JPH07213431A - Heating equipment for retort pouch food - Google Patents

Abstract

PURPOSE:To surely adjust temperature without abnormal overheating due to a single temperature sensor by providing electric heaters for each heating plate, and concurrently making the output of the electric heater for one heating plate greater than that of the other electric heater. CONSTITUTION:Electric heaters 10a and 10b are provided for the back surfaces of each surface plate 9 respectively, furthermore, support plates 11 are provided for the back surfaces of each electric heater 10a and 10b, and each electric heater 10a and 10b is thereby held between each surface plate 9 and each support plate 11. The electric heater 10a provided for the fixed heating plate 6 is designed to be greater in output than the electric heater 10b provided for the movable heating plate 7. A temperature sensor 12 measures only the temperature of the surface plate of the fixed heating plate 6, this is the reason why the electric heater 10a is greater in heating valve than the electric heater 10b, and the fixed heating plate 6 thereby becomes higher in temperature than the movable heating plate 7, so that there is no problem as far as switching-on control is performed based on temperature on the fixed heating plate 6 side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for heating retort pouch food in its bag.

[0002]

2. Description of the Related Art Conventionally, retort pouch foods in which cooked foods are enclosed in bags have been widely used among various foods. These retort pouch foods are heated in a bag and taken out of the bag for eating.

When heating these retort pouch foods, water is boiled in a pan or the like, put in a bag as it is and heated for 3 to 5 minutes. In this method, Is necessary to put water in a pot and bring it to a boil, and sometimes the surroundings are wet with water drops before the retort pouch food is taken out of hot water and opened. Moreover, the hot water used for heating had to be thrown away, wasting energy.

Therefore, the applicant has devised a device for heating retort pouch food by sandwiching it between hot plates in the same bag without using hot water, and filed an application as Japanese Patent Application No. 5-25226.

[0005]

However, in this device, since the hot plate is heated by the electric heater and the retort pouch food is sandwiched and heated by the hot plate, the temperature control cannot always be appropriately performed. there were.

That is, when the outputs of the electric heaters of both heating plates holding the retort pouch food are made equal and the outputs are controlled simultaneously by a temperature sensor attached to one of the heating plates, an error in the output of the electric heater or an additional error occurs. Due to the structural characteristics of the warmer, the temperature of both hot plates does not necessarily change equally, and there is a risk that the hot plate without the temperature sensor will overheat abnormally.

It is also possible to provide a temperature sensor on each of the heating plates and control each heating plate with the temperature sensor, but two temperature sensors for temperature control are required, and the energization of the electric heater is controlled. The circuit to do becomes complicated.

The present invention has been made in view of the above circumstances, and the heating output of a pair of hot plates sandwiching a retort pouch food product is made different, and a single temperature sensor does not cause abnormal overheating. It is an object of the present invention to provide a mechanism capable of reliably controlling the temperature.

[0009]

According to the present invention, therefore, a pair of hot plates facing each other are provided so as to be openable and closable, and the pair of hot plates are elastically biased toward each other so that the hot plates are electrically heated. A heater is provided, and the output of one of the electrothermal heaters of the hot plate is made larger than that of the other electrothermal heater.

In the present invention, the other heating plate is preferably provided with an electric heater having a smaller output than the one heating plate, but the other heating plate may not be provided with the electric heater.

Further, a temperature sensor is provided on the one hot plate, and a circuit is provided for controlling energization to the electric heater and adjusting the temperature based on the temperature of the one hot plate detected by the temperature sensor. preferable.

Further, a temperature sensor is also provided on the other hot plate, the temperature sensor is exposed on the surface of the hot plate and brought into direct contact with the retort pouch food, and the temperature of the retort pouch food is measured and applied. It is also possible to provide a circuit that detects the end of temperature and shuts off the power supply to the electric heater.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an embodiment of a warmer 1 for a retort pouch food according to the present invention, in which an opening 4 for inserting a retort pouch food 3 is formed in an upper part of a box-shaped main body 2. A lid 5 is rotatably attached to the upper portion of the main body 2.

