JPH0642764A - Drop-in cooking stove - Google Patents

Abstract

PURPOSE:To prevent flow-off of a flame by forming an air suction opening at the bottom of a body case, and arranging shut-off plates at a predetermined interval under the case. CONSTITUTION:An air suction opening 5 is formed at the bottom of a body case 1, and shut-off plates 11 are arranged at a predetermined interval G under the case 1. A wind pressure generated at the time of opening and closing a door E of a containing chamber is linearly operated as an instantaneous pressure wave, but since the opening 5 is covered with the plates 11 provided at the interval G, an air flow generated by the pressure so acts in the case 1 as to be attenuated by a resistance in the case of passing the gaps G. Thus, thermal influence on the chamber can be prevented, and blow-off of a flame at the time of opening and closing the door E of the chamber can be allowed to scarcely occur.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a drop-in stove, in particular,
The present invention relates to a drop-in stove in which a main body case is dropped and fixed from the opening of a countertop toward a storage chamber.

[0002]

2. Description of the Related Art In a sink or the like equipped with a drop-in stove of the above type, in order to prevent the influence of heat on a lower storage chamber and to prevent spillage into the storage chamber, for example, As disclosed in JP-A-62-272022, the storage chamber and the drop-in stove are hermetically partitioned.

However, a main body case accommodating a combustion section and a control mechanism section is inserted into an opening formed in the counter top, and the main body case is hung from the peripheral edge of the opening, and a top plate is capped on the main body case. , In the case of the type in which the operation panel is provided on the top plate, the front surface of the main body case is sealed, so that the combustion air is taken in from the front surface of the main body case as in the prior art. I can't. As a result, some combustion air must be taken in from the storage chamber side below the main body case.

However, only by forming an opening for taking in air on the bottom surface of the main body case in this way, the heat radiated downward from this opening may cause an influence in the storage chamber, and the storage chamber can also be affected. The inconvenience arises that the wind pressure generated by the opening and closing of the door directly acts on the combustion section from the opening, and the flame blows off. The present invention has been made in view of the above point, and "a main body case equipped with a combustion part is fixed by dropping it from the opening of the counter top to the storage chamber side and having an operation part. In the case of a drop-in stove that is capped on a case, thermal effects are less likely to occur in the storage room below the drop-in stove installation section, and flames in the combustion section are less likely to be extinguished by the wind pressure generated by opening and closing the storage room door. The task is to ensure that

[0005]

[Technical Means] A technical means of the present invention for solving the above-mentioned problem is to form an opening (5) for air intake in the bottom surface of a main body case (1), and a heat shield plate below the main body case. (11) is arranged at a predetermined interval (G). '

[0006]

The above technical means operates as follows. During use of the stove, the bottom surface of the main body case (1) is heated by conduction heat and radiant heat from the internal combustion device. Then, radiant heat and the like from now on are blocked by the heat shield plate (11). Radiant heat acting directly on the storage chamber through the opening (5) is also blocked by the heat shield plate (11). Combustion air is taken into the main body case (1) through the opening (5) from the storage chamber through the gap (G) between the heat shield plate (11) and the bottom surface of the main body case (1).

The wind pressure generated when the door of the storage chamber is opened and closed acts linearly as an instantaneous pressure wave, but the opening (5) has a heat shield plate (11) provided at a predetermined interval (G). Since it is covered by the pressure, the air flow generated by this pressure acts inside the main body case (1) in a manner greatly attenuated by the resistance when passing through the gap (G), and the pressure wave is released from the opening. Is less likely to be affected by the wind pressure on the combustion part due to the opening and closing of the door, as compared with the case where is directly applied.

[0008]

[Effect] The heat from the main body case (1) is blocked by the heat shield, and the influence of wind pressure on the combustion part due to the opening and closing of the door is less likely to occur, so the thermal effect on the storage chamber can be prevented. At the same time, it is possible to prevent the flame from being blown out by opening and closing the door of the storage chamber.

