JPH0748001B2 - Liquid fuel combustion device - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to an upper and lower wick type liquid fuel combustion apparatus used as a portable stove or the like.

[Technical Background of the Invention and Problems Thereof] This type of combustion device continues combustion through a wick, that is, a cylindrical wick woven with fibers or the like is provided on the outer periphery of a wick guide tube so as to be vertically movable. The lower end of this wick is constantly immersed in the liquid fuel. Then, during the combustion operation, the wick is raised so that the upper end of the wick is exposed to the fire tray, that is, the combustible region is positioned. At this position, the upper end is ignited to continue combustion.

Further, in this type of combustion device, an anti-earthquake fire extinguishing mechanism is provided that automatically lowers the wick and extinguishes it when vibrations of a certain magnitude or more are applied to the entire device due to an earthquake.

However, conventionally, in connection with the anti-seismic automatic fire extinguishing mechanism, apart from the mechanism for directly raising the wick,
A mechanism for finely adjusting the wick up and down is provided in order to adjust the combustion heat power, and thus there is a problem in that the structure is complicated and expensive.

[Object of the Invention] The present invention has been made paying attention to such a point, and most of the mechanism for performing the raising operation of the wick and the mechanism for finely adjusting the wick up and down to adjust the combustion thermal power. An object of the present invention is to provide a liquid fuel combustion apparatus that is common and has a simple structure and is inexpensive.

[Summary of the Invention] In order to achieve such an object, the present invention provides a wick that is impregnated with liquid fuel so as to be able to move up and down, raises the wick to an ignition position at the start of combustion, and in this state, the upper end of the wick. In the case of igniting and burning a vehicle, a vibration detection arm that rotates according to the occurrence of vibration, an operation shaft that rotates forward and backward to raise and lower the wick, and an interlocking unit that is rotatably provided on this operation shaft. A lever, an ignition device that interlocks with the interlocking lever, an operating lever that interlocks with the interlocking lever to normally rotate the operating shaft by a certain angle when the wick is raised, and a wick that interlocks with the operating lever when the wick moves up Is provided on one side edge of the locking lever, which engages with the vibration detection arm when the arm moves to the ignition position and stops, and reverses when the wick descends to reverse the operating shaft by a certain angle. The
A bending piece for rotating the locking lever by abutting the operation lever when the wick is raised, and by pushing down the interlocking lever integrally with the operation lever,
The operation shaft is rotated in the forward direction to raise the wick to the ignition position, the ignition mechanism interlocked with the interlocking lever ignites the wick, and the operation lever contacts the bent piece of the locking lever. The lock lever is brought into contact with the vibration detection arm to be engaged with the vibration detection arm, the wick is held at the combustion position by this engagement, and the wick is vertically displaced by the rotation of the operation lever. The width of the control lever is regulated by bringing the operating lever into contact with the bent piece of the locking lever.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings.

In the figure, 1 is a base, and a fixed tank 2 is provided on the base 1. From the inner bottom surface of one end of the fixed tank 2 to the core guide tube 3
And the upper end of the lead guide tube 3 faces above the fixed tank 2 through an opening 4 formed in the upper surface thereof.
A cylindrical wick 5 made of incombustible fiber is fitted on the outer periphery of the wick guide tube 3 so as to be movable up and down. A metal lead holder 6 is attached to the outer periphery of the wick 5, and the wick holder 6 covers the outer periphery of the lower half of the wick 5 and has a collar 7 at the upper end edge. The core holder 6 and the core holder 6 are integrally moved up and down.

On the upper surface of the fixed tank 2, a burner basket 8 which is arranged concentrically with the core guide cylinder 3 protruding from the opening 4 and covers the outer circumference thereof is detachably provided. The burner basket 8 has a bent piece 9 which is bent outward at an upper edge thereof, and the bent piece 9 and a plate member 10 provided on the upper end of the core guide tube 3 constitute a fire tray portion 11. There is. And this burning tray 11
Twelve are mounted detachably. A refueling port 13 is formed on the upper surface of the other end of the fixed tank 2, and a cartridge tank (not shown) is attached to the refueling port 13 to keep a constant level in the fixed tank 2 at all times. Liquid fuel such as kerosene is supplied, and the lower end of the wick 5 is constantly immersed in this fuel.

