JP2005188880A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooker which can be used safely without spouting heating air when a door is opened by a user while cooking. <P>SOLUTION: The heating cooker has a placer 3 for placing a cooking object 2, a cooking chamber 1 with a suction port 4 and a blow-out port 5 for storing a the placer 3, a circulation air passage 7 for communicating to the suction port 4 and the blow-out port 5, an air blow means 8 for making air in the circulation air passage circulate from the suction port 4 to the blow-out port 5, a heating means 9 for heating the air in the circulation air passage, the door 10 for opening and closing an opening part of a cooking chamber front face and a door closure means for closing the door and the opening part of the cooking chamber. Thus, as the door can not be opened during cooking, the heating cooker can be used safely. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a cooking device used in a kitchen such as a general household.

  Conventionally, as an example of this type of cooking device, there is a configuration as shown below (see, for example, Patent Document 1).

  A cooking device shown as a conventional example performs cooking of an object to be cooked with hot air, and a convection oven or the like is well known.

  FIG. 8 shows a configuration of a conventional cooking device. The cooking device 28 is provided with a cooking chamber 28 inside the main body 27, and the upper and lower ceiling walls and the bottom wall of the cooking chamber 28 which is a hexahedron and the inner walls on the left and right and the back other than the front are configured with fixed side walls. Is constituted by a door 29 that can be freely opened and closed.

  A blower 30 is installed on the outside of the inner wall, and the air sucked from the inner wall by the blower 30 is blown out from the outlet 32 of the upper ceiling wall through the duct 31. A heater 33 is provided on the downstream side of the blower in the duct 31. The circulating air is heated by the heater 33 while the blower 30 circulates the air in the cooking chamber 28. And cook the food to be cooked.

  The air returns to the duct after heating the food in the cooking chamber, is newly heated by the amount of heat from the heater, and the heated air can be fed into the cooking chamber one after another.

Since the heated air fills the cooking chamber warehouse almost uniformly, the temperature unevenness in the cooking cabinet hardly occurs and cooking can be performed uniformly.
JP 2003-314826 A

  However, in the conventional configuration, in order to heat the food with heated high-temperature air, it is circulated while filling the cooking chamber with heated air, but when the door is opened in a high-temperature state during cooking, If hot air blows out of the cooking chamber and touches the human body, there is a risk of burns. Moreover, even if the operation of the cooking device is urgently stopped, the hot air circulates for a while, and thus there is a problem that it is necessary to take sufficient safety measures against the hot air during cooking.

  This invention solves the said conventional subject, and it aims at providing the technique used safely in the heating cooker which can improve cooking performance by air circulation heating, and anyone can be delicious and can perform good-quality cooking. .

  In order to solve the above-described conventional problems, a heating cooker according to the present invention stores a placing tool for placing a food and a placing tool, a cooking chamber having a suction port and a blow-out port, a suction port, and a blow-out. A circulation air passage communicated with the mouth, a blower means for circulating the air in the circulation air passage from the suction opening to the blowout opening, a heating means for heating the air in the circulation air passage, and a door for opening and closing the front opening of the cooking chamber And a cooking device comprising door closing means for locking the door so that the door is not easily opened when the door is closed at the opening of the cooking chamber.

  The cooking device of the present invention prevents the user from accidentally opening the door during cooking, and the heated air does not blow out toward the human body, so that the appliance can be used safely.

  1st invention is the cooking chamber which heats a cooking thing, the heating apparatus which supplies the high temperature gas heated to the cooking chamber, the ventilation means which circulates the heating air heated by the heating apparatus to a cooking chamber, and a cooking chamber front surface A door that opens and closes the opening and a door closing means that locks the door so that the door is not easily opened when the door is closed to the cooking chamber opening. Since it cannot be opened, it is possible to prevent the heated air from being accidentally ejected to the outside.

