JPH0113258Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field This invention relates to an ignition device for a pipe burner used in various gas appliances.

Prior Art In an automatic ignition system that ignites by discharging from an ignition electrode to a flame nozzle to be ignited, the positional relationship between the ignition discharge terminal of the ignition electrode and the flame nozzle to be ignited is important as it greatly affects the ignition performance.

Conventionally, as known from, for example, Japanese Utility Model Publication No. 56-20700, it is already known to position and hold an ignition electrode on an electrode holding member by utilizing the peripheral surface shape of its insulator part. However, when you want to have the ignition discharge terminal bent and facing the flame hole to be ignited to gain flexibility in the position of the ignition electrode on the pipe burner, or when you want to have the electrode holding member that positions and holds the ignition electrode on the pipe burner. If the usage conditions and installation conditions of the ignition electrode are different, such as when you want to easily install it by screwing it, new positioning such as orientation around the axis of the ignition electrode or positioning of the electrode holding member relative to the pipe burner will not be possible. In this case, the tip of the ignition discharge terminal and the flame hole to be ignited do not face each other correctly, and although the electrode-to-electrode facing structure for ignition and the electrode holding member mounting structure are simplified, positioning during installation is difficult, and assembly work is required. It gets bulky and tends to cause automatic ignition failure.

Purpose This invention follows the above-mentioned known positioning structure, limits the bending direction of the ignition discharge terminal with respect to the ignition electrode insulator part, and improves the mounting structure of the electrode holding member, thereby solving the above-mentioned problems. An object of the present invention is to provide an ignition device for a pipe burner that can solve the problem.

Therefore, in this invention, the ignition electrode is held in a fixed position and orientation on one end piece of the electrode holding plate formed in a U-shape, and the inner corner of the hook-shaped mounting part that does not hold the ignition electrode is Apply it to the outer circumference of the pipe burner, fix the applied part with a screw at one place, and make the tip of the ignition discharge terminal of the ignition electrode face the flame hole to be ignited of the pipe burner to form the ignition part, and attach the hook-shaped mounting part. The tip itself forms an ignition part cover that covers the upper part of the ignition part.

Function The electrode holding plate that holds the ignition electrode is U-shaped, and the inner corner of the hook-shaped mounting part that does not hold the ignition electrode can be hung on the pipe burner. It's easy to do. The position can be adjusted by rotating the electrode holding plate around the pipe burner in the latched state, making it easy to set the appropriate position.

The ignition part cover is formed from the electrode holding plate itself, and can cover the upper part of the ignition part without any special parts or installation work, and prevents boiling liquid from falling on the ignition part or wind hitting the ignition part, making the structure complicated. This can be prevented without causing damage.

Embodiment To explain the embodiment shown in the figure, a flat rectangular container body 1 is a case made of a metal plate, with one end in the longitudinal direction of the interior serving as a gas cylinder installation chamber 2, and the other portion serving as a burner installation chamber 3. be. In the gas cylinder mounting chamber 2, there is a gas supply tool 6 in which a gas pressure regulator 4 and an instrument pot 5 are connected in series, and a gas cylinder loaded in the chamber 2 (Fig. (not shown) is provided. 8 is mechanism 7
Use the operating lever to connect the gas cylinder to the connection port 6a.
Connect to and disconnect from it. A pipe burner 9 made of a metal pipe is installed in the burner chamber 3, and gas is introduced from an open end 9a by a gas supply device 6.

Legs 10 are fastened with screws 11 to the bottom surface of the vessel body 1. A soup outlet 1 is provided at the bottom of the burner installation chamber 3 of the vessel body 1.
2 is opened, and on a pair of left and right guide rails 13 formed by extending the edges of both sides below the vessel body 1,
A water tray 14, which can be positioned in the space formed by the legs 10 below the vessel 1, is held removably. water dish 1
A handle 14a is integrally formed on the front part of the mouth edge of 4. A grill grate 16, which is a cast product, is detachably attached to the stepped opening edge 15 of the chamber 3. A heat shield plate 17 is provided between the gas cylinder installation chamber 2 and the burner installation chamber 3 in an area excluding the connection portion between the burner 9 and the gas supply tool 6. The heat shield plate 17 is integrally formed with the container top plate 18 that forms the chamber 3 side end wall 1a of the container 1 and the top plate 1b of the chamber 3, and the front wall 1c and rear wall 1d of the container 1 are , are integrally formed on the lower plate 19 forming the bottom of the chambers 2 and 3. A lid 21 having a hook-shaped cross section is provided in the opening 20 of the gas cylinder mounting chamber 2 extending from the upper surface of the container body 1 to the end on the side of the chamber 2 so that the lid 21 can be opened and closed at its lower edge.
Reference numeral 23 designates an operating knob for the instrument handle 5.

