JP3492520B2 - Grilling equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grill apparatus having a grill pan to be poured below a grill and a temperature sensor for detecting that the water in the grill pan has decreased below a predetermined amount.

[0002]

2. Description of the Related Art As the conventional grilling apparatus, for example, known from Japanese Utility Model Laid-Open No. 3-88432, a temperature sensor biased upward is arranged in the bottom of the grill. On the other hand, a sensor is provided in which a grill pan that slides on the bottom surface of the grill cabinet and can be put in and taken out is provided, a part of the bottom side of the bottom of the grill pan is raised, and the temperature sensor abuts from below with the grill pan stored in the grill cabinet. It forms an abutting part. In such a grill device, the amount of water that the sensor contact portion is submerged in is put into the grill pan for grill cooking, but during the cooking, the water is evaporated and the water is reduced. Since the sensor contact portion is raised above the other part of the bottom surface of the grill pan, when the water decreases, the upper surface of the sensor contact portion will not be flooded. Then, the rate of increase in the temperature detected by the temperature sensor increases from the time when the sensor contact portion is no longer flooded. Then, when the detected temperature exceeds the predetermined temperature, it can be known that the water in the grill pan has decreased to a predetermined amount or less before the water in the grill pan completely disappears.

By the way, the reason for pouring water into the grill pan is
This is to prevent burning of the juice in the grill pan and to prevent the temperature inside the grill from rising during cooking.However, if steam around the food is filled with water vapor due to evaporation, the food will be steamed and the food will be cooked. There is a problem that the taste is impaired depending on the type. Therefore, for example,
As is known from Japanese Patent No. 44307, there is known one in which an upper plate for covering water in a grill pan is provided to prevent steam from being filled around the food.

[0004]

SUMMARY OF THE INVENTION In the above-mentioned conventional apparatus in which a temperature sensor is brought into contact with a sensor abutting portion formed on the grill pan and water reduction in the grill pan is detected from the temperature detected by the temperature sensor, the water abutment sensor abuts. Even if the part is not flooded, heat is radiated from the sensor contact part to the surrounding water because there is water in the immediate vicinity of the sensor contact part. Therefore, there is a problem that the detected temperature does not rise to a predetermined temperature unless the water is reduced to some extent from the state where the sensor contact portion is not submerged, and the fact that the water is reduced cannot be detected. It should be noted that if the area of the sensor abutting portion is widened, the rate of temperature rise after the state of no flooding can be increased, but this is not preferable because the water pouring capacity in the grill pan is reduced.

In view of the above problems, it is an object of the present invention to provide a grill device which can immediately detect that the water in the grill pan has decreased below a predetermined amount.

[0006]

In order to solve the above-mentioned problems, the present invention relates to a grill apparatus provided with a grill pan which is installed below a grill for holding food in a grill cabinet and which is filled with water. An upper plate that covers the water surface inside is held by a grill pan, and a horizontal flat portion that forms a gap at a predetermined distance from the water surface is formed in a predetermined area of the upper plate, and a sensor plate that is connected to the flat portion is formed on the upper plate. A temperature sensor that forms a contact portion and abuts on the sensor abutting portion is disposed in the grill cabinet to detect that the water in the grill pan has decreased to a predetermined amount or less from the temperature detected by the temperature sensor. Characterize.

The flat portion formed on the upper plate is not in contact with the water surface, but after a lapse of a predetermined time from the start of grill cooking, the water in the grill pan boils and the water surface shakes greatly or the bubbles burst due to boiling. Sometimes splashes,
Hot water splashes on the bottom surface of the flat part. Since the hot water does not exceed 100 degrees, the flat part is cooled by the hot water.
To be kept in degrees. Since the sensor contact portion is formed integrally and continuously with the flat portion, the flat portion acts as a heat dissipation plate, and the temperature of the sensor contact portion does not exceed 100 degrees. When the water in the grill pan evaporates and the amount of water in the grill pan decreases to a predetermined amount or less, the distance between the lower surface of the flat portion and the water surface increases, and the lower surface of the flat portion is not covered with hot water. Then,
On the contrary, the flat portion acts as a heat collecting plate from the moment the hot water is no longer applied, and conducts the collected heat to the sensor contact portion. Therefore, the temperature detected by the temperature sensor in contact with the sensor contact portion rapidly rises. In this way, since the flat part of the upper plate switches from the one functioning as the heat dissipation plate to the sensor contact part to function as the heat collecting plate at the time when the hot water does not reach the bottom surface of the flat part, The change in the temperature detected by the temperature sensor changes abruptly, and it is possible to notice the time when the temperature changes.

