JP2019092736A - Fire extinguisher - Google Patents

Abstract

To provide a fire extinguisher which can be installed easily at a cheap price, and can quickly extinguish flame.SOLUTION: A fire extinguisher includes: a casing arranged at a lateral side of a heating cooker; a flame-retardant sheet for covering the whole heating cooker, stored in the casing, and expandable to an upper portion outside the casing; expansion means for expanding the flame-retardant sheet to the upper portion outside the casing; and switching means for switching the flame-retardant sheet expanded to the upper portion outside the casing to a state of covering the heating cooker.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a fire extinguisher for extinguishing a fire generated from a pan or the like handled on a heating cooker such as a gas stove or an IH cooker.

  According to Patent Document 1, when the air bag is accommodated in a folded state at the upper peripheral portion of the range stand on which the range is placed, and the fire extinguisher detects a flame or smoke on the wall which is the upper range stand, After the air bag rises into a rectangular tube, the extinguishant is released from the fire extinguisher and the fire is extinguished.

JP, 2009-172307, A

  In Patent Document 1, although the fire extinguishing agent is released after the air bag has risen, the fire extinguisher is extinguished, but the air bag mainly functions as a fire wall to prevent the spread of the flame, In order to completely extinguish the fire, a fire extinguisher attached to the top of the fire wall is required. Therefore, it is necessary to install a fire extinguisher on the wall etc. which becomes a range stand upper part, a large-scale construction is required to apply patent document 1 to the location where the existing range stand was installed, Is required.

  An object of the present invention is to provide a fire extinguisher that can be easily installed at low cost even with an existing heating cooker, and can quickly extinguish a flame.

  The fire extinguisher according to the first aspect of the present invention covers a whole of the cooking device, which is disposed to the side of the cooking device, and is housed in the casing and deployable toward the outside of the casing. A flame-retardant sheet, an expansion means for expanding the flame-retardant sheet upward to the outside of the casing, and the flame-retardant sheet expanded to the outside upward of the casing from covering the heating cooker And switching means for switching to the state.

  In this fire extinguisher, when there is a fire on the heating cooker, the flame retardant sheet is expanded above the outside of the casing by the expanding means, and then the switching means shifts to a state where the flame retardant sheet covers the heating cooker By doing this, it is possible to suppress the supply of oxygen on the heating cooker, and to extinguish the fire on the heating cooker quickly. And since a fire extinguishing is realizable if the casing which accommodates the flame-retardant sheet | seat is arrange | positioned to the side of a heating cooker, it can apply also with the existing heating cooker. Furthermore, large-scale installation work is unnecessary, and can be provided to general households at low cost.

  The fire extinguisher according to a second aspect of the present invention is the fire extinguisher according to the first aspect, wherein the casing includes an inclination unit that inclines toward the heating cooker when the flame-retardant sheet is expanded toward the outside of the casing.

  In this fire extinguisher, since the flame retardant sheet can be expanded toward the upper side of the casing while being inclined toward the heating cooker by the tilting means provided on the casing, the switching means reliably shifts to the state of covering the heating cooker. be able to.

  In the fire extinguisher according to a third aspect of the present invention, in the first or the second aspect, the flame-retardant sheet is provided with an expandable airtight chamber along its deployment direction, and the expanding means comprises an airtight chamber and the airtight chamber. It comprises: a fluid press-in means for press-fitting a fluid; and the switching means comprises a stop mechanism for stopping the fluid press-in to the airtight chamber after the flame retardant sheet is deployed.

  In this fire extinguisher, by pressing the fluid into the airtight chamber of the flame retardant sheet, the flame retardant sheet can stand by itself so that the flame retardant sheet can be expanded toward the upper side of the casing, and the pressure injection of the fluid is stopped after deployment. The self-standing state of the flame retardant sheet is released by the stopping mechanism, and the flame retardant sheet shifts to the state of covering the top of the heating cooker.

