JPH11264544A - Structure of attaching accessory to burner for gas cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach an ignition plug or a thermocouple with good work efficiency and easily. SOLUTION: A parts mounting metal fitting 2 is attached to the bottom of a burner body 1. The parts mounting metal fitting 2 is provided with a roughly U-shaped plug mount 2a. Ignition plugs 7 are inserted into the insertion holes 5 and 6 provided, respectively, in the upper piece 3 and the lower piece 4 of the plug mount 2a. The locking step 7a of the ignition plug 7 is abutted against the downside of the brim of the insertion hole 5 of the upper hole 3. An elastic projection 8 cut and erected obliquely upward from the brim of the insertion hole 6 of the lower hole 4 is brought into elastic contact with the outside of the ignition plug 7. A thermocouple 10 is inserted into the insertion hole 9 provided at the thermocouple mount 2b of the parts mounting metal fitting 2, and also the thermocouple 10 is inserted into the plug-in hole 11 provided in the burner body 1. The elastic projection 12 cut and erected obliquely upward from the brim of the insertion hole 9 of the thermocouple mount 2b is brought into elastic contact with the outside of the thermocouple 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching an accessory such as a spark plug or a thermocouple to a gas stove burner.

[0002]

2. Description of the Related Art A conventional gas stove burner is configured as shown in FIGS. A burner cap c is removably mounted on a burner base b of a burner main body a formed of a sheet metal or the like, and a number of circumferentially extending flame holes d between an outer peripheral portion of the burner cap c and the burner base b. Is provided. A gas nozzle f is provided at the base end of the mixing pipe e of the burner body a.
The fuel gas is supplied from the gas nozzle f, the primary air is sucked from the base end of the mixing pipe e, and the fuel gas and the primary air are mixed in the mixing pipe e.
Then, the gas mixed in the mixing pipe e passes through the annular space h between the burner cap c and the burner base b to form a flame hole d.
It squirts from. One of said multiplicity of burner ports d but has a ignition burner ports d _1, are the ignition chamber i arranged on the outer periphery of the ignition burner ports d _1. An ignition plug j is attached to the burner main body a with an attachment fitting k, and a discharge electrode m of the ignition plug j faces the ignition chamber i. A target electrode n is provided on the burner cap c so as to face the ignition chamber i, and the discharge electrode m and the target electrode n are opposed to each other. In the figure, p is a thermocouple for detecting the presence or absence of combustion, and is attached to the mounting bracket k.

[0003] In such a gas stove burner, a spark plug j and a thermocouple p are attached as accessory parts. Conventionally, the ignition plug j and the thermocouple p are attached to a mounting bracket k as shown in FIG. Was. That is, the ignition plug j is disposed at the plug mounting portion q of the mounting bracket k, and the thermocouple p is disposed at the thermocouple mounting portion r of the mounting bracket k.
In addition, the spark plug j and the thermocouple p were attached by hanging the wire s around the thermocouple p and attaching the wire s to the mounting bracket k.

[0004]

However, in the above-mentioned prior art, the spark plug j
In addition, there is a problem that the mounting operation is difficult because the thermocouple p is mounted, and the wire s is required in addition to the mounting bracket k because the mounting is performed using the wire s, thereby increasing the number of members.

SUMMARY OF THE INVENTION The present invention has been made in view of the above description, and can easily mount a spark plug and a thermocouple with good workability, and can mount the spark plug and the thermocouple without requiring extra members. Another object of the present invention is to provide a structure for attaching an accessory to a gas stove burner, which can reduce the number of components.