The flat portion may be formed over the entire surface of the upper plate, but the cooling portion is lower than the flat portion, and even if the lower surface of the flat portion is not exposed to water by evaporation, the lower surface of the cooling portion remains It may be soaked in hot water or splashed with hot water so that the temperature of the cooling part where oil or the like is likely to accumulate because it is lower than the flat part does not rise. It is desirable that the cooling portion is formed at a position apart from the sensor contact portion to some extent so that the thermal influence of the cooling portion does not affect the sensor contact portion.

By the way, when the temperature sensor is arranged upward on the bottom surface in the grill chamber, the sensor contact portion can be extended from the flat portion and the sensor contact portion can be formed horizontally. Therefore, the height of the grill pan that stores the upper plate can be reduced. Further, the temperature sensor is arranged inwardly on the peripheral surface of the inside of the grill, and a vertical wall portion rising from the side edge of the flat portion is formed on the upper plate. Then,
Although the height of the vertical wall increases, the radiant heat from the burner can be prevented from directly acting on the temperature sensor even if the grill pan is temporarily taken out from the grill during cooking, for example. still,
Even if the temperature sensor is arranged inward on the peripheral surface in the grill cabinet, and a vertical sensor contact portion that extends from the flat portion and hangs outside the grill pan is formed in the upper plate, the burner is similarly formed. It is possible to prevent the radiant heat from the direct acting on the temperature sensor.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, reference numeral 1 is a grill built in a gas stove suspended from an opening W formed in a countertop CT. The grill 1 is a heat-resistant glass plate 1
1 is fitted into the grill door 12, and the grill door 12 opens and closes the grill storage 13 provided inside the grill 1 from the front. When the grill door 12 is pulled forward from the illustrated state, the grill pan 2 is pulled out forward together with the grill door 12 with the grill 14 placed. still,
A temperature sensor 15 biased upward is attached to the bottom left side of the bottom of the grill case 13. Also, the grill storage 13
Inside, a pair of lower fire burners 16 are attached to the left and right side walls, and an infrared type upper fire burner 17 is attached to the ceiling surface. Then, hot air or the like from the lower heat burner 16 or the upper heat burner 17 is exhausted to the outside through an exhaust duct 18 that opens at the upper part of the back wall of the grill 13. In the present invention, the upper plate 3 is placed on the grill pan 2. Reference numeral 12a is a substantially horizontal frame body attached to the grill door 12, and the grill pan 2 is placed on the frame body 12a. It is put in and taken out for. However, the grill pan 2 may be separated from the grill door 12 and put into and taken out of the grill cabinet 13 independently.

As shown in FIG. 2, an island portion 21 is formed by raising a part of the bottom surface of the grill pan 2 to a position not flooded at the left inner corner.
Is formed, and an opening 21a through which the temperature sensor 15 is inserted is formed on the upper surface of the island portion 21. On the other hand, the upper plate 3 has substantially the same size as the grill pan 2. The upper plate 3
A flat portion 31 that is one step higher than the central portion 32 that acts as a cooling portion is formed on the bottom surface of the right and left sides. The central portion 32
Does not have to be horizontal as shown, and may be recessed further toward the center from the shape shown. Then, the grill pan 2 is located on the far side of the left flat portion 31.
When the upper plate 3 is set on the sensor contact part 3 extending from the flat part 31 on the left side corresponding to the upper surface of the island part 21.
1a. As described above, when the grill pan 12 is pushed into the grill cabinet 13 by pushing the grill door 12, the temperature sensor 15
Contacts the sensor contact portion 31a through the opening 21a.
The upper plate 3 has a front opening 33 and a rear opening 34. Both the front opening 33 and the rear opening 34 reach not only the central portion 32 but also the left and right flat portions 31.

Referring to FIGS. 3 and 4, when the upper plate 3 is set on the grill pan 2 from above, the grill pan 2 and the upper plate 3 are set.
A space sandwiched between and is formed. The space communicates with the outside through the front opening 33 and the rear opening 34. Therefore, if water is poured from at least one of the front opening 33 and the rear opening 34, the space is filled with water. In addition, the amount of water injected is set to an amount that does not flood the island portion 21 as described above. Therefore, if water is poured,
As shown in, the water surface may contact the central portion 32,
The water surface does not contact the lower surface of the flat portion 31 which is one step higher than the central portion 32. When the lower heat burner 16 and the upper heat burner 17 are ignited to start grill cooking, the water in the space sandwiched between the grill pan 2 and the upper plate 3 is heated and the temperature of the water rises and boils after a predetermined time. At that time, since the flat portion 31 is not in contact with water, a gap is formed between the lower surface of the flat portion 31 and the water surface, and the gap communicates with the front opening 33 and the rear opening 34. Water vapor generated by boiling passes through the gap and the front opening 3
3 and the rear opening 34, the boiling water inside is not pushed out by being pushed by the steam. The water vapor discharged from the front opening 33 reaches the glass plate 11 of the grill door 12 through the opening 14b formed in the front leg plate 14a of the grill 14 and cools the glass plate 11. Since the water vapor is lighter than the air, the water vapor after cooling the glass plate 11 is the grill 13
Is not guided to the exhaust duct 18 through the relatively upper part of the above, and does not come into contact with food such as fish placed on the grill 14. Further, the steam discharged from the rear opening 34 does not flow into the grill chamber 13 and is discharged through the exhaust duct 18 as it is, and does not come into contact with the cooked food placed on the grill 14 again.

