JP2887777B2 - Gas stove - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a plurality of burners each comprising a burner body and a detachable burner head. The present invention relates to a gas stove having a temperature sensor for detecting a temperature by contact with the gas stove.

[0002]

2. Description of the Related Art A gas stove burner,
It is known to provide a temperature sensor as shown in JP-A-88014. This temperature sensor is disposed above the center of the burner, and the temperature sensor detects the temperature of the cooking vessel and automatically adjusts the heating power of the burner. And fried delicious tempura. The burner is provided with a heat shield tube surrounding the temperature sensor so that the temperature sensor is not directly affected by the radiant heat of the burner flame.

As described above, it is convenient to provide a temperature sensor in the burner so that the cooking temperature can be controlled. However, the temperature sensor can be applied to, for example, a case where yakisoba is cooked at a high temperature using a frying pan. Difficult to do,
When this kind of high-temperature cooking is performed, there is a disadvantage that the thermal power is cut off early by the temperature sensor. For this reason, in a gas stove provided with a plurality of burners, only a part of the plurality of burners is provided with a temperature sensor, and the remaining burners are not provided with a temperature sensor. The burner without a temperature sensor is not provided with the heat shield cylinder.

On the other hand, in each burner, a burner head is detachable from a burner body so that dirt such as boiling over can be easily cleaned. When the burner head is separated by
Regardless of the presence or absence of the heat shield cylinder, the burner head of a burner with a temperature sensor may be mistaken for the burner head without a temperature sensor. Is easy to make an error. Further, even if the diameters of the fitting portions are different, there is a possibility that the fitting portion is used without being fitted properly.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to prevent a burner head from being erroneously assembled as described above.

[0006]

According to a first aspect of the present invention, there is provided a burner body and a burner head which is detachably attached to the burner body. A gas stove provided with a plurality of burners having a center hole, and a temperature sensor protruding upward through the center hole to a part of the plurality of burners, a temperature sensor is provided. the burner of the burner head comprises a heat tube shield surrounding the temperature sensor, the burner head of the burner without the temperature sensor, projecting from its central hole, the interference member interfering with entry of temperature sensors this <br/>.

[0007] Further, as a more specific solution, as described in claim 2, in claim 1, the divided space of the center hole divided by the interference body has a shape that cannot pass through the temperature sensor. Or a means according to claim 1, wherein the temperature sensor is installed concentrically with the burner, and the interference body projects into the center hole up to the area of the temperature sensor. Used
Or, as described in claim 4, in claim 1,
The burner head of the burner without a temperature sensor is provided with an internal flame hole, and a means is used in which an interference body is provided at a position deviated from a radius line of the burner head passing through the internal flame hole.

[0008]

According to the first aspect of the present invention, the mounting destination of the burner head can be understood by checking whether or not there is an interfering object in the burner head. When the temperature sensor is used to mount the device on a burner body of a burner having a temperature sensor, the mounting of the interfering body in the center hole of the burner head is obstructed by the temperature sensor, and an assembly error is found.

According to the second aspect of the present invention, when the burner head having the interfering body is mounted on the burner body of the burner having the temperature sensor, the temperature sensor cannot pass through the divided space, and thus cannot be mounted. .

According to the third aspect of the present invention, even if the interfering body can pass through the side of the temperature sensor, the interfering body projects into the center hole to the area of the temperature sensor.
The burner head is misaligned with respect to the burner body and cannot be assembled.

According to the fourth aspect of the present invention, when the secondary air supplied through the center hole is supplied to the inner flame hole, it is supplied to the inner flame hole without being directly obstructed by the interference body. .

[0012]

An embodiment will be described below with reference to the drawings. In FIG. 1, 1 is a gas cooker, 2 is a main body, 3 is a top plate, and a normal gas burner 4 and a gas burner 5 with a temperature sensor are provided in the opening of the top plate 3. In the figure, 6 is a knob for a gas valve provided on the front wall 7 and 8 is a grill.

As shown in FIGS. 2 and 3, a normal gas burner 4 has a burner body 10a, a gas burner 5 with a temperature sensor has a burner body 10b, and each of the burner bodies 10a and 10b has a ring-shaped opening at the upper end. In the part, an inward cylindrical surface 11 on the center side and an upward mounting surface 12 on the outer peripheral side
Is provided. The cylindrical surface 11 of the burner body 10a and the burner body 10b have the same diameter, but the outer diameter of the mounting surface 12 is different, and the burner 5 of FIG. Temperature sensor 13 is arranged so that
Base 13 ₄ of the temperature sensor 13 is fixed to the body 2 by suitable connecting means.

