JP6049553B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device for baking an object to be cooked.

Conventionally, in this type of cooking device, hot air in the cooking chamber during cooking is shielded by glass provided on the front surface of the grill door. For this reason, it is known that the temperature of the grill door becomes high due to the hot air from the cooking chamber.
As a technique for reducing the temperature outside the grill door and the viewing window, those disclosed in Patent Documents 1 and 2 are known.
In Patent Document 1, a window glass is formed in a double structure, and an air heat insulating layer is provided inside, thereby obtaining a temperature reduction effect.
Japanese Patent Laid-Open No. 2004-228561 provides an effect of reducing temperature by providing an air heat insulating layer over the entire door.

JP 2004-121596 A JP 2009-213684 A

In Patent Document 1, the inner window glass is pressed against the upper grille opening by an urging spring, and the urging spring is held on the frame to keep the grille chamber opening hermetically sealed.
However, since a part of the urging spring is located inside the opening on the grill where the temperature tends to be high, there is a problem that heat is easily transferred from the urging spring to the surface frame by heat conduction.

  In addition, since Patent Document 2 is configured to shield the heat by forming an air heat insulating layer with the grille door front plate and the front plate holding member, the viewing window is covered with the front plate holding member and the heat shield plate, There was a problem that cooking in the cooking chamber could not be confirmed.

  Then, this invention is providing the heating cooker which can reduce the temperature of the front glass of a door, is easy to visually check in a cooking chamber, and is easy to use.

In order to solve the above-described problems, the present invention provides a cooking chamber having an opening on the front surface of a main body and provided with heating means for heating an object to be heated, and an outer shell provided around the opening. And a door that abuts the outer shell and closes the opening, and the door contacts the outer shell and has a peep hole formed to open into the cooking chamber. A frame, a rear glass disposed on the front side of the frame and formed larger than the peephole and attached to the peephole, and a front surface disposed on the front side of the rear glass and formed larger than the rear glass. Holding member that is sandwiched and fixed between the frame body and the front glass while holding a side edge of the glass and the rear glass and forming a space between the rear glass and the front glass; Holding the front glass, the front glass Comprising a handle portion for fixing to the body, wherein the holding member is characterized by being formed by a lower resin member having heat conductivity.

  ADVANTAGE OF THE INVENTION According to this invention, the temperature of the front glass of a door can be lowered | hung, the visual observation in a cooking chamber is easy, and the cooking device which is easy to use is obtained.

It is a perspective view which shows the state which applied the heating cooker which concerns on one Embodiment of this invention to the system kitchen. It is an expanded sectional view of an oven. It is a perspective view of the upper heater with which the oven of a heating cooker is equipped. It is a perspective view of the lower heater with which the oven of the heating cooker is equipped. It is a perspective view of the grill provided in the oven of the cooking device. It is a perspective view which shows an internal structure when the oven of the heating cooker is seen from the lower side. It is a perspective view which shows the door of the oven of the heating cooker. It is a longitudinal cross-sectional view of a door. It is a disassembled perspective view which shows the main components of a door.

  Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. In each figure, common portions are denoted by the same reference numerals, and redundant description is omitted. In the following description, when referring to “front and rear”, “left and right” and “up and down”, the direction shown in FIG. In the following, a built-in heating cooker that is fitted into the system kitchen will be described. However, the purpose of the heating cooker is not limited, and a stationary heating cooker installed in the kitchen may be used.

  In FIG. 1, the main body 2 of the heating cooker is installed in the system kitchen 1 by being inserted from a hole provided in the top plate 1 a on the upper surface of the system kitchen 1. After the installation, an oven (roaster) 4 and an operation unit 5 which are described later of the main body 2 can be operated from the front part below the top plate 1a of the system kitchen 1. The operation unit 5 is a part for mainly turning on / off the oven 4 and selecting / setting menus.

  A cooking pan (not shown) for cooking is placed on a plate 3 made of heat-resistant glass or the like disposed on the upper surface of the main body 2. The peripheral end surface of the plate 3 is protected by a plate frame 14.

  A placement unit 6 is drawn on the upper surface of the plate 3, and cooking can be performed by placing a cooking pan on the placement unit 6. In the mounting portion 6, a right mounting portion 6a is disposed on the right side of the upper surface of the plate 3, a left mounting portion 6b is disposed on the left side, and a back side (center) between the mounting portions 6a and 6b. A central mounting portion 6c is disposed on the rear side. And the heating coil unit 25 (refer FIG. 2, the same hereafter) which inductively heats a cooking pot is installed so that it may be located under each mounting part 6a-6c on both sides of the plate 3. As shown in FIG.