As described above, the sensor contact portion 31a extends from the flat portion 31. Therefore, heat conduction occurs between the two. The flat portion 31 functions as a heat collecting plate or a heat radiating plate depending on the different conditions. Referring to FIG.
When the grill cooking is started, the flat part 31 functions as a heat collecting plate and is rapidly heated by being exposed to the flame from the lower-burning burner 16 and receiving the radiant heat from the upper-burning burner 17. The heat collected in the flat portion 31 is applied to the sensor contact portion 31a.
The temperature detected by the temperature sensor 15 rapidly rises (a in FIG. 6). The water in the grill pan 2 starts to boil when t1 hours have passed since the start of grill cooking. Then, the water surface sways or splashes due to boiling, and hot water is applied to the lower surface of the flat portion 31 located immediately above the water surface. Even if it is boiling, the hot water does not reach 100 degrees or higher, so the flat part 31
The temperature drops to 100 degrees with the start of boiling. When the boiling continues and the bottom surface of the flat portion 31 is constantly filled with hot water, the flat portion 31 functions as a heat radiating plate, and even if the temperature of the sensor contact portion 31a tries to rise on the contrary to the above, heat is generated on the flat portion 31 side. Is transmitted to the sensor contact portion 31a, and the temperature of the sensor contact portion 31a does not exceed 100 degrees. Therefore, the temperature detected by the temperature sensor 15 remains constant at 100 degrees (b in FIG. 6). When more time passes and the hot water in the grill pan 2 boils and becomes steam, and is continuously discharged to the outside as described above, the water surface gradually lowers, and when t2 hours have elapsed from the start of cooking, the hot water is spread on the lower surface of the flat portion 31. It disappears. In that state, the hot water still remains, and the bottom surface of the central portion 32 is still hot, so the temperature of the central portion 32 remains at 100 degrees, drops onto the upper plate 3, and gathers in the central portion 32. Although no smoke is emitted from the oil, the flat portion 31 functions again as a heat collecting plate, and the temperature detected by the temperature sensor 15 rapidly rises from 100 degrees (c in FIG. 6). A control device (not shown) constantly monitors the detection signal of the temperature sensor 15, and when the detected temperature reaches a predetermined temperature (180 degrees in the present embodiment), it is determined that the water in the grill pan 2 is low. , That is notified by a lamp or the like. Note that the gas supply amount to the lower-firing burner 16 and the upper-firing burner 17 may be reduced or shut off together with the notification by a lamp or the like.

FIG. 7 is a graph showing the temperature change of the island portion 21 when grilling is performed with only the grill pan 2 without stacking the upper plate 3. In the conventional case, the opening 21a is not opened in the island portion 21, and water is poured until the island portion 21 is first submerged. The island 21 is 1 from the bottom of the grill pan 2.
Since it is molded stepwise, when the amount of water in the grill pan 2 decreases due to evaporation, it is exposed from the water earlier than other parts, so the detected temperature rises even when water remains.
When the detected temperature reaches a predetermined temperature (about 170 degrees), it can be detected that the amount of water has decreased. However, as is clear from comparison between FIG. 6 and FIG. 7, it is possible to detect the decrease in water more significantly when the upper plate 3 is used. Furthermore, by using the upper plate 3, it is possible to prevent steam from coming into contact with the food and prevent the taste of the food from being impaired. Further, the grill door 12
The glass plate 11 can be cooled with water vapor.

