JP2010223505A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooker capable of preventing leakage of smoke from a grill door of a grill heating chamber. <P>SOLUTION: This heating cooker includes a cooker body 10, the grill heating chamber 20 disposed in the cooker body 10 and having an opening 21 at its front part, and the grill door 40 openably and closably closing the opening 21 of the grill heating chamber 20. A seal packing 50 of an elastic body is attached to an inner face of the grill door 40, the seal packing 50 has two or more thin sections 51a, 51b kept into contact with a flat face of a contact face 11 disposed on the circumference of the opening 21 of the grill heating chamber 20, and the thin sections 51a, 51b are continued along an outer periphery of the grill door at the cooker body 10. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cooking device having a grill heating chamber and a grill door, and more particularly to a cooking device in which the grill heating chamber and the grill door are brought into contact with each other via a seal packing.

In a conventional cooking device, the cooking device is designed to suppress heat transfer from the grill heating chamber heated by the heater in the grill heating chamber to the outer shell of the cooking device body and the grill door outside the grill heating chamber during cooking. The grill heating chamber in the main body is configured as a separate part to provide a space with the sheet metal covering the heating cooker body, and in order to seal the gap between the grill door and the grill heating chamber around the entrance of the grill heating chamber, A seal packing is provided on the surface of the grill door that faces the grill heating chamber, and a contact surface for the seal packing that is different from the grill heating chamber is formed on the grill heating chamber side in order to suppress heat transfer in the grill heating chamber. .
As described above, in the conventional heating cooker, the grill heating chamber in the cooker body is not integrated with the grill heating chamber and other components, so the contact surface of the seal packing and the grill heating chamber are screwed. It is necessary to provide a shape for attaching screws to the contact surface of the seal packing provided in the grill door, and an uneven surface is formed on the contact surface.
The grill door provided outside the grill heating chamber is also provided with a sheet metal on the side of the grill door facing the grill heating chamber in order to suppress heat transfer in the grill heating chamber, and a seal packing is provided on the sheet metal. Since the grill door is configured by fixing this sheet metal to the handle with a screw, a shape for fixing the screw to the sheet metal on which the seal packing is provided is necessary, and an uneven surface is formed on the sheet metal (See Patent Document 1).

Japanese Patent No. 3169862 (page 3, FIG. 6)

In the conventional cooking device, the contact surface of the seal packing and the grill heating chamber are joined by screws, and the contact surface of the seal packing provided on the grill door needs to be provided with a shape for attaching the screws. An uneven surface is formed on the surface, and when the seal packing of the grill door is brought into close contact with the contact surface having such an uneven shape, the adhesion between the uneven surface and the uneven surface is reduced, and the grill heating chamber The sealing around the entrance is unstable.
Therefore, when a fish or the like with a lot of oil is cooked in the grill heating chamber, a large amount of smoke is generated, and there is a problem that the smoke may leak from the periphery of the grill door having poor sealing properties other than the exhaust port.
In addition, although the seal packing is in contact with the contact surface, the gap between the grill door and the contact surface may become wide due to manufacturing variations or incomplete closing of the grill door during use. However, there is a problem that the sealing around the entrance of the grill heating chamber becomes unstable.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a heating cooker in which smoke does not leak from the grill door of the grill heating chamber.

  A heating cooker according to the present invention includes a cooking appliance main body, a grill heating chamber installed in the cooking appliance main body and having a front surface opened, and a grill door that opens and closes the opening of the grill heating chamber. In the cooking device, an elastic seal packing is attached to either the contact surface provided around the opening of the grill heating chamber or the inner surface of the grill door in the cooker body, and the seal packing is the contact surface or the There are two or more thin portions that contact the flat surface of the inner surface of the grill door, and these thin portions are continuous along the outer periphery of the grill door.

  In the heating cooker of the present invention, an elastic seal packing is attached to either the contact surface provided around the opening of the grill heating chamber or the inner surface of the grill door in the cooker body, and the seal packing is a contact surface. Or, it has two or more thin portions that contact the flat surface of the inner surface of the grill door, and these thin portions continue along the outer periphery of the grill door. Even when one of the two or more thin portions is not in contact with the contact surface or the flat surface of the grill door inner surface due to slight inclination, the other thin portion of the contact surface or the grill door inner surface Because it is in contact with the flat surface, when smoke generated from an object heated in the grill heating chamber flows around the opening of the grill heating chamber, the smoke leaks from the gap between the grill door and the contact surface. Prevent That there is an effect that it is.

