JP2001050545A - Oven toaster - Google Patents

Abstract

PROBLEM TO BE SOLVED: To evenly bake an object to be heated by devising an agitating form in a case. SOLUTION: This toaster comprises a case 1 in which an opening 1a with a door 2 to take in and out an object to be heated is formed on this side in the depthwise direction of an internal space; rod-form heaters 8 and 9 situated in a form extending laterally in the widthwise direction, in the case 1; and a fan 12 situated on the deep side positioned facing the door 2 in the case 1 and agitating air in the case 1. This constitution, since air is agitated in a manner to cross the heaters 8 and 9 between the deep wall side of the case 1 and the door 2 side, relieves a difference in an ambient temperature between the door 2 side and the deep wall side in the case 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oven toaster for stirring air in a case.

[0002]

2. Description of the Related Art As a conventional oven toaster of this kind, there is, for example, one disclosed in Japanese Patent Application Laid-Open No. H10-54566.

In this oven toaster, the inside of the case is heated by a heater, and the air in the heated case is agitated by a fan so that the ambient temperature in the case is made as uniform as possible. To make the baking condition good.

[0004] The heaters are rod-shaped, and are arranged so as to extend in the width direction in total of two heaters, one each at the top and bottom in the case.

The fan includes an impeller and a motor for driving the impeller. The fan sucks air in the case from the center of rotation of the impeller as the impeller rotates, and blows the air to the outer peripheral side. It is arranged in an electrical component arrangement space provided on one of the left and right sides. The air in the case is sucked from the rotation center side of the impeller and blown out to the outer peripheral side of the impeller, and is then turned by the fan cover installed in the electrical component placement space and returned into the case. It has become.

[0006]

In the above prior art, since the air in the case is agitated along the longitudinal direction of the heater between the right and left side walls of the case by a fan, the atmosphere on the door side of the case is reduced. The temperature was lower than the ambient temperature on the back wall side of the case, and some unevenness in burning occurred. From this, it can be said that the form of stirring the air by the fan is inappropriate, and there is room for improvement here.

[0007] In view of such circumstances, it is an object of the present invention to provide an oven toaster in which the shape of air stirring in the case is devised so that the object to be heated can be evenly fired.

[0008]

According to a first aspect of the present invention, there is provided an oven toaster having a case in which an opening with a door is provided at a front side in a depth direction of an internal space for inserting and removing an object to be heated, and a width of the case in the case. It includes a rod-shaped heater installed in a form extending in the direction, and a fan installed on the back wall side facing the door in the case and agitating the air in the case.

In this configuration, since the heater is traversed between the back wall side and the door side of the case to stir the air, the difference in the ambient temperature between the door side and the back wall side in the case is different. Can be reduced.

According to a second aspect of the present invention, there is provided an oven toaster, wherein the heater according to the first aspect is provided on the ceiling wall side and the bottom wall side with a heating object mounting net shelf provided in the case interposed therebetween. A total of two are installed.

This configuration is based on the premise of the first aspect, and the inside of the case can be efficiently heated.

According to a third aspect of the invention, there is provided an oven toaster, wherein the heater according to the first or second aspect is disposed closer to the door than the center of the case in the depth direction.

This configuration is based on the premise of the first or second aspect, so that the atmosphere around the depth of the case can be heated in a well-balanced manner.

According to a fourth aspect of the present invention, there is provided an oven toaster, wherein the fan according to any one of the first to third aspects is disposed substantially at the center in the width direction of the case.

This configuration is based on the premise of the first to third aspects. The rod-shaped heater has a characteristic that radiant heat from the center in the longitudinal direction tends to be higher than radiant heat from both ends in the longitudinal direction. We pay attention to the fact that it is possible to agitate the high radiant heat.

According to a fifth aspect of the present invention, there is provided an oven toaster comprising: the fan according to any one of the first to fourth aspects;
The motor comprises a motor for driving the impeller, and the air in the case is sucked in from the center of rotation and blown out to the outer peripheral side as the impeller rotates.

This configuration is based on the configuration of the first to fourth aspects. In particular, when the configuration of the fourth aspect is premised, the air heated at the center in the longitudinal direction of the rod-shaped heater can be efficiently used. Be able to stir.

According to a sixth aspect of the present invention, there is provided the oven toaster according to any one of the first to fourth aspects, wherein:
Provide a reflector that reflects the radiant heat from the heater to the door side in a state that covers at least the entire back wall, and regarding this reflector,
The upper region is inclined toward the door from the middle of the height direction, and the fan is installed in a space facing the inclined portion and the case.

