JPH0143211B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Technical Field> The present invention relates to an ignition device for a liquid fuel combustor such as a top-and-bottom kerosene stove.

<Prior Art> As a conventional ignition device for a wick type oil stove, there is one in which an ignition device main body having an ignition heater made of platinum Hirament on the upper part is fixed to an upper flange of a wick outer cylinder. However, in this case, it is difficult to adjust the gap between the ignition heater and the wick to an optimal value, and since the ignition heater of the ignition device is fixed, the wick may become old or thin due to tar adhesion, etc. In some cases, the gap between the wick and the ignition heater became so large that ignition was impossible.

<Prior application technology> Therefore, the applicant of the present application has already applied for an ignition device that can adjust the gap between the wick and the ignition heater with an extremely simple and easy operation, and can maintain and guarantee the ignition performance (Japanese Patent Application No. 1983- No. 125593).

That is, the ignition device main body having the ignition heater on the upper part is passed through a mounting hole formed in the upper part of the wick outer cylinder and fixed to the support case, and the support case adjusts the gap between the ignition heater and the wick. We proposed something that was supported in a movable manner.

However, this has the disadvantage that when combustion flames blow out from the lower part of the burner cylinder due to strong winds, the flames flow into the lower side of the flame shielding plate and damage the electrical wiring.

<Purpose> Therefore, the present invention makes it possible to adjust the gap between the wick and the ignition heater with an extremely simple and easy operation, maintain and guarantee the ignition performance, and also prevent the combustion flame from blowing out from the bottom of the burner cylinder due to strong winds. The purpose of the present invention is to provide an ignition device in which the flame does not flow into the underside of a flame shield plate and damage electrical wiring, etc.

<Example> Hereinafter, a first example of the present invention will be described based on the drawings. In this case, a heat-resistant insulating material (for example, ceramics) is used. The ignition device main body 3 is passed through a mounting hole 6 formed in the upper flange 5 of the core outer cylinder 4 and fixed to a support case B, and the support case B is connected to the ignition heater 1 and the wick C.
It is movably supported to adjust the gap D between the two.

An engagement piece 7 formed at the rear center upper part of the support case B, which corresponds to the rear (closer to the core) center of the main body 3, engages with the core outer cylinder 4 so as to be able to swing around the horizontal axis. An adjustment threaded rod 8 is provided for adjusting and swinging the main body 3 and the support case B around the horizontal axis.

Next, the structure of the main body part of the ignition device is
To explain the figure, the ignition device includes a main body 3 made of a heat-resistant insulating material made of ceramics, an ignition heater 1 made of platinum filament arranged in the upper recess of the main body 3, and an ignition heater 1 whose upper end is connected to the ignition heater 1. A support device A that includes a pair of electrodes 2 penetrated through the electrode holes 3c, an elastic connection piece 2a whose lower end portion of the electrodes 2 is bent to prevent the electrodes from coming out after the penetration, and the support case B.
and wind and flame shielding means. The main body 3 of this ignition device is connected to the upper flange 5 of the core outer cylinder 4.
It is inserted from above into the fan-shaped mounting hole 6 in plan view.

Next, according to FIGS. 1, 5, 6, and 7, the support device A
To explain this, this consists of a socket base 9 which is fixed to the substantially central part of the side wall of the outer core cylinder 4 by rivets or welding, and a clip-type nut 9a fitted to the upper plate part of the base 9, and an upper end surface 10a. The adjustment threaded rod 8 is
the support case B being adjustably mounted;
Mica insulation material 1 charged to the bottom of the case B
2a, a pair of socket tabs 13 whose rear parts are inserted into case B, and a ceramic socket insulator 12b that fixes these tabs 13 to case B.
and the engaging piece 7 formed on the rear wall B1 of the case B and engaged in the mounting hole 6 so as to be able to swing around the horizontal axis, as shown in FIGS. The lower part of the main body 3 is press-fitted and fixed between B1 and the rear end 13a of the tab 13 by elastic deformation of the connecting piece 2a of the electrode 2, whereby the electrode 2 and the tab 13 are electrically connected.

Note that a lead wire with a faston is connected to the front end 13b of the tab 13, so that the ignition heater 1
is connected with the ignition switch and dry battery.

Furthermore, as shown in FIG. 5, the engaging piece 7 of the case B is formed with a retaining part 7a that is larger than the left and right width of the mounting hole 6. inserted. Furthermore, as shown in FIG. 7, the side stepped portion 12 of the insulator 12b
In e, the side wall claw B2 of the case B is bent after the insulator 12b is fitted, so that the insulator 12b is prevented from coming off. Reference numerals 12c, 12d, and B3 are holes for adjustment screw rods in the socket insulator 12b, insulating material 12a, and case B, respectively.

