JPH01139061A - Controller for bedsore preventing mat - Google Patents

Abstract

PURPOSE:To reduce cost by reducing the number of assembling processes, by constituting the title controller so that one suction hole formed to a base board is allowed to communicate with both of a pressure adjusting part and an air change-over part on the input sides thereof and two branch passages formed to the air change-over part communicate with two nozzles formed to the base board. CONSTITUTION:A control unit consists of an air change-over part 30a and a pressure adjusting part 30b, and the air change-over part 30a is constituted so that a disc 31 having a circular arc hole formed thereto is rotated by a motor 33 while brought into contact with the base board 34 under pressure by a spring 32 and air is sent so as to be branched to nozzles 301, 302 through branch holes 35, 36. The pressure adjusting part 30b is constituted so that a pressure input hole 39 communicates with the suction hole 38 of the air change-over part 30a by a communication pipe 51, and the suction hole 38 and the pressure input hole 39 communicate with a sound arresting tank 9 and, in the case of two air chambers 4, 5 performing the expansion and contraction of a mat 1, two pipes 13, 29 are provided between an air pump 8 and the sound arresting tank 9 as well as the sound arresting tank 9 and the communication pipe 51. Therefore, the number of internal connection pipes can be extremely reduced and the reduction of cost can be attained.

Description

[Detailed Description of the Invention] [Technical Field 1] The present invention controls the hardness of an air mattress, the speed of expansion and contraction, and the air jetting, so that it can be used for bedridden people who cannot move their bodies. This invention relates to a controller for a floor slip prevention mat that prevents floor slippage from occurring.

[Background Art 1] FIG. 5 shows the structure of a conventional floor slip prevention mat, which is composed of an air-type mat 1 and a controller 2.

The mat 1 consists of two air chambers 4 and 5 that repeatedly expand and contract, and a connecting hose 3 that connects it to the controller 2.
Air is supplied through the controller 2. The controller 2 consists of an air pump 8, a muffling tank 9, a pressure regulating pulp 10, an air switching valve 11, and a nozzle 12. The air pump 8 and the muffling tank 9 are connected by a connecting pipe 13, and the muffling tank 9 and pressure regulating The pulp 10 and the air switching valve 11 are connected to a connecting pipe 14.
They are tied together by 15. The branch pipe 21.22 on the output side of the air switching pulp 11 is connected to the 7-hole 12 and the connecting pipe 16.1.
They are connected by 7.

Now, the air compressed by the air pump 8 is transferred to the silencer tank 9.
The pressure pulsations are eliminated. Further, the pressure inside the muffling tank 9 is regulated by a pressure regulating pulp 10 connected to the muffling tank 9 through a connecting pipe 14, and the pressure-adjusted air flows to the air switching valve 11. The air switching valve 11 is of a rotary type, and a disc with an arc-shaped hole in the shape IIN is rotated to send air to and exhaust air from the air chambers 4 and 5. The air chambers 4 and 5 of the mat 1 alternately expand and contract at regular intervals.

In this way, the position support point of a bedridden patient is changed at regular intervals, thereby eliminating obstruction of blood flow due to pressure, preventing necrosis of human tissue, and preventing bed shifting.

FIG. 6 shows another conventional example, which is composed of a mat 1 and a controller 2, and the mat 1 has many air jet holes between two air chambers 4, 5 and rain air chambers 4, 5 that repeatedly expand and contract. The mat 1 is made up of three air chambers including an air chamber 6 provided with an air chamber 7, and air controlled by the controller 2 is supplied to the mat 1 through a connecting hose 3 that connects the mat 1 with the controller 2.

The controller 2 includes an air pump 8, a silencing tank 9, solenoid valves 23a to 23c, a nozzle 24, a control circuit 25, etc., and the air pump 8 and the silencing tank 9 are connected to a connecting pipe 13.
are connected to the silence tank 9 and the solenoid valves 23a to 23c.
are connected by connecting pipes 18, 19, and 20, respectively. The solenoid valves 23a to 23c and the glue 24 are connected to connecting pipes 26 and 2.
7 and 28, respectively. And air pump 8
The solenoid valves 23a to 23c and the control circuit 25 are electrically connected.

