JP2010276268A - Combustion equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide combustion equipment having a simple configuration, facilitating assembly, capable of achieving an automatic extinguishing mechanism securely sensing lifting of a fuel tank and performing automatic extinguishment, and extremely facilitating maintenance. <P>SOLUTION: A tank storage sensing unit body 9 rotatably including a movable part 10 is attached below a control circuit substrate 7 on the front face of a tank guide plate 6, and one inner end of the movable part 10 is provided within a tank storage part 5 on the back side of the tank guide plate 6 via an opening 8 in the projecting state. The combustion equipment includes the automatic extinguishing mechanism 13 forcedly extinguished by sensing a magnet 12 of the movable part 10 by a non-contact type sensing part 11 of the tank storage sensing unit body 9, when a fuel tank 3 is taken out and the movable part 10 is automatically returned and rotated to the projecting direction. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a combustion device having an automatic fire extinguishing mechanism that automatically forcibly extinguishes when a fuel tank is taken out.

  In oil combustion equipment such as an oil stove and an oil fan heater, a fuel tank (cartridge tank) provided so as to be freely taken out from the equipment is used as means for supplying fuel (kerosene) to a combustion device of the equipment.

  For example, in the case of an oil stove or an oil fan heater, a tank storage part for storing a fuel tank is provided on the side of the equipment body so that the fuel tank can be pulled up and taken out freely from the upper outlet, and the fuel tank supplied with kerosene is inverted in this storage part. The kerosene is housed and supplied from the oil supply cap with a valve at the lower end to the tray, and burns while kerosene is supplied from here to the combustion device.

  When kerosene is reduced and kerosene is refilled into the fuel tank, the fuel tank is removed, the fuel cap is removed, the tank is filled with fuel, and the tank is stored upside down again. When raising the fuel tank, the fuel cap at the lower end will not come off, and kerosene will not leak from the fuel cap, but for the sake of completeness, if the fuel tank is raised, the combustion device is still burning without extinguishing the fire. Oil burning equipment equipped with an automatic fire extinguishing mechanism that automatically extinguishes even if there is proposed.

  Furthermore, recently, for safety enhancement, even if the combustion apparatus is operating (combustion) as described above, it is technically necessary to provide the automatic fire extinguishing mechanism that forcibly automatically extinguishes when the fuel tank is lifted. JIS standard).

  However, for example, when the fuel tank is simply housed as in Cited Document 1 (Japanese Patent Laid-Open No. 2000-9309), the switch lever presses the microswitch, and when the fuel tank is taken out, the switch lever is released and the fuel tank is released. However, this makes it difficult to manage the operating stroke of the switch lever to detect the presence or absence of this fuel tank. Therefore, it is not possible to realize a detection device that requires high accuracy for production and assembly and that can be easily assembled with a simple configuration.

JP 2000-9309 A

  The present invention provides a non-contact type detection unit that detects a removal of a fuel tank by providing a magnet in a movable part (rotating part) that changes rotationally depending on the presence or absence of a fuel tank, and detecting the proximity of the magnet. (Fixed part) constitutes a detection unit, and by providing this detection unit in front of the tank guide plate on which the control circuit board of the combustion device is installed, complicated stroke management becomes unnecessary and manufacturing accuracy and assembly accuracy are simplified. Therefore, it is possible to realize an automatic fire extinguishing mechanism that automatically detects and automatically extinguishes when the fuel tank is pulled up with a simple configuration, and can be easily assembled together with the control circuit board of the fuel system for maintenance. It is intended to provide an extremely innovative combustion device that is extremely easy to use.

  The gist of the present invention will be described with reference to the accompanying drawings.