An upper surface operation unit 9 is provided on the front side of the plate 3 and an upper surface display unit 10 is provided on the rear side. The upper surface operation unit 9 is a part that mainly operates the heating coil unit 25.
Inside the main body 2, the heating coil unit 25, electronic components, and cooling fans (none of which are shown) for cooling these heat generating components are arranged.

  On the rear upper surface of the main body 2, there are an intake port 7 for sucking outside air by driving the cooling fan and an exhaust port 8 for discharging waste heat after cooling the heating coil unit 25 and electronic components to the outside of the main body 2. Is provided. Waste heat from the oven 4 to be described later is also discharged from the exhaust port 8 at the same time.

  The oven 4 is for baking a heated object 30 (see FIG. 2) such as fish, meat, and pizza, and is located below the heating part of the main body 2 and is arranged on the left or right side of the front part. (In this embodiment, the one arranged on the left side of the main body 2 is exemplified). The oven 4 may be called a roaster or grill as a name.

Next, the details of the oven 4 will be described with reference to FIGS.
The oven 4 includes a cooking chamber 26 having a doorway 26d serving as an opening on the front surface of the main body 2. The cooking chamber 26 is provided with a heater 27 as a heating means for heating the article 30 to be heated, and has a box shape. The heater 27 includes a heating element such as a sheathed heater, and includes an upper heater 27a and a lower heater 27b.

As shown in FIG. 3, the upper heater 27 a is disposed so as to meander along the front-rear direction or the left-right direction (horizontal width direction) of the cooking chamber 26 (see FIG. 2, the same applies hereinafter). And fixed to the back surface via a fixing bracket 16a. The terminal portion 27c of the upper heater 27a extends to the outside of the cooking chamber rear plate 26a (see FIG. 2).
As shown in FIG. 4, the lower heater 27 b is arranged so as to meander along the front-rear direction or the left-right direction (horizontal width direction) of the cooking chamber 26, and is fixed to the back surface of the cooking chamber 26 via a fixing bracket 16 b. Has been. The terminal portion 27d of the lower heater 27b extends to the outside of the cooking chamber rear plate 26a (see FIG. 2). The lower heater 27 b has a horizontally long heat generating portion 27 b 1 along the width direction of the grill 33 provided in the cooking chamber 26. The horizontally long heat generating portion 27 b 1 is located on the front side of the cooking chamber 26 that is close to the back side of the door 32.

  The upper heater 27 a and the lower heater 27 b are energized under the control of the control unit 45. The control unit 45 is disposed on the upper surface of the oven 4 at a position not affected by the heat from the oven 4, and is also connected to the operation unit 5 and the upper operation unit 9.

The doorway 26 d is closed by a door 32, and the handle 11 is attached to the front side of the door 32. The rear surface portion of the door 32 is detachably connected by being hooked by a claw (not shown) provided on the front surface of the tray support portion 31a. The tray support 31a is fixed to a slide rail 26c (see FIG. 6) fixed to the cooking chamber 26, and the tray 31 is detachably mounted on the upper surface thereof.
The tray 31 is provided so as to be freely inserted and removed from the entrance / exit 26d, and a grill net 33 is placed thereon. An object 30 to be heated is placed on the grill 33.
As shown in FIG. 5, the grill 33 has a substantially U-shaped horizontal wire 33a provided in parallel from the rear to the front with a predetermined gap, and both ends of the horizontal wire 33a are fixed to the upper part. And a pair of frame wire rods 33b placed on the inner peripheral step portion of the tray 31. Between the U-shaped portions, there is provided a holding wire 33c for keeping the upper and lower gaps constant.

An exhaust outlet 29 is provided at the rear upper part of the cooking chamber 26, and the exhaust outlet 29 communicates with the exhaust outlet 8 opened on the upper surface of the rear part of the main body 2 through the exhaust passage 35.
In addition, an air purification catalyst 34 for purifying smoke and odor generated in the cooking chamber 26 and a catalyst heater 37 for heating the catalyst 34 are arranged on the inlet side of the exhaust outlet 29. In the middle of the exhaust passage 35, an exhaust fan 36a and an exhaust motor 36b are provided as exhaust means for forcibly discharging smoke and odor from the exhaust port 8 to the outside of the main body 2.
The catalyst heater 37 and the exhaust motor 36 b are connected to the control unit 45.