This configuration is based on the configuration of claims 1 to 4, so that the radiant heat of the heater can easily reach the door side, and the installation place of the fan can be secured without waste.

According to a seventh aspect of the present invention, there is provided the oven toaster according to the sixth aspect, wherein the fan comprises an impeller and a motor for rotating the impeller. The air is sucked and blown out to the outer peripheral side, and the reflection plate is provided with an air inlet to the impeller side and an air outlet from the impeller.

This configuration is based on the configuration of claim 6, and enables good agitation of air in the case regardless of the presence of the reflection plate.

According to an eighth aspect of the present invention, in the oven toaster, the outlet of the seventh aspect is disposed closer to the door than the air inlet.

This configuration is based on the configuration of claim 7, and it is possible to avoid the occurrence of a short cycle phenomenon in which air blown out from the outlet is sucked into the inlet.

According to a ninth aspect of the present invention, in the oven toaster according to any one of the sixth to eighth aspects, the center of rotation of the impeller is substantially horizontal with respect to the support plate bridged between the left and right side walls of the case. It is assumed that it is attached in the state where it is.

This configuration is based on the premise of claims 6 to 8 and improves the rotation characteristics of the impeller.
The support plate also helps to reinforce the case.

The oven toaster according to the tenth aspect of the present invention
In the ceiling wall and the bottom wall of the case according to any one of claims 6 to 9, ventilation holes are provided for communicating heat inside and outside the case to release heat generated from the motor of the fan.

This configuration is based on the configurations of claims 6 to 9 and is advantageous in stabilizing the characteristics of the motor for a long time.

The oven toaster of the eleventh aspect is
A case in which an opening with a door for taking in and out the object to be heated is provided on the near side in the depth direction of the internal space, a net shelf arranged in a substantially horizontal position in the case, and at least one of the upper and lower sides of the net shelf in the case. A rod-shaped heater installed in a form extending in the width direction of the case, wherein the case and the net shelf are set to a size capable of arranging two substantially square slice pans in front and rear of the depth direction thereof, and However, it is installed closer to the door than the center in the depth direction of the case.

With this configuration, the atmosphere before and after the depth direction of the case having a large depth dimension can be heated in a well-balanced manner.

The oven toaster of the twelfth aspect of the present invention
The net shelf according to claim 11 is arranged so as to be able to be taken out and put in a substantially horizontal posture in conjunction with opening and closing of the door, and this net shelf is provided on the inner surface of the door and on both left and right sides of the case. It is hooked on the cam-shaped long hole, and the cam-shaped long hole is installed on the back side of the heater.

This configuration is advantageous in improving the posture stability of a net shelf having a large depth dimension.

The oven toaster of the thirteenth aspect of the present invention
According to the eleventh or twelfth aspect, a fan is provided in the case on the back wall side facing the door and agitates the air in the case.

In this configuration, the air in the case having a large depth dimension is circulated in a wide area.

[0034]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described based on embodiments shown in the drawings.

FIGS. 1 to 6 show an embodiment of the present invention. 1 is a perspective view showing a state in which the door of the oven toaster is opened, FIG. 2 is a side view showing an internal configuration of the oven toaster, FIG. 3 is a front view showing an internal configuration of the oven toaster, and FIG. FIG. 5 is a plan view showing an internal configuration of the toaster, FIG. 5 is a perspective view showing a state where the case is disassembled, and FIG. 6 is a schematic view showing a state where four slice breads are placed on a net shelf.

In the drawing, A indicates the entire oven toaster. The oven toaster A has an opening 1a on the front surface of the case 1 for taking in and out the object to be heated. A door 2 is attached to the opening 1a of the case 1 so as to be openable and closable in a forwardly inclined form.

A heating chamber 3 is provided in the case 1. The heating chamber 3 is disposed inside the left and right side walls of the case 1 via a required gap, and the heat shield plates 4 and 5 are disposed inside the inner wall of the case 1 via the required gap. It is formed by being surrounded by a reflection plate 6 and a reflection plate 7 provided inside a ceiling wall of the case 1 via a required space.

The gap between one side wall of the case 1 and one heat shield plate 5 is set to be larger than the gap between the other side wall and the other heat shield plate 4 and is illustrated here. No electrical components are stored. The upper and lower regions of the reflector 6 on the back wall side are inclined toward the door 2 from the middle in the height direction.
These inclined portions are denoted by reference numerals 6a and 6b.

In the heating chamber 3, on the ceiling wall side and the bottom wall side, bar-shaped heaters 8 and 9 are installed one by one so as to extend in the width direction of the case 1. This heater 8,
Numeral 9 is located closer to the door 2 than the center of the heating chamber 3 in the depth direction.