  In the second invention, in particular, the door closing means of the first invention is configured so as to be interlocked with the driving of the air blowing means, so that the door is closed while the air blowing means is operating during the high temperature heating cooking. Thus, it is possible to prevent the heated air from being ejected to the outside.

  In the third invention, in particular, the drive mechanism of the air blowing means is also used as a driving force for operating the door closing means of the first invention, so that the door is closed while the air blowing means is in operation. Since the door is closed during cooking, it is possible to prevent the heated air from being accidentally ejected to the outside.

  In particular, the fourth aspect of the invention provides air blowing by operating the air moving body by using the circulating air generated when the air blowing means operates the door closing means of the first invention, and using the movement of the air moving body as the door closing means. While the means is in operation, the door is closed, and during high-temperature cooking, the door is closed, so that the heated air can be prevented from being accidentally ejected to the outside.

  The fifth aspect of the invention is, in particular, to provide a cooking stop switch on the heating cooker operation panel in any one of the second to fourth aspects of the invention, and to operate the cooking stop switch to stop the blowing means. Even during cooking, the door closing means is released and the door can be opened safely.

  In particular, the sixth aspect of the invention includes the door opening / closing detection means in any one of the first to fifth aspects of the invention, and controls so that the cooking operation cannot be performed when there is an instruction to open the door from the detection means. By providing the control means, it is possible to prevent hot air from circulating and leaking outside while the door is open.

  In a seventh aspect of the present invention, in particular, in any one of the first to sixth aspects of the present invention, the cooking chamber has an illumination means, and the interior is illuminated during cooking so that the user can cook the cooking device in the cooking state. It can be seen at a glance that the inside of the cooking chamber can be observed without opening the door.

(Embodiment 1)
FIG. 1: shows the cross-sectional view of the heating cooker in the 1st Embodiment of this invention. In FIG. 1, the cooking chamber 1 has a placement device 3 on which a food item 2 is placed, a suction port 4 and a blowout port 5. The suction port 4 and the blowout port 5 are connected by a circulation air passage 7 that communicates with the housing 6. In the circulation air passage 7, there is a blowing means 8 that creates and circulates hot air. The heating means 9 heats the air in the circulation air path 7 to produce hot air. The door 10 is installed to close the front opening of the cooking chamber 1 in order to put in and out the food. In general, the door 10 and the mounting device 3 are integrated in a roaster or the like.

  In the embodiment of the present invention, a sirocco fan driven by a cornering motor is used as the blowing means 8 and a sheathed heater with fins having good heat dissipation is used as the heating means 9. Others may be used.

  The casing 6 is provided with a solenoid 12 for driving a door lock pin 11 for closing the door. The solenoid 12 is driven and controlled by a control means (not shown), and a locking member 13 provided along with the door is provided. The door lock pin 11 is inserted into and removed from the mating hole.

  The high temperature heating of the present invention can be heated up to 350 degrees in temperature. For baking, it is usually sufficient if it is about 350 degrees, so it is set as a controllable range in the embodiment of the present invention. Higher temperatures are possible if necessary.

  Although cooking sequences and control means are not shown, automatic cooking is also possible.

  About the cooking-by-heating machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. First, although the features of cooking using the high-temperature heated air of the present invention are as described above, when the user opens the door for some reason during cooking, as described above, high-temperature heated air from the cooking chamber However, it is dangerous because it leaks out from the gap between the front opening of the cooking chamber.

  In the present invention, the air blowing means is operated by the control means (not shown), and during cooking, the solenoid is driven to engage the door lock pin with the engagement hole of the door lock member and close the door so that it does not open. To do. In the cooking process, when the blowing means is stopped and the circulation of the high-temperature air is finished, the lock pin is removed from the mating hole of the locking member of the door by the control means, and the door can be opened.

  As described above, the door closing means prevents the door from being accidentally opened during the hot air circulation heating cooking by the blowing means.

  As described above, in the present embodiment, by providing a door closing means on the door portion of the front opening in the cooking chamber, the door is not accidentally opened during high temperature cooking. Unsafe to human body such as burns can be prevented.

