JPH0749014B2 - Air mat - Google Patents

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to an air mat.

2. Description of the Related Art A conventional air mat of this type includes a mat 1 having an air bag inside, a duct 2, a pressure adjusting device 3 having an air pump and a pressure setting knob 4 as shown in FIG. The user manually adjusted the pressure setting knob 4 so that the mat 1 had a desired hardness.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-mentioned configuration, since the room temperature changes in summer and winter, the hardness of the preferred mat also changes. Therefore, the hardness of the mat is set by the pressure setting knob 4 every season. There was an inconvenience that it had to be adjusted. Also, especially in the summer season, the pressure setting knob 4 is used to set the mat to a stiffer setting to promote ventilation in the bed, but it is hot, so when you open the window and go to bed, it will cool in the morning and the ventilation in the bed will be reduced. There was a problem that it was promoted too much and caused sleepiness.

The present invention solves such a conventional problem, and an object of the present invention is to provide an air mat capable of automatically adjusting the hardness of the mat according to the room temperature.

Means for Solving the Problems In order to solve the above problems, the air mat of the present invention has a temperature sensor and a pressure adjusting device for increasing or decreasing the supply air pressure to the mat body based on a signal from the temperature sensor. is there.

Action The present invention has the above-described configuration, and automatically adjusts the hardness of the mat body based on the temperature detected by the temperature sensor to enable proper ventilation in the bed.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a principle configuration diagram of the air mat, and FIG. 2 is a perspective view of the air mat. Reference numeral 1 is a mat having a bag-like container into which air can be injected, 2 is a duct, and 6 is a temperature sensor for detecting the room temperature around a pressure adjusting device 7 for adjusting the pressure of air supplied to the mat 1. Here, the pressure adjusting device 7 includes an air pump 8 for supplying air to the mat 1, a motor-operated valve 9, a pressure sensor 10 for detecting the air pressure in the mat 1, and a signal from the temperature sensor 6 based on signals from the mat 1 It comprises a calculation unit 11 for calculating the set pressure inside, and a control unit 12 for controlling the drive of the air pump 8 and the motor-operated valve 9 based on signals from the pressure sensor 10 and the calculation unit 11.

In the above configuration, when the temperature sensor 6 detects the room temperature T, the calculation unit 11 calculates the set pressure Pm in the mat based on the relationship shown in FIG. Here, as shown in FIG. 3, the set air pressure Pm in the mat becomes higher as the room temperature T becomes higher. Next, the control unit 12 controls the drive of the air pump 8 and the motor-operated valve 9 so that the air pressure P in the mat detected by the pressure sensor 10 becomes the set air pressure Pm. For example, since the set pressure Pm rises when the room temperature T rises, the air pump 8 is operated until the air pressure P in the mat reaches the set pressure Pm. On the contrary, when the room temperature is lowered, the motor-operated valve 9 is opened to reduce the pressure, and the air pressure P in the mat is set to the set pressure.
When Pm is reached, the motor-operated valve 9 is closed and pressure adjustment is completed.

With the above operation, the hardness of the mat body is automatically adjusted according to the room temperature without using the manual operation, so it is easy to use, and since proper ventilation in the bed according to the room temperature is possible, it may be too hot. You can sleep comfortably without getting too cold.

In the above embodiment, the temperature sensor detects the room temperature and controls the air pressure supplied to the mat. However, the temperature sensor is arranged on the mat to detect the temperature in the bed, or The pressure of the air supplied to the mat may be controlled by detecting the body temperature, and the same effect as above can be obtained.

Effects of the Invention As described above, according to the sleeping apparatus of the present invention, the following effects are obtained.

In other words, the hardness of the mat body is automatically adjusted according to the temperature without using manual operation, so it is easy to use, and since proper ventilation in the bed according to the temperature is possible, it is too hot or too cold. You can sleep comfortably without getting tired.

[Brief description of drawings]

FIG. 1 is a principle configuration diagram of an air mat according to an embodiment of the present invention, FIG. 2 is a perspective view of the air mat, and FIG. 3 is a diagram showing a relationship between room temperature and set air pressure of the air mat. Four
The figure is a perspective view of a conventional air mat. 1 ... Mat, 6 ... Temperature sensor, 7 ... Pressure adjusting device.

Claims (4)

[Claims] 1. An air mat having a temperature sensor and a pressure adjusting device for increasing / decreasing an air pressure supplied to a mat body based on a signal from the temperature sensor. 2. The air mat according to claim 1, wherein the temperature sensor detects room temperature. 3. The air mat according to claim 1, wherein the temperature sensor is provided in the mat body and detects the temperature in the bed. 4. The air mat according to claim 1, wherein the temperature sensor detects body temperature.