JPH0439325B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to an air pine surge mat, a chair,
This invention relates to air mats used as bedding sheets, bedsore prevention and treatment mats for patients, etc.

[Background technology]

Conventional air mats simply fill air between two sheets, so they do not have a pine surge effect, and even though they support the body,
It has low buoyancy and elasticity, and has no drying function.
The problem was that it was uncomfortable to use.

[Purpose of the invention]

The present invention was made in view of these problems, and its purpose is to increase the pine surge effect with a rational configuration, increase the buoyancy and elasticity that supports the body, and further improve the air flow. To provide an air mat capable of exhibiting a drying function by blowing air.

[Disclosure of the invention]

In the present invention, an upper sheet 2 is arranged above the center sheet 1, a lower sheet 3 is arranged below the center sheet 1,
An upper air bag 4 whose interior serves as an upper air circuit is constructed by joining the upper sheet 2 to the central sheet 1.
A lower air bag 5 is formed by joining the lower sheet 3 to the lower air bag 5 whose interior becomes a lower air circuit, and the center sheet 1 and the upper sheet 2
and the joint part 7 between the central seat 1 and the lower seat 3 are located approximately in the center of the air circuit of the other side, and the air supply device 12 is connected to the upper air bag 4 via the valve 11. A port for supplying air to the upper air bag 4, a port for stopping air supply, and a port for allowing exhaust air from the upper air bag 4 are configured. This relates to an air mat characterized in that a number of air ejection holes 14 of the lower air bag 5 are provided at the joint 6 with the lower air bag 5, and an air supply device 12 is connected to the lower air bag 5. By doing so, we were able to achieve the above objective.

Embodiments of the present invention will be described in detail below with reference to the drawings.

An upper sheet 2 is disposed above the center sheet 1, and the upper sheet 2 is joined to the center sheet 1 in a substantially band shape at a distance. Thus, the center sheet 1 and the upper sheet 2 are connected in series, and both ends are closed to form an upper air bag 4 that can form a curved upper air circuit as a whole. A lower sheet 3 is disposed below the center sheet 1, and the lower sheet 3 is joined to the center sheet 1 at intervals in a substantially band shape.
Thus, the central sheet 1 and the lower sheet 3 are connected in series to form a lower air bag 5 that can form a lower air circuit that is curved as a whole with both ends closed. A joint 6 between the center sheet 1 and the upper sheet 2 and a joint 7 between the center sheet 1 and the lower sheet 3
and are located approximately at the center of the curved air circuit of the other party. Then, the supply/discharge port 8 of the upper air bag 4
A pump 10 as an air supply device 12 is connected in parallel to the air supply and discharge port 9 of the lower air bag 5, respectively.
A valve 11 is provided in a piping section from the pump 10 to the upper air bag 4. The valve 11 has three ports: a port for supplying air to the upper air bag 4, a port for stopping the air supply, and a port for allowing exhaust air from the upper air bag 4 to be released to the atmosphere. be. That is, valve 1
1 is a 3-port type. Note that the operation position is, for example, the 2nd position.

The center sheet 1 is placed on the upper surface of the lower air bag 5.
A large number of air ejection holes 14 of the lower air bag 5 are provided at the joint 6 between the upper sheet 2 and the upper sheet 2. The ejection holes 14 of the lower air bag 5 do not extend to the upper air bag 4, and only the air inside the lower air bag 5 is ejected.

By operating the valve 11 and connecting the air supply port to the supply/discharge port 8, air is supplied to the upper air bladder 4 to inflate it. and the supply/discharge port 9 of the lower air bag 5 are always connected, and as shown in Figure 2a, the upper and lower air bags 4 and 5 swell to provide sufficient buoyancy and elasticity to support the body. It is possible. Then, the air jet hole 14 of the lower air bag 5
Air is constantly jetted out to dry the body. Next, operate the valve 11 to connect the port for stopping air supply to the pump 10 side, and connect the port for exhausting air from the upper air bag 4 to the supply/discharge port 8 of the upper air bag 4. Therefore, the air from the upper air bladder 4 is discharged to the atmosphere through the port (see FIG. 2b). In this way, by inflating and deflating the upper air bladder 4 at the correct timing, the fulcrum that supports the body by the upper and lower air bladders 4 and 5 is alternately shifted by an even half pitch, and air is constantly blown out. In addition, the pine surge effect by changing the fulcrum that supports the body and the pine surge effect due to the stimulation of air jets are added, resulting in effective pine surge effects and drying effects.