[0006]

According to a first aspect of the present invention, there is provided a gas stove burner mounting structure for mounting an accessory part on a lower surface of a burner body. The component mounting bracket 2 is provided with a substantially U-shaped plug mounting portion 2a, and the ignition plug 7 is inserted through insertion holes 5 and 6 provided in the upper piece 3 and the lower piece 4 of the plug mounting portion 2a, respectively. The engaging step 7a of the spark plug 7 is engaged with the lower surface side of the hole edge of the insertion hole 5 of the upper piece 3, and the elastic protrusion 8 cut and raised obliquely upward from the hole edge of the insertion hole 6 of the lower piece 4 is formed. It is characterized by being made to elastically contact the outer surface of the spark plug 7. By inserting the ignition plug 7 into the insertion holes 5 and 6 of the upper piece 3 and the lower piece 4 of the plug mounting portion 2a, the locking step 7a is locked to the hole edge of the insertion hole 5 and the elastic protrusion 8 is attached. The ignition plug 7 can be attached to a predetermined position by elastic contact with the outer surface of the ignition plug 7, and the ignition plug 1 can be attached only by inserting the ignition plug 7 into the insertion holes 5 and 6, and the work of attaching the ignition plug 1 In addition, the number of members required for mounting the spark plug 7 can be reduced without requiring extra members.

According to a second aspect of the present invention, there is provided a structure for attaching an accessory to a gas stove burner.
The thermocouple 10 is inserted through the insertion hole 9 provided in the thermocouple mounting portion 2b of the component mounting bracket 2, and the thermocouple 10 is inserted into the insertion hole 11 provided in the burner main body 1, and the insertion hole 9 of the thermocouple mounting portion 2b is inserted. The elastic protruding piece 12 cut obliquely upward from the edge of the hole is elastically contacted with the outer surface of the thermocouple 10. Thermocouple 10 is inserted through insertion hole 9 and insertion hole 11
By inserting the elastic protruding piece 12 into the outer surface of the thermocouple 10, the thermocouple 10 can be attached to a predetermined position by attaching the elastic protruding piece 12 to the thermocouple 10, so that the workability of attaching the thermocouple 10 can be improved. The number of members required for mounting the couple 10 can be reduced.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The burner main body 1 has a mixing tube 13 integrally as shown in FIGS. 2 and 3, and is made of aluminum in this embodiment. A gas nozzle for supplying fuel gas is provided at the base end of the mixing pipe 13 as in the conventional example. When fuel gas is supplied from the gas nozzle, primary air is sucked from the base end of the mixing pipe 13 and the fuel The gas and the primary air are mixed. An annular burner base 14 is provided on the upper surface of the burner main body 1, and an annular burner cap 15 is mounted on the burner base 14. In the case of this example, the burner cap 15 is also formed of aluminum. A number of grooves are formed in the lower surface of the burner cap 15 in the circumferential direction,
A large number of flame holes 16 are formed in the groove between the burner cap 15 and the burner base 14 in the circumferential direction.

A flange portion 24 having a substantially arc-shaped cross section extends outward from the outer periphery of the burner base 14 and is integrally extended.
Further, the receiving step 17 is integrally extended from the flange 24 toward the outer periphery. Top plate 1 made of a material such as glass
8 is provided with a circular opening 19 having a diameter larger than the outer diameter of the flange 24, and the edge of the opening 19 of the top plate 18 is placed on the step 17. An annular holding plate 20 is placed on the receiving step 16 via the edge of the opening 19 of the top plate 18, and the opening 19 of the top 18 is placed between the holding plate 20 and the receiving step 16. The top plate 18 is attached so as to sandwich the edge.

In the present example, the sword 25 is formed by arranging five swords 25b at equal intervals (interval of 72 °) in the circumferential direction, and the burner cap 1 is attached to the five swords 25b.
A disk-shaped saucer 40 that covers the upper part of the tray 5 is provided integrally. The lower part of each of the swords 25b is a sword 25a, and the lower end of each sword 25a can be placed on the holding plate 20 or the top plate 18.