[0009]

Embodiments of the present invention described above will now be described in detail with reference to the drawings. The drop-in stove of this embodiment is shown in FIG.
And as shown in Figure 5, countertops such as sinks
The main case (1) is hung from the opening (K) formed in (T), and the top plate (2) slightly protruding from the top of the countertop (T) is installed as shown in the figure. The operation part is concentrated on the right side of the front part of the
(A) and (B) are provided with a grill stove section (C) behind the operation section, respectively.

As shown in FIG. 2, this drop-in stove has a top plate (2) covering the top open portion of a flat rectangular box-shaped main body case (1) having an open upper end, and the main body case (1). Heat shield plate with a certain gap (G) from the bottom of the
It is configured to have (11), and the flange portion (12) protruding from the open end of the main body case (1) has a countertop (T).
The whole is suspended by engaging with the opening (K) formed in the.

In the main body case (1), the stove burners (13) and (14) corresponding to the stove sections (A) and (B) and the grill stove section (C) are provided.
There is provided a grill burner (15) corresponding to the above, and a controller room (16) incorporating control devices corresponding to the operation section. The stove portions (A) and (B) both have a configuration in which the flame holes arranged in an annular shape open inward, and an annular straightening plate (13a) is formed above the flame holes with a certain interval therebetween. (14a) is provided. This straightening plate exerts the function of smoothing the supply of the secondary air to the flame holes and the function of preventing the heating of the top plate (2). The grill burner (15) has flame holes arranged in a rectangular ring above the open end of a rectangular water tray (15b) that opens upward, and sets the opening direction of these flame holes to the inside in the horizontal direction. Rectangular annular flow-rectifying plate (15a) that has the same function as above above the part
Is provided. The inner peripheral edges of these straightening vanes are arranged so as to coincide with the flame hole portions of the corresponding burner or to be located on the inner peripheral side thereof.

The body case (1) is provided with a stove burner (13) (14).
The auxiliary case (1a) with the built-in grill grill (15) is housed in the outer case (1b) .The auxiliary case (1a) has a cut wall surface (D) at the left rear part and a right front part. It is a box body that is largely cut out, and a partition wall (17) having an inverted U-shaped cross section that partitions the inside into left and right is formed in the central part, and the partition wall (17) is located from the middle to the right. A partition wall (18) having a similar cross section is extended and formed in the upper open chamber (10a) formed on the left side of this partition wall (17).
3) (14) is accommodated and arranged, on the right side of the partition wall (17) and also on the partition wall
The grill burner is placed in the empty space (10b) formed on the rear side of (18).
(15) is housed. Then, when this auxiliary case (1a) is housed in the exterior case (1b), an empty room is formed on the right side of the partition wall (17) and on the front side of the partition wall (18), and this empty room is the controller room. (16) Also, cut wall surface (D) and exterior case
The intermediate cock (3) is housed in a triangular chamber formed between the corner portion (1b) and the corner portion.

An intermediate cock (3) is provided in the controller room (16).
Valve device connected to the gas introduction pipe from the and electrical components for controlling these valve devices, further, a battery case that serves as a power source of these electrical components is built-in, from each of the valve device a burner (13) ( 14) and grill burner (15)
Gas connected to. The controller chamber (16) is provided with a protective plate (19) that is inclined so as to rise from the rear to the front, and an operating shaft of the valve device or a battery is provided through an opening between the protective plate (19) and the flange (12). The open end of the cylindrical main body (41) for accommodating the battery in the case is exposed. In addition, a large number of small holes (16a) (16a) are opened in the front part of the exterior case (1b) which is the front wall of the controller room (16), and the air cooling effect in the controller room (16) is achieved. Promote.

A heat shield plate (11) is continuously provided below the main body case (1) accommodating the above respective parts. The heat shield plate (11) is a metal plate set to have a size substantially matching the bottom surface of the main body case (1), and a rising portion (11a) wraps around the periphery. Then, a pair of mounting pieces (11b) (11b) is extendedly formed on each short side, and the upper end is fixed to the short side wall of the outer case (1b) by screwing.

