JPH02290408A - Liquid fuel combustion device - Google Patents

Abstract

PURPOSE:To commonly use most of a mechanism to perform operation to rise a wick and a mechanism to finely vertically regulate the wick for regulation of a combustion thermal power and to simplify structure by providing a loose coupling means to intercouple a control lever and a lock lever so that the levers are allowed to loosely move only in the thermal power regulating range of the wick. CONSTITUTION:After ignition for a wick 5 is achieved, a control lever 28 and a lock lever 31 are rotated counterclockwisely along with rotational return of an interlocking lever 29, but, right after the rotation, a lock part 32 of the lock lever 31 is locked to a lock catch part 56 of a fire extinguishing mecha nism, and a rotation amount of the control lever 28 and the lock lever 31 is suppressed to a very low value. The moving range of a thermal power control plate 36 is limited to a specified width, and a most lowering position during combustion of the wick 5 is determined to a constantly proper specified position. When the thermal power control plate 36 is pressed down, the control lever 28 is rotated counterclockwisely freely without any limitation through a connecting lever 42 in linkage with a regulating lever 43.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a wick type liquid fuel combustion device used as a portable stove or the like.

[Technical background of the invention and its problems] This type of combustion device continues combustion through a wick; that is, a cylindrical wick braided with fibers is installed around the outer periphery of a wick guide tube so that it can rise and fall freely. The lower end of the wick is constantly immersed in liquid fuel. During combustion operation, the wick is raised so that its upper end faces the fire pan, that is, located in the combustible area, and at this position the upper end is ignited to continue combustion.

Furthermore, this type of combustion device is equipped with an anti-seismic automatic fire extinguishing mechanism that automatically lowers the wick to extinguish the fire when the entire device is subjected to vibrations exceeding a certain level due to an earthquake.

However, in the past, in connection with the anti-seismic automatic extinguishing mechanism, apart from the mechanism that directly raises the wick,
In order to adjust the combustion power, a mechanism was provided to finely adjust the wick up and down, making the structure complex and expensive.

[Purpose of the Invention] The present invention has been made with attention to these points, and most of the mechanism for raising the wick and the mechanism for finely adjusting the wick up and down to adjust the combustion power are It is an object of the present invention to provide a liquid fuel combustion device that is common and has a simple structure and is inexpensive.

[Summary of the Invention] In order to achieve the above object, the present invention provides a lamp wick impregnated with liquid fuel that can be raised and lowered freely, raises the lamp wick to the ignition position at the start of combustion, and in this state, the upper end of the lamp wick is raised to the ignition position. A device that ignites and burns a lamp has a vibration detection arm that rotates in response to vibrations, an operating shaft that rotates forward and backward to raise and lower the wick, and an operating shaft that rotates forward by a certain angle when the wick is raised. an operating lever that rotates forward in conjunction with the operating lever when the wick rises, engages and stops the vibration detection arm when the wick rises to the ignition position, and reverses when the wick descends to rotate the operating shaft at a certain angle. The locking lever is provided with a locking lever for rotating the lamp in the opposite direction, and a swing connecting means for connecting the operating lever and the locking lever so as to allow swinging only within the range of adjusting the firepower of the wick.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In the figure, 1 is a base, and a fixed tank 2 is provided on this base 1. From the inner bottom surface of one end of the fixed tank 2 to the core guide tube 3
protrudes, and the upper end of this core guide tube 3 faces upward through an opening 4 formed on the upper surface of the fixed tank 2.

A cylindrical lamp wick 5 made of noncombustible fiber is fitted into the outer periphery of the wick guide tube 3 so as to be movable up and down. A metal wick holder 6 is attached to the outer periphery of the lamp wick 5, and this wick holder 6 covers almost the outer periphery of the lower half of the lamp wick 5, and has a flange 7 on the upper edge. It is designed to move up and down together with the lead holder 6.

A burner basket 8 is removably provided on the upper surface of the fixed tank 2 and is arranged concentrically with the core guide tube 3 protruding from the opening 4 and covers the outer periphery thereof. The burner basket 8 has a bent piece 9 on its upper edge that is bent outward, and a fire pan 11 is constituted by this bent piece 9 and a plate 1o provided at the upper end of the core guide cylinder 3. There is. A combustion cylinder 12 is removably placed a on this fire pan 11. 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, and a constant level is always maintained in the fixed tank 2 from this cartridge tank. A liquid fuel such as kerosene is supplied to the lamp, and the lower end of the lamp wick 5 is constantly immersed in this fuel.