An air intake 43 is provided between the front lower portion of the cooking chamber 26 and the door 32. When the exhaust means is driven, outside air flows into the cooking chamber 26 from the air intake 43, and the inflowing outside air flows toward the exhaust passage 35 while cooling the lower surface of the tray 31.
A temperature sensor (not shown) for detecting the temperature inside the cooking chamber 26 is provided on the side surface of the cooking chamber 26. The temperature sensor is connected to the control unit 45.

Next, the door 32 will be described with reference to FIGS.
The door 32 includes a frame body 61, a rear glass 62, a holding member 63, a front glass 64, and a handle portion 65.

The frame body 61 is a portion that is located on the innermost side of the door 32 and is in contact with the outer portion 26e (see FIG. 6) of the doorway 26d, and an opening is formed in the center portion so that the inside of the cooking chamber 26 can be viewed. A viewing hole 61b is formed. The frame 61 is formed in a box shape with a stainless steel plate as a base, and has an upper surface 61d and left and right side surfaces 61c that are continuously bent on the front surface 61a as shown in FIG. .
A holding portion 61d1 (see FIGS. 8 and 9) formed by bending downward is formed on the upper surface 61d. The holding portion 61d1 can hold the upper end portion 64c of the front glass 64. A narrowed portion 61e protruding forward is formed at the edge of the peep hole 61b. A packing (not shown) is attached to the throttle portion 61e. The rear glass 62 comes into contact with the throttle portion 61e through this packing.

  The front surface 61a of the frame 61 is provided with a screw hole 61f and a locking hole 61g. A screw (not shown) is inserted into the screw hole 61f from the rear surface side of the frame body 61, and the handle portion 65 is fixed to the frame body 61 by screwing of the screw. The claw of the tray support part 31a (refer FIG. 2) is latched by the locking hole 61g.

  The rear glass 62 is a tempered glass provided with a transparent portion 62a. The transparent portion 62 a is for seeing through the cooking chamber 26 through the transparent portion 64 a provided on the front glass 64 and the peep hole 61 b of the frame body 61. In the present embodiment, the entire rear glass 62 is transparent, but if the transparent portion 62a has a size that allows the cooking chamber 26 to be seen through, a colored portion is provided around the transparent portion 62a. It doesn't matter.

The holding member 63 is a member that holds the left and right side end portions 62b, 62b of the rear glass 62 from the left and right, and is formed of a hard resin member having low thermal conductivity, for example, polybutylene terephthalate (PBT).
On the front surface of the holding member 63, a plurality of projecting portions 63a projecting forward with a space in the vertical direction are formed. The plurality of protruding portions 63 a are opposed to the rear surface of the front glass 64 and can contact the rear surface of the front glass 64. That is, the front surface of the holding member 63 has a smaller contact area with the front glass 64 than when the holding member 63 is formed as a flat surface.

On the rear surface of the holding member 63, receiving portions 63b, 63c, 63d for holding the side end portions 62b, 62b of the rear glass 62 from the left and right are formed. The rear surfaces of the receiving portions 63b, 63c, and 63d are substantially flat surfaces facing the front surface 61a of the frame body 61, and can contact the front surface 61a of the frame body 61.
Further, the side surface 63e of the holding member 63 faces the side surface 61c of the frame body 61, and can contact the side surface 61c of the frame body 61 with the rear glass 62 held.

  The front glass 64 is a tempered glass provided with a transparent portion 64 a and is disposed on the front side of the rear glass 62 and is larger than the rear glass 62. The transparent portion 64a is disposed at a substantially central portion of the front glass 64, and is for seeing through the state of the heated object 30 (see FIG. 2) inside the cooking chamber 26 from the outside of the door 32. . The peripheral portion of the transparent portion 64a is a colored portion 64b that is colored black or the like by painting. The colored portion 64b is configured to prevent the components of the main body 2 and the cooking chamber 26 from being seen from the front side of the main body 2 and to improve the design on the front side of the main body 2.

The handle portion 65 has a function of holding the front glass 64. The handle portion 65 is provided on the front surface of the panel portion 65a constituting the design on the front surface side, the handle portion 65b for opening and closing the door 32, and provided on the rear surface of the panel portion 65a. And a held portion 65c fixed to the body 61.
A glass receiving portion 65d that supports the lower end portion 64d of the front glass 64 is provided on the upper portion of the panel portion 65a. The handle 65b uses a resin molded product in order to relieve the feeling of being hot when touched and the irritation to the skin. A gap 65e is formed between the handle portion 65b and the panel portion 65a in order to suppress heat transfer to the handle portion 65b.