  In the fire extinguisher according to a fourth aspect of the present invention, in the third aspect, the expansion means provides the airtight chamber so as to face the heating cooker of the flame retardant sheet, and the airtight chamber expands the flame retardant sheet. And at least one longitudinal portion formed to extend upward from the lower end of the flame retardant sheet, and a lateral portion formed to extend laterally from the longitudinal portion at the upper end of the flame retardant sheet Consists of

  In this fire extinguisher, the flame-retardant sheet is expanded toward the upper outside of the casing, and thereafter, the airtight chamber provided to face the heating cooker of the flame-retardant sheet is constituted by the vertical portion and the horizontal portion The flame retardant sheet expands in the longitudinal direction and lateral direction and holds the shape that reliably covers the range, and the weight of the horizontal part provided at the upper end ensures that the heating cooker is covered even if there is updraft due to fire Can be switched to

  The fire extinguisher according to a fifth aspect of the present invention is the fire extinguisher according to the fourth aspect, wherein the longitudinal portion includes two longitudinal portions.

  In this fire extinguisher, the flame-retardant sheet is expanded toward the upper outside of the casing, and thereafter, the airtight chamber provided to face the heating cooker of the flame-retardant sheet is configured to include two longitudinal portions. Therefore, the flame retardant sheet expands in the longitudinal direction and the lateral direction to keep the shape for reliably covering the range, and the weight of the horizontal part provided at the upper end covers the top of the heating cooker even if there is an updraft due to fire. It is possible to switch to the state reliably.

  The fire extinguisher according to a sixth aspect of the present invention is the fire extinguisher according to the fourth or fifth aspect, wherein the airtight chamber includes a bottom portion formed to extend in the lateral direction from the longitudinal portion at the lower end of the flame retardant sheet.

  In this fire extinguisher, the bottom part of the airtight chamber ensures lateral deployment of the lower part of the flame retardant sheet, and the bottom part is expanded by fluid pressure to support the free standing state of the flame retardant sheet. Work, and the flame retardant sheet can be more reliably expanded toward the upper outside of the casing.

  The fire extinguisher according to a seventh aspect of the present invention is the fire extinguisher according to any one of the third to sixth aspects, wherein fire detection means is disposed around the heating cooker, and a fire is detected by the fire detection means. Is transmitted to the fluid press-in means to start the fluid press-in of the flame retardant sheet in the casing into the airtight chamber.

  In this fire extinguisher, when the fire detection means detects a fire around the heating cooker, the flame retardant sheet can be deployed toward the upper outside of the casing.

  The fire extinguisher according to an eighth aspect of the present invention is the fire extinguisher according to any of the third to seventh aspects, wherein incombustible gas is used as the fluid and the flame retardant sheet covers the heating cooker from the airtight chamber. A discharge unit was provided in communication with the inside of the airtight chamber so as to be able to discharge noncombustible gas in the room toward the heating cooker.

  In this fire extinguisher, the fire extinguishing can be promoted by discharging the non-combustible gas, which is pressed into the air-tight chamber, with the flame retardant sheet covering the heating cooker toward the heating cooker.

  The fire extinguisher of the ninth invention is any of the first to eighth inventions, wherein the flame retardant sheet blocks oxygen and has flexibility.

  In this fire extinguisher, the fire-retardant sheet can accelerate the fire extinguishing by blocking oxygen.

  The fire extinguisher according to a tenth invention is characterized in that, in the ninth invention, the flame retardant sheet is a base fabric coated with a flame retardant resin.

  In this fire extinguisher, when the flame retardant sheet covers the heating cooker, the space between the flame retardant sheet and the heating cooker is formed by the outer end of the flame retardant sheet bending toward the heating cooker. It can be smaller and promote fire fighting.

  According to the present invention, when there is a fire on the heating cooker, the flame retardant sheet is expanded above the outside of the casing by the expanding means, and then the flame retardant sheet is covered by the switching means on the heating cooker By shifting, it is possible to suppress the supply of oxygen on the cooking device and to extinguish the fire on the cooking device quickly. And since a fire extinguishing is realizable if the casing which accommodates the flame-retardant sheet | seat is arrange | positioned to the side of a heating cooker, it can apply also with the existing heating cooker. Furthermore, large-scale installation work is unnecessary, and can be provided to general households at low cost.

