JPS6015043Y2 - High frequency heating device - Google Patents

Description

[Detailed description of the invention] This invention relates to a high-frequency cooker, and its purpose is to make it easy to clean the area below the door that opens and closes the opening of the heating chamber of a microwave oven, etc., and to keep it clean at all times. The aim is to provide a high-frequency cooker that can.

Food to be heat-cooked is put in and taken out of the heating chamber opening in the high-frequency cooker, but at that time, food particles or boiling liquid may be spilled on the door or between the door and the main unit, or things adhering to the door may run down. Also, during cooking, the broth splashes out, sticks to the door, and drips down.

In particular, due to the use of high frequencies, there is a weak leakage of waves from the gap between the bottom of the door at the opening of the heating chamber and the door, so in order to minimize this, a satshu is installed and a radio wave absorber is placed inside it. .

In order to reduce wave leakage, the gap between the door and the door is kept very small (usually 2 to 3 inches).

Therefore, if this gap becomes contaminated with food, it is impossible to insert even a finger under the door, making cleaning it extremely difficult.

The present invention aims to eliminate the above-mentioned drawbacks, secure a cleaning space under the door, and provide a high-frequency cooker that is always clean.As an example, the present invention is applied to a microwave oven. The configuration will be explained based on the applied drawings.

Reference numeral 1 denotes a microwave oven body, and inside this body there is a heating chamber 2, and upper and lower heaters 3 and 4 are used to raise the ambient temperature and make it possible to cook in the oven.

Reference numeral 5 denotes a door pivotally supported at the opening of the heating chamber 2 on the front side of the main unit 1, and 6 is an operation panel provided near the door 5, which is a cooking selection switch for selecting the high frequency output of the microwave oven and oven cooking. , timer knob to control cooking time, upper/lower heater switch knob for oven cooking,
It is equipped with an internal temperature adjustment switch knob, a high-frequency oscillation switch button, a high-frequency output oscillation (in Chinese), and an indicator lamp to indicate when the heater is energized.

Reference numeral 7 denotes a satush that has a built-in radio wave absorber around the door 5.

8 is a door screen provided on the door 5, 9 is a handle, and 10 is a door arm, which controls the opening/closing angle of the door 5 and operates a door switch linked to the opening/closing of the door 5.

11 is the fulcrum of the door, and 12 is the fulcrum of the door arm.

The opening/closing mechanism of the door is a link device, and as shown in FIGS. 8 and 9, the main body 1 and the fulcrum 11 of the door are fixed links d, the door 5 is a crank a, and the door arm 10
The connecting rod is assumed to be a connecting rod, and the door arm spring 13 is assumed to be a lever C which can be expanded and contracted.

FIG. 3 shows the door 5 in an open state. The connecting rotary plate 14 provided in the door has two fulcrums, one is the door arm fulcrum 12 that pivotally supports the door arm 10, and the stopper It also serves as 15 fulcrum points.

Another fulcrum is a door fulcrum 11, which supports the door 5 rotatably.

When the door 5 is open as shown in FIG.
At the other end of the connecting rotation plate 14, a protrusion 19 near the door arm fulcrum 12 is fixed to the door 5 by spot welding or the like through a square hole. 17 is engaged with the fitting 18.

However, when the door 5 is closed to a certain angle as shown in Fig. 4, the pulling force by the spring 13 becomes stronger, so the protrusion 19 of the door arm 10 does not engage with the fixture 18 of the square hole 17. The door can be opened and closed.

It can be said that the opening/closing angle of this door is about 30 degrees, which is experimentally and ergonomically appropriate.

Therefore, when the opening/closing angle is around 300, the door arm 10
The protrusion 19 is disengaged from the fixture 18 of the square hole 17, and the door 5 is free to move, and when the door is pulled up from the fulcrum side to the handle side, it moves, creating a gap at the bottom.

At the same time, the stopper 15 rotatably supported by the door arm fulcrum 12 rotates in the direction of the arrow in FIG. 4 due to the elastic force of the torsion spring 20 and comes into contact with the main body 1, so that the door 5 will no longer be closed.

Further, since the door 5 is supported by the stopper 15, the door 5 itself does not shift downward.

In this way, the sash 21 and the main body 1 can be cleaned due to the large gap created between the sash 21 and the sash 21.

