JP4027326B2 - Cooker - Google Patents

Description

  The present invention generally relates to a cooking device such as a microwave oven and an oven, and more particularly to a cooking device for preventing accidents such as burns.

  One danger when using a cooking device is the problem of burns. In the case of a microwave oven that is widely used in general households as a cooking device, examples of the risk of burns include the following forms.

1) Burns caused by heated objects heated to high temperature during high-frequency heating For example, when food is heated by wrapping, the food in the wrap is heated to a high temperature, and a large amount of water vapor is generated. This is the case when the water vapor spouts out to the user's hand when removing it and the user is burned.

  In addition, this phenomenon is the same as when the above wrap is removed even when unwrapped food is heated, and when the microwave oven door is opened, high-temperature water vapor is discharged in front of the microwave oven. I can say that.

2) Burns caused by sudden boiling When a liquid is heated, there is a phenomenon of sudden boiling that occurs only when the liquid is overheated to a boiling temperature or higher. The “sudden boiling” phenomenon is, for example, the impact that occurs when the coffee in a cup reaches the boiling point in the heating chamber (chamber) by high-frequency heating and does not boil and the door is opened or the cup is removed. It is a phenomenon that blows out at once. A burn caused by bumping is a case in which water vapor spouts out to the user due to this phenomenon, and the user burns. This is a risk that is difficult for the user to predict compared to the risk 1) above.

  In order to make the user understand these dangers, the instruction manual etc. has a function of notifying the danger of overheating, or the cooking device itself has a function to notify the danger at the end of heating. There is something.

  For example, in Japanese Patent Application Laid-Open No. 7-158864 (Patent Document 1), even if the temperature of the door of the heating cooker rises due to cooking in the heating cooker, burns are caused by appealing to the user visually due to color change. It has been proposed to prevent.

  Japanese Patent Application Laid-Open No. 8-261479 (Patent Document 2) proposes preventing an accident such as a burn by notifying a user when the heating chamber wall surface is heated to a temperature higher than the burn temperature in a cooking device. ing.

  Japanese Patent Application Laid-Open No. 10-207771 (Patent Document 3) proposes a microwave oven equipped with a heater that includes an alarm device that warns the user when the surface temperature of the heater is a temperature that causes burns when contacting the human body. ing.

  Japanese Patent Laid-Open No. 2000-249349 (Patent Document 4) proposes a cooking device that automatically opens and closes a door after a safe temperature and humidity are reached.

  In addition, the door opening / closing apparatus of the cooking appliance proposed by Unexamined-Japanese-Patent No. 3-45820 (patent document 5) is an apparatus main body which has a cooking chamber which accommodates to-be-cooked material, and the opening / closing door which interrupts | blocks this cooking chamber from air | atmosphere. A bottom plate interlocking with the open / close door, a slide mechanism for smoothly sliding the bottom plate, a motor for driving the bottom plate, a transmission means for transmitting the driving force of the motor to the bottom plate, and a latch for opening and holding the open / close door The apparatus includes a device, a door opening / closing switch, and a control circuit that controls a motor that receives the signal from the door opening / closing switch and opens / closes the opening / closing door or performs one of the operations.

Japanese Patent Laid-Open No. 11-8057 (Patent Document 6) discloses an example of a high-frequency heating device provided with a rotating antenna.
JP 7-158864 A JP-A-8-261479 Japanese Patent Laid-Open No. 10-207771 JP 2000-249349 A JP-A-3-45820 Japanese Patent Laid-Open No. 11-8057

  In conventional high-frequency heating devices such as microwave ovens disclosed in JP-A-8-261479 and JP-A-10-207771, food is placed on a rotating mounting table in order to reduce heating unevenness of the food. It is common to perform heating. In other words, the entire heating unevenness is reduced by passing the heating intensity distribution portion while the food material rotates and moves with respect to the heating intensity distribution generated in the heating chamber.

  On the other hand, the bumping phenomenon is said to be caused by the following conditions. An overheated state is a state in which when a liquid is heated in a static state, it does not cause boiling even when the temperature of the liquid reaches the boiling point temperature. Is in a state where it is held in a liquid. This state is a very unstable state, and when an impact such as vibration is applied to the liquid, water vapor is released at a stretch. This phenomenon is a bumping phenomenon.

