JPH03193050A - Air mat - Google Patents

Abstract

PURPOSE:To simplify the constitution for adjusting the blowout quantity of air by forming an air blowout hole in a first and a second air chamber which expand and contract alternately, and providing a stopping means for stopping the blowout of air of a third air chamber which does not expand nor contract. CONSTITUTION:To an air supply port 1b of a first air chamber 1 and an air supply port 2b of a second air chamber 2, compressed air is supplied alternately, and to an air supply port 3b of a third air chamber 3, it is supplied continuously. By closing an opening/closing valve 8 of an air piping to a third air chamber 3, stopping the supply of air to a third air chamber 3, and executing the expansion and contraction of a first air chamber 1 and a second air chamber 2, while executing a change of a body weight supporting position, blowout of air from an air blowout hole 3a of a third air chamber 3 is stopped, and in the winter season, etc., such use as that by a patient, etc., are allowed not to feel the cold can be executed by blowout of a small quantity by suppressing the blowout quantity of air. The air mat is constituted so that the blowout quantity of air of the whole is adjusted, and also, it will suffice that its constitution is the constitution for stopping the blowout of air, and the constitution for adjusting the blowout quantity of air is simplified.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an air mat that is used for a long period of time to prevent bedsores and has a pine surge effect. This is related to the technology that we are trying to achieve.

1-Prior art] Conventionally, in an air cloak, as shown in Fig. 4,
It has a first air chamber 1 and a second air chamber 2, which are arranged alternately and air is alternately supplied to the air supply 1 (11), 2 +), and the first air chamber 1 and the second air chamber 2 are arranged alternately. The chamber 2 is alternately expanded and contracted, and air is jetted out from the air jet holes 1a and 2a during the expansion. In the air mat AI with this configuration, vS1
Although it is possible to blow out air simultaneously with the expansion of the air chamber 1 and the second air chamber 2, it is not possible to stop blowing out the air and perform expansion and contraction. One way to solve this problem is to create a third air chamber 3' by meandering between the 12th air chamber 1', which has no air outlet, and the 2nd air chamber 2', as shown in FIG. and this i3 air chamber 3'
An air jet hole 3a' is provided in the air supply port 1.
．． Compressed air is alternately supplied from +3, 211 to alternately expand and contract the first air chamber 1' and the second air chamber 2', and air is jetted out from the air jet hole 3a' of the third air chamber 3'. By stopping the air supply to the third air chamber 3', the air jetting is stopped and only expansion and contraction can be performed.

[Problem to be Solved by the Invention 1] However, in such a configuration, the amount of air jetted out is adjusted by supplying or stopping air to the third air chamber 3n', and a small amount of air is There was a problem that the amount of ejection could not be obtained. In order to adjust the amount of air ejected in this way, a valve mechanism or the like is required for adjustment on the side of the pump that supplies the air, which poses a problem in that the configuration becomes complicated.

The present invention was made in view of such problems,
The purpose is to provide an air mat that can adjust the amount of air ejected without complicating the structure.

[Means for Solving the Problems 1] The air mat of the present invention has first air chambers 1 and @2 air chambers 2 that alternately expand and contract, and a third air chamber that does not expand and contract and has a large number of air jet holes 3a. The air mat is equipped with a chamber 3, and air jet holes 1.2 are provided in the first and second air chambers 1.2. A, 2a are formed, and a stop means for stopping air ejection from the third air chamber 3 is viewed from above.

1 action] In this way, the first air chamber 1 and the second air chamber 2 which expand and contract alternately, and the large number of air jet holes 3Il which do not expand and contract.
The air mat is equipped with a third air chamber 3 having a
f51 air chamber 1 and the second air chamber;
The alternating expansion and contraction of the air chamber 2 changes the user's weight support position to prevent bedsores, and the air jets from the air outlets 1a, 2a, and 3a, including the tlS3 air chamber 3, remove moisture. In particular, the air in the third air chamber 3 that constantly blows out air is provided with a stop means that stops the air blowing from the air blow-off holes 3a of the third air chamber 3, while allowing good medical treatment. The jetting of air from the jetting hole 311 may be stopped to adjust the overall amount of air jetting, and the configuration may be such that the jetting of air is stopped, that is, the supply of air is stopped. , the configuration for adjusting the amount of air ejected is simplified.

