JPH04504372A - Air flow controller pump and housing - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Air flow control device pump and housing The present invention relates to a fluid-based body support device. , especially for home use and what patients prefer to do to increase their comfort. The present invention relates to a fluid bed sleep device intended for use in any medical facility.

Restful sleep is generally associated with comfort, and comfort is associated with the least number of tossing and turning throughout the night. It has something to do with the state. It is known that tossing and turning during sleep, and therefore insufficient sleep, The main cause is increased pressure on the protruding parts of the body and maintenance of posture. In other words, there is insufficient support. The pressure exerted on the protruding parts of the body is The body tissue of the protrusion is compressed and the capillaries flowing towards the protrusion are It stops blood flow. This pressure, which cuts off blood flow in capillaries, is It is called blood pressure force.

Generally, the threshold for this ischemic pressure is considered to be 28 mmHg of mercury (15 inches of water). It is. Parts of the body that are subjected to pressure that exceeds the ischemic force threshold become uncomfortable; To relieve pain, turn over to relieve excessive pressure on the protruding area. It is.

If you do not maintain your posture properly due to improper pine stress, it will distort your spine. . Depending on its structural condition, spinal distortions may occur within or beyond the range of normal physiological movement. Occurs in a range exceeding this range. When this type of strain occurs in the spine, the ligaments become stretched. The condition of the joints is impaired. Nerve receptors in ligaments and joints respond to this strain. It senses and transmits it to the brain, where it is received at a conscious or subconscious level. taken. In an attempt to release this distortion by moving the body, the level of consciousness Or the action occurs at a subconscious level. Spinal alignment is important whether you are lying on your back or lying down. This can only be achieved when the natural curvature of the body is maintained even in this position.

Attempts to support the body evenly by maintaining pressure below the ischemic force throughout the body. Pneumatic pine tresses have been disclosed in the prior art. Examples of those patents are US National Patent Specification No. 4,662,012, No. 4.005,236; No. 3.605.145: and British Patent Specification No. 1,545.808.

All of the pine stresses in these patents are designed to achieve proper alignment of the spine. It has been criticized for not providing the necessary physical support. Furthermore, in these patents All about pine stress, when you get up on the bed or when you sit on the edge of the bed. The bed has been criticized for being crushed until the eaves are installed.

Summary of the invention The object of the invention is to use air beds such as those used at home and in various medical facilities. Realistic air pump and air flow controller built into an integrated housing The goal is to provide the following. Such an air bed will help maintain spinal alignment. At the same time, all parts of the body can be supported equally with pressure below the ischemic force. Features multiple support areas maintained at normal pressure by air do.

Another object of the invention is to maintain the air bed at normal pressure when a person lies on the pinerest. Improved pump and controls in integrated housing to maintain power The goal is to provide a

The purpose of these is to create a fluid pressure system with multiple vertical and horizontal air pockets or cells. Pump and air pump built into the integral housing to supply air to the pine tress This is accomplished by an air flow control device. Vertical and horizontal combinations in pine tress A number of air pockets or cells are provided in a plurality of longitudinal regions, preferably five regions. This is done by completely sealing each area. It will be done. For example, one preferred form of this pine tress is arranged in 15 rows. The cells are arranged in such a way that each row has seven cells of equal volume. . The first two rows of cells provide head support and have a water column of 101.6n+m (4 in. Preferably, it is expanded to a pressure of 1.5 inches. 3.4th and 5th row forms a second part for supporting the shoulders of a person lying on the pinerest. child The shoulder support area is inflated to a pressure of 152.4 mm (6 inches) in the water column. be done. The 6th row is separated to provide lumbar support for people lying on the pinerest. This is an area where This lumbar support area has a water column of 279.4 som (11 inches). ) is expanded to a pressure of The fourth area is next to column 7, 8, 9 and 10 formed by a column of water, which is 8 inches (203.2 mm) of water Supports the buttocks. The last five remaining rows are for the legs and feet of the person lying on the pine tress. This is the part that supports the feet and has a pressure of 101.6 mm (4 inches) in the water column. It is expanded like this.

This fifth region is subject to changes in normal pressure, and the body is in a supine or horizontal position. Helps align the spine by maintaining the body's natural curvature It has become.

One reciprocating diaphragm pump is used to inflate all five regions be done. This pump is an air flow control device to supply air to all five areas It is also built into an integrated housing. The pressure from the pump is controlled by four pressure regulators. flowed through. One pressure regulator adjusts the air pressure between the head and feet of the pinerest. supply air pressure to the parts of the part, and these parts are maintained at equal pressure values. . The remaining three pressure regulators supply air pressure to the shoulders, waist, and buttocks, respectively. do. All of the flow through these four pressure regulators is Pass through the surge check valve located between each part of the pine tress. It will be done. Pressure regulators supply air to each area and control each section of the pine tress. each by venting to the atmosphere and expelling the air from the corresponding part of the pine tress. operates to maintain a predetermined pressure in the area. Pressure regulators and The surge check valve is connected to the pine tress by hoses, and these hoses The housing extends from the housing to each region.

These and other purposes of this new bed will be clearly understood from the following drawing description. It will be understood. In the drawing: FIG. 1 shows an air bed incorporating the novel pump and air flow control device of the present invention. This is a diagrammatic drawing of the

Figure 2 shows the air pine tress used in the bed in Figure 1 and the pine tress. FIG. 3 is a perspective view of the enclosing cover.

FIG. 3 is a perspective view of only the air pine tress shown in FIG. 2.

FIGS. 3A and 3B show area portions 3A and 3, respectively, surrounded by circles in FIG. It is an enlarged view of B.

FIG. 4 is a cross-sectional view taken along line 4--4 of FIG.

Figure 5 shows one used to vacuum form the sheet of air pine tress of Figure 3. FIG. 2 is a broken exploded perspective view of the mold.

FIG. 6 is a partial schematic diagram of the air flow control device used in the air bed of FIG. It is a drawing.

Figure 7 shows the pressure regulator and surge check used in the air flow control device of Figure 6. FIG.

FIG. 8 shows the surge check pulse in the valve closed position. FIG. 3 is an exploded perspective view of the air pump and air flow #I controller housing.

Figure 1O shows an improved air pine tress operating to provide adjustable stiffness 2 is a partial schematic drawing of an airflow control device; FIG.

Figure 11 shows a side view of the improved pressure regulator used in the air flow control device of Figure 10. FIG.