  In the conventional high-frequency heating apparatus, the food is heated while rotating as described above, so that the slight vibration accompanying the rotation is always applied to the food. As a result, in the conventional microwave oven, there is a low probability that a sudden boiling phenomenon, in particular, a phenomenon in which water vapor is blown out at a stroke due to an impact when the door is opened or food is taken out.

  In recent years, a high-frequency heating apparatus such as a rotating antenna type microwave oven disclosed in Japanese Patent Application Laid-Open No. 11-8057 has been widely used for home use from a conventional high-frequency heating apparatus employing a rotary mounting table. In this type of high-frequency heating device, as shown in the above publication, a high-frequency wave guided by a waveguide outside the heating chamber is passed through a small-diameter hole provided in the wall surface of the heating chamber, and a receiving antenna unit and a radiation antenna A high-frequency wave is radiated from the bottom of the heating chamber with a rotating antenna composed of a portion. The food material to be heated is held on a fixed mounting table of a substantially rectangular dielectric (usually formed of glass, ceramics, etc.) immediately above the rotating antenna so as to separate the rotating antenna portion in the heating chamber. This type of high-frequency heating device has a large area where the object to be heated can be placed compared to the rotating table, and is excellent in terms of cleanability because there are no accessories such as a rotating table in the heating chamber. It is becoming popular for household use.

  However, this rotating antenna type high-frequency heating device has a problem of greatly increasing the probability of occurrence of the bumping phenomenon described above. That is, in the rotating antenna type high-frequency heating device, the food is heated in a stationary state on the fixed mounting table, so that the factor that induces the bumping phenomenon described above increases. As a result, the risk of user burns increases.

  Conventionally, a rotating antenna type microwave oven has been widely used for business purposes. For example, a rotating antenna type microwave oven is used in a kitchen facility such as a convenience store or a restaurant. In convenience stores, the frequency of heating a liquid is rare, and it is mainly used for reheating lunch boxes and bread. Further, in the above kitchen facilities, since the user is a so-called professional cook, the method of using the rotating antenna type microwave oven is well known.

  However, as described above, when a rotating antenna type microwave oven starts to spread for household use, the danger due to bumping is a risk that is difficult for housewives or even children to understand, and no measures are taken. As long as the user is constantly exposed to the risk of accidents of sudden burns. Some cooking devices, microwave ovens, and the like proposed in the above publications have a function in which the cooking device itself notifies the danger at the end of heating in order to make the user understand this danger. However, it is still insufficient to prevent the risk of accidents such as burns.

  Some conventional cooking devices are provided with a structure for opening a door by a push button. However, when the button is pressed, the door is always opened to the fully open state, so the high temperature steam in the heating chamber is discharged at once to the user who takes out the heated food in front of the cooking device. The For this reason, there was a risk of an accident in which the user was burned.

  Further, when the object to be heated contains liquid, there may be an accident that liquid is spilled with the opening / closing operation of the door when the food is moved inside or outside the heating chamber before or after the start of heating.

  Therefore, an object of the present invention is to prevent the accident when the user opens and closes the heating chamber or the accident when the user moves the food material to be heated inside and outside the heating chamber. Is to provide a cooker.

Cooking device according to the inventions are cooker body and a mounting table for mounting an object to be heated, to hold the mounting table, the mounting table from the heating chamber of the cooking device body to the outside with a heating chamber The drawer body movably arranged inside and outside the heating chamber of the cooker body, the drive means for moving the drawer body, and the movement for controlling the drive means to change the moving speed of the drawer body Speed control means. The moving speed control means is the initial stage of the drawer where the drawer body starts to move out of the heating chamber of the cooker body, the end of the drawer when the drawer body finishes moving out of the heating chamber of the cooker body, and the drawer body heats the cooker body. The moving speed of the drawer at the time of at least one time selected from the group consisting of the initial stage of pushing-in starting to move from the outside to the inside and the end of pushing-in after the drawer body has finished moving from the outside of the heating chamber to the inside of the cooker body The driving means is controlled so as to be a relatively slow speed compared to the moving speed of the drawer in the middle period.

The cooking device according to the inventions, among the drawers closet operation of the drawer body, the drawer initialization from the heating chamber begins to move out, the drawer end from the heating chamber finishes moves out and begins to move to the inner of the heating outdoor In at least one of the initial stage of pushing-in or the last stage of pushing-in that has finished moving from the outside of the heating chamber, the drawer body moves at a slower speed than the middle stage of the drawer-push-in operation of the drawer body. Thus, since the drawer body moves at a slow speed in the initial stage or the final stage of the drawer push-in operation, not only can the heated object be prevented from falling due to the impact of the pull-in push-in operation, but also liquid can be applied to the heated object. In such a case, it is possible to prevent liquid from spilling due to the impact of the pull-in / push-in operation.

