JPS5910491Y2 - High frequency heating device - Google Patents

Description

[Detailed description of the invention] This invention relates to a high-frequency heating device, especially the hinge part involved in opening and closing the door.The purpose of this invention is to simplify the door opening/closing mechanism and the hinge mechanism to make it easier to use. It is to be.

A typical high-frequency heating device has a door arm (not shown) with a movable fulcrum on the door that is linked to the opening and closing of the door (for example, 120°
However, in high-frequency heating equipment that has a heating function, the door arm cannot be attached to the top of the door due to the insulation structure of the top of the exterior wall, and it is not cost-effective. It has been considered to abolish the door arm in order to reduce the number of doors, but it has not been possible to implement it.

Moreover, even if it was implemented, the user had no choice but to endure the inconvenience.

That is, if the hinge side is even slightly higher, the door will close automatically, and an extra hand will be required to take out the object to be heated inside the heating chamber.

Furthermore, in the case of a high-frequency heating device with a built-in heater, the user may be burned by the high-temperature part of the closed door, or the object to be heated may fall.

Another conventional example is the one described in Japanese Utility Model Publication No. 43-3178, in which the side wall of the door is shaped to become wider toward the inside of the upper part, and a side wall is attached at one end of the inside of the side wall. A fulcrum shaft is integrally protruded at an angle parallel to the inclination of the cabinet, and the front end is pivotally supported in a cabinet whose front end is tilted to match the side wall so as to be openable and closable.

With this structure, the shape of the door and cabinet has sloping side walls and is wide, making it difficult to process and not suitable for mass production.

Also, even if you let go of the door during the opening operation, the door may close to the main unit and close, and if the door is hot, the user may come into contact with it and get burned. obtain.

Another conventional example is the one described in Japanese Utility Model Publication No. 46-14622, in which the door is mounted using a hinge with a special fulcrum angle. Doing so is disadvantageous in terms of parts management, workability, and cost.

The present invention aims to eliminate the above-mentioned drawbacks and simplify the structure, and one embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is an external perspective view of a general high-frequency heating device. As shown in FIG. It is pivoted at 5,
It can be opened and closed freely.

The door 3 is provided with a handle 6 for opening and closing the door 3 and a see-through window 7 through which the inside of the heating chamber 2 can be seen.

Around the door 3, there are an upper sash 10 containing radio wave absorbers 8, 9, etc., a lower sash 11, a left sash 12, an operation panel 14 on which a high frequency oscillation start button 13, etc. are installed.

Furthermore, the door arm described in the conventional example is not installed in the present invention.

The axes of the upper hinge 4 and lower hinge 5 in this case are the A-A' axis and the B
- It is shifted like the B' axis (Fig. 1).

Therefore, as shown in Fig. 1, when the door is closed, the gaps between the sash top 10, left 12, bottom 11, operation panel 14, and the door 3 are uniform, but when the door 3 is opened by about 90 degrees , As shown in Fig. 2, the gap between the left sash 12 and the door 3 becomes wider at the bottom, and force C is applied in a vector direction, which causes the door 3 to try to open.

Also, as shown in Fig. 3, when looking at the right side of Fig. 2, the gap between the door 3 and the main body 1 narrows at the bottom, and the force F is applied in a vector direction, and the door maintains its current state, that is, it does not close. , becomes the force that tries to open.

In other words, by shifting the fulcrums of the upper and lower hinges, this can be done without major modification.

As mentioned above, according to this proposal, it is possible to eliminate the door arm, etc., and the problem can be solved only by vertical deviation of the pivot point of the hinge, which simplifies parts, improves assembly workability, and ensures user safety ( It has great practical value, such as preventing burns.

[Brief explanation of drawings]

Fig. 1 is an external perspective view of a high-frequency heating device showing an embodiment of the present invention, Fig. 2 is an explanatory diagram of the gap relationship between the door and the left side of the sash, vectors, etc. when the door is opened approximately 90 degrees Celsius; The figure is an explanatory diagram of the gap relationship between the main body and the door, vectors, etc. when FIG. 2 is viewed from the right side. 1...Main body, 2...Heating chamber, 3...
... Door, 4 ... Above hinge, 5 ... Below hinge, 6 ... Handle, 7 ... See-through window,
10...Sash top, 11...Sash bottom, 12...Sash left, 14...
control panel.

Claims (1)

[Scope of utility model registration request] A heating chamber, a door provided on the front of the heating chamber so as to be openable and closable, upper and lower hinges provided separately above and below the door, and mounting portions for attaching the hinges above and below the front of the heating chamber. The front surface of the heating chamber is shaped into a substantially vertical plane, the door is positioned approximately parallel to the front surface of the heating chamber, and the mounting portion of the lower hinge is heated relative to the mounting portion of the upper hinge provided on the door. A high-frequency heating device configured to be displaced to a position close to or far from the room.