  A tank storage portion 5 for storing the fuel tank 3 for supplying fuel to the combustion device 2 of the combustion device main body 1 so as to be freely removable from the upper outlet 4 is provided on the side of the combustion device main body 1. A control circuit board 7 for controlling the combustion of the combustion device 2 is provided in front of the tank guide plate 6 serving as the inner wall surface on the front side, and an opening 8 is provided below the control circuit board 7 in front of the tank guide plate 6. A tank storage detection unit main body 9 is attached to the opening 8, and a movable part 10 is rotatably provided in the tank storage detection unit main body 9, and an inner end portion of the movable part 10 is interposed through the opening 8. When the fuel tank 3 is stored in the tank storage portion 5 from the upper outlet 4 in a protruding state, the inner end portion comes into contact with the outer surface of the fuel tank 3 and Movable part 10 in the direction of sinking The tank storage detection unit main body 9 is provided with a non-contact type detection unit 11 for detecting magnetic force, and the movable unit 10 returns to the protruding direction when the fuel tank 3 is taken out of the movable unit 10. A magnet 12 that is detected by the non-contact detection unit 11 at the rotated position or detected by the non-contact detection unit 11 at a position rotated in the sag direction when the fuel tank 3 is stored; When the fuel tank 3 is taken out and the movable part 10 is automatically turned back in the projecting direction and the inner one end part projects into the tank housing part 5, the magnet 12 is brought into contact with the non-contact detection part 11. Or an automatic fire extinguishing mechanism 13 for automatically forcibly extinguishing the combustion by the combustion device 2 when the magnet 12 is not detected by the non-contact detection unit 11 It is related to.

  Further, the movable portion 10 is pivotally attached to the tank housing detection unit main body 9 so that the inner end portion of the movable portion 10 is in an unloaded state when the fuel tank 3 is taken out and is not in contact with the fuel tank 3. The shape and the pivoting position of the movable part 10 are set so as to project into the tank housing part 5 through the opening 8, and the fuel tank 3 is taken out to be pushed by the fuel tank 3 and swiveled. When the movable part 10 that has been moved returns and rotates due to its own weight and the inner end part protrudes into the tank storage part 5, the magnet 12 provided in the movable part 10 detects the proximity. The non-contact detection unit 11 is provided at a position where the fuel tank 3 is taken out, and the automatic fire extinguishing mechanism 13 is configured to forcibly extinguish upon detection of the non-contact type detection unit 11 when the fuel tank 3 is taken out. The combustion device according to claim 1 Is shall.

  Further, the tank housing detection unit main body 9 is provided with a protective wall portion 14 for preventing the intrusion of other members into the rotation trajectory in the moving direction of the movable portion 10. The combustion apparatus according to any one of the above.

  Further, the distance between the hole edge or the peripheral portion of the opening 8 provided in the tank guide plate 6 made of metal and the magnet 12 of the movable portion 10 that has been brought out of the fuel tank 3 and protruded, The combustion apparatus according to any one of claims 1 to 3, wherein an attracting force by the magnet 12 is close to a distance acting as a force for maintaining the protruding state.

  In addition, a bent convex portion that protrudes upward as compared with the base end side as a shape in which a distal end portion is bent upward at the inner one end portion that contacts the outer surface of the fuel tank 3 of the movable portion 10. 18. The combustion apparatus according to claim 1, wherein 18 is provided.

  In addition, an inclined end surface 19 is formed on the distal end surface of the inner one end portion that is in contact with the outer surface of the fuel tank 3 of the movable portion 10 and generates a rotational force in the sinking direction when pressed toward the proximal end side. The combustion apparatus according to any one of claims 1 to 5, which is characterized by the above.

  In addition, as a configuration in which the thickness of the movable portion 10 is changed and the position of the center of gravity of the movable portion 10 is adjusted, when the fuel tank 3 is taken out from the tank storage portion 5, it is pushed by the fuel tank 3 and swivels. The combustion apparatus according to any one of claims 1 to 6, wherein the movable section 10 is configured to automatically return to the protruding state and rotate by its own weight.

  8. The combustion apparatus according to claim 1, wherein a point contact protrusion 17 is provided on a rotating sliding surface around the shaft-attached portion of the movable portion 10. It is.

