JP6168788B2 - Cooker - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a cooking device such as a steam convection oven, and more particularly to a cooking device that abuts against the inner surface of a door in order to maintain a seal between the cooking chamber and the door when the door is closed. With regard to the packing provided along the edge of the opening, the cross-sectional shape of the packing is devised so that it is less likely to be fatigued or deteriorated over a long period of repeated use.

  The cooking device is a device for cooking food, and is configured to include a cooking chamber for heating the food in a housing having an open / close door on the front, in addition to the electric heater for heating, A blower fan, a control circuit, and the like are provided. Further, in the case of a steam convection oven, a steam generator for steam heating is provided. Generally, the front open / close door has a double structure with an inner door made of heat-resistant glass inside the outer door that forms a part of the housing. It is a mechanism that cooks with the edges sealed. Packing is provided along the opening edge at the location facing the inner door at the opening edge of the cooking chamber, and the cooking chamber is sealed by the inner door being pressed against the packing during cooking. .

  FIG. 1 is a perspective view illustrating an example of the heating cooker 10 and shows a state in which the open / close door 13 on the front surface of the housing 11 is opened rightward. The cooking chamber 12 forms a rectangular parallelepiped storage chamber opened to the front side, and a packing 20 is provided along the periphery of the opening edge 12a. On the other hand, the open / close door 13 has an inner door 13 b made of heat-resistant glass inside an outer door 13 a that forms a part of the housing 11. When the open / close door 13 is closed, the inner door 13 b is attached to the packing 20. It is pressed and seals the interior space of the cooking chamber 12 to prevent hot air and steam from leaking. During operation, the temperature in the cabinet becomes high and may reach 300 ° C. during cooking.

  FIG. 2 shows a cross-section of the packing 20 provided along the upper edge 12a of the cooking-cooker opening in a conventional heating cooker in a state where the packing 20 is not pressed by the inner door. The side that contacts the door (right side in the figure) has a hollow and thin fan shape, and the side (the upper side in the figure) 21 facing the space OUT outside the warehouse is the front (in the figure, As it goes to the right, the surface is inclined while gradually turning toward the side (lower side in the figure) of the space IN inside the warehouse, and the side facing the space IN (in the figure) , Lower side) 22 is a surface extending substantially linearly toward the front. The portion 23 of the packing 20 on the cooking tub edge mounting side has a thick rectangular shape having a hollow portion for absorbing deformation when the cooking cooking chamber opening edge 12a is fitted into the packing mounting groove 12b. Yes. An alternate long and two short dashes line YY indicates a position where the inner surface of the inner door 13b comes when the door 13 is closed.

  FIG. 3 shows a state in which the packing 20 of FIG. 2 is pressed by the inner door 13b when the open / close door 13 is closed, and is the side facing the space IN on the inner side of the packing 20 (the lower side in the drawing). ) 22 is bent in a zigzag manner. Since this portion leads to the high-temperature space IN in the cabinet, the material is likely to be deteriorated or cracked due to compressive strain at a high temperature.

  The present invention aims to eliminate the above-mentioned problems, and in a cooking device, by improving the shape of the packing for pressing and sealing the opening edge of the cooking chamber with the inner door, It is an object of the present invention to provide a packing that is unlikely to cause deterioration of materials due to operation of a vessel.

In order to solve the above problems, the cooking device according to the present invention is provided between the opening edge of the cooking chamber and the door to perform cooking in a state where the opening of the cooking chamber is pressed and sealed with the door. A cross-sectional shape of the packing to be provided forms a base portion having a thick rectangular shape for fitting into the packing mounting groove at the opening edge of the heating cooking chamber, and a thick portion around the central portion of the rectangular shape It has a hollow part for absorbing deformation at the time of fitting in the remaining shape, and a side facing the bottom side of the rectangular packing mounting groove is curved inward so that the escape part for absorbing deformation at the time of fitting A first part having a first part, a second part extending in an arc from the front end of the first part facing the cooking-cooker inner space, and gradually bending forward from the cooking-cooker outer space, U on the way from the front end facing the outer space of the cooking stove A closed hollow figure surrounded by a first part, a second part and a third part by connecting a third part extending forward of the outer space of the cooking chamber via a bent part of the shape It is characterized by that.

  In the cooking device according to the present invention, the third portion can be formed in a shape in which straight portions are formed on both front and rear sides of the U-shaped bent portion.

  In the heating cooker according to the present invention, the U-shape of the U-shaped bent portion of the third portion is deeper on the side closer to the first portion and shallower on the side farther from the first portion. It can be.

