JP3335526B2 - Kitchen furniture - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to kitchen furniture provided with an appliance plug for adjusting the heating power of a gas combustor.
In particular, the present invention relates to a mounting structure of an induction plate for cooling an appliance plug of a built-in kitchen furniture.

[0002]

2. Description of the Related Art In recent years, as one of kitchen equipment, a built-in kitchen furniture in which a range-type oven having a plurality of gas burners at the top of an oven is incorporated in a system kitchen has become popular. In such built-in kitchen furniture, the temperature around the appliance plug, which controls the heat power of the gas burner, supplies and stops the fuel gas to the gas burner, is controlled by the hot air generated from the oven when the oven is used. The temperature becomes higher by about 20 ° C. to 30 ° C. than that of the one obtained by the method. As described above, when the temperature around the instrument plug becomes high, the specific gravity of the air inside the housing decreases, the weight of the air decreases, and the amount of primary air sucked into the venturi tube provided near the instrument stopper Will decrease.
Therefore, there occurs a problem that the combustion efficiency of the gas burner is reduced.

Therefore, conventionally, in order to prevent a problem caused by a rise in the temperature of the air around the appliance plug and the venturi tube, cooling air sucked from a ventilation hole formed in the housing of the built-in gas stove is guided to the appliance plug. 2. Description of the Related Art There is known a built-in kitchen furniture in which an induction plate for cooling an appliance plug is mounted inside a housing.

[0004]

However, in the conventional built-in kitchen furniture, the guide plate is fastened and fixed to a lower portion of the housing or a base plate fixed to the lower portion thereof by a fixing screw dedicated to fixing the guide plate. Therefore, the mounting operation of the guide plate becomes difficult, and if the fixing screw dedicated to fixing the guide plate is dropped into the bottom surface of the housing during the mounting operation, the fixing screw cannot be taken out due to the presence of the functional components of the housing. For this reason, there is a problem that malfunction of the functional component occurs due to interference between the fixing screw and the functional component of the housing. In addition, since the guide plate must be provided with an overhang for screwing such as a flange portion, the shape of the guide plate becomes complicated, and the material cost of the guide plate becomes high, which is a factor that increases the manufacturing cost. Is a problem.

[0005]

It is an object of the present invention to reduce the material cost of the guide plate by simplifying the shape of the guide plate, and to reduce the number of parts by eliminating fixing members such as fixing screws dedicated to fixing the guide plate. Another object of the present invention is to provide kitchen furniture that can reduce manufacturing costs by simplifying the operation of attaching the guide plate.

[0006]

According to a first aspect of the present invention, there is provided a housing having a communication hole communicating between the inside and the outside, and air and fuel gas installed inside the housing and flowing through the communication hole. And a gas combustor for combusting an air-fuel mixture supplied from the venturi tube, an instrument plug installed near the venturi tube inside the housing, and attaching the instrument plug. A technical means comprising an instrument plug attaching means and a guide plate which guides the air flowing from the communication hole to the venturi tube and the instrument plug and is locked by the instrument plug or the instrument plug attaching means. did.

According to a second aspect of the present invention, in addition to the kitchen furniture of the first aspect, the gas combustor is a gas burner installed on an upper part of a range-type oven, and the appliance plug attaching means includes: A manifold having a branch pipe for supplying fuel to the gas burner through the instrument plug, wherein the guide plate has an elastically deformable locked portion that is removably locked to an outer periphery of the branch pipe. It is characterized by the following.

According to a third aspect of the present invention, there is provided a housing having a communication hole communicating between the inside and the outside, and a Venturi pipe installed inside the housing and mixing air and fuel gas flowing from the communication hole. Having a gas combustor that burns the air-fuel mixture supplied from the venturi tube, an instrument plug installed near the venturi tube inside the housing, and instrument plug attaching means for attaching the instrument plug, Fixing means for fixing the instrument plug to the instrument plug attaching means, and a cooling air housed inside the housing and guiding cooling air flowing from the communication hole to the venturi tube and the instrument plug, and Technical means including a guide plate fixed by the fixing means in a state of being sandwiched between the instrument plug attaching means and the fixing means is adopted.

