KR101147856B1 - Door opening structure for cooking device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a door opening structure of a cooking appliance which automatically opens a door through a simple operation to insert food ingredients into a cooking device or to take out cooked food

A door opening structure of a cooking device according to the present invention is a door opening structure of a cooking device in which a door is opened and closed through a side surface of the cooking device in a sliding manner, A moving rail 22 fastened to the door 13 of the cooking apparatus 1 and the food rack 15 and slidably mounted on the stationary rail 21, And a propelling means for separating the moving rail 22 from the stationary rail 21 and starting the moving rail 22 so that the movable rail 22 is opened.

Cooking device, door, opening, magnet, sliding, compression spring, torsion spring, food

Description

[0001] DOOR OPENING STRUCTURE FOR COOKING DEVICE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for opening and closing a door of a cooking device in a sliding manner and more particularly to a cooking device for automatically opening a door through a simple operation for introducing food ingredients into the cooking device, To a door opening structure of a device.

Various kinds of cooking devices such as a toaster, an oven, a microwave oven, etc., require the opening operation of the door in order to insert food ingredients into the cooking cavity and draw out the cooked food.

The door opening method of the cooking appliance is provided in various forms, and one of them is a method of opening the door by a sliding method.

The sliding-type door as described above is pulled by a user like a drawer through a side surface of the cooking appliance to open the door, thereby introducing the food into the inside or taking out the cooked food.

The door opening structure of the slide type is advantageous in that the door is drawn out from the cooking device when the door is opened, and the cooked food is simultaneously drawn out to the outside.

However, according to the conventional door opening structure of the above-described conventional cooking apparatus, it is inconvenient to manually open the door manually. The case of manual operation due to the automation of various daily necessities tends to be reduced. It is inconvenient to manually open the door of the cooking device. When a large number of food items are cooked at the same time, foreign food such as food or water being cooked may be buried in the hands, and it is inconvenient to manually open the door due to the foreign matter.

Further, there is a problem that much force is applied to the opening of the door. In order to open the door, the door is detached from the cooking device, and the door is opened by pulling it. However, there is a problem that a woman, a weak person with a weak muscle strength, a disabled person, a child,

In addition, as soon as the door is released from the cooking device, the door is not opened as the door intended, and the door is separated from the cooking device so that the cooked food can be poured.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a door opening structure of a cooking appliance which can conveniently open a door from a cooking appliance without a user's operation of opening the door directly .

According to another aspect of the present invention, there is provided a door opening structure for a cooking appliance, the door opening / closing structure including a sliding door for opening and closing a door through a side surface of the cooking device, And a driving means for moving the door so that the door is opened, and a driving means for starting the moving rail by separating the moving rail from the fixed rail so as to open the door, wherein the moving rail is slidably mounted on the fixed rail, .

The moving means includes a stationary magnet provided on the frame or the fixed rail and composed of a permanent magnet, a moving magnet provided as a permanent magnet on the moving rail such that the same pole as the stationary magnet is adjacent to each other, And an operating means for allowing the blocking plate to enter and exit between the stationary magnet and the moving magnet. When the blocking plate is positioned between the stationary magnet and the moving magnet, the door is closed And when the blocking plate separates from the stationary magnet and the moving magnet, it is preferable that the moving rail slides from the stationary rail so that a repulsive force acts between the stationary magnet and the moving magnet to open the door Do.

The operating means may include an operating button provided on the frame, an operating rod provided to connect the operating button and the blocking plate, and an elastic member returning the operating button to the home position after operation.

On the other hand, the operating means includes an operating button provided on the frame, a solenoid-type actuator electrically connected to the operating button and the control portion, for moving the blocking plate forward and backward, and an elastic member . ≪ / RTI >

According to an aspect of the present invention, the driving means is a driving spring that is provided in a compressed state in the frame or the fixed rail and pushes the moving rail while being extended in the opening direction of the door, Wherein the locking means includes a hook-shaped first locking member provided on the movable rail, and a second locking member formed in a hook-shaped manner so as to be hooked on the first locking member, And an operating member for releasing the second locking member from the first locking member so that the driving spring can push the moving rail.