In the cooking device in accordance with this inventions, among the drawers closet operation of the drawer body, the drawer initialization from the heating chamber begins to move out, compared with the medium-term drawer body is the drawer closet operated by the movement speed control means When moving at a slow speed, the steam generated from the object to be heated tends to be discharged from the heating chamber after the heating is completed. Drain securely upward, not in front of the user. For this reason, it is possible to prevent water vapor generated from the heated food from hitting the user.

Cooking device according to the inventions further comprises a door for opening and closing the heating chamber, the drawer body is Ru is configured to move in conjunction with the opening and closing operation of the door.

Further, in the heating cooker having a door in accordance with the inventions, the movement speed control means gradually with accelerating the moving speed of the opening initially door opening and closing door starts opening, the drawer body vibrates moves that controls the drive means so as to. By doing in this way, since the drawer | drawing-out body which put the heated foodstuff vibrates and moves at the opening initial stage, generation | occurrence | production of the bumping phenomenon which a user cannot recognize easily can be prevented beforehand. For this reason, it is possible to prevent the danger of an accident that the user suddenly hits the high-temperature water vapor and is burned.

In this case, the moving speed controlling means, drawer body by causing the moving speed of the opening initially door opening and closing door starts opening is accelerated or decelerated at a predetermined cycle that controls the drive means to move and vibrate.

  As described above, according to the present invention, it is possible to prevent an accident when the user opens and closes the heating chamber or an accident when the user moves the food material to be heated inside and outside the heating chamber. it can.

  An embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing a schematic external configuration of a heating cooker as one embodiment of the present invention.

  As shown in FIG. 1, the cooker body 1 has a heating chamber 3 for cooking the object to be heated. The drawer body 2 is arranged so as to be movable inside and outside the cooker body 1, that is, slidable so that the drawer body 2 can be pulled out from the heating chamber 3 of the cooker body 1. The heating cooker includes a slide rail 7 as a moving mechanism for sliding the drawer body 2 in and out of the cooker body 1. The drawer body 2 includes an opening / closing door 4 for opening and closing the heating chamber 3 and a heating container 5 for placing and storing an object to be heated. The heating container 5 has a side wall on the left and right sides, a rear wall on the back side disposed in the heating chamber 3 of the cooker body 1, and an opening on the upper side, and an opening / closing door 4 is attached to the front. Yes. When the opening / closing door 4 closes the opening of the heating chamber 3, the internal space of the heating chamber 3 is configured to be a sealed space by the inner wall surface of the cooker body 1 and the drawer body 2.

  The open / close door 4 of the drawer body 2 is supported by the cooker body 1 on the left and right side wall surfaces located outside the heating chamber 3 via the slide rail 7. The slide rail 7 includes a fixed rail and a movable rail that slides along the fixed rail. The fixed rail is attached to the left and right wall surfaces outside the heating chamber 3 of the cooker body 1. The movable rail is opened and closed through an L-shaped angle member 8 attached to the inner wall surface of the door 4 so as to extend from the inner wall surface of the door 4 of the drawer body 2 into the heating chamber 3 of the cooker body 1. It is attached to the door 4.

  FIG. 2 is a diagram showing a schematic configuration of a heating cooker including a side surface partial cross section parallel to the drawer direction of the drawer body as one embodiment of the present invention.

  As shown in FIG. 2, a microwave generator 11 is disposed as a high-frequency generator on the upper and rear outer sides of the heating chamber 3 in the cooker body 1. The microwave generation device 11 is disposed outside the heating chamber 3 and is disposed outside the heating chamber 3. The microwave generation device 11 is disposed outside the heating chamber 3 and propagates the microwave generated in the magnetron 12. And the tube 13. Microwaves generated by the magnetron 12 propagate through the waveguide 13. Microwaves generated from the magnetron 12 are guided by the waveguide 13 outside the heating chamber 3 and pass through the feeding port 14, which is a small-diameter hole provided in the upper wall surface of the heating chamber 3. The rotating antenna 15 is composed of a radiating antenna unit 15b and is rotated by a motor 15c so as to radiate uniformly into the heating chamber 3 from above the heating chamber 3. Thus, the microwave supplied into the heating chamber 3 from the power supply port 14 is cooked by heating the object to be heated accommodated in the heating container 5 of the drawer body 2 disposed in the heating chamber 3.