When the door 5 is pulled up as shown in Fig. 4, the user will feel uneasy if the door falls out. Therefore, the screw 22 for regulating the movement distance of the door 5 is inserted into the long hole 23 provided on the outside of the door. It is tightened to be slidable and removable, and when necessary, by removing the screws 22, it can be removed from the connecting rotation plate 14 as a door with a handle.

Note that one end of the connecting rotary plate 14 is rotatably attached to a fulcrum 11 attached to the main body 1, and the door arm 10 is rotatably attached by a door arm fulcrum 12 provided at the other end.

A door spring 13, which is a hook on the main body 1, is hooked onto the other end of the door arm 10, and is constantly biased to draw it into the heating chamber.

The door 5 with the handle 9 and other parts attached is inserted from the tip of the connecting rotating plate 14, and also inserted into the L-shaped protrusion at the tip of the connecting rotating plate 14 and the fitting 18 in the square hole 17 of the door 5. death,
The door 5 can be fixed by locking the distal end of the connecting rotary plate 14 and inserting the L-shaped protrusion 19 of the door arm 10 into the square hole 17.

As shown in the side view of the door in FIG. 5, the door 5 is configured to be able to slide through the elongated hole 23 while being fixed to the screw 22.
Also, Fig. 6 and a sectional view taken along the line A-A' in Fig. 6, Fig. 7
In the figure, the connecting rotary plate 14 is fixed or slidably attached from the outside of the door 5 with screws 22 or the like.

As described above, according to the present invention, it is possible to easily form a gap between the door and the door, which is the part that is most likely to get dirty, which is convenient during cleaning. We were able to provide a high-frequency heating device that is considerate in terms of handling and safety, such as being able to minimize the gap between the two.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a high-frequency heating device showing an embodiment of the present invention. Fig. 2 is a longitudinal sectional view of Fig. 1, Fig. 3 is an enlarged sectional view of the door, Fig. 4 is an enlarged sectional view showing the door at an opening/closing angle of about 300 degrees, and the stopper in contact with the main body. Figure 5 is an enlarged side view of the door, Figure 6 is an enlarged side view of the main part of the present invention with the choke cover removed, Figure 7 is an enlarged sectional view taken along line A-A' in Figure 6, and Figure 8 is a link. The configuration diagram of the mechanism, Figure 9 is the 8th
A configuration diagram comparing the configuration shown in the figure and the parts of the present invention. 1...Main body, 2...Heating chamber, 5...
...Door, 7...Satush, 10...
・Door arm, 11... Door fulcrum, 12...
... Door arm fulcrum, 14 ... Connection rotation plate, 15 ... Stopper, 16 ... L-shaped projection, 17 ... Square hole, 18... Square hole fitting, 22... Screw, 23... Long hole.

Claims (4)

[Scope of utility model registration request] (1) A heating chamber opening/closing door having a long hole on the side, a connecting rotary plate having a screw passing through the long hole and a door engaging part, and a fulcrum for opening and closing the door at the end of the connecting rotary plate that pivots. a locking part that is connected to a spring member with one end pivotally supported on a door arm fulcrum of a connecting rotating plate and the other end biased toward the main body, and provided on the door at a door opening angle of a certain value or more on the fulcrum side. It consists of a door arm having an engaging part that engages with the door arm, and a stopper mechanism that is pivotally supported on the door arm fulcrum and interlocks with the sliding movement of the door,
A high-frequency heating device characterized in that the door is configured to be vertically movable within the range of the elongated hole at a door opening angle position smaller than the certain angle. (2) The high-frequency heating device according to claim 1, which is a utility model registration, and has an L-shaped protrusion that engages with the door end at the hinge side end as the door engaging portion of the connecting rotary plate. (3) It has a protrusion as an engaging part on the fulcrum side of the door arm,
2. The high-frequency heating device according to claim 1, wherein the door has a square hole fitting at a position corresponding to the protrusion at a door opening angle of 30 degrees as a locking part of the door. (4) Request for utility model registration for a stopper mechanism in which a torsion spring is connected to the stopper at one end, the other end is connected to the connecting rotating plate, and is biased in the direction of rotating the stopper toward the main body, wound around the door arm fulcrum. The high frequency heating device according to item 1.