JPS6319742Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an oil combustor, particularly an ignition device thereof.

Configuration of the conventional example and its problems The conventional example will be explained with reference to FIGS. 3 to 10. 1
0 is an outer core guide cylinder having a large number of small holes 11 on the outer periphery of the upper end, and 12 is a wick located inside the outer core guide cylinder and provided so as to be vertically movable, and these constitute a burner section. To explain the ignition device that ignites this burner part, 1
3 is an ignition window provided in the outer core guide tube 10; 14 is a shutter that can be opened and closed to normally close the ignition window 13; 15 is a shutter with one end fixed to the shutter 14 and the other end 15a bent at a right angle. The connecting rod 16 is a support attached to the bottom of the outer core guide cylinder 10 with a screw 17, and supports the connecting rod 15 in a rotatable manner and has a guide portion 16a forming a rail. 1
Reference numeral 6b denotes a cut and raised piece provided on the support body 16, which horizontally contacts the lower part of the outer core guide cylinder 10. Reference numeral 18 indicates a protrusion 1 on the guide portion 16a of the support body 16 as shown in FIG.
8a is fitted and slidably provided, and the portion facing the guide portion 16a is bulged upward to form a support portion 18b, and an L-shaped groove 19 shown in FIG. has been established. 20 is the ignition window 13
When the ignition window 13 opens, the lamp wick 12 is ignited, and when the ignition window 13 is closed, an ignition body such as an ignition heater is retracted from here. The convex portion 21 of is engaged with the groove 19. 20a is a heat generating portion of the ignition body 20, and 20b is a guard fixed to the tip of the ignition body 20, forming a gap 1 with the heat generating portion 20a. This gap l is formed by the lamp wick 1 formed by the guard 20b and the lamp wick 12 coming into contact with each other as shown in FIG. 9 when the ignition operation is performed.
The gap l' between the outside of the heat generating part 20a and the heat generating part 20a is equal to the gap l', which is the optimum size for ignition. 22 is a lead wire for the power source of the ignition body 20, and its terminal portion 23 is brought into pressure contact with the ignition body 20. Reference numeral 24 denotes an actuating body which is fixed to the sliding base plate 18 and has the ignition body 20 removably supported in a cylindrical part formed between it and the supporting part 18b, and includes an actuating part 24b for rotating the connecting rod 15, and a terminal part. 23, the Ω-shaped terminal cover part 24a and the button cover part 24
c, and are formed by pressing them together with a single metal plate. The other end 15 of the connecting rod 15 that is engaged with the operating portion 24b is inserted into the burner portion.
An operating groove 25 is formed for rotating clockwise a. The terminal cover portion 24a is formed with a T-shaped groove 26 in which the convex portion 21 of the ignition body 20 engages. Moreover, the button cover part 24c is located between the ignition button 27 and the ignition body 20, and blocks the radiant heat of the burner part. 28 is a sliding shaft fixed to the ignition button 27, and a U-shaped support piece 16b whose tip is formed on the support body 16.
It is made to be detachably attached to and slidably supported in the elongated hole 29, and is rotated so that the engagement T-shaped portion 30 at the tip is hooked on the elongated hole 29 to prevent it from coming off. 31 is an engaging part of the ignition button 27, and the sliding board 18
After passing through the hole 32 of the button cover part 24 of FIG.
Turn the ignition button 27 in the direction of the set shown in c to integrally connect the ignition button 27 to the sliding board 18. Further, when removing the ignition button 27, turn the ignition button 27 in the direction indicated by the button cover portion 24c in FIG. 33
is wrapped around the sliding shaft 28 to connect the engaging portion 31 of the ignition button 27.
A spring 34 interposed between the ignition body 20 and the support piece 16b is an insulator that covers the terminal portion 23 of the ignition body 20, and is held by a retaining spring 35 interposed between the cut and raised piece 18c of the sliding board 18. 36 is a power switch plate for the ignition body 20.

