JP5878084B2 - Respiratory organ - Google Patents

Description

  The present invention ensures wearer's breathing by supplying the wearer with intake gas such as oxygen or air when working in an environment where toxic gas is generated in the human body such as a fire site or a disaster site. Respiratory related.

  A typical prior art relating to a respiratory organ is disclosed in US Pat. The respirator described in Patent Document 1 is mounted on a human body, and an inhalation gas supply device that supplies inhalation gas compressed and filled in a pressure vessel through a flexible intake pipe, and a human body face A face body that is mounted and that guides intake gas from the intake pipe of the intake gas supply device to the mouth or nose, a pressure sensor that detects the pressure of the intake gas in the pressure vessel, and an intake gas supply device, First display means for displaying information relating to the detected pressure, a transmission means provided in the intake gas supply device, for transmitting information relating to pressure detected by the pressure sensor by electromagnetic waves, a face body, provided from the transmission means Receiving means for receiving information related to the pressure of the second surface, and a second display means for displaying information related to the pressure received by the receiving means, provided in the field of view on the face piece. .

  The respiratory device described in Patent Document 1 displays information on the pressure of the inspiratory gas compressed and filled in the pressure vessel in this manner, so that the wearer of the respiratory device can display information on the pressure. This prevents oversight and ensures safety. In addition, when the information about the pressure is displayed not only on the second display means provided on the face body but also on the first display means provided on the intake gas supply device, the second display means has failed. However, further safety can be ensured by obtaining a display of information on pressure by the first display means.

JP 2002-119606 A

  Conventionally, the respiratory apparatus is configured to notify the wearer of the respiratory apparatus of the occurrence of an abnormal situation such as a decrease in the residual pressure of the intake gas in the pressure vessel by outputting a warning sound. However, the conventional respirator is configured such that a warning sound is emitted in a direction away from the wearer, and thus there is a problem that it is difficult for the wearer to hear in a noisy environment. Therefore, there is a problem that the wearer may miss the warning sound, and the wearer may be delayed in noticing the occurrence of the abnormal situation.

  An object of the present invention is to provide a respirator capable of promptly notifying a wearer of occurrence of an abnormal situation by a warning sound even in a noisy environment.

The present invention is a face body that covers the face of the wearer, the face body having a translucent plate member disposed in front of the face of the wearer,
An intake gas supply device for supplying intake gas compressed and filled in the pressure vessel to the face body;
A warning sound output device that is fixed to an outer surface that is a surface opposite to the surface facing the wearer's face in the plate-like member, and outputs a warning sound when an abnormality occurs,
A housing space is formed inside and is fixed to the outer surface of the plate-like member;
A warning sound output device installed in a housing space of the housing and including a warning sound generating unit that generates a warning sound;
The housing includes a facing portion facing the outer surface of the plate-like member, and the facing portion opens in one of the surface directions of the outer surface in cooperation with the outer surface of the plate-like member. The respirator is characterized in that a concave portion that forms a sound emitting space is formed, and a sound emitting hole that connects the housing space and the sound emitting space is formed.

  Moreover, the present invention is characterized in that the casing is fixed to an outer surface of the plate-like member so that the sound emitting space opens in a direction toward the ear of the wearer.

  According to the present invention, a warning sound output device that outputs a warning sound when an abnormality occurs is installed on the outer surface of a translucent plate-like member provided in a face piece. The warning sound output device includes a housing and a warning sound generator, and the warning sound generator is installed in a housing space of the housing. In the housing, a concave portion that forms a sound emitting space that opens in one of the surface directions of the outer surface in cooperation with the outer surface of the plate member is formed in a facing portion that faces the outer surface of the plate member. Furthermore, a sound emitting hole is formed that communicates the accommodation space and the sound emitting space. Therefore, the warning sound generated by the warning sound generation unit is propagated from the opening along the outer surface of the plate-like member through the sound emission hole and the sound emission space, and is output. Therefore, the warning sound can be efficiently delivered to the wearer's ear, so that the wearer can immediately notice the occurrence of an abnormal situation even in a noisy environment.