A board 14 is vertically provided on the front side of the fixed tank 2,
The operating shaft 1 extends from this board 14 to the inside of the fixed tank 2.
5 is rotatably inserted. And this operating shaft 15
An interlocking body 16 is fixed inside the fixed tank 2. This interlocking body 16 has a pair of arms 17 and 18 that are perpendicular to the operating shaft 15 and are opposed to each other.
．． 18 are arranged on both side surfaces of the lead holder 6. 1 each arm
Long attachment grooves 19, 20 are formed along the longitudinal direction of each of the distal ends of 7, 18. The mounting groove 19 of one arm 17 opens to the upper edge side of the arm 17 through an open path 21 formed with a notch on its distal end side, and the mounting groove 20 of the other arm 18 opens with an open path formed with a notch on its proximal end side. 22 and opens to the upper edge side of the arm 18.

That is, the open passages 21 and 22 are located on opposite sides. Shafts 23 and 24 are provided on both sides of the core holder 6, and these shafts 23 and 24 are connected to the mounting grooves 19 and 24, respectively.
It is playing to 0.

In addition, a suitable oil leak prevention means is provided at the portion where the operating shaft 15 penetrates the wall surface of the fixed tank 2.

A connecting tube 25 is fixed to one end of the operating shaft 15 protruding from the fixed tank 2 via a screw 26, and this connecting tube 25 is rotatably supported by the base plate 14 via a bearing 27.

An operating lever 28 and an interlocking lever 2 are located inside the board 14.
9, and one end of each of the operating lever 28 and the interlocking lever 29 is connected to the connecting cylinder 25. The operating lever 28 is fixed to the connecting tube 25 via tongues 30, 30 formed integrally with the connecting tube 25, 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 operating lever 28 and the interlocking lever 29. This locking lever 31 has a hook-shaped locking portion 32 on one end edge, and a bent piece 33 bent at right angles on the lower edge of the other end. It is elastically biased counterclockwise. Then, the bent piece 33 abuts against the lower edge of the operating lever 28, and due to this abutment, the operating lever 28 is also elastically biased counterclockwise by the spring 34 together with the locking lever 31. There is.

An ignition operation plate 35 and a thermal power operation plate 36 are provided on the front surface of the board 14 so as to be vertically movable. These operation plates 35, 36 each have knobs 37, 38 on the front and pins 39, 40 on the back. And ignition control panel 3
The pin 39 of No. 5 is loosely engaged with the elongated hole 41 at the other end of the interlocking lever 29 through the upper edge portion of the other end of the operating lever 28 . The bottle 40 of the thermal power operation plate 36 is inserted into a vertically long elongated hole 58 formed in the base plate 14, and the vertical movement range of the thermal power operation plate 36 is restricted to a certain range by the elongated hole 58. One end of a connecting lever 42 is rotatably attached to the tip of the pin 40, and one end of an adjustment lever 43 is rotatably attached to the other end of the connecting lever 42 via a pin 44. The adjustment lever 43 has a support pin 45 protruding from approximately the middle thereof, and an engagement groove 46 is formed in the longitudinal direction of the other end thereof. The support pin 45 is fitted into a horizontally elongated hole 47 formed in the substrate 14, and is elastically deflected toward one end of the elongated hole 47 by a spring 48 hooked to the substrate 14. energized. Further, an arc-shaped introduction portion 49 is formed at a portion connecting one side edge of the engagement groove 46 and the upper side edge of the adjustment lever 43. An engagement pin 50 that can be freely engaged and disengaged from the engagement groove 46 is protruded from the side surface of the other end of the operating lever 28 .

