JP7432169B1 - washing area floor - Google Patents

Abstract

[Problem] To provide an easy-to-use washing area floor. [Solution] A washing area floor having hydrophilic and oil-repellent properties and having an uneven surface, the surface includes an upper part, an inclined part that slopes downward from the upper part, and the inclined part. a groove located at the lowest position of the upper part, and when 1.0 mL of water is dropped onto the upper part from a position at a height of 150 mm from the upper part, the horizontal direction of the spreading surface of the water spread on the surface The longest length of is the first length, and when 0.05 mL of oil made of oleic acid is dropped onto the top from a position 50 mm above the top, the amount of the oil spread on the surface is When the longest length in the horizontal direction of the spreading surface is defined as the second length, the interval between adjacent groove portions with the upper portion sandwiched therebetween is equal to or less than the first length and greater than the second length. Features a washing area floor. [Selection diagram] Figure 4

Description

Aspects of the present invention generally relate to washroom floors.

A washing area floor is known that is provided with a groove that guides hot water toward a drain port (Patent Document 1).

Patent No. 5371337

On the washing area floor, hot water is collected in a groove and drained to the drain, which prevents hot water from remaining on the washing area floor for a long period of time. On the other hand, dirt such as sebum needs to be flushed down the drain with hot water. However, if sebum stains spread on the washing area floor, it may be difficult to flush the sebum stains down the drain with hot water.

The present invention was made based on the recognition of this problem, and an object of the present invention is to provide a washing area floor that is easy to use.

A first aspect of the present invention is a washing area floor having hydrophilicity and oil repellency and having an uneven surface, the surface including an upper part, an inclined part that slopes downward from the upper part, and a washing area floor having an uneven surface. a groove located at the lowest position of the inclined part, and when 1.0 mL of water is dropped onto the upper part from a position at a height of 150 mm from the upper part, the spreading surface of the water spread on the surface. The longest length in the horizontal direction is defined as the first length, and when 0.05 mL of oil made of oleic acid is dropped onto the upper part from a position at a height of 50 mm from the upper part, the above-mentioned oil that spreads on the surface When the longest length in the horizontal direction of the oil spreading surface is defined as the second length, the interval between the grooves adjacent to each other across the upper part is equal to or less than the first length and larger than the second length. This is a washing area floor that is characterized by:

According to this washing area floor, water spreads more widely than the uneven pattern, and oil made of oleic acid (sebum dirt) stays in a narrower area than the uneven pattern. Thereby, it is possible to provide a washing area floor that allows the spread water to efficiently transport oil to the groove. Sebum stains on the human body spread wider than the uneven pattern, and if they get into the grooves and stick to them, a lot of water is needed to wash away the sebum stains.If the amount of water to wash away is small, the sebum stains remain in the grooves. There is a risk of it getting lost. Therefore, on the washing area floor, sebum stains do not spread widely and stay smaller than the uneven pattern, and water spreads widely and spreads out more than the uneven pattern. As a result, sebum dirt can be carried along with water from the groove to the drain.

A second invention is the washing area floor according to the first invention, characterized in that the distance between the grooves that are adjacent to each other with the upper part interposed therebetween is greater than 11 mm and less than 27 mm.

According to this washing area floor, sebum stains do not spread widely and stay smaller than the uneven pattern, and water spreads widely and spreads more than the uneven pattern. This allows sebum dirt to be carried along with water from the groove to the drain.

According to the aspect of the present invention, it is possible to provide a washing area floor that is easy to use.

FIG. 1 is a perspective view showing a bathroom unit including a wash area floor according to an embodiment. FIG. 3 is a plan view of the washing area floor seen from above. FIG. 3 is a sectional view of the washing area floor in FIG. 2 viewed from the direction of arrow AA. FIG. 3 is a plan view showing the spread state of water dropped on the upper part of the washing area floor. FIG. 5 is a sectional view of the washing area floor in FIG. 4 viewed from the direction of arrow BB. It is a table showing data on the spreading length of water dropped on the washing area floor. FIG. 3 is a plan view showing how oil dripped on the upper part of the washing area floor is spread. FIG. 8 is a cross-sectional view of the washing area floor in FIG. 7 viewed from the direction of arrow CC. It is a table showing data on the spread length of oil dropped on the washing area floor.