[0014] The temperature sensor 13 is of a conventionally known, incorporating a temperature sensitive element 13 _2, such as a thermistor to the cylindrical body 13 in _1, the temperature sensitive element 13 _2, the control circuit via a cord 13 ₃ is connected adapted to control the gas valve provided in the gas circuit, the cylindrical body 13 _1, the base 1 via the spring 13 ₅
3 ₄ is resiliently supported. Incidentally base 13 ₄ of the temperature sensor 13 may be fixed to the burner body 10b.

The burner head 14 of the gas burner 4 shown in FIG.
Has a downward tubular portion 15 and the tapered flange portion 16 which opened the center hole 15 _1, to the flange portion 16 is different from the flame port groove depths between multiple teeth piece 17 of the outer peripheral lower surface 1
7 ₁ , 17 ₂ (FIG. 4) are formed, and the end flame 18
There are bored, to the lower end of the cylindrical portion 15, the center hole 15 ₁
Are interposed in the diametrical direction. The interference body 19 has a substantially arcuate shape, and an intermediate portion protrudes further downward from the lower end of the cylindrical portion 15. When the cylindrical portion 15 is fitted on the cylindrical surface 11 of the burner body 10a and the large number of teeth 17 are placed on the mounting surface 12, the large external flame opening 17 ₁₁ and the small external flame opening 17 ₁₂ To form By center hole 15 ₁ of the cylindrical portion 15 is 2 divided by the interference member 19 in FIG. 4, the maximum inscribed circle 15 that can be two divided holes 15 ₁₁
The diameter of _12, becomes smaller than the cylindrical body 13 ₁ of the diameter of the temperature sensor 13, the shape of the divided hole 15 _11, temperature sensor 13
Therefore, the burner head 14 of the gas burner 4 cannot be mounted on the burner body 10 b of the gas burner 5. In addition, cylindrical body 1
3 _first diameter is protruded be one temperature sensor 13 is smaller than the diameter of the largest inscribed circle 15 ₁₂ to pass through the divided hole 15 _11, the interference member 19 to the base 13 _fourth region of the temperature sensor 13 since the base 13 ₄ interferents 19 interferes with the horizontal direction, it is impossible to move the cylindrical portion 15 to the inner cylindrical surface 11 concentric position, the burner head 14 burner body 1
0b cannot be assembled.

[0016] figure 20 is a positioning projection, to position the burner head 14 with respect to the burner body 10a engages 12 to ₁ in a recess provided on the inner periphery of the mounting surface 12 of the burner body 10a. The positioning means can be avoided, for example, can position the claw trivet which will be described later in the position of the small outer flame port 17 ₁₂ of the burner head 14, being heated by a large flame outer flame port 17 ₁₁ large nail .

The use of this positioning means is convenient for employing direct ignition as the ignition means. In other words, the ignition electrode attached to the burner body or the appliance body and the special flame port for ignition formed in the burner head can be correctly positioned. The positioning means consisting of recesses 12 ₁ of the protrusion 20 and the burner body 10a of the burner head 14, a recess provided in the burner head 14 side, the convex portions may be those provided in the burner body 10a side.

FIGS. 5 and 6 are lines 5-5 and 6-6 of FIG.
In the sectional view taken along the line, the burner head 14 is first forged between the upper die 21 and the lower die 22 indicated by imaginary lines at the time of manufacture, and then the split holes 15 ₁₁ , 15 ₁₁ except the interference body 19. to form a, a trimming to remove the bottom 23 ₁ of the two semicircular performed, performs positioning of the burner head 14 for trimming the tool by the projections 20 at this time, avoiding interference member 19. Then the cutting allowance 23 _second inclined lower surfaces and interference body 19 of the cylindrical portion 15, by scraping the peripheral cutting allowance 23 ₃ of the cylindrical portion 15 on a lathe, cylindrical portion fitted to the cylindrical surface 11 of the burner body 10 15 and the lower end surface and the outer peripheral surface of the inclined lower surface of the inclined portion 19 ₁ of the interference member 19 is be finished. The interference body 19 protrudes downward from the lower end surface of the cylindrical portion 15 by a height h.