In the above embodiment, the temperature sensor 15 is attached to the bottom surface of the grill case 13. This is the grill case 1
When it is attached to the bottom surface of the temperature sensor 15, the heat-sensitive portion of the temperature sensor 15 faces upward. Therefore, when the grill pan 2 is temporarily pulled out from the grill chamber 13 during cooking, the radiant heat from the burner acts on the heat-sensitive portion of the temperature sensor 15 to cause the grill pan to move. If the state in which 2 is pulled out continues for a long time, the detected temperature rises, which may cause an erroneous determination that there is no water. In such a case, as shown in FIG. 8, the temperature sensor 15 is attached to the side surface 13a, which is the peripheral surface of the grill case 13, in the lateral direction. Then, an opening 22a is formed at a position higher than the water surface, which is a part of the side wall 22 of the grill pan 2, and a sensor contact portion 31b formed on a vertical wall portion rising from a side edge of the flat portion 31.
The temperature sensor 15 is brought into contact with the opening 22a via the opening 22a. With this configuration, even if the grill pan 2 is temporarily pulled out from the grill chamber 13 during cooking, the lower heat burner 16
It is possible to prevent the radiant heat from the upper heat burner 17 from directly acting on the heat-sensitive portion at the tip of the temperature sensor 15. When the temperature sensor 15 is mounted in the horizontal direction, the sensor contact portion 31b may be formed on the vertical wall portion rising from the rear end edge of the flat portion 31.

By the way, in each of the above-mentioned embodiments, since the opening for the temperature sensor is opened in the grill pan 2, there is a risk that water will spill from the opening although the opening is closed by the upper plate 3. Therefore, as shown in FIG. 9, a sensor contact portion 31a ′ is horizontally extended from a flange 35 that extends outward from the upper edge of the peripheral wall of the upper plate 3, and the temperature sensor is provided on the lower surface of the sensor contact portion 31a ′. You may make 15 contact | abut.
Alternatively, the tongue piece extending laterally from the flange 35 may be bent so as to hang down to the outside of the grill pan 2 to form the sensor contact portion 31b '. The horizontal sensor contact portion 31a 'may be formed not only on the rear end of the upper plate 3 but also on either the left or right side, or the vertical sensor contact portion 31a' may be formed.
b ′ may be formed at the rear end of the upper plate 3.

In the above embodiment, the grill cabinet having the lower fire burner 16 and the upper fire burner 17 has been described, but it is not always necessary to have both burners, and only one of them is provided. The present invention can also be applied to a grill cabinet.

By the way, in the above-mentioned embodiment, a step is provided between the flat portion 31 and the central portion 32 of the upper plate 3, but it is not always necessary to provide the step, and the central portion 32 is not formed.
The entire bottom surface may be the flat portion 31. Alternatively, the central portion 32 is formed so as to be higher than the flat portions 31 on both sides, and the flow of the flame formed from the lower fire burners 16 on both sides toward the center is changed upward in the central portion, so that the central portion of the flame You may make it prevent mutual collision.

[0019]

As is apparent from the above description, the present invention can remarkably detect that the water in the grill pan has decreased below a predetermined amount by stacking the upper plate on the grill pan.

[Brief description of drawings]

FIG. 1 is a sectional view showing a configuration of an embodiment of the present invention.

FIG. 2 is a perspective view showing the shapes of a grill pan and an upper plate.

FIG. 3 is a plan view of the grill pan with the upper plate attached.

FIG. 4 is a sectional view taken along line IV-IV

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

FIG. 6 is a diagram showing changes in the detected temperature when the upper plate is attached.

FIG. 7 is a diagram showing changes in the detected temperature when the upper plate is not attached.

FIG. 8 is a cross-sectional view taken along line VV in another embodiment.

FIG. 9 is a partial perspective view showing a modified example of each of the above embodiments.

[Explanation of symbols]

1 grill 2 grilled bread 3 plate 15 Temperature sensor 31a Sensor contact part 31b Sensor contact part

Claims (5)

(57) [Claims] 1. In a grill device having a grill pan installed below a grill for holding food in a grill chamber and having water poured therein, an upper plate for covering the water surface in the grill pan is held by the grill pan, and the upper plate is held. A horizontal flat portion that forms a predetermined gap between the water surface and a predetermined range, and a sensor contact portion that is connected to the flat portion is formed on the upper plate.
Also, a temperature sensor that abuts against the sensor abutting portion is provided in the grill chamber to detect that the water in the grill pan has decreased to a predetermined amount or less from the temperature detected by the temperature sensor. 2. The grill apparatus according to claim 1, wherein the upper plate is formed with a cooling portion lower than the flat portion and connected to the flat portion. 3. The temperature sensor is arranged upward on the bottom surface of the inside of the grill, and a horizontal sensor contact portion is formed by extending from the flat portion.
Alternatively, the grill device according to claim 2. 4. The temperature sensor is arranged inwardly on a peripheral surface of a grill cabinet, and a vertical wall portion rising from a side edge of the flat portion is formed on the upper plate, and a part of the vertical wall portion is formed. The grill device according to claim 1 or 2, wherein the grill is a sensor contact portion. 5. The temperature sensor is arranged inwardly on the peripheral surface of the inside of the grill, and a vertical sensor abutting portion extending from the flat portion and hanging outside the grill pan is formed on the upper plate. The grill device according to claim 1 or 2, wherein the grill device is formed.