Hereinafter, embodiments will be described with reference to the drawings. Note that in each drawing, similar components are denoted by the same reference numerals, and detailed explanations are omitted as appropriate.
FIG. 1 is a perspective view showing a bathroom unit including a washing area floor according to an embodiment.
As shown in FIG. 1, the bathroom unit 1 includes a washing area floor 10, a bathtub 90, and wall panels 96a to 96f.

A washing area floor 10 is installed in a space next to the bathtub 90. The surface 20 of the washing area floor 10 has a waterproof property that prevents water from leaking outside the bathroom. Furthermore, the surface 20 of the washing area floor 10 has hydrophilicity and oil repellency. Note that in the present specification, the term "water" includes not only cold water but also heated hot water.

On the back side (lower side) of the washing area floor 10, a drainage pipe 92 is provided near the boundary with the bathtub 90. In the washing area floor 10, for example, a drainage port 10h communicating with a drainage pipe 92 is formed near the boundary with the bathtub 90. The part where the drain port 10h is provided is depressed downward, and the surface 20 of the washing area floor 10 is provided with a drainage slope that slopes downward toward the drain port 10h. Further, a drain port (not shown) provided at the bottom of the bathtub 90 is also connected to the drain pipe 92. The angle of inclination of the drainage slope with respect to the horizontal is, for example, 1.1 degrees.

A bath apron 94 is provided at the boundary between the bathtub 90 and the washing area floor 10 to cover the side surface of the bathtub 90 on the washing area floor 10 side. Note that depending on the structure of the bathtub 90, the bath apron 94 may not be provided.

As shown by the two-dot chain line in FIG. 1, wall panels 96a to 96c are installed on the rim of the bathtub 90. Additionally, wall panels 96d to 96f are installed on the peripheral edge of the washing area floor 10. Further, a door is attached to the wall panel 96f via a door attachment frame (not shown).

FIG. 2 is a plan view of the washing area floor seen from above.
FIG. 3 is a sectional view of the washing area floor in FIG. 2 viewed from the direction of arrow AA.
The surface 20 of the washing area floor 10 is formed in an uneven shape. As shown by arrows in FIG. 2, the surface 20 of the washing area floor 10 has a drainage slope formed toward the drainage port 10h. Thereby, water adhering to the surface 20 of the washing area floor 10 flows to the drain port 10h.

The surface 20 of the washing area floor 10 has hydrophilicity and oil repellency by surface treatment. The surface 20 of the washing area floor 10 has, for example, a hydrophilic group, so that water is adapted to the surface 20. That is, the water on the surface 20 of the washing area floor 10 tends to spread into a film. Further, the surface 20 of the washing area floor 10 has an oil-repellent group, for example, so that it easily repels oil (sebum stains). Note that the washing area floor 10 may have hydrophilicity and oil repellency due to the uneven shape of the surface 20 and the drainage slope.

The surface 20 of the washing area floor 10 has oil repellency so that sebum stains are difficult to adhere to. Then, the sebum stains are flushed away together with the water toward the drain port 10h as the water that spreads in a film enters between the surface 20 and the sebum stains. As a result, the surface 20 of the washing area floor 10 is less susceptible to sebum stains.

The surface 20 of the washing area floor 10 has an upper part 21, an inclined part 23 which slopes downward from the upper part 21, and a groove part 25 located at the lowest position of the inclined part 23. The surface 20 is formed into an uneven shape by a plurality of upper parts 21, inclined parts 23, and groove parts 25 being continuous.

The upper part 21 is the highest position of the inclined part 23. That is, the upper part 21 is the highest position between the adjacent groove parts 25 when the washing area floor 10 is kept horizontal. In this example, the upper portion 21 is the midpoint between adjacent grooves. The inclined portion 23 is a curved surface that smoothly curves upward from the upper portion 21 toward the groove portion 25 in a convex shape. The inclined portion 23 of the surface 20 allows a cleaning tool such as a sponge to easily enter the groove portion 25.

The surface 20 is formed, for example, in a lattice shape by a plurality of grooves 25. The groove portion 25 extends, for example, in a direction parallel to the bathtub 90 (left-right direction) and in a direction perpendicular to the bathtub 90 (front-back direction). The water on the upper part 21 and the sloped part 23 flows into the groove part 25 due to the slope of the sloped part 23. The water flowing into the groove 25 is guided to the drain port 10h by the drainage slope. The distance L between adjacent groove portions 25 with the upper portion 21 in between is, for example, the same value in the front-rear direction and the left-right direction.

