JP2002357324A - Heating cooking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To immediately stop the high frequency generator when the door is operated to open by turning off two switches connected to a high frequency generator when the swing angle of a door is relatively small. SOLUTION: A heating cooking device comprises the two switches 3 and 4 connected to the high frequency generator and a first transmitting means 6 and a second transmitting means 7 for transmitting the swing movement of the door 5 capable of swinging to open and close the opening part of a heating chamber to the switches 3 and 4. The first transmitting means 6 has an oscillating body 61 capable of oscillating due to the engagement with and disengagement from the other side part of the door 5 one side of which is pivoted. The second transmitting means 7 has a moving body 71 capable of sliding due to the engagement with and disengagement from a part near the engaging and disengaging position of the first transmitting means 6 in the other side part of the door 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking device such as a microwave oven for heating an object to be heated at a high frequency.

[0002]

2. Description of the Related Art FIG. 12 is a side view of a front portion of a conventional cooking device. The heating cooker includes a heating cooker main body 100 having a heating chamber in which an object to be heated is accommodated from the front, a high-frequency generator for generating high frequency, and two switches 101 and 102 connected to the high-frequency generator. A swingable door 103 for opening and closing the opening of the heating chamber;
Projection 10 protruding from door 103 when 03 is closed
4, a first transmission lever 105 for operating one of the switches 101, an arm 106 having one end locked to the door 103, and the arm 106 when the door 103 is closed. Move to the other switch 1
02 is provided with an operation button for operating a control unit for controlling cooking heat and an operation unit having an operation button for power supply.

The switches 101 and 102, first and second transmission levers 105 and 107, and an arm 106 are disposed on one side of the heating chamber of the cooking device main body 100. The first transmission lever 105 is pivotally supported midway in the longitudinal direction so as to be vertically longer, the lower end faces the movable piece of the switch 101, and the upper end protrudes from a position far away from the swing center O of the door 103. The protrusion 104
It is possible to contact with. Further, a return spring 108 for returning the first transmission lever 105 is provided between the first transmission lever 105 and the cooking device main body 100.

The second transmission lever 107 and the arm 106
Is supported so as to be relatively movable in the front-rear direction. One end (front end) of the second transmission lever 107 is locked near the pivot O of the door 103, and the other end and one end of the arm 106 are engaged with each other. In addition, engagement pieces 107a and 106a for transmitting the operation of the second transmission lever 107 to the arm 106 are provided. Further, the arm 106 is connected to a second transmission lever 107
And a return spring 109 for returning the arm 106 is provided between the arm 106 and the second transmission lever 107.

[0005] The heating cooker constructed as described above has a door 1
When the door 103 is closed by grasping the handle protruding from the front surface of the door 103, the arm 106 is interlocked with the swing of the door 103.
And the second transmission lever 107 moves, and the door 1
03 is the first transmission lever 1
05, the first transmission lever 105 swings, one switch 101 is turned on by the first transmission lever 105, and the second transmission lever 107 is moved via the arm 106. The other switch 10
2 is turned on, the power supply and the high frequency generator are connected, and the high frequency generator operates by pressing and operating the operation button.

[0006] By opening the door 103,
The first transmission lever 105 swings in the return direction by the return spring 108, and the second transmission lever 107 and the arm 106 move in the return direction.
1 and 102 are turned off, the power supply circuit of the high-frequency generator is cut off, the operation of the high-frequency generator is stopped irrespective of the operation of the operation button, and the high-frequency of the heating chamber does not leak to the outside.

[0007]

However, the conventional heating cooker in which the power supply circuit of the high frequency generator is cut off by turning off the two switches 101 and 102, The contact / separation point for transmitting the opening / closing operation to the first transmission lever 105 is provided on the pivot portion O of the door 103 and the other side, whereas the door opening / closing operation is transmitted to the second transmission lever 107. The transmission point is the pivot O of the door 103
, And the contact point and the transmission point are located at the door 103.
Because it is greatly separated in the direction perpendicular to the pivot O of the
Switch 1 operated by first transmission lever 105
01 turns off when the swing angle of the door 103 is relatively small, and the arm 106 and the second transmission lever 107
Is turned off when the swing angle of the door 103 becomes relatively large. Since the times when the two switches 101 and 102 are turned off are greatly different in this manner, the high frequency generator does not stop immediately when the door 103 is opened, and the high frequency of the heating chamber may leak to the outside. is there.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and a main object of the present invention is to provide a swinging body which can swing by contacting with and separating from one side of a door having one side pivoted. By operating the other switch, a movable body that is movable by contact and separation with a portion near the contact and separation position of the first transmission means on the other side of the door operates the other switch, so that the swing angle of the door can be compared. It is an object of the present invention to provide a heating cooker capable of turning off two switches when the temperature is small.