It is a top view showing composition of respirator 1 concerning one embodiment of the present invention. It is a side view which expands and shows the face body 11 which is a part of structure of the respiratory apparatus 1. FIG. 3 is a block diagram showing an electrical configuration of a notification device 16. FIG. It is a figure which shows the structure of the apparatus main body 70 of the backpack apparatus side alerting | reporting apparatus 61, Fig.4 (a) is a front view of the apparatus main body 70 of the backpacker side alerting | reporting apparatus 61, FIG.4 (b) is a backpack tool. 4C is a top view of the device main body 70 of the side notification device 61, FIG. 4C is a cross-sectional view taken along the section line CC in FIG. 4B, and FIG. It is sectional drawing seen from the cut surface line DD in (b). FIG. 5A is a front view of the face piece side notification device 62, and FIG. 5B is a rear view of the face piece side notification device 62. FIG. FIG. 5C is a cross-sectional view taken along the section line CC in FIG. It is a figure which shows the state by which the face body side alerting | reporting apparatus 62 was installed in the face body 11, FIG. 6 (a) is a front view of the face body 11, FIG.6 (b) is a left view of the face body 11, FIG. 6C is a top view of the face piece 11, and FIG. 6D is a bottom view of the face piece 11. It is a figure which shows the structure of 62A of face body side alerting | reporting apparatuses which concern on other embodiment, FIG.7 (a) is a side view of 62A of facet side alerting | reporting apparatuses, and FIG.7 (b) is in FIG.7 (a). It is sectional drawing seen from cut surface line BB.

  FIG. 1 is a plan view showing a configuration of a respiratory apparatus 1 according to an embodiment of the present invention. FIG. 2 is a right side view of the face body 11 which is a part of the configuration of the respiratory apparatus 1. The respirator 1 according to the present embodiment supplies the wearer with an intake gas such as oxygen or air when working in an environment where toxic gas is generated in the human body such as a fire site or a disaster site. Used to ensure the breathing of the person.

  The respirator 1 according to the present embodiment generally includes a face body 11, a pressure vessel 12, an inspiratory gas supply device 13, an exhalation valve 14, a backpack 15, and a notification device 16 (see FIG. 3). Consists of including.

  The face piece 11 is used by being attached to the head of a human body. In the wearing state, the face piece main body 21 configured to cover the face of the wearer, and the face piece main body 21 are fixed to the wearer's head. It is comprised including the fastening string 22 for doing.

  The face body 21 includes a front plate 31 which is a colorless and transparent plate-like member having a size capable of covering the face of the human body, and the front plate 31 in the mounted state from the wearer's face in front of the wearer's face. And a support 32 that is supported at an appropriate interval. The front plate 31 is a member also called an eyepiece.

  Hereinafter, one surface in the thickness direction of the front plate 31 that faces the face of the wearer in the wearing state is referred to as an inner surface 31a, and a surface opposite to the inner surface 31a is referred to as an outer surface 31b. It shall be called.

  In the mounted state, the front plate 31 is connected to an upper portion 36 that is substantially opposed to the upper half of the wearer's face and a lower end portion of the upper portion 36, and is substantially on the lower half of the wearer's face. The lower portion 37 is disposed so as to face each other, and the upper portion 36 and the lower portion 37 are formed to be bent and connected. Specifically, the lower portion 37 is formed so as to bend toward the inner surface 31 a with respect to the upper portion 36.

  Both the upper part 36 and the lower part 37 are formed in a smoothly curved shape so as to protrude in a direction away from the face of the wearer across the left and right end parts in the wearing state. In addition, a through hole is formed in the lower portion 37 so as to penetrate in the thickness direction in the center portion between the left and right end portions.

  In the central portion of the lower portion 37, a connecting portion to which a later-described valve unit 20 is detachably connected is provided on the outer surface 31b side, and one end portion of the diaphragm 33 is fixed on the inner surface 31a side. A septum holding portion is provided.

  The diaphragm 33 is an annular seal member made of soft rubber having elasticity, and one end is fixed to the diaphragm holding part, and the other end is mounted on both cheeks and the cheeks from the upper part of the wearer's nose in the mounted state. It is formed so as to cover the wearer's mouth and nose by elastic contact with the jaw. In this manner, in the wearing state, an airtight breathing chamber is formed by the diaphragm 33 and the wearer's face, and the pressure demand valve 44 provided in the valve unit 20 connected to the connecting portion is formed in the breathing chamber. And intake gas is supplied through the said through-hole.

