JP3777690B2 - Gas stove - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a gas stove such as a table stove.
[0002]
[Prior art]
Conventionally, a stove burner provided in this type of table stove or the like is configured as shown in FIGS.
[0003]
6 and 7, reference numeral 1 denotes a burner cap that constitutes a stove burner. A through hole 2 is provided on the upper surface side, and an upper surface protruding wall 3 surrounding the through hole 2 is formed on the upper surface side, and a lower surface protrusion surrounding the through hole 2 on the lower surface side. A large number of tooth-shaped flame holes 5 are arranged around the wall 4. The through hole 2 has several convex portions 6 arranged with a diameter of φA, and the diameter of the substantially intermediate portion 7 on the upper surface side and the lower surface side of the through hole 2 is φB. It is configured as φC on the side and φD on the lower surface side. When the size of the diameter of the opening 9 on the side surface 8 of the upper surface protruding wall 3 is φE, the relationship is φB <φA <φE <φC.
[0004]
In such a dimensional relationship, as shown in FIG. 6, an opening 9 is created by cutting the upper surface protruding wall 3 while leaving the partial protrusion 6, and the upper surface protruding wall 3 and the burner cap 1 are formed by the protrusion 6. It was designed to be integrated with the main body. In the conventional stove burner, when the opening 9 of the side surface 8 of the upper surface protruding wall 3 is formed, the burner cap 1 is formed by hot forging and the upper surface protruding wall 3 and the through hole 2 are provided. An opening 9 is formed by chucking the cap 1 on a machine tool such as a lathe and cutting to a diameter of φE, and the side surface 8 of the upper surface protruding wall 3 has a convex portion 6 on the main body portion of the burner cap 1. The shape was held.
[0005]
[Problems to be solved by the invention]
The conventional burner cap 1 formed in this manner has to be cut after forging and is completed only after at least two machinings. Accordingly, there has been a problem that the processing cost becomes twice and the cost becomes high. The through-hole 2 is formed by processing the inner surface having the diameter of φC of the upper surface protruding wall 3 when forming the upper surface protruding wall 3 or the like with the upper mold of the mold during forging and forming the lower surface protruding wall 4 with the lower mold. The inner surface with a diameter of φD was processed. Since the mold is formed so that the load applied to the upper die and the lower die at the time of the forging process is performed on the parting portion that is the mating surface of the upper die and the lower die, the upper surface protruding wall 3 of the through hole 2 and Since both the lower surface protruding walls 4 are cylindrical , the diameter of the substantially intermediate portion 7 is φB.
[0006]
The path computing unit, residual meat cause undue amount of material to flow smoothly to each unit of material needed to construct the burner cap during forging to machining are are in the mold. The through hole 2 at this time is in a state in which the upper surface protruding wall 3 and the lower surface protruding wall 4 do not pass through since the remaining wall exists as a film between the upper surface protruding wall 3 and the lower surface protruding wall 4.
[0007]
Therefore, in this parting portion, the through-hole 2 is formed only after the burner cap 1 is set in another mold after forging and the film is removed with a punch or the like provided in the upper die. Therefore, two molding processes must be performed before the burner cap has a predetermined shape.
[0008]
When the film is removed in this way, a slight amount of remaining meat remains in this portion due to the clearance between the upper and lower mold portions of the mold, and there is a processing burr in the portion of the substantially intermediate sentence 7 of the through hole 2. Exists. Therefore, blasting or cutting is performed as finishing.
[0009]
On the other hand, when the remaining part of the parting portion is removed by machining, for example, drilling, the post-processing after the same forging is performed, which increases the cost as in the above-described problem.
