JP7237757B2 - heating cooker - Google Patents

Description

TECHNICAL FIELD The present invention relates to a heating cooker such as a steam convection oven that heats and cooks foodstuffs with hot air.

Patent Literature 1 below discloses a heating cooker that heats and cooks ingredients with hot air. Equipped with a convection fan that circulates the air inside, a steam generator that supplies steam to the inside of the cooking chamber, and a pair of left and right support frames that support the trays containing ingredients in the cooking chamber in a multi-tiered manner. . When cooking foodstuffs with this heating cooker, a plurality of trays containing foodstuffs are accommodated in the cooking chamber so as to be supported by a support frame in a multistage manner, and a cooking program is executed by operating an operation panel. By executing the cooking program, the heater, convection fan, and steam generator operate, and the air in the cooking chamber becomes hot air and convects, and steam is supplied from the steam generator into the cooking chamber, The air in the chamber turns into steam-containing hot air and causes convection, and the foodstuffs on the tray accommodated in the cooking chamber are heated and cooked by the steam-containing hot air.

JP 2015-155777 A

When food is cooked in the cooking chamber of this heating cooker, the oil contained in the food scatters in the cooking chamber together with convection hot air, and the oil adheres to the peripheral wall and support frame of the cooking chamber. In this type of heating cooker, it is necessary to keep the inside of the cooking chamber clean at all times, and it is hygienically preferable to clean the cooking chamber, for example, every day it is used. Since the support frame of this heating cooker is formed by bending a sheet metal member, the scattered oil tends to adhere to the flat portion of the support frame and remain even after washing. In addition, since the support frame is detachably attached at a position adjacent to the side wall of the cooking chamber, the side wall of the cooking chamber cannot be cleaned unless the support frame is removed, making the work of cleaning the cooking chamber cumbersome. was SUMMARY OF THE INVENTION An object of the present invention is to prevent oil stains from adhering to a support frame that supports trays in a multi-tiered manner in a cooking chamber, and to facilitate cleaning of the interior of the cooking chamber.

In order to solve the above problems, the present invention provides a cooking chamber for cooking foodstuffs, a heater for heating the interior of the cooking chamber, a convection fan for convecting air in the cooking chamber, and a food material in the cooking chamber. A heating cooker provided with a pair of left and right support frames for supporting trays placed therein in a multistage manner in the vertical direction, wherein each of the pair of left and right support frames includes front and rear struts using a metal wire, and a front strut. and a rail using a metal wire rod that is installed between the rear pillars and supports the lateral edge of the tray, and the rear pillars are supported at the rear of the cooking chamber so as to be rotatable about the vertical axis. In addition, the present invention provides a heating cooker characterized in that the front portion of the support frame is detachably engaged with the front portion of the cooking chamber at a position for supporting the tray.

In the heating cooker configured as described above, each of the pair of left and right support frames is constructed between the front and rear struts using a metal wire rod and the front and rear struts to support the tray in the left-right direction. Since rails made of metal wire rods are provided to support the edges, oil that scatters during cooking is less likely to accumulate on the front and rear struts and rails made of metal wire rods, preventing oil stains after cleaning. less likely to remain on the support frame. In addition, the rear pillar is supported by the rear part of the cooking chamber so as to be rotatable about the vertical axis, and the front part of the support frame is detachably engaged with the front part of the cooking chamber at the position where the tray is supported. When cleaning the peripheral walls including the side walls in the cooking chamber, after the front part of the support frame is separated from the front part of the cooking chamber, the front part of the support frame is rotated around the vertical axis using the rear support as a fulcrum. By moving, the part hidden by the support frame in the cooking chamber can be washed without removing the support frame, and the cleaning workability in the cooking chamber can be improved.

In the heating cooker configured as described above, at least one of the front portion of the ceiling wall and the front portion of the bottom wall of the cooking chamber is engaged with at least one of the front upper portion and the front lower portion of the support frame at a position for supporting the tray. and a leaf spring member engageable with the engaging protrusion is provided on at least one of the front upper portion and the front lower portion of the support frame, and the leaf spring member is engaged with the engaging protrusion. Therefore, it is preferred to have the front of the support frame engage the front of the cooking chamber in a position to support the tray. In this case, the leaf spring member is disengaged from the engaging projection against the biasing force thereof, so that the front portion of the support frame can be rotated about the vertical axis, and the support frame supports the tray. It was possible to rotate easily from the position where

In the heating cooker configured as described above, the front strut is provided with a squeezing shape portion at a position corresponding to the stage position of the tray supported in a multi-tiered manner in the vertical direction, and the squeezing shape portion is provided with information on the stage position of the tray. Display is preferred. When this is done, it is possible to immediately visually recognize the information about the tray position without increasing the number of parts.

