JP2520708Y2 - microwave - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial application> The present invention relates to a microwave oven in which a door opening / closing detection switch for detecting opening / closing of a door for opening / closing an opening of a heating chamber is provided in a range main body.

<Prior Art> A conventional microwave oven, as shown in FIG. 4 to FIG.
A door 22 for opening and closing an opening of a heating chamber (not shown) is provided in the range main body 21, and a door opening / closing for detecting the opening / closing of the door 22 is provided on the range main body side of the front plate 23 of the heating chamber of the range main body 21. A success detection switch 24 is provided.

An operation lever body 25 for turning ON / OFF the door opening / closing detection switch 24 is rotatably provided.
The front plate 23 is provided with a through hole 27 through which the front end portion 26 of the front plate 26 projects toward the door.

An elastic body 28 is provided which constantly urges the operation lever body 25 in the direction of the front plate 23 toward the door and causes the tip portion 26 to project toward the door side from the through hole 27, and the tip portion 26 has a door of the tip portion 26. A regulation body that regulates the protrusion to the side is provided.

Attach the front end 26 of the operation lever body 25 to the door 22 to the front plate.
There was provided a projection 30 which is pressed toward the range main body 23 to turn on the door opening / closing detection switch 24 by the operation lever body 25.

<Problems to be Solved by the Invention> With the configuration described above, the tip portion 26 of the operation lever body 25 is pressed toward the range main body side of the front plate 23 even when the door 22 is opened. Therefore, for example, when cleaning the heating chamber or the surface of the front plate 23 on the door side, a finger is accidentally inserted into the through hole 27 of the front plate 23, and the finger is the tip of the operation lever body 25.
There is a risk of being injured by being sandwiched between the front plate 23 and the surface of the front plate 23 on the range main body side or contacting the inner wall of the through hole 27.

An object of the present invention is to provide a microwave oven which solves the above problems.

<Means for Solving the Problems> In order to achieve the above object, the microwave oven of the present invention is
A door opening / closing detection switch, wherein a door for opening / closing the opening of the heating chamber is provided in a range main body having a heating chamber, and a door opening / closing detection switch for detecting opening / closing of the door is provided in the range main body. A control lever for turning ON / OFF is provided slidably, a through hole is provided in the front plate of the heating chamber for projecting the tip of the control lever toward the door side, and the control lever is always biased toward the door. An elastic body for projecting the tip of the operating lever toward the door side from the through hole is provided, and the operating lever is pressed against the surface of the door when the door is closed to operate the door opening / closing detection switch. There is provided a stopper which slides toward the main body side and prevents the sliding at a position where the front end surface of the operation lever and the door side surface of the front plate are flush with each other.

<Operation> When the door is closed in the microwave oven with the above configuration, the surface of the door abuts against the tip of the operation lever and presses the operation lever toward the range main body. The operation lever slides to the range main body side by this pressing, the door open / close detection switch is turned on, and the stopper stops at the position where the front surface of the operation lever and the door side surface of the front plate are flush with each other. The operating lever does not slide further toward the range body.

<Embodiment> An embodiment of the microwave oven of the present invention will be described with reference to FIGS.

The microwave oven of the present invention is provided with a door 1 for opening and closing an opening of a heating chamber (not shown) in a range body (not shown), and the door is provided on a front side 2 of the heating chamber of the range body. A door open / close detection switch 3 for detecting the open / close state of 1 is provided on the mounting plate 4.

The door open / close detection switch 3 is attached to the mounting plate 4.
An operating lever 5 for ON / OFF operation is provided slidably, and a through hole 7 is provided in the front plate 2 for allowing a tip portion 6 of the operating lever 5 to project to the door side.

The operation lever 5 is provided with a spring 8 which is an elastic body for constantly urging the operation lever 5 in the direction of the front plate 2 toward the door and projecting the tip portion 6 from the through hole 7 toward the door of the front plate 2. The movement of the operating lever 5 in the direction of the front plate 2 is restricted, and the tip surface 9 of the tip portion 6 of the operating lever 5 and the door side surface of the front plate 2 slide on the same plane. Stoppers 10 and 11 are provided to prevent this.