  The valve unit 20 is provided with a pressure demand valve 44 and an exhalation valve 14 which are part of the configuration of the inspiratory gas supply device 13. The exhalation-valve 14 is a check valve, and when the pressure of the gas in the respiratory chamber exceeds a predetermined first set pressure P1, the gas in the respiratory chamber is discharged from the discharge port to the external space, and the gas in the respiratory chamber is discharged. When the pressure is equal to or lower than the first set pressure P1, the discharge port is closed. The first set pressure P1 is a pressure at which the wearer can perform an intake operation, and is set to a positive pressure that is slightly higher than the atmospheric pressure. In the present embodiment, the valve unit 20 is provided with two exhalation valves 14. The pressure demand valve 44 will be described later.

  The pressure vessel 12 is a member formed in a substantially bottomed cylindrical shape. In the pressure vessel 12, a shoulder portion whose inner diameter continuously decreases as the distance from the cylindrical portion along the axial direction of the cylindrical portion is formed at one end portion connected to the cylindrical portion of the right cylindrical shape. An opening is formed at the tip. Therefore, the inner diameter of the opening is smaller than the inner diameter of the cylindrical portion. The pressure vessel 12 is compressed and filled with, for example, air that is a breathing gas containing oxygen at a pressure higher than the atmospheric pressure as an intake gas.

  The intake gas supply device 13 includes a blocking valve 41, a pressure reducing valve 42, an intake pipe 43, and a pressure demand valve 44.

  The blocking valve 41 is an on-off valve that opens and closes the opening of the pressure vessel 12 and is detachably connected to an opening that defines the opening of the pressure vessel 12. The stop valve 41 is provided with a manual knob 41a, and the opening of the pressure vessel 12 is opened and closed by operating the manual knob 41a.

  The pressure reducing valve 42 is a pressure control valve, and reduces the pressure of the intake gas flowing out from the pressure vessel 12 through the blocking valve 41 to a predetermined second set pressure P2. The second set pressure P2 is greater than the first set pressure P1 (P2> P1). The pressure reducing valve 42 adjusts its opening based on the pressure reducing valve secondary pressure that is the pressure of the intake gas downstream of the pressure reducing valve 42 in the intake gas supply direction. Specifically, it opens when the secondary pressure of the pressure reducing valve becomes lower than the second set pressure P2, and closes when the secondary pressure becomes equal to or higher than the second set pressure P2. In the present embodiment, the pressure reducing valve 42 is directly connected to the blocking valve 41.

  The intake pipe 43 is a pipe that defines a flow path for guiding intake gas from the pressure reducing valve 42 to the face body 11, and has one end connected to the pressure reducing valve 42 and the other end connected to the valve unit 20. The intake pipe 43 guides the intake gas flowing out from the pressure reducing valve 42 to the pressure demand valve 44.

  The pressure demand valve 44 serves as a lung force valve for guiding the inhaled gas led to the other end of the inspiratory pipe 43 to the breathing chamber according to the inhaling operation of the wearer. The pressure demand valve 44 adjusts its opening based on the demand valve secondary pressure which is the pressure of the gas in the respiratory chamber. Specifically, it opens when the demand valve secondary pressure becomes less than the first set pressure P1, and closes when the demand valve secondary pressure becomes the first set pressure P1 or more.

  The backpack 15 is formed in a plate shape, a backplate 51 to which the pressure vessel 12 is detachably attached, a pair of backpack bands 52 attached to the backplate 51, a waist belt 53 attached to the backplate 51, The pressure vessel 12 attached to the plate 51 is configured to include a support base 54 that supports the pressure vessel 12 in the direction of gravity in use. Each back strap band 52 has a chest belt 52a provided at the center of the longitudinal direction so as to be fastened at the position of the chest of the wearer. The pressure vessel 12 is supported by the backpack 15 in such a posture that the blocking valve 41 is disposed below the pressure vessel 12.