A net shelf 10 on which an object to be heated is placed between the upper and lower heaters 8 and 9 in the heating chamber 3 is disposed in a substantially horizontal posture. The net shelf 10 has its front portion hooked to locking pieces 2a, 2a provided at both ends of the inner surface of the door 2, and a support rod 10 provided at the rear portion thereof.
a, 10a are engaged with the partially arcuate cam-shaped elongated holes 11, 11 provided in the left and right heat shield plates 4, 5 of the heating chamber 3, whereby the net shelf 10 opens and closes the door 2. It can be moved in and out of a nearly horizontal position in conjunction with.

By the way, the oven toaster A having the above configuration
Then, as shown in FIG. 6, the planar outer dimensions of the case 1 and the net shelf 10 are designed so that a total of four square slice breads P are arranged in the depth direction and the left and right direction, and four slices can be baked at a time. I have. When the net shelf 10 is lengthened in the depth direction in this way, as shown in FIG. 2, the support rods 10a and 10a provided at the rear of the net shelf 10 and the cam-shaped long holes 11 and 11 It is preferable that the net shelf 10 be stably supported by disposing the net shelf 10 on the back wall side.

In this embodiment, a fan 12 for stirring the air in the heating chamber 3 is provided in a substantially triangular gap in a side view formed between the inner wall of the case 1 and the upper inclined surface 6a of the reflector 6.
Is provided, and will be described in detail below.

That is, the fan 12 has a configuration in which the impeller 13 has a shape in which air is sucked in from the center of rotation and blows out to the outer peripheral side with rotation, and a motor 14 for driving the impeller 13 to rotate. This fan 12 has its motor 14
However, the belt-shaped support plate 1 bridged between the left and right heat shield plates 4 and 5 in a state where the rotation shaft 14a is in a substantially horizontal posture.
5 attached. The support plate 15
Is also useful for reinforcing the entire heating chamber 3.

The upper inclined surface 6a of the reflector 6 has
An intake port 16 to the impeller 13 side and outlets 17, 17 from the impeller 13 are provided, and the impeller 13, the intake port 16, and the outlets 17, 17 are covered. Air outlet 1 for sucked air
A fan cover 18 for guiding to 7, 7 is attached.

The outlets 17, 1 on both sides in the left-right direction.
Numeral 7 is formed so as to protrude toward the door 2 side from the intake port 16 at the center in the left-right direction, so as to prevent the occurrence of a short cycle phenomenon in which air blown out from the outlets 17 is sucked into the intake port 16. Has become.

Further, ventilation holes 19, 2 for communicating the inside and outside of the case 1 and releasing the heat generated from the motor 14 of the fan 12 are provided on the ceiling, back and bottom walls of the case 1.
0 and 21 are provided.

Next, the operation of the oven toaster A will be described.

That is, when the heating operation is started, the heaters 8 and 9 are driven to heat the air in the heating chamber 3, and the motor 14 of the fan 12 is driven to drive the impeller 13. Is rotated to stir the air in the heating chamber 3.

That is, when the impeller 13 rotates, the fan 12 draws the air in the heating chamber 3 from the intake port 16 to the fan cover 18 side, and the direction of the air is changed by the fan cover 18. 17 to heating room 3
It starts to blow inside.

The heaters 8 and 9 each have a coiled nichrome wire housed inside a glass tube.
Due to its structure, radiant heat from the longitudinal middle region tends to be higher than radiant heat from the longitudinal both end regions. Moreover, as is well known, when the air in the heating chamber 3 is heated,
It tends to rise above the heating chamber 3.

In consideration of such a phenomena, in this embodiment, by disposing the impeller 13 of the fan 12 in the longitudinally intermediate region of the upper heater 8, the ambient temperature in the heating chamber 3 tends to increase. The air in the rear wall side area is sucked into the fan cover 18 side by the fan 12 and blown out to the door 2 side area where the ambient temperature in the heating chamber 3 tends to be low. Thereby, the heating chamber 3
Since the ambient temperature of the whole area can be made almost uniform,
The object to be heated such as sliced bread can be evenly baked.

Also, in this embodiment, focusing on the fact that the ambient temperature on the door 2 side in the heating chamber 3 tends to be lower than the ambient temperature on the back wall side of the heating chamber 3, the heaters 8 and 9 are heated. It is installed closer to the door 2 than the center position in the depth direction of the room 3. This is advantageous in making the ambient temperature of the entire heating chamber 3 substantially uniform.