A substrate 14 is vertically provided on the front side of the fixed tank 2, and an operation shaft 15 is rotatably inserted from the substrate 14 to the inside of the fixed tank 2. An interlocking body 16 is fixed to the operation shaft 15 inside the fixed tank 2. The interlocking body 16 has a pair of arms 17 and 18 that are perpendicular to the operation shaft 15 and face each other, and these arms 17 and 18 are arranged on both side surfaces of the lead holder 6. Long attachment grooves 19 and 20 are formed at the tips of the arms 17 and 18 along the longitudinal direction thereof. The mounting groove 19 of one arm 17 is opened to the upper edge side of the arm 17 through an open path 21 formed by notching on the tip side thereof, and the other arm 18
The mounting groove 20 is open to the upper edge side of the arm 18 through an open passage 22 formed by cutting out at the base end side. That is, open paths 21 and 22
And are located on opposite sides of each other. Shafts 23 and 24 are provided on both side surfaces of the lead holder 6, and these shafts 23 and 24 are loosely fitted in the mounting grooves 19 and 20, respectively. An appropriate oil leakage prevention means is provided on the portion where the operation shaft 15 penetrates the wall surface of the fixed tank 2.

A connecting cylinder 25 is provided at one end of the operating shaft 15 protruding from the fixed tank 2.
Are fixed via screws 26, and the connecting cylinder 25 is rotatably supported by the substrate 14 via bearings 27. An operating lever 28 and an interlocking lever 29 are provided inside the substrate 14, and one end of each of the operating lever 28 and the interlocking lever 29 is connected to the connecting tube 25. The operating lever 28 is connected to the connecting cylinder 2 via the tongue pieces 30, 30 formed integrally with the connecting cylinder 25.
It is fixed to 5, and the interlocking lever 29 is rotatably supported by the connecting tube 25. Further, a locking lever 31 is rotatably supported on the connecting cylinder 25 between the operation lever 28 and the interlocking lever 29. The locking lever 31 has a hook-shaped locking portion 32 on one end side and a bending piece 33 bent at a right angle on the other side lower edge, and a spring 34 is used to interpose the spring 34 in the drawing. It is elastically biased counterclockwise. The bent piece 33 abuts on the lower edge of the operating lever 28, and the abutment also elastically urges the operating lever 28 counterclockwise by the spring 34 integrally with the locking lever 31. There is.

An ignition operating plate 35 and a thermal power operating plate 36 are provided on the front surface of the substrate 14 so as to be vertically movable. These operation plates 3
5,36 has knobs 37,38 on the front surface and pins 39,40 on the back surface, respectively. And the pin 39 of the ignition control plate 35 is the control lever.
It goes through the upper edge portion of the other end side of 28 and is loosely fitted in the long hole 41 of the other end of the interlocking lever 29. Pin 40 of the thermal power control plate 36 is the substrate 14
An elongated long hole 58 formed vertically is inserted through the elongated hole 58, and the elongated hole 58 regulates the vertical movement range of the thermal power operation plate 36 to a certain range. One end of a connecting lever 42 is rotatably attached to the tip of the pin 40, and one end of an adjusting lever 43 is rotatably attached to the other end of the connecting lever 42 via a pin 44. The adjusting lever 43 has a support pin in the middle part.
45 is provided so as to project, and an engaging groove 46 is cut out at the other end edge in the longitudinal direction. The support pin 45 is loosely engaged with a long hole 47 formed in the substrate 14 in the lateral direction, and elastically biased to one end of the long hole 47 by a spring 48 sealed in the substrate 14. Being energized. An arcuate introduction portion 49 is formed at a portion connecting one side edge of the engagement groove 46 and an upper edge of the adjustment lever 43.
An engagement pin 50 that is engageable with and disengageable from the engagement groove 46 is provided on the side surface on the other end side of the operating lever 28.