Fig.1 (a) is a top view which shows the state by which the fire extinguisher which concerns on this embodiment was arrange | positioned at the side of a heating cooker, FIG.1 (b) is a side view of Fig.1 (a). . It is a top view of the flame-retardant sheet | seat of the fire extinguisher of FIG. It is a figure which shows the structure of the control part of the fire extinguisher of FIG. It is a figure which shows the structure of the casing of the fire extinguisher of FIG. It is a figure which shows the operation | movement when extinguishing the fire on a heating cooker by the fire extinguisher of FIG. It is a figure which shows the operation | movement when extinguishing the fire on a heating cooker by the fire extinguisher of FIG. It is a figure which shows the structure of the airtight chamber of the flame-retardant sheet | seat of the fire extinguisher of the modification of this invention.

  Hereinafter, embodiments of the present invention will be described. Fig.1 (a) is a top view which shows the state by which the fire extinguisher which concerns on this embodiment was arrange | positioned at the side of a heating cooker, FIG.1 (b) is a side view of Fig.1 (a). .

  As shown in FIG. 1, the heating cooker 10 is a gas stove, and the first heating unit 11 and the second heating unit 12 are disposed on the upper surface of the heating cooker 10. The first heating unit 11 and the second heating unit 12 are arranged side by side. In the upper surface of the heating cooker 10, the first heating unit 11 and the second heating unit 12 are portions where cooking utensils such as a frying pan handled on the heating cooker 10 are placed.

  The fire extinguisher 1 of the present embodiment is disposed on the back side of the heating cooker 10. The fire extinguisher 1 has a casing 2 disposed to the side of the heating cooker 10. The casing 2 has a rectangular parallelepiped shape, and has a width substantially the same as the width of the heating cooker 10. A cover plate 2a is disposed on the upper surface of the casing 2, and the casing 2 is configured to be openable and closable by the cover plate 2a. In the casing 2, a flame retardant sheet 3 is accommodated. Although the flame retardant sheet 3 is folded and stored in the casing 2, it is configured to be able to expand outward of the casing 2 by pressing the gas.

  The flame retardant sheet 3 is a member having flame retardancy, and blocks oxygen and has flexibility. The flame retardant sheet 3 of the present embodiment is a base fabric used for an automotive air bag, and is a base fabric coated with a flame retardant resin (a base fabric in which one surface of nylon fabric is coated with silicon). Therefore, the silicon is coated on the surface on the heating cooker side of the flame retardant sheet 3 (the lower surface when the flame retardant sheet moves so as to cover the heating cooker).

  As shown in FIG. 2, the flame retardant sheet 3 has a substantially rectangular main body 3a and an airtight chamber forming part 3b attached to the surface of the main body 3a. The main body portion 3 a has an area larger than the area of the upper surface of the heating cooker 10, and can cover the entire upper surface of the heating cooker 10. The hermetic chamber forming portion 3b has a substantially T-shaped shape, and is attached to the main body portion 3a at the outer peripheral portion of the hermetic chamber forming portion 3b. A gas press-in portion 3c is formed at the lower end portion of the airtight chamber forming portion 3b.

  Therefore, in a state where gas is not pressed into the inside of the flame retardant sheet 3, the main body 3a and the airtight chamber forming part 3b contact each other, and an airtight chamber is not formed between the main body 3a and the airtight chamber forming part 3b. . On the other hand, in the state where gas is pressed into the inside of the flame retardant sheet 3, the main body 3a and the airtight chamber forming part 3b do not contact, and the airtight chamber 4 is formed between the main body 3a and the airtight chamber forming part 3b. Is formed. As described above, the expandable airtight chamber is formed on the flame retardant sheet 3 so as to face the heating cooker 10 along the expansion direction of the flame retardant sheet 3.