It should be noted that the present invention is not limited to the above-described embodiment, and various applications and modifications are conceivable. (1) In the oven toaster A of the above embodiment, the planar outer dimensions of the case 1 and the net shelf 10 are designed such that four square slice breads are arranged two by two in the depth direction and the left and right direction. The embodiment can be implemented in a form in which the planar outer dimensions of the case 1 and the net shelf 10 are designed so that two square slice breads are arranged in the left-right direction.

[0054]

According to the present invention, the air inside the case is agitated by the fan so as to cross the heater so that the difference in the ambient temperature between the back wall side and the door side where the difference in the ambient temperature tends to increase is increased. Since it is designed to circulate well, it is possible to make the temperature of the atmosphere in a wide area in the case substantially uniform, so that the object to be heated such as a slice bread can be evenly fired.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a door of an oven toaster according to an embodiment of the present invention is opened.

FIG. 2 is a side view showing the internal configuration of the oven toaster.

FIG. 3 is a front view showing the internal configuration of the oven toaster.

FIG. 4 is a plan view showing the internal configuration of the oven toaster.

FIG. 5 is a perspective view showing a state in which the case is disassembled.

FIG. 6 is a schematic diagram showing a state where four slice breads are placed on a net shelf;

[Explanation of symbols]

 A oven toaster 1 case 1a opening 2 door 3 heating chamber 4,5 left and right heat shield plate 6 back reflector 7 ceiling reflector 8,9 heater 10 net shelf 12 fan

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Teruaki Taguchi 1-chome, Shoda-cho, Seika-cho, Soraku-gun, Kyoto F-term in Sanyo Home Tech Co., Ltd. 3L087 AA02 AB20 AC30 CB07 CC01 DA11 DA12

Claims (13)

[Claims] 1. A case provided with an opening with a door for taking in and out an object to be heated on the near side in the depth direction of the internal space, a rod-shaped heater installed in the case so as to extend in the width direction thereof, and the case. And a fan installed on the inner wall side facing the door inside to agitate the air in the case. 2. The oven toaster according to claim 1, wherein a total of two heaters are provided, one on the ceiling wall side and one on the bottom wall side, with a mesh shelf for placing the object to be heated disposed in the case interposed therebetween. The oven toaster characterized by being done. 3. The oven toaster according to claim 1, wherein the heater is installed closer to a door than a center position in a depth direction of the case. 4. The oven toaster according to claim 1, wherein the fan is provided substantially at the center of the case in the width direction. 5. The oven toaster according to claim 1, wherein the fan includes an impeller and a motor for driving the impeller, and the fan is rotated from the rotation center side in the case with the rotation of the impeller. It inhales air and blows it out to the outer periphery.
An oven toaster characterized in that: 6. The oven toaster according to claim 1, wherein a reflection plate is provided in the interior space of the case to reflect radiant heat from the heater to the door side so as to cover at least the entire back wall. The reflection plate is characterized in that an upper region from the middle of the height direction is inclined toward the door side, and the fan is installed in a space facing the inclined portion and the case. Oven toaster. 7. The oven toaster according to claim 6, wherein the fan includes an impeller and a motor for driving the impeller, and the air in the case is sucked from a rotation center side of the impeller as the impeller rotates. An oven toaster, wherein the reflector plate is provided with an air inlet to the impeller side and an air outlet from the impeller. 8. The oven toaster according to claim 7, wherein the outlet is located closer to the door than the air inlet. 9. The oven toaster according to claim 6, wherein the fan is arranged such that the center of rotation of the impeller is substantially horizontal with respect to a support plate spanned between left and right side walls of the case. An oven toaster, which is attached. 10. The oven toaster according to any one of claims 6 to 9, wherein a ventilation port for communicating heat inside and outside of the case and releasing heat generated from the motor of the fan is provided in the ceiling wall and the bottom wall of the case. An oven toaster, which is provided. 11. A case provided with an opening with a door for taking in and out the object to be heated on the near side in the depth direction of the internal space; a net shelf arranged in a substantially horizontal position in the case; A bar-shaped heater installed in at least one of the upper and lower sides in a form extending in the width direction of the case, wherein the case and the net shelf are set to a size capable of arranging two substantially square slice breads in front and behind the depth direction. The oven toaster, wherein the heater is installed closer to a door than a center position in a depth direction of the case. 12. The oven toaster according to claim 11, wherein the net shelf is arranged so as to be able to be taken in and out in a substantially horizontal posture in conjunction with opening and closing of the door, and the net shelf is provided with an inner surface of the door and a case. An oven toaster characterized by being hooked on cam-shaped long holes provided on both left and right sides of the heater, wherein the cam-shaped long holes are installed on the back side of the heater. 13. The oven toaster according to claim 11 or 12, further comprising a fan installed in the case on the back wall side facing the door and stirring the air in the case.