  Note that a cooking stop switch is provided on the operation panel (not shown), and by controlling the blower means to operate by operating the cooking stop switch, the door is also closed and the door can be opened safely. It is also possible to make it possible.

(Embodiment 2)
FIG. 2 is a cross-sectional view of the cooking device according to the second embodiment of the present invention. The basic configuration of the second embodiment is the same as that of the first embodiment, and the description of the same parts is omitted.

  The difference from the first embodiment is that the driving source of the door closing means 14 uses the force of the driving device of the air blowing means. As shown in FIG. 3, the rotating disk 19 of the door lock member 18 is rotated through the pulley 16 and the belt 17 fixed to the motor shaft 15 by the rotational driving force of the motor that rotates the fan of the air blowing means 8. The door lock member 18 is composed of a lock member that is supported by the fixed shaft 20 and has a flange portion 21 for locking the door, as well as the rotary plate 19 that is rotatably supported by the fixed shaft 20 provided in the cooking chamber. A force is transmitted to the member 18 by frictional sliding. The lock member 18 is biased by a spring material (not shown) in the direction opposite to the rotation direction of the rotating disk. When the motor of the air blowing means is not rotating, the lock member closes the door by the force of the spring material. It is urged to the position that does not. When the blower is driven and the motor rotates, the lock member rotates relative to the rotating shaft by sliding friction with the rotating disk, and engages with the closing portion 22 provided at the end of the mounting device 3 connected to the door. The door is locked.

  The operation will be described below. During high-temperature cooking, the air blower is driven and the motor is running. As described above, the door is closed by the door lock member and cannot be opened, so the door is accidentally opened and the heated air leaks out. Nothing will happen. When the air blowing means stops, the door closing by the door lock member is automatically released.

  As described above, in the present embodiment, the drive source for operating the door closing means is also used as the driving mechanism of the air blowing means, so that the door is closed while the air blowing means is in operation, and high temperature cooking is performed. Since the door is closed inside, it is possible to prevent the heated air from being accidentally ejected to the outside.

  Further, since the drive means of the door closing mechanism also serves as the air blowing means, the material cost can be reduced and the control system can be simplified.

(Embodiment 3)
FIG. 4 is a cross-sectional view of a heating cooker according to the third embodiment of the present invention. The basic configuration of the third embodiment is the same as that of the first embodiment, and the description of the same parts is omitted.

  The difference from the first embodiment is that the driving force of the door closing means uses the circulating air generated by the air blowing means. During the high temperature cooking, the air blowing means is driven, and the cooking is performed with the high temperature air by the circulating air as described in the first embodiment, but the circulating air in the casing portion of the heating cooker as shown in FIGS. Winding bodies 23 that are operated by circulating wind are made on the air path. The wind moving body is integrally provided with a hook portion for locking the door, and the air blowing body is operated by the reaction force received from the circulating wind by driving the air blowing means, and the door provided in the door portion is closed. The door is closed to the housing part by engaging with the engaging part 24.

  As described above, in the present embodiment, the door closing means is operated by the circulating wind generated by operating the air blowing means to move the air moving body to the door closing means, so that the door is closed while the air blowing means is in operation. Since the door is closed during high temperature cooking, the heated air can be prevented from being accidentally ejected to the outside.

(Embodiment 4)
FIG. 6 is a cross-sectional view of a cooking device according to the fourth embodiment of the present invention. The basic configuration of the fourth embodiment is the same as that of the first embodiment, and the description of the same parts is omitted.

  The difference from the first embodiment is that it has a door open / close detection means for detecting the open / closed state of the door. As shown in FIG. 6, a contact-type open / close detection switch 25 is provided at the joint between the door and the cooking chamber, and detects whether the door is closed or open.

  The operation and action will be described below. When the door open / close detection switch detects that the door has been opened, high-temperature circulation with the door open by preventing heating cooking from starting even if a cooking operation is performed by a control means (not shown). It is safe with no wind, and can prevent cooking failures.