  In the present embodiment, as shown in FIGS. 6 (b) and 6 (c), when the flame retardant sheet 3 is expanded, a substantially T-shaped airtight space is formed between the main body 3a and the airtight chamber forming area 3b. A closed room 4 is formed. The airtight chamber 4 includes a longitudinal portion 4a formed to extend upward from the lower end of the flame retardant sheet, and a lateral portion 4b formed to extend laterally from the longitudinal portion 4a at the upper end of the flame retardant sheet 3 Have. The vertical portion 4a and the horizontal portion 4b of the airtight chamber 4 communicate with each other, and a gas press-in portion 3c is formed at the lower end portion (lower end portion of the vertical portion 4a) of the airtight chamber 4. Thus, the expandable airtight chamber 4 is provided in the flame-retardant sheet 3 so as to face the heating cooker 10 along the direction of its expansion.

  In the flame retardant sheet 3, the vertical portion 4 a of the airtight chamber 4 is disposed between the first heating unit 11 and the second heating unit 12 when moving so as to cover the heating cooker 10. In the vertical portion 4a, a plurality of holes 5 (discharge parts) for discharging the gas in the hermetic chamber 4 to the outside are formed. The plurality of holes 5 are formed in the surface (air-tight chamber forming portion 3b) of the flame-retardant sheet 3 on the heating-cooking device 10 side, and from the air-tight chamber 4 to the air-tight chamber 4 The noncombustible gas inside is communicated with the inside of the airtight chamber so as to be discharged toward the heating cooker 10. When the gas is pressed into the inside of the flame retardant sheet 3, the gas is discharged to the outside from the plurality of holes 5, but since the area of the plurality of holes 5 is small, the gas to be discharged to the outside from the plurality of holes 5 The amount of the flame retardant sheet 3 is smaller than that of the gas injected into the flame retardant sheet 3 and the flame retardant sheet 3 can be developed.

  As shown in FIG. 3, the gas cylinder 6 is connected to the gas press-in portion 3 c via the opening / closing portion 6 a. The opening / closing unit 6 a is connected to the control unit 7. A fire detection sensor 8 for detecting a flame on the heating cooker 10 is connected to the control unit 7. As the fire detection sensor 8, a temperature sensor, a smoke sensor or the like disposed around the heating cooker 10 is used. Therefore, when the fire detection sensor 8 detects a flame on the heating cooker 10, the control unit 7 opens the opening / closing unit 6a, and the fire detection sensor 8 does not detect a flame on the heating cooker 10 , Closing the opening and closing part 6a. Therefore, when the opening and closing part 6a is closed, the flame retardant sheet 3 is accommodated in the casing 2, but when the opening and closing part 6a is opened, the flame retardant sheet 3 is directed to the upper outside of the casing 2 Is deployed. The control unit 7 closes the opening / closing unit 6 a when switching the flame retardant sheet 3 expanded toward the outside of the casing 2 to the state of covering the heating cooker 10 after opening the opening / closing unit 6 a.

  The flame retardant sheet 3 is expanded so as to be inclined toward the heating cooker 10 toward the upper outside of the casing 2 as shown in FIGS. 5 (b) and 5 (c). As described above, the upper surface of the casing 2 is configured to be openable and closable by the cover plate 2a, but as shown in FIG. 4, the cover plate 2a is rotated using the end 2aa opposite to the heating cooker 10 as a fulcrum Move. At this time, the end 2ab of the cover plate 2a on the heating cooker 10 side is configured not to rotate until it comes above the end 2aa opposite to the heating cooker 10. Therefore, the cover plate 2a which opened the upper surface of the casing 2 will be in the state inclined to the heating cooker 10 side. Therefore, the flame retardant sheet 3 developed toward the upper side of the exterior of the casing 2 develops so as to incline toward the heating cooker 10 along the lid plate 2a inclined toward the heating cooker 10 side. As described above, the cover plate 2 a of the casing 2 constitutes an inclination unit that inclines to the heating cooker 10 side when the flame retardant sheet 3 is expanded upward to the outside of the casing 2. In addition, as the inclination means, it is possible to use a tether belt or the like which regulates the inclination of the casing and the deployment of the air bag on the opposite side of the range.

