JP2011078604A - Respirator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a respirator which is an all face respirator having a fan unit operating interlocking with the breathing timing of a user, has a breathing monitor unit having a diaphragm and a sensor for detecting the movement of the diaphragm, and in which disposing positions of the diaphragm and the sensor and the inhaling and exhaling pressure transferring path to the diaphragm are optimized. <P>SOLUTION: The breathing monitor unit having the diaphragm and the sensor for detecting the movement of the diaphragm is arranged in a fan unit, the space for housing the diaphragm and the sensor is formed in the fan unit independently and separatedly from an air channel, the inside space of a nose cup is in communication to the space of the fan unit via an opening formed in the nose cup and an opening formed in a face body when installing the fan unit and the nose cup in the face body. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention comprises a filter, a fan unit, a face covering the entire face of the user, a nose cup covering the mouth and nose of the user, and a respiratory monitoring device, the filter is attached to and detached from the fan unit, The fan unit is attached to and detached from the face piece from the outside of the face piece, the nose cup is attached to and detached from the face piece from the inside of the face piece, and the fan unit operates in conjunction with the breathing timing of the user detected by the breath monitoring device. It relates to the device.

A filter, a fan unit, a face that covers the entire face of the user, a nose cup that covers the mouth and nose of the user, and a respiratory monitoring device, the filter is attached to and detached from the fan unit, and the fan unit is a face The breathing apparatus is characterized in that the nose cup is detached from the inside of the face piece to the face piece from the outside, the fan unit operates in conjunction with the breathing timing of the user detected by the breath monitoring device. It is disclosed in Document 1.

JP 2009-089794 A

In the breathing apparatus of Patent Document 1, the breathing timing is detected using a breathing monitor apparatus having an exhaust valve and a sensor that detects the movement of the exhaust valve.
A breathing monitor device having an exhaust valve and a sensor for detecting the movement of the exhaust valve requires a sensor to be disposed in the exhaust flow path, so that fine dust or water droplets contained in exhalation adhere to the sensor and the sensor becomes dirty. May deteriorate over time.
A breathing monitor device having a diaphragm and a sensor for detecting the movement of the diaphragm has also been used in a breathing device. The respiratory monitoring device having a diaphragm and a sensor for detecting the movement of the diaphragm has an advantage that it is not necessary to install a sensor in the exhaust passage.
Therefore, the present invention includes a filter, a fan unit, a face covering the entire face of the user, a nose cup covering the mouth and nose of the user, and a respiratory monitor device. The filter is attached to and detached from the fan unit. The fan unit is attached to and detached from the face piece from the outside of the face piece, the nose cup is attached to and detached from the face piece from the inside of the face piece, and the fan unit operates in conjunction with the breathing timing of the user detected by the breath monitoring device. Respiratory device, the respiratory monitor device has a diaphragm and a sensor for detecting the movement of the diaphragm, and the diaphragm, the installation position of the sensor, and the transmission path to the diaphragm of the air pressure fluctuation due to inspiration and expiration are optimal An object of the present invention is to provide an integrated breathing apparatus.

In order to solve the above problems, the present invention includes a filter, a fan unit, a face body covering the entire face of the user, a nose cup covering the mouth and nose of the user, and a respiratory monitor device. The filter is attached to the fan unit, the fan unit is attached to the face piece from the outside of the face piece, the nose cup is attached to the face piece from the inside of the face piece, and the fan unit is linked to the breathing timing of the user detected by the breath monitoring device. The respiratory monitor device includes a diaphragm and a sensor that detects the movement of the diaphragm. The respiratory monitor device is disposed in the fan unit, and includes an air flow path, a diaphragm, A space independent from the air flow path that houses the sensor is formed in the fan unit, and when the fan unit is attached to the face piece, When the nose cup is attached to the face piece, an opening communicating with the opening of the face piece is formed in the nose cup, and when the fan unit and the nose cup are attached to the face piece, the nose Provided is a breathing apparatus characterized in that an internal space of a cup communicates with the space of a fan unit through the opening of a nose cup and the opening of a face piece.
Since the face piece is removed from the fan unit and washed with water, it is desirable that the respiratory monitoring device is disposed not on the face piece but on the fan unit. It is in the inner space of the nose cup that the air pressure fluctuation accompanying inspiration and expiration appears most clearly. Therefore, it is desirable that the diaphragm of the respiratory monitoring device receives the air pressure in the inner space of the nose cup.
The respiratory monitor device is disposed in the fan unit, and a space for accommodating the diaphragm and the sensor is formed in the fan unit independently of the air flow path. When the fan unit is attached to the face body, an opening communicating with the space is formed. When the nose cup is attached to the face piece, an opening communicating with the opening of the face piece is formed in the nose cup, and when the fan unit and the nose cup are attached to the face piece, the inner space of the nose cup is nose. By communicating with the space of the fan unit through the opening of the cup and the opening of the face piece, the installation position of the diaphragm and the sensor, and the pressure transmission path to the diaphragm of the air pressure fluctuation caused by inspiration and expiration, Optimized.