Another object is to dispose the first transmission means at a position close to the pivot portion of the door, and arrange the second transmission means at a position far from the pivot portion. (2) An object of the present invention is to provide a heating cooker in which the space in the left-right direction and the up-down direction for disposing the transmission means can be made relatively small, and the overall size can be reduced.

Another object of the present invention is to provide a swingable body with a first projection protruding from the front surface of the heating chamber and capable of abutting against the back surface of the door, and a second projection capable of abutting the moving body on the door. Another object of the present invention is to provide a heating cooker that can set the OFF operation points of the two switches with high accuracy without requiring high dimensional accuracy in the contact / separation portion by providing the heat cooker on the other side.

Still another object is to have an insertion hole approximate to the cross-sectional shape of the second projection, into which the second projection is inserted, and a restricting portion for restricting movement of the moving body in the door direction, By providing a stopper capable of moving in a direction intersecting with the moving direction of the moving body, even when the second projection may contact the edge of the insertion hole of the stopper when closing the door, It is an object of the present invention to provide a heating cooker that can smoothly move a switch and can prevent a switch from being inadvertently turned on because a finger cannot be inserted into an insertion hole.

Another object is to increase the cross-sectional area of the second projection of the door from the front side to the back surface of the door, and to provide a cavity whose thickness is to be reduced inside a portion having a large cross-sectional area. An object of the present invention is to provide a heating cooker that can reduce the impact force when the impact force is applied to the two projections.

[0013]

A heating cooker according to the present invention has an opening, a heating chamber for heating an object to be heated at a high frequency, a high frequency generator for generating a high frequency, and the high frequency generator. , Two doors associated with the drive of the heating chamber, a door having one side pivotally connected to open and close the opening of the heating chamber, and a first transmission for operating each switch by opening and closing the door. And a second transmission means, wherein the first transmission means has an oscillating body which can swing by contacting with and separating from the other side of the door, and the second transmission means has a door. And a movable body that can move by contacting and separating with a portion near the contact and separation position of the first transmission means on the other side portion.

According to the present invention, the opening and closing operation of the door is performed by the first operation.
The contact / separation point for transmitting the swinging member of the transmission means to the movable body and the contact / separation point for transmitting the opening / closing operation of the door to the movable body of the second transmission means can be disposed in the vicinity of the pivoted portion of the door. Therefore, when the swing angle of the door is relatively small, the two switches can be turned off, and when the door is opened, the high frequency generator can be stopped immediately, and the high frequency of the heating chamber is externally transmitted. Leakage can be prohibited.

Further, in the cooking device according to the present invention, the first transmission means is disposed at a position near a pivot portion of the door, and the second transmission means is disposed at a position distant from the pivot portion. It is characterized by having been done.

According to the present invention, the second transmission means includes the first transmission means.
Since the first transmission means and the second transmission means are arranged at a position farther than the transmission means, the space in the left-right direction and the vertical direction for disposing the first transmission means and the second transmission means can be made relatively small, and the overall size can be reduced. Can be.

Further, in the heating cooker according to the present invention, the heating chamber has an opening at a front surface, and the oscillating body projects from the front surface of the heating chamber and abuts on the rear surface of the door. It has a possible first protrusion, and the other side of the door has a second protrusion capable of contacting the moving body.

According to the present invention, the contact / separation point at which the first protrusion of the rocking member comes into contact with or separates from the back surface of the door and the contact / separation point at which the second protrusion of the door comes into contact with / separates from the moving body are determined with high dimensional accuracy. Can be made substantially the same without the requirement, so that the OFF operating points of the two switches can be set with high accuracy.

Further, in the cooking device according to the present invention, the cross-sectional shape of the second protrusion is approximated, an insertion hole into which the second protrusion is inserted, and a restriction for restricting movement of the moving body in a door direction. And a stopper capable of moving in a direction intersecting with a moving direction of the moving body.