  According to the present invention, in the heating cooker, the cross-sectional shape of the packing provided between the opening edge of the heating cooker and the door is directed outward on the side facing the inner space of the heating cooker. Since it is an arc shape that gradually bends, and on the side facing the outer space of the cooking chamber, a U-shaped bent part is interposed in the middle, extending forward, and forming a hollow figure that is connected and closed, so the deformation of the hollow part It has excellent conformability and sealing performance as a packing, and on the high heat side, a simple bending of the arcuate surface does not cause an abnormal deformation force on the packing member itself, and on the normal temperature side, the pressure deformation in the front-rear direction is U-shaped. Absorption of the bent portion prevents abnormal deformation force from acting on the packing member itself, and the deterioration of the packing is unlikely to occur even for long-term use.

It is a perspective view which shows an example of a heating cooker. It is sectional drawing which illustrates packing in the conventional heating cooker. It is sectional drawing which illustrates the effect | action state of packing in the conventional heating cooker. It is sectional drawing which illustrates 1st embodiment of the packing in the heating cooker by this invention. It is sectional drawing which illustrates the effect | action state of 1st embodiment of the packing in the heating cooker by this invention. It is sectional drawing which illustrates 2nd embodiment of the packing in the heating cooker by this invention. It is a perspective view of the rack frame which provided the core temperature sensor holding | maintenance part in embodiment of the heating cooker by this invention.

  Below, the heating cooker by this invention is demonstrated, referring drawings. The cooking device according to the present invention is the same as the general cooking device except for the improvements according to the present invention, so the outline will be described first with reference to FIG. The housing 11 of the heating cooker 10 is provided with an open / close door 13 on the front surface (front side when viewed from the user). The open / close door 13 includes an outer door 13a that forms a part of the housing 11 and an inner side thereof. It has a double door structure with an inner door 13b made of heat-resistant glass. Inside the housing 11, a rectangular parallelepiped container-shaped heating cooking chamber 12 is provided so as to open to the front side, and the ingredients to be cooked are put into this and heated. A packing 30 is provided along the periphery of the opening edge 12 a of the cooking chamber 12. In the state where the open / close door 13 is closed, the inner door 13b is pressed against the packing 30 to seal the interior space of the cooking chamber 12 and prevent leakage of hot air and steam.

  Since the cooking device according to the present invention is characterized by the structure of the packing, the structure of the packing will be described below with reference to the drawings.

FIG. 4 is a cross-sectional view illustrating a first embodiment of the packing in the cooking device according to the present invention. In this embodiment, the packing 30 provided along the upper edge 12a of the cooking-cooker opening has a portion on the cooking-cooker edge mounting side to the packing mounting groove 12b of the cooking-cooking opening edge 12a. forms a base portion 33 exhibiting a substantially rectangular shape thick to fit, the hollow portion 33a for deformation absorbing at fitting in the form of the central part in the thickness of the portion thereof around the rectangle remains In addition, the side facing the bottom side of the rectangular packing mounting groove is curved inward to have a relief portion 33b for absorbing deformation when fitted . The portion of the packing 30 that is in contact with the inner door (right side in the figure) is a hollow, thin, generally fan-shaped portion that faces the space IN on the inner side when not pressed by the inner door 13b. The side (the lower side in the drawing) is arcuate while gradually bending from the front end of the base portion 33 facing the cooking-cooker inner space toward the front (right in the drawing) of the cooking-cooker outer space OUT. The side (in the drawing, the upper side) facing the outer space OUT is an inclined surface portion 31 that extends from the front end portion of the base 33 facing the outer cooking space to a U-shaped bent portion 32a. Is a bent surface 32 extending forward (in the drawing, to the right) of the cooking-cooker outer space OUT. The base 33, the inclined surface 31, and the bent surface 32 form a closed figure having a hollow portion 35 in an interior that is sequentially connected to each other, and has a moderate cushioning property as a packing. A two-dot chain line YY indicates a position where the inner surface of the inner door 13b comes when the door 13 is closed.

  FIG. 5 shows a state in which the packing 30 of FIG. 4 is pressed by the inner door 13b when the open / close door 13 is closed, and is the side facing the space IN on the inner side of the packing 30 (the lower side in the drawing). ), The arcuate surface is simply bent, and the packing member itself is not deformed excessively. Further, the bent surface 32 on the side facing the space OUT on the outer side of the packing 30 (upper side in the drawing) is bent and deformed at the U-shaped portion to absorb the pressing force in the front-rear direction (left-right direction in the drawing). Thus, unreasonable deformation does not occur in the packing member itself. As can be seen from FIGS. 4 and 5, if straight portions having a predetermined dimension are formed on both front and rear sides of the U-shaped bent portion 32 a, the inner wall of the hollow portion 35 of the packing 30 when the U-shaped portion is bent. Since there is a margin for not hitting, it is possible to take a deformation margin that does not cause deterioration of the material.