According to a fourth aspect of the present invention, in addition to the kitchen furniture of the third aspect, the gas combustor is a gas burner installed above a microwave oven, and the appliance plug attaching means includes: A manifold having a branch pipe for supplying fuel to the gas burner through the tool plug, the branch pipe having a mounting portion for mounting the tool plug at a tip end, and the guide plate including the tool plug. And a clamped portion clamped between the mounting portion of the branch pipe.

[0010]

According to the first aspect of the present invention, the cooling air sucked into the housing from the communication hole by the combustion of the gas combustor is guided to the guide plate and supplied to the appliance plug and the venturi tube. As a result, the instrument plug is cooled, and the temperature rise of the instrument plug is suppressed, and the temperature rise of the air sucked from the venturi tube is suppressed. As a result, the specific gravity of the air inside the housing increases, the weight of the air increases, and the reduction in the amount of air sucked into the venturi tube provided near the device plug can be suppressed, so that the combustion efficiency of the gas burner Can be suppressed.

Further, by locking the guide plate to the instrument plug or the instrument plug attaching means, the guide plate is fixed inside the housing without using a fixing member such as a dedicated screw for fixing the guide plate. This eliminates the need for a fixing member such as a fixing screw dedicated for fixing the guide plate, so that the number of components can be reduced and the mounting work for mounting the guide plate inside the housing is simplified. Since there is no need to provide an overhanging portion such as a flange portion for fixing a fixing member such as a fixing screw to the guide plate, the shape of the guide plate is simplified, and the material cost of the guide plate can be reduced. Cost can be reduced. Further, a fixing member such as a fixing screw does not fall into the housing during the mounting operation of the guide plate, so that malfunction of the functional component due to interference between the fixing member and the functional component of the housing is prevented. Can be.

According to the third aspect of the invention, the cooling air sucked into the housing from the communication hole by the combustion of the gas combustor is guided to the guide plate and supplied to the instrument plug and the venturi tube. In addition, the temperature of the instrument plug is suppressed by cooling the instrument plug, and the temperature of the air sucked from the venturi tube is suppressed. As a result, the specific gravity of the air inside the housing increases, the weight of the air increases, and the reduction in the amount of air sucked into the venturi tube provided near the instrument plug can be suppressed, so that the combustion efficiency of the gas burner can be reduced. Can be suppressed.

[0013] Further, the guide plate is fixed by fixing means for fixing the instrument plug to the instrument plug mounting means while the guide plate is sandwiched between the instrument plug and the instrument plug mounting means. The guide plate is fixed inside the housing without using a fixing member such as a dedicated screw. This eliminates the need for a fixing member such as a fixing screw dedicated for fixing the guide plate, so that the number of components can be reduced and the mounting work for mounting the guide plate inside the housing is simplified. And since there is no need to provide an overhang such as a flange for fixing a fixing member such as a fixing screw to the guide plate,
Since the shape of the guide plate is simplified and the material cost of the guide plate can be reduced, the manufacturing cost can be reduced. Further, a fixing member such as a fixing screw does not fall into the housing during the mounting operation of the guide plate, so that malfunction of the functional component due to interference between the fixing member and the functional component of the housing is prevented. Can be.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION

FIGS. 1 to 5 show a first embodiment of the present invention.
FIG. 1 is a view showing a main structure of a gas stove, and FIG. 2 is a view showing an entire structure of a microwave oven. The microwave oven 1 is a built-in kitchen furniture incorporated in a system kitchen, and includes an oven (cooking utensil) 2 for baking or steaming food through heat from above and below, and a gas stove 3 on an upper portion of the oven 2. Have.

Next, the gas stove 3 will be described with reference to FIGS. Here, FIG. 3 is a diagram showing the entire structure of the gas stove, and FIGS. 4 and 5 are diagrams showing the main structure of the gas stove. The gas stove 3 includes a housing 4, a plurality (for example, two) of gas burners 5, and a plurality (for example, 2).
), A device stopper 6, a manifold 7, a heat shield plate 8, a guide plate 9, and the like.

The housing 4 includes a stove body 13 fitted into a hole 12 formed in a countertop 11 of the system kitchen, and a top plate 14 assembled on the stove body 13. The stove body 13 is made up of a plurality of metal plates, and has an operation panel (front panel) 15 attached to the front surface.