A fixed hot plate 6 is mounted in the main body 2, and a movable hot plate 7 is opposed to the fixed hot plate 6.
Is rotatably attached to the lower portion thereof and is biased by a spring 8 in a direction approaching the fixed hot plate 6.

The fixed heating plate 6 and the movable heating plate 7 are respectively provided with electric heaters 10a and 10b on the back surface of the surface plate 9, and further with a support plate 11 on the back surfaces of the electric heaters 10a and 10b. The heaters 10a and 10b are sandwiched between the surface plate 9 and the support plate 11.

Thus, in the present invention, the electric heater 10a provided on the fixed hot plate 6 has a larger output than the electric heater 10b provided on the movable hot plate 7.

The electric heater 10a of the fixed hot plate 6 is 150
~ 200w is suitable, the electric heater 1 of the movable heating plate 7
0b is smaller than that, and an output of about 50 to 100w is suitable.

In the movable heating plate 7, the output of the electrothermal heater 10b can be further reduced and the output can be set to 0 (zero). In this case, the electrothermal heater 10b can be omitted.

In the following description, the movable heating plate 7 is provided with the electric heater 10b and is described as a "heating plate" having a heating function, but unless otherwise specified, the electric heating heater 10b is not provided and the heating function is provided. It also includes a structure that does not.

A notch 1 is formed in the central portion of the upper edge of the movable hot plate 7.
7 is formed, and the upper end portion of the retort pouch food product 3 is squeezed through the notch 17, so that the retort pouch food product 3 can be held in and out with fingers without touching the hot movable hot plate 7. You can do it.

12a and 12b are fixed heating plates 6 respectively.
And a temperature sensor attached to the movable heating plate 7.

A temperature sensor 12 provided on the fixed heating plate 6.
a is in contact with the back surface of the surface plate 9 of the fixed heating plate 6 and measures the temperature of the surface plate 9.
The energization of the electric heaters 10a and 10b is controlled on the basis of the temperature of 1 to maintain the temperature of the surface plate 9 of the fixed heating plate 6 at a predetermined temperature.

The temperature sensor 12b provided on the movable hot plate 7 penetrates the surface plate 9 of the movable hot plate 7 and is exposed on the surface thereof, and directly contacts the retort pouch food product 3 to measure the temperature thereof. It is like this. When the temperature sensor 12b detects a predetermined temperature, the electric heaters 10a and 10b are de-energized and the heating is terminated.

A slider 13 is slidably provided on the lid 5, and is biased by a spring 14 rearward, that is, in a direction toward the fixed heating plate 6. A plurality of irregularities 15 are formed on the lower surface of the slider 13 so that when the lid 5 is closed, it is engaged with the upper end of the support plate 11 of the movable heating plate 7.

When the retort pouch food product 3 sandwiched between the fixed hot plate 6 and the movable hot plate 7 is overheated and its bag is inflated, the movable hot plate 7 is separated from the fixed hot plate 6 by this. The slider 13 slides forward along with this, and the slider 13 operates a switch (not shown) to interrupt the electric power supply to the electric heaters 10a and 10b.

An operating rod 16 is vertically provided at the rear end portion of the lid 5, and when the lid 5 is rotated and opened, the operating rod 1 is provided.
6 presses the movable hot plate 7 to rotate it forward against the elastic force of the spring 8.

[0027]

Next, the method of using the warming device of the present invention will be described. First, when the lid 5 is rotated upward as shown by the chain line in FIG. 1 to open it, the operating rod 16 is thereby rotated to push the movable hot plate 7 forward, that is, to the left in FIG. Rotates forward, and the movable hot plate 7 and the fixed hot plate 6 are separated from each other. Then, the retort pouch food product 3 can be inserted from the opening 4 between the heating plates 6 and 7.