Referring first to FIG. 1, the novel air flow control device housing 9 of the present invention An air bed 10 incorporating an air bed 10 is schematically shown. This air bed is It includes an air supply pump and air flow control device 15 housed in housing 90; This supplies air pressure to the air pine tress 25 and also draws air from the pine tress. Allow air pressure to escape. As shown in Figures 2 and 3, the air bed! 0 includes a unique cover 30 that encases the air pine tress 25.

air pine tress This pine tress 25 is formed of three independent parts 25a, 25b, and 25c. There is. When these parts are placed end to end as shown in Figure 3, Form a complete pine tress. As shown in Figure 3, each part is arranged in five rows 26. These rows 26 contain seven cells in the illustrated embodiment. They are the same width.

Each pine tress portion 25a, 25b, 25c is 1.27non (50mil (0,050 inch)) made of two vinyl sheets. Each sheet is Heating and vacuum forming creates a series of recesses or pockets 28 (Fig. 3A). and FIG. 3B). These sheets are placed along the edges 29 and in the pockets. The pockets are sealed along the lines between adjacent pockets except at the intersecting corners of the cut.

The pocket has a square cross section and the seals 29 are adjacent to each other to form cells 35. It is formed between the pockets. Best shown in Figures 3A and 3B. As such, the seals 29 between adjacent cells 35 are completely formed in any region. It has not been done. Rather, the width is 6.35rnm-12.7n+m (1/4~1/4 21/2) channels 27 are formed in the corners between adjacent cells. It is. These trenches are formed with vertical walls between adjacent cells in the manner described below. will be accomplished. In which area?

Even in this case, the gap or width of the groove 27 between adjacent cells is the same for all cells in the area. It is sufficient to allow even distribution of air and also allows the sleeper to avoid pine tress. Allows air to move between cells as it moves above. The vertical wall of groove 27 is This prevents the grooves from being crushed when a person sleeping on the mattress moves.

Each pocket 28 is approximately 4 inches deep and each cell 35 is approximately 4 inches deep. It has a height of 203.2 mm (8 inches). Each quadrilateral has approximately 1 It is 27 mm (5 inches). When expanded, this square cell forms a hemispherical end. This minimizes wall thickness shrinkage.

This pine tress 25 is divided into five areas. formed by two rows a and b Region I, indicated by reference numeral 41, is the head region. This area is the top of the bed It extends from almost to the neck of the person lying on the bed. formed by rows c-e Region 2 designated by reference numeral 42 is the shoulder region. This area lies on the second bunk It is located below the shoulder area from the waist to the neck. formed by one row f Region 3, designated by reference numeral 43, is the waist region. This area lies on the pine tress It is located on the lower side of the waist of the person who is sitting. Formed by rows g, h, i and j and sign Region 4, designated 44, is the buttocks region. This area is for people lying on pine tress located on the buttocks and underside of the pelvis. Formed by ~0 in the horizontal row and indicated by the code 45 The fifth and final region is the foot region. This area is the legs of the person lying on this bed. and catch the feet. Four consecutive lateral seals 46 seal the air gap between adjacent cells. In this way, the pine tress is divided into five areas 41 to 45. Ru.

Each region 41-45 has an air connection or hose designated by 50.

This connects the area to the air supply pump and housing 90. This compressed air A source supplies air to each area to bring those areas to a predetermined pressure level. maintain. If the pressure in the area is too high, connect the connecting hose 50 to each area. Pressure regulators R8 to R (Fig. 6) opened to release air to the atmosphere. Sea urchin. If the air pressure is too low, the pressure regulators installed in each area will open. connect an air pump to the hoses 50 assembled in that area to Direct air into the area. each region, each row and cell that forms it, and The preferred air pressures are shown in the table below.

Area Body part Row Water column pressure Mercury column pressure 1 Head a, b 101. 6mm (4in,) 7.5mmHg2 Shoulder c-e 152.4m m (6in) 11.2 mmh3 waist f 279.4 +nn+(lli n) 20.5 mmHg4 Buttocks g-j 203.2 mm (8 inches) 14.9 mmHg5 Foot k~o 101.6 ma+(4io) 7. 5 mmHg region 1 and region 5, i.e. head region and foot region, combined By doing so, a minimum of four different pressures are used for five regions. others For this purpose, the head region and the foot region are connected to a common pressure regulator R8.

When a person lies on the pinerest 25, the pressure in each area increases due to their weight. stop Each pressure regulator R3 to R4 operates, and the pressure in the area becomes the set pressure of the pressure regulator. Evacuate air from each area until When people leave the pine tress, their respective territories The pressure in the area decreases. Pressure regulator RI’ connected to each region = Rs is the region Supply air to each area until the pressure is reestablished.

This pine tress is wrapped with a cover 30. This cover has a top pad of 65 and a denim cover material 66. This top pad has an 8-way stretch weave Contains two plies 68.69 of fabric with unwoven curly filling 70 between them is sandwiched. This filling is made of crimped polyester fibers and compressed It is preferably approximately 1 inch thick when unfilled. Ori The 8-way stretch woven fabric is designed to fit around shoulders and any other prominent body parts. to be able to sink into the pine tress and to avoid being constrained by the material. This minimizes the ischemic force on prominent parts of the body. ensure that it has only a limited impact. The filling 70 is between the body and the vinyl pine tress surface. Allow air to flow freely between them. This filling is 8-way stretch woven fabric 6B, 69, and these fabrics are arranged alternately at the edges as shown at 71. It is sutured. This edge is sewn to the denim cover material 66.

Denim cover material wraps around the sides and bottom of the pine tress. denim cover material A zipper as shown at 72 is provided to connect the upper and lower parts of the The pad 65 and the entire cover 30 can be easily removed, replaced, and cleaned whenever It is preferable that the

A method of forming pine tress 25 is shown in FIG.

As mentioned above, this pine tress has three separate sections each having five rows. It is made as a minute. These parts are not the same. This is because each pine tress This is because the seals between adjacent areas in the part are different.

For example, in the pinerest portion 25a constituting the foot region 5, five horizontal rows There are no lateral seals 46 in between. The central part 25b has one lateral seal 4 Cultivate 6. This seal extends the length of the row and extends from one extreme row to the other. It is located between the next row, i.e. between rows f and g in the entire pinetress.

The third pinerest portion 25c has one lateral seal 46, which and C. According to an embodiment of the invention, all three parts are one It can be manufactured using a die, that is, a forming tool 75. This tool 75 It is shown in FIG. Multiple pockets to form pocket 28 in the pine tress A cut 76 is provided.