A slit 26 serving as an ignition flame hole is vertically formed at an appropriate position in the circumferential direction of the burner base 14. In the case of this example, the slit 26 is provided so as to be longer in a direction orthogonal to the circumferential direction, and the end of the slit 26 reaches the outer peripheral end of the burner base 14. On the upper surface of the burner base 14, on both sides of the slit 26, an inducing portion 27 for guiding the gas into the slit 26 is protrudingly provided, and the upper surface of the inducing portion 27 is a horizontal surface. The slit 26 is a narrow portion 26a having a small width at a portion where the guiding portion 27 is located (the outer peripheral side of the burner base 14), and is wide at a portion where the guiding portion 27 is not provided (the inner peripheral side of the burner base 14). It is a wide portion 26b. A space below the slit 26 of the burner base 14 is an ignition chamber 21, and an ignition target 28 is protruded from the vicinity of the slit 26 so as to reach the inside of the ignition chamber 21. The ignition plug 7 is attached to the burner main body 1 on the lower surface side of the burner base 14 with a component attachment fitting 2 described later, and the discharge electrode 7b of the ignition plug 7 is opposed to the ignition target 28. A protruding portion 29 that protrudes upward is provided at a portion of the flange portion 16 corresponding to the ignition chamber 21, and an elongated hole portion 30 is provided above the protruding portion 29 so as to penetrate vertically. is there. The hole 30 is provided in the ignition chamber 21.
And communicates with the narrow portion 26a of the slit 26. A thermocouple 10 for detecting the presence or absence of a flame is inserted into the insertion hole 31 near the hole 30 of the burner body 1 so as to penetrate the insertion hole 31 vertically. 2, a thermocouple 10 is attached as described later.

Thus, the burner cap 1 is removed from the mixing tube 13.
When the gas is supplied to the annular space 32 between the burner base 5 and the burner base 14, the gas is ejected from the flame hole 16, while the gas is ejected from the slit 26 into the ignition chamber 21. At this time, a spark is generated between the discharge electrode 7b and the ignition target 28 to ignite the gas, and an ignition flame is formed from the slit 26. This ignition flame passes through the hole 30 from the ignition chamber 27.
The gas ejected upward through the nozzles is ignited by the gas ejected from the flame holes 16, and the combustion is continued so that a flame is emitted from the flame holes 16. At this time, when the temperature is detected by the thermocouple 10 and the flame is extinguished, the gas supply is cut off.

The component mounting bracket 2 for mounting the ignition plug 7 and the thermocouple 10 is formed, for example, as shown in FIGS. The component mounting bracket 2 is formed by sheet metal processing a metal plate having a relatively spring property, and is provided with a plug mounting portion 2a, a thermocouple mounting portion 2b, and an element mounting portion 2c. The plug mounting portion 2a is formed by bending in a substantially U-shape, and includes an upper piece 3, a lower piece 4, and a side piece 22. The upper piece 3 has a circular insertion hole 5 formed therein, and the lower piece 4 has a rectangular insertion hole 6 formed therein. The ignition plug 7 is formed by projecting a discharge electrode 7b from an end of a cylindrical insulator 7c, and has a prismatic portion 7d provided in the middle of the insulator 7c, and is provided at an upper end and a lower end of the prismatic portion 7d. A locking step 7a is provided. The circular insertion hole 5 provided in the upper piece 3 has substantially the same diameter as the diameter of the cylindrical portion above the prismatic portion 7d of the insulator 7c of the ignition plug 7. The distance between the upper piece 3 and the lower piece 4 is an insulator 7c.
Is the same as the height of the prismatic portion 7d. The insertion hole 6 provided in the lower piece 4 has a rectangular shape and is larger than the outer shape of the prismatic portion 7d. At the edge of the insertion hole 6 of the lower piece 4, a strip-shaped elastic projecting piece 8 is cut and raised obliquely upward. A rectangular insertion hole 9 larger than the outer shape of the thermocouple 10 is drilled in the thermocouple mounting portion 2b of the component mounting bracket 2, and a strip-like elastic protruding piece 12 projecting obliquely upward from the hole edge of the insertion hole 9. Is cut and raised so as to project obliquely upward. In the middle of the thermocouple 10, a locking groove 10a for locking the tip of the elastic protruding piece 12 is provided. A notch 33 is provided in the element mounting portion 2c of the component mounting bracket 2, and a locking portion 34 and a holding edge 35 are provided on both sides of the notch 33.
Is provided. The element mounted on the element mounting portion 2c is a temperature detecting element 36 for detecting the temperature of the burner main body 1, and is formed in a disk shape. Such a temperature detecting element 36
Detects the temperature of the burner main body 1 and stops the combustion when the burner main body 1 is heated to a predetermined temperature or higher. In the right place of the component mounting bracket 2, the component mounting bracket 2
A mounting hole 23 is provided for mounting the component to the burner main body 1, and a positioning hole 37 for positioning the component mounting bracket 2 on the lower surface of the burner main body 1 is provided. It can engage with the positioning projection 39.