  A person who intends to wear the backpack 15 inserts his / her arms between the backpack band 52 and the backboard 51 and hangs the backpack band 52 on his / her shoulders, so Further, by tightening the chest belt 52a at the position of the chest, the back plate 51 can be brought into close contact with the back and the backpack 15 can be worn.

  FIG. 3 is a block diagram showing an electrical configuration of the notification device 16. The notification device 16 includes a back device side notification device 61 provided on the back device 15 side and a face body side notification device 62 installed on the face body 11.

  FIG. 4 is a diagram showing a configuration of the device main body 70 of the backpack side notification device 61, and FIG. 4 (a) is a front view of the device main body 70 of the backpack side notification device 61, and FIG. Fig. 4C is a top view of the device main body 70 of the shoulder device side notification device 61, and Fig. 4C is a cross-sectional view taken along the section line CC in Fig. 4B, and Fig. 4D. These are sectional drawings seen from cut surface line DD in Drawing 4 (b).

  Hereinafter, with reference to FIG. 3 and FIG. The backpack device side notification device 61 includes a device main body 70 shown in FIG. 4 and a pressure sensor 71 connected to the device main body 70.

  The apparatus body 70 includes a battery 81, a voltage regulator 82, a temperature sensor 83, a first ADC (Analog to Digital Converter) 84a, a second ADC 84b, a remaining amount detection circuit 80, and a first LED ( Light Emitting Diode) 85 a, input / output port 86, serial communication port 87, control unit (Central Processing Unit; abbreviated as “CPU”) 88, resin-made case 89 that accommodates these, and pressure sensor 71 The first cable 90a and the second cable 90b are connected to each other.

  The case 89 is formed with a battery housing part 89c capable of housing the battery 81, and can be attached to and detached from the case body 89a housing a substrate on which the CPU 88 and the like are mounted, and the battery housing part 89c. And a lid 89b that opens and closes. In the present embodiment, the battery accommodating portion 89c is configured to accommodate four batteries 81.

  The battery 81 supplies electric power to a portion that operates when electric power is supplied in the shoulder device side notification device 61 and the face body side notification device 62. The face body side notification device 62 is supplied with electric power via the second cable 90b and a third cable 90c described later. The input voltage of the battery 81 is stepped down to, for example, 5 V (volts) by the voltage regulator 82 and supplied to the pressure sensor 71 and the CPU 88.

  The pressure sensor 71 detects the pressure of the intake gas compressed and filled in the pressure vessel 12, and outputs a pressure detection signal to the first ADC 84a. The first ADC 84 a converts the temperature detection signal, which is an analog signal input from the pressure sensor 71, into a digital signal and outputs it to the CPU 88.

  The temperature sensor 83 is realized by, for example, a thermistor, detects the temperature of the surrounding environment of the apparatus main body 70, and outputs a temperature detection signal to the second ADC 84b. The second ADC 84 b converts the temperature detection signal, which is an analog signal input from the temperature sensor 83, into a digital signal and outputs it to the CPU 88.

  The remaining amount detection circuit 80 detects the remaining amount of the battery 81 installed in the battery housing part 89 c and outputs the detection result to the CPU 88. The CPU 88 executes predetermined arithmetic processing based on various detection results input from the first and second ADCs 84 a and 84 b and the remaining amount detection circuit 80, and turns on / off the LED 85 a connected to the input / output port 86. And a control signal for operating various notification units 85b to 85g provided in the face body side notification device 62 via the serial communication port 87.

  The LED 85 a is installed in the case 89 so that the top of the LED lens is exposed to the outside at the top of the case 89. In the present embodiment, the LED 85a is configured to emit red light. The device main body 70 of the shoulder device side notification device 61 is mounted in, for example, the chest or shoulder of the wearer in such a posture that the lighting state of the LED 85a can be confirmed.

  FIG. 5 is a diagram illustrating a configuration of the face-piece-side notification device 62, FIG. 5A is a front view of the face-piece-side notification device 62, and FIG. 5B is a rear view of the face-piece-side notification device 62. FIG.5 (c) is sectional drawing seen from the cut surface line CC in FIG.5 (b).