[0010]
[Means for Solving the Problems]
In order to solve the above-described conventional problems, the present invention has a burner cap having a flame hole in the periphery and a through-hole penetrating vertically in the center placed on a burner head that communicates the flame hole and the mixing tube. In the stove burner, the burner cap includes a main body part that forms a flame hole in the periphery thereof, a substantially cylindrical upper surface protruding wall having a through hole penetrating vertically in the center, and the through hole provided on the upper surface of the upper surface protruding wall. An opening opening smaller than the hole, an opening communicating with the through hole provided on the lower peripheral surface of the upper surface protruding wall, and a convex portion connecting the upper surface protruding wall and the main body portion across the opening, The burner cap performs a forming process by forging while leaving the hole of the opening, and then forms an opening by cutting, and a temperature sensor that detects the surface temperature of the object to be heated in the through hole of the burner cap. When installed The gap between the inner peripheral surface and the temperature sensor of the serial top projection wall a substantially uniform, is obtained so as to reduce the thermal influence from the flame by the substantially uniform hollow insulation space.
[0011]
According to the invention, since the size of the diameter of the opening hole of the through hole opened on the upper surface of the burner cap is narrower than the width of the other part forming the through hole, the opening hole is formed in the upper mold. Forge molding may be performed with a mold having a convex shape with a size equivalent to the size of the upper die and a concave shape corresponding to the convex shape of the upper die at the portion corresponding to the through hole portion of the lower die. The opening between the upper surface side and the lower surface side of the hole becomes the parting part of the upper die and the lower die during forging, but it becomes the terminal part of the flow of the material to be forged in the mold It can be processed with no remaining meat. This eliminates the need for various post-processing operations that have been applied to conventional through-hole processing, thereby reducing costs. Moreover, it is possible to prevent the boiling of the spilled material from the object to be heated placed on the stove and entering the inside of the through hole, thereby preventing the malfunction of the temperature sensor. Furthermore, it is possible to reliably detect the temperature of the object to be heated by reducing the thermal influence from the flame.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to a stove burner in which a burner cap having a flame hole in the periphery and a through-hole penetrating vertically in the center is placed on a burner head communicating with the flame hole and the mixing tube . A main body part that forms a flame hole in the periphery, a substantially cylindrical upper surface protruding wall having a through hole penetrating vertically in the center, an opening smaller than the through hole provided on the upper surface of the upper surface protruding wall, An opening communicating with the through hole provided on the lower peripheral surface of the upper surface protruding wall, and a convex portion that straddles the opening and connects the upper surface protruding wall and the main body, and the burner cap is a hole of the opening. by forging molding leave processing performed molding, then forming an opening by cutting, when fitted with a temperature sensor for detecting the surface temperature of the heated object to the through hole of the burner cap, before Symbol top protruding wall Inner surface and temperature sensor Sir and a substantially uniform gap, be implemented as a gas stove which is adapted to reduce the thermal influence from the flame by the substantially uniform hollow insulation space.
[0013]
Since the diameter of the opening of the through hole of the burner cap is narrower than the diameter of the other part forming the through hole, it passes through the through hole by setting the diameter of the opening. The amount of secondary air for combustion to be controlled can be controlled. In addition, since the through hole including the opening can be simultaneously processed when the burner cap is formed, the processing cost can be reduced. Moreover, it is possible to prevent the boiling of the spilled material from the object to be heated placed on the stove and entering the inside of the through hole, thereby preventing the malfunction of the temperature sensor. Furthermore, it is possible to reliably detect the temperature of the object to be heated by reducing the thermal influence from the flame.
[0014]
(Example)
Embodiments of the present invention will be described below with reference to the drawings. In addition, the same number is provided about the part which has the same function as the prior art, and description is abbreviate | omitted.
[0015]
1 to 5, reference numeral 10 denotes a stove burner in which the burner cap 1 is placed on the burner head 11, and the operation button 13 of the gas stove 12 on which the stove burner 10 is mounted is operated. Is supplied and ignited, a flame 14 is formed to start combustion, and at the same time, the article 15 to be heated is heated.
[0016]
In the substantially center of the stove burner 10, the through hole 2 of the burner cap 1, the through hole A16 of the burner head 11, and the opening 19 of the through hole B18 of the upper surface protruding wall 17 protruding to the upper surface side of the burner cap 1 are inserted. A temperature sensor 20 is configured which is used as means for sensing the heating state of the article to be heated 15 and controlling the fuel supply to the burner 10.