The perspective view which shows typically the heating cooker of embodiment of this invention. Side surface sectional drawing which shows the heating cooker typically. The perspective view which looked at the grill door of the heating cooker, and the seal packing provided in it from diagonally back. Side surface sectional drawing of the state which the grille door of the same heating cooker, and the seal packing with which it was equipped contact | abuts to the flat part of a contact surface. Side surface sectional drawing of the state which the grille door of the same heating cooker, and the seal packing with which it comprised contact | abutted to the recessed part periphery of a contact surface. Explanatory drawing which shows typically the relationship between the seal packing and the screw fixing surface of a contact surface when it sees from the arrow A direction shown in FIG. BB sectional drawing of FIG.

Embodiment 1 FIG.
FIG. 1 is a perspective view schematically showing a heating cooker according to an embodiment of the present invention, FIG. 2 is a side cross-sectional view schematically showing the heating cooker, and FIG. FIG. 4 is a side sectional view showing a state in which the grill door of the heating cooker and the seal packing provided therein are in contact with the flat portion of the contact surface, and FIG. FIG. 6 is a side sectional view showing a state in which the grill door of the heating cooker and the seal packing provided on the grill door are in contact with the periphery of the concave portion of the contact surface. FIG. FIG. 7 is a cross-sectional view taken along the line B-B in FIG. 6, schematically illustrating the relationship between the surface and the screw fixing surface.

  1 and 2, a heating cooker 100 is insertable into a cooking device body 10 that is a substantially rectangular parallelepiped box, a grill heating chamber 20 provided inside the cooking device body 10, and the grill heating chamber 20. The mounting plate 30, the grill door 40 installed in front of the mounting plate 30, the exhaust means 60 connected to the rear opening of the grill heating chamber 20, and the top plate 70 provided on the upper surface of the cooker body 10. And a frame body 80 that continues to the top plate 70 and protrudes toward the outer periphery.

In the cooker body 10, a contact surface 11 that is attached to the grill door 40 and comes into contact with the seal packing 50 formed of an elastic body such as elastic rubber is attached around the front opening 21 of the grill heating chamber 20. .
The abutting surface 11 is provided with a screw fixing surface 12 having a screw hole for fixing the grill heating chamber 20 and the screw 13 together.
The screw fixing surface 12 has a concave shape, and when the contact surface 11 and the grill heating chamber 20 are fixed with the screw 13 screwed into the screw hole of the screw fixing surface 12, the screw head of the screw 13 faces the contact surface 11. The design of the contact surface 11 that can be seen when the grill door 40 is opened is maintained.

As shown in FIG. 2, the grill heating chamber 20 is a substantially rectangular parallelepiped space, in which a front opening 21 is formed in the front and a rear opening 22 is formed in the rear, and the upper heater 23 is near the bottom near the ceiling. The lower heaters 24 are respectively arranged.
And the exhaust port 64 is formed in the back of the upper surface of the cooking appliance main body 10 (same as the back of the top board 70), and the exhaust air path 63 which connects the exhaust port 64 and the rear opening part 22 of the back of the grill heating chamber 20 communicates. Is provided. In addition, since the cleaning filter 61 and the blower 62 are disposed in the exhaust air passage 63, smoke and odor generated by heating an object to be heated (for example, fish) are absorbed, and hot air, steam, etc. are exhausted from the exhaust port 64. Will be discharged from.

  When an object to be heated is heated by the upper heater 23 and the lower heater 24 in the grill heating chamber 20, the temperature of the grill heating chamber 20 rises by the upper heater 23 and the lower heater 24, but the cooker body 10 and the grill heating chamber Since 20 is comprised by another component, it can suppress that the temperature of the grill heating chamber 20 is directly transmitted to the cooking appliance main body 10. FIG.

The grill door 40 covers the front opening 21 of the grill heating chamber 20, and a handle 45 a is provided on the front surface of the grill door 40. Therefore, the cook can put the placing tray 30 in and out of the grill heating chamber 20 by placing a hand on the handle 45a.
Further, when the grill door 40 is pushed backward so as to be closed, the seal packing 50 provided on the grill door 40 comes into airtight contact with the abutting surface 11, so that the heated object cooked in the grill heating chamber 20 is heated. The generated smoke is prevented from leaking around the front opening 21 of the grill heating chamber 20.

The grill door 40 has a handle 45 a that protrudes to the front side and an L-shaped handle attachment body 45 having a door plate fitting receiving portion 45 b on the upper portion thereof, and a door plate fitting receiver of the handle attachment body 45. It is comprised with the door board 46 fitted by the part 45b.
The door plate 46 has a rectangular outer periphery and a glass front plate 41 having a transparent window 41w in the center portion, a sheet metal back plate 42 having an outer periphery rectangular and an opening 42w formed in the central portion, An outer peripheral plate 43 that connects the outer peripheries of the front plate 41 and the back plate 42 arranged substantially in parallel, and an inner peripheral plate that connects the periphery of the transparent window 41 w of the front plate 41 and the periphery of the opening 42 w of the back plate 42. 44. In order to fix the handle attachment body 45 and the back plate 42 of the door plate 46 with screws 47, a concave screw fixing surface 48 is provided on the back plate 42. When the screw fixing surface 48 is fixed with the screw 47, the screw head of the screw 47 does not protrude from the plane of the back plate 42, and the cleanability when the grill door 40 is washed is maintained.

