JPH07113526A - High-frequency heating device - Google Patents

Abstract

PURPOSE:To prevent the inclination of a wire net even when the wire net is pulled out toward this side by a method wherein the configuration of a hole at the deep side of a rail is configured so as to be longer in lateral direction while the hole at this side of the rail is configured so as to be longer in transversal direction. CONSTITUTION:The configuration of holes for hooking the pins 22 of a rail 21 is formed so as to have an oblong configuration formed by connecting a hole 25, having a diameter larger than the tip end section of the pin 22, and a larger hole 26, having a diameter larger than the root section of the pin 22, while the diameter of the hole at the deep side is made so as to be longer in the lateral direction thereof but the hole at this side is configured so as to be longer in transversal direction, when the rail 21 is seen from the side of an inlet port for a heating chamber 2 under a condition that the rail is attached to the side of the heating chamber 2. Accordingly, the movement of the rail 21 in fore-and-aft direction is regulated by the hole 25 of this side while the movement of the same in up-and-down direction is regulated by the hole 26 of deep side and, therefore, the rail 21 can be fixed in either fore-and-aft direction or up-and-down direction. According to this method, the rear side of the rail will never be lifted under a condition that the wire net 20 is pulled out fully into this side and, accordingly, the inclination of the wire net 20 can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high frequency heating device for heating and cooking with both a high frequency wave and a heater in the same heating chamber,
In particular, it relates to the improvement of the structure using a rectangular type mesh net.

[0002]

2. Description of the Related Art The structure of a high frequency heating apparatus of this type will be described with reference to FIG.

In FIG. 5, there is a heating chamber 2 in the main body 1, and an opening / closing door 4 is provided at the entrance of the heating chamber for taking food in and out. The high frequency oscillated by the high frequency oscillator 15 is guided by the waveguide 5, and is radiated into the heating chamber 2 by the rotating antenna 6 which is rotationally driven by the antenna motor 19. Reference numeral 16 denotes a cooling fan for cooling the high frequency oscillator and other electric parts. 7 is a mounting table on which the food to be heated is placed, and since it is made of a heat-resistant low dielectric constant material such as crystallized glass, the high frequency wave radiated by the rotating antenna 6 passes through the food placing table 7, It is absorbed by the food to be heated. Reference numeral 8 denotes a hot air circulating fan for supplying hot air, which is driven to rotate by a motor 13 and supplies hot air heated by an electric heater 9 into a heating chamber from an outlet 12 provided on a rear wall 11 of the heating chamber. Reference numeral 14 is an intake port for returning the air from the heating chamber 2 into the hot air chamber 10, and is provided at a substantially central portion of the heating chamber rear wall 11. 20 is a mesh net used when cooking food using hot air, and is supported by rails 21 made of porcelain material. The rail 21 is designed so that the height position of the mesh net can be changed in two steps, and is attached so as to be hooked on the pin 22 fixed to the side wall of the heating chamber so that it can be detached for cleaning or the like. There is.

[0006] In the above-mentioned structure, a menu that requires a mesh net in the case of simultaneously heating with both a conventional high frequency wave and a heater will be described below.

When the baby mesh net contacts the wall surface of the heating chamber during use, it sparks due to high frequency. Therefore, the rail supporting the mesh net must be made of a dielectric material so as to insulate between the mesh net and the wall surface of the heating chamber. there were. In addition, the cross-sectional shape of the rail was approximately U-shaped, and a mesh was sandwiched vertically between the rails to slide in the front-back direction. Furthermore, if this rail is fixedly attached to the wall of the heating chamber, food scraps will get into the gap between the rail and the wall and it will be difficult to clean, so it is necessary to attach it detachably so that it can be easily cleaned. Met. Further, in order to prevent the mesh net from contacting the wall surface of the heating chamber even when the mesh net is fully pushed inward, a stopper is usually provided on the back side of the rail.

[0006]

In the case of a detachable rail that can be easily attached and detached, it is common to hang a hole provided in the rail on a pin attached to the wall of the heating chamber. In this case, in order to take out food. When the rail is fully pulled out to the front, the rear side of the rail rises upward as shown in the conventional example in FIG. 6, and the sling net tilts, resulting in very poor stability.

In addition, if the baby net is not inserted into the U-shaped groove of the rail in a normal state and used, but is accidentally placed on the U-shape and used, the baby net will be There was a problem that the wall surface of the heating chamber was contacted and sparked.

Therefore, it is a first object of the present invention to provide a rail structure which can be easily attached and detached and which is stable and does not tilt even when the scoop is pulled out to the front.

A second object is to provide a rail structure capable of preventing misuse of the baby net.