The burner 9 has a portion facing the gas cylinder mounting chamber 2 as an air mixing portion 9b on the side of the open end 9a, and a flame port 24 is continuously disposed on the inner periphery of the portion 9d on the side of the other closed end 9c. The air mixing part 9b lies in a substantially straight state at the boundary between the chambers 2 and 3 of the vessel body 1, and the other portion 9d lies along the other three peripheral walls 1a and 1c of the burner installation chamber 3 excluding the boundary with the chamber 2. , 1d, and is formed into a rectangular ring shape in which an opening 9a and a closed end 9c are close to each other when viewed from above. The planar annular shape of the burner 9 may be varied depending on the designed planar shape of the adjustment section.

The rectangular annular burner 9 has a fitting 25 welded to it, and the fitting 25 is fixed at an appropriate height to a support 26 attached to a lower plate 19 with screws 27. The grill 16 is attached to the opening edge 15 of the burner installation chamber 3 via a burner protection juice receiving frame 28. The juice receiving frame 28 is received with a flange portion 28a positioned so as to be removably attached to the mouth rim 15 by utilizing its step shape, and a cover peripheral wall 28b is attached to an inner edge extending inward from the inner circumference of the rectangular annular burner 9. is installed vertically to prevent oil and juices splashed from cooking from reaching the burner 9. The grill 16 is removably received and positioned on the stepped portion 28c of the flange portion 28a. Reference numeral 29 denotes an auxiliary heat shield plate between the chambers 2 and 3, which is installed in an area where the heat shield plate 17 is not provided.

An ignition electrode 30 is provided at one end of the flame hole of the burner 9, that is, the end of the flame hole on the side of the air mixing section 9b, and an ignition discharge terminal 30a faces the ignited flame hole 24' at the end of the flame hole. I'm forced to. Operation knob 23
When the automatic ignition piezoelectric device 31 is operated in conjunction with the opening operation of the pot, the device pot 5 opens and gas is supplied to the burner 9, and in synchronization with this, a discharge is caused from the ignition discharge terminal 30a to the flame hole 24' to be ignited. As a result, the raw gas that is about to be ejected from the burner 9 for the first time through this flame hole 24 is ignited. Next, the raw gas sequentially spewed out from the flame holes 24 following the flame hole 24' is reliably transferred from the flame caused by the first ignition to the flame hole 24'' at the other end of the flame hole 24''. is ignited.3
2 is an electrode holding plate.

The air mixing section 9b sucks outside air through the intake port 9f at the open end 9a and mixes it with the supplied gas. Since it can be made long, sufficient mixing of air and gas can be achieved.

The annular burner 9 has flame holes 24 and 2 at the boundary between the chambers 2 and 3, that is, the portion facing the gas cylinder mounting chamber 2.
4′, 24″ is used as the air mixing part 9b,
Combustion of gas does not occur, and combustion occurs only in the other portion 9d. As a result, the temperature at the end of the cooking section where the grill 16 is provided on the side of the chamber 2 does not rise much, which suppresses the thermal influence on the gas cylinder installed in the chamber 2, and prevents the cylinder from overheating and the risk of explosion. However, the end of the grill 16 on the side of the chamber 2 is useful as a heat-retaining part to properly warm the cooked food without burning it any further, and the other parts of the grill 16 are used as burners. By heating from three sides in step 9, grilled food can be cooked with sufficient heat.