  Carbon dioxide (CO 2) is sealed in the gas cylinder 6 of the present embodiment. Carbon dioxide is a non-combustible gas, and by discharging carbon dioxide from the plurality of holes 5 of the flame-retardant sheet 3 toward the heating cooker 10, fire extinguishing can be promoted. The gas cylinder 6 may use, for example, one that is distributed for use in a bicycle puncture.

  The operation when the fire on the heating cooker 10 is extinguished by the fire extinguisher 1 of the present embodiment will be described based on FIGS. 5 and 6.

  FIG. 5A and FIG. 6A show a state in which the cooking appliance 16 is placed on the first heating unit 11 and the second heating unit 12 of the heating cooker 10, respectively. At this time, the fire retardant sheet 3 is accommodated in the casing 2 disposed on the back side of the heating cooker 10 since no disaster occurs on the cooking appliance 16.

  Thereafter, as shown in FIGS. 5 (b) and 6 (b), when a flame is generated on the first heating unit 11 of the heating cooker 10, a fire on the heating cooker 10 is detected by the fire detection sensor 8. Pressure injection of the gas into the inside of the flame retardant sheet 3 is started. At this time, the gas is pressed into the vertical portion 4 a of the airtight chamber 4 of the flame retardant sheet 3, whereby the expansion of the flame retardant sheet 3 is started toward the upper outside of the casing 2.

  After the gas is pressed into the vertical portion 4a of the airtight chamber 4 of the flame retardant sheet 3, the gas is pressed into the horizontal portion 4b in communication with the vertical portion 4a. Then, as shown in FIGS. 5 (c) and 6 (c), the airtight chamber 4 of the flame retardant sheet 3 becomes substantially T-shaped, and ends the upward development of the casing 2 outside. At this time, the flame retardant sheet 3 is inclined to the heating cooker 10 side.

  When the expansion of the flame retardant sheet 3 is completed, the pressing of the gas is stopped, and as shown in FIGS. 5 (d) and 6 (d), the flame retardant sheet 3 is sealed in the airtight chamber 4 by the weight of the horizontal portion 4b. It bends from the root part of the vertical part 4a, and moves to the heating cooker 10 side.

  Thereafter, the flame retardant sheet 3 moves toward the upper surface of the heating cooker 10, and as shown in FIGS. 5 (e) and 6 (e), the flame retardant sheet 3 covers the upper surface of the heating cooker 10. Therefore, the supply of oxygen to the upper surface of the cooker 10 is suppressed, and the fire on the cooker 10 is extinguished. At this time, noncombustible gas is discharged from the plurality of holes 5 of the flame retardant sheet 3 in a state of covering the upper surface of the heating cooker 10.

  In the present embodiment, the gas cylinder 6 and the opening / closing part 6a constitute a fluid press-in means for pressing the fluid into the airtight chamber 4 of the flame retardant sheet 3, and the airtight chamber 4 of the flame retardant sheet 3 and the fluid press-in means are flame retardants. The expansion means is configured to expand the seat 3 outward of the casing 2. The opening / closing portion 6a is a stop mechanism that stops the fluid press-in to the airtight chamber 4 after the flame-retardant sheet 3 is deployed, and the flame-retardant sheet 3 deployed toward the upper outside of the casing 2 The switching means is configured to switch to the covering state. The gas capacity of the gas cylinder 6 is selected according to the size of the airtight chamber 4 and the supply of gas is naturally stopped by exhausting the gas after the fluid is pressed into the airtight chamber 4 and the flame retardant sheet 3 is heated. It is also possible to make it incline to the cooker side, and the switching means of such a configuration can also be applied.

  In the fire extinguisher 1 of the present embodiment, when there is a fire on the heating cooker 10, the flame retardant sheet 3 is spread over the outside of the casing 2 by the spreading means, and then the flame retardant sheet 3 is heated by the switching means By shifting to the state of covering the top of the cooker 10, it is possible to suppress the supply of oxygen to the cooker 10 and to extinguish the fire on the cooker 10 quickly. And since fire extinguishing is realizable if the casing 2 which accommodates the flame-retardant sheet | seat 3 is arrange | positioned to the side of the heating cooker 10, even the existing heating cooker is applicable. Furthermore, large-scale installation work is unnecessary, and can be provided to general households at low cost.