In the preferred embodiment of the tool, 35 pockets 76 are arranged in five rows of seven pockets. Can be arranged in horizontal rows. The bottom wall 77 of the tool is formed using a A hole is formed so that a vacuum can be drawn from the bottom wall. Each pocket 7 The sidewalls 78 of 6 terminate in the upper planar portion 79 of the die. crossover of pocket 76 At this point, this upper plane portion 79 is formed with a recess as shown at 80, so that the outer surface of the die is All the intersections except for the side wall portions form recessed intersections. Using the forming tool 75 In use, inserts are placed in these recesses 80. these inserts 81.82 takes one of two forms. These are star-shaped and recessed 80, a pair of parallel square-shaped channels 81a is formed on its top surface, or a pair of intersecting 4. It has square shaped channels 82a and 82b. Insa An insert such as a cutter 81 is positioned in one of the recesses 80 and the tool is inserted into the pine tray. If used to form a half-break of the base part, as described in more detail below In addition, the channel 81a of the insert 81 is flat in the half of the formed pine tress. form a passageway. This insert is where the laser beam seal 46 is located. used in places. Alternatively, an insert such as insert 82 may be inserted into the die. A tool is used to position within the recess 80 to form a pine tress half-break. The formed half of the pine tress has an intersecting passage, and this intersecting part is This results in four air passages being formed between all four pockets.

In forming the pocket, a vinyl sheet is placed across the tool and moldable It is heated in conventional equipment until the condition is reached. Vacuum pressure is then applied to the material. The material is stretched and drawn into the pocket 76 of the forming tool 75. Inside the mold When the vinyl is drawn into the insert 81, the vinyl is inserted into the four square groups of the insert 81, i.e. In the channel 81a or in the square channel 82a of the insert 82 be drawn into. This creates an air passage 27 (see Figure 3A) between adjacent pockets. and FIG. 3B) are formed. Formed with two identical vinyl sheet forming tools These two sheets are then stacked on top of each other with the pockets on opposite sides. . An electric sealing die is used on the adjacent sheet to approximately 6.35mm (1/ 4 inches) to form a seal 29.46 between the pockets. Seal 29 is adjacent The locations of channels 81a, 82a and 82b between the cells or pockets that rather than forming, these channels remain open and separate between adjacent pockets. A groove, that is, an air flow path 27 is formed in the groove.

When using Pine Torres 25, Pine Torres should be used almost as shown in the table above. It is expanded to a pressure value. People lying on pinerests should put their lower back on the 6th seat. position it so that it is above the row f, which is the row row. This row is located in the lumbar region and other is expanded to a higher pressure value than the region of This results in pine tress The lumbar region of the person lying on top is positioned relatively high, resulting in good spinal alignment At the same time, the entire body of the person lying on the pine tree from head to toe can be seen. You can achieve a state of alignment with your body. Aligning the spine means the person is relaxed. The position of your spine when you stand with your feet approximately 30.5 cm (12 inches) apart. This means obtaining an aligned state. The pine stress of the present invention is based on this alignment of the spine. When the person lies on their back or on a pinerest, the lateral force is applied to each area. This alignment of the spine is achieved and maintained. person lying or supine When lying down on a pine tree, a person lying on a pine tree may move on the pine tree. When tossing and turning, this pinerest connects the air pump and flow control device 15. Therefore, adjust the pressure to maintain the pressure in those areas at the pressure values mentioned above. This is how it works.

When a sleeper turns over from one position on the bed to another, the The air is moved and flows from the newly occupied cell to the previously occupied cell. It will be done so. This air is directed towards or towards the regulator valve RI”’=R-. It flows from these regulator valves.

In order to make this body movement easier and to relax it, the dimensions and shape of the grooves 27 between the cells, and the regulator valve R+""" R4 The flow rate through the bed is a critical factor in bed performance.

Air pumps and air flow controllers Air pressure in each cell is determined by an air pump housed in housing 90 and air flow. It is controlled by a quantity control device 15. Structure of this pump and flow control device 15 The system is equipped with only one electrical cord 91 and four air supply lines. These extend from the housing 90. Pressure in each of the five areas of pine tress pressure regulators R1 to R4 that control the pressure regulators, and a pump that supplies compressed air to the pressure regulators. The surge check valves Cv1 to Cv4 are all housed in the housing 90. Ru. Further, this housing 90 is connected to the pump and, as will be described below, from the pump. Contains a solenoid and clock to control air flow to the tress. child The pump and control circuit are shown schematically in Figure 6 and the structural diagram is shown in Figure 9. is shown.

An air supply line or conduit 50a from the air supply pump.

Air is supplied to the pine tress 25 through 50b, 50c, 50d and 50e. An air flow control device is shown schematically in FIG. As shown here, The device includes a constantly driven electric motor 97. This electric motor is reciprocating The piston pump 100 is driven. This pump runs through air lines 50a-50e. It operates to supply air to each area 41-45 of the pinerest.

Pressure regulators R1 to R4 are arranged between the pump and each region, and the pressure regulators R1 to R4 are arranged between the pump and each region, and are The pressure value is maintained in each area. Pressure regulator R8 is desired and set Air is supplied to both the foot and head regions 45,41 at a pressure value set. This is Ryōryō Two air lines 50a lead to the area.

50e are connected via the common line 101.

Each of the pressure regulators that supply air at the set pressure value to each area and the air line that leads to each area. Surge check valves Cv1 to CV4 are arranged between the ins and the ins. this The function of these check valves is to prevent excessively high pressures, as explained in more detail below. The purpose is to prevent air from escaping from any area when force is applied. . Such excessive pressure can occur, for example, when a person sits on the edge of a bed or When you get up and watch the TV on your bed, for example, or when two people It also occurs when weight is applied to the area. In such cases, surge check If there are no valves CV 1 to CV a, the air in any area will flow out and The pine tress produces eaves.

As discussed in more detail below, the connections and construction of surge check valves are air pressure is set such that regulators R1-R4 are set to release pressure from the area. When some multiple pressure is exceeded, such as 1.7 times the constant pressure, these The valve closes to prevent air from leaving the area.

Pump driven by electric motor, pressure regulators R1-R4 and surge check In addition to the valves Cv to Cv4, an air flow control device housed in the housing 90 Station 15 includes two solenoid operated valves 5QL-1 and 5QL-2. this It operates between these pumps and the pressure regulator R+"" Ri. Furthermore, this device 1 5 includes a clock T, which can control the electrical energization of solenoid 5QL-2. Wear. The first solenoid 5QL-1 always It functions to prevent air flow from areas 41-45 of pinerest 25.

The second solenoid C0L-2 works with a clock and pressure regulator to generate a high pressure pulse of air. Provides a regular and constant boost of water to the shoulder and buttock areas of the pine tress However, if a person lying in bed loses normal position over a long period of time, e.g. during a night's sleep, This is done to prevent it from gradually sinking in from its original position. often asleep It can be seen that people sink lower than their normal position. This boost device eye The goal is to return the sleeping person to their normal position.

To achieve this operational feature, the air flow control device of FIG. 6 is operated periodically. Configured to inject air pulses into shoulder area 42 and buttock area 44 of the pine tress. move.