In a preferred embodiment of the present invention, the opening of the nose cup and the opening of the face piece are formed by forming a cylindrical portion surrounding the opening of the nose cup and forming a nose cup around the opening of the face piece. Fan units that communicate with each other by elastic fitting generally use high-strength and hard resin materials in consideration of the fact that high stress is locally generated because screws are used to fix various built-in devices. Manufactured. The face unit fan unit mounting portion is also generally manufactured using a high-strength and hard resin material corresponding to the fan unit. On the other hand, the nose cup is manufactured using a flexible silicone resin material. In order to ensure communication between the opening formed in the fan unit mounting part formed of a hard material of the face piece and the opening formed in the soft material nose cup, the opening of the nose cup is formed around the opening of the nose cup. It is desirable to elastically fit the cylindrical portion and the cylindrical portion formed in the face piece around the opening of the face piece.

It is a front view of the respiratory apparatus which concerns on the Example of this invention. It is a side view of the respiratory apparatus which concerns on the Example of this invention. It is the disassembled perspective view seen from the front of the respiratory apparatus which concerns on the Example of this invention. It is the disassembled perspective view seen from the back of the respiratory apparatus which concerns on the Example of this invention. It is a sectional side view of the respiratory apparatus which concerns on the Example of this invention. It is sectional drawing seen from the back surface and nose cup with which the respiratory apparatus which concerns on the Example of this invention is provided.

A respiratory apparatus according to an embodiment of the present invention will be described.
As shown in FIGS. 1 to 6, the respiratory apparatus A includes a filter 1, a fan unit 2, a face body 3 that covers the entire face of the user, and a nose cup 4 that covers the mouth and nose of the user. ing.
The filter 1 is attached to and detached from the fan unit 2, the fan unit 2 is attached to the face body 3 from the outside of the face body 3, and the nose cup 4 is attached to the face body 3 from the inside of the face body 3.

As shown in FIGS. 3 to 5, the fan unit 2 is driven by a body 2a, a power battery 2b housed in the body 2a, a motor 2c supplied with power from the power battery 2b, and the motor 2c. A centrifugal fan 2d and a control device (not shown) for controlling the operation of the motor 2c are provided.
Air passage 2e extending from the inlet 2e ₁ formed in the connecting portion of the filter 1 to the outlet 2e ₂ through the fan housing portion is formed through the body 2a.
A through hole 2f independent of the air flow path 2e is formed in the body 2a. Diaphragm 2g for closing one end 2f ₁ in proximity to the filter 1 of the through hole 2f is provided. A sensor (not shown) for detecting the displacement of the diaphragm 2g is disposed in the through hole 2f so as to face the diaphragm 2g. The sensor is connected to the control device. A lid member 2h in which a through hole for ventilation is formed covers the diaphragm 2g from the outside of the body 2a. The other end 2f ₂ of the through hole 2f is adjacent to the outlet 2e ₂ of the air passage 2e. The diaphragm 2g, a sensor (not shown), and a control device (not shown) form a respiratory monitor device that detects the breathing timing of the respiratory device user.
LED2i adjacent to the other end 2f ₂ of the through hole 2f is provided. The LED 2i is connected to the control device.
The body 2a of the fan unit 2 is manufactured using a high-strength, hard, opaque resin material in consideration of the fact that high stress is locally generated because screws are used to fix various devices incorporated therein.

The face piece 3 has a transparent resin eyepiece 3a covering the front portion of the face, a silicone rubber face piece 3b covering the top and both sides of the face, and a connecting portion 3c for the fan unit 2. Yes. The eyepiece 3a, the face body 3b, and the connection portion 3c are assembled together. The connecting portion 3c is manufactured using the same hard material as that of the fan unit body 2a, corresponding to the hard unit fan unit body 2a.
A plurality of straps 3d for fixing the face piece 3 to the head are attached to the facepiece 3b.
As shown in FIG. 1 and 6, a pair of exhaust valve assembly 3e having a cylindrical body 3e ₂ to hold the exhaust valves 3e ₁ of the exhaust valve 3e ₁ is provided, at its portion facing the face sides of Sekkaotai 3b Installed.
In the connection portion 3c, openings 3f and 3g are disposed adjacent to each other and independently of each other, and an opening 3h is disposed adjacent to the opening 3g. Opening 3g is surrounded by the cylindrical member 3g _1.
The connection portion 3c is provided with a voice transmitter 3i having an opening 3i ₁ formed in the connection portion 3c, a membrane member 3i ₂ that closes the opening 3i ₁ , and a cylindrical body 3i ₃ that supports the membrane member 3i _2. Has been.

