JPS6238082Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a combustion device such as a solid fuel stove.

[Technical background of the invention and its problems]

Conventionally, the firepower adjustment of solid combustion stoves was carried out by preparing several types of firepower adjustment rings with fixed opening areas, ranging from large to small, and selecting these as appropriate and placing them over the top opening of the combustion chamber. This extinguishment was done by covering the fire with a lid.

Another method was to cover part of the upper opening of the combustion chamber with a lid to adjust the firepower, and then cover the entire area to extinguish the fire.

However, according to the former method, the firepower adjustment is done in stages according to the opening area of the firepower adjustment ring, and cannot be adjusted steplessly.In addition, multiple firepower adjustment rings are required as separate parts to adjust the firepower. It was troublesome to have to replace it every time it was adjusted, and it was dangerous because there was a risk of getting burned during the replacement process.

In addition, according to the latter method, the lid used for extinguishing a fire covers part of the upper opening of the combustion chamber to adjust the firepower, which has the disadvantage that the fire tends to sway, especially when the flame is set to low.

[Purpose of invention]

The present invention is an attempt to improve the above-mentioned drawbacks, and it is possible to continuously perform stepless and continuous operation from maximum firepower to extinguishing fire, is easy to handle and adjust, and is safe without the risk of burns. Moreover, it is an object of the present invention to provide a combustion device which prevents the generation of flame fragments even when the flame is low.

[Summary of the idea]

The combustion device of the present invention includes an outer casing, a combustion case provided inside the outer casing and forming a combustion chamber, and a base end rotatably arranged on a shaft at a predetermined interval on the upper edge of the combustion case. a plurality of dampers mounted on the combustion case for opening and closing the upper surface of the combustion case; a control plate disposed on the outside of the combustion case and rotatably mounted near the shafts of the plurality of dampers; and a control plate for rotating each of the dampers. It is characterized by comprising a restraining body that suppresses the outer edge on the moving circumference, and an operating device that moves the control plate to rotate open and close each of the dampers. The two shaft-mounted parts of the damper are used as fulcrums and points of action to rotate open and close, and each damper is brought into close contact with each other to adjust the firepower or extinguish the fire steplessly, continuously, and reliably.

[Example of idea]

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Reference numeral 1 denotes a rectangular outer casing with an open upper surface, and a plurality of legs 2 are attached to the lower surface of this outer casing 1, and a plurality of ventilation holes 3 are bored in the bottom. Further, a top plate 4 is placed on the top surface of the outer casing 1, a circular opening 5 is formed in the center of the top plate 4, and a trivet supporting a pot bottom or the like is provided on the upper surface around the opening 5. 6 is provided.

A circular combustion case 11 that forms a combustion chamber with an open top surface is fixed to the center of the outer casing 1. The combustion case 11 is provided with a stepped portion 12 whose diameter increases outward from the middle portion, and an annular collar portion is provided on the outer periphery of the upper end. Note that a plurality of ventilation holes 14 are formed in the stepped portion 12 as necessary.

A circular fuel container 15 is placed inside the combustion case 11.
A notch 16 is provided on one side of the outer periphery of the opening of the fuel container 15, and a handle 17 is rotatably provided.

Reference numeral 21 denotes a plurality of dampers for adjusting firepower, which are approximately fan-shaped and have three dampers in this embodiment. It is rotatably mounted on a support shaft 22. And each damper 21
rotates about the first support shaft 22, and opens and closes the upper opening of the combustion case 11 with parts of the dampers 21 overlapping each other. The first support shaft 22 has a flat head and is formed by a suppressor 23, and the outer edge of the adjacent other damper 21, which is on the circumference when the damper 21 rotates, is the outer edge of the damper 21. The rotation of the dampers 21 is suppressed so as not to be obstructed, and when the dampers 21 are overlapped, a gap is not created in the overlapping part.

Reference numeral 31 denotes an annular control plate disposed on the outside of the flange 13 of the combustion case 11;
The outer end of each damper 21 and the first
A portion near the support shaft 22 is rotatably attached to a second support shaft 32, and an engagement piece 34 having an engagement hole 33 on one side of the outer edge of the control plate 31 is bent. has been done. As the control plate 31 rotates, each damper 21 rotates to open and close using the second support shaft 32 as a point of action and the first support shaft 22 as a support point.

Reference numeral 41 denotes an operating device, and this operating device 41 is rotatably supported by a support frame 42 erected at the bottom of one side of the outer casing 1, and its inner end is connected to the control plate 31. An operating shaft 43 whose outer end is directed toward the engaging piece 34 side and protrudes outside the outer casing 1; A control lever 44 inserted and engaged therein, a knob 45 provided at the outer end of the operating shaft 43, and an operating shaft 43 located in the middle of the operating shaft 43
The ignition cam 46 is provided to protrude perpendicularly to the ignition cam 46 and constitutes an electric circuit for fuel ignition, and the ignition cam 46 provided between the ignition cam 46 and the supporting frame 42 is activated by a biasing force. It is provided with a coil spring 47 that presses and urges the operating shaft 43 connected to the ignition cam 46 toward the outside of the outer casing 1.

