JPS6133442Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a high-frequency heating device used for cooking, and particularly relates to an improvement in an opening/closing door.

As shown in FIG. 1, the opening/closing door of this type of high-frequency heating device includes a microwave seal cavity 1 and a door body 3 placed inside an outer barrier 2.
The partition wall 4 is formed of a partition wall 4 having a cross-sectional shape, and a sealing plate 7 fixed to the base 5 of the partition wall 4 via screws 6. The leg portion 8a is located at a distance of λ/4 from the cavity opening. Further, an end of the inner barrier 9 is inserted between the base 5 of the partition wall 4 and the seal plate 7, and the seal plate 7
It is designed to be fixed to the partition wall 4 at the same time when it is fixed to the partition wall 4.

On the other hand, a door frame 10 is attached to the ends of the outer barrier 2 and the door body 3, and the end surfaces of the door frame 10 and the door body 3 are fitted into recesses provided in the door cover 11.

However, in the opening/closing door of the above type, the dimension of the base 5 of the partition wall 4 is approximately 20 mm, and its length is necessary for fixing the inner barrier 9 and the seal plate 7 and cannot be omitted, so the area of the see-through window is inevitably reduced. Moreover, since the mounting screws are exposed on the inner surface of the opening/closing door, it is difficult to clean them if oil or dirt gets on them, resulting in unsanitary conditions.

This idea was made in view of the above points,
The seal plate to form a part of the York cavity is L-shaped, the ends of the inner barrier of the seal plate are overlapped, and the seal plate and inner barrier are attached to the door body using screws inserted from the outside of the door body. It is an object of the present invention to provide a high-frequency heating device that is fixed, thereby preventing screws from being exposed on the inner surface of an opening/closing door, and allowing the area of a see-through window to be set large.

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 2, the same members as in FIG. 1 are given the same reference numerals.

In FIG. 2, reference numeral 20 is a sealing plate that forms a part of the chiyoke cavity 1, and the sealing plate 20 has an L-shaped cross section and has two sides on one side.
0a is locked to the door cover 11, and the bent portion 21 at the end of the other side 20b is brought into contact with the back surface of the door main body 3. In this case, the length of one side 20a of the seal plate 20 is set to be λ/4 from the cavity opening when combined with the door body 3. That is, the bent portion 21 of the seal plate 20
A mounting hole 22 is bored in the mounting hole 2.
2 to a positioning hole 23 provided in the door body 3, the mounting position of the seal plate 20 is determined.

On the other hand, a protrusion 25 provided at the end of the inner barrier 24 is brought into contact with the back side of the bent portion 21 of the seal plate 20 . A screw hole 26 is formed in the protruding piece 25 in correspondence with the attachment hole 22 provided in the bent portion 21.

Therefore, the hole 23 provided in the door body 3, the mounting hole 22 of the seal plate 20, and the screw hole 26 of the inner barrier 24
After aligning the
By screwing together, the seal plate 20 and the inner barrier 24 are integrally fixed to the door main body 3.

On the other hand, a screw 2 is provided at a portion of the outer barrier 28 placed on the front side of the door body 3 that corresponds to the screw 27.
A recess 29 is formed that is large enough to accommodate the head 27a of the outer barrier 28, and step portions 30 that engage with the door frame 10 are provided at both ends of the outer barrier 28.

Furthermore, notches 31 are provided at both ends of the door body 3, and claws 32 protruding from the inner surface of the door frame 10 are engaged with the notches 31.

Therefore, to assemble the opening/closing door, place the seal plate 20 on the back side of the door body 3 so that the positioning hole 23 and the mounting hole 22 are aligned, insert the screw 27 from the front side of the door body 3, Temporarily fasten. At the same time, the other end of the seal plate 20 is locked to the stepped portion of the door cover 11.

Next, the mounting hole 22 provided in the seal plate 20
Next, the inner barrier is placed so that the screw holes 26 provided in the projections 25 of the inner barrier 24 are aligned, and the screws 27 are screwed into the screw holes 26. As a result, the door body 3, the seal plate 20, and the inner barrier 24 are assembled integrally. In this case, since the screw 27 is screwed into the screw hole 26 provided in the projection piece 25, the tip of the screw 27 protrudes from the inner barrier 24 and is not exposed from the inner surface of the inner barrier.

Next, the outer barrier 28 is joined to the door body 3 side surface of the assembly in such a manner that the head 27a of the screw 27 can be accommodated in the recess 29 provided on the inner surface of the outer barrier. Then, the door frame 10 is fixed to both ends of the assembly to which the outer barrier 28 is joined, thereby completing the assembly of the opening/closing door.

The peripheral portion of the outer barrier 28 other than the transparent portion is, for example, silk-printed to enhance the aesthetic effect. That is, the screw 27 is configured so that it cannot be seen from the outside.

As described above, according to the present invention, the mounting screws do not protrude from the inner barrier, making it easier to clean the inner surface of the door, eliminating unsanitary conditions caused by the accumulation of oil and dirt, and eliminating the need for partitions like conventional ones. Since there is no need to provide a separate wall, the area of the see-through window can be expanded, making it easier to see the inside of the refrigerator and more reliably checking the cooking status of the food to be cooked.

[Brief explanation of the drawing]

Figure 1 is a partial sectional view of the door of a conventional high-frequency heating device, Figure 2 is a partial sectional view of the door of the high-frequency heating device of the present invention, and Figure 3 is a partially exploded view of the door. FIG. 1...Chiyoke cavity, 20...Seal plate, 22...Mounting hole, 23...Positioning hole, 24
...inner barrier, 25 ... protrusion, 26 ... screw hole,
27...Screw, 28...Outer barrier.

Claims (1)

[Scope of utility model registration request] The chiyoke cavity of the opening/closing door is formed by the door body and a sealing plate having a substantially L-shaped cross section, and the inner barrier supported by the support part by bending the inner end of the L-shaped sealing plate is attached to the door body. A high-frequency heating device characterized in that it is integrally assembled with screws inserted from the surface side of the door body, and an outer barrier is further arranged on the surface side of the door body so as to cover the screws.