The nose cup 4 has a body 4a made of silicone rubber. The body 4a, a pair of intake openings 4a _1, a pair of exhaust valves connecting cylindrical portion 4a _2, the opening 4a _3, are arranged and speaking tube connection opening 4a _4. Intake valve 4b is attached to the intake opening 4a _1. The opening 4a ₃ is surrounded by the cylinder 4a ₃ ′.

The filter 1 is screwed to the fan unit 2. The fan unit 2 is attached in close contact with the connection portion 3c of the face piece 3 from the outside of the face piece 3 using a hooking claw. The nose cup 4, the exhaust valve connecting cylindrical part 4a ₂ exhaust valve assembly 3e was cylindrical member 3e ₂ elastically fitted into engagement, the cylindrical body 4a ₃ 'connecting portion 3c cylindrical member 3g was _first elastic fit of the, Denkoe vessel connection openings 4a ₄ peripheral wall elastic-fitted to the cylindrical body 3i ₃ of speaking tube 3i and is mounted from the inside of the facepiece 3 in tetrahedral 3. When the nose cup 4 is attached to the face piece 3, a gap is formed between the nose cup 4 and the face piece 3 except for the engaging portions of both.

As can be seen from FIGS. 4 to 5, when the fan unit 2 and the nose cup 4 are attached to the face piece 3, the air flow path outlet 2 e _{2 of} the fan unit 2 communicates with the opening 3 f of the face piece connecting portion 3 c, and the opening 3 f Communicates with the internal space of the face piece 3 through a gap between the nose cup 4 and the face piece 3. As a result, the air flow path 2 e of the fan unit 2 communicates with the internal space of the face piece 3.
As can be seen from Figure 4-5, when the fan unit 2 and the nose cup 4 is attached to the face piece 3, communicating the other end 2f ₂ of the through hole 2f of the fan unit 2 to the opening 3g of the connecting portion 3c of the facepiece 3 and, opening 3g communicates with the opening 4a ₃ of the nose cup 4. As a result, the through hole 2 f of the fan unit 2 communicates with the internal space of the nose cup 4.
As shown in FIGS. 3 to 5, the communication part between the air flow path outlet 2e ₂ and the opening 3f and the communication part between the other end 2f ₂ of the through hole 2f and the opening 3g are shown in FIGS. a cylindrical body surrounding the other end 2f ₂ of are sealed against the external environment by an O-ring disposed in the fitting portion between the cylindrical body surrounding the opening 3f and the opening 3g.
The communication portion between the air flow path outlet 2e ₂ and the opening 3f, and the communication portion between the other end 2f ₂ of the through-hole 2f and the opening 3g pass through the air flow path outlet 2e ₂ as shown in FIGS. boundary wall of the other end 2f ₂ holes 2f is by contacting the boundary wall of the opening 3f and the opening 3g, are cut off from each other. Therefore, a possibility that the communication portion of the air flow path outlet 2e ₂ and the opening 3f is communicated portion and communicating with the other end 2f ₂ and the opening 3g through hole 2f is not.
When the fan unit 2 is mounted on the face piece 3, the LED 2i faces the opening 3h formed in the connection portion 3c of the face piece 3, and the periphery of the LED 2i of the body 2a contacts the periphery of the opening 3h of the connection portion 3c. . As a result, the LED 2i is blocked from the external environment. The LED 2i can be visually recognized from the inside of the face piece 3 through the opening 3h and a portion overlapping the connecting portion 3c of the eyepiece 3a.

The operation of the breathing apparatus A will be described.
When the user wears the breathing apparatus A on the face using the strap 3d, the eyepiece 3a of the face 3 covers the front of the face, and the face 3b covers the top of the face and both of the faces. Close to the face and shield the face from the external environment. The nose cup 4 covers the user's nose and mouth and is in close contact with the face. As shown in FIG. 5, the inner space of the face piece 3 is formed between the first space α outside the nose cup 4 and the inner side of the nose cup 4. It divides into 2nd space (beta).
The first space α communicates with the external environment through the opening 3f, the air flow path 2e, and the filter 1, and also communicates with the second space β through the intake valve 4b. With the second space β communicating with the first space α through the intake valve 4b, communicating with the outside environment via an exhaust valve 3e _1.