The ignition electrode 30 has an ignition discharge terminal 30a from one end of the insulator part 30b, and a power supply connection terminal 30c from the other end.
protrude respectively, both ends of the insulator portion 30b are made into prismatic portions 30b ₁ , and the space between each prismatic portion 30b ₁ is made into a small diameter cylindrical portion 30b ₂ . 30b ₃ is a stepped portion formed between the cylindrical portion 30b ₂ and the prismatic portions 30b ₁ on both sides thereof.

On the other hand, the electrode holding plate 32 is made of a metal plate, and includes an electrode holding part 32a and a mounting part 32 to the pipe burner 9.
b. Ignition part cover 32c that covers the ignition part from above
are press-molded to form a continuous U-shape when viewed from the side. Reinforcing ribs 32d inwardly recessed in the shape of a V-shaped groove are press-molded on the left and right sides of the continuous bent portions of each portion 32a, 32b, and 32c. burner 9
The electrode holding part 32a attached to the lower side has a downwardly facing first electrode holding piece 32e bent and formed at its tip, a downwardly facing second electrode holding piece 32f formed by punching at its base, and the first, Each second electrode holding piece 32e,
Positioning square groove 3 on the same axis in the center of the lower end of 32f
3 is notched.

The ignition electrode 30 is positioned around the axis by fitting its insulator prismatic portion 30b ₁ into the square groove 33. For this positioning, the positioned corner of the prismatic portion 30b ₁ is fitted into the square groove 33. 30
b ₁ ′ is predetermined as one. Ignition discharge terminal 30
a is bent so as to face the same side as the determined corner portion 30b ₁ ' to be positioned. As a result, with the protruding side of the ignition discharge terminal 30a of the ignition electrode 30 facing toward the tip side of the electrode holding portion 32a, each positioned corner portion 30b ₁ ' is fitted into each positioning square groove 33, and the ignition discharge terminal 30a is Burner 9 flame hole 2
Make it face the front part, which is the 4' forming side.

The ignition electrode 30 whose positioning corner portion 30b ₁ ' is fitted into the square groove 33 is positioned with respect to the electrode holding plate 32 around its axis. Ignition electrode 3
The electrode presser 34 fits into the insulator columnar part _30b2 of No. 0 so as to cover that part and comes into contact with the stepped part _30b3 between the square columnar part _30b1 , and its tip engagement piece 34a is formed into the electrode holding part 32a. The other end 34b is screwed into the electrode holding part 32a through the elongated hole 36, and the ignition electrode 30 is positioned in the axial direction. It is fixed to the holding part 32a. As a result, the ignition electrode 30, together with the tip of the ignition/discharge terminal 30a, is brought into a specific positional relationship with respect to the electrode holding plate 32, and the positioned corner 30b ₁ ' facing the same side as the ignition/discharge terminal 30a is set at the positioning angle. It is only necessary to fit it into the groove 33 and install it.

The electrode holding plate 32 has a U-shape, and the ignition electrode 30
The inner corner of the hook-shaped mounting part 32 that does not hold the pipe burner 9 is hooked to the pipe burner 9,
The mounting portion 32b is attached to the back of the burner 9 with its inner surface in contact with two locations on the outer circumference of the pipe burner 9.
is attached to the burner 9 by screwing 39 into a mounting hole 38, which also serves as a positioning part, on the back and is bored to face the ignited flame hole 24' of the burner 9. The mounting hole 38 can be easily and reliably aligned by drilling the same drilling tool (not shown) with the flame hole 24' to be ignited through the burner 9, for example, on a diametrical line, and then attaching a screw thereto. Stop 39
The electrode holding plate 32 to be ignited is positioned in a specific positional relationship with respect to the flame hole to be ignited 24', and the tip of the ignition discharge terminal 30a of the ignition electrode 30 positioned with respect to the electrode holding plate 32 is moved to the flame hole to be ignited 24'. Appropriately confront the person.

The ignition part cover 32c has peripheral walls 32 on three sides of the tip.
c ₁ , and attach it to the mounting part 3 while it is placed on the burner 9.
The mounting holes 40 for fixing screws 2b are made to match the heights of the mounting holes 38 of the burner 9. As a result, if the electrode holding plate 32 is moved in the axial direction of the burner 9 with the ignition part cover 32c mounted on the burner 9, the mounting holes 38 and 40 will match, and in this case, the ignition discharge terminal 30a The mounting holes 38 and 40 can be aligned more easily by using the positional relationship between the tip and the ignited flame hole 24' as a guide.

