JPH067733U - Air mattress equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To smooth the wavy massage operation performed by expanding or contracting a plurality of air cells sequentially or alternately and shorten the full expansion time at that time. [Structure] Multiple air cells 1-1, 1-2 ... 1-N
The rotary valve 5 for controlling the air supply to the main air supply through hole 22a for injecting a large amount of air from the air pump 4 into a specific air cell and the sub air supply through hole 22b for injecting a small amount of air into the next air cell. And a rotary valve is rotated to inject a large amount of air from the main air supply / permeation hole 22a toward one air cell to fully expand the air cell, and at the same time, to a sub air supply / permeation hole in the adjacent air cell. A small amount of air was injected from 22b so that the air cell could be semi-expanded.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an air mattress device which can be used as a usual bedding mat having an air cushioning property and can perform a massaging action when desired.

[0002]

[Prior art]

 As a device for massaging the back of the body in a sleeping position, a mechanical device in which a rubbing roller moves and an pneumatic device in which an air cell expands and contracts in a wavy manner are known. Among them, pneumatic devices are safe and comfortable because they have excellent cushioning properties. In recent years, for example, mattress devices utilizing aerodynamic force, such as those found in Japanese Utility Model Publication No. 3-27631, have been favorably used. Has reached the end.

[0003] A conventional mattress device of this type includes a pad formed by connecting a plurality of air cells (air chambers) in the width direction as described in the above publication, and compressed air for each air cell of the pad. A control device for controlling supply and discharge of the compressed air is supplied to the plurality of air cells in a wavy manner by the control device to perform a massage action.

[0004]

[Problems to be solved by the device]

 However, in the conventional device as described above, air is sequentially injected into a plurality of air cells, and when the expansion of one air cell is completed, the air injection is transferred to the next air cell and the air in the previous air cell is forced. It is designed to be discharged to. Therefore, only the air cells that have been inflated by injecting air will locally project from the surface of the adjacent air cells.For example, when the inflated part moves from the head of the body to the shoulder, The inconvenience of a sudden drop occurs.

In addition, since the air is discharged one by one into the air cells from which air has been discharged, there is almost no air in the air cells to be expanded next, and it takes a considerable time to reach full expansion. In fact, a large volume of compressed air source is needed to provide a quick wavy massage.

The present invention provides an air mattress device which does not have the above-mentioned inconvenience and can perform a smooth massage with a small capacity compressed air source or an air pump.

[0007]

[Means for solving problems]

 The present invention solves the above-mentioned problem by injecting a small amount of air into the next air cell at the same time while inflating one air cell at the time of full expansion. A plurality of elongated air cells are connected in the width direction. An air mat that connects an air tube for air supply and exhaust to each of the air cells, and a rotary valve that controls the air supply and exhaust of each air cell between each air tube and the air pump. -A mattress device, wherein the rotary valve has an air supply hole connected to an air pump at a central portion thereof, and a plurality of air supply and exhaust holes connected to the air tube at equal intervals along a circle centered on the air supply hole. A stationary plate provided, a central hole that faces the inner surface of the stationary plate and communicates with the air supply hole, and a through hole that communicates with each of the air supply and exhaust holes are provided. On the opposite surface of the intermediate plate with the small diameter through hole and the rotating plate integrated with the intermediate plate, the through hole adjacent to the small diameter through hole is the main air through hole, and the main air through hole and the intermediate plate A main air supply groove communicating with the center hole of the main air supply groove is provided, and a sub air supply groove communicating with the main air supply groove to guide a small amount of air to the adjacent small diameter air passage, and the main air supply through hole and the small diameter air passage. And a rotary plate provided with a long arc-shaped exhaust groove communicating with a plurality of remaining through holes other than the sub-air-feed through holes, which are holes, and further detects the position of each through hole of the intermediate plate. A sensor such as a transparent position indicating plate, a sensor such as a transparent position detecting photo interrupter, and a sensor corresponding means such as a reference position indicating plate for detecting the stop position of the rotating plate and a sensor such as a reference position detecting photo interrupter. Is provided with detection control means, By rotating the rotary valve, a large amount of air is injected into one air cell from the through hole communicating with the main air supply groove to fully expand the air cell, and at the same time, a small amount of air is injected into the adjacent air cell from the auxiliary air supply groove. The expansion of the air cells connected in series so that the air cells are half-expanded continuously and sequentially, from half-expansion to full-expansion, and after full-expansion, the contraction changes without interruption. It is configured so that both of the two air cells can alternately perform expansion and contraction.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 are a plan view and a perspective view showing the main part of the entire apparatus, and FIGS. 3 and 4 are plan views of an air mat part. FIG. 5 and FIG. 6 show a sectional view and a side view of the rotary valve in an expanded state.