The door 1 is provided with a choke cover 12 which comes into contact with and pushes the operation lever 5.

The mounting plate 4 has a stopper 1 for the operating lever 5 attached thereto.
Switches 13 and 14 that are turned on and off by 0 and 11 are provided.

 The operation of the microwave oven configured as described above is operated.

First, when the door 1 is closed, the choke cover 12 of the door 1 contacts the operation lever 5 and presses the operation lever 5. By this pressing, the operation lever 5 slides, the switches 10 and 13 are turned on by the stoppers 10 and 11, and the door open / close detection switch 3 is turned on.

At this time, the stoppers 10 and 11 come into contact with the switches 13 and 14 to prevent the operation lever 5 from sliding, so that the tip surface 9 of the tip portion 6 of the operation lever 5 and the door side surface of the front plate 2 are flush with each other. Therefore, the front plate 2 is prevented from sliding to the range body side from the position.

Further, since the front end surface 9 of the front end portion 6 does not slide from the same surface as the door side surface of the front plate 2 toward the range main body side even if the operation lever 5 is pushed when the door 1 is opened and cleaning is performed. ,
For example, when cleaning the heating chamber or the surface of the front plate 23 on the door side, a finger is accidentally put in the through hole 7 of the front plate 2, and the finger causes the operation lever 5 and the surface of the front plate 2 on the range main body side to be separated. There is no possibility of being injured by narrowing the gap or coming into contact with the inner wall of the through hole 7.

<Effect of Device> Since the microwave oven of the present invention has the above-mentioned configuration,
It is possible to reliably prevent a user from accidentally inserting his / her finger into the through hole of the front plate during cleaning and injuring himself. Also,
The operation lever is blocked by a stopper from sliding from the position where the front surface of the operation lever is flush with the door side surface of the front plate of the heating chamber toward the range body, so that the operation lever is It is possible to prevent the front end of the operating lever from being pushed into the surface of the range main body of the above, and being caught in the peripheral edge of the through hole of the surface of the front plate of the range main body of the front plate to always keep the door open / close switch in the same operation state. It is possible to accurately detect the opening and closing of the door.

[Brief description of drawings]

FIG. 1 is a sectional view showing a main part of an embodiment of the microwave oven of the present invention, FIG. 2 is a sectional view showing a state in which the operation lever of FIG. 1 is pushed, and FIG. 3 is a door of the microwave oven of the present invention. Cross section showing
FIG. 4 is a schematic view showing an example of a conventional microwave oven, FIG. 5 is a partially enlarged sectional view of FIG. 4, FIG. 6 is a sectional view of the door of FIG. 4, and FIG. 7 is heating of FIG. It is a front view which shows the front plate of a chamber. In the figure, 1: door, 2: front plate, 3: door open / closed detection switch, 5: operating lever, 6: tip, 7: through hole, 8: spring, 10, 11: stopper, 12: choke cover.

Claims (1)

(57) [Scope of utility model registration request] 1. A microwave oven in which a range main body having a heating chamber is provided with a door for opening and closing the opening of the heating chamber, and a door opening / closing detection switch for detecting opening / closing of the door is provided in the range main body. An operation lever for ON / OFF operation of the door open / close detection switch is slidably provided, a through hole for projecting the tip of the operation lever toward the door is provided on the front plate of the heating chamber, and the operation lever is operated in the door direction. An elastic body is provided that constantly biases the tip of the operation lever toward the door side through the through hole, and the operation lever is pressed against the surface of the door when the door is closed, and the door opening / closing detection switch is provided. A stopper that slides toward the range main body so that the sliding is performed at a position where the front surface of the operation lever and the front surface of the front plate are flush with each other. Microwave oven.