  The heating container 5 includes a fixed mounting table 5a for mounting an object to be heated. The fixed mounting table 5a is disposed immediately below the rotating antenna 15 and is formed of a dielectric. The object to be heated is placed on the tray 18 and placed on the fixed mounting table 5a. A rack 17 is attached to the open / close door 4 of the drawer body 2. The teeth of the rack 17 are configured to mesh with a pinion gear attached to a rotating shaft of a door driving motor (DC motor) 16 as a driving means for moving the open / close door 4. Thus, a mechanism for automatically moving the drawer body 2, that is, an automatic opening / closing mechanism for automatically opening / closing the door 4 is configured. When the door drive motor 16 rotates in the forward and reverse directions, the pinion gear attached to the rotation shaft rotates, and the rack 17 linearly moves in the left-right direction in FIG. 2 according to the rotation. In accordance with the movement of the rack 17, the tray 18 accommodated in the heating container 5 of the drawer body 2 and placed on the fixed mounting table 5a moves. That is, the drawer body 2, that is, the open / close door 4 moves. Thus, the opening / closing door 4 is automatically opened and closed by the door driving motor 16 to automatically open and close the heating chamber 3, and the drawer body 2 is automatically moved by the door driving motor 16, so that the tray 18 The object to be heated also moves automatically inside and outside the heating chamber 3.

  FIG. 3 is a block diagram showing the control of the open / close door motor of the heating cooker as one embodiment of the present invention. As shown in FIG. 3, a control unit provided in the cooker body 1 controls a door drive motor (DC motor) 16.

  FIG. 4 is a diagram showing a control flow when the opening / closing door of the heating cooker is opened as one embodiment of the present invention.

  As shown in FIG. 4, when the opening / closing door 4 is opened, first, in step 101, the control unit sends a door opening initial control signal (variable acceleration) to the door driving motor (DC motor) 16. Thereby, the opening / closing door 4 starts moving while increasing the speed. In step 102, when the control unit determines that the door moving distance has become, for example, 10 cm, the control unit sends a door opening middle period control signal (equal speed) to the door driving motor 16 as shown in step 103. . Thereby, the opening / closing door 4 moves at a substantially constant speed. Thereafter, when the control unit determines in step 104 that the door moving distance under a substantially constant speed is 20 cm, for example, as shown in step 105, the control unit outputs a control signal (deceleration) for closing the door. Is sent to the door drive motor 16. Thereby, the opening / closing door 4 moves while reducing the speed. When the control unit determines that the door moving distance is 10 cm, for example, the control unit sends a door stop control signal to the door driving motor 16 as shown in step 106. Thereby, the opening / closing door 4 stops. In this embodiment, the moving speed of the door 4 is a maximum of 10 cm / sec. The closing operation of the open / close door 4 is also controlled in the same manner as described above.

  FIG. 5 is a diagram showing the relationship between the moving distance and moving speed of the open / close door of the heating cooker as one embodiment of the present invention. FIG. 6 is an enlarged view of the portion indicated by VI in FIG. 5 and shows the relationship between the moving distance and moving speed at the initial opening of the door.

  As shown in FIG. 5, the open / close door 4 moves while gradually accelerating the moving speed in the initial stage of opening the door when the open / close door 4 starts to open under the control shown in FIG. In the opening and closing stage when the opening and closing door 4 is opened, the moving speed is gradually reduced and finally stopped in a fully opened state. The open / close door 4 moves while gradually accelerating the moving speed at the initial stage of closing the door when the open / close door 4 starts to close by the same control as that shown in FIG. 4, and at a substantially constant speed in the middle of the closing operation. At the closing end when the door 4 is closed, the moving speed is gradually reduced and the moving door is finally closed.

  As shown in FIG. 6, the opening / closing door 4 gradually accelerates the moving speed while accelerating / decelerating the moving speed at a predetermined cycle when the opening / closing door 4 starts to open by the control shown in FIG. 4. Then move. In this embodiment, the open / close door 4 moves while repeating acceleration and deceleration at a cycle of about 0.06 seconds. In this manner, the opening / closing door 4 vibrates when the door is initially opened, that is, the drawer body 2 vibrates and moves.