This pressure pulse may be emitted for 6 seconds and then stopped for 60 seconds. can be operated so that However, it is given to the volume of all regions. to such a level that the person lying on the pinerest feels an increase in pressure when Not strong enough to increase measurement pressure in the area. However, it is sinking from the normal height position. strong enough to return the person to the normal height of the pine tress after .

air pressure regulator Pressure regulators R3-R except for the pulse air connections leading to pressure regulators R1 and R2 1 are all the same and are shown in FIG. Each pressure regulator is a diaphragm A type pressure regulator that Maintaining a relatively low air pressure inside the air pine tress within a relatively narrow parameter range It operates like this. Each pressure regulator R2-R4 is controlled by a flexible diaphragm 1!5. upper chamber 113 and lower chamber 114 (right side and lower chamber in FIGS. 7 and 8, respectively) It includes a housing 112 that is divided into a left side). The diaphragm 115 has an outer peripheral edge. It is clamped between two parts 112a and 112b of the housing, which These parts form the upper and lower chambers of the regulator. diaphragm 115 The inner portion is connected to a rigid piston 116. This piston is the regulator housing It is configured such that it can be moved inside the ring 112. Piston 11B is a piston It is connected to rod 118. This piston rod is housed in the upper chamber 113. It is designed to be able to move inside the cylinder 119. this cylinder has one outlet passage 120 open to the outside of the housing, and an upper chamber 11. It has an outlet passage 123 of II2 which is open toward the inside of II2. fixie The connecting rod 11B is formed in a stepped manner, and its large diameter portion 121 extends through the passage 120. It is possible to move across the passage and block the passage at a position as shown in Figure 7, or Otherwise, the piston 116 moves toward the lower chamber 114 from the position shown in FIG. 7 and shuts off. It is now possible to cancel the . Due to the large diameter portion 121 of the piston rod 118 When this block is removed, passage 120 opens the pressure regulator's pump air line inlet. Communicate with Qi. A second passage 123 through the cylinder is a pressure regulator from the pump. [Population] 22 is connected to the upper chamber 113 of the regulator. The upper chamber 113 of the pressure regulator is Connect to appropriate one of surge check valves Cv, ~Cv4 through boat 125 It has an exit boat 124.

The lower chamber 114 of the pressure regulator accommodates a compression spring 117. This compression spring Adjustment screw 126 installed in screw hole 127 of force regulator and piston 1 16. This screw 126 is screwed into the housing or is screwed out to push piston 116 against end 128 of cylinder 119. Control the power to attach. By l1m of this screw, therefore the piston 116 In order to move the piston 116 by adjusting the spring force acting on the upper chamber 1 13, and therefore in the area of the pine tress to which the pressure regulator is connected. The air pressure at that point is determined. The pressure inside the upper chamber 113 is A force smaller than the force applied to the piston 116 is applied to the large diameter portion 12 of the piston 11B. 1 causes the exit boat 120 to close. Through this, air population 122 pressure flows around the piston 118 and through the outlet boat 124 to the surge check. It drains into the valve CV, to CV4 and pine tress regions.

The pressure in the upper chamber 113 exerts a greater force on the piston 116 than the spring 117 , the large diameter portion 121 of the piston 118 opens the exit boat 120 and at the same time 124 is blocked by the lower large diameter portion of the piston 118. This is it Pressure flows through the air port 124 around the piston 118 and into the outlet boat 12. 0, while the pressure in each area of the pine tress is at the exit boat indicated at 124. Since it is closed, it is effectively blocked.

Because the piston 116 is moved inside the lower chamber 114, the lower chamber 112b is maintained at atmospheric pressure through a small air leakage passage 130. be done.

In the preferred device, for the shoulder and buttock areas of the pinerest. It has been found appropriate and desirable to apply pneumatic pulses periodically. Ta.

To periodically pulse high-pressure air to these areas of the pine tress, The pressure regulators for these two areas are equipped with boats 131. these boats is the lower chamber 114 of the pressure regulator (R1 and R,) through the air supply line 132. and solenoid valve 5QL-2 is connected. This solenoid valve 5QL-2 always sends light through the surge chamber 162 when its solenoid 129 is energized. A lower chamber 132 can be connected to the lower chamber 114 of the pressure regulator. solenoid valve When the solenoid 129 of B5QL-2 is energized, high pressure air, which is the pump pressure, is released. It is connected to the lower chamber 114 of the pressure regulator, and this pressure is assisted by the spring 117 to the upper chamber. The pressure becomes stronger than the pressure in chamber 113. Through this pressure trenoid valve 5QL-2 Once applied to the lower chamber 114, the piston 116 is moved to the position shown in FIG. In this case, the air pressure from the pump, which is used as the pump pressure, is applied to the air passage 122 and the upper Air is supplied through the chamber 113 to the air passage 124 and the pinerest. solenoid Solenoid 129 of valve 5QL-2 is controlled by clock T. This watch is Conductive cycle of solenoid 129 of solenoid valve 5QL-2 for 1 to 15 seconds and a shut-off cycle of 30 to 180 seconds.

In one preferred embodiment, the clock causes solenoid 129 to conduct for six seconds. It is then energized periodically through a 60-second de-energization cycle. At this time It uses a floor plan and has a pressure capacity of 129.5 cm (51 inches) in the water column and If you use a pump with an air flow rate of 201/min at atmospheric pressure, Surge pressure in any area of the pine tress can be caused by a person lying on the pine tress pressure is not sustained long enough to feel the pressure. . However, this pressure and air flow may cause the body to roll over and move on the pine tress. After the air is forced out of each area of the pine tress, even a very heavy person can This shall be sufficient to return the stress to the standard height position.

surge check valve Conduit 5 leading to each pressure regulator outlet 124 and each region 41-45 of the pine tress One of the surge check valves CVr to Cv4 is arranged in the air flow path between 0 and 0. Ru. These surge check valves ensure that the pressure in the area should be maintained at that area. Pressure that is a predetermined multiple of the normal pressure value set by the pressure regulator, e.g. 1.7 times the pressure Whenever the force is exceeded, it closes and air flows out from any area of the pine tress. It functions to prevent Such high pressure in the area may be caused by e.g. Occurs when standing up on one's knees or sitting on a mat. for a long time If you continue to stand or sit on the pine tress, please use the surge check valve Cv1. ~ Without Cv4, the pine tress will eventually flatten (wither, i.e. develop eaves) in that area. I feel like it. Surge check valves CVr~Cv, depending on this high pressure, A pressure is established and set in that area by a pressure regulator, i.e. a predetermined normal pressure. Air flow from any area closed while the pressure exceeds a predetermined multiple of the value It also prevents leakage. In the preferred embodiment, this multiple is between 1.3 and 2.0 of the set value. This is determined by the area to which it is applied.

