JPS5935726A - High-frequency heating cooker - Google Patents

Abstract

PURPOSE:To positively hold a door-open state and reduce the leakage of micro waves in a door-close state by combining an axially supported arm and an actuating spring. CONSTITUTION:A hinge 4 fixed to a door 3 by means of a screw 11 is axially supported by a hinge shaft 12 to a main body 5, and is rotatable. The other end of the hinge 4 is pressed by a stress F1 of a compression spring 13. Further, since the other end of the compression spring 13 is connected to the main body 5 through a supporting member 14, a force is applied to the door 3 in a direction in which the door 3 is pressed against a front plate 2 of a heating chamber 1, that is, in a direction in which a couple of forces F2 is applied to the door 3, leak radio waves are reduced and the door 3 is closed, the door 3 is stably held at a closed state. In a state where the door 3 is opened, the stress F3 of the compression spring 13 imparts a couple of forces F4 to the door 3 to stably hold the door in a door open state. Thus, a material 9 to be heated and a dish 10 do not hit against an opening and closing mechanism of the door 3, and hence convenience for use is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a door opening/closing structure that allows a heating chamber to be opened and closed.

High-frequency heating cookers have a door to prevent microwave leakage from the heating chamber when heating the object in the heating chamber, but in order to increase the effectiveness of the door in reducing microwave leakage, ,
The door is pressed against the front plate of the heating chamber. A top view of a conventional high-frequency heating cooker is shown in FIG. 1, as shown in FIG.
A door 3 is provided opposite to the door 3, and the door 3 is connected to a hinge 4.
The tension spring 8 is pivotally supported by the main body 6 and is pressed against the front plate 2 of the heating chamber 1 by a tension spring 8 whose other end is moored to the main body 6 via the guide roller 6 and arm 7, thereby preventing microwave leakage from the heating chamber 1. was reduced. As shown in Figure 2,
When the door 3 is opened, the object to be heated 9 and the plate 1Q tend to hit the arm 7, resulting in poor usability and cleaning performance.In addition, the mechanism for opening and closing the door 3 requires a guide roller 6, etc. It was expensive due to assembly etc.

The present invention is intended to improve the above-mentioned conventional drawbacks, and will be explained below with reference to the drawings.

FIG. 3 is a top view of one embodiment of the high frequency cooking device according to the present invention, with the door 3 closed.

The hinge 4 fixed to the door 3 with a screw 11 has a hinge shaft 12
It is pivotally supported by the main body 5 and is rotatable. Hinge 4
The other end of the compression spring 13 is pressed by the stress F of the spring 13, and since the other end of the compression spring 13 is connected to the main body 6 via the supporting member 14, the door 3 is pressed against the front plate 2 of the heating chamber 1. In other words, the force couple F2 is applied in the direction in which the door 3 is pressed, reducing the leakage radio waves from the heating chamber, and the force is applied in the closing direction of the door 3.
It remains stable in the closed position. Here, the holding rod 16 is rotatably supported by a pin A 16 at the end of the hinge 4, and passes through a slidable hole in the engagement support 14, so that the screw 13 is compressed when the hinge 4 and This prevents it from deviating from between the supporting supports 14.

The supporting support body 14 is rotatably attached to the main body 5 at the end of the bottle B1.

Figure 4 shows the door 3 in an open state, and the stress F3 of (compression) (ne 13) applies a couple F4 to the door 3 along the same path as in Figure 3, making the door open state stable. The object to be heated 9 and the plate 10 do not come into contact with the opening/closing mechanism of the door 3, making it easy to use.

As explained in Figs. 3 and 4 above, when the door 3 is opened and closed, the stress applied to the door 3 is favorable in the closing direction when the door 3 is closed, and in the opening direction when the door 3 is opened. Yes, but Door 3 is closing the reason for this. FIG. 5 will be explained. The stress F5 of the compression spring 3 can be vector decomposed into a stress component F6 in the direction of the bottle A16 and the hinge shaft 12, which are the points of application of the stress F, and a component F7 in a direction perpendicular to F6, and the action of closing the door 3 is the stress component F7. , and conversely, the conditions necessary for the stress F7 to close the door are the hinge shaft 12 and the bottle A1.
From the extension line X-r connecting all 6, the position of bin B17 is door 3
When trying to open the bottle, the extension line xx' of the hinge shaft 12 and the bottle A16 is in the direction of movement. door 3
The same thing can be said about the stress of trying to open the door 3 when the door 3 is approximately closed.

Therefore, when the door 3 is opened by the maximum amount from the closed state,
The condition necessary to satisfy the direction of the force applied to the door 3 is that the bottle B17 swings as the extension line XX/ of the hinge shaft 12 and the bottle A16 draws around the hinge shaft 12 as the door 3 opens and closes. It will be fine if it is located within the angle.

Figure 6 shows the door opening/closing mechanism f: two sets are provided in A part and B part.
FIG. 2 is a perspective view of an embodiment of the high-frequency heating cooker according to the present invention with a vertically opening door, and a flat inner surface of the door is achieved by eliminating the door arm.

As described above, according to the present invention, the inner surface of the door is made flat to improve usability and cleaning performance, maintain the door open/closed state when opening and closing the door, and reduce microwave leakage when the door is open.
It is possible to provide an inexpensive high-frequency heating cooker due to reductions in material, processing, and assembly costs.

[Brief explanation of the drawing]

Fig. 1 is a front view of a conventional high-frequency cooking device with the door closed, Fig. 2 is a front view of the same with the door open, and Fig. 3 is a front view of the high-frequency cooking device according to an embodiment of the present invention with the door closed. Front view,
FIG. 4 is a front view of the same door in an open state, FIG. 5 is a front view illustrating the door opening/closing operation of the same cooker, and FIG. 6 is a perspective view showing another embodiment of the book 1all. 1...Heating chamber, 2...Front plate, 3...
...door, 4...hinge, 12 pa°° hinge shaft, 13...°°°compression) screw, 14...locking body, 16...bin . Name of agent: Patent attorney Toshio Nakao and 1 other person
1 Figure 2 Figure 3 Figure 4 Bi1 Figure 5 Figure 6

Claims (2)

[Claims] (1) A main body with a heating chamber inside, a door that is pivotally supported on a part of the main body and is provided to open and close the heating chamber, one end of which is fixed to the door, and the other end of which is attached via the shaft. It has a pivot arm connected to the biasing spring, and the other fulcrum of the biasing spring is arranged within the swing angle drawn by the biasing spring connection point of the pivot arm as the door opens and closes. This is a high frequency heating cooker that is characterized by: (2) The high-frequency cooking device according to claim 1, comprising a plurality of sets of pivot arms and biasing springs.