  FIG. 7 is a diagram showing fine vibrations applied to the drawer body in the initial opening of the open / close door of the heating cooker as one embodiment of the present invention.

  As shown in FIG. 7, by controlling the moving speed of the opening / closing door 4 shown in FIGS. 4 and 6, the opening / closing door 4, that is, the drawer, has a slight vibration with a relatively large amplitude in the early stage of opening the door. Given to body 2.

  FIG. 8 is a side sectional view of a heating cooker parallel to the pulling direction of the drawer body according to one embodiment of the present invention, and shows a state in which the open / close door is closed. FIG. FIG. 10 is a diagram showing a state in the middle or closed period in the operation of the open / close door, and FIG. 11 is a diagram showing a state in the final state or in the initial closed state in the operation of the door.

  As shown in the order of FIGS. 8, 9, 10, and 11, when the heated object 6 is taken out of the heating chamber 3 after the heating of the heated object 6, the drawer body is opened along with the opening operation of the opening / closing door 4. 2 is performed. As shown in the order of FIGS. 11, 10, 9, and 8, when the object to be heated 6 is accommodated in the heating chamber 3 before the heating of the object to be heated 6 is started, the opening / closing door 4 is closed. Along with this, the pushing-in operation of the drawer body 2 is performed.

  As shown in FIGS. 8 to 11, the moving mechanism is configured to open and close the drawer body 2 in addition to the slide rails 7 (FIG. 1) provided on the left and right side wall surfaces located outside the heating chamber 3. The door 4 is supported by the cooker body 1 on the bottom wall surface located outside the heating chamber 3 via the slide rail 9. The slide rail 9 includes a fixed rail 9a and a movable rail 9b that slides along the fixed rail 9a. The fixed rail 9a is attached to the bottom wall surface outside the heating chamber 3 of the cooker body 1. The movable rail 9b has an L-shaped angle member 10 attached to the inner wall surface of the open / close door 4 so as to extend from the inner wall surface of the open / close door 4 of the drawer body 2 into the heating chamber 3 of the cooker body 1. It is attached to the open / close door 4.

  In the heating cooker as one embodiment of the present invention described above, among the operations of the opening / closing door 4, the opening initial stage where the opening / closing door 4 begins to open, the opening end stage where the opening / closing ends, the initial stage when closing begins, and As shown in FIG. 5, the opening / closing door 4 moves at a speed slower than that of the middle stage of the opening / closing operation by the control unit (FIGS. 3 and 4) as the moving speed control means in at least one of the closing and closing periods. . As described above, since the opening / closing door 4 moves at a slow speed in the initial stage or the final stage of the opening / closing operation, not only can the heated object 6 be prevented from falling due to the impact of the opening / closing operation, but also the liquid to the heated object 6 can be prevented. In the case where the liquid is contained, liquid can be prevented from spilling due to the impact of the opening / closing operation.

  In other words, in the heating cooker according to one embodiment of the present invention, in the drawer push-in operation of the drawer body 2, the initial stage of the drawer that starts to move from the inside of the heating chamber 3, the end stage of the drawer, the inside of the heating chamber 3 from the outside The drawer 2 is pulled out by the control unit (FIGS. 3 and 4) as the moving speed control means as shown in FIG. It moves at a slower speed than the middle stage of the push-in operation. Thus, since the drawer body 2 moves at a low speed in the initial stage or the final stage of the drawer push-in operation, not only the object to be heated 6 can be prevented from falling down due to the impact of the drawer push-in operation. In the case where the liquid is contained in the liquid, it is possible to prevent the liquid from spilling due to the impact of the pull-in / push-in operation.

  Moreover, in the heating cooker as one embodiment of this invention, the control part (FIG. 3, FIG. 4) as a moving speed control means in the opening initial stage which the opening / closing door 4 begins to open among operation | movement of the opening / closing door 4. FIG. When the opening / closing door 4 moves at a speed slower than that of the middle stage of the opening / closing operation, the water vapor generated from the heated object 6 tends to be discharged from the heating chamber 3 to the outside after the heating. However, since the open / close door 4 moves at a low speed in the early stage of opening, the water vapor is surely discharged upward in the initial stage of opening, and is not discharged in front of the user. For this reason, it is possible to prevent water vapor generated from the heated food from hitting the user.