An anti-seismic automatic fire extinguishing mechanism is provided on the inner surface of one end of the substrate 14, and its frame 51 has a seismic pendulum 52 disposed on the upper surface of the frame 51. A vibration detection arm 53 bent into a substantially L-shape is rotatably provided on the lower surface side of the frame 51 via a pin 54 . This vibration detection arm 53 has a sensing portion 55 on one end side with the pin 54 as a boundary, and a locking portion 32 of the locking lever 31 and a locking receiving portion 56 that can be freely engaged and detached on the other end side. There is. It is always elastically biased counterclockwise in the figure via a spring 57. Through-holes 51a and 55a are formed in the upper surface of the frame 51 and the sensing portion 55, respectively, and the shaft 59 protruding from the seismic pendulum 52 is inserted into the through-holes 51a and 55a.
, 55a are loosely inserted, and a disk 60 is attached to the tip of this shaft 59. When the seismic pendulum 52 tilts due to the occurrence of an earthquake, the peripheral edge of the disc 60 comes into contact with the lower surface of the sensing section 55, and the vibration sensing arm 53 is rotated against the spring 57. Furthermore, a manual fire extinguishing lever 61 is rotatably provided on the frame 51, and the vibration detection arm 53 can be rotated through the manual fire extinguishing lever 61 independently of the operation of the vibration sensing pendulum 52. ing. Note that a knob 62 is provided at the tip of the manual fire extinguishing lever 61, and this knob 62 faces the front side of the board 14.

An ignition mechanism is provided on the outer surface of the burner basket 8,
63 is that frame. An ignition lever 64 is rotatably provided on the frame 63 via a lever 65, and an ignition heater 66 is attached to the tip of the ignition lever 64. The ignition lever 64 is elastically biased by a spring 67 in a direction away from the burner basket 8, that is, clockwise in the figure, and has a bracket 68 in the middle, and one end of a push-up lever 69 is attached to this bracket 68. It is rotatably attached via a shaft 70. A hooking portion 71 is formed at the other end of the push-up lever 69, and this hooking portion 7
1 is loosely engaged with the lower edge of the protection tube 72 disposed on the outermost periphery of the combustion tube 12. The frame 63 is equipped with dry batteries (
An electrode plate 73 is provided which is electrically connected to the ignition heater 6 (not shown), which faces the ignition lever 64 and comes into contact with the ignition lever 64 as the ignition lever 64 rotates.
6 is designed to be energized. A shaft 74 is provided at the end of the bracket 68, and a transmission lever 75 is attached to this shaft 74.
One end of the two is engaged. A support plate 76 is provided on the inner surface of the substrate 14, and the intermediate portion of the transmission lever 75 is rotatably supported on the support plate 76 via a pin 77. The other end of the transmission lever 75 and the intermediate portion of the interlocking lever 29 are connected by a connecting strip 78. Further, a spring 79 is stretched between the other end of the transmission lever 75 and the support plate 76.
These seven springs bias the interlocking lever 29 upwardly, that is, counterclockwise in the figure, via the connecting strip 78.

Next, the operation will be explained. In the combustion standby state,
The operating lever 28 and the interlocking lever 29 are each tilted upward with the connecting tube 25 as a fulcrum, and the lamp wick 5 is connected to the wick guide tube 3.
It is located at the lower end of the . From this state, the ignition operation plate 35
When the lever 29 is pressed down via the knob 37, the interlocking lever 29
rotates clockwise about the connecting cylinder 25 as a fulcrum against the force of the spring 79. At this time, the operation lever 28 is connected to the ignition operation plate 35.
is pushed down by a pin 39 provided on the back surface of the lever, and rotates integrally with the interlocking lever 29. With this rotation, the engagement pin 50 of the operating lever 28 first comes into contact with the introduction part 49 of the adjustment lever 43, and this contact pushes the adjustment lever 43 leftward against the spring 48, and this operation The engagement pin 50 passes through the introduction part 49, and after this passage, the adjustment lever 43 moves back to the right due to the biasing force of the subring 48, and the engagement pin 50 engages with the engagement groove 46. After this engagement, the engagement pin 50 further descends, and this descent causes the adjustment lever 43 to rotate clockwise about the support bin 45, and the firepower operation plate 36 is pushed up via the connecting lever 42.

As the operating lever 28 rotates, the operating shaft 15 also rotates together, and the wick 5 is pulled up together with the wick holder 6 via the interlocking body 16, so that the wick 5 projects into the fire pan 11. Operation lever 2
With 8 pushed down to the lowest position, the wick 5 is held in the highest ignition position. As the interlocking lever 29 rotates, the other end of the transmission lever 75 is pulled down via the connection strip 78, and the one end is raised. Due to this rise, the ignition lever 64 rotates about the shaft 65 against the spring 67, and with this rotation, the push-up lever 69 rises, and the combustion cylinder 12 is pushed up using its one end as a fulcrum. tilted,
The area around the wick 5 facing the ignition heater 66 is opened. As the ignition lever 64 rotates, the ignition lever 64 comes into contact with the electrode plate 73 and the ignition heater 66 is energized, and the ignition heater 66 comes into contact with the lamp wick 5 through the open portion. Ignition is achieved. When the operating lever 28 rotates, the locking lever 31 also rotates, and the hook-shaped locking portion 32 at one end of the locking lever 31 engages with the locking receiving portion 56 of the vibration detection arm 53 of the fire extinguishing mechanism. Make temporary contact and pass through.