  The bearing hole 15 of the tank storage detection unit main body 9 on which the movable part 10 is pivotally mounted is an outer closed storage hole 15 whose outer hole bottom is closed. This relates to the combustion device described in item 1.

  The dust removal slit (16) communicating with the bearing hole (15) of the tank storage detection unit main body (9) on which the movable part (10) is pivotally attached is provided. It relates to combustion equipment.

  Since the present invention is configured as described above, a non-contact type detection unit 11 that detects removal of the fuel tank by detecting the proximity of the magnet is provided in the movable part that is rotated and changed depending on the presence or absence of the fuel tank. The detection unit is configured by installing it in the storage detection unit main body, and this detection unit is provided in front of the tank guide plate on which the control circuit board of the combustion device is installed, so that complicated stroke management is not required and manufacturing accuracy and assembly accuracy are simplified. Therefore, it is possible to realize an automatic fire extinguishing mechanism that automatically detects and automatically extinguishes when the fuel tank is pulled up with a simple configuration, and can be easily assembled together with the control circuit board of the fuel system for maintenance. It becomes extremely innovative combustion equipment such as extremely easy.

  Further, in the invention described in claim 2, it becomes a combustion device with further practicality that can exhibit the effects and advantages of the present invention more reliably and reliably.

  Further, in the invention according to claim 3, the movable part may come into contact with peripheral parts when it is dropped or shocked, resulting in malfunction, or the wiring is left in the rotating track during maintenance. Thus, it becomes possible to prevent malfunction and the like, and it becomes an extremely excellent combustion device.

  According to a fourth aspect of the present invention, a magnetic force (adsorptive force) is reduced by reducing the distance between the hole edge of the opening through which the movable part rotates (for escape) and its periphery and the magnet of the movable part. Therefore, it is possible to reduce the number of malfunctions by suppressing the swinging and turning of the moving part by mistake when the device is tilted or by impact. It becomes a combustion device.

  Further, in the invention according to claim 5, a bent convex portion in which an inner one end portion which becomes a contact arm portion of the movable portion is formed in a bent shape (bent shape) and protrudes upward as compared with the base end side. Therefore, when the fuel tank is inserted and the outer surface comes into contact with the movable portion to rotate, the shape comes into contact with the outer surface of the fuel tank early so that it can be rotated greatly. The length of the contact arm portion) can be shortened, and the detection unit can be downsized.

  Further, in the invention described in claim 6, since the tip end face has the inclined end face, the movable part is easily rotated at the time of impact, and an impact is applied (transmitted) to the detection unit (tank storage detection unit main body which is a fixed part). ) Can be prevented and the durability can be improved accordingly.

  Further, in the invention of claim 7, since the center of gravity is adjusted by changing the thickness, there is no need to change the outer shape, so the degree of freedom in design of the movable part increases, that is, up to different fuel tanks depending on the model to be applied. When designing the outer shape of the movable part according to the gap length or the installation space at the mounting position, the adjustment of the center of gravity for balance adjustment is performed by changing the thickness, in other words, even if the outer shape is the same Since the shapes are made to have different thicknesses, the degree of freedom in designing the movable part is increased, and the combustion device is more practical.

  In the invention described in claim 8, since the point contact protrusion is provided on the sliding surface between the movable part and the tank storage detection unit main body, the sliding contact area during rotation can be reduced, and the adhesive substance It becomes a more excellent combustion apparatus which can suppress that it adheres or a rotation operation does not go smoothly.

  Further, in the invention described in claim 9, it is possible to suppress the intrusion of dust or the like into the shaft mounting portion, and in the invention described in claim 10, it is further excellent that the intruding dust can be easily eliminated or eliminated. It becomes a combustion device.