  FIG. 6 is a cross-sectional view illustrating a second embodiment of the packing in the cooking device according to the present invention. In this embodiment, the U-shaped bent portion 32a on the side facing the space OUT on the outer side of the packing 30 has a leg portion 32a1 on the side closer to the base portion 33 and a leg portion 32a2 on the side farther from the base portion 33. And the depth is different, and the leg 32a2 is shallower than the leg 32a1. If it does in this way, since the inside of a U-shape will be in the state opened more, it will become easy to clean, and there will also be the convenience that a large space margin can be taken with respect to opening and closing of a door.

  Next, further ideas in the embodiment of the present invention will be described. In this type of cooking device, it is often necessary to measure the core temperature of the food to be heated (the temperature inside the thick food). Therefore, this type of cooking device is often provided with a core temperature sensor so that cooking can proceed while checking the degree of cooking. It is desirable to keep the core temperature sensor out of the way when not used for measurement. FIG. 7 illustrates an embodiment in which a holder for holding the core temperature sensor when not in use is provided. As shown in FIG. 1, rack frames are provided in the vicinity of the left and right wall surfaces in the cooking chamber 12 of this type of cooking device 10 (in FIG. 1, the rack frame 50 in the vicinity of the right wall surface is provided. The tray which put the to-be-heated food material in the desired location of the rail of this rack frame 50 is arrange | positioned. FIG. 7 is an illustration of the right rack frame 50 as viewed from the right front, and five tray holding rails are welded to two vertical columns 51. A hole 51 a for inserting the temperature detection unit 41 of the core temperature sensor 40 is formed in the rear side sheet metal bending surface of the column 51 under the front column 51, and the core temperature sensor is formed in the front sheet metal bending surface of the column 51. A notch 51b for receiving 40 handle portions 42 is provided at a position slightly higher than the position of the hole 51a. The lower side of the notch 51b is slightly recessed so that the handle 42 can be stably placed. Accordingly, when the core temperature sensor 40 is not used, the core temperature sensor 40 can be inserted slightly obliquely and placed. In this case, the hole 51 into which the temperature detection unit 41 of the core temperature sensor 40 is inserted may be a simple round hole. However, the Dalma hole as shown in the drawing is more convenient in terms of both ease of insertion and holding stability. is there. Further, the notch 51b is not limited to the shape opened to the right as shown in the figure, but can be a large closed hole around.

  As described above, in the embodiment of the heating cooker of the present invention, the base for attaching the cross-sectional shape of the packing where the opening edge of the cooking chamber is sealed with the inner door to the cooking chamber opening edge. A first part comprising: a second part extending in an arc from the front end of the first part facing the inner space of the cooking chamber to the front of the outer space of the cooking chamber; Because it is connected to the third part extending in front of the cooking-cooker outer space through a U-shaped bent part in the middle from the front end facing the cooking-cooker outer space, so that it is a closed hollow figure, It has excellent conformability as a packing due to deformation of the hollow part, and on the high heat side, a simple bending of the arcuate surface does not cause abnormal deformation force on the packing member itself, and pressure deformation in the front-rear direction on the normal temperature side U-shaped bent part absorbs Abnormal deformation force to the packing of the member itself does not act by Rukoto, deterioration of the packing is less likely to occur even for long-term use.

  DESCRIPTION OF SYMBOLS 10 ... Cooking device, 11 ... Housing, 12 ... Cooking cooker, 12a ... Opening edge, 12b ... Packing installation groove, 13 ... Opening / closing door, 13a ... Outer door, 13b ... Inner door, 30 ... Packing, 31 ... Inclination 32, a bent surface, 32a, a U-shaped bent portion, 33, a base portion, and 35, a hollow portion.

Claims (3)

In a heating cooker that performs cooking while the opening of the cooking chamber is pressed and sealed with a door, the sectional shape of the packing provided between the opening edge of the cooking chamber and the door is defined as the cooking chamber opening end. Forms a base with a thick rectangular shape to be fitted into the packing packing groove on the edge, and absorbs deformation when fitted in a shape in which a thick portion remains around the center of the rectangle . A first portion having a hollow portion and a side facing the bottom side of the rectangular packing mounting groove curved inward and having a relief portion for absorbing deformation at the time of fitting; and A second part extending in an arc while gradually bending forward from the front end part facing the inner space of the one portion of the cooking chamber to the outer space of the cooking chamber, and facing the outer space of the cooking chamber of the first portion Heated from the front end through a U-shaped bend Heat cooking characterized in that a closed hollow figure surrounded by the first part, the second part and the third part is formed by connecting the third part extending in front of the outer space of the warehouse. vessel. The cooking device according to claim 1, wherein the third portion is formed with straight portions on both front and rear sides of the U-shaped bent portion. The cooking device according to claim 1, wherein the U-shaped bent portion of the third portion is deeper on the side closer to the first portion and farther from the first portion. A heating cooker characterized by exhibiting a shallower shape on the side.

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