  6 is a diagram illustrating a state in which the face body side notification device 62 is installed on the face body 11, FIG. 6A is a front view of the face body 11, and FIG. 6B is a left side surface of the face body 11. FIG. 6C is a top view of the face piece 11, and FIG. 6D is a bottom view of the face piece 11. In FIG. 6, the support body 32 and the fastening strap 22 are omitted, and the valve unit 20 is connected to the face body 11.

  Hereinafter, with reference to FIG. 3, FIG. 5, and FIG. The face-piece-side notification device 62 includes second to sixth LEDs 85b to 85f, a buzzer 85g, an input / output port 91, a serial communication port 92, a CPU 93, a resin case 94 that accommodates these, and a third Cable 90c.

  By connecting the second cable 90b provided in the device main body 70 of the backpack side notification device 61 and the third cable 90c provided in the facepiece side notification device 62, the backpack side notification device 61 and the face piece are connected. The side notification device 62 is communicably connected. As described above, in the present embodiment, the back device side notification device 61 and the face body side notification device 62 are configured to perform wired communication, but in other embodiments, may be configured to perform wireless communication.

  The case 94 is configured to include a semicircular arc-shaped fixing portion 94a fixed to the central portion of the lower portion 37 of the front plate 31, and a main body portion 94b that is connected to the fixing portion 94a and in which the accommodation space S1 is formed. The

  The main body 94b is substantially formed in a rectangular parallelepiped shape, and a buzzer 85g that generates a warning sound for notifying the occurrence of an abnormality is installed in the accommodation space S1 together with a substrate on which the CPU 93 and the like are mounted. In the present embodiment, the buzzer 85g is realized by a piezoelectric diaphragm.

  The CPU 93 turns on / off the second to sixth LEDs 85b to 85f connected to the input / output port 91 based on control signals input via the second and third cables 90b and 90c and the serial communication port 92. While controlling the turn-off, the drive of the buzzer 85g is controlled.

  The second to sixth LEDs 85b to 85f are aligned in a row so that the top portion of the LED lens is exposed to the outside at the facing portion 95 which is one surface portion in the thickness direction of the main body portion 94b. Installed inside.

  In the present embodiment, the second and third LEDs 85b and 85c are configured to emit green light, the fourth LED 85d is configured to emit yellow light, and the fifth LED 85e is configured to emit red light. The sixth LED 85f is configured to emit light, and the sixth LED 85f is configured to emit blue light.

  A hole for exposing the second to sixth LEDs 85b to 85f to the outside is formed in the facing portion 95 of the main body portion 94b, and a concave portion is formed as shown in FIGS. 5 (b) and 5 (c). 96 is formed. The recess 96 is provided so as to form a recess extending from the central portion of the facing portion 95 to the one side surface 97 of the main body portion 94 b and opening to the one side surface 97. The one side surface portion 97 is a side surface portion of the main body portion 94b opposite to the side surface portion connected to the fixing portion 94a. Furthermore, two sound emitting holes 98 are formed in the facing portion 95 so as to communicate the recess formed by the recess 96 with the accommodation space S1.

  The face body side notification device 62 configured as described above has a posture in which the facing portion 95 of the main body portion 94 b faces the outer surface 31 b of the front plate 31, and the fixing portion 94 a is positioned at the center of the lower portion 37 of the front plate 31. It is installed in the position adjacent to the valve unit 20 by fixing to. In the present embodiment, in the wearing state, the main body portion 94b is installed so as to face the right side of the wearer's face.

  Thus, since the facing portion 95 is installed so as to face the outer surface 31 b of the front plate 31, when the face body 11 is worn, the wearer can connect the second to second through the colorless and transparent front plate 31. The lighting states of the sixth LEDs 85b to 85f can be confirmed. Moreover, since the face body side alerting | reporting apparatus 62 is provided in the lower part 37 of the front plate 31, it can alert | report various information to a wearer, without disturbing a wearer's front view.

  Further, since the recess 96 is formed in the facing portion 95 of the main body 94b in the case 94 of the face piece side notification device 62, the face piece side notification device 62 is installed on the front plate 31 as shown in FIG. As shown in (c), a sound emission space S2 surrounded by the recess 96 and the outer surface 31b of the lower portion 37 of the front plate 31 is formed.