According to another aspect of the present invention, the propulsion means includes a torsion roller and a rotary roller rotatably provided on a frame or a fixed rail side and disposed to be spaced apart from each other, An interlocking block which is respectively fastened to the wire and the moving rail so that the wire and the moving rail are interlocked with each other; and one end fixed to the torsion roller and the other end fixed to the frame or the fixed rail, Wherein the locking means is a torsion spring that resiliently supports the movable rail in a direction in which the movable rail is opened, and further includes locking means for maintaining the movable rail in the interior of the cooking apparatus, A second locking member formed in a hook shape so as to be caught by the first locking member, And an operating member for releasing the second locking member from the first locking member so that the driving spring can push the moving rail.

Here, the fixed rail and the movable rail are inclined so that the side of the door side is lower than the horizontal plane so that the movable rail is slid by its own weight when the movable rail starts to move from the fixed rail by the propelling means.

It is preferable that the cooking apparatus is made of a transparent material that has a housing and a planar heating element that forms a heating space inside the housing.

According to the door opening structure of the cooking apparatus according to the present invention, when the user presses the operation button, the door of the cooking apparatus can be automatically opened without any additional power.

As described above, since the door is automatically opened, a woman, a disabled person, a child or the like having a weak disposition can conveniently open the door of the cooking appliance and the inconvenience of having to take a lot of force when opening the door disappears.

Further, when the cooking is completed, the food is automatically discharged to the outside, so that excessive cooking of the food can be prevented.

Hereinafter, a door opening structure of a cooking apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

2 and 3, the door opening structure of the cooking apparatus according to the present invention includes a fixed rail 21 fixed to the frame 11 of the cooking apparatus 1, A movable rail 22 slidably mounted on the door 13 and the food rack 15 and slidably mounted on the fixed rail 21; And a driving means for separating the moving rail 22 from the fixed rail 21 and starting the moving rail 22.

FIG. 1 shows an example in which the door opening structure of the cooking apparatus according to the present invention is applied to a toaster, which is one of the cooking apparatuses.

1, a toaster, which is one of the cooking utensils 1, includes a housing 12 that forms an internal space in a frame 11, and a sidewall having a heating element inside the housing 12 A door 13 is provided at one side of the housing 12 to allow the bread to slide in and out and a door 13 is integrally fastened to the door 13 so that the inside of the heating space 14 And is provided with a food tip 15 to which food is loaded. The heating body is coated with a semiconductor element or made to be a surface heating element made of a heating film.

In particular, it is preferable that the door opening structure of the cooking device according to the present invention is applied to a so-called transparent toaster, in which the housing 12 and the surface heating element are made of a transparent material so that the degree of cooking can be visually observed.

The stationary rail 21 is provided inside the cooking device 1. A pair of fixed rails 21 are provided in the frame 11 of the cooking apparatus 1 along the opening direction of the door 13.

The movable rail (22) is slidably provided on the fixed rail (21). The movable rail 22 is moved in conjunction with the door 13 and the food stop 15 by being fastened to the door 13 slidingly opened and closed on the cooking apparatus 1 and is slidable Respectively. The movable rails 22 are slidably provided on the fixed rail 21 so that the door 13 and the food rack 15 are opened in a sliding manner with respect to the frame 11, The slide movement of the door 13 and the sliding movement of the food end tooth 15 corresponds to the sliding movement of the door.

If the door 13 is engaged with the fixed rail 21 and the movable rail 22 so that the movable rail 22 can slide in a direction separating from the fixed rail 21 due to its own weight, The movable rail 21 and the fixed rail 21 are inclined. That is, as shown in FIG. 2, the fixed rail 21 and the movable rail 22 are provided so as to be inclined so that the side of the door 13 indicated by "b" is lower than the inside indicated by "a" The movable rails 22 can be slid in a direction in which the movable rails 22 are discharged without any additional power.

4, a plurality of rollers 23 are provided between the stationary rail 21 and the movable rail 22 in a plurality of ways so as to smoothly slide the movable rail 22. [ . The movable rail 22 is slid with respect to the fixed rail 21 through the roller 23 without the roller 23 directly contacting the fixed rail 21 and the movable rail 22, And the moving rail 22 can smoothly slide on the fixed rail 21 through the rolling contact.

Reference numeral 23a denotes a roller guide for determining and holding the position of the roller 23. [

In the present invention, the propelling means is configured to move the movable rail 22 in the direction in which the door 13 is opened from the fixed rail 21, that is, from the upper left to the lower right in Fig. 2, So that the movable rail 22 starts to move.