Such a door 32 is assembled generally as follows.
First, the receiving portions 63b, 63c, 63d of the holding members 63, 63 are assigned to the side end portions 62b, 62b of the rear glass 62, and the holding members 63, 63 are attached to the side end portions 62b, 62b.

  Next, the rear glass 62 to which the holding members 63 and 63 are attached is overlaid on the frame body 61. At that time, the rear glass 62 is placed on the front surface of the frame body 61 so that the side surfaces 63e and 63e of the holding members 63 and 63 are in contact with the left and right side surfaces 61c and 61c of the frame body 61. As a result, the viewing hole 61 b of the frame 61 is closed by the rear glass 62.

Thereafter, the front glass 64 is supported by the handle portion 65, and the front glass 64 is stacked on the frame body 61 from above the holding members 63, 63 so that the upper end portion 64 c of the front glass 64 is held by the upper surface 61 d of the frame body 61. Locks to the part 61d1.
Then, a screw (not shown) is inserted into the screw hole 61 f of the frame body 61 from the rear surface side of the frame body 61, and the screw is screwed into the handle portion 65 to fix the handle portion 65 to the frame body 61.

Accordingly, the holding members 63 and 63 are fixed between the frame body 61 and the front glass 64 so that the rear glass 62 is fixed. That is, the rear glass 62 (holding members 63, 63) is sandwiched and fixed between the frame 61 and the front glass 64 when the door 32 is assembled without using fixing means such as fixing screws.
Further, since the holding members 63 and 63 are interposed between the rear glass 62 and the front glass 64, a space S is formed between the rear glass 62 and the front glass 64 by the thickness of the holding member 63. Will be formed. That is, an air heat insulating layer that hardly transfers heat is formed between the rear glass 62 and the front glass 64.

Next, the action during cooking will be described.
When the door 32 of the oven 4 is opened, if a finger is placed on the handle portion 65b of the handle portion 65 and pulled, the tray support portion 31a locked to the door 32 and fixed to the slide rail 26c is pulled out. Thereby, the saucer 31 placed on the saucer support portion 31 a and the grill 33 placed on the saucer 31 are pulled out of the cooking chamber 26.
Here, the object 30 is placed on the grill 33 and the door 32 is closed. The setting of cooking and the start of heating are operated with the operation unit 5. After the start of heating, when heated by the upper heater 27a and the lower heater 27b, the inside of the cooking chamber 26 rises to a high temperature (about 250 ° C.), and the heated object 30 is heated and cooked.

During cooking, the inside of the cooking chamber 26 is visually observed from the outside of the door 32 through the front glass 64, the rear glass 62, and the peep hole 61b, and the color of the baking, the degree of baking, and the condition of the fire of the heated object 30 are confirmed. For example, the heated object 30 that needs to be turned over is turned over so that the work according to the progress of cooking is performed. If it is okay to visually check, the fire is stopped, the door 32 of the oven 4 is opened, and the heated object 30 placed on the drawn grill 33 is taken up.
During such cooking or immediately after cooking, the front glass 64 of the door 32 can be suppressed to about 100 ° C. or less by the above-described structure of the present embodiment.

  According to the present embodiment described above, the space S serving as an air heat insulation layer is formed between the rear glass 62 and the front glass 64 via the holding member 63 (double glass provided with an air heat insulation layer). Therefore, although the rear glass 62 is heated by being exposed to the hot air in the cooking chamber 26, it is possible to suitably prevent heat from being directly transmitted to the front glass 64, and heating of the front glass 64 is prevented. Therefore, the temperature of the front glass 64 can be reduced.

  In addition, since the holding member 63 is formed of a hard resin member having low thermal conductivity, the heat transmitted to the front glass 64 through the holding member 63 can be suitably reduced. Thereby, the heating of the front glass 64 can be further suppressed.

  Further, during cooking, the inside of the cooking chamber 26 can be easily seen from the outside of the door 32 through the front glass 64, the rear glass 62, and the peephole 61b, and a convenient cooking device is obtained.

  In addition, the holding member 63 is sandwiched between the frame body 61 and the front glass 64, and the rear glass 62 sandwiches the holding member 63 so that the diaphragm 61e of the peeping hole 61b of the frame body 61 is sandwiched. Since the rear glass 62 is exposed to the cooking chamber 26 through the peep hole 61b, the adhesion of the rear glass 62 to the peep hole 61b can be improved. It is possible to suitably prevent the hot air from the cooking chamber 26 from entering the inside. Thereby, the heating of the front glass 64 can be suppressed suitably.

