Bath mat / mat using waste heat of shower hot water
By redirecting shower water to flow horizontally across the bath mat, which incorporates heat rise holes, the waste heat is efficiently transferred into the bathroom, addressing the issue of cold bathrooms and eliminating the need for additional heating sources.
Patent Information
- Application Number
- JP2023218643
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-12-07
- Publication Date
- 2025-06-19
AI Technical Summary
Bathrooms, especially in winter, tend to be cold and prone to heat shock, with existing bath mats and floor mats not utilizing the waste heat from shower water, thus requiring energy-consuming heating equipment.
The bath mat design features a higher side near the drain and heat rise holes, causing shower water to flow horizontally and then drain underneath or around the mat, transferring waste heat into the bathroom and around the human body.
This solution effectively increases the bathroom temperature using waste heat from shower water, providing a more comfortable shower experience without the need for additional energy sources, thereby reducing the risk of heat shock.
Smart Images

Figure 2025092312000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a bath mat and a floor mat that utilize the waste heat of the warm water of the shower to make the temperature around the human body in the bathroom more comfortable without newly inputting energy in order to achieve a good shower bath.
Background Art
[0002] It is known that general bath mats and floor mats primarily drain warm water to the drain. Also, known bath mats and floor mats do not assume the utilization of the waste heat of the warm water of the shower.
Summary of the Invention
Problems to be Solved by the Invention
[0003] Especially in winter, the bathroom is cold and prone to heat shock. Also, for heating equipment, it is common to blow warm air from the ceiling and the upper part of the wall, which is not a comfortable environment. Furthermore, to use heating equipment, an energy source such as expensive fossil fuels is required. The object of the present invention is to make the temperature around the human body in the bathroom more comfortable without newly inputting energy.
Means for Solving the Problems
[0004] The bath mat 1 according to the present invention has a portion where the side of the drain is higher and a member 3 arranged on the surface of the mat in contact with the floor, and the warm water of the shower is primarily made to flow horizontally or in the direction opposite to the drain. The warm water that has flowed horizontally or to the opposite side then secondarily flows to the drain through under the mat or around the mat. During this time, the waste heat of the warm water of the shower moves from the heat rising holes 2 and around the mat to the inside of the bathroom and around the human body, making the temperature more comfortable.
[0005] The bath mat 4 according to the present invention has the upper part of the outer periphery of the mat horizontal or provided with an enclosure having a reverse gradient to the floor gradient towards the drain groove. After storing the warm water of the shower, it overflows and flows in all directions primarily, or in the direction opposite to the drain outlet. The overflowed warm water flows secondarily to the drain outlet through the periphery of the mat. During this process, the waste heat of the warm water of the shower is transferred to the inside of the bathroom and around the human body to make the temperature more comfortable.
Effect of the Invention
[0006] In the present invention, by utilizing the waste heat of the warm water of the shower that has not been immediately utilized by flowing into the drain outlet, the temperature inside the bathroom and around the human body can be surely increased, and a more comfortable shower bath can be taken. In addition, it becomes an environment where it is difficult to cause heat shock. Since the waste heat of the warm water of the shower is utilized, no new energy source is required.
Brief Explanation of the Drawings
[0007]
Figure 1
Figure 2
Figure 3
Figure 4
Mode for Carrying Out the Invention
[0008] At the lower part of the bath mat 1 in FIG. 1, a part 3 that raises the drain outlet side in FIG. 2 is arranged at an angle. Thereby, the upper part of the bath mat 1 has a gradient opposite to the floor gradient or is horizontal. When the member is a rod-shaped member such as the part 3 that raises the drain outlet side in FIG. 2, several places are arranged, and when arranging hemispherical objects with different heights, dozens of places are arranged at an angle.
Explanation of Reference Numerals
[0009] 1 Bath mat body 2 Heat rise hole 3 Part, member that raises the drain outlet side 4 Tatami mat body 5 Tatami mat surrounding part
Claims
1. When utilizing the waste heat of the hot water in the shower, in order to temporarily retain the hot water in the bathroom, a part with an angle is arranged on the surface in contact with the floor so that the hot water of the shower flows horizontally or is angled to flow primarily on the side opposite to the drain outlet. A bath mat characterized by this.
2. When utilizing the waste heat of the hot water in the shower, in order to temporarily retain the hot water in the bathroom, an enclosure with an angle at the top is arranged so that the hot water of the shower flows horizontally or is angled to flow primarily on the side opposite to the drain outlet. A bath mat for primarily storing the waste heat of the hot water in the shower.