  Further, since the sound emitting hole 98 is formed so as to communicate the sound emitting space S2 and the housing space S1 of the main body portion 94b, the warning sound generated by driving the buzzer 85g is generated in the housing space S1. The sound is output to the outside through the sound hole 98, the sound emission space S2, and the opening 99 (see FIG. 6B) formed in the one side surface 97.

  In the present embodiment, when the wearer wears the face piece 11, the sound emitting space S2 opens in a direction toward the wearer's right ear, that is, one side surface 97 of the main body 94b is near the wearer's right ear. The face body side notification device 62 is installed on the outer surface 31b of the front plate 31 so as to face. Therefore, even in a noisy environment, the warning sound emitted from the buzzer 85g can be easily heard by the wearer. As a result, the wearer can be immediately aware of the occurrence of the abnormality, and thus the safety of the wearer can be ensured.

  Hereinafter, the operation of the notification device 16 will be described. When power is supplied to the notification device 16, the CPU 88 of the back device side notification device 61 (hereinafter referred to as “back device side CPU 88”) detects the detection result output from the remaining amount detection circuit 80 by the temperature sensor 83. Correction is performed based on the detected temperature, and the corrected battery remaining amount is compared with a predetermined value. Here, the predetermined value is set, for example, to a value that allows the notification device 16 to operate for about 2 hours.

  The back device side CPU 88 always compares the corrected battery remaining amount with a predetermined value, and if the corrected battery remaining amount falls below a predetermined value, the first LED 85a provided in the back device side notification device 61. Is flashed for a predetermined number of times (5 times in the present embodiment), and a remaining amount reduction signal indicating that the remaining battery level has fallen below a predetermined value is sent to the face-body-side notification device 62 via the serial communication port 87. Output.

  When the CPU 93 of the face body side notification device 62 (hereinafter referred to as “face body side CPU 93”) receives the remaining amount decrease signal, the sixth LED 85f blinks. Thereafter, the blinking of the sixth LED 85f is continued until the remaining battery level after correction exceeds a predetermined value due to replacement of the battery 81 or the like.

  Further, based on the pressure detection signal output from the pressure sensor 71, the backpack side CPU 88 constantly monitors the residual pressure, which is the pressure of the intake gas compressed and filled in the pressure vessel 12, and determines the residual pressure level. To do. In this embodiment, the residual pressure level is divided into five levels, the range where the residual pressure is 21.0 MPa or more and 29.4 MPa or less is level 4, and the range where the residual pressure is 14.5 MPa or more and less than 21.0 MPa is level. 3, the range where the residual pressure is 7.5 MPa or more and less than 14.5 MPa is Level 2, the range where the residual pressure is 0.7 MPa or more and less than 7.5 MPa is Level 1, and the residual pressure is less than 0.7 MPa as Level 0 Yes.

  Then, the backpack side CPU 88 outputs a residual pressure notification signal indicating the residual pressure level to the face body side notification device 62 via the serial communication port 87. The residual pressure notification signal is continuously output during the operation of the notification device 16.

  Further, when the back device side CPU 88 determines that the residual pressure level is level 1, it causes the first LED 85a to blink at a cycle of once per second. The blinking of the first LED 85a is continued as long as the residual pressure level is level 1.

  When the face body side CPU 93 receives the residual pressure notification signal, the face body side CPU 93 controls the driving of the second to sixth LEDs 85b to 85f and the buzzer 85g according to the residual pressure level indicated in the residual pressure notification signal.

  In this embodiment, if the residual pressure level is level 4, the face-piece CPU 93 turns on the second to fifth LEDs 85b to 85e, and a predetermined first time from the start of lighting (6 seconds in this embodiment). When the time elapses, the second to fifth LEDs 85b to 85e are turned off, and when the predetermined second time (9 seconds in this embodiment) elapses after the lights are turned off, the second to fifth LEDs 85b to 85e are turned on again. To control. That is, if the residual pressure level is level 4, the face body side CPU 93 controls the second to fifth LEDs 85b to 85e so that the lighting state for 6 seconds and the lighting state for 9 seconds are alternately repeated.