The component mounting bracket 2 is disposed at a predetermined position below the lower surface of the burner main body 1, and is mounted on the lower surface of the burner main body 1 by screwing a mounting screw from the mounting hole 23 into the female screw hole 38. At this time, the positioning holes 37 are engaged with the positioning projections 39 on the lower surface of the burner main body 1 so that the component mounting bracket 2 is mounted so as not to rotate. When attaching the ignition plug 7 to the plug attachment portion 2 a of the component attachment fitting 2, the ignition plug 7 is inserted into the insertion holes 6 and 5 from below the lower piece 4. When the ignition plug 7 is inserted, the upper portion of the ignition plug 7 is inserted into the insertion hole 5 of the upper piece 3 and the locking step 7 a on the ignition plug 7 is formed on the lower surface side of the hole edge of the insertion hole 5. , The lower part of the ignition plug 7 is the lower piece 4
The engaging step 7a below the ignition plug 7 is engaged with the upper surface of the hole edge of the insertion hole 6, and the elastic projection 8 contacts the outer surface of the insulator 7c of the ignition plug. Touched.
By attaching the ignition plug 7 in this manner, the ignition plug 7 can be firmly attached to a predetermined position. Further, the ignition plug 7 can be attached simply by inserting it into the insertion holes 5 and 6, so that the attachment of the ignition plug 7 can be performed with good workability and without requiring extra members. When attaching the thermocouple 10 to the thermocouple mounting portion 2 b of the component mounting bracket 2, the thermocouple 10 is inserted from below the insertion hole 9 into the insertion hole 9 and the burner main body 1.
Through the insertion hole 11. By inserting the thermocouple 10, the upper part of the thermocouple 10 is inserted into the insertion hole 11 and the lower part of the thermocouple 10 is inserted into the insertion hole 9, and the elastic protruding piece 12 is engaged with the locking groove 10 a of the thermocouple 10. Is stopped. By attaching the thermocouple 10 in this manner, the thermocouple 10 can be firmly attached to a predetermined position. Further, the thermocouple 10 can be attached simply by being inserted, so that the thermocouple 10 can be attached with good workability without requiring extra members. When attaching the temperature detecting element 36 to the element mounting portion 2c of the component mounting bracket 2, the locking portions 34 on both sides of the notch 33 are used.
The temperature detecting element 36 is inserted between the pressing edge 35 and the back surface of the burner main body 1, and the locking portion 34 is locked to the temperature detecting element 36 and pressed by the pressing edge 35.

The component mounting bracket 2 described above is mounted on a burner of a standard size, but the component mounting bracket 2 mounted on a burner of a small size is configured as shown in FIGS. The component mounting bracket 2 is also for mounting the ignition plug 7, the thermocouple 10, and the temperature detecting element 36 in the same manner as described above, and has the same basic structure as the above, and the plug mounting portion 2
a, thermocouple mounting section 2b, element mounting section 2
Only the position of c is different. For this reason, the same reference numerals are given to the same portions, and the detailed description is omitted.