In the above configuration, when the ignition button 27 is pushed against the spring 33 in the direction of the arrow Y in FIG. Move and igniter 2
0 approaches the burner section. On the other hand, the actuating groove 25 of the actuating portion 24b in the actuating body 24 is located at the other end 15a.
Since the connecting rod 15 engaged with the shutter 14 is rotated, the shutter 14 is also rotated downward. Then, the ignition body 20 ignites the lamp wick 12 through the open ignition window 13. Thereafter, when the pressing force is removed from the ignition button 27, the ignition body 20 returns to its original position due to the repulsive force of the spring 33, while the shutter 14 closes the ignition window 13, completing ignition.

Ignition is performed as described above,
This has the following problems.

That is, what supports the force when the ignition button 27 is pressed is the fastening portion between the screw 17 and the outer core guide tube 10, and the contact portion between the cut and raised piece 16b and the outer core guide tube 10. Since the horizontal position of the piece 16b is below the center of the ignition button 27, the ignition button 2
When 7 is pressed, the outer core guide cylinder 10 is moved above the cut and raised piece 16b of the support body 16 using the cut and raised piece 16b as a fulcrum.
lean to the side. Therefore, when the ignition body 20 comes into contact with the lamp wick 12 as shown in FIG.
However, the lamp wick 12 is slightly embedded, and the gap l'' formed between the heat generating part 20a and the lamp wick 12 is smaller than the optimum dimension l' at the time of ignition. In addition, the cut and raised pieces 16b are provided in the horizontal direction, and since the outer core guide cylinder 10 is cylindrical, the abutting portions are point contact.Furthermore, the cut and raised pieces 16b are provided at only one place. Because it is not provided, the structure is such that the above-mentioned troublesome phenomenon is likely to occur.

Purpose of the invention Therefore, the purpose of the present invention is to ensure that ignition is always performed smoothly.

Structure of the Device In order to achieve the above object, the present invention includes a cut-and-raised piece for forming a gap between the support body and the core guide cylinder, and a cut-and-raised piece is placed at the center of the operating body or from this center. It is brought into contact with the core guide cylinder at the top.

DESCRIPTION OF EMBODIMENTS One embodiment will be described below with reference to the drawings.
In this embodiment, the same parts as those in the conventional example described above are given the same numbers to simplify the explanation.

In FIGS. 1 and 2, reference numeral 1 denotes a support body, which is erected and fixed on the bottom upper surface of the cylindrical outer core guide tube 10 with two screws 17.

Further, a gap 2 is formed between the vertical wall portion 1a of the support body 1 and the outer core guide tube 10 by bringing the cut and raised pieces 1b on both sides into contact with the outer surface of the outer core guide tube 10. This cut and raised piece 1b is a vertically long strip piece, and is provided above the center of the ignition button 5 as an operating body.

In this gap 2, a vertical wall-shaped shutter 3 made of stainless steel is arranged so as to be movable up and down. The shutter 3 has a square shape and is curved in an arc along the outer surface of the core guide tube 10 in order to cover the square ignition window 13 formed in the outer core guide tube 10. 3a is an arm 3 extending toward the ignition body 20 through a vertically elongated guide hole (not shown) formed in the vertical wall portion 1a.
b is integrally formed.

Further, the upper end of the vertical wall portion 1a is bent in the horizontal direction on the side opposite to the core guide cylinder 10, and a guide portion 1c forming two horizontal rails is formed.

The guide portion 1c is slidably provided with a sliding board 4 on which the ignition body 20 is fixed by caulking on the central part, and the opposite end of the sliding board 4 from the outer core guide cylinder 10 is provided. There is an ignition button 5 at the end of the
is fixed.

In addition, horizontal pieces 1e and 4b are extended to face the downwardly hanging pieces 1d and 4a of the guide portion 1c and the sliding board 4, respectively, and these hanging pieces 1d, 4a are extended to face each other.
A spring 6 is provided in between, which is prevented from coming off by horizontal pieces 1e and 4b, and has a larger diameter on the horizontal piece 4b side.

On the other hand, the opening side end 7a of the U-shaped connecting rod 7 is rotatably inserted into the hole 4f of the left and right side pieces 4e of the sliding board 4, and the central side 7b of the connecting rod 7 is connected to the second hole 4f. As shown in the figure, it rotatably passes through hole b of arm 3b.