[Example 1 Embodiments of the present invention will be described in detail below based on the drawings.

Fig. 1 shows a perspective view of air mat A. Air mat A has a first sheet 4 and a lower sheet 5 stacked on top of each other, and the outer periphery and the welding line 6°6 shown in Fig. 1 are welded in a meandering manner. A meandering third air chamber 3 is arranged between the comb-shaped @1 air chamber 1 and the second air chamber 2. The first and second air chambers 1.2 have air jet holes 1a and 2, respectively.
It forms a. Further, air ejection holes 3a are also formed in the @3 air chamber 3. Air supply port i- of first air chamber 1
1] and the air supply port 2 +) of the second air chamber 2 are connected to a pump (not shown) that alternately supplies compressed air.
A pump (not shown) for continuously supplying compressed air is connected to the air supply port 31 of the third air chamber 3. The air piping 7 to the third air chamber 3 is provided with an on-off valve 8 such as a solenoid valve, which serves as a stop means 9 for stopping the supply of air to the third air chamber 3.

Thus, the alternate expansion and contraction of the first air chamber 1 and the second air chamber 2 changes the user's weight support position to prevent bedsores. In such a case, as shown in FIG. 3. Humidity is removed by blowing out a large amount of air from the air blowing holes in, 2a, and 3a, including the air chamber 3, so that good medical treatment can be provided even in summer. Then, as shown in FIG. 3, the on-off valve 8 of the air pipe 7 to the tIS3 air chamber 3 is closed, the supply of air to the third air chamber 3 is stopped, and the @1 air chamber 1 and the second air By expanding and contracting the chamber 2, the body weight support position can be changed and the air jet from the air jet hole 3a of the third air chamber 3 can be stopped. It can be used so that patients etc. do not feel cold due to the air being blown out. In this way, the total air ejection amount is
In addition, the configuration may be such that the air jetting is stopped, that is, the air supply may be stopped, and the configuration for adjusting the air jetting amount is simplified.

The total opening area of the air jet holes 1a, 2a, . . . of the first air chamber 1 and the second air chamber 2 is smaller than the total opening area of the air jet holes 3a of the $3 air chamber 3, When air is ejected as the first air chamber 1 and second air chamber 2 expand and contract, the user does not feel cold even in winter.

[Effects of the Invention 1] In short, the present invention provides an air mat that includes a first air chamber and a second air chamber that alternately expand and contract, and a third air chamber that does not expand and contract and has a large number of air ejection holes. There it is,
Since air ejection holes are formed in the first and second air chambers and a stop means is provided to stop air ejection from the third air chamber, the user can enjoy Although it is possible to prevent bed sores by changing the body weight support position, and to remove moisture by blowing air from the air outlets including the third air chamber, providing good medical care, With the stop means for stopping the air jet from the air jet hole, it is possible to stop the air jet from the air jet hole of the third air chamber, which is constantly jetting air, and thus the entire air jet is stopped. The amount can be i[, and the configuration can be such that the air jetting is stopped, that is, the air supply can be stopped, and the configuration for adjusting the air jetting amount can be simplified. There is an advantage.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, and FIGS. 2(a) and (b)
3(a) (1)) is a schematic sectional view showing the effect in a state where the amount of air ejected is small. is a perspective view of a conventional example, FIGS. 5(a) and 5(b) are schematic sectional views explaining the same effect as above, FIG. 6 is a perspective view of another conventional example, and FIG.
)(1)) is a schematic cross-sectional view illustrating the same effect as above,
1 is the first air chamber, 2 is the second air chamber, 3 is the third air chamber, 1
a, 2a, and 3a are air jet holes.

Claims (1)

[Claims] (1) A first air chamber and a second air chamber that alternately expand and contract;
An air mat comprising a third air chamber that does not expand or contract and has a large number of air ejection holes, wherein the air ejection holes are formed in the first and second air chambers and air ejection from the third air chamber is stopped. An air mat characterized by comprising a means for stopping the air mat.