JPH03267013A - Air matress - Google Patents

Abstract

PURPOSE:To enable users to set the hardness of their own preferences by controlling the pump and the solenoid valve with the comparison of the pressure corresponding to the hardness set by an operator in the control circuit and the output of each pressure sensor. CONSTITUTION:Air is sent to a plurality of air matresses 10 individually supporting different parts of human bodies independent of each other with a pump 30. Between this pump 10 and each air matress 10 a plurality of solenoid valves 32 and accumulators 30 are provided in correspondence to each air matress 10. Then the pressure of each air matress 10 is detected with a plurality of pressure sensors 37. Then in the control circuit, the pressure corresponding to the hardness set with an operator and the output of each pressure sensor 37 are compared to control the pump 30 and each solenoid valve 32. Consequently users can set the hardness of their own preferences to be able to set hardness appropriate for each part such as waists and shoulders so that they can obtain an ideal posture for sleeping, which provides sound sleeps.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to an air mat that is made elastic by being filled with air.

[Conventional technology]

Generally used pine restraints are spring type using coil springs as the elastic material, and the hardness (softness) of the pine restraint is almost determined by the spring constant of the coil spring, so there are various hardness types available in advance. We have multiple types of pine tresses available for users to choose from at the time of purchase.

[Problem to be solved by the invention]

In this case, there is a problem in that products must be prepared for each hardness (usually about five types). As shown in Fig. 8, the hardness of the fillings 17 and 18, which are located on the front and back sides of the pinerest 1 and between which the coil spring 16 is arranged, can be changed and used with different hardnesses by switching the front and back sides. There are some that have made it possible to do this, but there are still
I have to prepare several types. In addition, pinerests usually have a symmetrical structure, so that when the negative side becomes sag, it can be turned over and used to extend its life. Also, even if you choose the firmness by lying down for 1 to 2 hours at the store at the time of purchase, it is not possible to clearly judge whether the selected firmness is suitable or not.
Many users complain about the firmness several days after purchasing. Furthermore, the hardness of the pinerest is different for the shoulder, waist, and leg parts.In other words, as shown in Fig. 9, the coil springs 1-6a in the shoulder part are made harder, It is preferable that the coil spring 16b in the waist area is soft and the coil spring 16c in the leg area to have an intermediate hardness, but the hardness ratio of these parts differs depending on the user. This further exacerbates the problem of having to prepare products for each hardness. The present invention has been developed in view of these points, and its purpose is to allow the user to set the firmness to his or her preference, and to also set the firmness to be suitable for areas such as the waist and shoulders. The aim is to provide an air pine mattress that can be set to achieve the ideal sleeping position that will lead to a deep sleep.

[Means to solve the problem]