[0017]
Reference numeral 21 denotes a reduced portion of the opening 19 of the through hole B 18 on the upper surface side of the burner cap 1 of the upper surface protruding wall 17, and the opening 19 has a size within a range in which the temperature sensor 20 operates in the opening 19. Configured. Reference numeral 22 denotes a rigid body in which the temperature sensor 20 is fixed at a predetermined position of the stove burner 10, and reference numeral 23 denotes a lead wire 24 taken out from the temperature sensor 20, which is a nozzle for supplying fuel to the stove burner 10.
[0018]
The temperature sensor 20 has a configuration that can move up and down so as to reliably contact the object to be heated 15 and swing in the circumferential direction. It is is provided with the magnitude of the operating range than the temperature sensor 20. In the drawing, the diameter of the opening 19 is indicated as φF, the diameter of the convex portion 6 is indicated as φG, and the diameter of the upper surface protruding wall 3 is indicated as φH. 9 and size are indicated using the same symbols.
[0019]
In the above configuration, the operation button 13 of the gas stove 12 is operated and fuel is supplied from the nozzle 24 to the stove burner 10 to form a flame 14 in the flame hole 5 and burn. At the same time, the object to be heated 15 placed on the gas stove 12 is heated. At this time, the temperature sensor 20 provided by being inserted into the opening 19 from the through hole 2 of the stove burner 10 is configured to be kept in contact with the bottom surface of the object to be heated 15 and relates to the temperature of the object to be heated 15. Heating information is detected, and control such as stopping combustion of the burner 10 is performed based on the heating information.
[0020]
Accordingly, the temperature sensor 20 is required to reliably detect only the temperature information of the article 15 to be heated without being influenced by the surroundings (for example, the temperature of the atmosphere in which the temperature sensor 20 is provided). In the configuration of FIG. 12, the temperature sensor 20 is provided in this direction. Therefore, in order to prevent the temperature sensor 20 from being influenced by the surroundings, the upper surface protruding wall 17 is provided so as to cover the temperature sensor 20 in the surroundings so as not to be affected by the thermal effect from the flame 14.
[0021]
A means for manufacturing the burner cap 1 for obtaining the gas stove 12 as described above will be described.
[0022]
According to the invention, the width is narrowed portions than the other portions of the through hole 2 the width of the diameter of the opening port 19 from the through hole 2 which is open on the top side of the burner cap 1, above The mold is provided with a convex shape having a size equivalent to the size of the opening 9, and forging is performed with a mold in which a concave shape corresponding to the convex shape of the upper die is provided in a portion corresponding to the through-hole 2 portion of the lower die. The upper side and the lower side are the parting parts of the upper and lower molds during forging, but the remaining part is zero because it is the terminal part of the flow of the material to be forged in the mold. Can be processed.
[0023]
Or if it is set as a type | mold structure so that it may cut | disconnect in the convex mold part of an upper mold | type, and the concave mold part of a lower mold | type, it can be provided simultaneously with forge molding. When the burner cap 1 forms the opening 9 on the side surface 8 of the upper surface protruding wall 17, the entire shape of the burner cap 1 is formed by hot forging and the upper surface protruding wall 17 and the through hole 2 are provided. Are opened on a machine tool such as a lathe and cutting is performed up to the diameter of φE, so that the opening 9 is formed. The side surface 8 of the upper surface protruding wall 17 has the convex portion 6 and the upper surface protruding wall 17 by the convex portion 6. The burner cap 1 is integrally formed.
[0024]
Therefore, the various post-processing (drilling processing, plasting processing) etc. which were performed to the processing of the through-hole 2 and the opening hole 19 become unnecessary, and cost can be reduced.
[0025]
The constituent dimensional relationship of each part of the burner cap 1 forged and formed as described above is such that the diameter of the opening 19 is φF, the diameter of the convex part 6 is φG, and the diameter of the upper protruding wall 17 is The diameter dimension of the opening 9 is the same as that of the prior art, the diameter dimension of the opening 9 is φE, and the diameter dimension of the lower surface side is φD, so that φF <φG <φE <φD <φH.