Here, for example, if sebum dirt adheres to the groove 25, it may become difficult to flush the sebum dirt together with water into the drain port 10h. Therefore, it is preferable that sebum stains flow into the grooves 25 together with water. Therefore, on the surface 20 of the washing area floor 10, the intervals between adjacent grooves 25 are set such that only sebum dirt remains in the grooves 25.

FIG. 4 is a plan view showing the spread state of water dropped on the upper part of the washing area floor.
FIG. 5 is a sectional view of the washing area floor in FIG. 4 viewed from the direction of arrow BB.
FIG. 6 is a table showing data on the spreading length of water dropped onto the washing area floor.
FIG. 7 is a plan view showing how oil dripped on the upper part of the washing area floor spreads.
FIG. 8 is a sectional view of the washing area floor in FIG. 7 viewed from the direction of arrow CC.
FIG. 9 is a table showing data on the spread length of oil dropped on the washing area floor.

Sebum stains wash away with water when it comes into contact with the user's head or body from showers or other showers. In this case, sebum stains often travel down the user's head and body together with water and fall onto the surface 20 of the washing area floor 10 from a relatively low position (for example, the ankle). Furthermore, the amount of sebum stains is smaller than the amount of water. On the other hand, water from a shower or the like not only flows along the user's head and body, but also often falls onto the surface 20 from below the user's knees or from a height such as a chair in a washing area. Furthermore, the amount of water is greater than the amount of sebum stains.

The intervals between the grooves 25 are set assuming such an actual usage environment. In the case of water W, the spread is measured when 1.0 mL of water W is dropped onto the surface 20 from a height of 150 mm from the top 21 of the surface 20. Moreover, for sebum stains, oil O made of oleic acid is used, which is intended for sebum stains. In the case of oil O, the spread is measured when 0.05 mL of oil O is dropped onto the surface 20 from a height of 50 mm from the top 21 of the surface 20. That is, for sebum stains (oil O), the dripping height is lower than the conditions under which water W is dripped, and the dripping amount is reduced, assuming a practical use environment. Note that this measurement was conducted at room temperature (20° C. to 25° C.) with the washing area floor 10 held horizontally.

First, the spread of water W on the surface 20 of the washing area floor 10 will be explained with reference to FIGS. 4 to 6.

As shown in FIGS. 4 and 5, the dropping device 50 drops water W from a position at a height H from the upper part 21 of the surface 20. As shown in FIGS. The height H is 150 mm. The dropping device 50 drops water droplets of, for example, 0.1 mL for 10 seconds. Thereby, the dropping device 50 causes a total of 1.0 mL of water W to adhere to the upper portion 21. After the water W dripped from the dripping device 50 adheres to the upper part 21, the water droplets combine with each other and spread due to the hydrophilicity of the surface 20 and the slope of the slope portion 23. The water W spreading on the surface 20 becomes stable in about 10 seconds after the water W finishes dropping.

Let the longest length in the horizontal direction of the spreading surface of the water W spread on the surface 20 be a first length Wm. In this case, the interval L between the groove portions 25 adjacent to each other with the upper portion 21 in between is equal to or less than the first length Wm (L≦Wm). That is, the surface 20 of the washing area floor 10 has hydrophilic properties and sloped portions 23 such that water W reaches the groove portion 25 when 1.0 mL of water is dropped from a height of 150 mm from the upper portion 21. ing.

FIG. 6 shows data when 1.0 mL of water W was dropped toward the upper portion 21 five times. As shown in this data, the first length Wm is 27 mm or more and 35 mm or less (average of 5 times: 30.4 mm).

Next, the spread of oil O on the surface 20 of the washing area floor 10 will be explained with reference to FIGS. 7 to 9.

As shown in FIGS. 7 and 8, the dropping device 50 drops the oil O from a position at a height H from the upper part 21 of the surface 20. As shown in FIGS. The height H is 50 mm. The dropping device 50 drops, for example, 0.05 mL of oil O. The oil O dripped from the dripping device 50 adheres to the upper portion 21 and then spreads due to the oil repellency of the surface 20 and the slope of the slope portion 23 . The oil O spreading on the surface 20 becomes stable in about 10 seconds after the dropping of the oil O ends.