When the user breathes, the second space β pressure varies in response to breathing, internal pressure of through-hole 2f which communicates with the second space β varies through the opening 4a ₃ and the opening 3g, the diaphragm 2g displacement To do. A sensor (not shown) detects the displacement of the diaphragm 2g, a detection signal is transmitted to the control device, and the control device recognizes that the breathing device A is attached to the user. The motor 2c is started based on the control signal of the control device, and the centrifugal fan 2d is started.
By the operation of the centrifugal fan 2d, the clean air filtered by the filter 1 flows into the first space α through the air flow path 2e and the opening 3f, and further flows into the second space β through the intake valve 4b. Served for user inspiration. Breath of the user is discharged to the external environment through the exhaust valve 3e _1.
When the displacement of the diaphragm 2g according to the user's inspiration is detected by the sensor, the centrifugal fan 2d is activated in response to a command from the control device, and the displacement of the diaphragm 2g according to the user's expiration is detected by the sensor. Sometimes the centrifugal fan 2d stops upon receiving a command from the control device. As a result, the power consumption is reduced and the exhaust resistance is reduced as compared with the case where the centrifugal fan 2d operates continuously.

Since the respiratory monitor device having the diaphragm 2g and the sensor for detecting the movement of the diaphragm 2g does not need to be installed in the exhaust passage, the respiratory monitor device having the exhaust valve and the sensor for detecting the movement of the exhaust valve is used. In comparison, there is a low possibility that fine dust or water droplets contained in exhalation will adhere, and the sensor is less likely to get dirty, and therefore the sensor is less likely to deteriorate over time.
Since the face piece 3 is removed from the fan unit 2 and washed with water, it is desirable that the respiratory monitor device is disposed not on the face piece 3 but on the fan unit 2. It is in the internal space of the nose cup 4 that the air pressure fluctuation accompanying inspiration and expiration appears most clearly. Therefore, when the diaphragm 2g of the respiration monitor device receives the air pressure in the inner space of the nose cup 4, the operation linked to the respiration timing of the fan unit 2 is optimized.
When the respiration monitoring device is disposed in the fan unit 2 and the space 2f for accommodating the diaphragm 2g and the sensor is formed in the fan unit 2 independently of the air flow path 2e, the fan unit 2 is mounted on the face body 3. An opening 3g communicating with the space 2f is formed in the face piece, and when the nose cup 4 is attached to the face piece 3, an opening 4a ₃ communicating with the opening 3g of the face piece 3 is formed in the nose cup 4, and the fan unit 2 and the nose When the cup 4 is attached to the face piece 3, the second space β, which is the internal space of the nose cup 4, is passed through the opening 4 a ₃ of the nose cup 4 and the opening 3 g of the face piece 3. By communicating with the space 2f, the installation position of the diaphragm 2g and the sensor, and the transmission path to the diaphragm 2g of the air pressure change caused by inspiration and expiration are optimized.

An opening 3g formed in the face piece connecting portion 3c of the hard material, in order to ensure communicated with the opening 4a ₃ formed in the nose cup 4 of a soft member, the nose cup 4 surrounding the opening 4a ₃ of the nose cup 4 It is desirable that the formed cylindrical portion 4a ₃ ′ and the cylindrical portion 3g ₁ formed in the face body 3 by surrounding the opening 3g of the face body 3 are elastically fitted.

The present invention is widely applicable to respiratory devices.

A Breathing apparatus 1 Filter 2 Fan unit 2d Centrifugal fan 2e Air flow path 2f Through hole 2g Diaphragm 3 Face body 3e ₁ Exhaust valve 3g Opening 4 Nose cup 4a ₃ Opening 4b Intake valve

Claims (2)

A filter, a fan unit, a face that covers the entire face of the user, a nose cup that covers the mouth and nose of the user, and a respiratory monitoring device, the filter is attached to and detached from the fan unit, and the fan unit is a face The breathing apparatus is characterized in that the nose cup is detached from the inside of the face piece to the face piece, and the fan unit is operated in conjunction with the breathing timing of the user detected by the breath monitoring device. The respiratory monitoring device has a diaphragm and a sensor for detecting the movement of the diaphragm, and the respiratory monitoring device is disposed in the fan unit, and is independent of the air flow path and the air flow path that accommodates the diaphragm and the sensor. A space is formed in the fan unit, and when the fan unit is attached to the face piece, an opening communicating with the space is formed in the face piece. When the cup is attached to the face piece, an opening communicating with the opening of the face piece is formed in the nose cup, and when the fan unit and the nose cup are attached to the face piece, the inner space of the nose cup is connected to the opening of the nose cup and the face piece. A respiratory apparatus that communicates with the space of the fan unit through the opening. 2. The breathing according to claim 1, wherein the opening of the nose cup and the opening of the face piece communicate with each other by elastically fitting a tube portion formed in the nose cup to a tube portion formed in the face body. apparatus.

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