[0010]

In order to achieve the first object, the present invention provides a heating chamber for heating food in a main body, a high frequency oscillator for supplying a high frequency to the heating chamber, and a food to be heated. A square type mesh net for mounting, a pair of rails made of a dielectric material which is detachably attached to the side wall of the heating chamber and slidably supports the mesh net in the front-rear direction, and the rail is held. In order to do so, a pin fixed to the side wall of the heating chamber is provided, the pin has a shape in which the diameter of the tip portion is larger than the root portion, and each rail is provided with a pair of holes for hooking on the pin, The hole has a long hole shape in which a hole having a diameter larger than the tip portion of the pin and a hole having a diameter smaller than the tip portion of the pin and larger than the root portion of the pin are connected to each other, and the hole forms a rail. With it attached to the side wall of the heating chamber From the heat chamber inlet side, the far side is a horizontal, front side is to the vertically long hole shape.

In order to achieve the second object, the present invention provides a heating chamber for heating food in the main body, a high frequency oscillator for supplying a high frequency to the heating chamber, and a corner for placing food to be heated. Type mesh net, and a pair of rails made of a dielectric material that is detachably attached to the side wall of the heating chamber and slidably supports the mesh net in the front-rear direction, and the rails support the load of the mesh net. A support part that supports, a pressing part that regulates the upward movement of the baby mesh, a stopper part that positions the baby mesh in the depth direction, and a protrusion for preventing misuse provided on the upper surface of the pressing part, The pressing portion behind the center of the rail in the front-rear direction is cut, and the protrusion for preventing misuse is located in front of the center of the front-rear direction.

[0012]

In the high-frequency heating apparatus of the present invention, the hole shape for hooking on the pin provided on the rail is smaller than the hole having a diameter larger than the tip of the pin and the tip of the pin, and the root of the pin. Also has a long hole shape connecting holes with a large diameter, and when the rail is attached to the side wall of the heating chamber, when viewed from the heating chamber entrance side, the back side is horizontally long and the front side is vertically long hole shape. As a result, the movement of the rail in the front-rear direction is restricted by the front hole, and the movement in the up-down direction is restricted by the rear hole, so the rail can be fixed both in the front-rear direction and in the up-down direction. It is possible to prevent the rear side of the rail from being lifted up even when the net is pulled out to the front, and it is possible to prevent the slant net from tilting.

Further, by cutting the pressing portion behind the front-rear direction center of the rail and arranging the protrusion for preventing misuse in front of the front-rear direction center, the latch net is erroneously placed above the pressing portion. If you try to put it on the rack and use it, it will not be possible to use it in this state because the sling net will tilt and wobble, and the user will notice that it is wrong usage, so it is possible to prevent misuse. I can.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.
The main body of the high-frequency heating device is the same as that described in the conventional example, and therefore its description is omitted. Further, the same parts as those of the prior art are designated by the same reference numerals.

In FIGS. 1 and 2, there is a heating chamber 2 in the main body 1, and an opening / closing door 4 is provided at the entrance of the heating chamber for taking food in and out. High frequency oscillator 15
The high frequency oscillated by is guided by the waveguide 5,
It is radiated into the heating chamber 2 by the rotating antenna 6 which is rotationally driven by the antenna motor 19. Reference numeral 16 denotes a cooling fan for cooling the high frequency oscillator and other electric parts. 7 is a placing table for placing the food to be heated, which is made of a heat-resistant low dielectric constant material such as crystallized glass,
The high frequency wave radiated by the rotating antenna 6 passes through the food placing table 7 and is absorbed by the food to be heated. Reference numeral 8 denotes a hot air circulating fan for supplying hot air, which is driven to rotate by a motor 13 and supplies hot air heated by an electric heater 9 into a heating chamber from an outlet 12 provided on a rear wall 11 of the heating chamber. Reference numeral 14 is an intake port for returning the air from the heating chamber 2 into the hot air chamber 10, and is provided at a substantially central portion of the heating chamber rear wall 11. 20 is a mesh net used when cooking food using hot air, and is supported by rails 21 made of porcelain material. Rail 21 sets the height position of the baby net to 2
The pin 2 is fixed to the side wall of the heating chamber so that it can be detached for cleaning or the like.
It is attached so that it can be hooked to 2.

FIG. 3 shows an enlarged detail view of the rail 21 and FIG. 4 shows an enlarged side view of the pin 22. The tip portion 23 of the pin 22 has a larger diameter than the root portion 24, and the holes 25 and 26 provided in the rail 21 are hooked on the pin 22. Both holes 25 and 26 are the tip 2 of the pin.
A portion having a diameter larger than 3 and a portion B having a diameter smaller than the tip portion 23 and larger than the root portion 24 are connected to each other, and the hole 25 has an upper portion B portion and an upper portion A portion. The hole 26 has a vertically elongated shape, and the hole 26 has a horizontally elongated shape in which the B portion is on the rear side and the A portion is on the front side.

When the rail 21 is attached to the wall surface of the heating chamber, the rear end of the pin 23 is first passed through the A portion of the rear hole 26, and then the rail is pulled toward the front, and the B portion is the root portion 24 of the pin. A of hole 25 on the front side when caught on
Pass the tip 23 of the front side pin through the section, and then lower the rail. If you want to remove the rail, you can easily remove it by following the reverse procedure.