The surge check valves Cv1 to CVa are all the same. typical surge Check valve Cv1~CV.

are shown in FIGS. 7 and 8. This surge check valve has a housing 141 with a diaphragm 142 and a closing valve 14 within the housing. 3 is placed. The diaphragm 142 is fixed to the housing at its outer periphery; Further, it is fixed to the piston rod 142a of the piston rod 144 at the center.

This piston rod 144 extends downward from the piston 142a, that is, in FIGS. It extends to the left as seen in FIG. The closing valve 143 is a flat round plate. Including. Airflow is facilitated by segments machined into the periphery of this plate. It is now possible to impose Also, a flat circle fixed on the surface of this plate The circular abutment part 1 of the housing 141 is provided with a shaped butyl rubber insert. 45 so that it can be placed in close contact with the top. Compression spring 146 closes the upward force. It acts on the valve plate 143. The second compression spring 151 is the piston 142a A downward force is applied to the piston, and the piston is pushed through the piston rod 144. A large downward force is always applied to the rate 143. This closing valve is that Therefore, it remains open.

The screw 152 is screwed into the housing 141 at the position indicated by the reference numeral 153, and The compressed state of the spring 151 is adjusted by screwing in and out of the screw hole 153. It can be divided.

Each surge check valve CV1-Cv4 has three chambers. Lower chamber 147, middle They are a central (sensitive) chamber 148 and an upper chamber 149. During normal pumping or During idle conditions, the pump pressure at baud 125 is sensed in the lower chamber 147. The closing valve 143 is opened and the pump pressure is passed through the channel 150 to the chamber 14. 8 and 149. Also, the flow ball l-125 leading to the regulator valve and through chambers 147 and 148 and through connector 154 to the area of the pine tress. be swept away.

Surge pressure caused by a sudden increase in load on the pine tress is sensed in chamber 148 . This pressure flows through the excised segment of the closing valve plate 143. This results in a rapid reduction. Also, the pressure in chambers 147 and 149 is increased by the surge in chamber 148. much smaller than the pressure. This surge pressure in chamber 148 acts on piston 142a. , moves diaphragm 142 into chamber 149 to compress spring 151. this As a result, the piston rod 144 loses contact with the plate 143, and as a result, The compression spring 146 is configured to bring the rubber seal 143 into close contact with the contact portion 145. vinegar. This valve then seals and shuts off the flow from the pine tress area. . The increase in surge pressure detected in chamber 148 further compresses spring 151, which The seal at 145 is sometimes held by a compression spring 146. compression spring Any increase in pressure in chamber 148 exceeding the safety limits of surge plate 1 43 is opened and high pressure air flows through the section 145 and 124, 1 It is allowed to be released to the atmosphere through the portions 18 and 120.

The screw 152 is normally adjusted with a screw hole 153 in the housing 141 and 151 exerts a sufficiently large upward pushing force on the plate 143. This allows the servo pressure to be a multiple of 1.3 to 2.0 of the normal area pressure. pressure causes this valve to close.

FIG. 8 shows the closing valve 147 in the surge condition and in the closed condition.

When the surge pressure is released, the pressure in chamber 148 is strong enough to compress spring 151. Then, the piston 142a moves upward and the piston rod 144 closes. It contacts the same valve 143 to open the seating section 145. death The closed valve is then moved back towards the open position shown at number 7.

Air Pump and Air Flow Controller HousingAir Pump and Air Flow Controller The housing 90 (FIG. 1) is shown in an exploded perspective view in FIG. this pump Housing 90 is shown diagrammatically in FIG. 6 with the exception of air lines 50 and 101. Contains all structures.

These are air lines extending between the pump housing 90 and the pine tress 25. be. In particular, this housing 90 includes a concave diaphragm pump 100 and its pump. It houses an electric motor 97 for driving the pump. In addition, the square pressure regulators R1 to R 1, and surge check valves Cv assembled to those pressure regulators, ~ Accommodates CV4. This housing further includes two solenoid valves 5QL-1, 5QL-2, housing their respective solenoids and clock T. these All the parts are the chamber, air line, air passage, and housing as shown in Figure 6. Connected to each other via internal boats.

The housing 90 is divided by a wall portion 156 into a front portion 90a and a rear portion 90b.

The front 90a housing is assembled with pressure regulators R1 to R4 and those pressure regulators. Accommodates attached surge check valves CV, ~CV4.

This front also connects the surge check valve and pressure regulator as shown in Figure 6. It also accommodates air lines.

The rear portion 90b of the housing 90 is divided into an upper portion and a lower portion 157°158. child Each of these parts is formed by separate die castings. These two parts are attached to the They are separated in a sealed manner by a rate 159. This plate has two parts15 7 and 158 are assembled and fixed to each other with screws (not shown). It gets caught between the parts when This screw is located at the bottom 15 of the housing. B and mounting are passed through the corner holes formed in plate 159, and the housing It is screwed into a screw hole (not shown) in the upper part 157 of. Upper part 157 is similar to pump 100 and an electric motor 97 for driving the pump. None of these The mounting is mounted on plate 159. The upper part 157 also has two solenoids Also accommodates valves 5QL-1 and 5QL-2 and clock T (not shown in Figure 9). To tolerate. All of these are mounted on plate 159. housing The lower part 158 of 90 is divided into two chambers, namely a main pressure storage chamber 160 and a surge pressure chamber 162. compartmentalized. These two chambers 160, 162 are connected to the wall i63 of the lower housing 158. separated in a sealed state. Reinforces the lower part of the housing and attaches it to a plate A partition wall 164 is provided for better support. Air passage in this wall 165 and 166 are formed through which air flows to opposite sides of the partition wall 164. to flow freely between the partition walls 164 without creating a pressure difference on opposite sides of the partition wall 164. Do as you please.

An air filter and muffler 167 are arranged on the rear side of the lower part 15B of the housing 90. be placed. This filter and muffler combination filters the air before it enters the pump. Operated to filter air. Filters also keep pumps and controls quiet. It works as a muffler to make it work. The air passing through the filter is through a passageway 168 formed in the lower part 158 of the air intake line 169 and flows vertically upward to pump 100.

Air flow control device operation Inflate the pine tress, and while the person is lying on the pine tress, The operation of the air flow control device used to maintain air pressure in all areas is This is best explained with reference to FIGS. If you refer to these drawings, you can The resin is first expanded by electrically energizing the motor 97. This motor is pump 10 0 and solenoid valve 5QL-1 to shut off the storage tank 160. This series As a result of energizing the continuously operable motor and solenoid, pump 100 intake air through line 168 through filter and muffler 167; It is distributed from the pump through two lines 180.133. line 180 supplies air to pressure storage tank 160, and line 133 supplies air to solenoid valve 5Q. Supply to L-2. Solenoid valve 5QL-2 pumps air when opened from the seal fitting 183 to the surge pressure chamber 162 (Fig. 9). Ru.