It is a description exploded perspective view of a present Example. It is a description side view at the time of the fuel tank accommodation of a present Example. It is a description exploded perspective view of the detection unit of a present Example. It is explanatory side sectional drawing of the principal part at the time of fuel tank accommodation of a present Example. It is a description sectional side view of the principal part in the middle of taking out the fuel tank of a present Example. It is a description sectional side view of the principal part at the time of fuel tank taking-out of a present Example. It is a description top view of the principal part of a present Example. It is operation | movement explanatory drawing which shows that the attractive_force | adsorptive_power by the magnet of a present Example turns into the holding force at the time of inclination. It is an explanatory back view of the principal part of a present Example. It is explanatory perspective view which shows an Example at the time of providing a non-contact-type detection part in the bottom part of the tank storage detection unit main body of a present Example.

  Embodiments of the present invention that are considered suitable (how to carry out the invention) will be briefly described with reference to the drawings, illustrating the operation of the present invention.

  In a normal state, that is, in a no-load state in which the fuel tank 3 is taken out, the movable portion 10 is rotated around the tank storage detection unit main body 9 so that the inner one end serving as the contact arm portion protrudes inward of the tank storage portion 5. The tank housing detection unit main body 9 is provided with a non-contact type detection unit 11 that is detected by the proximity of the magnet 12 provided on the movable unit 10. This detection unit is provided below the control circuit board 7 for controlling the combustion device 2 in front of the tank guide plate 6. The inner end of the movable part 10 is located on the back side of the tank through the opening 8 provided at this position. It attaches so that it may protrude in the accommodating part 5. FIG.

  That is, the movable portion 10 provided in the tank storage detection unit main body 9 can be rotated and protruded and retracted and retracted into the tank storage portion 5 on the back side of the tank guide plate 6 through the opening 8. The tank housing detection unit main body 9 is attached so as to be positioned below the control circuit board 7 in front of the tank guide plate 6.

  When there is no fuel tank 3 in the tank storage unit 5, the inner end of the movable unit 10 provided in the tank storage detection unit main body 9 protrudes into the tank storage unit 5, and the fuel is stored in the tank storage unit 5. When the tank 3 is inserted, the inner one end projecting from the opening 8 is pressed (pressed) against the outer surface of the fuel tank 3, and the movable part 10 is retracted and rotated in the sunk direction, so that the fuel tank 3 is provided. (For example, the magnet 12 is not detected by the non-contact detection unit 11).

  When the fuel tank 3 is taken out, the movable part 10 automatically returns and pivots so that the inner one end projects again into the tank storage part 5 and the magnet 12 of the movable part 10 again becomes the tank storage detection unit. It is detected in the vicinity of the non-contact type detection unit 11 of the main body 9, and it is detected that the fuel tank 3 is taken out or taken out.

  By this detection, the combustion device 2 automatically forcibly extinguishes even during combustion.

  Therefore, the movable part 10 rotates reliably depending on the presence / absence of the fuel tank 3 and the movement of the movable part 10 is detected by the magnet 12 and the non-contact type detection unit 11 in a non-contact manner, so that the stroke is difficult to manage. No management is required, high manufacturing accuracy and assembly accuracy are not required, and the tank storage detection unit main body 9 (detection unit) provided with the movable part 10 so as to be rotatable can be simply attached to the tank guide plate 6. Since it only needs to be fitted to the opening 8 on the front surface of the tank guide plate 6, it can be sequentially assembled together with the control circuit board 7 of the combustion device 2 which is also assembled to the tank guide plate 6, so that the assembly work is further simplified. Also, maintenance with the control circuit board 7 can be performed very easily.

  A first embodiment of the present invention will be described with reference to the drawings.

  In this embodiment, the present invention is applied to a combustion device such as an oil fan heater equipped with an automatic fire extinguishing mechanism 12 that automatically outputs a fire extinguishing signal when a cartridge tank (fuel tank 3) is pulled up during refueling, and is automatically forced to extinguish. Has been applied.