Then, when the lid 5 is rotated forward to close the upper portion of the main body 2 as shown by the solid line in FIG. 1, the operating rod 16 is rotated downward and the elastic force of the spring 8 causes the movable hot plate 7 to move. The retort pouch food product 3 is pinched between the fixed hot plate 6 and the movable hot plate 7 by rotating in a direction approaching the fixed hot plate 6.

In this state, the electric heaters 10a and 10b are energized to heat the fixed hot plate 6 and the movable hot plate 7 to heat the retort pouch food product 3 sandwiched therebetween. When the movable heating plate 7 is not provided with the electric heater 10b, only the electric heater 10a of the fixed heating plate 6 heats the retort pouch food product 3.

At this time, the electric heater 10a provided on the fixed hot plate 6 has a large output, and the electric heater 10b of the movable hot plate 7 has a smaller output than the electric heater 10b or does not generate heat, so that the retort pouch food 3 is mainly used. The fixed hot plate 6 side is heated, and the fixed hot plate 6 side becomes hotter than the movable hot plate 7 side.

Thus, the temperature of the surface plate 9 of the fixed heating plate 6 is measured by the temperature sensor 12a, and when the temperature reaches a predetermined temperature, the electric heaters 10a and 10b are deenergized, and the surface plate 9 is stopped.
When the temperature decreases, the power is re-energized to keep the temperature of the surface plate 9 within a predetermined range, and the retort pouch food product 3 is prevented from being locally overheated.

At this time, the temperature sensor 12a is the fixed hot plate 6
Although the temperature of the movable heating plate 7 is not measured, only the temperature of the surface plate 9 of the electric heater 1 is measured.
Since 0a has a larger amount of heat generation than the electric heater 10b and the fixed hot plate 6 has a higher temperature than the movable hot plate 7, even if the energization is controlled only based on the temperature of the fixed hot plate 6, the movable hot plate 7 side It does not get hotter.

Therefore, the movable heating plate 7 is provided with the electric heater 10b, and the amount of heat generated is small even when heating is performed by this, and there is no danger of overheating even if the energization control based on the temperature is not performed. Absent.

In this way, while controlling the temperature by the temperature sensor 12a, the electric heaters 10a and 10b are energized to heat the retort pouch food product 3. Then, the temperature of the retort pouch food product 3 is measured by the temperature sensor 12b provided on the movable hot plate 7, and if the temperature sensor 12b detects that the retort pouch food product 3 reaches a predetermined temperature, the electric heaters 10a, 10b. The power supply to the retort pouch food product 3 is terminated by cutting off the power supply to the retort pouch food product 3.

At this time, the retort pouch food 3 is mainly heated from the fixed hot plate 6 side, and the movable hot plate 7 does not generate heat or its calorific value is small. Therefore, the retort pouch food 3 is mainly heated from the fixed hot plate 6 side. The temperature sensor 12b detects the predetermined temperature only when the temperature of the sheet 3 is sufficiently raised to the movable heating plate 7 side, and the heating is not insufficient.

Further, since the amount of heat generated by the electric heater 10b is small or does not generate heat, the temperature sensor 12b provided on the movable heating plate 7 does not malfunction due to the heat of the electric heater 10b.

Further, in the embodiment shown in the drawings, when the temperature sensor 12a or 12b fails and the retort pouch food product 3 is overheated, the bag is inflated due to the expansion of its contents, and the bag is pushed by the movable heat. The plate 7 rotates in a direction away from the fixed hot plate 6, and the slider 13 slides forward along with the movable hot plate 7, which operates a switch (not shown) to heat the electric heater 10a, The power to 10b is cut off to prevent the retort pouch food product 3 from bursting.

[0038]

As described above, according to the present invention, since the retort pouch food can be heated only by the warmer of the present invention without using water or a pan, the labor for boiling water can be saved. It is not necessary to heat the retort pouch food in a short time, there is no risk that water adhering to the bag will spill and wet the surroundings, and it is necessary to wipe the bag with a towel etc. to clean up the adhering water. Absent.