Air from surge pressure chamber 162 is passed through lines 132 and 186 at full pump pressure. and are supplied to the intake boats 131 of pressure regulators R2 to R4, respectively. Is it a pump? The air flowing from the main pressure storage tank chamber 160 is supplied from the storage tank to the air line 187. This line connects passages 188, 189, 190 and 1 inside the pump housing. 91 to the air intake boats 122 of the pressure regulators R0 to R4 (Fig. 6). ). The pressure in each region or any one region is determined by the pressure regulator spring 17. While the air is lower than the set pressure determined for the area by setting 7, the air is It is assembled into the pressure regulator through. Surge check valve Cv, ~Cv , flows to. This flow through the regulator is routed through inlet boat 122 (FIG. 7), passage 12 3 into the upper chamber 113 and through the outlet fitting 124 to the servo. Flows to the check valves Cv1 to CVa. After the air enters the boat 125, outlet boat or fitting 15 through open valve seat 143 4 and from there to the muffler zone.

The area where any pressure regulator is assembled is covered by the pressure regulator spring 117. (101.6 mm c 4 inches of water column in the foot area) , 203.2 mm (8 inches) of water column in the buttocks region and 279.4 water columns in the lumbar region. mm (11 inches), water column 152.4 mm (6 inches) in the shoulder area and head When the water column reaches 101.6 mm (4 inches) in the area, the The pressure in the upper chambers 1!3 of the pressure regulator is sufficiently higher than the spring pressure in the lower chamber 114. becomes larger and pushes the piston 116 downward, causing the pressure regulator inlet boat 122 to Move it to the closed position. This boat 122 inside the pressure regulator closes. prevents air from flowing into the upper chamber from the inlet boat 122 and reduces its pressure. The pressure in the area to which the force regulator is connected is maintained.

All areas of the pine tress are fully inflated and defined by pressure regulators R1-R1. Once the normal pressure is reached, the reciprocating diaphragm pump 100 operates continuously. This causes pressure to build up in lines 188-191 leading to the pressure regulator.

This pressure buildup on the pressure regulator causes the piston rod 118 to move downward. This is to release the discharge boat 120, and the entire area of the pine tress is a pressure regulator. Pressure regulator through discharge boat 120 as long as the valve is at the set normal pressure. There is a leakage air flow rate through. The pressure stored in the pressure regulator is also applied to the pump. thus reducing the air flow rate directed. This leakage air flow rate is the same as the flow from the pump. Just balanced, the pressure regulator changes the pressure within the area of the pine tress that supplies the air. Therefore, it does not cause any change.

When a person lies on the pine tress, air is expelled from each area. This is Matsuto until the pressure in the area where the person lies on the mattress reaches the set pressure value of pressure regulators R1 to R4. Continued. In this way, when a person rests on the pine tress, air is removed from the area. is forced out through a pressure regulator that is combined with the Each area of pine tress? This flow passes through the upper chamber 14B of the open surge check valve CVr~CV4. through to the upper chamber 113 of the pressure regulator.

This high pressure causes the pressure regulator piston 116 to move downward and become stronger than the spring 117. stomach. This downward movement of the piston is caused by the regulator boat 122 being in the recess of the piston rod. This continues until it is in communication with discharge boat 120 through solder neck 118a. fixie When the piston and piston rod are in this position, air is released from the pinerest under pressure. It escapes to the atmosphere through a regulator. This air leakage from the pine tress is the pressure regulator through the upper chamber of the device, which is the pressure in the area where the pressure regulator is installed. This continues until the power returns to the set level. At this setting level, the spring 117 is 13, the discharge bow) 120 is blocked by the piston rod 118. The piston and piston rod are raised until they are disconnected.

While the pine tress is being inflated, and after the pine tress area is fully inflated, For example, the meter T is activated periodically for only 6 seconds in a total 66 second cycle. Time When the meter is activated, solenoid valve 5QL-2 opens, which allows air to pump pressure from line 133 through surge pressure chamber 162 and lines 132, 186. and flows into the lower pressure chambers 114 of pressure regulators R1 and R4. this The air from the pump passing through solenoid valve 5QL-2 is at full pump pressure; This is the pressure sufficient to overcome the pressure regulator spring 117, thereby causing these Lift up the diaphragm piston 116 of the valve. This allows the diaphragm Regardless of the pressure in the pine tress area where the pressure regulator is assembled, the piston The pressure regulator valve is in an open position between the inlet boat 122 and the outlet port 124. be done. While solenoid valve 5QL-2 continues to open, this vacuum of pump pressure Qi is supplied to the buttock and shoulder areas of the pine tress.

When this solenoid closes as determined by clock T, the bottom of the pressure regulator The high pressure in the room is passed through a small leak boat 130 formed in the housing 112b. and released into the atmosphere. Occurs while solenoid valve 5QL-2 is energized. Excessive pressure in the buttock and shoulder areas can then be removed by removing the pressure regulator from that area. It is made to return through. This is due to excessive pressure being applied to the upper chamber 113 of the pressure regulator. provided that the pine stress region is connected to the passageway 124, the piston 118 and the pressure regulator outlet. The pressure regulator piston is connected to the atmosphere through the boat 120. This results from pushing the ton 116 downward.

Loss of power to the pump may occur. In such a case, the present invention The air flow control device allows air to escape from the pine tress through a pressure regulator. The pump operates to do so, but there is no pump pressure or air flow to replenish that air. . Eventually, the pine tress will lose virtually all air pressure. This kind of result In order to prevent this, the air flow control device of the present invention uses a solenoid valve 5QL-1. Contains. This solenoid valve is activated whenever the solenoid is energized. Closed and opened when the solenoid loses power and is deenergized. In Figure 6 As can be seen, when power is lost from this source, solenoid valve 5QL -1 is deenergized, which causes air reservoir 160 to pass through air line 200 to atmospheric pressure. be released to. When the pressure in this storage tank 160 drops to atmospheric pressure, the pressure regulator Line 180° from upper chamber 113 Line 200 and solenoid valve 5QL- Air flows through 1. Loss of air pressure through solenoid valve 5QL-1 is the pressure chamber 147 of the surge check valve through the pressure regulator and line 125. and 149. can be conveyed to. Chamber 148 at the opposite end of the surge check valve The air pressure of the pinerest acting on the piston 142a and the diaphragm 142 The piston rod 144 is lowered into the chamber 149 and the piston rod 144 is lowered into the valve plate 143. Remove from contact with. The compression spring 146 presses the rubber seal on the valve plate 143. Immediately place it on top of the abutment 145, and this seal closes to remove water from the pine tress area. Prevent air flow. As a result, the pump and the The loss of power to solenoid valve 5QL-1 is caused by the surge check valve. All valves Cv, ~Cv4 are closed and the pump is re-energized to allow air to pass through the pressure regulator. to the large end chambers 147 and 149 of the solenoid valves cv, -cv. It remains closed until it reaches its final state.