As shown in FIGS. 5 and 6, the air jet holes 14 are formed by welding the center sheet 1 and the upper sheet 2 together, making the welded portions 15 circular at appropriate locations, and forming the center sheet surrounded by the circular portions. A portion 16 that is not welded is formed in this portion 16, and an air jet hole 14 is formed in this portion 16 to prevent air from leaking between the center sheet 1 and the upper sheet 2, and to prevent the air jet hole 14 from leaking from between the center sheet 1 and the upper sheet 2. By providing this, the welded portion is prevented from becoming weak.

FIGS. 7 and 8 show other embodiments, and as shown, the shapes of the joint portion 6 and the joint portion 7 can be modified in various ways. Note that the black circles in the figure indicate the air jet holes 14 of the lower air bag 5. In the figure, the white circle indicates the large diameter portion at the tip of the joint portion 7, which increases the strength of the tip. FIG. 9 shows another example of the valve 11, which is of a three-position type, so that even if the air supply from the pump 10 is cut off, the upper air bag 4 can be maintained in an inflated state. It is.

〔Effect of the invention〕

In summary, the present invention comprises an upper air bag above the center sheet, a lower air bag below the center sheet, and inflates and deflates the upper air bag. Since the upper air bag and the joint between the center sheet and the lower sheet are located approximately in the center of the air circuit of the other side, the fulcrum that supports the body can be shifted by half a pitch as the upper air bag expands and contracts. This has the advantage that the pine surge effect can be greatly enhanced.
Moreover, since the joint and the joint are located approximately in the center of the other air circuit, there is an advantage that the fulcrum pitch can be made finer and the buoyancy and elasticity that support the body can be increased. Furthermore, since the lower air bladder is constantly inflated and equipped with an air outlet that blows air toward the body, it not only dries the body, but also has the advantage of increasing the pine surge effect by stimulating the air jet. . Moreover, in particular the invention has the advantage that the above functions can be achieved with one valve and the air supply arrangement can be simplified.

[Brief explanation of drawings]

FIG. 1 is a schematic plan view of one embodiment of the present invention, and FIG.
Figures a and b are schematic sectional views showing the action of the above, Figure 3 is an overall explanatory view of the same, Figure 4 is an explanatory view of an example of the valve of the same, and Figure 5 is an enlarged plan view of the air jet hole of the same. , FIG. 6 is a schematic sectional view of the same valve, FIGS. 7 and 8 are plan views of other embodiments of the same valve, respectively, and FIG. 9 is an explanatory view showing another example of the same valve. Seat, 2 is an upper sheet, 3 is a lower seat, 4 is an upper air bag, 5 is a lower air bag, 6 is a joint part, 7 is a joint part, 11 is a valve, 12 is an air supply device, 1
4 is an air outlet.

Claims (1)

[Claims] 1 Arrange the upper sheet above the center sheet, arrange the lower sheet below the center sheet, connect the upper sheet to the center sheet to form an upper air bag with an upper air circuit inside, and connect the lower sheet to the center sheet. The sheets are joined together to form a lower air bag whose inside becomes a lower air circuit, and the joint between the center sheet and the upper sheet and the joint between the center sheet and the lower sheet are located approximately in the center of the other air circuit, An air supply device is connected to the upper air bag through a valve, and the valve has a port for supplying air to the upper air bag, a port for stopping air supply, and a port for allowing exhaust from the upper air bag, and On the top surface of 5, a large number of air ejection holes for the lower air bag are provided at the joint between the center sheet and the upper sheet,
An air mat comprising an air supply device connected to a lower air bag.