  That is, in the present embodiment, a tank storage unit 5 is provided at the side of the combustion device main body 1 so that the fuel tank 3 can be taken out from the upper outlet 4 with an openable / closable canopy. A combustion section of the combustion device 2 is provided, and for example, kerosene is supplied to the tray portion via a valved fuel cap at the lower end of the fuel tank 3 stored upside down, and sent from the tray portion to the vaporizer of the combustion device 2 for vaporization. It is configured to burn in the jet combustion section.

  A control circuit board 7 for controlling the combustion of the combustion device 2 (combustion by a carburetor, etc.) is provided on the upper part of the front surface of the tank guide plate 6 serving as the inner wall surface on the front side of the tank housing portion 5. An opening 8 is provided below the control circuit board 7 so as to be juxtaposed with the control circuit board 7 in front of the plate 6, and a detection unit (a tank in which the movable part 10 is rotatably provided) is provided in the opening 8. A storage detection unit main body 9) is attached.

  Therefore, by attaching the detection unit to the front surface of the tank guide plate 6 and removing the front cover plate of the combustion apparatus main body 1, the detection units arranged side by side with the control circuit board 7 are exposed to the front, and wiring and vaporization are performed. By being exposed together with the container, it becomes a configuration that is extremely easy to maintain and assemble.

  Specifically, an opening 8 is formed in a tank guide plate 6 made of a metal plate, and a locking portion of the tank storage detection unit main body 9 is locked in the opening 8 and fixed by screws or the like. The inner end of the movable part 10 provided rotatably in the tank storage detection unit main body 9 is configured to protrude into the tank storage part 5 through the opening 8.

  Further, the protruding length is set to be longer than the gap between the tank guide plate 6 and the combustion tank 3 when stored, and the fuel tank 3 is stored in the tank storing portion 5 from the upper outlet 4 in the protruding state. At this time, the inner end is brought into contact with the outer surface of the fuel tank 3 so that the movable part 10 is pushed and rotated in the sunk direction.

  Further, the tank storage detection unit main body 9 is provided with a non-contact type detection unit 11 (for example, a reed switch) for detecting the magnetic force of the magnet 12 provided on the movable unit 10 so that the movable unit 10 is automatically operated when the fuel tank 3 is taken out. When the magnet 12 is detected by the non-contact type detection unit 11 when it returns to the protruding direction and turns into the tank storage unit 5, the combustion by the combustion device 2 is forcibly extinguished. The automatic fire extinguishing mechanism 13 is configured to output a fire extinguishing signal or to output a signal that causes the trigger or control circuit to switch to the digestion mode.

  More specifically, the movable portion 10 is pivotally mounted like a swing on a tank housing detection unit main body 9 made of resin, and when the fuel tank 3 is taken out and is not in contact with the fuel tank 3, the load is detected. The shape and pivot position of the movable part 10 are set so that one end of the inner part that becomes the contact arm part of the movable part 10 protrudes into the tank housing part 5 through the opening 8, and the fuel tank 3 is The movable part 10 that has been pushed and swung by the combustion tank 3 by taking out is returned and turned by its own weight, and the inner one end portion projects into the tank storage part 5, and the movable part 10. The magnet 12 provided in the proximity is detected by the non-contact detection unit 11 in proximity.

  Specifically, both the movable part 10 serving as a rotating part and the tank storage detection unit main body 9 serving as a fixed part of the detection unit are formed of resin as described above, but the tank storage unit main body 9 is non-contact. The left and right parts of the opening 8 formed in a T-shape at the upper ends of the opposed standing parts 20 standing on the left and right sides of the lower part, and the lower part is set as a screw fixing mounting part. It is set as the structure which provided the latching | locking part latched in this.