  In other words, in the heating cooker according to one embodiment of the present invention, in the drawer push-in operation of the drawer body 2, the control as the movement speed control means at the initial stage of the drawer starting to move out of the heating chamber 3. When the drawer body 2 moves at a slower speed than the middle stage of the drawer push-in operation by the section (FIGS. 3 and 4), the steam generated from the heated object 6 is discharged from the inside of the heating chamber 3 to the outside after the heating. Try to. However, since the drawer body 2 moves at a low speed in the initial stage of the extraction, the water vapor is reliably discharged upward in the initial stage of the extraction, and is not discharged in front of the user. For this reason, it is possible to prevent water vapor generated from the heated food from hitting the user.

  FIG. 12 is a side cross-sectional view of a heating cooker parallel to the drawing direction of the drawer as an embodiment of the present invention, and is a view showing the state of discharge of water vapor in the initial stage of opening.

  As shown in FIG. 12, since the opening / closing door 4 starts to open at a relatively slow speed in the initial opening of the operation of opening the opening / closing door 4, the steam P heated to a high temperature filled in the heating chamber 3 is safely discharged. It can be discharged out of the heating chamber 3 in a state. Here, the safe state is that the high-temperature steam P to be discharged is not in front of the cooker body 1, that is, not in the direction toward the user who takes out the heated food as the article to be heated 6. The state which is discharged | emitted upwards along the front wall of the container main body 1 between the front wall and the opening-and-closing door 4, and the high temperature water vapor | steam is said not to be discharged | emitted in the direction which goes to a user.

  FIG. 13 is a side cross-sectional view of a heating cooker parallel to the drawing direction of the drawer as a comparative example of the present invention, and is a view showing the state of discharge of water vapor in the initial stage of opening.

  As shown in FIG. 13 with respect to FIG. 12, when the opening / closing door 4 starts to open at a relatively high speed in the initial opening of the operation of opening the opening / closing door 4, the high-temperature steam P discharged is the cooker body 1. In addition to being discharged to the upper side, it is discharged forward, that is, in a direction toward the user who takes out the heated food as the article 6 to be heated.

  In the above-described embodiment, the drawer body 2 is configured to include the heating container 5 that is attached to the open / close door 4 and that holds the fixed mounting table 5a and accommodates the article 6 to be heated. The drawer body 2 may be configured to move in conjunction with the opening / closing operation of the opening / closing door 4. In this case, in the above embodiment, the opening / closing door 4 is configured to slide (linearly move) by the moving mechanism. However, the opening / closing operation is performed when the opening / closing door 4 is rotated, and interlocked with the rotation. Then, the drawer body 2 may be configured to move. Even if comprised in this way, the effect similar to said embodiment can be achieved.

  In the above embodiment, the fixed mounting table 5a is adopted. However, the present invention may be applied to a high-frequency heating cooker that employs a rotating mounting table without using the rotating antenna 15. Even in this case, the same effect as the above-described embodiment can be achieved. Moreover, even if a heating source such as an additional heater different from the high-frequency heating source is provided in the cooker body 1, the same effects as those in the above embodiment can be achieved.

  Furthermore, in the heating cooker as one embodiment of the present invention described above, the control unit (FIGS. 3 and 4) as the moving speed control means is in the initial stage of opening when the door 4 starts to open as shown in FIG. In addition, the moving speed of the door 4 is gradually accelerated, and a door driving motor (DC motor) 16 as a driving means is controlled so that the drawer body 2 vibrates and moves as shown in FIGS. ing. By doing in this way, since the drawer body 2 on which the heated article 6 is placed vibrates and moves in the early stage of opening, it is possible to prevent the occurrence of bumping phenomenon that is difficult for the user to recognize. For this reason, it is possible to prevent the risk of an accident that the user suddenly hits the high-temperature water vapor and burns. Even if it is in the state immediately before having the factor which causes the bumping phenomenon by heating the article 6 to be heated, it is possible to prevent the bumping phenomenon from occurring until the door 4 is fully opened. Thereby, when taking out the heated to-be-heated material 6, it is in a safe state.