In the air mattress device of the present invention, a plurality of elongated air cells 1 and 1 are arranged in a row in the width direction, and an air tube 2 for supplying and exhausting air is connected to each of the air cells 1, 1. The mat 3, the rotary valve 5 that controls the air supply and discharge of the air cells 1, 1 provided between the air tubes 2, 2 and the air pump 4, and the rotation and position of the rotary valve 5. And a detection control means 6 for controlling the above, and these control systems are housed in the controller body 7.

For convenience of description, the air mat 3 shows a mode in which 11 air cells 1-1, 1-2, ... 1-11 are arranged in series, and the surface of the air mat 3 expands and contracts as shown in FIG. Covered with a flexible urethane foam sheet 8.

As shown in FIGS. 5, 6 and 7 to 9, the rotary valve 5 has an air supply hole 11 connected to the air pump 4 at the center thereof, and is drawn with the air supply hole 11 as the center. A stationary plate 10 having a plurality of air supply / exhaust holes 12, 12 connected to the air tubes 2, 2 at equal intervals along a circle, and the air supply holes of the stationary plate 10 facing the inner surface side of the stationary plate 10. 11 is integrally provided with an intermediate plate 20 having a central hole 21 communicating with 11 and a through hole 22 communicating with each of the air supply / exhaust holes 12, and one of the through holes 22 is provided on a surface facing the intermediate plate 20. The main air supply through hole 22a is a main air supply through hole 22a, the main air supply through hole 22a communicates with the central hole 21 of the intermediate plate 20, and the main air supply groove 31 directly communicates with the main air supply groove 31. A secondary small-diameter through-hole next to the air-through hole 22a. A sub air supply groove 32 for guiding a small amount of air from the main air supply groove 31 to the air supply through hole 22b, and a plurality of remaining through holes 22 other than the main air supply through hole 22a and the sub air supply through hole 22b. The rotary plate 30 is provided with a communicating long arc-shaped exhaust groove 33. A large amount of air is injected toward one air cell 1 from the main air passage hole 22a communicating with the main air supply groove 31 to fully expand the air cell, and at the same time, the sub air supply to the adjacent air cell 1-N is performed. The structure is such that a small amount of air can be injected from the air holes 22b to semi-expand the air cell 1-N.

Then, a transparent position display plate 24 having transparent portions 23, 23 showing respective positions of the respective through holes 22a, 22b ... 22n of the intermediate plate 20 which is a rotating portion of the rotary valve 5, In the reference position of the plate 30, that is, in the air tube 2 of the first air cell 1-1, the main air supply through hole 22a communicating with the main air supply groove 31 of the rotary plate 30 is connected to the air supply / exhaust hole 12a of the stationary plate 10. A reference position display plate 35 having a transparent portion 34 for displaying the position in communication is provided, and the position of the rotary plate 30 can be detected by the transparent position detecting photo interrupter 25 and the reference position detecting photo interrupter 36. By operating the detection control means 6, the rotary valve 5 can be controlled by a designated program. In FIGS. 5 and 6, reference numeral 40 is a forward / reverse rotation motor, and 41 is a speed reducer.

According to the air mattress device of the present invention configured as described above, a massaging operation of a waveform for sequentially expanding and contracting the air cells 1-1, 1-2, ... An air mat state in which all air cells 1-1 to 1-11 are held in an expanded state, or a state in which only a specific plurality of air cells in all air cells are inflated and contracted to perform a partial massage, in all air cells It is possible to use the air mat with the air removed from the sheet for desired applications.