  In the fire extinguisher 1 of this embodiment, since the flame retardant sheet 3 can be expanded toward the upper side of the heating cooker 10 by the inclination means provided on the casing 2 while the flame retardant sheet 3 is inclined to the heating cooker 10 side It is possible to reliably shift to the state of covering 10.

  In the fire extinguisher 1 of the present embodiment, the flame-retardant sheet 3 can be expanded toward the upper outside of the casing 2 by the flame-retardant sheet 3 standing by pressing the fluid into the airtight chamber 4 of the flame-retardant sheet 3. At the same time, the self-supporting state of the flame retardant sheet 3 is released by the stop mechanism that stops the press-in of the fluid after deployment, and the flame retardant sheet 3 shifts to the state of covering the heating cooker 10.

  In the fire extinguisher 1 of the present embodiment, the airtight chamber 4 provided so as to expand the flame retardant sheet 3 toward the upper outside of the casing 2 and thereafter to face the heating cooker 10 of the flame retardant sheet 3 By comprising 4a and the horizontal part 4b, the flame retardant sheet 3 expands in the longitudinal direction and the lateral direction and holds the shape for reliably covering the range, and the weight of the horizontal part 4b provided at the upper end causes the fire to rise Even if there is an air flow, it can be reliably switched to the state of covering the heating cooker 10.

  In the fire extinguisher 1 of the present embodiment, the fire extinguishing is performed by discharging the non-combustible gas which is press-fitted into the airtight chamber 4 toward the heating cooker 10 in a state where the flame retardant sheet 3 covers the heating cooker 10. It can be promoted.

  In the fire extinguisher 1 of the present embodiment, when the fire detection means 8 detects a fire around the heating cooker 10, the flame retardant sheet 3 can be expanded toward the upper outside of the casing 2.

  In the fire extinguisher 1 of the present embodiment, the fire retardant can be promoted by the flame retardant sheet 3 blocking oxygen.

  In the fire extinguisher 1 of the present embodiment, when the flame retardant sheet 3 covers the heating cooker 10, the outer end of the flame retardant sheet 3 is bent toward the heating cooker 10, The space between the cooking device 10 and the cooking device 10 becomes smaller, and the fire extinguishing can be promoted.

  As mentioned above, although the preferred embodiment of the present invention was described, the present invention is not limited to the above-mentioned embodiment, and various modifications can be made within the scope of the claims. Modifications described later may be implemented in combination as appropriate.

  In the above-described embodiment, when gas is pressed into the inside of the flame retardant sheet 3, the substantially T-shaped airtight chamber 4 is formed between the main body 3a and the airtight chamber forming portion 3b. The shape of the closed room may vary. For example, as shown in FIG. 7A, the airtight chamber 104 extends in the lateral direction from the longitudinal portion 104a at the longitudinal portion 104a formed to extend upward from the lower end of the flame retardant sheet, and at the upper end of the flame retardant sheet. It may have a transverse portion 104b formed to extend, and a bottom portion 104c formed to extend laterally from the longitudinal portion 104a at the lower end of the flame retardant sheet. Further, as shown in FIG. 7B, the airtight chamber 204 is formed with two vertical portions 204aa and 204ab formed to be inclined inward as going from the lower end sides of the flame retardant sheet upward, and the flame retardant sheet And a bottom portion 204c formed to extend laterally from the longitudinal portions 204a and 204b at the lower end of the flame retardant sheet. It may be

  In the above-described embodiment, carbon dioxide which is a non-combustible gas is pressed into the inside of the flame retardant sheet, but the gas which is pressed into the inside of the flame retardant sheet may be another gas such as nitrogen.

  In the above-described embodiment, the flame retardant sheet has a plurality of holes configured to discharge the gas in the hermetic chamber toward the heating cooker, but may have one hole. In the flame-retardant sheet, there may be no hole configured to allow the gas in the airtight chamber to be discharged toward the heating cooker. The discharge part of the present invention may be a vent hole for discharging the gas to the outside when the pressure in the hermetic chamber exceeds a predetermined pressure. The discharge part of the present invention may be a low airtight part formed in the flame retardant sheet.