An anti-vibration automatic fire extinguishing mechanism is provided on the inner surface portion on one end side of the substrate 14, and 51 is its frame, and a seismic pendulum 52 is provided on the upper surface of this frame 51. On the lower surface side of the frame 51, a vibration detecting arm 53 that is bent in an approximately L shape is rotatably provided via a pin 54. This vibration detection arm 53
Has a sensing portion 55 at one end side with the pin 54 as a boundary, and a locking receiving portion 56 that can be engaged with and disengaged from the locking portion 32 of the locking lever 31 at the other end side. And through the spring 57 at all times,
It is elastically biased counterclockwise in the figure. Frame 51
Through holes 51a and 55a are formed in the upper surface of the sensor and the sensing portion 55, and a shaft 59 protruding from the seismic pendulum 52 loosely inserts the through holes 51a and 55a, and a disk 60 is provided at the tip of the shaft 59. Is installed. When the seismic pendulum 52 tilts due to the occurrence of an earthquake, the peripheral edge of the disk 60 comes into contact with the lower surface of the sensing unit 55 and the vibration detection arm 53 is rotated against the spring 57. Further, a manual fire extinguishing lever 61 is rotatably provided on the frame 51, and the vibration detecting arm is separated from the operation of the seismic pendulum 52 via the manual fire extinguishing lever 61.
It is possible to rotate 53. A knob 62 is provided at the tip of the manual fire extinguishing lever 61, and the knob 62 faces the front surface side of the substrate 14.

An ignition mechanism is provided on the outer surface of the burner basket 8.
63 is the frame. Ignition lever 64 on frame 63
Is rotatably provided via a shaft 65.
An ignition heater 66 is attached to the tip of the. Ignition lever
64 is elastically urged in a direction away from the burner basket 8 by a spring 67, that is, in the clockwise direction in the figure, and has a bracket 68 at an intermediate portion. It is rotatably attached via. An engaging portion 71 is formed at the other end of the push-up lever 69, and the engaging portion 71 is engaged with the lower end edge of the protective cylinder 72 arranged on the outermost periphery of the combustion cylinder 12 in a loosely engaged state. flame
An electrode plate 73 that is electrically connected to a dry battery (not shown) is provided on the 63, and the electrode plate 73 faces the ignition lever 64 and comes into contact with the ignition lever 64 as the ignition lever 64 is rotationally displaced. It is designed to energize 66. A shaft 74 is provided at the end of the bracket 68, and one end of a transmission lever 75 is engaged with the shaft 74. A support plate 76 is provided on the inner surface of the substrate 14, and an intermediate portion of the transmission lever 75 is rotatably supported by the support plate 76 via a pin 77. Then, the other end of the transmission lever 75 and the intermediate portion of the interlocking lever 29 are connected by a connecting member 78. Further, a spring 79 is stretched between the other end of the transmission lever 75 and the support plate 76, and the spring 79 urges the interlocking lever 29 upward, that is, in the counterclockwise direction in the drawing, via the connecting strip 78. There is.