Next, the operation will be explained. The air chambers 4 and 5 of the mat 1 repeatedly expand and contract at regular intervals. In other words, while the air chamber 4 is expanding, the air chamber 5 is in a contracted state by discharging the air inside through the exhaust hole of the solenoid valve 23e, and after a certain period of time, the air in the air chamber 4 is is discharged from the exhaust hole of the solenoid valve 23a, causing the air chamber 4 to contract, and air is injected into the air chamber 5 by the solenoid valve 23c, so that the air chamber 5 alternately repeats the expanded state. However, this operation is realized by turning on and off the solenoid valves 23a and 23c by the control circuit 25, which changes the position support point of the bedridden patient at regular intervals and eliminates the obstruction of blood flow due to compression. It prevents necrosis of human tissue and prevents floor shifting. Furthermore, when the solenoid valve 23b is turned on by the control circuit 25, air is blown out from the air outlet 7 of the air chamber 6, thereby also having a dehumidifying effect to prevent the patient's body from getting stuffy due to sweating. Furthermore, if this is not necessary, the air jet can be stopped by turning off the solenoid valve 23b by the control circuit 25, and the presence or absence of air jet can be selected independently of expansion and contraction. It is.

However, the conventional example shown in Fig. 5 requires five connection pipes, and the conventional example shown in Fig. 6 requires seven connection pipes, and sufficient space must be provided inside the controller 2 to prevent the large number of connection pipes from bending during piping. However, the controller 2 itself becomes larger, and the number of assembly steps increases, resulting in an increase in cost.

[Object of the Invention] The present invention has been provided in view of the above-mentioned points, and provides a controller for a floor slip prevention mat that aims to reduce the number of connecting pipes, reduce the number of assembly steps, and reduce costs. This is what we provide.

[Disclosure of the Invention 1 (Structure) The specified invention includes a pressure adjustment section that can adjust the hardness of a mat in which a plurality of air chambers for expansion and contraction are formed, and a pressure adjustment section that can adjust the hardness of a mat in which a plurality of air chambers are formed. A controller for a floor slipping prevention mat comprising an air switching section that supplies air for a predetermined period of time to an air chamber for expansion and contraction, and an air pump that supplies air from the air switching section to the mat via a nozzle, the pressure adjustment section described above. and an air switching section are integrally formed on the base, one suction hole formed on the base, the input side of the pressure adjustment section and the input side of the air switching section communicate, and two branches formed on the air switching section are formed. Since the passage and the two nozzles integrally formed on the base are in communication with each other, one suction hole formed on the base is communicated with the input side of the pressure cylinder gI section and the input side of the air switching section, By communicating the two branch passages formed in the air switching section with the two nozzles formed integrally on the base, we have reduced the number of connecting pipes, reducing assembly man-hours and costs. This is a characteristic feature.

In addition, in the combined invention, the hardness of the mat in which a plurality of air chambers for expansion and contraction and a blowing air chamber having air blowing holes independent of the air chambers are formed can be adjusted according to preference. In a controller for a floor slip prevention mat, the controller is equipped with a pressure adjusting part that can be adjusted, an air switching part that supplies air for a predetermined period of time to a plurality of air chambers for expansion and contraction of the mat, and an air pump that supplies air to the mat, Above pressure l
i! Supplying air to the adjustment section, air switching section, and blowout air chamber,
A blowout switch section to shut off is integrally formed on the base, and one suction hole formed on the base communicates with the input side of the pressure adjustment section and the input side of the air switching section. The branch passages communicate with two nozzles integrally formed on the base, the input side of the jetting switch section communicates with the suction hole, and the output side communicates with the two branch passages of the air switching section. By communicating with another nozzle, one suction hole formed on the base, the input side of the pressure IR section and the input side of the air switching section are communicated, and the two nozzles formed on the air switching section are connected to each other.
The branch passages of the book communicate with two nozzles integrally formed on the base, the input side of the jetting switch part communicates with the suction hole, and the output side communicates with the two branch passages of the air switching part. The nozzle is characterized by communicating with another nozzle, thereby reducing the number of connecting pipes and reducing assembly man-hours and costs.

(Example 1) Hereinafter, an example of the specific invention will be described with reference to the drawings. FIG. 1 shows the structure of a floor slip prevention mat of a specific invention corresponding to the conventional example shown in FIG. In addition, the configuration of mat 1 is the fifth
Since it is the same as the case in the figure, the explanation will be omitted. The controller 2, which is connected to the mat 1 and the connection hose 3, is composed of an air pump 8, a noise reduction tank 9, and a mount roll unit 30. The air pump 8 and the noise reduction tank 9 are connected by a connection pipe 13, and the The tank 9 and the control unit 30 are connected by a connecting pipe 29.

The control unit 30 has two nozzles 30, . 3
02 are integrally formed, and these nozzles 30, . 30
□ is outside the controller 2.

And nozzle 30. ．． 302 is connected to the connection hose 3.