The top plate 14 has a circular hole (not shown) corresponding to the two gas burners 5, and is locked to the hole edge of the countertop 11 via a packing 17. A vent hole 18 is formed in a lower portion of the operation panel 15 attached to the front surface of the stove body 13. The vent hole 18 is a communication hole for communicating the inside and outside of the stove body 13, and introduces, for example, primary air and secondary air necessary for combustion of the two gas burners 5 into the stove body 13. In order to perform this, it communicates with an inlet (not shown) formed in the lower part of the front surface of the stove body 13.

The double gas burner 5 is a gas combustor of the present invention, and includes a burner portion 21 having a large number of flame holes (not shown) and a venturi tube 22 integrally formed with the burner portion 21. Etc. The burner section 21 is a gas appliance that cooks food by burning a mixture of fuel gas and primary air mixed in the venturi tube 22 at a portion where a flame hole is formed between the burner head 20 and the burner head 20.

The venturi tube 22 is a mixing tube that mixes the secondary air and the fuel gas and supplies the mixture to the burner 21. A regulator (not shown) having an arc-shaped hole for sucking primary air and a damper plate (not shown) for adjusting the opening degree of the hole are provided at the upstream end of the venturi tube 22 by a spring (not shown). (Not shown). A nozzle (not shown) for injecting fuel gas into the Venturi tube 22 is inserted into the center of the upstream end of the Venturi tube 22.

The instrument stopper 6 is provided with an operation knob 23 by an operator.
Is a heating power adjusting means for igniting the gas burner 5, supplying and stopping the fuel gas, and adjusting the heating power of the gas burner 5 in accordance with the operation state of. A valve body such as a main solenoid valve and a safety valve for supplying and shutting off the fuel gas to and from the gas burner 5 is built in a device plug main body (valve body) of the device plug 6. A flange portion 6a as an attachment portion is integrally formed. The flange portion 6a has two through holes (not shown) through which fixing screws (not shown) (the fixing means of the present invention) penetrate.

In this embodiment, when the operation knob 23 is pushed in and turned to the left, the valve device is opened and the ignition operation of the gas burner 5 is performed. Further, by setting the operation knob 23 at a predetermined rotation position, adjustment of the amount of gas supplied to the gas burner 5 according to the rotation position of the operation knob 23, that is, adjustment of the heating power of the gas burner 5 is performed.

The manifold 7 is an instrument plug attaching means of the present invention, and includes one fuel pipe 25 connected to a gas pipe (not shown) and a forked branch pipe connected to two instrument plugs 6. (Locking portion) 26. The fuel pipe 25 is fastened and fixed to the upper ends of a plurality of mounting stays (not shown) fixed to the bottom surface of the stove body 13 by welding or the like using fixing members (not shown) such as fixing screws.

The branch pipe 26 is provided so as to protrude above the downstream end of the fuel pipe 25, and has a flange portion (a mounting portion of the present invention) 7a for mounting the instrument plug 6 at the upper end. I have. On the flange portion 7a, female screw portions 24 to which fixing screws (not shown) are screwed are formed at two places.

The heat shield plate 8 is manufactured by press-forming a single metal plate into a predetermined shape, and a fixing member such as a fixing screw (not shown) is provided on an upper end side of the stove body 13.
And is a member that shields heat generated by the combustion of the burner portion 21 from being transmitted to the inside of the stove body 13. The heat shield plate 8 has a flat top wall portion and both side wall portions suspended from both sides of the top wall portion.

The guide plate 9 is manufactured by press-molding a single metal plate into a predetermined shape, and the air flowing through the vent 18 is used to remove the instrument plug 6 and the venturi tube 2.
2 is a member for guiding to the second position. The guide plate 9 includes a flat top wall portion 31, a back wall portion 32 hanging down from a rear end portion of the top wall portion 31, and a back wall portion 32 forward of both side ends of the back wall portion 32. And both side wall portions 33 and the like bent so as to form a predetermined inclination angle.

The top wall portion 31 is formed with a substantially U-shaped locking hole 34 that is removably fitted to the outer periphery of the branch pipe 26. The top wall portion 31 is integrally formed with an arc-shaped upright wall portion (locked portion of the present invention) 35 which is elastically deformable at the hole edge of the locking hole 32. The standing wall portion 35 may be provided on the entire hole edge of the locking hole 34 or may be provided partially.