Therefore, the present invention provides a plurality of air pins I for supporting different parts of the human body independently of each other, a pump for supplying air to these air mattresses, and a plurality of air pins I, which are provided between the pump and each air mattress in correspondence with each air mattress. a plurality of solenoid valves and accumulators, a plurality of pressure sensors for detecting the pressure on each air mat 1, an operating device for setting the hardness of each air mat, and a pressure corresponding to the hardness set by the operating device. It is characterized by comprising a control circuit that compares the output of each pressure sensor and controls the pump and each electromagnetic valve. [Function] According to the present invention, each air mat can be adjusted to different hardnesses, and each hardness can be set to a value desired by the user. [Embodiment] The present invention will be described in detail below based on the illustrated embodiment. As shown in FIG. As shown in FIG. 3, three air pines 1-10, 10, and 10 are arranged between cases 11 and 12 and covered with a cover 13. In the figure, 14 is a ventilation pipe. The air pressure control section 3 includes a pump 3 as shown in FIG.
0, and the number of solenoid valves 32 and accumulators 31 that match the number of air mattresses 10. The control unit 1 is composed of a control unit 33, and an operating device 4 is connected to the control unit 33. In the figure, 34 is a connector connected to the connector 15 of the ventilation pipe 14. Fig. 5 shows the circuit diagram, and Fig. 1 shows the piping diagram. As shown in FIG. 5, the operating device 4 includes a hardness/softness adjustment switch 41 for setting the hardness of the air mattress 10 corresponding to the shoulder position.
42, hardness/softness adjustment switches 4B, 44 for setting the hardness of the air mattress 10 corresponding to the waist position, and hardness/softness adjustment switches 45, 46 for setting the hardness of the air mattress 10 corresponding to the leg position, Power switch 47
and a light emitting display means 48a that displays each adjustment state. 4.8b and 48c. The control unit 33 to which this operating device 4 is connected is composed of a control circuit 35 made up of a microcomputer, a power output unit 36, and a power supply section, and the control circuit 35 is configured to detect the internal air pressure of each air mattress 10. Pressure sensor 3
7 is connected via an A/D converter, and a pump 30 and each electromagnetic valve 32 are connected to the power output unit 36. In the figure, 38 is a filter provided in the pump 30. As is clear from FIG. 1, the solenoid valves 32 connected between the pump 30 and each air mat 10 are completely shut off at the neutral position, the pump 30 is connected to the air mat 10 on one side, and the other side is closed. A 3-point, 3-position switching valve is used to connect Air Pines 1 to 10 to the outside air through three silencers. Note that each accumulator 31 and each pressure sensor 37 are respectively connected between each solenoid valve 32 and each air mat 1o. The control circuit 35 receives feedback from each pressure sensor 37 and sets the air pressure in each air mattress 10 corresponding to the shoulder position, waist position, and leg position to a pressure that provides the hardness set by the operating device 4. This is adjusted by the pump 30 and each electromagnetic valve 32, and for this reason, it is possible to make each air mattress 10 have the hardness desired by the user, and also to adjust the shoulder position, waist position, and leg position. The hardness of each air mattress 10 can be set to an appropriate value, and the control circuit 35 also controls the increase in air pressure due to the rise in temperature during use.
To deal with this, let the air out of the air mattress 10.
The hardness of the air mattress 10 does not change during sleep. As shown in FIG. 6, the solenoid valve 32 has two ports and two
A position switching valve is used and two valves are used for each air mat 10, one for air supply and one for exhaust, or as shown in FIG. The exhaust solenoid valve 32, which is a switching valve, may be combined with an exhaust solenoid valve 60, which is also a two-bottom, two-position switching valve.

【Effect of the invention】

As described above, the present invention includes a plurality of air mattresses that independently support different parts of the human body, a pump that supplies air to these air mattresses, and a structure that corresponds to each air mattress between the pump and each air mattress. A plurality of solenoid valves and accumulators provided, a plurality of pressure sensors that detect the pressure of each air mat, an operating device for setting the hardness of each air mat 1, and a pressure corresponding to the hardness set by the operating device. and a control circuit that compares the output of each pressure sensor and controls the pump and each solenoid valve, so each air mat can be adjusted to a different hardness, and each hardness can be adjusted to the user's preferred value. It is possible to
In addition, it is possible to adjust the firmness according to the user's preference, allowing the user to adjust the firmness to a level that allows the user to sleep soundly. The vibrations caused when turning over in bed are not transmitted, so you can sleep soundly. In addition, from the manufacturer's perspective, there is no need to prepare many products with different hardnesses, which is convenient in terms of production and inventory.

[Brief explanation of drawings]

Figure 1 is a piping diagram of an embodiment of the present invention, Figure 2 is a perspective view of the same as the above, Figure 3 is an exploded perspective view of the same as the above, Figure 4 is a perspective view of the pneumatic control section of the same as the above, and Figure 5 is the same as the above. Fig. 6 is a piping diagram of another embodiment same as above, Fig. 7 is a piping diagram of yet another embodiment, Figs. 8(a) and (b) are sectional views of the conventional example, and Fig. 9 1 is a sectional view of another conventional example, in which 10 is an air mattress, 30 is a pump, 31 is an accumulator, 32 is a solenoid valve, and 37 is a pressure sensor.

Claims (1)

[Claims] (1) A plurality of air mats that support different parts of the human body independently of each other, a pump that supplies air to these air mats, and a plurality of electromagnetic devices provided between the pump and each air mat, corresponding to each air mat. A valve and an accumulator, a plurality of pressure sensors that detect the pressure of each air mat, an operating device for setting the hardness of each air mat, and a pressure corresponding to the hardness set by the operating device and the output of each pressure sensor. An air mattress comprising a pump and a control circuit for controlling each electromagnetic valve.