  Further, when an object to be heated is heated by the upper heater 23 and the lower heater 24 in the grill heating chamber 20, the temperature of the grill heating chamber 20 is increased by the upper heater 23 and the lower heater 24. Since the hand attachment body 45 and the door plate 46 are formed as separate parts, even when the hot air in the grill heating chamber 20 is transmitted to the door plate 46, the hot air in the grill heating chamber 20 is directly applied to the hand attachment body 45. Can be suppressed.

A dish support frame 31 that supports the mounting tray 30 is fixed to the back plate 42 of the grill door 40, and the grill door 40 and the dish support frame 31 are installed to be tiltable with respect to the grill heating chamber 20. .
The dish support frame 31 is guided by a frame guide (not shown) formed on the side wall of the grill heating chamber 20 and slides in the grill heating chamber 20.
In addition, although the mounting net | network 32 for mounting a to-be-heated material directly is arrange | positioned above the mounting tray 30, it may be made to support the mounting net | network 32 with the upper edge of the mounting tray 30. FIG. The dish support frame 31 may be supported. Further, a portion corresponding to the tray support frame 31 may be formed on the mounting tray 30 itself.

On the top surface of the top plate 70, pan placing circles 71a, 71b, 71c (hereinafter sometimes collectively referred to as “pan placing circle 71”) are drawn, and coils are provided directly below each of the bottom surface of the top plate 70. Certain heating bodies 72a, 72b, 72c (hereinafter may be collectively referred to as “heating bodies 72”) are installed.
The heating bodies 72a, 72b, 72c are connected to the top panel operation unit 81 provided in front of the frame body 80 by the power switches 73a, 73b installed in the front operation unit provided on the front surface of the cooker body 10. It is operated by the installed power switch 74. The state of operation and cooking is displayed on the display unit 75 provided on the top board 70.

As shown in FIG. 3, the seal packing 50 attached to the grill door 40 has an outer thin portion 51 a and an inner thin portion 51 b that are continuous along the outer peripheral shape of the grill door 40, and the inner thin portion 51 b is screwed. About the part contact | abutted to the surface 12, it is formed so that the curved thin part 51c may continue with the inner thin part 51b by the cross-sectional U shape detouring the screw fixing surface 12 (refer FIG.6 and FIG.7).
In this embodiment, the portion of the inner thin portion 51b that contacts the screw fixing surface 12 has a U-shaped cross section that bypasses the screw fixing surface 12, and the curved thin portion 51c is formed continuously with the inner thin portion 51b. However, the portion of the outer thin portion 51a that contacts the screw fixing surface 12 has a U-shaped cross section that bypasses the screw fixing surface 12, and the curved thin portion 51c is formed continuously with the outer thin portion 51a.

  In FIG. 4, the seal packing 50 attached to the back plate 42 of the grill door 40 has an outer thin portion 51 a and an inner thin portion 51 b on the side facing the contact surface 11. There are a plurality of convex portions 52 for fixing the seal packing 50 to the grill door 40 on the contact side, and these convex portions 52 are respectively inserted into a plurality of elongated holes (not shown) provided in the back plate 42 of the grill door 40. The seal packing 50 is fixed to the grill door 40 by press-fitting.

An object to be heated cooked in the grill heating chamber 20 because it is in contact with the flat surface portion 11a of the abutting surface 11 attached to the cooker body 1 at two locations of the outer thin portion 51a and the inner thin portion 51b of the seal packing 50. Can be prevented from leaking from the gap between the grill door 40 and the contact surface 11 when the smoke generated from the air flows around the front opening 21 of the grill heating chamber 20.
Further, when the grill door 40 is pushed backward so as to be closed, the grill door 40 is slightly inclined due to the mounting state of the grill door 40 and variations in manufacturing, and the gap between the grill door 40 and the contact surface 11 is uniform vertically. Even if the seal packing 50 may be lost, the seal packing 50 has two portions, the outer thin portion 51a and the inner thin portion 51b. Even if one of them is not in contact with the contact surface 11, the other is in contact with the contact surface 11, so that the smoke generated from the heated object cooked in the grill heating chamber 20 It is possible to prevent smoke from leaking from the gap between the grill door 40 and the abutting surface 11 when flowing into the periphery of the front opening 21.