[Attaching Method of the First Embodiment] Next, the attaching method of the guide plate 9 of this embodiment will be briefly described with reference to FIGS.

After removing the top plate 14 from the upper end of the stove body 13 of the gas stove 3 on which the functional components except the guide plate 9 are assembled, the guide plate 9 is assembled to the forked branch pipe 26 of the manifold 7. Specifically, by fitting two locking holes 34 formed by two standing wall portions 35 integrally formed on the top wall portion 31 of the guide plate 9 to the outer periphery of the forked branch pipe 26, respectively, The guide plate 9 is assembled inside the stove body 13 with one touch.

[Operation of First Embodiment] Next, the operation of the oven 1 of this embodiment will be briefly described with reference to FIGS.

When the gas burner 5 of the gas stove 3 and the oven 2 located below the gas stove 3 are used, for example, 200 ° C.
Hot air of about 250 ° C. is generated. Thereby, the temperature inside gas stove 3 rises.

On the other hand, when the combustion of the gas burner 5 is started, cool primary air is introduced from the ventilation hole 18 opened on the front surface of the stove body 13, and this primary air flows around the appliance plug 6 by the guide plate 9. And flows into the vicinity of the Venturi tube 22. At this time, the instrument plug 6 and the fuel pipe 25 are cooled by the primary air, and the cold primary air is sucked into the venturi pipe 22 and efficiently mixed with the fuel gas injected from the nozzle. Thereby, the combustion efficiency of the gas burner 5 is improved.

[Effects of the First Embodiment] As described above, the forked branch pipe 26 provided at the downstream end of the manifold 7
Locking holes 34 respectively formed by two standing wall portions 35 integrally formed on the top wall portion 31 of the guide plate 9 on the outer circumference of the guide plate 9.
The guide plate 9 is fixed inside the stove body 13 without using a fixing member such as a dedicated screw for fixing the guide plate. This eliminates the need for a fixing member such as a fixing screw dedicated to fixing the guide plate, so that the number of components can be reduced and the work of attaching the guide plate 9 to the inside of the stove body 13 is simplified.

Since there is no need to provide an extension such as a flange for fixing a fixing member such as a fixing screw to the guide plate 9, the shape of the guide plate 9 is simplified, and the material cost of the guide plate 9 is reduced. Can be reduced to １ ／ or less, so that the production cost of the gas stove 3 can be reduced. Therefore,
It is possible to reduce the price of the range-type oven 1 having the low-cost gas stove 3 and further reduce the price of the system kitchen in which the inexpensive range-type oven 1 is incorporated.

Further, since a fixing member such as a fixing screw does not fall into the inside of the stove body 13 during the mounting operation of the guide plate 9, the functional component due to the interference between the fixing member and the functional component in the stove body 13. Can be prevented from malfunctioning. Therefore, it is possible to provide the gas stove 3 with high safety without malfunction.

[Second Embodiment] FIGS. 6 and 7 show a second embodiment of the present invention, and FIGS. 6 and 7 show the main structure of a microwave oven.

The guide plate 9 of this embodiment is a clamped portion which is clamped between the flange portion 6a of the instrument plug 6 and the flange portion 7a of the bifurcated branch pipe 26 provided at the downstream end of the manifold 7. And a back wall portion 42 suspended from the rear end of the top wall portion 41. The top wall portion 41 is formed with two rectangular through holes 43 that serve as fuel gas passages.

In this embodiment, the instrument plug 6 is fastened to the manifold 7 with the top wall 41 of the guide plate 9 interposed between the flange 6a of the instrument plug 6 and the flange 7a of the manifold 7. The guide plate 9 is fixed inside the stove body 13 without using a fixing member such as a dedicated screw for fixing the guide plate by tightening and fixing the top wall portion 41 with a fixing screw (fixing means) 27 for fixing. are doing. Reference numeral 28 denotes a screw hole formed in the flange portion 6a of the instrument plug 6.

In this embodiment, the back wall 42 of the guide plate 9 is installed so as to be located on the rear side of the manifold 7.
As shown in FIG. 8, the back wall 42 of the guide plate 9 is moved to the manifold 7 in accordance with the opening position of the ventilation hole 18 and the installation position of the instrument plug 6 and the venturi tube 22 in the stove body 13.
May be installed so as to incline forward from rear. Further, the top wall portion 41 and the back wall portion 42 of the guide plate 9 may be arranged as shown in FIGS. 9 and 10. These structures can be adopted in the first embodiment.