  In the above-described embodiment, when the fire is detected by the fire detection sensor, the gas is pressed into the airtight chamber of the flame retardant sheet in the casing, but the gas is manually injected into the airtight chamber of the flame retardant sheet in the casing May be pressed in.

  In the above-described embodiment, the flame retardant sheet is a base fabric coated with a flame retardant resin, but the flame retardant sheet may be, for example, a plastic that blocks oxygen and has flexibility. Therefore, the material of the flame retardant sheet may be changed.

  In the above-described embodiment, the flame retardant sheet is accommodated in a bellows shape inside the casing, but the method of accommodating the flame retardant sheet inside the casing may be changed. For example, the flame retardant sheet may be wound on the heating cooker side inside the casing. In this flame retardant sheet, when it spreads out outside the casing, it spreads to the heating cooker side. In the above-described embodiment, when the lid plate in which the upper surface of the casing is opened is inclined toward the heating cooker side, the flame retardant sheet developed toward the upper outside of the casing is inclined toward the heating cooker side By attaching an airtight chamber forming part thicker than the main body of the flame retardant sheet to the surface of the main body, the flame retardant sheet developed toward the upper outside of the casing is inclined toward the heating cooker side. May be configured.

DESCRIPTION OF SYMBOLS 1 Fire extinguisher 2 Casing 3 Flame-retardant sheet 4 Airtight room 4a Vertical part 4b Horizontal part 5 hole 6 Gas cylinder 6a Opening and closing part 7 Control part 8 Fire detection sensor 10 Heating cooker

Claims (10)

A casing disposed to the side of the heating cooker;
A flame retardant sheet for covering the entire heating cooker, which is accommodated in the casing and configured to be deployable toward the outside of the casing,
Expanding means for expanding the flame retardant sheet upward and outward of the casing;
A fire extinguisher comprising: a switching means for switching the flame retardant sheet expanded upward from the outside of the casing to a state of covering the heating cooker.   The fire extinguisher according to claim 1, wherein the casing includes an inclination unit that inclines toward the heating cooker when the flame retardant sheet expands upward of the casing. An expandable airtight chamber is provided in the flame retardant sheet along the expansion direction,
The deployment means comprises an airtight chamber and fluid press-in means for pressing fluid into the hermetic chamber, and the switching means is a stop mechanism for stopping fluid injection into the hermetic chamber after deployment of the flame retardant sheet. The fire extinguisher according to claim 1 or 2, characterized in that:   The expansion means provides the airtight chamber so as to face the heating cooker of the flame retardant sheet, and the airtight chamber extends upward from the lower end of the flame retardant sheet in a state in which the flame retardant sheet is expanded. 4. The apparatus according to claim 3, comprising at least one longitudinal portion formed in this manner and a lateral portion formed to extend laterally from the longitudinal portion at the upper end of the flame retardant sheet. Fire extinguisher.   The fire extinguisher according to claim 4, wherein the longitudinal portion comprises a configuration including two longitudinal portions.   The fire extinguisher according to claim 4 or 5, wherein the airtight chamber comprises a bottom portion formed to extend in the lateral direction from the longitudinal portion at the lower end of the flame retardant sheet. Place fire detection means around the cooker,
When a fire is detected by the fire detection means, the detection signal is transmitted to the fluid press-in means to start the fluid press-in of the flame-retardant sheet in the casing into the airtight chamber. The fire extinguisher according to any one of claims 3-6. Incombustible gas is used for the fluid,
A discharge unit is provided in communication with the inside of the airtight chamber so that the noncombustible gas in the airtight chamber can be discharged toward the heating cooker from the airtight chamber with the flame retardant sheet covering the heating cooker. The fire extinguisher according to any one of claims 3-7.   The fire extinguisher according to any one of claims 1 to 8, wherein the flame retardant sheet blocks oxygen and has flexibility.   The fire extinguisher according to claim 9, wherein the flame retardant sheet is a base fabric coated with a flame retardant resin.

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