  To explain further, the non-contact type detection unit 11 is disposed on one of the left and right opposing standing parts 20 of the lower screw fixing mounting part, and the bearing holes 15 are provided on the inner side of the upper end part of the opposing standing part 20, The left and right shafts are fitted into the bearing hole 15 so that the movable part 10 is pivotably provided between the opposed standing parts 20 like a swing, and a magnet 12 is housed and disposed below the movable part 10. , By setting the center of gravity position including the weight part of this movable part 10 and the magnet 12, etc., the magnet 12 becomes the lower part in the no-load state, and the inner one end part is balanced in a state protruding horizontally between the opposed standing parts 20, The magnet 12 is configured to be detected by the non-contact type detection unit 11 that is located between the opposed upright portions 20 and provided on one side thereof.

  That is, the movable part 10 is configured so that the shaft part provided at the upper part is attached to the bearing hole 15 and suspended between the opposed standing parts 20, and the magnet 12 provided at the lower part of the main body part of the movable part 10 When the non-contact type detection unit 11 is positioned at the position, the inner one end portion as a contact arm portion that protrudes horizontally to the tank storage portion 5 on the back side of the tank guide plate 6 protrudes from the main body portion through the opening portion 8. As described above, in the no-load state (normal state), as described above, the magnet 12 is detected in proximity to the non-contact type detection unit 11 and the inner end portion is balanced in a state of projecting horizontally into the tank storage unit 5. It is composed.

  Further, the tank housing detection unit main body 9 is provided with a protective wall portion 14 for preventing the intrusion of other members into the rotation track in the moving direction of the movable portion 10.

  That is, a plate-shaped protective wall portion 14 is provided on the tank housing detection unit main body 9 on the side of the movable portion 10 so as to cover the rotation range of the movable portion 10.

  Specifically, in this embodiment, this protective wall portion 14 is connected to at least one of the opposed standing portions 20 by integral molding, and the movable portion 10 is pivoted and retracted outward when the fuel tank 3 is stored. The range to be covered is at least covered. That is, the protective wall portion 14 is formed so that the shape of the opposed standing portion 20 is greatly protruded outward. Therefore, it is possible to prevent peripheral parts and wiring from invading and coming into contact with the movable part 10 due to dropping or impact, etc., but especially when the wiring clip is removed during maintenance, the wiring remains in the track, and It will be possible to prevent troubles in dynamic operation.

  In addition, although the upper part of the opposing upright part 20 may be connected and surrounded in a U shape so as to allow the rotation of the movable part 10, in this case, this detection unit becomes so large. The protective wall 14 that covers only the sides is downsized.

  Further, the distance between the hole edge or the peripheral portion of the opening 8 provided in the metal tank guide plate 6 and the magnet 12 of the movable portion 10 which has been taken out of the fuel tank 3 and is in a projecting state is defined as the magnet. It is close to the distance at which the adsorption force by 12 acts as a force for maintaining the protruding state.

  That is, the distance between the hole edge and the periphery of the opening 8 through which the movable part 10 rotates (for escape) and the magnet 12 of the movable part 10 is reduced to a distance where the magnetic force (adsorption force) acts. Thus, this attracting force becomes a holding force or an urging force that tends to be in the protruding state, and the movable part 10 swings and rotates accidentally when the device tilts or due to an impact, or returns to the protruding state and rotates. The malfunction is suppressed by suppressing the return.

  Although it may be energized with a spring or the like, the number of parts is increased and the mass productivity is inferior. Further, if the magnet 12 itself is strengthened, it may cause a malfunction. The holding force is generated by the attracting force of the magnet 12 by bringing the metal portion close to the magnet 12 by setting the shape and the shape of the hole such as inflating the peripheral portion.

  Further, in this embodiment, the inner end portion that contacts the outer surface of the fuel tank 3 of the movable portion 10 has a distal end portion that extends horizontally inward from the distal end side and is bent upward as compared to the proximal end side. A bent convex portion 18 that protrudes upward is provided.

  In other words, the fuel tank 3 is provided with a bent convex portion 18 that is formed in a bent shape (bent shape) at the inner end portion that becomes the contact arm portion of the movable portion 10 and protrudes upward as compared with the base end side. When the movable portion 10 is rotated by inserting the outer surface into contact with the outer surface, the inner end portion of the movable portion 10 (contact arm portion) is formed. ) Can be shortened, and the detection unit can be downsized.