Air bed with adjustable firmness Referring now to FIGS. 1O and 11, a second embodiment of the present invention is shown. There is. This embodiment is different from the first embodiment shown in FIGS. 1 to 9. A special feature is the addition of a function to adjust the firmness of the pine tress compared to the air bed embodiment. The injuries are different. This maintains the same relative pressure on each area of the pine tress while An increase in stiffness or a decrease in stiffness is accomplished by these pressures. It will be done. Structurally, the air bed of the embodiment shown in FIGS. 1 to 9 and the air bed of the embodiment shown in FIGS. The only difference between the air bed of Figure 1 and the air bed of this second embodiment is that Add an adjustable pressure regulator S to the inlet 133, which has four pneumatically regulated Pressure adjusted with screws and springs using pressure regulators R5 to R8 This is because the regulators R and -R4 were replaced. In this case, there are also three added channels. Check valves C8, Ct and C3 are used. Pressure regulator S is shown in Figure 7. This is the same as the pressure regulators R1 to R1. Pressure regulator R* -R* is fluid pressure chamber 3 01 is the adjustment by the screw 126 and spring 130 of the pressure regulators R1 to R4. Substantially the same as pressure regulator R1 or R3 of FIG. 7 except that it has been replaced. It is. Pressure regulators R1 to R4 (Fig. 7) and Rs = Rs (Fig. 11) are the same. Within certain ranges, the same members are given the same reference numerals.

To adjust the pressure of pressure regulators R, ~R8, this pressure regulator has a A pressure adjustment chamber 301 is provided within a cap 302 which is provided with a pressure adjustment chamber 301 . diamond The outer periphery of flamm 303 is fixed between this cap and the bottom of the regulator, i.e. Being pinched. The center portion of this diaphragm 303 is connected to the piston rod 305. It is fixed to the second piston 304, and this piston rod is connected to the diaphragm 115. The piston 116 is connected to the piston 116 .

This air device supplies a regulated low air pressure to the chamber 301 of pressure regulator R5 and Rv. and provide a regulated low air pressure to the chambers 301 of the pressure regulators R1 and R. or to ensure that the respective areas of the buttocks and feet are boosted. It is arranged to provide high air pressure to the chamber of the pressure regulator.

When solenoid valve 5QL-3 is deenergized, the pump pressure in line 133 is passes through the idle valve, is checked by check valve C1, and flows to regulator SI. . This pressure is reduced to the adjusted Sl set point. and reduced pressure flows directly into line 136, passes through check valve C1, and flows into line 135. Enter. This reduced pressure is then detected in chambers 301 of pressure regulators R6 to R1. It will be done. Each of these pressure regulators thus leads to a respective area of the pine tress. It controls the flow rate of the main line.

Solenoid valve 5QL-3 cooperates with clock T to generate a high pressure air pulse or boost. is periodically applied to the shoulder and buttock areas of the pine tress, and If a person lies on a bed and moves for a long period of time, the person will gradually move from the normal position to the pine tree. prevent it from sinking into the

When solenoid 5QL-3 is energized, the pump pressure in line 133 is lube into line 134 and through check valve C1. This style This is checked by check valve C2, but check valve C0 and pressure It passes through regulator SI and flows into line 135. Line 136 is the reduced pressure air air to pressure regulators R5 and R7, line 135 directs air at full pump pressure to pressure regulators R5 and R7. The main pressure in the shoulder and buttocks area is boosted by introducing regulators R6 and R1. The foot, head, and lumbar areas are maintained at normal pressure while Sea urchin.

When the solenoid valve 5QL-3 is deenergized as set by the clock T, the pressure is regulated. The high air pressure in the lower chambers of regulators R1 and R8 is determined by the setting value of regulator S1. The pressure is immediately reduced to a low pressure value. Solenoid (Lube 5QL-3 is energized) Excessive pressure in the buttocks and shoulder areas created when is made to return to the force regulator. As a result, the overpressure is the area pressure in which it is selected. It continues until it is reduced by power.

Between the pressures supplied to each region 41-45 of the bed through pressure regulators R1-R1 In order to determine the differential pressure, a cross section of their chambers 301 is measured between the pressure regulators R5 to R8. The product 301a is different. In particular, the area portion 301a of pressure regulator R3 is R7 It is 4/11 times the area portion 301a. The area portion 301a of the pressure regulator R6 is It is 8/11 times the area portion 301a of R7. And the area part of pressure regulator R3 301a is 6/11 times the area portion 301a of R7. Therefore, the pressure regulator S 1 to the inlet boat 306 of pressure regulator R7. Establish and maintain a pressure of 279.4 mm (11 inches) of water column in the lumbar region 43 If adjusted as such, the pressure in the foot and head areas will be controlled by pressure regulator R6 and Since the area portion 301a between R7 and R7 is different, the water column is 101.6 mm (4 (inch) pressure. Similarly, the area portion 301a of pressure regulator R1 and R1 is Since the area of the force regulator R1 is different from the area 301a, the pressure in the lumbar region is , buttock area and shoulders when the pressure is 279.4 mm (11 inches) in the water column. The pressure in the area is 203.2 mm (8 inches) and 152.4 n in water column, respectively. un (6 inches). The stiffness of the pinerest 25 in the embodiment shown in FIG. 9 is strengthened. If necessary, increase the water column to 330.2 mm (i3 inches), for example in the waist area. When the regulated pressure on the outlet side of the pressure regulator S1 has to be adjusted to the lumbar region. The pressure in area 43 is increased to a pressure of 330.2 mm (13 inches) in the water column. Ru. This pressure increase in the lumbar region therefore simultaneously increases the pressure in the buttocks region in the water column. 8/11X330.2n+m (13 inches) or 240.0 (9.45 inches) ). Similarly, the pressure in the shoulder area is 179.3 mm (7,09 inches) in water column (6/11X13), the dovetail in each area of the foot and head is 120.0 inches in water column. (4.73 inches) (4/11X13). In this way, the relative between regions pressure is maintained at a constant ratio, and this ratio is determined by the relative pressure of pressure regulators R6 to R. This is established by the area portion 301a. of a person lying on a pine tress The alignment of the spine is maintained even as the stiffness of the pinerest increases.