It is a front view of one embodiment of the heating cooker of the present invention. FIG. 2 is a front view in which the door of FIG. 1 is opened; It is a vertical cross-sectional view at the central portion in the front-rear direction. It is an AA sectional view. It is a BB sectional view. FIG. 3 is a perspective view showing a left support frame; Partially enlarged perspective view (a) of the inside of the cooking chamber when the front part of the left support frame is engaged with the engagement projection, and the front part of the left support frame is rotated to move from the engagement projection It is a partial expansion perspective view (b) in a cooking chamber when dissociated. It is a BB cross-sectional view when the partition plate and the support frame are removed. It is the left side view which removed the left panel of the housing so that the machine room could be seen. It is a block diagram of a control device.

An embodiment of the heating cooker of the present invention will be described below with reference to the accompanying drawings. The heating cooker of the present invention is called a steam convection oven, and heats and cooks foodstuffs by convection of hot air containing steam. As shown in FIG. 1, the heating cooker 10 has a machine room 12 on the left side of the housing 11 and a cooking chamber 20 for cooking foodstuffs in a portion of the housing 11 excluding the machine room 12. I have. As shown in FIG. 2, an opening 20a for taking in and out foodstuffs is provided in the front part of the cooking chamber 20, and a door 13 for opening and closing the opening 20a is provided.

As shown in FIGS. 2 to 5, the cooking chamber 20 is for storing and cooking foodstuffs. A hot air generating chamber 22 for generating hot air to be sent to the food storage chamber 21 is provided on the left side of the cabinet 20 . As shown in FIGS. 3 to 5, a partition plate 23 for partitioning the food storage chamber 21 and the hot air generation chamber 22 is provided on the left side of the central portion of the cooking chamber 20 in the horizontal direction. As shown in FIG. 5, the partition plate 23 is provided with an intake port 23a consisting of a large number of openings, and the air in the food storage chamber 21 is sent to the hot air generating chamber 22 through the intake port 23a. In addition, the partition plate 23 is attached to the cooking chamber 20 so that an air passage 23b is formed between the ceiling wall, the bottom wall, the front wall, and the rear wall of the cooking chamber 20, and the air in the hot air generation chamber 22 is The food is sent to the food storage chamber 21 through the ventilation path 23b.

As shown in FIGS. 2 to 5, the food storage chamber 21 of the cooking chamber 20 is provided with a pair of left and right support frames 24 for supporting trays called hotel pans in six stages (in a multistage manner) vertically. . As shown in FIGS. 3 and 4, the left support frame 24 is positioned immediately to the right of the partition plate 23 within the cooking chamber 20 and the right support frame 24 is positioned immediately to the left of the right wall of the cooking chamber 20. are placed.

At the rear of the ceiling wall and the bottom wall of the cooking chamber 20, a rotating shaft portion 21a is provided immediately to the right of the partition plate 23 (shown in FIGS. 3 to 5), and the front of the ceiling wall and the bottom wall of the cooking chamber 20. An engaging protrusion 21b is provided immediately to the right of the partition plate 23 (shown in FIGS. 4 and 5). As shown in FIG. 4, the rear portion of the left support frame 24 is supported by a rotation shaft portion 21a so as to be rotatable about a vertical axis, and the front portion of the left support frame 24 is detachable from the engagement protrusion 21b. is engaged in The left support frame 24 is arranged immediately on the right side of the partition plate 23 and parallel to the partition plate 23, and from this position, the front portion can be rotated to the inside of the cooking chamber 20, that is, to the right side, with the rear portion as a fulcrum. (Indicated by a two-dot chain line in FIG. 4).