The longest horizontal length of the spreading surface of the oil O on the surface 20 is defined as a second length Om. In this case, the interval L between the groove portions 25 adjacent to each other with the upper portion 21 in between is larger than the second length Om (L>Om). That is, the surface 20 of the washing area floor 10 has oil repellency and an inclined portion 23 that prevents oil O from reaching the groove portion 25 when 0.05 mL of oil O is dropped from a height of 50 mm from the upper portion 21. are doing.

FIG. 9 shows data when 0.05 mL of oil O was dropped toward the upper portion 21 five times. As shown in this data, the second length Om is 10 mm or more and 11 mm or less (average of 5 times: 10.2 mm).

The distance L between adjacent groove portions 25 with the upper portion 21 in between is less than or equal to the first length Wm and greater than the second length Om. Specifically, the distance L between adjacent groove portions 25 with the upper portion 21 in between is greater than 11 mm and less than 27 mm.

Thereby, the washing area floor 10 can mix sebum dirt with water on the slope part 23, and then flow the water and sebum dirt together into the groove part 25. That is, on the surface 20 of the washing area floor 10, most of the sebum dirt is mixed with water on the slope part 23, and the sebum dirt is placed on the spread of the water due to the hydrophilic property, and can be drained from the groove part 25 to the drain port 10h. Therefore, the washing area floor 10 can reduce the amount of sebum dirt remaining in the grooves 25.

In the embodiment, the case where the inclined portion 23 is an upwardly convex curved surface has been described as an example. However, the aspect of the present invention is not limited to this, and for example, the slope portion may be sloped linearly from the upper portion 21 toward the groove portion 25. Moreover, the upper part may be a flat surface.

Embodiments may include the following configurations.
(Configuration 1)
A washing area floor that is hydrophilic and oil repellent and has an uneven surface,
The surface is
The upper part and
a sloped portion that slopes downward from the top;
a groove portion located at the lowest position of the inclined portion;
Equipped with
When 1.0 mL of water is dropped onto the upper part from a position with a height of 150 mm from the upper part, the longest length in the horizontal direction of the spreading surface of the water spread on the surface is the first length. ,
When 0.05 mL of oil made of oleic acid is dropped onto the upper part from a position at a height of 50 mm from the upper part, the longest length in the horizontal direction of the spreading surface of the oil spread on the surface is determined as If the length is 2,
A washing area floor characterized in that an interval between adjacent groove portions with the upper portion interposed therebetween is equal to or less than the first length and greater than the second length.
(Configuration 2)
The washing area floor according to configuration 1, wherein an interval between adjacent groove portions with the upper portion interposed therebetween is greater than 11 mm and less than or equal to 27 mm.

The embodiments of the present invention have been described above. However, the invention is not limited to these descriptions. Appropriate design changes made by those skilled in the art with respect to the above-described embodiments are also included within the scope of the present invention as long as they have the characteristics of the present invention. For example, the shape, size, material, arrangement, etc. of each element included in the washing area floor etc. are not limited to those illustrated and can be changed as appropriate. Furthermore, the elements of each of the embodiments described above can be combined to the extent technically possible, and combinations of these are also included within the scope of the present invention as long as they include the features of the present invention.

1 Bathroom unit 10 Washing area floor 10h Drain port 20 Surface 21 Upper part 23 Inclined part 25 Groove part 50 Dripping device 90 Bathtub 92 Drainage pipe 94 Bath apron 96a-96f Wall panel O Oil W Water

Claims (2)

A washing area floor that is hydrophilic and oil repellent and has an uneven surface,
The surface is
The upper part and
a sloped portion that slopes downward from the top;
a groove portion located at the lowest position of the inclined portion;
Equipped with
When 1.0 mL of water is dropped onto the top from a position with a height of 150 mm from the top, the longest length in the horizontal direction of the spreading surface of the water spread on the surface is the first length. ,
When 0.05 mL of oil made of oleic acid is dropped onto the upper part from a position at a height of 50 mm from the upper part, the longest length in the horizontal direction of the spreading surface of the oil spread on the surface is determined as If the length is 2,
A washing area floor characterized in that an interval between adjacent groove portions with the upper portion interposed therebetween is equal to or less than the first length and larger than the second length. 2. The washing area floor according to claim 1, wherein an interval between adjacent groove portions with the upper portion interposed therebetween is greater than 11 mm and less than 27 mm.

Images