The ignition part is covered by the ignition part cover 32c, and the ignition electrode 30 is covered from above by the burner 9 and the electrode holding member 32. It is not easily contaminated and can exhibit stable automatic ignition function over a long period of time.

In addition, in the case shown, the tip of the ignition discharge terminal 30a,
The insulator positioning corner part 30b ₁ ', the center of the positioning square groove 33, the ignition flame hole 24', and the screw fixing part 29,
They are positioned on the same plane perpendicular to the axis of the burner 9, so that the machining positioning of each part can be done in the simplest and most reliable manner. However, the present invention is not limited thereto, and by taking advantage of the advantage that the ignition discharge terminal 30a can be easily properly opposed to the flame hole to be ignited in a bent state, the ignition electrode 30 can be placed in a posture that meets various requirements on the burner 9. It can be set in various positional relationships.

In the embodiment described above, the electrode holding plate 32 is positioned using the attachment hole 38, but any positioning method such as a concave-convex engagement portion provided corresponding to the ignited flame hole 24' of the burner 9 can be used for positioning. Positioning and mounting can be easily performed by providing a section and separately attaching by spot welding or screwing.

Effects According to this invention, the ignition electrode is held in a fixed position and orientation on one end piece of the electrode holding plate formed in a U-shape, and the inner corner of the hook-shaped attachment part that does not hold the ignition electrode is Place the part on the outer periphery of the pipe burner,
The fitting part was screwed in one place and the tip of the ignition discharge terminal of the ignition electrode faced the ignited flame hole of the pipe burner to form the ignition part. Then, the hook-shaped mounting part of the electrode holding plate was attached to the pipe burner. It is easier to work when installed with the electrode holder plate latched on the pipe burner, and it is easier to set the appropriate position by rotating the electrode holding plate around the pipe burner while it is latched.

In addition, since an ignition part cover is formed on the tip of the hook-shaped mounting part itself to cover the upper part of the ignition part, it is possible to prevent boiling liquid from falling into the ignition part or from wind hitting the ignition part without complicating the structure. It protects the discharge terminal and ignition flame hole from boiling liquid and dirt and corrosion, ensuring high ignition performance over a long period of time, and also prevents situations where it is difficult to ignite due to the influence of wind. can be avoided.

As described above, according to the present invention, the electrode holding plate can be easily attached to the appropriate position of the pipe burner, and by this attachment, the ignition discharge terminal, which forms the ignition part, and the pipe burner can be easily attached to the appropriate position. It is possible to provide an ignition device for a pipe burner that can reliably protect the flame hole to be ignited.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway plan view of one embodiment, Fig. 2 is a partially cutaway front view, Fig. 3 is a side view of the main part, and Fig. 4 is a rear view of the main part. FIG. 5 is a bottom view of the main part, and FIG. 6 is a slope view of the main part. 9... Pipe burner, 24'... Flame hole to be ignited,
30...Ignition electrode, 30a...Ignition discharge terminal, 3
0b...Insulator part, 30b ₁ ...Prismatic part, 30b ₁ '...
... Corner part to be positioned, 30b ₂ ... Cylindrical part, 30b ₃ ...
...Stepped part, 31... Automatic ignition piezoelectric device, 32... Electrode holding plate, 32a... Electrode holding part, 32b... Mounting part, 32c... Ignition part cover, 32e, 32f
... Electrode holding piece, 33 ... Positioning square groove, 34 ...
...Electrode presser foot, 38...Mounting hole that also serves as positioning part,
39... Screw fixing, 40... Mounting hole.

Claims (1)

[Scope of utility model registration request] Hold the ignition electrode in a fixed position and orientation on one end piece of the U-shaped electrode holding plate, and apply the inner corner of the hook-shaped mounting part that does not hold the ignition electrode to the outer periphery of the pipe burner. The fitting part is screwed in one place, and the tip of the ignition discharge terminal of the ignition electrode faces the ignited flame hole of the pipe burner to form the ignition part, and the tip of the hook-shaped attachment part itself has the ignition part. An ignition device for a pipe burner characterized by forming an ignition part cover that covers the upper part.