  As the door opening / closing detection means, the contact type switch described in the embodiment of the present invention can be used as long as it can detect whether the door is open.

(Embodiment 5)
FIG. 7 is a cross section of a heating cooker according to the fifth embodiment of the present invention. The basic configuration of the fifth embodiment is the same as that of the first embodiment, and the description of the same parts is omitted.

  The difference from the first embodiment is that the interior of the cooking chamber has an illumination lamp and the interior is illuminated during cooking. As shown in FIG. 7, an illumination device 26 is provided on the back wall of the cooking chamber, and the entire cooking chamber can be illuminated.

  The operation and action will be described below. When the door is closed and cooking is started, the blowing means is driven and the door is closed as described above, but the lighting device in the cooking chamber is operated by the control means (not shown), and the entire cooking chamber is operated. Since the inside of the cooking chamber can be well observed from the outside through the glass portion of the door, the cooking state can be grasped, and it is easy to confirm that cooking is in progress, so that it is not necessary to open the door during cooking.

  As described above, the cooking device according to the present invention includes a cooking chamber that heats the food, a heating device that supplies high-temperature gas heated to the cooking chamber, and heated air that is heated by the heating device. By having the door closing means between the front opening and the door that opens / closes the front opening of the cooking chamber and the blowing means to be circulated, the door cannot be opened from the cooking chamber while the heated air is circulated by the blowing means. Air can be prevented from being ejected to the outside. This allows safe use of the instrument.

  That is, it is possible to provide a cooking device that can be cooked deliciously and safely by anyone.

Cross-sectional view of the heating cooker in Embodiment 1 of the present invention Cross-sectional view of the heating cooker in Embodiment 2 of the present invention The other cross-sectional view of the heating cooker in Embodiment 2 of this invention Cross-sectional view of the heating cooker in Embodiment 3 of the present invention The top view of the door closing means in Embodiment 3 of this invention Cross-sectional view of the heating cooker in Embodiment 4 of the present invention Cross-sectional view of the heating cooker in the fifth embodiment of the present invention Figure of conventional cooking device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cooking chamber 2 Cooked thing 3 Placement instrument 4 Suction inlet 5 Outlet 6 Housing | casing 7 Circulating air path 8 Blowing means 9 Heating means 10 Door 11 Door lock pin 12 Solenoid 13 Locking member 14 Door closing member 15 Motor shaft 16 Pulley DESCRIPTION OF SYMBOLS 17 Belt 18 Door lock member 19 Turntable 20 Fixed shaft 21 Gutter part 22 Closure part 23 Winding body 24 Door closure engagement part 25 Open / close detection switch 26 Illumination device

Claims (7)

A placing device having a suction port and a blow-out port for placing the food, a cooking chamber for storing the placement device, a circulation air passage communicating with the suction port and the blow-out port, and the circulation air passage Air blowing means for circulating the air from the suction port to the blowout port, heating means for heating the air in the circulation air passage, a door for opening and closing the cooking chamber front opening, and the door opening for the cooking chamber A cooking device comprising door closing means for locking the door so that the door is not easily opened when the door is closed. The cooking device according to claim 1, wherein the door closing means is interlocked with the air blowing means. The cooking device according to claim 2, wherein the door closing means is also driven by a driving mechanism of the air blowing means. The cooking device according to claim 2, wherein the door closing means is driven by an air moving body that is operated by circulating air generated by the air blowing means. The cooking device according to any one of claims 2 to 4, further comprising a cooking stop switch, wherein the blower means is stopped and the door closing lock is released by operating the cooking stop switch. The cooking device according to any one of claims 1 to 5, further comprising a control unit that includes a door opening / closing detection unit and performs control so that a cooking operation cannot be performed when the door is opened. The heating cooker according to any one of claims 1 to 6, further comprising an illumination unit in the cooking chamber.

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