Next, the operation will be described. In the combustion standby state,
The operating lever 28 and the interlocking lever 29 are respectively tilted upward with the connecting cylinder 25 as a fulcrum, and the wick 5 is located at the lower end of the core guide cylinder 3. From this state, pick the ignition control plate 35 37
When pushed down via, the interlocking lever 29 will
It rotates clockwise about the connecting cylinder 25 as a fulcrum against 79. At this time, the operating lever 28 is pushed down by the pin 39 provided on the back surface of the ignition operating plate 35, and rotates together with the interlocking lever 29. With this rotation, the engagement pin 50 of the operation lever 28 first comes into contact with the introduction portion 49 of the adjustment lever 43, and due to this contact, the adjustment lever 43 is pushed leftward against the spung 48,
By this operation, the engagement pin 50 passes through the introduction portion 49, and after this passage, the adjustment lever 43 is returned to the right by the urging force of the spring 48, and the engagement pin 50 engages with the engagement groove 46. Even after this engagement, the engagement pin 50 further descends, and this lowering causes the adjustment lever 43 to rotate clockwise around the support pin 45 as a fulcrum, and the thermal power operation plate 36 is pushed up via the connecting lever 42. Operating lever
The operation shaft 15 is also integrally rotated by the rotation of 28, the wick 5 is pulled up together with the wick holder 6 through the interlocking body 16, and the wick 5 projects into the fire tray 11. The wick 5 is held at the highest ignition position while the operating lever 28 is pushed down to the lowermost position. By the rotation of the interlocking lever 29, the other end side of the transmission lever 75 is pulled down and the one end side is raised via the connecting member 78. Due to this rise, the ignition lever 64 rotates about the shaft 65 as a fulcrum against the spring 67, and with this rotation, the push-up lever 64
69 rises, the combustion cylinder 12 is pushed up with its one end side as a fulcrum and tilted, and the wick 5 of the portion facing the ignition heater 66
The area around is opened. As the ignition lever 64 rotates, the ignition lever 64 contacts the electrode plate 73 and the ignition heater 64
66 is energized, the ignition heater 66 comes into contact with the wick 5 through the open portion, and by this contact, ignition of the wick 5 is achieved. When the operation lever 28 is rotated, the locking lever 31 is also rotated integrally with the operation lever 28, and the hook-shaped locking portion 32 at one end of the locking lever 31 becomes the locking receiving portion 56 of the vibration detection arm 53 of the fire extinguishing mechanism. It makes a temporary contact and passes there.

After the ignition of the wick 5 is achieved, the pushing down of the ignition operating plate 35 by the operator is released, and this release releases the interlocking lever.
29 is rotated counterclockwise by the urging force of the spring 79 and returns to the initial position. In response to this, the ignition lever 64 and the push-up lever 69 are returned to their initial positions by the urging force of the spring 67, and the combustion tube 12 is pulled down and placed on the fire tray 11.
As the interlocking lever 29 returns to rotate, the operating lever 28 and the locking lever 31 also rotate counterclockwise due to the urging force of the spring 34. Immediately after the rotation, the locking portion 32 of the locking lever 31 moves. It is locked to the lock receiving part 56 of the fire extinguishing mechanism, and therefore the operating lever
The amount of rotation of the locking lever 28 and the locking lever 31 is very slightly suppressed. Then, the wick 5 is slightly pulled down from the ignition position in conjunction with the rotation, and is set to the combustion position of high heat power. Therefore, if it is left as it is, the combustion of high thermal power continues.

On the other hand, when the combustion thermal power is set to another medium thermal power or low thermal power, the thermal power operation plate 36 is pushed down to do so.
That is, when the thermal power operation plate 36 is pushed down via the knob 38, its operation is transmitted to the adjustment lever 43 via the connecting lever 42,
The adjusting lever 43 rotates counterclockwise with the support pin 45 as a fulcrum. The adjusting lever 43 is connected to the operating lever 28 by the engagement between the engaging groove 46 and the engaging pin 50, so that the operating lever 28 rotates counterclockwise in conjunction with the adjusting lever 43. The clockwise movement of the operating lever 28 is restricted by the bent piece 33 of the locking lever 31, but the counterclockwise movement is not restricted at all, and therefore the operating lever 28 is linked to the adjusting lever 43. And rotate freely. By this rotation, the wick 5 is pulled down from the burning position of the strong thermal power to the burning position of the medium thermal power or the weak thermal power according to the pushing amount of the thermal power control plate 36, whereby the burning state of the set thermal power is continued. Further, when the combustion state is set to the high heat power again, the heat power operation plate 36 is pushed up to do so.