When the rail 21 is attached to the wall surface of the heating chamber in this manner, the forward and backward movement of the rail is restricted by the B portion of the front hole 25 and the root portion 24 of the pin, and the vertical movement is rearward. Since it is regulated by the B part of the hole 26 on the side and the root part 24 of the pin, even if a downward pushing force is applied in a state where the mesh net is drawn out as shown in FIG. It can be fixed so that it will not move.

Since the rail 21 is made of porcelain,
Since the dimensional variation at the time of manufacture is as large as about 10%, it is difficult to match the pitch dimension of the front and rear holes 25 and 26 with the pitch dimension of the pin.
It can be absorbed by designing the dimension C of the B portion in the front-rear direction to be large. Further, the rail 21 is provided with a support portion 27 for supporting the load of the baby net, a holding portion 28 for restricting upward movement of the baby net, and a stopper portion 29 for positioning the baby net in the depth direction. Since the back portion of the holding portion 28 is cut away from the center in the front-rear direction, and the protrusion portion 30 is provided in the upper portion slightly front side of the holding portion 28 in the front-rear direction. As shown in the figure, if you don't insert the mesh net properly and try to put it on the holder 28 by mistake, the mesh will come into contact with the wall of the heating chamber, and sparks will occur when operating at high frequency in this state. However, in this state, the sling net is greatly tilted and becomes unstable, so the user cannot use it in such a form.

[0020]

As described above, the following effects can be obtained in the high frequency heating apparatus of the present invention.

(1) By making the rear hole horizontally long and the front hole vertically long so that the rail can move freely in the front-rear direction, especially in the vertical direction on the rear side. It can be installed in a state where the movement of the mesh is restricted, so that even if a downward load is applied when the mesh net is pulled out to the front, the rail and mesh mesh will not tilt, and stable and easy to use mesh mesh support Can provide structure.

(2) Since the hole on the rear side of the rail is horizontally elongated in the front-rear direction, the dimension C of the hole on the rear side is increased to sufficiently absorb the dimensional variation between the front and rear holes of the rail. It is possible to design, and even if the rail is made of porcelain, it is cheap and easy to make, and at the same time, the quality can be stabilized.

(3) Further, by cutting the rear part of the rail pressing portion from the center in the front-rear direction and further providing a protrusion on the front side of the center of the pressing portion in the front-rear direction, it is attempted to use the scone net by mistake. Since it is unstable, it cannot be used, and therefore troubles such as sparks due to misuse can be prevented.

[Brief description of drawings]

FIG. 1 is a sectional view of a high-frequency heating device according to an embodiment of the present invention with a door opened.

FIG. 2 is a perspective view of the high-frequency heating device with a door opened.

FIG. 3 is a plan view of a rail portion of the high-frequency heating device.

FIG. 4 is a side view of a pin portion of the high-frequency heating device.

FIG. 5 is a sectional view showing a state in which the baby net of the same high-frequency heating device is misused.

FIG. 6 is a cross-sectional view of a conventional high-frequency heating device with a door opened.

[Explanation of symbols]

 1 Main Body 2 Heating Chamber 15 High Frequency Oscillator 20 Rail Mesh 21 Rail 22 Pins 25 and 26 Holes 28 Presser Section 30 Protrusion

Claims (3)

[Claims] 1. A heating chamber for heating food in a main body, a high frequency oscillator for supplying a high frequency to the heating chamber, a rectangular mesh net for placing food to be heated, and a side wall of the heating chamber. A pair of rails made of a dielectric material that is detachably attached and that slidably supports the baby mesh in the front-rear direction; and a pin fixed to a side wall of the heating chamber to hold the rail, Has a diameter of the tip portion larger than the root portion, each rail is provided with a pair of holes for hooking to the pin, and the holes have a diameter larger than the tip portion of the pin and the tip of the pin. Smaller than that of the pin and connected to a hole having a diameter larger than the root of the pin, and the hole is deep when viewed from the heating chamber inlet side with the rail attached to the side wall of the heating chamber. The side is horizontal and the front side is vertical High-frequency heating apparatus that feature that it has a shape. 2. A heating chamber for heating food in the main body, a high-frequency oscillator for supplying high frequency to the heating chamber, a rectangular mesh net for placing food to be heated, and a side wall of the heating chamber. A pair of rails, which are detachably attached and which are made of a dielectric material and slidably supporting the mesh net in the front-rear direction, are provided, the rails supporting the load of the mesh mesh, and the upward movement of the mesh net. A high-frequency heating device characterized by comprising: a pressing part for regulating the position, a stopper part for positioning the mesh net in the depth direction, and a protrusion for preventing misuse provided on the upper surface of the pressing part. 3. The high frequency wave according to claim 2, wherein the pressing portion at the portion behind the front-rear direction center of the rail is cut, and the protrusion for preventing misuse is located in front of the front-rear direction center. Heating device.