After the lamp wick 5 is ignited, the operator releases the ignition operation plate 35, and this release causes the interlocking lever 29 to rotate counterclockwise due to the biasing force of the spring 79, returning to its original position. Return. In addition, in response to this, the ignition lever 64 and push-up lever 69 are returned to their initial positions by the biasing force of the spring 67, and the combustion tube 12 is pulled down and placed in the fire pan 11. As the interlocking lever 29 rotates back, the operating lever 28 and the locking lever 31 also release the spring 3.
Immediately after the rotation, the locking portion 32 of the locking lever 31 engages the locking receiver 56 of the fire extinguishing mechanism.
Therefore, the amount of rotation of the operating lever 28 and the locking lever 31 is suppressed to a very small amount.

In conjunction with the rotation, the lamp wick 5 is slightly lowered from the ignition position, and is set at the combustion position with high firepower. Therefore, if you leave it as it is, it will continue to burn with high firepower.

On the other hand, when setting the combustion thermal power to another medium or low thermal power, the user presses down the thermal power operation plate 36 to do so. That is, when the firepower operation plate 36 is pushed down via the knob 38, the operation is controlled by the adjustment lever 43 via the connecting lever 42.
The adjustment lever 43 rotates counterclockwise about the support pin 45 as a fulcrum. The adjustment lever 43 is connected to the engagement groove 4
6 and the engagement pin 50, the control lever 28 is connected to the control lever 28, so that the control lever 28 rotates counterclockwise in conjunction with the adjustment lever 43. The clockwise movement of the operating lever 28 is regulated by the bent piece 33 of the locking lever 31, but the counterclockwise movement is not regulated at all. Therefore, this operating lever 28 is an adjustment lever. 43 and rotates freely. This rotation causes the wick 5 to be lowered from the high power combustion position to the medium or low power combustion position depending on the amount of depression of the fire power control plate 36, thereby continuing the combustion state at the set fire power.

In addition, when the combustion state is to be set to high heat power again, the fire power operation plate 36 is pushed up.

The movement range of the firepower control plate 36 is restricted to a certain width by the elongated hole 58, so that the lowermost position of the lamp wick 5 during combustion is always determined to be an appropriate fixed position, and further lowering is prevented. Therefore, there is no occurrence of incomplete combustion due to lowering the wick 5 too much, and proper combustion can always be obtained. In this embodiment, the height of the lamp wick 5 protruding from the fire pan 11 is 8 mm at high fire power and 3 cm at low fire power, and the lamp wick 5 moves up and down within the range of 5 mm of the difference to adjust the fire power. is planned. In this way, the lamp wick 5 moves in a small width of 5III1, but the movement relationship between the lamp wick 5 and the firepower control plate 36 that interlocks it is that they are connected to each other by the operation lever 28, the adjustment lever 43, and the connecting lever. Since they are connected by the lever 42, the movement of the thermal power control plate 36 increases with the movement of the lamp wick 5, so that the lamp wick 5 can be easily moved step by step. In this embodiment, the movement range of the firepower control panel 36 is increased by 6 times to 30%.
It's set to .

In conventional devices of this type, the wick is moved up and down by rotating a dial, but with this type of dial, if you want to move the wick up and down significantly, you have to squeeze the dial several times. It is often necessary to rotate the dial while making adjustments, which makes the operation cumbersome and time-consuming. However, in this example,
Since the lamp wick 5 is moved up and down by the up and down operation of the fire power operation board 36, there is an advantage that the operation can be easily and efficiently performed in one operation.

When the lamp wick 5 is ignited, the lamp wick 5 is raised from the combustion position of high heat to a position above the combustion position, but this action causes the locking part 32 to be placed in the position of the locking receiving part 56 once. It is intended to ensure that the locking portion 35 is locked to the locking receiving portion 56 when the lamp wick 5 is pulled down from the ignition position to the high-power combustion position. It is. In other words, if the ignition timing and the locking timing are the same, ignition was achieved due to assembly variations, but the locking between the locking part 35 and the locking receiver 56 was not achieved, and the ignition operation When the plate 35 is released from being pressed down, there is a risk that the wick 5 will move out of the combustible area and return to its original position below. To prevent this, the timing of ignition and the timing of locking should be adjusted. It is shifted.