In the configuration of the above embodiment, the ignition button 5 is
When the pressing operation is performed to the right in the figure, the sliding board 4, the igniter 20, and the connecting rod 7 also move to the right, so that the central side 7b of the connecting rod 7 is lowered, and the arm 3b and the extension part 3a are moved to the right. Through this, the shutter 3 moves downward and the ignition window 13 is opened.

At this time, the tip of the ignition body 20 approaches the lamp wick 12 through the ignition window 13, and the ignition body 20 approaches the lamp wick 12 through the ignition window 13.
Due to the movement of the ignition body 20, electricity is supplied to the heat generating portion 20a of the ignition body 20 via the lead wire 22 and the electrode 8, and heat is generated, so that ignition is performed. In addition, the heat generating part 2
0a and the guard 20b fixed to the tip of the igniter 20 form a gap l (shown in Fig. 4), and this gap l, as shown in Fig. 9, allows the guard 20b and the lamp wick 12 to separate when the ignition is operated. It is equal to the gap l' between the outer circumferential surface of the lamp wick 12 and the heat generating part 20a, which are formed in contact with each other, and has an optimum dimension for ignition.

Ignition is performed as described above,
The pressing force of the ignition button 5 is due to the fastening portion between the screw 17 and the outer core guide tube 10, and the contact portion between the cut and raised piece 1b and the outer core guide tube 10, but the horizontal position of the cut and raised piece 1b is Since it is located above the center of the ignition button 5, the gap 2 formed by the support 1 and the outer core guide tube 10 does not change even if the ignition button 5 is pressed.

That is, since the gap l and the gap l' are always maintained at the same optimum size, the ignition time will not be long and the ignition will not occur even after long-term use, allowing reliable ignition operation. Moreover, since the cut and raised pieces 1b are elongated in the vertical direction, even if the outer core guide tube 10 is cylindrical, they are in line contact. Furthermore, since it is provided at two locations on both ends, the gap 2 is also provided in the planar direction.
There is no change when the ignition button 5 is pressed.

Note that the shutter 3 of the above embodiment is provided with a plurality of air holes 3d. Also, 20c is the electrode 8
ring-shaped protrusion for contacting, 3c is the extension part 3
This is a guide piece that is integrally formed with the arm 3b and passes through the guide hole like the arm 3b.

Effects of the invention As described above, according to the invention, even if the ignition device is a compact type in which a gap is provided between the core guide cylinder and the support and the shutter is installed in this gap so that the shutter can be opened and closed, the igniter generates heat. By keeping the gap between the lamp and the lamp wick constant, ignition can be stabilized.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the main parts of an oil combustor according to an embodiment of the present invention, Fig. 2 is a right side sectional view of the main parts, Fig. 3 is a perspective view of the main parts of a conventional example, and Fig. 4 is FIG. 5 is a right side sectional view of the main parts, FIG. 6 is a front view showing the installed state of the actuating body, FIG. 7 is a perspective view of the actuating body, and FIG. 8 is an expanded view of the actuating body. 9 and 10 are right side sectional views of main parts showing the positional relationship when the operating body is pressed. DESCRIPTION OF SYMBOLS 1... Support body, 1b... Cut-and-raised piece, 3... Shutter, 5... Ignition button (operating body), 10... Outer core guide tube, 12... Light wick, 13... Ignition window, 20...
Ignition body, 20a... heat generating part, 20b... guard.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A lamp wick that is movable up and down, a wick guide tube provided on at least one of the outside or inside of the wick, and an ignition window formed in the wick guide tube that opens and closes. A shutter, an operating body that opens and closes the shutter, an ignition body that moves to the ignition window when the operating body opens the shutter, and a support that slidably holds the operating body, A cut-and-raised piece for forming a gap in which the shutter is positioned between the support body and the core guide tube is provided, and this cut-and-raised piece is brought into contact with the core guide tube at the center of the operating body or above the center. oil burner. (2) The oil combustor according to claim 1 of the utility model registration claim, in which the cut and raised pieces are vertically long strips, and the vertical edges of the cut and raised pieces are brought into contact with the core guide tube along the vertical direction. . (3) The oil combustor according to claim 1 or 2 of the utility model registration claim, in which cut and raised pieces are provided on both sides of the support.