According to the present invention, when the door is closed, even if the second projection abuts on the edge of the insertion hole of the stopper, the stopper can be moved by the pressing force due to this abutment. The second projection can be smoothly inserted into the insertion hole, and the moving body can be smoothly moved. In addition, because a finger cannot be inserted into the insertion hole,
It is possible to prevent the switch from being inadvertently turned on.

Further, in the cooking device according to the present invention, the second protrusion has a larger cross-sectional area from the front side to the back surface of the door, and the thickness of the second protrusion should be reduced inside the portion having the larger cross-sectional area. It is characterized by having a cavity.

According to the present invention, it is possible to bend the second projection when an impact force is applied to the second projection.
This bending can reduce the impact force.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments. Embodiment 1 FIG. 1 is a front view showing a configuration of a heating cooker according to the present invention, FIG. 2 is a side view, and FIG. 3 is a vertical sectional side view of a main part.

The heating cooker shown in FIGS. 1 and 2 is a microwave oven for heating an object to be heated at a high frequency, and has a heating cooker main body 1 having a heating chamber 1a in which the object to be heated is accommodated from the front thereof.
High frequency generator 2 for generating high frequency, high frequency generator 2
First and second switches 3 and 4 connected to the main body, and both lower portions thereof are pivotally supported by the front side of the heating cooker main body 1 so as to be swingable and open and close the heating chamber 1a. 5 and
A first transmission means 6 and a second transmission means 7 for transmitting the swing of the door 5 to the switches 3 and 4; an operation button 8a for operating a control unit for controlling the cooking heat; And an operation unit 8 having operation buttons 8b.

The heating cooker main body 1 is provided on one side of the heating chamber 1a with an accommodation chamber 1b having a relatively small width in the left-right direction.
Two through-holes 11, 12 penetrating from the upper front surface to the accommodation chamber 1b and vertically separated from each other, and a pair of brackets 1 projecting forward from both lower sides of the heating chamber 1a.
And a holding plate 9 on which the switches 3, 4 and the transmission means 6, 7 are held above the accommodation chamber 1b.
Is installed.

FIG. 4 is an enlarged side view of a main part. The holding plate 9 is made of a substantially rectangular synthetic resin plate that is long in the vertical direction. The first transmission means 6 and the first switch 3 are mounted below the holding plate 9 while being separated in the front-rear direction. , Second on top
The transmission means 7 and the second switch 4 are mounted separately from each other in the front-rear direction, and a monitor switch 20 is mounted below the holding plate 9.

When the door 5 swings to the closed position, the first transmission means 6 swings back and forth in contact with the door 5 to turn on the first switch 3; A return spring 62 for returning the rocking body 61 when the door 5 is opened. The oscillating body 61 includes a pivot 61 a pivotally supported at the center of the holding plate 9 via a pivot 63, and a third projection 51 projecting from the through hole 12 and projecting from the back surface of the door 5. First protrusion 61b that can contact
A contact portion 61c capable of contacting the movable piece 3a of the first switch 3 and a contact portion 61d capable of contacting the movable piece 20a of the monitor switch 20; When the door 5 swings to the open position, the return spring 6
2, the first projection 61b protrudes from the through hole 12 beyond the front surface of the heating chamber 1a, and the contact portion 61c
Are separated from the movable piece 3a, and the contact portion 61d is separated from the movable piece 20a.

When the door 5 swings to the closed position, the second transmission means 7 comes into contact with the door 5 and moves in the front-rear direction to turn on the second switch 4; And a return spring 72 for returning the movable body 71 when the opening operation of the moving member 5 is performed. The moving body 71 has, at one end in the moving direction, a contact portion 71a that can contact the second projection 52 protruding from the back surface of the door 5, and has the movable end of the second switch 4 at the other end. Contact part 71 capable of contacting piece 4a
b, when the door 5 swings to the open position, the contact portion 71 a is stopped at a position facing the through hole 11 by the return spring 72. Further, the moving body 71 is movable along a moving guide body 91 attached above the holding plate 9.

The first and second switches 3 and 4 are connected in the middle of an electric circuit for connecting the high frequency generator 2 to a power source, and the first and second switches 3 and 4 are turned on. Is connected to the high-frequency generator 2, and the connection of the high-frequency generator 2 to the power supply is cut off by turning off the first and second switches 3 and 4.