FIG. 7 shows a burner head 25 used in the burner 5 with the temperature sensor of FIG.
_1. A downwardly facing cylindrical portion 26, a flange portion 27 having a horizontal upper surface, and an upwardly directed heat shield tube 28 are provided.
Are three connecting columns 3 with a gap 27 and a flange portion 27.
0 is connected. A tapered tooth piece is provided on the lower surface on the outer peripheral side of the flange portion 27 to form a flame groove 31 and a positioning projection 32 is also provided. Flame groove 31
Similar to the burner head 14 in cooperation with the mounting surface 12 of the burner body 10b forming the outer flame port 31 _1.

As shown in FIG. 3, the burner head 25 fits the cylindrical portion 26 to the cylindrical surface 11 in a state where the heat shield cylinder 28 surrounds the temperature sensor 13, and forms the lower end of the tooth piece forming the flame opening groove 31. forming an outer flame port 31 ₁ by placing the the mounting surface 12. The burner heads 14 and 25 are configured as described above, and the respective cylindrical portions 15 and 26 have the same outer diameter.
The inner diameters of the cylindrical surfaces 11 of both burner bodies 10a and 10b are the same.

[0021] figure 33 is trivet, 34 in soup pan Placing the cooking vessel 35 on the temperature sensor 13 and the trivet 33, at its weight, the cylindrical body 13 _first temperature sensor 13, spring 13 ₅ of elastic Depressed against force. Cooking is performed by igniting the gas burner 5 with a pilot burner (not shown), and the temperature sensor 13 detects the temperature at the bottom of the container. At this time, the thermal barrier cylinder 28 blocks the radiant heat of the flame exiting from the outer flame port 31 _1, to prevent the cause error in the detected value of the temperature sensor 13 by the radiant heat.

[0022] When the gotoku 33, the soup tray 34, the burner heads 14 and 25, etc. are contaminated with the broth, remove them with a stove 1
After being removed and cleaned, it is assembled and restored. However, since the cylindrical portions 15 and 26 of both burner heads 14 and 25 have the same outer diameter, the burner head 25 of the gas burner 5 is mistakenly attached to the burner body 10a of the gas burner 4 during assembly. And the burner head 14 of the gas burner 4 may be assembled to the burner body 10b of the gas burner 5. In addition, erroneous assembling may be performed even in a burner of a type in which the outer diameters of the two cylindrical portions 15 and 26 are different. However, since the burner head 14 has the interference body 19, even if the burner head 14 is mounted on the burner body 10b of the burner 5, the interference body 19 is obstructed by the temperature sensor 13 as described above. Is impossible, and immediately notices an error.

[0023] The embodiment has been protruded to the center hole 15 ₁ of the interference member 19 provided in the center hole 15 on _a diameter line of the burner head 14, Fig. 8, the interference of the Y-shaped as shown in FIG. 9 3
6 may even interferer 37 of trivet type, short split hole S _1, S ₂
Or the S ₃ in a shape temperature sensor 13 can not pass, or as in the interference body 36, in the structure that protrudes into the region of the temperature sensor 13 in the center of the center hole 15 _1, the space S
_{Even if the} temperature sensor 13 can pass through ₁ , the misalignment may occur between the temperature sensor 13 at the center of the burner and the burner head 14 so that the burner body and the burner head are misaligned.

In these embodiments, the interference members 36 and 37 are used.
Are arranged on a radius line having a different phase from the inner flame opening 18 and passing through an intermediate position between two adjacent inner flame opening bases 18a. According to this, the secondary air for the inner flame opening 18 is
6 and 37, the air is supplied well, and the material distribution between the inner flame base 18a and the interfering bodies 36 and 37 is made uniform. become. Therefore, when the interfering body on the diameter line as shown in FIG. 4 is provided, the interfering body 38 is provided at a position deviated from the radial line passing through the inner flame opening 18 or the inner flame base 18a as shown in FIGS. Is preferred. In this example,
The interference body 38 has a linear shape and is provided at a position retracted inward from the lower end of the cylindrical portion 15.

The embodiment of FIG. 12 is obtained by projecting a single interferer 39 to near the center of the center hole 15 _1, the interference member 3
The largest inscribed circle 15 that touches the divided space divided by 9
₁₂ has a larger diameter than the cylindrical portion 13 ₁ of the temperature sensor 13, the temperature sensor 13 can pass through the inner Se'en 15 _12, the cylindrical portion 13
If you try to burner head 14 _{after 1} passes concentrically moves horizontally, the interference member 39 can not be assembled in the burner body without repaired is misalignment to be interference at the base 13 _4.

