellent treatment part 40 is formed on the inclined part 11a, but the casing water repellent part 40 is also formed on the front surface of the casing 11 above the inclined part 11a. Also good.
Furthermore, within the range not departing from the gist of the present invention, the part and range for forming the casing water repellent part 40 and the toilet seat water repellent part 60, the shape of the bar shape 41a, and the multiple shape 41b may be changed.

  DESCRIPTION OF SYMBOLS 1 ... Warm water washing toilet seat apparatus, 2 ... Seat-type toilet, 2b ... Toilet bowl part, 10 ... Main part, 11 ... Casing, 11a ... Inclined part, 20 ... Toilet seat, 20a ... Back surface, 40 ... Casing water-repellent treatment part, 40a DESCRIPTION OF SYMBOLS ... Border part, 41 ... Fine uneven | corrugated shape, 41a ... Bar shape, 41b ... Multiple shape, 50 ... Casing non-water-repellent treatment part, 60 ... Toilet seat water-repellent treatment part, L ... Droplet.

Claims (4)

A hot water provided with a casing which is disposed on the upper surface of a seat-type toilet having a toilet bowl and houses a cleaning nozzle for cleaning a user's local part, and a toilet seat supported to be openable and closable in front of the casing Cleaning toilet seat device,
The toilet seat is formed of a material having a contact angle with water of 90 ° or more,
Of the outer surface of the toilet seat, when the toilet seat is in a closed state, the back surface, which is the surface on the side of the seat-type toilet, is subjected to water repellent treatment to form a fine uneven shape, thereby increasing the contact angle and repelling. A warm water cleaning toilet seat apparatus in which a toilet seat water repellent treatment portion for emphasizing water is formed. The casing is formed of a material having a contact angle of 90 ° or more,
The warm water washing toilet seat device according to claim 1, wherein a casing water repellent treatment portion that enhances the water repellency by increasing the contact angle is formed on the outer surface of the front side of the casing by the water repellent treatment. The front end of the casing is disposed so as to cover the rear end of the toilet bowl,
The outer surface of the front end portion of the casing is inclined toward the toilet bowl, and the casing water-repellent treatment portion and the casing non-water-repellent treatment portion not subjected to the water-repellent treatment are formed adjacent to each other. Has an inclined part,
The casing water-repellent treatment part moves the droplet downward along the outer surface of the casing when a droplet having a size equal to or larger than a predetermined size arrives.
The boundary portion between the casing water-repellent treatment portion and the casing non-water-repellent treatment portion is formed so as to guide the droplet to the stool portion when the droplet moves downward. Or the warm water washing toilet seat apparatus of Claim 2.   The warm water washing toilet seat device according to any one of claims 1 to 3, wherein the fine uneven shape is formed by a plurality of bar shapes.

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