The door 5 has a pivot shaft 1 on both sides of a lower portion which is one side portion.
The second projection 52 and the third projection 51 are pivotally supported by the brackets 13 and 13 at the positions 0 and 0 on the back surface of the other side part.

FIG. 5 is a circuit diagram of the cooking device. In this circuit diagram, one power supply line 3 connected to the main power supply 30
0a, a fuse 31, a filter coil 32, a first switch 3, and a first terminal of the high frequency generator 2 are connected in series, and the other power supply line 30b is connected to a filter coil 3
3. The first relay contact 34 and the second terminal of the high frequency generator 2 are connected in series.

The first switch 3 is connected to a normally closed contact 3b connected to the main power supply 30 and a first terminal of the high frequency generator 2, and to a primary terminal of a control power supply 35 composed of the main power supply 30 and a step-down transformer. A normally open contact 3c, and the normally closed contact 3b is turned on when the door 5 is closed,
When the door 5 is opening, the normally open contact 3c is on.

A primary terminal of the control power supply 35 is connected to the power supply line 30b, and a control unit 36 using a microprocessor is connected to a secondary terminal of the control power supply 35. The input of the control unit 36 is connected to the second switch 4.
The control unit 36 detects the off state. Further, the first relay contact 34 and a second relay contact 37 described later are turned on / off by a signal output from the control unit 36.

An auxiliary power supply line 39 in which a second relay contact 37 and a capacitor 38 for preventing noise are connected in series is connected between the power supply lines 30a and 30b. Second
The terminal of the relay contact 37 is connected to the normally open contact 3b. The monitor switch 20 is connected between the power supply lines 30a and 30b, and two surge absorbing capacitors 40 and 41 are connected between the power supply lines 30a and 30b and a ground point. The capacitor 42 is connected.

When the door 5 is closed by grasping the handle protruding from the front surface of the door 5 and closing the door 5, the other side of the door 5 is pivotally mounted. A third protrusion 51 protruding from the back surface of the door 5 contacts the first protrusion 61b of the rocking body 61, and a second protrusion protruding from the back surface of the other side of the door 5 to which one side is pivotally mounted. 52 comes into contact with the contact portion 71a of the moving body 71, and the swinging body 61 swings clockwise in FIG. 3 as the door 5 swings, and the moving body 71 moves backward. When the door 5 is operated to the closed position, the rocking body 6
The first contact portion 61c contacts the movable piece 3a of the first switch 3 to turn on the switch 3 (the normally closed contact is turned on), and the contact portion 71b of the moving body 71 switches to the second switch. The switch 4 is turned on by contacting the movable piece 4a of the monitor switch 4, and the monitor switch 20 is turned on by the contact portion 61d contacting the movable piece 20a of the monitor switch 20.

When the door 5 in the closed position is opened in the counterclockwise direction in FIG. 2, the pressing force of the swinging member 61 and the moving member 71 by the second projection 52 and the third projection 51 is reduced, and The moving body 61 is returned by the return spring 62, the moving body 71 is returned by the return spring 72, the switch 3 is turned off (the normally closed contact is off, the normally open contact is on), and the switch 4 and the monitor switch 20 are reset. Each is operated off. When the switch 3 is turned off, the control power supply 35 is switched from the main power supply 30 through the normally open contact 3 c of the switch 3.
Is supplied with power. Thereby, the control unit 36 operates,
According to the signal output from the control unit 36, the second relay contact 3
7 is turned on, and the auxiliary power supply line 39 is connected to the main power supply 30. Then, the door 5 is closed again, the normally closed contact of the first switch 3 is turned on again, and the normally open contact 3c is opened.
The power supply from the main power supply 30 to the control power supply 35 via the control unit 35 is maintained, and the control unit 36 maintains the operation state. Next, when the operation button of the operation unit 8 is pressed, a drive signal is output from the control unit 36, the first relay contact 34 is turned on, and the high frequency generation unit 2 is connected to the high frequency generation unit 2 via the power supply lines 30a and 30b. Electric power is supplied from the main power supply 30, the high frequency generator 2 operates, and high frequency is emitted from the high frequency emission unit to the heating chamber 1a.