Further, when one interference body 19 is provided so as to protrude further from the lower end of the cylindrical portion 15 by h as in the first embodiment, it is very easy to visually recognize that it is for a normal burner. Without removing the burner head 14
When placed on a flat surface such as the above, there is an advantage that it is difficult to be erect by the interference body 19, so that it is known in advance that it is for a normal burner. However, the interference bodies 19, 36, 37, 38, 39, etc. In addition, even if it is provided in the middle part or the upper part, each interference body can be easily visually recognized, and when assembled on the burner 5 side with the temperature sensor, the temperature sensor 13 cannot pass through the divided space or the burner head is Since the state is shifted, an error can be immediately recognized.

In each of the above embodiments, each of the interfering bodies 1
Although 9, 36, 37, 38, and 39 are all located on the radius line of the burner head, they need not be arranged in such a manner. In the above embodiment, two gas burners are provided as an example of a gas stove having a plurality of burners, one of which is provided with a temperature sensor, and the other is not provided with a temperature sensor. Alternatively, three burners may be provided, one of which may have a temperature sensor, and the other two may not have a temperature sensor, or vice versa. The same applies to the case where there are four or more burners. In each case, a normal type burner head having a size or a shape that is easily erroneously assembled to a burner body with a temperature sensor is provided with an interference body.

[0028]

As is apparent from the above description, according to the first, second, and third aspects, the burner head used for the burner without the temperature sensor has an interfering body projecting from the center hole. Is provided, the type of burner head can be immediately understood by looking at the interference body. If the burner head having the interfering body is to be assembled to the burner body having the temperature sensor, the burner head has an effect that the burner head is blocked by the temperature sensor or misaligned, so that it is possible to know the assembly error.

According to the fourth aspect of the present invention, since the secondary air passing through the center hole is hardly obstructed by the interfering body, the supply of air to the inner flame opening can be performed well.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment.

FIG. 2 is a longitudinal sectional view of a normal burner.

FIG. 3 is a longitudinal sectional view of a burner with a temperature sensor.

FIG. 4 is a bottom view of a burner head of a normal burner.

FIG. 5 is a sectional view taken along line 5-5 in FIG. 4;

6 is a sectional view taken along line 6-6 in FIG. 4;

FIG. 7 is a longitudinal sectional view of a burner head of a burner with a temperature sensor.

FIG. 8 is a plan view of another embodiment of a burner head of a normal burner.

FIG. 9 is a plan view of still another embodiment of a burner head of a normal burner.

FIG. 10 is a plan view of another embodiment of a burner head of a normal burner.

11 is a sectional view taken along line 11-11 of FIG. 10;

FIG. 12 is a plan view of still another embodiment of a burner head of a normal burner.

[Explanation of symbols]

4,5 burners 10a, 10b burner body 13 the temperature sensor 14, 25 the burner head 15, 26 tubular portion 15 _1, 26 ₁ central hole 19,36,37,38,39 interferents

Continued on the front page (58) Fields surveyed (Int. Cl. ⁶ , DB name) F24C 3/12 F23D 14/06 F23N 5/14 370 F24C 15/36 F24C 3/08

Claims (4)

(57) [Claims] 1. A burner body comprising a burner body and a burner head detachably mounted on the burner body, and having a plurality of burners having a central hole vertically penetrating at the center thereof. In a gas stove provided with a temperature sensor projecting upward through the center hole, a burner head of a burner provided with a temperature sensor is provided with a heat shield cylinder surrounding a temperature sensor, and a burner not provided with a temperature sensor. the burner head, in the center bore, characterized in that projecting from the interference member interfering with entry of temperature sensors, gas stove. 2. The gas stove according to claim 1, wherein the divided space of the center hole divided by the interference body has a shape that cannot pass through the temperature sensor. 3. The gas stove according to claim 1, wherein the temperature sensor is installed concentrically with the burner, and the interference body protrudes into the center hole up to a region of the temperature sensor. 4. The burner according to claim 1, wherein the burner head of the burner without a temperature sensor has an internal flame hole, and has an interference body at a position deviated from a radial line of the burner head passing through the internal flame hole. Yes, gas stove.