  Further, an inclined end surface 19 is formed on the distal end surface of the inner one end portion, which generates a rotational force in the sinking direction when pressed toward the proximal end side.

  That is, the tip end face is not a mere flat surface but is formed on an inclined end face 19 that protrudes downward, and when the inner end is pressed outward during an impact, the movable part 10 rotates without receiving it from the front. Since it becomes easy, one end part of the inner side is rotated downward so as to avoid a load at the time of impact, and it is possible to prevent the impact from being applied to the detection unit (tank storage detection unit main body 9 which is a fixed part), and durability can be improved.

  In this embodiment, the thickness of the movable part 10 is changed to adjust the position of the center of gravity of the movable part 10. Specifically, when the fuel tank 3 is taken out with the part opposite to the inner one end of the movable part 10 being taken out, the movable part 10 that has been pushed and swung by the fuel tank 3 is automatically moved by its own weight. The balance of the center of gravity is set so as to return to the protruding state and rotate.

  Therefore, since the center of gravity is adjusted by changing the thickness, there is no need to change the outer shape, so the degree of freedom in designing the movable portion 10 increases, that is, the gap length and the mounting position up to the fuel tank 3 that differ depending on the model to be applied. When designing the outer shape of the movable part 10 according to the arrangement space, etc., the adjustment of the center of gravity position for balance adjustment is performed by changing the thickness, in other words, even if the outer shape is the same, the thickness is different at various places. Because of the shape, the degree of freedom in designing the movable part 10 is increased.

  In addition, a point contact protrusion 17 is provided on the rotational sliding surface around the shaft attachment portion of the movable portion 10.

  Specifically, an upper end of the opposed standing portion 20 of the tank storage detection unit main body 9 that forms a rotational sliding surface around the shaft portion of the movable portion 10 and is provided with a bearing hole 15 for fitting the shaft portion. This part is also provided with a rotating sliding surface that receives this, but in order to always ensure smooth rotation in response to variations in molding accuracy, a point contact convex portion 17 is provided on one of these rotating sliding surfaces. The protrusion is formed.

  In this embodiment, a plurality of rounded protrusions are formed on the rotational sliding surface of the opposed standing portion 20 with the axis as a boundary, thereby reducing the sliding contact area during rotation. Thus, it is possible to prevent the sticking or rotating operation by the adhesive substance from being smoothly performed.

  Further, the bearing hole 15 of the tank storage detection unit main body 9 that is fitted and attached to the shaft portion of the movable portion 10 is an outer closed storage hole 15 that closes the outer bottom of the hole. A dust removing slit 16 is provided in communication.

  Accordingly, it is possible to prevent dust and the like from entering the shaft mounting portion, and it is possible to easily eliminate or easily remove the invading dust. Even when the storage hole for dust entry is used, the dust removal slit 16 As a result, the shaft can be easily attached.

  The present invention is not limited to the above-described embodiment. For example, as shown as another example, the non-contact type detection unit 11 is not opposed to the side portion of the opposed standing portion 20 of the tank storage detection unit main body 9, but is opposed to the non-contact type detection unit 11. It may be provided in the lower part of the bottom between the standing parts 20, and the specific structure of each constituent element can be designed as appropriate.