The top plate of the main body case (1) is provided with a top plate.
(2) is crowned, but the top plate (2) has circular openings (2a) (2a) (2a) (2) corresponding to the stove burners (13) (14), as shown in FIG.
While b) is formed, a rectangular opening (2c) corresponding to the grill burner (15) is formed. A skirt part (21) of a certain height goes around the periphery of the top plate (2), but the control room (16)
The portion corresponding to is the operation panel (21a) extended upward from the other portions, and the operation panel (21a) is formed with an opening for each operation shaft protruding from the controller chamber (16). An opening is formed in accordance with the cylinder main body (41) for accommodating the battery, and an operation knob is attached to each operation shaft,
When the cap (42) is attached to 1), these openings are closed. In addition, the upper surface of the operation panel (21a) that follows the upper rear is an inclined surface (22), and the top plate (2) is attached to the main body case (1).
In the state of being crowned with, it becomes parallel to the protective plate (19) of the controller room (16).

In the drop-in stove having the above structure, the heat shield plate (11) is attached to the main body case (1) and fitted to the peripheral edge of the flange portion (12) as shown in FIGS. The packing (P) is in contact with the countertop (T) to support the outer case (1b), and the opening of this countertop (T)
The entire body case (1) projects downward from (K). In this state, the pipe hole (31) formed in the heat shield (11) and the outer case
Gas is piped to the gas inlet of the intermediate cock (3) through the pipe hole (32) formed in (1b). A flexible metal pipe (33), such as a metal bellows pipe, is adopted for this gas pipe, and the flexible metal pipe (3) is inserted through the wall surface (W) of the sink installation portion.
Storage room where 3) is formed below the countertop (T)
(S), then its tip is the intermediate cock (3).
Will be connected to the gas inlet.

After the piping is finished, the top plate (2) is capped on the open upper end of the main body case (1). At this time, the peripheral edge of the skirt portion (21) is the peripheral edge of the packing (P). Is externally mounted on the stepped part of. A soup saucer (23a) is provided around the opening (2a) on the top surface of the top plate (2), and a soup saucer (2a) is provided around the opening (2b).
3b), soup saucers (23C) are formed on the outer periphery of the opening (2c), and these soup saucers are further depressed from the surface of the top plate (2). Therefore, between the soup saucer (23a) and the soup saucer (23b) and the soup saucer (23C), the top surface part (24) extending in the front-back direction of the top plate (2) is provided. A top surface portion (25) following the top surface portion (24) is formed on the front edge side in the left-right direction. And the top surface portion (24) and the top surface portion (25)
The arrangement positions of the partition wall (17) and the partition wall (18) are aligned with each other, and in particular, the top surface portion (24) between the juice trays is
As shown in FIG. 4, the distance between the side walls continuing from the back surface of the
It matches the width of (17). Therefore, when the top plate (2) is attached to the main body case (1), the U-shaped section of the back surface of the top surface part (24) fits on the top of the partition wall (17), while the partition wall
The rear end surface of (18) is in contact with the front edge side wall of the juice tray (23C), and the top plate (2) is reliably positioned with respect to the main body case (1).

Further, in this embodiment, as shown in FIGS. 5 and 6, the bottom surface and the peripheral side of the auxiliary case (1a) constituting the main body case (1) and the bottom surface and the peripheral side of the exterior case (1b). There is a certain space (G) between the outer case and the outer case (1b).
A constant space is provided between the bottom surface of the and the heat shield plate (11).
Further, the stove burners (13) and (14) are housed in the auxiliary case (1a), and the grill burner (15) is housed. Therefore, heat from each burner is insulated by this double structure, and heat transfer to the counter top (T) as well as to the storage chamber (S) of the sink is surely insulated.