Further, since the four corners of the rear glass 62 are held by the receiving parts 63b and 63d of the holding member 63, the warp, which is a general characteristic of tempered glass, is suitably suppressed (corrected state). Therefore, it is held between the frame 61 and the front glass 64. Thereby, the adhesiveness of the rear glass 62 with respect to the aperture | diaphragm | squeeze part 61e of the frame 61 can be improved more, and it suppresses suitably that the heat | fever in the cooking chamber 26 penetrate | invades between the rear glass 62 and the front glass 64. Can do.
Thus, since the heat | fever penetration | invasion from the cooking chamber 26 to the door 32 can be suppressed, the fall of the temperature in the cooking cabinet 26 can be prevented, and useless consumption of electric power can be prevented.

  Further, since the front glass 64 is also held by the holding member 63 in a state in which the warp is suitably suppressed (corrected state), the advantage that the flatness of the door 32 is suitably ensured is obtained.

  In addition, since the holding member 63 is in contact with the rear surface of the front glass 64 via a plurality of protrusions 63 a protruding forward, the heat transfer resistance is increased and is transmitted to the front glass 64 via the holding member 63. Heat can be reduced. Thereby, the heating of the front glass 64 can be prevented suitably, and the temperature of the front glass 64 can be lowered.

  In addition, the rear surfaces of the receiving portions 63b, 63c, and 63d of the holding member 63 are substantially flat surfaces facing the front surface 61a of the frame body 61 and can contact the front surface 61a of the frame body 61. The contact area between the frame body 61 and the frame body 61 can be increased. Thereby, for example, when the door 32 is closed with force, it is possible to suitably prevent the frame member 61 from being deformed by the holding member 63 made of a hard material.

  Moreover, since the rear glass 62 is entirely transparent and includes the transparent portion 62a having a larger area than the transparent portion 64a of the front glass 64, the inside of the cooking chamber 26 can be suitably seen through. .

  Further, since the rear glass 62 is fixed by holding the frame body 61 and the front glass 64 without using fixing means such as screws by the holding member 63, it is easy to perform the assembling work and for fixing. Since no parts are required, the number of parts can be reduced and the cost can be reduced.

  Further, when viewed from the front of the door 32 by the colored portion 64b of the front glass 64, the holding member 63 can be hidden by the colored portion 64b so as not to enter the field of view. A cooking device having the door 32 is obtained.

  In the above-described embodiment, the rear glass 62 and the front glass 64 are shown to have a square shape, but the present invention is not limited thereto, and the rear glass 62 is held between the frame body 61 and the front glass 64. As long as the holding member 63 is sandwiched, various shapes such as a round shape, an elliptical shape, a shape having a curved portion, and a polygonal shape can be adopted.

2 Main body 26 Cooking chamber 26d Doorway (opening)
26e outer part 27 heater 27a upper heater (heating means)
27b Lower heater (heating means)
30 Heated object 32 Door 61 Frame 61b Peeping hole 62 Rear glass 63 Holding member 63a Projecting part 64 Front glass 65 Handle part S Space

Claims (2)

A cooking chamber having an opening on the front surface of the main body and provided with a heating means for heating an object to be heated inside, an outer portion provided around the opening, and the opening in contact with the outer portion A door for closing the part,
The door
A frame body that is in contact with the outer shell and has a peephole formed to open into the cooking chamber;
A rear glass disposed on the front side of the frame, formed larger than the peephole and attached to the peephole;
A front glass disposed on the front side of the rear glass and formed larger than the rear glass;
Holding a side edge of the rear glass, forming a space between the rear glass and the front glass, and holding members fixed between the frame body and the front glass; and
A handle portion for holding the front glass and fixing the front glass to the frame;
Equipped with a,
The heating cooker, wherein the holding member is formed of a resin member having low thermal conductivity. A cooking chamber having an opening on the front surface of the main body and provided with a heating means for heating an object to be heated inside, an outer portion provided around the opening, and the opening in contact with the outer portion A door for closing the part,
The door
A frame body that is in contact with the outer shell and has a peephole formed to open into the cooking chamber;
A rear glass disposed on the front side of the frame, formed larger than the peephole and attached to the peephole;
A front glass disposed on the front side of the rear glass and formed larger than the rear glass;
Holding a side edge of the rear glass, forming a space between the rear glass and the front glass, and holding members fixed between the frame body and the front glass; and
A handle portion for holding the front glass and fixing the front glass to the frame;
Equipped with a,
A cooking device, wherein a plurality of protrusions are formed on a contact surface of the holding member with respect to the front glass.

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