JPH05113225A - Door of heating and cooking device - Google Patents

Abstract

PURPOSE:To prevent a counter from being scorched and a top plate of a heating and cooking device from being heated by a method wherein a heat shielding piece projected inwardly is arranged at an inner upper part surface of a door of the heating and cooking device. CONSTITUTION:A heat shielding piece 11 projected inwardly is arranged at an inner upper part of a door 2. The heat shielding piece 11 is integrally formed at an upper edge of a rear plate 12 of the door or fixed to it by spot welding or the like to make its integral formation. Both end corners at the inner edge of it are cut to form a heat releasing part 3. Accordingly, even in the case that a cooking table 3 is not completely pushed into a predetermined position and an opening of the door produces a certain clearance, hot air within the cooking chamber may not be discharged from its upper part, but dispersed from the clearance at the side part of the opening and discharged and then the temperature of the discharged gas is reduced under an action of air sucking operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a door of a cooking device such as a grill or an oven.

[0002]

2. Description of the Related Art A heating cooker such as a grill or an oven having a drawer type structure in which a front door and an internal cooking table are integrated is well known. It is designed to be heated and cooked with the front opening completely closed by the door. However, due to the carelessness of the user, the cooking table may be cooked without being pushed to a predetermined position. At this time, the front opening is not completely closed, so hot air leaks from the gap. It will be. For this reason, when the heat is strong, a large amount of very high temperature exhaust gas may be discharged from the gap depending on the size of the gap.For example, in a system kitchen with a grill built in the cooking table The lower side of the front edge of the counter provided may be abnormally heated and burned, and the risk of burns and fires was high.

FIG. 4 is an explanatory view of this situation, in which 1 is a grill, 2 is a door, 3 is a table to be cooked, 4 is a counter, 5 is an upper burner, and 6 is a lower burner. When the table 3 to be cooked is completely pushed in to a predetermined position, the door 2 is in the position of the solid line and is in contact with the front surface 1a of the grill, but when it is pulled out a little to form the chain line, the gap 7 is formed. The hot air in the grill 1 is discharged as indicated by arrow A, and the front edge 4a of the counter is heated.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of such a point, and an object thereof is to prevent high temperature exhaust gas from being discharged from a gap between openings.

[0005]

In order to achieve the above-mentioned object, the door of the heating cooker of the present invention is provided with a heat shield piece projecting inward in the upper part of the inner surface thereof. It is desirable to form hot air discharge parts at both ends of this heat shield.

[0006]

[Function] When the table to be cooked is not pushed all the way to the back and is slightly in front of the predetermined position, the upper surface of the opening is covered with the heat shield so that the hot air inside is directly upward. It will not leak out and will be discharged from the gap on the side of the opening while drawing in cool air around it.
As a result, the temperature of the exhaust gas will not drop and the counter will not burn and the top plate of the equipment will not overheat, and there will be no risk of burns or fire. Further, in the case where the hot air discharge portions are formed at both ends of the heat shield piece, the hot air is discharged not only from the side but also from the hot air discharge portion, the heat is dispersed, and the temperature of the exhaust gas becomes further lower.

[0007]

Embodiment An embodiment shown in the drawings will be described below. The same parts as those in FIG. 4 are designated by the same reference numerals. In FIGS. 1 and 2, reference numeral 11 denotes a heat shield, which is provided on the upper portion of the inner surface of the door 2 so as to project inward. This heat shield piece 11 is integrally formed on the upper edge of the door back plate 12 as shown in FIG. 2, or is attached by spot welding or the like to be integrated, and the corners at both ends of the inner edge are as shown in the figure. A hot air discharge portion 13 is formed by cutting out. A front decorative plate, a handle, glass, etc. (none of which are shown) are appropriately assembled to the door back plate 12 to configure the door 2, and further the cooked table 3 is integrally attached.

FIG. 1 is an explanatory diagram of the operation. (a) shows a normal use state, in which the door 2 is in the position of the solid line and is in contact with the grill front surface 1a, and the front opening is completely closed so that hot air does not leak. (b) is the cooking table 3
Is not fully pushed to a predetermined position, and the upper part of the front grille 1a is still blocked by the heat shield 11. However, a gap between the front grille 1a and the door 2 is already formed on the side of the front grille 1a. 7 has occurred. Therefore, the hot air inside is stopped by the heat shield 11 as shown by the arrow B and is not discharged from the upper part, but is bypassed from the heat shield 11 and discharged from the side of the door 2 as shown by the solid arrow C. The outside air is also drawn in at the same time and moves together with the exhaust gas as indicated by the dashed arrow D.

As described above, since the exhaust gas is dispersed on both sides of the door 2 and the outside air is mixed, the temperature of the exhaust gas is lowered, and the front edge 4a of the counter 4 is not overheated even in an abnormal condition. is there. Even if the heat shield 11 is formed with the same width up to the end without forming the hot air discharge portion 13, the temperature of the exhaust gas is lowered, but the formation of the hot air discharge portion 13 is indicated by arrow E in FIG. As described above, the high temperature exhaust gas in the center is dispersed to the left and right, and the action of drawing in air is also promoted, so that the temperature of the exhaust gas can be further reduced.

By the way, when the temperature of the exhaust gas discharged from the gap between the front grille 1a and the door 2 was measured by changing the size of the gap, the maximum was 22 in the conventional example without the heat shield.
While the temperature was 0 ° C., the temperature was 130 ° C. at the maximum when the heat shield 11 was provided as in the example, confirming the effect of the present invention. As the hot air discharge part, other structures such as forming through holes of appropriate sizes at both ends of the heat shield piece 11 can be adopted, but both inner edge ends of the heat shield piece 11 as in the embodiment. When the hot air discharge portion 13 is formed by cutting out the cutouts, the corners of the heat shield pieces 11 do not get in the way when the cooked food table 3 is pulled out from the grill and the cooked food is taken in and out, which is convenient.

FIG. 3 shows another embodiment, in which side plates 14 each having a wider width are provided inwardly on both side edges of the door 2. As a result, when the table 3 to be cooked is at a slightly front position and a gap 7a is formed in the lower part of the side plate 14, outside air enters from here as indicated by an arrow F, and exhaust gas from above is exhausted. The effect of lowering the temperature is further promoted.

[0012]

As is apparent from the above-described embodiments, the present invention is provided with the heat shield piece projecting inwardly on the upper inner surface of the door of the heating cooker. Therefore, even if the cooking table is not pushed all the way to the specified position and there is a gap in the opening, the hot air inside will not be exhausted from above and will be dispersed from the gap on the side of the opening. The temperature of the exhaust gas becomes low due to the effect of drawing in air. For this reason, there is no possibility of burning the counter or overheating the top plate of the appliance, and there is no risk of burns or fire, and safety is improved. Further, by forming the hot air discharge portions at both ends of the heat shield piece, the above-described action is promoted and the temperature of exhaust gas can be further reduced.

[Brief description of drawings]

FIG. 1 is a side view of an essential part showing the operation and schematic structure of one embodiment of the present invention.

FIG. 2 is a perspective view of a door back plate of the embodiment.

FIG. 3 is a side view of a main part of another embodiment.

FIG. 4 is a side view showing an operation and a schematic structure of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Grill 2 Door 3 Cooking target table 4 Counter 7, 7a Gap 11 Heat shield 13 Hot air discharge part 14 Side plate

Claims (2)

[Claims] 1. A door of a heating cooker, characterized in that a heat shielding piece protruding inward is provided on an upper portion of an inner surface of the door. 2. The door of the heating cooker according to claim 1, wherein hot air releasing portions are formed at both ends of the heat shield.