As a specific example of the above-mentioned propelling means, as shown in Figs. 2 and 3, when the same poles are disposed adjacent to each other, a magnet having repulsive force acting thereon can be used.

The propelling means includes a fixed magnet 31 fixed to the fixed rail 21 side, a moving magnet 32 fixed to the movable rail 22 side so that the same pole faces the fixed magnet 31, An operation button 41 for allowing the interrupting plate 33 to move between the stationary magnet 31 and the moving magnet 32 and a stopper plate 33 to be inserted and removed between the magnet 31 and the moving magnet 32, And an operating rod 42 connecting the operating button 41 and the blocking plate 33.

The stationary magnet 31 is provided as a permanent magnet fixed to one side of the cooking appliance 1, that is, one side of the frame 11 or one side of the stationary rail 21.

The moving magnet 32 is provided at one side of the moving rail 22 as a permanent magnet, and the same poles as the stationary magnet 31 are provided adjacent to each other. The stationary magnet 31 and the moving magnet 32 are provided so that the same pole faces the stationary rail 21 and the moving rail 22, So that the movable rail 22 fastened to the door 13 is slid using the repulsive force.

That is, a barrier plate 33 made of steel or iron is inserted between the stationary magnet 31 and the moving magnet 32 so that the barrier plate 33 is fixed to the stationary magnet 31 The movable magnet 32 is brought into close contact with the blocking plate 33 so that the housing 12 is closed and the movable magnet 32 is moved to the closed position, And when the blocking plate 33 is displaced between the stationary magnet 31 and the moving magnet 32, a repulsive force acts between the stationary magnet 31 and the moving magnet 32, (22) is slid.

5, when the stationary magnet 31 and the moving magnet 32 are disposed such that the same poles face each other and the interrupting plate 33 made of steel or iron is positioned between the stationary magnet 31 and the moving magnet 32, A repulsive force acts between the magnet 31 and the moving magnet 32 but a force acts between the moving magnet 32 and the blocking plate 33 and the distance between the blocking plates 33 is set to be larger than the repulsive force The movable magnet 32 is maintained in a state in which it is not pushed against the stationary magnet 31.

6, when the blocking plate 33 positioned between the stationary magnet 31 and the moving magnet 32 is released between the stationary magnet 31 and the moving magnet 32, the stationary magnet 31, The moving magnet 32 is pushed out of the stationary rail 21 and the stationary magnet 31 fixed to the frame 11 and the opening operation of the door 13 is started Push the movable rail 22 as far as it will go.

An operating means is provided to allow the blocking plate 33 to enter and exit between the stationary magnet 31 and the moving magnet 32.

2 and 3, there are provided an operation button 41 exposed on the outside of the cooking apparatus 1, and an operation button 41 provided on the operation button 41 and the cutoff plate 33 And an elastic member 43 for elastically supporting the operation button 41 so that the operating rod 41 can return to the home position after the operation button 41 is operated.

The operation buttons 41 are provided on the outside of the cooking appliance 1. When the user desires to open the door 13, the operation button 41 causes the door 13 to be opened by pressing the operation button 41.

The operation rod 42 connects the operation button 41 and the cutoff plate 33 so that the operation force applied to the operation button 41 is transmitted to the cutoff plate 33 so that the cutoff plate 33 contacts the fixed magnet 31 ) And the moving magnet (32).

The elastic member (43) allows the operation button (41) to return to the home position after the operation. For example, the elastic member 43 is in the form of a compression coil spring and exerts an elastic force so as to return the operated operation button 41 to the home position for the operation.

The operation of the door opening structure of the cooking apparatus according to the present invention having the above-described structure will be described with reference to the accompanying drawings.

1, for example, in order to put the white bread, which is a food material, into the transparent toaster or to take out the baked bread to the outside, the user operates the operation button 41, To operate.

The blocking plate 33 is positioned between the stationary magnet 31 and the moving magnet 32 until the user presses the operation button 41. The stationary magnet 31 and the moving magnet 32, Since the attracting force between the interrupting plate 33 and the moving magnet 32 is greater than the repulsive force acting between the moving rail 32 and the moving plate 32, Is located on the inner side of the fixed rail (21).

This state is a state in which the cooking apparatus 1 is closed by the door 13 and is in a normal state or a state in which food is being cooked inside.

On the other hand, when the user operates the operation button 41 to insert food ingredients into the cooking device 1 or to take out the cooked food, the door 13 is opened.

