JPS6238083Y2 - - 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. The fire was extinguished 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 replaced, and it was dangerous because there was a risk of getting burned during the replacement work.

In addition, according to the latter method, the firepower is adjusted by covering a part of the upper opening of the combustion chamber with a lid used for extinguishing a fire, 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 that does not cause any sparks to form 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 attached to the upper edge of the combustion case at a predetermined interval. a plurality of dampers for opening and closing the upper surface of the combustion case; a control plate disposed on the outside of the combustion case and rotatably pivoted near the respective shafts of the plurality of dampers; and a control plate for moving the control plate. and an operating device for rotating and opening and closing each of the dampers, the rotation angle of one of the dampers being larger than the rotation angle of the other dampers, and the control plate is moved by operating the operating device. and set the two shaft attachment parts of each damper as fulcrums and
It rotates to open and close as a point of action, and adjusts the firepower or extinguishes the fire steplessly and continuously.The damper, which has a large rotation angle, covers the gap between the dampers to ensure extinguishment.

[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 may be provided 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, three in this embodiment, for adjusting the firepower, each having a substantially fan-shaped plate shape. It is rotatably attached to one support shaft 22. Each damper 21 rotates about the first support shaft 22 to open and close the upper opening of the combustion case 11 with a portion of each damper 21 overlapping each other. At this time, one of the dampers 21 is stacked on top of the other dampers 21, and
The rotation angle A around the first support shaft 22 is set to be larger than the rotation angle B of the other dampers 21 . The first support shaft 22 has a flat head to form a suppressor 23, and is located at the outer edge of another adjacent damper 21.
When 1 rotates, the outer edge that is on the circumference is damper 2
The rotation of the dampers 21 is suppressed so as not to be hindered, and when the dampers 21 are overlapped, a gap is prevented from being formed 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. Furthermore, the distance between the first support shaft 22 and the second support shaft 32, on which the damper 21 which is stacked on top of each other among the dampers 21 is mounted, is equal to The spacing between the support shaft 22 and the second support shaft 32 is set narrower, and therefore the rotation angle A of the damper 21 stacked on top is larger than the rotation angle B of the other dampers 21. ing.

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. Note 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 supplying power, which connects 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. The opening area of each damper 21 can be changed, and the firepower can be adjusted. If each damper 21 is rotated to make the opening area zero, the opening of the combustion case 11 is closed and the fire is extinguished.

In such fire power adjustment and extinguishing, the rotation angle of the damper 21 stacked on top of each other so as to be the top of each damper 21 is larger than the rotation angle of the other dampers 21, so when each damper 21 is closed, the top The damper 21 is located at the center of the upper surface of the combustion case 11 to cover the gaps created between the other dampers to ensure fire extinguishment.

Furthermore, since the outer edges of each damper 21 on the rotational circumference are suppressed by the suppressing body 23, they come into close contact with each other without any gaps, thereby preventing vaporized fuel gas from leaking from the overlapping portion of each damper 21. At the same time, each damper 21 is prevented from coming apart and being deformed.

Note that when adjusting the firepower, extinguishing the fire, or replenishing the fuel, there is no need to form an ignition electric circuit, so there is no need to push the knob 45 against the biasing force of the coil spring 47. Also, to refill the fuel, use knob 4.
5 to open each damper 21 and take 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, in implementation, the number of dampers 21 for adjusting thermal power 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 4 is attached to the control plate 31 so as to correspond to the horizontal sliding of the control plate 31.
3 may be connected at one end, and this may be slid laterally.

Further, the damper 21 whose rotation angle is larger than that of the other dampers 21 does not necessarily need to be stacked on top of each other, but may be stacked on top of each other so as to be on the bottom.

[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. Furthermore, 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.

Furthermore, since the rotation angle of one of the dampers is larger than the rotation angle of the other dampers, when the combustion case is closed, it is located at the center of the upper surface of the combustion case and covers the combustion case, creating a gap between the overlapping parts of the other dampers. completely covers the top opening of the combustion case to ensure fire extinguishment and improve safety.

[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 damper with a large rotation angle, and FIG. 6 is a longitudinal sectional view thereof. 1... Outer casing, 11... Combustion case, 21...
Damper, 31... control board, 41... 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, and a control plate that is moved to control each of the dampers. A combustion device comprising an operating device that rotates to open and close, the rotation angle of one of the dampers being larger than the rotation angle of the other dampers.