At the rear of the ceiling wall and the bottom wall of the cooking chamber 20, a rotating shaft portion 21a is provided immediately to the left of the right side wall of the cooking chamber 20 (shown in FIG. 3). An engaging protrusion 21b is provided on the immediate left side of the right side wall of the cooking chamber 20 (only the engaging protrusion 21b on the bottom wall is shown in FIG. 4). As shown in FIG. 4, the rear portion of the right support frame 24 is supported by the rotation shaft portion 21a so as to be rotatable about the vertical axis, and the front portion of the right support frame 24 is engaged with the engaging protrusion 21b. It is The right support frame 24 is arranged on the left side of the right side wall of the cooking chamber 20 in parallel with the right side wall, and from this position, the front portion can be rotated inside the cooking chamber 20, that is, to the left side, with the rear portion as a fulcrum. (indicated by the two-dot chain line in FIG. 4). The support frame 24 on the right side is bilaterally symmetrical with the support frame 24 on the left side.

As shown in FIGS. 5 and 6, the support frame 24 is constructed between the front and rear struts 24a and 24b using metal wires and the front and rear struts 24a and 24b to support the tray in the horizontal direction. and a rail 24f using a metal wire rod for supporting the edge of the rail 24f. Connection bars 24c and 24d using metal wires extending in the front-rear direction are provided at the upper and lower ends between the front support 24a and the rear support 24b, and the front support 24a and the rear support 24b are vertically connected. They are connected by bars 24c and 24d. Four vertically extending studs 24e using metal wires are provided between the front strut 24a and the rear strut 24b, and the studs 24e are fixed to the connecting bars 24c and 24d.

As shown in FIG. 6, between the upper and lower connecting bars 24c and 24d are provided six rails 24f using metal wires that extend back and forth. It is fixed to the front and rear struts 24a, 24b and some studs 24e. The rail 24f includes a lower rail portion 24f1 that supports the lower side of the left and right edges of the tray, and an upper rail portion 24f2 that is arranged above the left and right edges of the tray. The upper rail portions 24f2 are arranged above the left and right edges of the tray, and have the function of suppressing thermal deformation of the tray during cooking by pressing the edges of the tray from above.

As shown in FIGS. 5 and 6, annular portions 24b1 are integrally formed at the upper and lower ends of the rear support column 24b. is rotatably engaged with the

Six flattened portions 24a1 are formed by press working on the front post 24a, and the flattened portions 24a1 are formed at height positions corresponding to the positions of the steps for supporting the tray. Information relating to the tray position is stamped (displayed) on the flattened portion 24a1, and the information relating to the tray position is marked as 1, 2, 3, . . . from the top.

As shown in FIGS. 4 to 7, upper and lower base plates 24g and 24h are provided at the upper and lower ends of the front post 24a, and the upper and lower base plates 24g and 24h are engaged with the engaging projections 21b. are located below and above the As shown in FIG. 6, cutouts 24g1 and 24h1 are formed in the upper and lower base plates 24g and 24h to avoid contact with the engaging protrusion 21b. As shown in FIGS. 4, 6 and 7, the leaf spring members 24i are fixed to the upper and lower base plates 24g and 24h at positions where the notch portions 24h1 are formed. The supporting frame 24 is prevented from rotating at a position supporting the tray when engaged with the engaging protrusion 21b (the leaf spring member 24i of the upper base plate 24g is omitted from the drawing).

As shown in FIG. 7(a), when the front portion of the support frame 24 is positioned to support the tray, the upper and lower base plates 24g and 24h are positioned below and above the engagement protrusion 21b. are placed. At this time, the engaging protrusions 21b protrude downward and upward from the cutouts 24g1 and 24h1, and the leaf spring members 24i are engaged with the engaging protrusions 21b by their urging forces. Rotation is restricted. When the leaf spring member 24i is disengaged from the engaging protrusion 21b against the urging force thereof, the front portion of the support frame 24 moves inside the cooking chamber 20 as shown in FIG. 7(b). It becomes rotatable.

As shown in FIGS. 3, 4 and 8, a heater 25 and a convection fan 26 are provided on the left side of the cooking chamber 20. As shown in FIG. A heater 25 heats the cooking chamber 20 and a convection fan 26 convects the air in the cooking chamber 20 . The heater 25 is annularly formed on the left side wall of the cooking chamber 20 . A convection fan 26 is arranged inside the annularly formed heater 25 . When the heater 25 and the convection fan 26 are operated, the air in the food storage chamber 21 is sent to the hot air generation chamber 22 through the suction port 23a, and the air blown centrifugally outward from the convection fan 26 flows into the hot air generation chamber 22. Inside, it is heated by the heater 25 and becomes hot air. As shown in FIG. 8 , a temperature sensor 27 is provided on the left side wall of the cooking chamber 20 and the temperature sensor 27 detects the temperature inside the cooking chamber 20 .