[0026]
Therefore, a temperature sensor for detecting the temperature of the object to be heated 15 placed on the gas stove 12 is provided in the through hole 2 of the stove burner 10 in which the opening 9 leading to the through hole 2 is provided on the outer surface of the upper surface protruding wall 17. Therefore, the secondary air for combustion is satisfactorily supplied to each part from the opening 9, and good combustion is obtained. At the same time, the temperature sensor 20 is cooled by the secondary air flowing in the through hole 2, and only the object to be heated 15 is obtained. Therefore, the temperature sensor 20 reliably detects the temperature of the object to be heated 15.
[0027]
The gas stove 12 is inserted into the through-hole B18 of the burner cap 10 having the burner cap 1 provided with the reduced portion 21 in which the size of the opening 19 opened on the upper surface of the burner cap 1 is narrower than that of other portions. Is provided with a temperature sensor 20 for detecting the temperature of the object 15 to be heated, and is generally covered by a reduced portion 21 in which the inside of the through hole 2 is narrowed, and is placed on the gas stove 12. Thus, it is possible to prevent the spilled spilling from the heated object 15 and entering the inside of the through hole 2, thereby preventing malfunction of the temperature sensor 20.
[0028]
【The invention's effect】
As described above, according to the present invention, a through hole is formed with a diameter of the opening opening on the upper surface of the burner cap having a flame hole in the periphery and a through hole penetrating vertically in the center. Since it is narrower than the diameter of the other portion, the amount of secondary air for combustion passing through the through hole can be controlled by setting the aperture diameter. In addition, the processing cost can be reduced because the hole opening can be processed at the same time when the burner cap is forged.
[0029]
Also, a substantially cylindrical upper surface protruding wall is provided on the upper surface side of the flame hole of the burner cap, and there is a through hole penetrating from the lower surface side of the burner cap to the upper surface side at the center of the upper surface protruding wall. Since a reduced portion is provided in which the width of the opening hole on the upper surface side is narrower than the width of the other part forming the through hole , the opening hole is on the upper surface of the upper surface protruding wall, so that it is above the gas stove. The amount of penetration into the through-hole can be reduced even if the soup from the object to be heated is dropped after passing through the object to be heated. In addition, the gap between the inner peripheral surface of the upper protruding wall and the temperature sensor is made almost uniform, and the thermal effect from the flame is reduced by this almost uniform hollow heat insulation space. Can be improved.
[Brief description of the drawings]
FIG. 1 is an external view of a gas stove equipped with a stove burner according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the main part of the stove burner. FIG. 3 is a perspective view of a burner cap constituting the stove burner. A plan view of a burner cap constituting the same burner [FIG. 5] A sectional view of a burner cap constituting the same burner [FIG. 6] A plan view of a burner cap constituting the conventional burner [FIG. 7] A conventional burner Sectional view of burner cap that constitutes [Description of symbols]
DESCRIPTION OF SYMBOLS 1 Burner cap 5 Flame hole 9 Opening 10 Stove burner 11 Burner head 12 Gas cooker 17 Upper surface protrusion wall 18 Through-hole B
19 Opening Port 20 Temperature Sensor 21 Reduction Unit

Claims (1)

A burner cap having a flame hole in the periphery and having a through-hole penetrating vertically in the center is mounted on a burner head communicating with the flame hole and the mixing tube.
The burner cap has a main body part that forms a flame hole around it, a substantially cylindrical upper surface protruding wall having a through hole penetrating vertically in the center, and an opening smaller than the through hole provided on the upper surface of the upper surface protruding wall. A configuration having a hole opening, an opening communicating with the through-hole provided in the lower peripheral surface of the upper surface protruding wall, and a convex portion connecting the upper surface protruding wall and the main body portion across the opening,
The burner cap performs forming by forging while leaving the hole of the opening, and then forms an opening by cutting,
When a temperature sensor for detecting the surface temperature of the object to be heated is attached to the through hole of the burner cap, the gap between the inner peripheral surface of the upper surface protruding wall and the temperature sensor is made substantially uniform, and this substantially uniform hollow heat insulation A gas cooker designed to reduce the thermal effects of flames through space .

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