In addition, in the figure, 14 is a core inner cylinder that guides the inside of the core C, 15 is a core top that closes the upper part of the core inner cylinder 14, and 16 is a core inner cylinder that guides the inside of the core C.
is a burner cylinder, which includes an inner flame cylinder 16a placed on the outer periphery of the core top 15, and an upper flange 5 of the core outer cylinder 4.
It consists of an outer flame tube 16b placed on the outer flame tube 16b and its cover tube (not shown).

Furthermore, in the present invention, the burner cylinder 1
In order to prevent the flame from flowing into the lower side of the flame shielding plate P and damaging the electrical wiring when the combustion flame blows out from the lower part of the support case B, a windproof flame shielding means is provided. Flame-blocking covers 17a and 17b are integrally provided on the support case B to cover the gap Q between B4 and the opening edge P1 of the flame-blocking plate P.

The pair of left and right flame blocking covers 17b have upper extending portions of the left and right walls of the support case B bent, and the front flame blocking cover 17b has an upper extending portion of the front wall of the supporting case B. is formed by bending,
This flame shielding cover 17a protrudes to the front and left and right sides.

Note that the flame shielding cover does not necessarily need to be provided on the support case B side; for example, the flame shielding cover 17c may be attached to the flame shielding plate P with screws as shown by the imaginary line in FIG.

Next, the method of adjusting the ignition heater 1 will be explained with reference to FIG. 1. To widen the gap D between the wick C in the raised state and the ignition heater 1, turn the adjusting threaded rod 8 in the tightening direction and tighten the head 8a. The lower surface presses the upper surface of the socket insulator 12b against the compression spring 10. Then, the case B and the main body 3 of the ignition device are integrally connected to the engagement piece 7 and the mounting hole 6 of the core outer cylinder 4.
The gap D swings away from the core C around the horizontal axis formed by the point of contact with the periphery of the core C, and the gap D widens. Conversely, when the gap D is to be reduced, the adjustment threaded rod 8 can be turned in the loosening direction. Then case B
The main body 3 of the ignition device is integrally pushed up by the compression spring 10 and swings toward the core C side, and the gap D is shortened. Note that the adjustment screw rod 8 does not turn unexpectedly during use due to the action of the compression spring 10.

Furthermore, even if the gap Q between the outer periphery B4 of the support case B and the flame shield plate P increases due to the above adjustment,
Since the gap Q is covered by the flame-blocking covers 17a and 17b, even if flames blow out during strong winds, they hardly ever flow into the gap Q.

It should be noted that the present invention is not limited to the configuration of the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

<Effects> As is clear from the above description, the present invention has an igniter main body having an ignition heater in the upper part, which is penetrated through a mounting hole formed in the upper part of a core outer cylinder and fixed to a support case. The support case is movably supported to adjust the gap between the ignition heater and the wick, and a flame-blocking cover that covers the gap between the outer periphery of the support case and the opening edge of the flame-blocking plate is attached to the support case or the flame-blocking plate. The present invention relates to an ignition device for a liquid fuel combustor, characterized in that it is provided on a plate.

Therefore, according to the present invention, it is possible to maintain and guarantee ignition performance by adjusting the gap between the wick and the ignition heater, and even if the combustion flame blows out from the bottom of the burner cylinder due to strong winds, the flame will not be destroyed. It has the excellent effect of not flowing into the underside of the flame shielding plate and damaging electrical wiring, etc.

[Brief explanation of drawings]

Fig. 1 is an overall longitudinal sectional view showing a first embodiment of the ignition device of the present invention, Fig. 2 is a plan view of the main body of the ignition device, Fig. 3 is a longitudinal sectional front view thereof, and Fig. 4 is a longitudinal sectional side view thereof. 5 is a cross-sectional plan view of the support device portion of the ignition device, FIG. 6 is a longitudinal sectional front view thereof, and FIG. 7 is a central longitudinal sectional view thereof. A: Support device, B: Support case, C: Core, D:
Gap, P: Flame shielding plate, P1: Opening edge, Q: Gap, 1: Ignition heater, 2: Electrode, 3: Ignition device body, 4: Core outer cylinder, 5: Upper flange, 6: Mounting hole,
7: Engagement piece, 8: Adjustment threaded rod, 9: Socket base, 9a: Nut, 10: Compression spring, 12b: Socket insulator, 13: Socket tab, 17a, 1
7b: Flameproof cover.

Claims (1)

[Claims] 1 The ignition device body has an ignition heater on the top,
It is passed through a mounting hole formed in the upper part of the core outer cylinder and fixed to a support case, and the support case is movably supported to adjust the gap between the ignition heater and the core, and the outer periphery of the support case An ignition device for a liquid fuel combustor, characterized in that a flame-blocking cover is provided on the support case or the flame-blocking plate to cover a gap between the opening edge of the flame-blocking plate and the opening edge of the flame-blocking plate.