Since no water is used, no extra heat is required to heat the water, no energy is wasted, and there is no need to clean up heated water or a pot for heating it. It does not take time and effort.

According to the present invention, of the pair of hot plates 6 and 7 holding the retort pouch food 3, one of the hot plates 6 has a large heat generation amount and the other heat plate 7 has a small heat generation amount. Since the retort pouch food product 3 does not generate heat, the retort pouch food product 3 is mainly heated from one hot plate 6 side, and the one hot plate 6 side becomes hotter than the other hot plate 7 side.

Therefore, it is possible to measure only the temperature on the side of the one hot plate 6 and control the energization of the electric heaters 10a and 10b based on the measured temperature, and control the energization based on the temperature of the other hot plate 7 side. Even if it does not exist, the temperature of the other hot plate 7 side does not become higher than that of the one hot plate 6 side, so that it does not inadvertently overheat.

Therefore, according to the present invention, since it is not necessary to provide the temperature sensor 12a only on one of the heating plates 6 and the temperature sensor for controlling the temperature on the other heating plate 7, only a single temperature sensor is provided. The energization of both hot plates 6, 7 can be controlled by this, and the other hot plate 7 is not heated by it.

Further, according to the invention of claim 4, by providing the temperature sensor 12b for measuring the heating state of the retort pouch food 3 on the other heating plate 7, heating is mainly performed by heating from one heating plate 6 side. The temperature of the retort pouch food 3 to be measured is directly measured, and the retort pouch food 3
It is possible to detect that the whole has been sufficiently heated, so that insufficient heating does not occur.

Further, according to the above embodiment, the temperature sensor 1
When the retort pouch food product 3 is overheated due to a failure in 2a, 12b, the slider 13 detects the swelling of the retort pouch food product 3 and shuts off the power supply. Danger can be prevented.

Therefore, the present invention can heat only the retort pouch food easily and in a short time, and is safe, and is extremely effective in eating the retort pouch food.

Further, according to the above-mentioned embodiment, since the movable hot plate 7 opens with respect to the fixed hot plate 6 as the lid 5 is opened, the retort pouch food product 3 is easily discharged between the hot plates 6 and 7. It can be inserted and the hot plate 6,7
The retort pouch food product 3 can be gripped without touching, and the retort pouch food product 3 can be more easily taken in and out.

[Brief description of drawings]

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

FIG. 2 is a sectional view taken along the line II-II of FIG.

[Explanation of symbols]

 1 Heater 3 Retort pouch food 6 Fixed hot plate 7 Movable hot plate 10a, 10b Electric heater 12a, 12b Temperature sensor

Claims (4)

[Claims] 1. A pair of hot plates (6, 7) facing each other are provided so as to be openable and closable, and the pair of hot plates (6, 7) are elastically biased toward each other so that the hot plates ( 6, 7) are provided with electric heaters (10a, 10b), and the output of the electric heater (10a) of one of the hot plates (6) is applied to the other (7).
Retort pouch food warmer characterized by being made larger than the electric heater (10b) 2. The retort pouch food warmer according to claim 1, wherein the other heating plate (7) is not provided with an electric heater (10b). 3. The temperature sensor (12a) according to claim 1 or 2, wherein a temperature sensor (12a) is provided on the one heating plate (6), and based on the temperature of the heating plate (6) detected by the temperature sensor (12a), Control the electric power to the electric heaters (10a, 10b),
Retort pouch food warmer characterized by having a temperature control circuit 4. The temperature sensor (12b) according to claim 1, wherein the other hot plate (7) is provided with a temperature sensor (12b) exposed on the surface of the hot plate (7).
), The temperature of the retort pouch food (3) is measured, and when the temperature reaches a predetermined value, the electric heater (10a,
10b) a circuit for shutting off the power supply to the retort pouch food warmer