Next, the operation procedure of the air mattress device of the present invention will be described. First, the massage operation will be described. If, for example, the air pump 4 is turned on and then the rotary valve 5 is started from the reference position, the pressure air from the air pump 4 is supplied to the stationary plate 10. The air is passed from the air holes 11 through the center hole 21 of the intermediate plate 20 and is sent to the main air feeding groove 31 of the rotary plate 30 which is integral with the intermediate plate. From the main air feeding groove 31 to the main air feeding through hole 22a of the intermediate plate 20. And then injected into the first air cell 1-1. On the other hand, during this time, a small amount of air is injected into the next air cell 1-2 from the sub air supply groove 32 through the sub air supply through hole 22b, the air cell 1-1 is fully expanded, and the air cell 1-2 is partially expanded. Become.

At the time when the air cell 1-1 is fully inflated, the rotary plate 30 is rotated in the clockwise direction of FIG. 11 by one pitch interval of the through holes according to the program of the control device. A large amount of air is injected into the air cell 1-2 from the air supply / permeation hole 22a to fully expand the air cell 1-2, and a small amount of air is injected into the next air cell 1-3 from the sub air supply / permeation hole 22b. At the same time that the air cell 1-3 is in a semi-expanded state, the air supply / exhaust hole 12 of the first fully expanded air cell 1-1 is communicated with the through hole 22 for exhaust and passes through the long arc-shaped exhaust groove 33. It is discharged from the exhaust pipe 50 shown in FIG. 1 and begins to contract. Thus, the intermittent rotation of the rotary plate 30 of the rotary valve 5 causes the air cells 1-2 and 1-3 to sequentially undergo half-expansion, full-expansion, and contraction, thereby performing a massage action of moving the wavy ridges of the air cell. .

The massage action by the wavy ridge can be performed by operating the detection control means 6 to perform concentrated massage by alternately expanding only the Nth air cell and the N + 1th air cell. That is, if the position detection control is performed in which only the Nth and N + 1th air supply holes of the rotary valve 5 are alternately supplied by the intermittent forward / reverse rotation operation of the motor, a partial intensive massage is performed.

Next, when it is desired to inflate all the air cells 1, the detection control means 6 is operated to give an instruction, and then the operation is started, the rotary valve 5 starts continuous rotation and the main air supply through hole 22a. Since air is sequentially injected into the air cells 1-1, 1-2 ... from the sub air supply through hole 22b, and more air is injected than the air leaking from the exhaust groove 33, the air is gradually increased as a whole. The air cell expands to become an air cushioning mat, and after a predetermined time, the rotary valve 5 is stopped in a state where each air supply / exhaust hole 12 of the stationary plate is stopped at a non-hole portion (pressure holding position) of the intermediate plate 20 and is in an expanded state. It is carried out by maintaining. The pressure holding position is detected by the through hole position detecting photointerrupter 25.

The expansion of all the air cells 1 is more efficient if the exhaust pipe 50 shown in FIG. 1 is closed.

Then, by returning the rotary valve 5 to the state of the reference position from the above-mentioned pressure holding state, for example, the first and second air cells 1-1 and 1-2 on the head side of the body are provided. The air inside the other air cells 1-3, 1-4 ... is discharged except that the head side air cell can be used as a pillow, and the air pump 4 is stopped to turn the rotary. When the valve 5 is rotated by two through holes 22, the air in the air cell on the head side is also discharged, and the air mat 3 becomes a seat state.

[0020]

[Effect of device]

 As described above, the air mattress device of the present invention includes a plurality of elongated air cells 1 arranged in a row in the width direction, and an air mattress 3 in which each of the air cells 1 is connected to an air tube 2 for supplying and exhausting air. In the air mattress device, which is provided with a rotary valve 5 for controlling air supply / discharge of each air cell between the mattress 3 and the air pump 4, the detection control means 6 for controlling the stop position of the rotary plate 30 of the rotary valve 5 is used. By the rotation control of the rotary valve 5 based on the original, a large amount of air is injected into one air cell from the through hole 22a communicating with the main air supply groove 31 to fully expand the air cell, and at the same time to the adjacent air cell. Since a small amount of air is injected from the sub air supply groove 32 to semi-expand the air cell, detection For example, as shown in FIG. 12, the massage operation is performed by designating the operation program set in the control means 6, and the semi-expanded air cell 1-6 follows the raised fully expanded air cell 1-5. The subsequent waveforms are sequentially moved, and the air pressure in each air cell is as shown in FIG. 13, so that a smooth massage action can be performed on the back of the body. Moreover, since the air cell 1-6 next to the fully expanded air cell 1-5 is already filled with air to some extent, the next air cell can be fully expanded in a short time, resulting in a fast massaging effect. Not only can it be obtained, but the wavy massage speed can be arbitrarily changed by adjusting the rotation speed of the rotary valve 5.