In practice, the pressure regulator S1 in the embodiment of FIGS. 10 and 11 has a pressure of FIG. It differs from regulators R3 and R4 in the following points. That is, the slot adjustment screw 12 6 has been replaced with an adjustment knob (not shown) that can be manually operated more easily. This is attached to the lower end of the screw. Pressure at all other points Regulator SI is the same as pressure regulators R6 and R1.

Although only a limited number of embodiments of the present invention have been described, those skilled in the art will be able to understand how to implement the invention. It will be appreciated that other modifications and variations can be made. Furthermore, the present invention Although described with respect to a seating system, vehicle seat, It can be applied to body support devices of that type including other furniture. Therefore below It is not intended that the invention be limited other than as set forth in the scope of the claims.

FIG.6 FIG, I.O. r@IIi! Smoke inspection report

Claims (20)

[Claims] 1. A device that supplies air at different pressure values to multiple regions of a body support device. hand, an air pump with an inlet and an outlet, and the air pump is installed with a built-in housing, an air filter attached to the housing; , at least three pressure regulators each having an inlet and an outlet; is built in the housing, and the air is passed through the filter from the outlet of the housing to the front. from the outlet of the pump to all inlets of the pressure regulator. a passage means for supplying permeable water; A device that supplies air at different pressure values to multiple regions of a body support device. 2. 2. The apparatus of claim 1, wherein a plurality of A surge check valve and the air from each outlet of the pressure regulator are connected to the surge check valve. passage means within said housing for feeding each of the check pulps; air of different pressure values for the plurality of regions of the body support device, further comprising: A device that supplies air. 3. 2. The apparatus of claim 1, wherein each of said pressure regulators comprises a diaphragm. Different types of pressure regulators for multiple areas of the body support device A device that supplies air at a pressure value. 4. 3. The apparatus of claim 2, wherein each of the surge check pulps Eargram check pulp for multiple areas of body support device A device that supplies air at different pressure values. 5. 3. The apparatus of claim 2, wherein each of the surge check pulps diaphragm check pulp, each pressure regulator is a diaphragm pressure regulator Air at different pressure values is supplied to multiple regions of a body support device characterized by supply device. 6. 2. The apparatus of claim 1, wherein each of said pressure regulators has an adjustable pressure force regulators, and that all these pressure regulators are adjusted pneumatically. A device that supplies air at different pressure values to multiple areas of a body support device. . 7. 2. The apparatus of claim 1, wherein each of said pressure regulators has an adjustable pressure force regulators, and the adjustments of all these regulators are interconnected and adjusted simultaneously. Air at different pressure values for multiple regions of a body support device characterized by A device that supplies 8. 2. The apparatus of claim 1, wherein each of said pressure regulators has an adjustable pressure pressure regulator, and the adjustments of all pressure regulators are interconnected and these adjustment of the regulator so that the output from the regulator remains at the same relative pressure value. Different pressure values are applied to multiple regions of the body support device, which is characterized by: A device that supplies air. 9. 2. The apparatus of claim 1, wherein the housing has front and rear sections. The rear chamber is divided into upper and lower rear chambers. The upper and lower rear chambers are gas-tightly separated by a mounting plate, and the pump is mounted on this mounting plate, and the pressure regulator is mounted on the front. supplying air with different pressure values to multiple regions of a body support device characterized by equipment that supplies 10. 10. The apparatus of claim 9, wherein the device is attached to the mounting plate; a small volume operable to control air flow through said passage means within said housing; Multiple regions of a body support device further comprising at least one solenoid A device that supplies air at different pressure values to the air. 11. A device that supplies air at different pressure values to multiple regions of a body support device. So, Consists of an air pump with inlet and outlet, front and rear, and rear The housing is divided into a lower rear part and an upper rear part, and the upper part of the housing is divided into a lower rear part and an upper rear part. a mounting plate located between the rear and the lower rear; the pump is attached to the mounting plate; an air filter attached to the housing; and an air filter attached to the front portion of the housing. at least three pressure regulators installed; is built in the housing and directs air to the filter from the outlet of the housing. through the pump to the inlet of the pump, and from the pump outlet to all of the pressure regulators. passage means for feeding the material to the entrance of the container. A device that supplies gusts of air with different pressure values to multiple regions of a body support device. 12. 12. The apparatus of claim 11, wherein the housing includes a plurality of surge check pulp and air from each of the pressure regulators to the surge check passage means in said housing for supplying each of the pulps; air of different pressure values for the plurality of regions of the body support device, further comprising: A device that supplies air. 13. 12. The apparatus of claim 11, wherein each of the pressure regulators is a diaphragm. Differentials for multiple areas of body support equipment characterized by being a ram type pressure regulator. A device that supplies air at a pressure value of 14. 13. The apparatus of claim 12, wherein each of the pressure regulators is a diaphragm. It is a ram-type pressure regulator, and each surge check valve has a diaphragm-type check valve. different pressures for multiple regions of the body support device, characterized in that it is a check valve; A device that supplies air with a force value. 15. 12. The apparatus of claim 11, wherein each of the pressure regulators is adjustable. It is a pressure tuner, and the adjustment of all these pressure regulators is performed by pneumatic pressure. Supplying air at different pressure values to multiple regions of a body support device characterized by Device. 16. 12. The apparatus of claim 11, wherein each of the pressure regulators has a pressure inlet. and pressure outlet, and all these pressure regulators The regulators are adjusted simultaneously, during which the same relative pressure value is output between the pressure regulators. air of different pressure values for multiple regions of the body support device characterized in that it is maintained A device that supplies air. 17. 12. The device according to claim 11, wherein the lower rear portion of the housing has two pressure chambers, one pressure chamber being connected by said passage means to all said pressure regulators. the other pressure chamber is connected to the inlet and the other pressure chamber is connected to all of the pressure regulators by said passage means. Multiple body support devices characterized in that the ports are connected to a small number of inlets. A device that supplies air at different pressure values to several areas. 18. 18. The apparatus according to claim 17, wherein the other pressure chamber is separated by a passageway. interconnected with the pump, and the passage is selectively opened and closed by a solenoid valve. The body support device is characterized in that it is configured to A device that supplies air at a pressure value of 19. 19. The apparatus of claim 18, wherein the solenoid valve is For multiple tilting of a body support device, characterized in that the body support device is attached to a support plate. A device that supplies air at different pressure values. 20. 18. The apparatus of claim 17, wherein the solenoid attached to the plate further comprising a noid pulp, the solenoid valve selectively increasing the one pressure chamber. Multiple regions of a body support device characterized in that they are operable to release air. A device that supplies air at different pressure values to the air.