Further, the air in the storage chamber (S) is supplied to each burner in the main body case (1) as a part of the combustion air. Therefore, at the bottom of the auxiliary case (1a), Burner
(13) A first opening (51) is formed below the installation portion of (14) and below the installation portion of the grill burner (15) as shown in FIG. A large number of relatively small second openings (52) (52) are annularly arranged on the outer peripheral portion of the bottom portion below the first opening (51). Therefore, the air in the storage chamber (S) passes through the gap between the heat shield plate (11) and the bottom of the outer case (1b) to the second chamber.
Combustion air is supplied from the openings (52) (52) to the corresponding burner portions through the first openings (51). Both openings function as openings (5) in the claims.

There is a possibility that radiant heat from each burner will act on the bottom of the outer case (1b) from these openings, but this radiant heat is blocked by the heat shield plate (11). Further, even if the temperature of the main body case (1) rises to some extent due to some circumstances, the radiant heat from this will be blocked by the heat shield plate (11). Since the storage chamber (S) has an opening / closing door (E) in front of it, the pressure in the storage chamber (S) changes momentarily when the door is opened and closed. The change is the distance (G) between the heat shield (11) and the outer case (1b), the second
It reaches the combustion section through the opening (52) and the first opening (51),
Since the pressure transmission path is complicatedly bent, it is difficult for the pressure change to directly act. In other words, the instantaneous air flow caused by the pressure change is significantly damped by the resistance of this part during its passage through the path. Particularly, in this embodiment, the storage chamber below the heat shield plate (11)
The pressure change in (S) is as follows: the heat shield plate (11) and the outer case (1
The second openings (52) (52) are reached through the space with b), and thereafter,
The first openings (51) (51) that are located off these second openings
Since the pressure change reaches the combustion part through a large number of stages, the change in the pressure reaches the combustion part, and the influence of the pressure change is extremely unlikely to occur.

Further, since the space (G) between the heat shield plate (11) and the outer case (1b) is open all around, extremely slow air circulation when the combustion air is supplied. In case of
(G) can secure a sufficient flow rate required in this part even with a very small gap. On the other hand, when a large and instantaneous pressure wave is generated due to the opening and closing of the door (E), the local air flow generated due to the propagation of this pressure wave becomes extremely fast, and When the airflow propagates through the interval (G), it will be decelerated while propagating through the interval (G).

Therefore, when the interval (G) is set to the minimum interval for supplying the combustion air, the blowout prevention effect becomes extremely effective.

[Brief description of drawings]

FIG. 1 is an external view of an embodiment of the present invention.

[Figure 2] Exploded view

FIG. 3 is a sectional view taken along line XX.

[Fig. 4] Relationship between the top plate (2) and the partition wall (17)

FIG. 5 is a sectional view taken along line YY.

FIG. 6 is a relational diagram of the first opening (51) and the second opening (52) (52).

[Explanation of symbols]

 (1) ・ ・ ・ Main body case (5) ・ ・ ・ Opening (11) ・ ・ ・ Heat shield (1a) ・ ・ ・ Auxiliary case (1b) ・ ・ ・ Exterior case (51) ・ ・ ・ First opening ( 52) ... Second opening

Claims (2)

[Claims] 1. A drop-in stove of a type in which a main body case equipped with a combustion section is dropped from an opening of a countertop to a storage chamber side and fixed, and a top plate provided with an operating section is crowned to the main body case. A drop-in stove in which an opening (5) for taking in air is formed at the bottom of the main body case (1), and a heat shield plate (11) is arranged below the main body case at a predetermined interval. 2. A main body case (1) is composed of an auxiliary case (1a) having a built-in combustion part and an outer case (1b) fitted to the auxiliary case (1a) so that at least bottom surfaces thereof have a constant gap. The opening (5) is composed of a first opening (51) formed on the bottom surface of the auxiliary case (1a) and a second opening (52) provided on the bottom surface of the outer case (1b) at a position deviated from the first opening (51). The drop-in stove according to claim 1.