As shown in FIG. 9, the machine room 12 of the housing 11 is provided with a steam generator 30 for supplying steam into the cooking chamber 20 . The steam generator 30 heats water by induction heating to generate steam, and is erected above the drainage tank 14 for draining the drainage from the cooking chamber 20 . The steam generating device 30 includes a cylindrical steam generating container 31 storing water at a predetermined level, a heating element (not shown) for heating the water in the steam generating container 31, and a heater wound around the outer circumference of the steam generating container 31. It is equipped with an induction heating coil 32 that heats the heating element and a steam delivery cylinder 33 that delivers the steam generated in the steam generation container 31 to the cooking chamber 20 . The steam delivery cylinder 33 is connected to the steam introduction port 20b (shown in FIG. 8) of the cooking chamber 20 shown in FIG. It is sent into the cooking chamber 20 from the mouth 20b.

As shown in FIG. 10 , the heating cooker 10 includes a control device 40 that is connected to the heater 25 , the convection fan 26 , the temperature sensor 27 and the steam generator 30 . The control device 40 has a microcomputer (not shown), and the microcomputer has a CPU, a RAM, a ROM and a timer (all not shown) connected via a bus.

The control device 40 has a cooking program for cooking food in the cooking chamber 20 in its ROM. The cooking program consists of a hot air mode cooking program in which the heater 25 and the convection fan 26 are operated to heat and cook the ingredients with convection hot air, and a convection fan 26 and the steam generator 30 are operated to operate the convection hot air containing steam. There are three types of cooking programs: a steam mode cooking program for heating and cooking foodstuffs, and a combination mode cooking program for heating and cooking foodstuffs with high-temperature hot air containing steam that actuates the heater 25, the convection fan 26, and the steam generator 30 to convect. It has a cooking program. The ROM stores a cooking program in which the set temperature, steam amount, and cooking time in the cooking chamber 20 are set in advance. It is configurable.

When the hot air mode cooking program of the cooking program is executed, the heater 25 and the convection fan 26 operate to suck the air in the food material storage chamber 21 into the hot air generation chamber 22 through the suction port 23a. is blown outward in the centrifugal direction from the convection fan 26, and the air blown out in the centrifugal direction is heated when passing around the heater 25, and the heated air becomes hot air and passes through the ventilation passage 23b. It is sent to the food storage room 21 . The air in the cooking chamber 20 is heated by the heater 25 in the process of circulating through the food storage chamber 21 and the hot air generating chamber 22 by the convection fan 26, becomes hot air, convects the cooking chamber 20, and is stored in the cooking chamber 20. Ingredients are heated and cooked by convection hot air.

Also, when the combination mode cooking program of the cooking program is executed, the air in the cooking chamber 20 is circulated between the food storage chamber 21 and the hot air generation chamber 22 by the convection fan 26, as when the hot air mode cooking program is executed. In the process of cooking, it is heated by the heater 25 and turns into hot air to cause convection in the cooking chamber 20, and the steam is supplied from the steam generator 30 into the cooking chamber 20, so that the ingredients stored in the cooking chamber 20 convect. It is cooked by hot air containing steam.

The heating cooker 10 configured as described above includes a cooking chamber 20 for cooking ingredients, a heater 25 for heating the interior of the cooking chamber 20, a convection fan 26 for convecting the air in the cooking chamber 20, and cooking. A pair of left and right support frames 24 are provided for vertically supporting trays containing foodstuffs in a cabinet 20 in a multistage manner.

Each of the pair of left and right support frames 24 is bridged between front and rear struts 24a and 24b made of metal wire, and front and rear struts 24a and 24b to support the left and right edges of the tray. and a rail 24f using a metal wire. In particular, the support frame 24 of this embodiment is entirely made of metal wires except for the upper and lower base plates 24g and 24h provided at the upper and lower ends of the front strut 24a. When food is cooked in the cooking chamber 20, the oil scattered from the food adheres not only to the peripheral wall of the cooking chamber 20 but also to the support frame 24.例文帳に追加Since all the parts of the support frame 24 except for the upper and lower base plates 24g and 24h are made of metal wire rods, they are more likely to scatter during cooking than when sheet metal members are used for the support frame. Oil content is less likely to accumulate on the support frame 24, and oil stains are less likely to remain on the support frame 24 after cleaning.