  Similarly, if the residual pressure level is level 3, the face-piece CPU 93 controls the third to fifth LEDs 85c to 85e so that the lighting state for 6 seconds and the lighting state for 9 seconds are alternately repeated. If the residual pressure level is level 2, the fourth to fifth LEDs 85d to 85e are controlled so that the lighting state for 6 seconds and the lighting state for 9 seconds are alternately repeated.

  Further, if the residual pressure level is level 1, the face side CPU 93 causes the fifth LED 85e to blink at a cycle of once per second, and if the residual pressure level is level 0, the second to fifth LEDs 85b. -85e is turned off.

  Further, the face side CPU 93 drives the buzzer 85g so that a warning sound sounds twice when the residual pressure level changes from level 4 to level 3, and warns when the residual pressure level changes from level 3 to level 2. The buzzer 85g is driven so that the sound sounds four times, and when the residual pressure level changes from level 2 to level 1, the buzzer 85g is driven so that the warning sound sounds six times.

  Further, the back device side CPU 88 constantly monitors the temperature of the surrounding environment based on the temperature detection signal output from the temperature sensor 83, and compares the temperature of the surrounding environment with a predetermined temperature. The predetermined temperature is set such that, for example, if the operation is continued under the temperature environment, the human body is adversely affected.

  The back device side CPU 88 always compares the temperature of the surrounding environment with a predetermined temperature, and when the temperature of the surrounding environment exceeds the predetermined temperature, the first LED 85a blinks once per second, A temperature warning signal indicating that the temperature of the surrounding environment has exceeded a predetermined temperature is output to the face body side notification device 62 via the serial communication port 87.

  After receiving the temperature warning signal, the face-piece side CPU 93 turns on or blinks the second to fifth LEDs 85b to 85e in the lighting pattern as described above according to the residual pressure level for the predetermined first time. The second to sixth LEDs 85b to 85f are driven so as to be dynamically lit for the predetermined second time.

  Here, the dynamic lighting is a lighting pattern in which the sixth LED 85f, the fifth LED 85e, the fourth LED 85d, the third LED 85c, and the second LED 85b are sequentially turned on one by one in this order. In the present embodiment, control is performed so that dynamic lighting is performed twice per second. Further, when the face body side CPU 93 receives the temperature warning signal, it drives the buzzer 85g so that the warning sound is continuously output.

  For example, if the temperature of the surrounding environment exceeds a predetermined temperature when the residual pressure level is level 2, the face-piece CPU 93 turns on the fourth to fifth LEDs 85d to 85e for six seconds in the first lighting state. And the second lighting state in which the second to sixth LEDs 85b to 85f are dynamically turned on only for 9 seconds are repeated, and the second to sixth LEDs 85b to 85f are output so that a warning sound is continuously output. And the drive of the buzzer 85g is controlled.

  Thus, the wearer wearing the respiratory apparatus 1 according to the present embodiment visually recognizes the lighting state of the second to sixth LEDs 85b to 85f in the face body side notification device 62 installed on the face body 11, thereby inhaling. It is possible to grasp the status of the residual gas pressure, the status of the remaining battery level, and the temperature status of the surrounding environment.

  Specifically, when blue light is emitted (when the sixth LED 85f is blinking), it is possible to grasp that the remaining battery level is decreasing, and the second to sixth When the LEDs 85b to 85f are dynamically lit, it is possible to grasp that the temperature of the surrounding environment has risen to a dangerous temperature for the human body. For the second to fifth LEDs 85b to 85e, the residual pressure level can be grasped by confirming the number of LEDs that are lit or blinking.

  Further, the change in the residual pressure level of the intake gas and the temperature of the surrounding environment can also be grasped by the ringing pattern of the buzzer 85g provided in the face piece side notification device 62. Furthermore, by visually confirming the lighting state of the first LED 85a in the shoulder device side notification device 61, it is possible to grasp the decrease in the remaining pressure of the intake gas, the decrease in the remaining battery level, and the temperature of the surrounding environment. it can.