DESCRIPTION OF SYMBOLS 1 Combustion apparatus main body 2 Combustion device 3 Fuel tank 4 Upper outlet 5 Tank storage part 6 Tank guide plate 7 Control circuit board 8 Opening 9 Tank storage detection unit main body
10 Moving parts
11 Non-contact detector
12 magnets
13 Automatic fire extinguishing mechanism
14 Protective wall
15 Bearing hole, outer closed storage hole
16 Dust exclusion slit
17 Point contact protrusion
18 Bent convex
19 Inclined end face

Claims (10)

  A tank storage portion for storing a fuel tank for supplying fuel to the combustion device of the combustion device main body through the upper outlet is provided on the side of the combustion device main body, and serves as a front inner wall surface of the tank storage portion. A control circuit board for controlling the combustion of the combustion device is provided in front of the guide plate, an opening is provided below the control circuit board in front of the tank guide plate, and a tank storage detection unit main body is attached to the opening. The tank storage detection unit main body is provided with a movable part so as to be rotatable, and an inner end of the movable part is provided so as to protrude into the tank storage part through the opening, and the tank storage is provided from the upper outlet. The tank storage detection unit is configured such that when the fuel tank is stored in a part, the inner end is in contact with the outer surface of the fuel tank and the movable part is rotated in the sinking direction. The body is provided with a non-contact detection unit that detects magnetic force, and the movable unit is detected by the non-contact detection unit at a position where the movable unit returns and rotates in the protruding direction when the fuel tank is taken out from the movable unit. A magnet that is detected by the non-contact type detection unit is provided at a position that is rotated in the sinking direction when the fuel tank is stored, the fuel tank is taken out, and the movable unit is automatically rotated back in the protruding direction to rotate the tank. When the inner end of the storage portion is in a protruding state, the magnet is detected by the non-contact detection unit or the magnet is no longer detected by the non-contact detection unit. Combustion equipment characterized by an automatic fire extinguishing mechanism that automatically forcibly extinguishes.   When the movable portion is pivotally attached to the tank storage detection unit main body and the fuel tank is taken out and is not in contact with the fuel tank, the inner end of the movable portion is connected to the tank via the opening. The shape and the pivot position of the movable part are set so as to project into the storage part, and the movable part that has been swung and swung by the fuel tank by taking out the fuel tank is returned by its own weight. The non-contact type detection unit is provided at a position where the magnet provided in the movable unit is detected in proximity when the inner one end portion protrudes into the tank storage unit. The combustion apparatus according to claim 1, wherein the automatic fire extinguishing mechanism is configured to forcibly extinguish by detection of the non-contact type detection unit when taken out.   3. The tank housing detection unit main body is provided with a protective wall portion that prevents an intrusion of another member into the rotation track in the moving direction of the movable portion. Combustion equipment as described in.   The distance between the hole edge or the peripheral portion of the opening provided in the tank guide plate made of metal and the magnet of the movable part that has been taken out of the fuel tank and is in a protruding state is determined by the attraction force by the magnet. The combustion apparatus according to any one of claims 1 to 3, wherein the combustion apparatus is close to a distance acting as a force for maintaining a protruding state.   The inner end of the movable portion that contacts the outer surface of the fuel tank is provided with a bent convex portion that protrudes upward as compared to the base end side as a shape in which a distal end portion is bent upward. The combustion device according to any one of claims 1 to 4, wherein   The inclined end surface that generates a rotational force in the retracting direction when pressed to the base end side is formed on the distal end surface of the inner one end portion that contacts the outer surface of the fuel tank of the movable portion. The combustion device according to any one of 1 to 5.   As a configuration in which the thickness of the movable part is changed and the position of the center of gravity of the movable part is adjusted, when the fuel tank is taken out from the tank storage part, the movable part pushed and submerged by the fuel tank is moved by its own weight. The combustion apparatus according to any one of claims 1 to 6, wherein the combustion apparatus is configured to automatically return to the protruding state and rotate.   The combustion apparatus according to any one of claims 1 to 7, wherein a point contact protrusion is provided on a rotational sliding surface around a shaft attachment portion of the movable portion.   The combustion according to any one of claims 1 to 8, wherein a bearing hole of the tank storage detection unit body that pivotally mounts the movable part is an outer closed storage hole in which an outer hole bottom is closed. machine.   The combustion equipment according to any one of claims 1 to 9, further comprising a dust removal slit that communicates with a bearing hole of the tank housing detection unit body that pivotally mounts the movable portion.

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