  As shown in FIG. 5, the seal packing 50 attached to the back plate 42 of the grill door 40 has an outer thin portion 51 a and a curved thin wall with a U-shaped cross section in the vicinity of the screw fixing surface 12 of the contact surface 11. There is a portion 51c, the outer thin portion 51a abuts on the flat surface portion 11a of the contact surface 11 without bypassing the screw fixing surface 12 of the contact surface 11, and the contact surface so as to bypass the screw fixing surface 12 of the contact surface 11 Since the curved thin-walled portion 51c comes into contact with the flat surface portion 11a of the eleventh flat portion 11a, the smoke generated from the heated object cooked in the grill heating chamber 20 is caused by the grill heating chamber 20 When the air flows into the periphery of the front opening 21, smoke can be prevented from leaking from the gap between the grill door 40 and the contact surface 11 by the double seal of the outer thin portion 51 a and the curved thin portion 51 c.

The root portions of the outer thin portion 51a and the inner thin portion 51b of the seal packing 50 are thick with respect to the tip portion, and when these thin portions 51a and 51b come into contact with the contact surface 11, an appropriate repulsive force is obtained. The degree of sealing with the contact surface 11 can be increased as compared with the case where the thin wall portion has a uniform thickness.
Moreover, since the seal packing 50 has the screw fixing surface 12 on the contact surface 11, the outer thin portion 51a, the inner thin portion 51b, and the curved thin portion 51c are in contact with the flat portion 11a of the contact surface 11. Smoke leakage can be eliminated stably.

As described above, in order to facilitate understanding, the grill door 40 is formed of the front plate 41, the back plate 42, and the like, and the handle attachment body 45 having the handle 45a is connected to the front plate 41. However, such constituent members are not limited to those connected to each other.
For example, the back plate 42, the outer peripheral plate 43, and the inner peripheral plate 44 may be integrally formed by, for example, press molding. Moreover, the handle attachment body 45 having the handle 45a and a part of the surface plate 41 in the range including the transparent window 41w may be integrally formed.
Furthermore, the material for forming the constituent members of the grill door 40 and the handle attachment body 45, and the connection state between them are not limited.

  In the above embodiment, the seal packing 50 having the outer thin part 51a, the inner thin part 51b, and the curved thin part 51c is attached to the surface of the grill door 40 that faces the grill heating chamber 20, and the seal packing 50 is cooked. The abutting surface 11 of the cooker body 10 abuts on the abutting surface 11, and a concave screw fixing surface 12 is provided on the abutting surface 11. A seal packing 50 having a portion 51b and a curved thin portion 51c is attached, the seal packing 50 is brought into contact with a surface of the grill door 40 facing the grill heating chamber 20, and a concave screw fixing surface is provided on the surface. It goes without saying that the present invention is applied even if it is.

Moreover, although the heating cooker of the said embodiment has shown the thing which heats a to-be-heated material by electromagnetic induction with the coil through which a high frequency current flows as the heating body 72, this invention is not limited to this. Neither is it mandatory.
For example, the heating body 72 may be an electric heater or a gas burner. At this time, the top plate 70 is removed or the types of the power switches 73 and 74 are changed according to the type of the heating body. Alternatively, cooking may be performed only in the grill heating chamber 20, and the top surface may not be provided with heating means.
Further, the grill heating chamber 20 is shown in which an upper heater 23 and a lower heater 24 are arranged. However, the present invention is not limited to this, and for example, only one of the upper heater 23 and the lower heater 24 is provided. May be arranged. The upper heater 23 and the lower heater 24 may be heating elements such as energized nichrome wires or gas burners.

  DESCRIPTION OF SYMBOLS 10 Cooker main body, 11 Contact surface, 11a Plane part, 12 Screw fixing surface, 13 Screw, 20 Grill heating chamber, 21 Front opening part, 23 Upper heater, 24 Lower heater, 30 Placement plate, 31 Dish support frame, 32 Placement net, 40 Grill door, 41 Front plate, 41w Transparent window, 42 Back plate, 42w Opening, 43 Outer plate, 44 Inner plate, 45 Hand attachment, 45a Hand, 46 Door plate, 50 Seal packing 51a outer thin part, 51b inner thin part, 51c curved thin part, 52 convex part, 70 top plate, 71 pan mounting circle, 72 heating element, 80 frame, 100 heating cooker.

Claims (2)

In a cooking device comprising a cooking device body, a grill heating chamber that is installed in the cooking device body and opens forward, and a grill door that opens and closes the opening of the grill heating chamber.
An elastic seal packing is attached to either the contact surface provided around the opening of the grill heating chamber or the inner surface of the grill door in the cooker body, and the seal packing is attached to the contact surface or the inner surface of the grill door. A heating cooker having two or more thin portions that abut against a flat surface, and the thin portions are continuous along the outer periphery of the grill door.   A concave-convex surface is formed on the contact surface or the grill door inner surface, and a part of one thin portion of the seal packing contacting the concave-convex surface bypasses the concave-convex surface and the flat surface 2. The cooking device according to claim 1, wherein the cooking device is formed as a curved thin portion that comes into contact.

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