FIG. 2 shows the control unit 30, which consists of an air switching section 30a and a pressure adjustment section 30b.
ali - In Fig. 2(e), the pressure adjustment part 30b is shown in Fig. 2(e).
d). The air switching section 30a is shown in FIG.
), a disc 31 with an arc-shaped hole is pressed by a spring 32 to a base 34 with branch holes 35 and 36 forming branch passages, and is then driven and rotated by a motor 33. Through branch hole 35.36/gal 3
0. , 302 and sends the air in a branched manner. And nozzle 30. ．． 302 to inflate the air chambers 4 and 5 of the mat 1, and from the air chambers 4 and 5 of the mat 1 to the nozzle 30. ．． The air that has returned to the branch holes 35 and 36 through 30□ is discharged outside from the exhaust hole 37, and the air chambers 4 and 5 of the mat 1 are alternately expanded and contracted at regular intervals. In the pressure adjustment section 30b, the pressure input hole 39 communicates with the suction hole 38 of the air switching section 30m through the communication pipe 51, and the suction hole 38 and the pressure input hole 39 are muted through the suction hole 51m of the communication pipe 51. It communicates with tank 9. The air compressed by the air pump 8 can escape through the gap 41 between the adjustment shaft 40 and the base 34, and by rotating the adjustment shaft 40 and changing the width of the gap 41, the amount of air that can escape to the outside can be adjusted. It is possible to adjust the air pressure to the appropriate level.

In this way, when the mat 1 has two air chambers 4 and 5 that expand and contract, the communication pipe 5 between the air pump 8 and the silencing tank 9, and between the silencing tank 9 and the control unit 30
1 and the open connection pipe 13.29, there is less worry about the connection pipe 13.29 being bent during assembly, and the controller 2
It can be made smaller, the number of assembly steps can be reduced, and the cost can be reduced.

(Example 2) Next, a merged invention will be explained. The floor slip prevention mat of this embodiment is composed of a mat 1 and a controller 2, and the mat 1 has two air chambers 4 and 5 that repeatedly expand and contract.
It consists of three air chambers: a rain air chamber 4 and an air chamber 6 with a large number of air ejection holes 7 between them. is supplied to mat 1. The controller 2 includes an air pump 8, a muffling tank 9, and a control unit 30. The air pump 8 and the muffling tank 9 are connected by a connecting pipe 13.
and the control unit 30 are connected by a connecting pipe 29. The control unit 30 has three /zuru 30. , 302, 30 are formed, and this nozzle 30. ．． 30. .

30 is out to the outside, and connected to mat 1 by connecting hose 3.
It is tied to

Figure 4 Ji Funtrol Units) 30 tr: Indication L
, an air switching section 30a, a pressure adjusting section 30&, and a jetting switch section 30c. Air switching section 30a and pressure adjustment section 30b
is the same as shown in the previous embodiment. Air switching section 30a1 pressure adjustment section 30b and jetting switch section 30
The input sides of c are connected to each other by a communication pipe 52, and the communication pipe 52 is formed with one suction hole 52a. The nozzles 301, 302, and 303 are formed in the air switching section 30a, and the jet output hole 43 of the jet switch section 30c and the nozzle 30 communicate with each other through a communication pipe 53.
Air from nozzle 30. It starts to gush out. The ejection switch part 30c is shown in Figure tIIJ4 (
d), when the ball valve 44 is in pressure contact with the jet input hole 42 and the jet output hole 43 by the spring 45, the communication pipe 5 communicating with the jet input hole 42
The air entering from the suction hole 52a of
It does not flow to mat 1 via c. However, by rotating the switch port 46 of the ejection switch section 30C, the ball valve 4
4 is separated from the jet input hole 42 and the jet output hole 43, the air entering from the suction hole 52a flows into the air chamber 6 of the mat 1 via the jet switch section 30c, and air exits through the air jet hole 7. Note that the operations of the air switching section 30a, the pressure adjusting section 30b, and the air chambers 4 and 5 of the mat 1 are the same as in the previous embodiment, so a description thereof will be omitted.

In this way, the air outlet hole 7 is independent of the air chambers 4 and 5.
If there is an air chamber 6 with a It can be made smaller, the number of assembly steps can be reduced, and the cost can be reduced.

[Effect of the Invention 1 As described above, the specific invention provides a pressure adjusting section that can adjust the hardness of a mat in which a plurality of air chambers for expansion and contraction are formed according to preference, and a plurality of air chambers of the mat. An air switching unit that supplies air for a predetermined period of time to an air chamber for expansion and contraction of the mat, and an air pump that supplies air from the air switching unit to the mat through a nozzle. The air switching section and the air switching section are integrally formed on the base, and one suction hole formed on the base communicates with the pressure WI4 adjustment section 0 input side and the input side of the air switching section, and two holes are formed on the air switching section. 2 integrally formed on the branch passageway and the base.
Since the nozzles of the book are connected to each other, one suction hole formed in the base is connected to the input side of the pressure adjustment part and the input side of the air switching part, and two holes formed in the air switching part are connected to each other. Two 7X' integrally formed on the branch passage of the book and the base.
By communicating with each other, the number of connecting pipes inside is greatly reduced, which reduces the risk of the connecting pipes bending.Moreover, the overall size can be made smaller due to the reduction in the number of connecting pipes. This has the effect of reducing assembly man-hours and reducing costs.