When the door 5 is opened in this way, the contact points of the swinging body 61 and the moving body 71 with the door 5 are provided on the other side of the door 5 on which one side is pivotally mounted. Since the distance between the door 5 and the pivot O is relatively long, the swing angle of the door 5 is relatively small, and when the gap between the door 5 and the heating chamber 1a is relatively small, the switches 3, 4 Is turned off, the high frequency generator 2 can be stopped immediately, and the high frequency of the heating chamber 1a can be prevented from leaking to the outside.

Moreover, the moving body 7 of the second transmission means 7
1 is disposed above the oscillating body 61 of the first transmission means 6, so that the space for disposing the transmission means 6, 7 can be made relatively small, and the overall size can be reduced. Can be. When the door 5 is opened while the normally closed contact 3b of the first switch 3 is welded to the terminal and the normally closed contact 3b is not turned off, the fuse 31 is blown. , So that the high-frequency generator 2 does not operate.

Second Embodiment FIG. 6 is a side view of a main part showing a configuration of a second embodiment, FIG. 7 is an enlarged side view of the main part, and FIG. 8 is a side view further enlarging the main part. In the heating cooker according to the second embodiment, instead of providing the third protrusion 51 on the back surface of the door 5, the first protrusion 61 b of the rocking body 61 protrudes from the front surface of the heating chamber 1 a, and It is configured to be able to contact the back surface.

The cross-sectional shape of the second projection 52 between the moving body 71 and the through hole 11 is similar to that of the second projection 5.
2 has an insertion hole 92a into which the moving body 71 is inserted, and a restricting portion 92b for restricting the movement of the moving body 71 in the door direction, in a direction intersecting with the moving direction of the moving body 71, in other words, in the left-right direction. A movable stopper 92 is mounted.

FIG. 9 is a front view of the stopper portion, and FIG. 10 is a perspective view of the stopper. The stopper 92 is formed in a rectangular plate shape, and has the insertion hole 92a and the restriction
2b, and a movement limiting hole 92 is provided on both sides of the insertion hole 92a.
c and 92c are drilled, and both ends are movably held between sandwiching pieces 93 and 93 projecting from the holding plate 9. Further, the insertion hole 92a is curved and widened from the rear edge to the front edge so that the second protrusion 52 can be easily inserted. Further, one of the sandwiching pieces 93 is provided with protrusions 94, 94 which are inserted into the movement limiting holes 92c, 92c and set the amount of movement of the stopper 92.

FIG. 11 is an enlarged sectional view showing the structure of the second projection. The second projection 52 is formed in a rectangular cross-section having a vertical dimension larger than the left and right thickness dimensions, and has a larger cross-sectional area from the front side to the back surface of the door 5.
A substantially V-shaped cavity 52a whose thickness is to be reduced is provided inside the portion having a large cross section, and the outer surface of the portion having a large cross section is a curved concave surface.

In the second embodiment, the oscillator 61
A first contact / separation point at which the first protrusion 61b of the door 5 comes into contact with / separates from the back surface of the door 5 can be made equal to a second contact / separation point at which the second protrusion 52 of the door 5 comes into contact with / separates from the moving body 71. Therefore, it is possible to set the OFF operation points of the two switches 3 and 4 with high accuracy.

Further, in the case where the second projection 52 and the third projection 51 are provided on the door 5, the switches 3, 4
In order to equalize the off-operation times of the second and third projections 52 and 51, high accuracy is required for the height dimension,
Since only the second protrusion 52 is provided on the door 5, dimensional accuracy is not required as compared with the first embodiment, and the processing cost can be reduced.

Since the second projection 52 of the door 5 is in contact with the moving body 71, a stopper 92 is provided which can move in a direction intersecting with the moving direction of the moving body 71.
When the door 5 is closed, even if the second projection 52 comes into contact with the edge of the insertion hole 92a of the stopper 92, the stopper 92 can be slid by the pressing force generated by this contact, and the second projection 52 can be slid. Can be smoothly inserted into the insertion hole 92a, and the moving body 71 can be slid smoothly.
Further, since a finger cannot be inserted into the insertion hole 92a, it is possible to prevent the switch 4 from being turned on carelessly.

Further, the second protrusion 52 has a larger cross-sectional area from the front side to the back surface of the door 5, and has a cavity 52a whose thickness is to be reduced inside a portion having a larger cross-sectional area. When an impact force is applied to the second protrusion 52, the second protrusion 52
The projection 52 can be bent, and the bending can reduce the impact force.