Further, the ignition cam 4 is provided inside the support frame 42.
A contact plate 48 that functions as a switch by coming into contact with and separating from 6.
A battery 50 in a battery storage case 49 at the bottom of the outer casing 1 is connected to the contact plate 48 . Furthermore, a support 51 is provided on one side of the combustion case 11 to provide a notch 16 of the fuel container 15.
A discharge electrode 52 is provided facing the battery 50, and this discharge electrode 52 is connected to the battery 50 via a high voltage unit 53.
It is connected to the.

The electric circuit for fuel ignition is connected to battery 5.
One pole of 0 is the contact plate 48, the ignition cam 46, the operation shaft 43, the supporting frame 42, the outer casing 1, and the combustion case 11.
The other electrode of the battery 50 is led to the discharge electrode 52 via the high voltage unit 53, and when the ignition cam 46 and the contact plate 48 come into contact, a current flows. Sparks fly between the discharge electrode 52 and the notch 16 of the fuel container 15 due to discharge. It should be noted that the ignition cam 46 and the contact plate 48 are arranged with their positions shifted in the front-rear direction, and simply turning the knob 45 does not position the contact plate 48 on the trajectory drawn by the ignition cam 46. When the contact plate 48 is pushed in against the biasing force of the coil spring 47 and rotated, the contact plate 48 is positioned on the trajectory drawn by the ignition cam 46 and comes into contact with it.

Next, the operation will be explained.

When not in use, each damper 21 is in a closed state. In other words, the three fan-shaped dampers 21 overlap each other to form a so-called trilateral, and the combustion case 1
The top of 1 is closed.

When igniting the fuel, the operating device 41
Push the knob 45 against the biasing force of the coil spring 47 to rotate it. As a result, the control lever 44 rotates, horizontally rotates the control plate 31, and rotates each damper 21 with the first support shaft 22 as the fulcrum and the second support shaft 32 as the point of action. open. Then, when the knob 45 is turned to the maximum, the ignition cam 46 and the contact plate 48 come into contact, forming an ignition electric circuit and current flowing between the discharge electrode 52 and the notch 16 of the fuel container 15. During this time, sparks fly due to the discharge, and the solid fuel in the fuel container 15 is ignited.

At this time, the expanded state of each damper 21 is at the maximum position, so if you turn the knob 45 in the opposite direction to weaken the firepower, each damper 21 will open steplessly and continuously according to the rotation of the knob 45. You can change the opening area and adjust the firepower.

When extinguishing the fire, each damper 21 is closed by rotating the knob 45.

When adjusting the fire power and extinguishing in this manner, the outer edge of each damper 21, which is on the rotation circumference, is held down by the holding body 23, so that they are in close contact with each other without any gaps, preventing vaporized fuel gas from leaking from the overlapping parts of each damper 21.

Note that when adjusting the firepower, extinguishing the fire, or replenishing the fuel, there is no need to form an ignition air circuit, so there is no need to push the knob 45 against the biasing force of the coil spring 47. Further, replenishment of fuel is performed by rotating the knob 45 to open each damper 21 and taking out the fuel container 15. Then, when storing the fuel container 15 in the combustion case 11 again, the bottom of the combustion case 11 is shaped to fit the fuel container 15, so the positioning of the fuel container 15 can be easily performed.

In addition, during implementation, damper 2 for adjusting firepower
The number 1 is not limited to three, but may be two or more than four. Further, the operating device 41 does not have to be of a rotating type, and the operating shaft 43 is attached to the control plate 31 so as to correspond to the horizontal sliding of the control plate 31.
One end of the two may be connected and slid.

Further, instead of forming the suppressing body 23 using the first support shaft 22, the suppressing body 23 may be formed by bending the flange portion 13 of the combustion case onto the outer edge of each damper 21, as shown in FIG. well or control board 31
It may also be formed by bending a part of it in the same way.

[Effect of idea]

According to this invention, the damper for adjusting the firepower can be opened and closed steplessly and continuously from the closed state to the opening area corresponding to the opening of the combustion case, making it possible to finely adjust the firepower and extinguish the fire easily. be able to. Further, since no other parts are required for adjusting the firepower or extinguishing the fire, it is easy to handle, easy to operate, and there is no risk of burns, increasing safety. Moreover, since the opening of the damper always coincides with the center of the fuel container regardless of the size of the opening area, no sparks of fire occur.

In addition, since the suppressor suppresses the outer edge of the damper on its rotational circumference, the overlapping parts of each damper are tightly attached, preventing vaporized fuel gas from leaking from the overlapping parts, and making fire power adjustment and extinguishing more reliable. At the same time, deformation due to heat or external force can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a front view showing one embodiment of the device of the present invention, Fig. 2 is a partially cutaway top view, and Fig. 3 is a front view showing an embodiment of the device of the present invention.
The figure is its vertical front view, Figure 4 is its vertical side view,
FIG. 5 is a top view of the suppressor, FIG. 6 is a longitudinal sectional view thereof, and FIG. 7 is a longitudinal sectional view showing another embodiment of the suppressor. 1... Outer casing, 11... Combustion case, 21...
Damper, 23... Suppression body, 31... Control board, 4
1... Operating device.

Claims (1)

[Scope of utility model registration request] an outer casing; a combustion case provided within the outer casing to form a combustion chamber; a plurality of dampers that open and close; a control plate disposed on the outside of the combustion case and rotatably pivoted near the shaft attachment portions of the plurality of dampers; A combustion device comprising: a suppressor that suppresses an outer edge; and an operating device that rotates the dampers to open and close the dampers by moving the control plate.