Moreover, as described above, all the air cells can be expanded or only some of the air cells can be expanded, and the air mat 3 can be used for various purposes.

[Brief description of drawings]

FIG. 1 is a schematic plan view of an entire air mattress device.

FIG. 2 is a perspective view of the entire air mattress device.

FIG. 3 is a plan view of a main part of an air mat portion.

FIG. 4 is a side view of the air mat in an expanded state.

FIG. 5 is a sectional side view of a rotary valve.

FIG. 6 is a side view of a rotary valve.

FIG. 7 is a plan view of a stationary plate.

FIG. 8 is a plan view of the intermediate plate.

FIG. 9 is a plan view of a rotating plate.

FIG. 10 is a plan view of a through hole position indicating plate.

FIG. 11 is a plan view of a reference position display plate.

FIG. 12 is a partial side view showing a massage action.

FIG. 13 is an explanatory diagram showing a pressure distribution in the air cell during a massage action.

[Explanation of symbols]

 1 air cell 2 air tube 3 air mattress 4 air pump 5 rotary valve 6 detection control means 10 stationary plate 11 air supply hole 12 air supply / exhaust hole 20 intermediate plate 21 center hole 22 through hole 22a main air through hole 22b sub air through hole 23 Transparent part 24 Transparent position display plate 25 Transparent position detection photo interrupter 30 Rotating plate 31 Main air supply groove 32 Sub air supply groove 33 Exhaust groove 34 Transparent part 35 Reference position display plate 36 Reference position detection photo interrupter

Claims (1)

[Scope of utility model registration request] 1. An air mat in which a plurality of elongated air cells are continuously arranged in the width direction, and an air tube for supply and exhaust is connected to each of the air cells, and each air cell between each air tube and an air pump. In an air mattress device including a rotary valve for controlling the supply and discharge of air, the rotary valve has an air supply hole connected to an air pump at the center, and the air supply hole is provided at equal intervals along a circle centered on the air supply hole. A stationary plate having a plurality of air supply / exhaust holes connected to the air tube, a central hole facing the inner surface of the stationary plate and communicating with the air supply hole, and a through hole communicating with each of the air supply / exhaust holes; On one surface of the intermediate plate, one of which has a small diameter through hole, and on the facing surface of the rotary plate integrated with the intermediate plate, the through hole adjacent to the small diameter through hole is used as the main air feeding through hole. A main air supply groove is provided that connects the air passage hole to the center hole of the intermediate plate, and a sub air supply groove and a main air supply passage that communicate with the main air supply groove and guide a small amount of air to the adjacent small-diameter through hole. A rotary plate provided with a long arc-shaped exhaust groove that communicates the remaining plurality of through holes other than the through holes and the small-diameter through holes that are sub-air feed holes, and each through plate of the intermediate plate. A sensor corresponding means such as a transparent position indicating plate for detecting the position of the hole, a sensor such as a transparent position detecting photo interrupter, and a sensor corresponding means such as a reference position indicating plate for detecting the stop position of the rotating plate and a reference position detecting photo interrupter. A detection control means composed of a sensor such as the above is provided, and a large amount of air is injected into one air cell from the through hole communicating with the main air supply groove by the rotation of the rotary valve to fully expand the air cell, and at the same time, the adjacent air cell. A small amount of air is injected into the air cell from the sub air supply groove so that the air cell is half-expanded, and the expansion of the consecutively connected air cells is continuously and sequentially changed from half-expansion to full-expansion. An air mattress device characterized by being configured so that both an operation of continuously changing the contraction and an operation of partially repeating expansion and contraction of two air cells can be performed.