In addition, the rear pillar 24b is supported on the rear portion of the cooking chamber 20 so as to be rotatable about the vertical axis, and the front portion of the support frame 24 is detachably engaged with the front portion of the cooking chamber 20 at the position where the tray is supported. let me Specifically, a rotation shaft portion 21a is provided at the rear portion of the cooking chamber 20, and a rear support pillar 24b constituting the rear portion of the support frame 24 is supported on the rotation shaft portion 21a so as to be rotatable around the vertical axis, A plate provided with engaging projections 21b on the front part of the ceiling wall and the front part of the bottom wall of the cooking chamber 20 and provided on the upper and lower ends of the front support 24a of the support frame 24 via the upper and lower base plates 24g and 24h. The spring member 24i is detachably engaged with the engaging protrusion 21b.

When the foodstuff is cooked in the cooking chamber 20, the upper and lower base plates 24g are attached to the upper and lower ends of the front struts 24a of the left and right support frames 24 when the left and right support frames 24 support the tray containing the foodstuff. , 24h are engaged with the upper and lower engaging protrusions 21b. In this state, the left and right support frames 24 are arranged parallel to each other, and the rails 24f of the left and right support frames 24 can support the tray. Further, the front support column 24a is provided with a squeezing shape portion 24a1 at a position corresponding to the tier position of the tray supported in a multi-tiered manner in the vertical direction. ), it is possible to immediately visually recognize information about the stage position where the tray is accommodated.

When cleaning the inside of the cooking chamber 20 after cooking with heat in the cooking chamber 20, the leaf spring members 24i at the upper and lower ends of the front support columns 24a of the support frame 24 are disengaged from the engaging projections 21b, and the support frame 24 is disengaged. can be rotated inside the cooking chamber 20 . By rotating the front part of the left support frame 24 to the right inside the cooking chamber 20 , the partition plate 23 can be washed without being blocked by the left support frame 24 . Furthermore, since the rear part of the partition plate 23 is also rotatably supported around the vertical axis, the front part of the left support frame 24 and the front part of the partition plate 23 are rotated to the right side inside the cooking chamber 20. Thus, the inside of the hot air generation chamber 22 can be cleaned. Similarly, by rotating the front portion of the right support frame 24 leftward inside the cooking chamber 20, the right side wall of the cooking chamber 20 can be washed without being blocked by the right support frame 24. .

In this embodiment, the leaf spring members 24i are provided at the upper and lower ends of the front strut 24a as the front lower portion of the support frame 24 via the upper and lower base plates 24, 24h. A plate spring member 24i may be provided at the upper end or the lower end of the front strut 24a via the upper base plate 24g or the lower base plate 24h.

DESCRIPTION OF SYMBOLS 10... Heating cooker 20... Cooking chamber 21b... Engagement protrusion 24... Support frame 24a... Front side support 24a1... Crushing shape part 24b... Rear side support, 24f... Rail, 24i... Leaf spring member, 25... Heater, 26... Convection fan.

Claims (3)

a cooking chamber for heating and cooking ingredients;
a heater for heating the interior of the cooking chamber;
A convection fan for convecting the air in the cooking chamber;
A heating cooker comprising a pair of left and right support frames that support a tray containing food in the cooking chamber in a multi-tiered manner,
Each of the pair of left and right support frames includes front and rear struts using metal wire rods, and metal wire rods that are installed between the front and rear struts to support the lateral edges of the tray. and a rail using
The rear post is supported on the rear portion of the cooking chamber so as to be rotatable about a vertical axis, and the front portion of the support frame is detachably engaged with the front portion of the cooking chamber at a position where the tray is supported. A heating cooker characterized by: In the heating cooker according to claim 1,
At least one of the front part of the ceiling wall and the front part of the bottom wall of the cooking chamber is provided with an engaging projection that engages with at least one of the front upper part and the front lower part of the support frame at a position where the tray is supported,
At least one of the front upper part and the front lower part of the support frame is provided with a leaf spring member that can be engaged with the engaging protrusion,
A heating cooker, wherein a front portion of the support frame is engaged with a front portion of the cooking chamber at a position where the tray is supported by engaging the leaf spring member with the engagement protrusion. . In the heating cooker according to claim 1 or 2,
A heating characterized in that the front pillar is provided with a crushed shape portion at a position corresponding to the stage position of the tray supported in a multi-tiered manner in the vertical direction, and the crushed shape portion displays information on the stage position of the tray. Cooking device.

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