When the operation button 41 is pressed, the blocking plate 33 connected to the operation button 41 is moved outwardly between the stationary magnet 31 and the moving magnet 32, so that the stationary magnet 31 The moving rail 22 provided with the moving magnet 32 starts to slide because only a repulsive force is applied between the moving magnet 32 and the stationary magnet 31 to push the moving magnet 32 out.

Since the fixed rail 21 and the movable rail 22 are inclined so that the door 13 is lowered, when the movable rail 22 begins to slide, the remaining sections are separated from the door 13, It can be opened without any additional power by its own weight.

On the other hand, the operating means can operate the blocking plate 33 by using a solenoid or an actuator 44 of the electric magnet type. 7, the operation button 41 exposed to the outside of the cooking appliance 1 and the shielding plate 33 are fixed by a solenoid method between the stationary magnet 31 and the moving magnet 32 And an elastic member 43 that exerts an elastic force so that the operation button 41 returns to the home position after the operation.

The operation button 41 is provided in the cooking apparatus 1 so that the operation button 41 is exposed to the outside of the cooking apparatus 1 and can be operated by the user.

When the actuator 44 is operated, the actuator 44 is disconnected from the fixed magnet 31 and the moving magnet 32 when the actuator 44 is connected to the blocking plate 33. The actuator 44 is of a solenoid type. When the power is supplied, the actuator 44 pushes the blocking plate 33 to be separated from the fixed magnet 31 and the moving magnet 32. The actuator 44 is electrically connected to the operation button 41 and the control unit 45. When the operation button 41 is pressed, the control unit 45 supplies power to the actuator 44 and operates.

The elastic member 43 is preferably composed of a compression coil spring which exerts an elastic force to support the operation button 41 outward so that the pressed operation button 41 can be returned to the original position.

As described above, when the actuator 44 of the solenoid type is used, the door 13 can be automatically opened when the cooking of the food is completed. That is, when the control unit 45 detects that the cooking of the food is completed, the actuator 44 is operated to open the door 13, so that the food is not over cooked.

8 and 9, another embodiment of the door opening structure of the cooking apparatus according to the present invention will be described.

The door opening structure of the cooking apparatus according to the second embodiment of the present invention is a propelling means for sliding the movable rail 22 with respect to the fixed rail 21 and a compression spring is applied, and the movable rail 22 is selectively opened And a locking means for restricting the movable rail 22 to the frame 11 or the fixed rail 21 so that the movable rail 22 can be moved.

In the second embodiment of the present invention, the propulsion means includes a driving spring (not shown) provided in a compressed state such that one end thereof is provided at one end of the frame 11 or the fixed rail 21 and the other end thereof is extended toward the opening direction of the door 13, (131).

The drive springs 131 provided in the form of compression springs are extended and start from the fixed rail 21 so that the movable rails 22 are opened.

It is preferable that a casing 132 is provided for preventing the driving spring 131 from buckling and protecting the driving spring 131 when the driving spring 131 is expanded or contracted.

A disk 133 is provided at the tip of the drive spring 131 so that the tip of the drive spring 131 contacts the disk 133. In order to smoothly contact the drive rail 131 with the movable rail 22, And an interlocking rod 134 for transmitting the elastic force of the driving spring 131 to the moving rail 22.

The locking means always restricts the action of the driving spring 131 provided to push the movable rail 22 so that the movable rail 22 is positioned inside the cooking apparatus 1. [

The locking means includes a first locking member 141 formed in the shape of a hook and provided on the moving rail 22 and a second locking member 142 formed in a hook shape to be hooked on the first locking member 141, And an operating member 143 for releasing the second locking member 142 from the first locking member 141 so that the driving spring 131 can push the moving rail 22.

The first locking member 141 is formed in the form of a hook and is provided on the side of the movable rail 22.

The second locking member 142 is also formed in the same shape as the second locking member 142 so as to selectively engage with the first locking member 141.

The first locking member 141 and the second locking member 142 are sloped or curved so that the moving rail 22 is pushed into the inside of the stationary rail 21 So that the first locking member 141 is easily engaged with the second locking member 142. [

The operating member 143 releases the first locking member 141 by the second locking member 142 so that the driving spring 131 pushes the moving rail 22 so that the door 13 can be opened. As shown in FIG. 8, the operation member 143 may include an operation button connected to the second lock member 142 and an elastic member 144 elastically supporting the operation button 143 . The second locking member 142 and the first locking member 141 are released so that the driving spring 131 pushes the moving rail 22 to start the door 13 to be opened, The door 13 is opened while the movable rail 22 slantingly slides by its own weight.