The moving range of the thermal power control plate 36 is restricted to a constant width by the long hole 58. Therefore, the most lowered position of the wick 5 during combustion is always fixed to an appropriate constant position, and further lowering is prevented. Therefore, incomplete combustion does not occur due to excessive lowering of the wick 5, and proper combustion can always be obtained.
In the present embodiment, the height of the wick 5 projecting from the tray 11 is 8 mm when the heat is strong and 3 mm when the heat is weak, and the wick 5 moves up and down within a range of 5 mm between them to adjust the heating power. To be As described above, the wick 5 moves with a small width of 5 mm, but the moving relation between the wick 5 and the thermal power operation plate 36 interlocking with the wick 5 is that the operation lever 28 and the adjustment lever 4 are mutually related.
3. Since the connection lever 42 communicates with each other, the movement of the thermal power control plate 36 is expanded relative to the movement of the wick 5,
Therefore, the wick 5 can be easily and finely moved stepwise. In the present embodiment, the thermal power control plate 36 is magnified 6 times.
The moving range of is set to 30 mm.

In the conventional device of this kind, the wick is moved up and down by rotating the dial. With such a dial type, when the wick is moved up and down by a large amount, the dial is grasped several times. It often becomes necessary to rotate the dial while fixing it, and therefore the operation is troublesome and time-consuming. However, in this embodiment,
Since the wick 5 is moved up and down by the vertical operation of the thermal power operation plate 36, there is an advantage that the operation can be performed easily and efficiently in one operation.

When the wick 5 is ignited, the wick 5 is moved up from the combustion position to a position above the burning position by high heat. This action causes the locking portion 32 to once move to the position where the locking receiving portion 56 is arranged. It is intended that the locking portion 35 be locked to the locking receiving portion 56 when the wick 5 is passed through and the wick 5 is pulled down from the ignition position to the combustion position of high heat power so that the locking is securely performed. Is. In other words, if the ignition timing and the locking timing are the same, ignition was achieved due to variations in assembly, etc.
The engagement between the engagement portion 35 and the engagement receiving portion 56 is not achieved, and with the release of the pushing down of the ignition operation plate 35, the wick 5 comes out of the combustible area and returns to the initial position below it. Therefore, in order to prevent this, the ignition timing and the locking timing are shifted.

Next, fire extinguishing will be described. Normal extinguishing is performed by pushing down the knob 62 of the manual extinguishing lever 61. When the knob 62 is pushed down, the manual fire extinguishing lever 61 rotates and the vibration detection arm 53
Is rotated clockwise against the spring 57 with the pin 54 as a fulcrum. This rotation causes the lock receiving portion 56 to move the lock lever 31.
The lock lever 31 is separated from the lock portion 32, and the lock lever 31 is rotated counterclockwise by the elastic force of the spring 34 due to this separation. At this time, since the bent piece 33 of the locking lever 31 abuts against the lower edge of the operation lever 28, the operation lever 28 also rotates integrally with the locking lever 31 in the counterclockwise direction. Engagement pin 50 of operating lever 28
Is engaged with the engaging groove 46 of the adjusting lever 43, but is disengaged from the engaging groove 46 by the turning force of the operating lever 28. Operating lever
The wick 5 is rotated through the interlocking body 16 by the counterclockwise rotation of 28.
Is suddenly and greatly lowered, and an instant fire extinguishing is achieved.

When an earthquake occurs during combustion and the seismic pendulum 52 tilts, the disk 60 of the seismic pendulum 52 causes the vibration detection arm 53 to rotate as in the case of the manual fire extinguishing lever 61. Even when it occurs, the fire is extinguished instantly to ensure safety.