Next, extinguishing will be explained. Normal fire extinguishing is performed by pushing down the knob 62 of the manual fire extinguishing lever 61. Pick 62
When pressed down, the manual fire extinguishing lever 61 rotates, and the vibration detection arm 53 is rotated clockwise against the spring 57 with the bottle 54 as a fulcrum. This rotation locking receiving part 5
6 is released from the locking portion 32 of the locking lever 31, and due to this separation, the locking lever 31 is rotated counterclockwise by the elastic force of the spring 34. At this time, the bent piece 3 of the locking lever 31
3 abuts against the lower edge of the operating lever 28, so that the operating lever 28 also rotates counterclockwise together with the locking lever 31. The engagement pin 50 of the operation lever 28 is connected to the adjustment lever 4
Although the operating lever 28 is engaged with the engagement groove 46 of No. 3,
It separates from the engagement groove 46 with the rotational force of. By rotating the operating lever 28 in the counterclockwise direction, the lamp wick 5 is pulled down at once and greatly via the interlocking body 16, thereby achieving instantaneous extinguishment.

If an earthquake occurs during combustion and the seismic pendulum 52 tilts,
The disk 60 of the seismic pendulum 52 rotates the vibration detection arm 53 in the same way as the manual fire extinguishing lever 61, so that even in the event of such an earthquake, instant fire extinguishment is carried out and safety is ensured.

[Effects of the Invention] As explained above, according to the present invention, a lamp wick impregnated with liquid fuel is provided so as to be movable up and down, the lamp is raised to the ignition position at the start of combustion, and in this state, the upper end of the lamp is ignited. 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 wick, and an operation that rotates the operating shaft forward by a certain angle when the wick is raised. A lever rotates forward in conjunction with the operating lever when the wick rises, engages the vibration detection arm and stops when the wick rises to the ignition position, and reverses when the wick descends to rotate the operating shaft by a certain angle. The lamp is equipped with a locking lever that allows the lamp to move upwardly, and a locking lever that connects the operating lever and the locking lever so as to allow the lamp to move only within the range of firepower adjustment of the lamp wick. Most of the mechanism for performing this operation and the mechanism for finely adjusting the wick up and down to adjust the combustion power are common, making it possible to provide a liquid combustion device with a simple structure and low cost.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is an overall configuration diagram, Fig. 2 is a front view of the board, Fig. 3 is a plan view of the mechanism that interlocks the lamp wick, and Fig. 4 is a side view of the same. Figure 5 is a perspective view of the interlocking body that interlocks the lamp wick, Figure 6 is a front view showing the state of the mechanism part that moves the lamp wick up and down during combustion standby, and Figure 7 is a front view showing the state during combustion. , Fig. 8 is a front sectional view of the mechanism part that extinguishes the fire, Fig. 9 is a side sectional view thereof, Fig. 10 is a side sectional view showing the state of the ignition part before ignition, and Fig. 11 is the ignition part. FIG. 12 is a front view of the mechanism that interlocks the ignition lever. 5... Lamp wick, ] 5... Operating shaft, 28... Operating lever 31... Locking lever 53... Vibration detection arm. Applicant's agent: Takehiko Suzue, patent attorney. ．． ” Figure 4 Figure 5 Figure 6 Figure 7 Figure 10 Figure 8 Figure 9 Figure 111]

Claims (1)

[Claims] A lamp wick impregnated with liquid fuel is provided that can be raised and lowered freely, and the wick is raised to the ignition position at the start of combustion, and in this state, the upper end of the wick is ignited and burned. an operating shaft that rotates forward and backward to raise and lower the wick; an operating lever that rotates the operating shaft forward by a certain angle when the wick is raised; and an operating lever that rotates forward in conjunction with the operating lever when the wick is raised a locking lever that engages and stops the vibration detection arm when the lamp is raised to the ignition position, and reverses when the lamp wick is lowered to reverse the operating shaft by a certain angle; A liquid fuel combustion device characterized by comprising: a floating connection means that connects the fuel to allow free movement only within a range of adjusting firepower.