Meanwhile, the operating member 143 may be an actuator operating in a solenoid-type manner.

The door opening structure of the cooking apparatus according to the third embodiment of the present invention will be described with reference to FIGS. 10 and 11. FIG.

According to the door opening structure of the cooking apparatus according to the third embodiment of the present invention, the torsion spring 253 is applied as the propelling means so that the door 13 is opened using the elastic energy stored in the torsion spring 235 And locking means for restricting the movable rail 22 to the frame 11 or the fixed rail 21 so that the movable rail 22 can be selectively opened.

10 and 11, the propelling means includes a torsion roller 231 and a rotary roller 232, which are rotatably provided on the side of the frame 11 or the fixed rail 21 and are spaced apart from each other, A wire 233 wound around the torsion roller 231 to circulate the rotating roller 232 at the torsion roller 231 and the wire 233 wound around the torsion roller 231 and the moving rail 22, And the other end of which is fixed to the frame 11 or the fixed rail 21 so that the door 13 is fixed to the frame 11 or the fixed rail 21, And a torsion spring 235 for elastically supporting the movable rail 22 in the opening direction.

The torsion roller 231 is rotatably provided on the frame or the fixed rail 21 side. When the wire 233 is loosened from one side of the torsion roller 231, it is preferable that two grooves are formed so that the wire 233 is wound on the other side.

The rotation roller 232 is disposed so as to be spaced apart from the torsion roller 231. The torsion roller 231 is adjacent to the door 13, and the rotation roller 232 is disposed on the opposite side.

The wire 233 is provided to circulate the torsion roller 231 and the rotating roller 232. One end of the wire 233 is wound around one groove of the torsion roller 231 and the other end of the wire 233 is wound around another groove of the torsion roller 231 through the rotating roller 232.

The interlocking block 234 interlocks the movement of the wire 233 with the movable rail 22 so that the door 13 is opened by the rotation of the torsion spring 235. To this end, the interlocking block 234 is fixed to the wire 233 at one side and is fixed to the moving rail 22 side at the other side, so that the interlocking block 234 is connected to the wire 233 wound or unwound when the torsion spring 235 is rotated Respectively.

One end of the torsion spring 235 is fixed to the frame 11 or the fixed rail 21 and the other end is connected to the torsion roller 231 so that elastic energy is stored in the torsion roller 231 , And the torsion roller 231 is rotated by the stored elastic energy. The torsion spring 235 is provided with a torsion roller 231 wound around a rotary shaft and elastically supports the torsion roller 231 so that the torsion roller 231 rotates in a direction to open the door 13. [ 10, the torsion spring 235 supports the torsion roller 231 to rotate clockwise, and when the torsion spring 235 rotates counterclockwise by applying an external force, the torsion spring 235 And when the external force is released, the torsion spring 235 causes the torsion roller 231 to rotate clockwise.

In the door opening structure of the cooking apparatus according to the third embodiment of the present invention, a locking means is provided for keeping the movable rail 22 inserted, and the structure thereof is the same as that of the second embodiment Therefore, detailed description will be omitted.

The door opening structure of the cooking apparatus according to the third embodiment of the present invention opens the door by operating the locking means.

When the operating member 243 is pushed, the second lock member 142 is released and the movable rail 22 is in a state in which the restraint is released.

When the restraint of the movable rail 22 is released, the torsion spring 235 rotates the torsion roller 231 in the clockwise direction. When the torsion roller 231 rotates, the wire wound around the upper portion of the torsion roller 231 moves the wire 233 wound around the rotating roller 232 and the torsion roller 231 in the direction of the arrow in Fig. And the wire wound around the lower portion of the torsion roller 231 is unwound from the torsion roller 231. [ When the moving rail 22 connected to the torsion roller 231 and the rotating roller 232 moves in the direction of the arrow as described above, the door of the cooking apparatus 1 Is opened.

On the other hand, when the door 13 is manually closed, the wire 233 rotates the torsion roller 231 in the counterclockwise direction when the wire 233 moves in the direction opposite to the arrow shown in Fig. When the torsion roller 231 rotates counterclockwise, the torsion spring 235 is twisted and elastic energy is stored therein. That is, when the first locking member 241 provided at the front end of the movable rail 22 abuts against the second locking member 242, the first locking member 241 and the second locking member 242 are engaged with each other The door 13 is closed and elastic energy for opening the door 13 is stored in the torsion spring 235 when the locking members 241 and 242 are released from the restraint.