EFFECTS OF THE INVENTION As described above, according to the present invention, a wick impregnated with liquid fuel is provided to be movable up and down, the wick is raised to an ignition position at the start of combustion, and in this state, the upper end of the wick is ignited. In the case of burning by burning, a vibration detection arm that rotates in response to the occurrence of vibration, an operating shaft that rotates forward and backward to raise and lower the lamp core, and an interlocking lever that is rotatably provided on this operating shaft. , An ignition device that works with this interlocking lever,
An operation lever that normally rotates the operation shaft by a certain angle when the wick is raised in conjunction with the interlocking lever, and a vibration detection arm when the wick is raised to the ignition position by forward rotation in conjunction with the operation lever when the wick is raised. An engaging lever that engages and stops, and reverses when the wick descends to reverse the operating shaft by a certain angle, and an operating lever that is provided at one side edge of the locking lever and that abuts the operating lever when the wick is raised. A locking piece for rotating the locking lever, and by pushing down the interlocking lever integrally with the operation lever, the operation shaft is normally rotated to raise the wick to the ignition position. , An ignition mechanism interlocking with the interlocking lever ignites the wick, and the operating lever is brought into contact with a bent piece of the locking lever to rotate the locking lever to engage with the vibration detecting arm. By this engagement, the wick is held at the burning position, the wick is displaced up and down by the rotation of the operating lever, and the width of this displacement is brought into contact with the operating lever against the bent piece of the locking lever. Therefore, most of the mechanism for performing the raising operation of the wick and the mechanism for finely adjusting the wick up and down to adjust the combustion heat are shared. That is, when finely adjusting the wick up and down, the operation lever is operated up and down to rotate the operation shaft forward and reverse, but the operation lever and the operation shaft are dedicated for finely adjusting the wick up and down. It also serves as a member that constitutes a mechanism for raising the wick from the fire extinguishing position to the combustion position, and thus has the advantage that the structure is simple and inexpensive.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is an overall configuration diagram, FIG. 2 is a front view of a substrate, FIG. 3 is a plan view of a mechanism portion for interlocking a wick, and FIG. FIG. 5 is a perspective view of an interlocking body that interlocks the wick, and FIG. 6 is a front view showing a state of a mechanism portion for moving the wick up and down in a standby state for combustion.
FIG. 8 is a front view showing a state during combustion, FIG. 8 is a front sectional view of a mechanism portion for extinguishing a fire, FIG. 9 is a side sectional view of the same portion, and FIG. 10 is a state before ignition of a mechanism portion for igniting. Similarly, FIG. 11 is a side sectional view showing a state at the time of ignition, and FIG. 12 is a front view of a mechanism portion for interlocking the ignition lever. 5 ... wick, 15 ... operating shaft, 28 ... operating lever, 31 ... locking lever, 53 ... vibration detection arm.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-50-8545 (JP, A) JP-A-58-2512 (JP, A) JP-A-57-37612 (JP, A) JP-A-50- 118326 (JP, A) Actually open 51-52341 (JP, U)

Claims (1)

[Claims] 1. A wick that is impregnated with liquid fuel is provided so as to be movable up and down, and the wick is raised to an ignition position at the start of combustion,
In this state where the upper end of the wick is ignited and burned, a vibration detection arm that rotates in response to the occurrence of vibration, an operation shaft that rotates forward and backward to raise and lower the wick, and a rotation shaft that rotates around this operation shaft. An interlocking lever that is movably provided, an ignition device that interlocks with this interlocking lever, an operating lever that interlocks with the interlocking lever to rotate the operating shaft forward by a certain angle when the wick is raised, and the operating lever when the wick is raised. And a locking lever that engages with the vibration detection arm and stops when the lamp core moves up to the ignition position by rotating in the forward direction and reverses when the lamp core descends to reverse the operating shaft by a certain angle. A bending piece provided on a side edge of the lever for rotating the locking lever when the operating lever abuts when the wick rises, and pushes down the interlocking lever integrally with the operating lever. The forward rotation of the operating shaft to raise the wick to the ignition position, the ignition mechanism interlocked with the interlocking lever ignites the wick, and the operating lever is bent over the locking lever. To engage with the vibration detection arm by rotating the locking lever.
By this engagement, the wick is held at the combustion position, the wick is displaced up and down by the rotation of the operation lever, and the width of this displacement is brought into contact with the bent piece of the locking lever. A liquid fuel combustion device characterized by being regulated by