  As described above, according to the present embodiment, when the temperature of the surrounding environment exceeds the predetermined temperature, the fact that the temperature of the surrounding environment has exceeded the predetermined temperature is the first provided in the shoulder device side notification device 61. The LED 85a and the second to sixth LEDs 85b to 85f and the buzzer 85g provided in the face body side notification device 62 are configured to be notified to the wearer. When working in a high temperature environment such as the above, the wearer can be made aware that the temperature of the work environment has risen to a dangerous temperature for the human body. Thereby, the accident resulting from the temperature rise of a working environment can be prevented beforehand.

  In another embodiment, the back device side notification device 61 may further include a nonvolatile memory that stores the detection result by the temperature sensor 83 and the detection result by the pressure sensor 71 in association with each other. Thereby, it is possible to look back on the activity status at the work site after the work, and to use it for the formulation of the subsequent activity policy.

  In another embodiment, the backpack device side notification device 61 may further include wireless communication means for wirelessly transmitting the detection result of the temperature sensor 83 to the outside. Thereby, in the headquarters which directs work, by receiving the temperature detection result wirelessly transmitted from the respirator 1, it is possible to grasp the situation of the work site.

  In another embodiment, a display device that digitally displays the temperature of the surrounding environment detected by the temperature sensor 83 may be further provided on the backpack side notification device 61 or the face body side notification device 62. Thereby, the wearer can grasp the detailed temperature of the surrounding environment.

  FIG. 7 is a diagram showing a configuration of a face body side notification device 62A according to another embodiment, FIG. 7 (a) is a side view of the face body side notification device 62A, and FIG. 7 (b) is a diagram of FIG. It is sectional drawing seen from the cut surface line BB in (a). 62A of face body side notification apparatuses which concern on this embodiment are similar to the face body side notification apparatus 62 which concerns on the above-mentioned embodiment, attach the same reference numerals about the same structure, and abbreviate | omit the overlapping description.

  The face body side notification device 62 </ b> A according to the present embodiment includes the vibration motor 100 and is configured to transmit the vibration of the vibration motor 100 to the face body 11 via the case 94. And in this embodiment, the face-piece side CPU93 is comprised so that the vibration motor 100 may be vibrated, if a temperature warning signal is received.

  As described above, according to the present embodiment, when the temperature of the surrounding environment exceeds the predetermined temperature, the fact that the temperature of the surrounding environment has exceeded the predetermined temperature is determined by the vibration motor 100 provided in the face body side notification device 62. Since it is configured to be notified to the wearer by vibration, when the work is performed in a high temperature environment such as a fire place with the respirator 1 installed, the temperature of the work environment is instructed to the human body. You can notice that it has risen to a dangerous temperature. Thereby, the accident resulting from the temperature rise of a working environment can be prevented beforehand.

DESCRIPTION OF SYMBOLS 1 Respirator 11 Face body 13 Intake gas supply device 16 Notification device 61 Backpack side notification device 62 Face body side notification device 71 Pressure sensor 80 Remaining amount detection circuit 81 Battery 83 Temperature sensor 85g Buzzer 94 Case 96 Recess 98 Sound emission hole S1 Storage space S2 Sound emission space

Claims (2)

A face body covering the face of the wearer, the face body including a translucent plate-like member disposed in front of the face of the wearer;
An intake gas supply device for supplying intake gas compressed and filled in the pressure vessel to the face body;
A warning sound output device that is fixed to an outer surface that is a surface opposite to the surface facing the wearer's face in the plate-like member, and outputs a warning sound when an abnormality occurs,
A housing space is formed inside and is fixed to the outer surface of the plate-like member;
A warning sound output device installed in a housing space of the housing and including a warning sound generating unit that generates a warning sound;
The housing includes a facing portion facing the outer surface of the plate-like member, and the facing portion opens in one of the surface directions of the outer surface in cooperation with the outer surface of the plate-like member. A respirator characterized in that a recess forming a sound emitting space is formed, and a sound emitting hole communicating the housing space and the sound emitting space is formed.   The respiratory apparatus according to claim 1, wherein the casing is fixed to an outer surface of the plate-like member so that the sound emitting space opens in a direction toward the ear of the wearer.

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