  In the case of the above-described embodiment, the control unit (FIGS. 3 and 4) serving as the movement speed control means sets the movement speed of the opening / closing door 4 at a predetermined cycle at the beginning of opening, as shown in FIG. By accelerating / decelerating, the door driving motor 16 as a driving means is controlled so that the drawer body 2 vibrates and moves. However, the door driving motor 16 as the driving means may be controlled by a method different from that of the above embodiment as long as the fine vibration as shown in FIG. Alternatively, an additional driving means for giving a slight vibration to the drawer body 2 may be provided.

  The embodiment disclosed above should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above embodiments but by the scope of claims, and includes all modifications and variations within the meaning and scope equivalent to the scope of claims.

It is a perspective view showing composition of an outline appearance of a cooking-by-heating machine as one embodiment of this invention. It is a figure which shows schematic structure of the heating cooker containing the side surface partial cross section parallel to the drawer direction of a drawer | drawing-out body as one embodiment of this invention. It is a block diagram which shows control of the motor for the doors of a cooking-by-heating machine as one embodiment of this invention. It is a figure which shows the control flow at the time of opening operation | movement of the door of a heating cooker as one embodiment of this invention. It is a figure which shows the relationship between the moving distance and moving speed of the door of a heating cooker as one embodiment of this invention. It is a figure which expands the part shown by VI in FIG. 5, and shows the relationship between the moving distance and moving speed in the opening initial stage of an opening-and-closing door. It is a figure which shows the fine vibration given to a drawer body in the opening initial stage of the opening-and-closing door of a heating cooker as one embodiment of this invention. It is a figure which shows the state which the opening-and-closing door closed in side sectional drawing of the heating cooker parallel to the drawer | drawing-out direction of a drawer | drawing-out body as one embodiment of this invention. It is a figure which shows the state of an opening initial stage or a closing final stage in operation | movement of an opening-and-closing door by side sectional drawing of the heating cooker parallel to the drawer | drawing-out direction of a drawer | drawing-out body as one embodiment of this invention. It is a figure which shows the state of an open period or a closed period in operation | movement of an opening-and-closing door by side sectional drawing of the heating cooker parallel to the drawer direction of a drawer | drawing-out body as one embodiment of this invention. It is a figure which shows the state of an opening end stage or a close initial stage in operation | movement of an opening-and-closing door by side sectional drawing of the heating cooker parallel to the drawer | drawing-out direction of a drawer | drawing-out body as one embodiment of this invention. It is a figure which shows the discharge | emission state of the water vapor | steam in an opening initial stage with side sectional drawing of the heating cooker parallel to the drawer | drawing-out direction of a drawer | drawing-out body as one embodiment of this invention. It is a figure which shows the discharge | emission state of the water vapor | steam in an opening initial stage with the side sectional drawing of the heating cooker parallel to the drawer | drawing-out direction of a drawer body as a comparative example of this invention.

Explanation of symbols

  1: Cooker body, 2: drawer body, 3: heating chamber, 4: open / close door, 5: heating container, 5a: fixed mounting table, 6: object to be heated, 11: microwave generator, 12: magnetron, 13 : Waveguide, 14: Feed port, 15: Rotating antenna, 16: Door drive motor (DC motor), 17: Rack, 18: Tray.

Claims (1)

A cooker body having a heating chamber;
A mounting table for mounting an object to be heated;
A drawer body that holds the mounting table and is arranged movably inside and outside the heating chamber of the cooking device body so that the mounting table can be pulled out from the heating chamber of the cooking device body;
Driving means for moving the drawer body;
A moving speed control means for controlling the driving means to change the moving speed of the drawer,
The moving speed control means includes a drawer initial stage where the drawer body starts to move out of the heating chamber of the cooker body, a drawer final stage where the drawer body moves out of the heating chamber of the cooker body, and the drawer body. At the beginning of the press-in which starts to move in from the outside of the heating chamber of the cooker body, and at least one time selected from the group consisting of the end of press-in when the drawer body finishes moving from the outside of the heating chamber of the cooker body The drive means is controlled so that the moving speed of the drawer body is a relatively slow speed compared to the moving speed of the drawer body in the middle stage of the drawer push-in operation,
Further comprising an opening / closing door for opening and closing the heating chamber, the drawer body moves in conjunction with the opening / closing operation of the opening / closing door,
The moving speed control means gradually accelerates the moving speed of the opening and closing door at the beginning of opening when the opening and closing door starts to open, and adds the moving speed of the opening and closing door at a predetermined cycle when the opening and closing door starts to open. A cooking device that controls the driving means so that the drawer body vibrates and moves by being decelerated .

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