Since other structures and operations are the same as those of the first embodiment, the same parts are denoted by the same reference numerals.
The detailed description and the description of the operation will be omitted. The stopper 92 according to the second embodiment may be provided in the first embodiment, and the second protrusion 52 according to the first embodiment may be provided in the second embodiment.
It may be formed as follows.

[0048]

As described in detail above, according to the present invention, the two switches can be turned off when the swing angle of the door is relatively small, so that when the door is opened, the high-frequency generator is immediately turned on. It can be stopped and can prevent the high frequency of the heating chamber from leaking to the outside.

Further, according to the present invention, since the second transmission means is disposed at a position farther than the first transmission means,
The space in the left-right direction and the up-down direction for disposing the transmission means and the second transmission means can be made relatively small,
The overall size can be reduced.

Further, according to the present invention, the dimensional accuracy is determined by the contact / separation point at which the first protrusion of the swinging body contacts / separates from the back surface of the door and the contact / separation point at which the second protrusion of the door contacts / separates from the moving body. Since they can be made substantially equal without being required, it is possible to set the OFF operating points of the two switches with high accuracy.

Further, according to the present invention, when the door is closed, even if the second projection comes into contact with the edge of the insertion hole of the stopper, the stopper can be slid by the pressing force due to this contact. Since the second protrusion can be smoothly inserted into the insertion hole, the moving body can be smoothly moved, and a finger cannot be inserted into the insertion hole, so that the switch is inadvertently turned on. Can be avoided.

Further, according to the present invention, when an impact force is applied to the second projection, the second projection can be bent, and the impact force can be reduced by this bending.

[Brief description of the drawings]

FIG. 1 is a front view showing a configuration of a cooking device according to the present invention.

FIG. 2 is a side view of the cooking device according to the present invention.

FIG. 3 is a longitudinal sectional side view of a main part of the cooking device according to the present invention.

FIG. 4 is an enlarged side view of a main part of the heating cooker according to the present invention.

FIG. 5 is a circuit diagram of the cooking device according to the present invention.

FIG. 6 is a side view of a main part showing a configuration of a heating cooker according to a second embodiment of the present invention.

FIG. 7 is an enlarged side view of a main part of the heating cooker according to the present invention.

FIG. 8 is a side view in which main parts of the cooking device according to the present invention are further enlarged.

FIG. 9 is a front view of a stopper portion of the heating cooker according to the present invention.

FIG. 10 is a perspective view of a stopper of the heating cooker according to the present invention.

FIG. 11 is an enlarged sectional view showing a structure of a second projection of the cooking device according to the present invention.

FIG. 12 is a side view of a front portion of a conventional heating cooker.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heating cooker main body 1a Heating chamber 2 High frequency generator 3 Switch 4 Switch 5 Door 6 Transmission means 7 Transmission means 52 Second projection 52a Cavity 61 Oscillator 61b First projection 71 Moving body 92 Stopper 92a Insertion hole

Claims (5)

[Claims] A heating chamber having an opening for heating the object to be heated at a high frequency; a high frequency generator for generating a high frequency; two switches related to driving the high frequency generator; A cooking device comprising: a door having one side pivotally connected to open and close the opening; and first and second transmission means for operating each switch by opening and closing the door. In the above, the first transmission means has a swinging body which can swing by contacting and separating with the other side of the door,
The cooking device according to claim 1, wherein the second transmission means has a movable body that can move by contacting and separating with a portion of the other side of the door near a position where the first transmission means contacts and separates. 2. The heating device according to claim 1, wherein the first transmission means is arranged at a position near the pivot portion of the door, and the second transmission means is arranged at a position far from the pivot portion. Cooking device. 3. The heating chamber has an opening at a front surface thereof, and the oscillating body has a first projection projecting from the front surface of the heating chamber and capable of contacting the back surface of the door. The cooking device according to claim 1, wherein the other side of the door has a second protrusion capable of contacting the moving body. 4. The moving body, wherein the moving body has an insertion hole approximate to a cross-sectional shape of the second protrusion and into which the second protrusion is inserted, and a restricting portion for restricting movement of the moving body in a door direction. The cooking device according to any one of claims 1 to 3, further comprising a stopper capable of moving in a direction crossing the moving direction of the cooking device. 5. The second projection has a cross-sectional area increasing from a front side to a back surface of the door, and has a cavity whose thickness is to be reduced inside a portion having a large cross-sectional area. The heating cooker as described.