1 is a perspective view of a toaster to which a door opening structure of a cooking appliance according to an embodiment of the present invention is applied.

2 is a perspective view of a door opening structure of a cooking device according to an embodiment of the present invention;

FIG. 3 is a perspective view of a door when the door is opened in a door opening structure of a cooking device according to an embodiment of the present invention; FIG.

4 is a cross-sectional view taken along a line I-I in Fig.

5 and 6 are schematic views illustrating the operation principle of the door opening structure of the cooking apparatus according to the embodiment of the present invention.

7 is a perspective view showing an example in which a solenoid type actuator is applied as an operating means in a door opening structure of a cooking device according to an embodiment of the present invention.

FIG. 8 is a perspective view of a door opening structure of a cooking device according to a second embodiment of the present invention; FIG.

FIG. 9 is a perspective view of the door opening structure of the cooking apparatus according to the second embodiment of the present invention when the door starts to open; FIG.

10 is a perspective view of a door opening structure of a cooking apparatus according to a third embodiment of the present invention.

11 is a perspective view of the door opening structure of the cooking apparatus according to the third embodiment of the present invention when the door starts to open.

Description of the Related Art [0002]

1: cooking device 11: frame

12: housing 13: door

14: Heating space 15:

21: fixed rail 22: movable rail

23: roller 23a: roller guide

31: stationary magnet 32: moving magnet

33: cutoff plate 41: operation button

42: operating lever 43: elastic member

44: Actuator 45:

131: drive spring 132: casing

133: Disk 134: Interlocking rod

141: first locking member 142: second locking member

143: operating member 144: elastic member

231: Torsion roller 232: Rotary roller

233: Wire 234: Interlocking block

235: Torsion spring 241: First locking member

242: second locking member 243: operating member

244: elastic member

Claims (8)

In a door opening structure of a cooking appliance in which a door is opened and closed through a side surface of the cooking device in a sliding manner, A fixed rail 21 fixed to the frame 11 of the cooking apparatus 1 and a fixed rail 21 fixed to the door 13 and the food rack 15 of the cooking apparatus 1, And a driving means for separating and moving the movable rail from the fixed rail so as to open the door, The propulsion means comprises: A fixed magnet 31 provided on the frame 11 or the fixed rail 21 and made of a permanent magnet and a permanent magnet 31 provided on the movable rail 22 as a permanent magnet so that poles such as the fixed magnet 31 are adjacent to each other A shielding plate 33 provided so as to be able to move in and out between the stationary magnet 31 and the moving magnet 32 and a shielding plate 33 which is provided between the stationary magnet 31 and the moving magnet 32 And an operating means for allowing the user to enter and exit the apparatus, When the blocking plate 33 is positioned between the stationary magnet 31 and the moving magnet 32 by the operating means, the blocking plate 33 is urged by the urging force between the stationary magnet 31 and the moving magnet 32 The door 13 is kept closed and the blocking plate 33 is removed from between the stationary magnet 31 and the moving magnet 32 by the operating means so that the stationary magnet 31 And the moving rail (22) is slid in the door opening direction from the fixed rail (21) by a repulsive force acting between the moving rail (21) and the moving magnet (32). delete The method according to claim 1 , Wherein, An operation button 41 provided on the frame 11, An operation rod 42 connected to the operation button 41 and the blocking plate 33, And an elastic member (43) for returning the operating button (41) to its home position after operation. The method according to claim 1 , Wherein, An operation button 41 provided on the frame 11, A solenoid type actuator 44 which is electrically connected to the operation button 41 and the control unit 45 and moves the blocking plate 33 forward and backward, And an elastic member (43) for returning the operating button (41) to its home position after operation. delete delete The method according to claim 1, When the movable rail 22 starts to move from the fixed rail 21 by the propelling means, the fixed rail 21 and the movable rail 22 are slid by their own weights on the side of the door 13 on the horizontal plane Wherein the door is opened and closed in a state that the door is closed. The method according to claim 1, The cooking appliance, Wherein the surface heating element for forming the heating space (14) in the housing (12) and the housing (12) is made of a transparent material.

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