[0016]

According to the first aspect of the present invention, a component mounting bracket made of sheet metal is mounted on a lower surface of a burner main body, and a substantially U-shaped plug mounting portion is provided on the component mounting bracket. The ignition plug is inserted through the insertion holes provided in the upper piece and the lower piece, and the locking step of the ignition plug is engaged with the lower surface side of the hole edge of the insertion hole of the upper piece. Since the elastic protruding piece cut obliquely upward from the edge is elastically contacting the outer surface of the spark plug, the spark plug is inserted into the upper and lower piece insertion holes of the plug mounting part, so that the hole edge of the insertion hole The elastic plug can be attached to a predetermined position by elastically projecting the elastic protruding piece against the outer surface of the spark plug, and the spark plug can be inserted only by inserting the spark plug into the insertion hole. Can be installed to improve workability of spark plug installation And the kill those, yet is capable of reducing the number of members required for mounting the spark plug without requiring extra member.

Further, the invention of claim 2 of the present invention is directed to claim 1
At the same time, insert the thermocouple into the insertion hole provided in the thermocouple mounting part of the component mounting bracket and insert the thermocouple into the insertion hole provided in the burner body, and diagonally upward from the hole edge of the insertion hole of the thermocouple mounting part Since the cut and raised elastic protruding piece is elastically contacting the outer surface of the thermocouple, the thermocouple is inserted into the insertion hole and the insertion hole so that the elastic protruding piece elastically contacts the outer surface of the thermocouple and the thermocouple is attached to the predetermined position This can improve the workability of attaching the thermocouple, and can reduce the number of members required for attaching the thermocouple without extra members.

[Brief description of the drawings]

FIG. 1 shows a main part of an example of an embodiment of the present invention;
(A) is sectional drawing of the principal part, (b) is a bottom view.

FIG. 2 is a cross-sectional view of the entire gas stove burner.

FIG. 3 is a plan view of the same.

4A and 4B show a state in which the mixing tube of the burner main body is omitted, FIG. 4A is a plan view, and FIG. 4B is a bottom view.

5A and 5B show details of a slit and a hole, respectively, in which FIG. 5A is a plan view, and FIG. 5B is a sectional view taken along line XX of FIG.

6 (a) is a plan view, FIG. 6 (b) is a front view, FIG. 6 (c) is a side view, and FIG. 6 (d) is a bottom view.

7 (a) is a rear view of FIG. 6, and FIG. 7 (b) is a view in the direction of arrow A in FIG. 6 (b).

8A and 8B show another example of the component mounting bracket according to the embodiment, in which FIG. 8A is a plan view, FIG. 8B is a front view, FIG. 8C is a side view, and FIG.

9 (a) is a rear view of FIG. 8, and FIG. 9 (b) is a view in the direction of arrow B in FIG. 8 (b).

FIG. 10 shows a conventional example, in which (a) is a partially cutaway plan view,
(B) is a sectional view taken along line C-O-D of (a).

FIG. 11 is a sectional view taken along line EO of FIG.

FIG. 12 is a schematic perspective view of a main part of a conventional example.

[Description of Signs] 1 Burner main body 2 Parts mounting bracket 2a Plug mounting section 2b Thermocouple mounting section 3 Upper piece 4 Lower piece 5 Insertion hole 6 Insertion hole 7 Ignition plug 7a Locking step 8 Elastic protrusion 9 Insertion hole 10 Thermo Couple 11 insertion hole

Claims (2)

[Claims] 1. A component mounting bracket made of sheet metal is mounted on a lower surface of a burner main body, a substantially U-shaped plug mounting section is provided on the component mounting bracket, and an upper piece and a lower piece are provided on the plug mounting section, respectively. Insert the ignition plug into the insertion hole, and engage the locking step of the ignition plug with the lower surface side of the hole edge of the upper insertion hole,
An attachment structure for a gas stove burner, wherein an elastic protruding piece cut obliquely upward from the hole edge of the lower piece insertion hole is elastically contacted with the outer surface of the ignition plug. 2. A thermocouple is inserted through an insertion hole provided in a thermocouple mounting portion of a component mounting bracket, and a thermocouple is inserted through an insertion hole provided in a burner main body, from a hole edge of the insertion hole of the thermocouple mounting portion. 2. A structure for mounting an accessory part on a gas stove burner according to claim 1, wherein an elastic protruding piece cut and raised obliquely upward is brought into elastic contact with an outer surface of the thermocouple.