[Modification] In each of the above embodiments, the present invention is applied to the range-type oven 1 incorporated in a system kitchen. However, the present invention is applied to a range-type oven installed alone in a room such as a kitchen. May be. The oven 2 may be an electronic oven or a gas oven. Further, the present invention may be applied to a kitchen apparatus in which cooking equipment such as a grill is installed below a gas stove. In each of the above embodiments, the two gas burners 5 of the gas stove 3 are used as the gas burners, but a gas burner of a gas cooker or the like may be used as the gas burners.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main structure of a gas stove (first embodiment).

FIG. 2 is a schematic view showing the entire structure of a microwave oven (first embodiment).

FIG. 3 is a schematic view showing the entire structure of a gas stove (first embodiment).

FIG. 4 is a schematic view showing a main structure of a gas stove (first embodiment).

FIG. 5 is a schematic view showing a main structure of a gas stove (first embodiment).

FIG. 6 is a perspective view showing a main structure of a gas stove (second embodiment).

FIG. 7 is a schematic view showing a main structure of a gas stove (first embodiment).

FIG. 8 is a schematic diagram illustrating a positional relationship between a guide plate and a manifold (a modified example).

FIG. 9 is a schematic diagram showing a positional relationship between a guide plate and a manifold (modification).

FIG. 10 is a schematic diagram showing a positional relationship between a guide plate and a manifold (modification).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Range oven (kitchen furniture) 2 Oven 3 Gas stove 4 Housing 5 Gas burner (Gas burner) 6 Instrument plug 7 Manifold (Instrument plug attaching means) 9 Guide plate 18 Vent hole (communication hole) 22 Venturi tube (mixing tube) 26 Branch pipe (locking section) 27 Fixing screw (fixing means) 35 Standing wall section (locked section) 41 Top wall section (clamped section) 6a Flange section 7a Flange section (mounting section)

────────────────────────────────────────────────── ─── Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F24C 15/34 F24C 15/08 F24C 3/00-3/14 A47J 37/06

Claims (4)

(57) [Claims] (A) a housing having a communication hole communicating between the inside and the outside; and (b) a Venturi tube installed inside the housing and mixing air and fuel gas flowing from the communication hole. A gas combustor for burning an air-fuel mixture supplied from the Venturi tube; (c) a device plug installed near the Venturi tube inside the housing; and (d) a device for attaching the device plug. A kitchen furniture comprising: a plug attaching means; and (e) guiding the air flowing from the communication hole to the venturi tube and the instrument plug, and a guide plate locked by the instrument plug or the instrument plug attaching means. . 2. The kitchen furniture according to claim 1, wherein the gas burner is a gas burner installed on an upper part of a microwave oven, and the appliance plug attaching means is connected to the gas burner via the appliance plug. A kitchen furniture having a branch pipe for supplying fuel, wherein the guide plate has an elastically deformable locked portion that is removably locked to an outer periphery of the branch pipe. (A) a housing having a communication hole communicating the inside and the outside; and (b) a Venturi tube installed inside the housing and mixing air and fuel gas flowing from the communication hole. A gas combustor for burning an air-fuel mixture supplied from the Venturi tube; (c) a device plug installed near the Venturi tube inside the housing; and (d) a device for attaching the device plug. (E) fixing means for fixing the instrument plug to the instrument plug attaching means, and (f) the cooling air housed in the housing and flowing from the communication hole and flowing through the venturi tube and the instrument. A kitchen furniture comprising a guide plate guided by a stopper and fixed by the fixing means while being sandwiched between the appliance plug and the appliance plug attaching means. 4. The kitchen furniture according to claim 3, wherein the gas burner is a gas burner installed on an upper part of a microwave oven, and the appliance plug attaching means is connected to the gas burner via the appliance plug. A manifold having a branch pipe for supplying fuel, wherein the branch pipe has a mounting portion for mounting the instrument plug at a distal end thereof, and the guide plate includes a fitting section for mounting the tool plug and the branch pipe. Kitchen furniture having a sandwiched portion sandwiched therebetween.