As mentioned above, the combined invention is to adjust the hardness of the mat in which a plurality of air chambers for expansion and contraction and a blowing air chamber having air blowing holes independent of the air chambers is formed according to preference. An air switching unit that supplies air for a predetermined period of time to a plurality of air chambers for expansion and contraction of the mat, and an air pump that supplies air to the mat. In the controller for F), air is supplied to the pressure adjustment section, air switching section, and blowout air chamber.

A blowout switch section to shut off is integrally formed on the base, and one suction hole formed on the base communicates with the input side of the pressure adjustment section and the input side of the air switching section. The branch passages communicate with two nozzles integrally formed on the base, the input side of the jetting switch section communicates with the suction hole, and the output side communicates with the two branch passages of the air switching section. is designed to communicate with another nozzle, so one suction hole formed in the base communicates with the input side of the pressure adjustment section and the input side of the air switching section, and two nozzles formed in the air switching section are connected. A nozzle in which the branch passages of and two nozzles integrally formed on the base are in communication with each other, the input side of the jetting switch part communicates with the suction hole, and the output side of the air switching part communicates with the two branch passages. By communicating with a separate nozzle, the number of internal connection pipes can be greatly reduced.
There is less worry about the connecting pipes bending, and the overall size can be made smaller by reducing the number of connecting pipes.Furthermore, the number of assembly steps can be reduced, resulting in cost reduction. .

[Brief explanation of the drawing]

Figure 1 is an overall configuration diagram of an embodiment of the specified invention, Figure 2 (
) to (d) are the same control units as above? ), the A-A cross-sectional view in FIG. 2(b) and the B-B cross-sectional view in FIG. 2(b), FIG. 4(a) to 4(') are a rear view, a top view, and a front view of the same control unit as above, a CC sectional view in FIG. 4(c), a DD sectional view in FIG. 4(e), and Figure 4(e)
FIG. 5 is an overall configuration diagram of the conventional example, and FIG.
The figure is an overall configuration diagram of another conventional example. 1 is the mat, 2 is the controller, 4, 5.6 is the air chamber,
7 is an air jet hole, 8 is an air pump, 30 is a control unit, 30. ．． 30□, 30 is nozzle, 30
& is an air switching section, 30b is a pressure adjustment section, 30c is an ejection switch section, 34 is a base, and 51m and 52m are suction holes. Agent Patent Attorney Ishi 1) Chief 7 Figure 2 (c) (d) Figure 4 (e) (f) Figure 5

Claims (2)

[Claims] (1) A pressure adjustment section that can adjust the hardness of the mat in which a plurality of air chambers for expansion and contraction are formed, and a pressure adjustment section that can adjust the hardness of the mat according to preference, and a pressure adjustment section that allows the mat to have a plurality of air chambers for expansion and contraction. In a controller for a floor slip prevention mat that includes an air switching section that supplies air and an air pump that supplies air from the air switching section to the mat through a nozzle, the pressure adjustment section and the air switching section are integrated on a base. One suction hole formed in the base, the input side of the pressure adjustment part, and the input side of the air switching part communicate with each other, and two branch passages formed in the air switching part and two passages integrally formed in the base communicate with each other. A controller for a floor slip prevention mat, characterized in that each nozzle of a book is in communication with the nozzle of the book. (2) A pressure adjustment section that can adjust the hardness of the mat in which a plurality of air chambers for expansion and contraction and a blowout air chamber having an air blowout hole independent of the air chambers is formed according to preference. , an air switching section that supplies air for a predetermined period of time to a plurality of air chambers for expansion and contraction of the mat, and an air pump that supplies air to the mat; , an air switching section, and a blowout switch section that supplies and shuts off air to the blowout air chamber are integrally formed on the base, and one suction hole formed on the base, the input side of the pressure adjustment section, and the input side of the air switching section. The side communicates,
The two branch passages formed in the air switching section communicate with the two nozzles integrally formed on the base, the input side of the jet switch section communicates with the suction hole, and the output side communicates with the two nozzles of the air switching section.
A controller for a floor slip prevention mat, characterized in that the book branch passage communicates with a different nozzle from the one with which it communicates.