JP7316975B2 - heating cooker - Google Patents

Description

The technology disclosed in this specification relates to a cooking device.

Patent Document 1 discloses a heating cooker in which a door is pulled out from the front surface of the main body to open the opening of the main body and the opening of the heating chamber. In the heating cooker of Patent Document 1, the door of the main body also serves as the lid of the heating chamber.

JP-A-2006-38296

If the door of the main body does not fit perfectly with the edge of the opening of the main body, it looks bad. If the opening of the heating chamber is not properly sealed, the heating efficiency will decrease. In the heating cooker of Patent Document 1, if the relative positions of the main body and the heating chamber are displaced, either the opening of the main body or the opening of the heating chamber does not fit perfectly with the door. If the opening of the heating chamber is offset forward, the door will properly close the opening of the heating chamber, but the door will protrude from the main body. If the opening of the heating chamber is shifted rearward, the door closes the opening of the main body properly, but there is a gap between it and the opening of the heating chamber. This specification relates to a heating cooker having a door on the front and a heating chamber inside, and provides a technique capable of appropriately closing both the opening of the main body and the opening of the heating chamber.

A heating cooker disclosed in this specification includes a main body, a heating chamber, a first door, and a second door. The body has a first opening on the front side and the heating chamber has a second opening on the front side. The heating chamber is positioned within the body such that the second opening is located inside the first opening. The first door is supported by the main body so as to be movable in the front-rear direction, and can close the first opening at the rear end position of the movable range. The second door is positioned behind the first door and supported by the main body so as to be movable in the front-rear direction. A second door closes the second opening. The second door is relatively movable in the front-rear direction with respect to the first door.

The heating cooker disclosed in this specification includes a second door that closes the opening (second opening) of the heating chamber, in addition to the first door that closes the opening (first opening) of the main body. Since the second door is movable in the front-rear direction with respect to the first door, the first door can appropriately close the first opening, and the second door can appropriately close the second opening.

The second door may be vertically or horizontally movable relative to the first door. The first door can properly close the first opening and the second door can properly close the second opening in the vertical direction or the horizontal direction as well.

The heating cooker disclosed in this specification may include a retraction mechanism that retracts the second door to a position that closes the second opening. When the first door is closed, the second door disappears. The user cannot confirm whether the second door is completely closed. By providing the retraction mechanism, it is possible to prevent the second door from being in a half-open state.

The retraction mechanism retracts the second door to a position for closing the second opening when the distance between the second door and the second opening is reduced to a predetermined distance or less. An example of a retraction mechanism is as follows. The main body has a fixed rail extending in the front-rear direction, and the second door has a movable rail that slides along the fixed rail. At the rear end of the fixed rail, the rail upper surface and the rail rear surface are connected by a curved surface. At the rear end of the movable rail, a lever is provided that extends rearward and whose tip rotates toward the fixed rail when viewed from the side, and the lever is urged to press the tip against the fixed rail. . The tip of the lever is in contact with the upper surface of the fixed rail. When the tip of the lever reaches the curved surface of the fixed rail, the biasing force swings the lever along the curved surface and pulls the base of the lever rearward. That is, the door is retracted rearward.

The heat cooking apparatus disclosed in this specification includes a retraction mechanism that retracts the first door to the rear end position, and biasing means that biases the second door toward the heating chamber when the first door is positioned at the rear end position. may be provided. Such a structure can also prevent the second door from being in a half-open state.

It is preferable that the second door is detachable. A second door facing the interior space of the heating chamber can be cleaned.

Details and further improvements of the technique disclosed in this specification are described in the following "Mode for Carrying Out the Invention".

It is a perspective view of the heating cooker of an Example. FIG. 2A is a side view of the heating cooker with the outer door and the inner door opened. FIG. 2B is a side view of the heating cooker with the outer door and the inner door closed. FIG. 4 is a side view of the retraction mechanism;

A heating cooker 2 of an embodiment will be described with reference to the drawings. In FIG. 1, the perspective view of the heating cooker 2 is shown. The heating cooker 2 includes a cabinet 10 in which the stove unit 3 is incorporated in the upper part, a heating chamber 30 arranged inside the cabinet 10, an outer door 20 that closes the opening (outer opening 11) of the cabinet 10, An inner door 40 for closing the opening (inner opening 31) of the heating chamber 30 is provided.

The stove unit 3 has three stove burners on the top and a grill storage inside.

An opening (outer opening 11 ) of the cabinet 10 is provided on the front surface of the cabinet 10 . The outer opening 11 is closed by an outer door 20. - 特許庁The outer door 20 has a movable rail 21 on its side and slides back and forth with respect to a fixed rail (not shown) provided inside the cabinet 10 . The outer door 20 closes the outer opening 11 when the outer door 20 is positioned at the rear end position of the forward and backward movement range. In other words, the rear end position of the outer door 20 means the position where the outer door 20 closes the outer opening 11 .

A heating chamber 30 is arranged inside the cabinet 10 . The opening (inner opening 31) of the heating chamber 30 also faces forward. In other words, the inner opening 31 is positioned inside the outer opening 11 . The inner opening 31 is closed with an inner door 40 . The inner door 40 also has movable rails 41 on the sides thereof, and slides forward and backward on fixed rails 42 provided on the side surfaces of the heating chamber 30 . The inner door 40 closes the inner opening 31 when the inner door 40 is positioned at the rear end position of the forward and backward movement range. In other words, the rear end position of the inner door 40 means the position where the inner door 40 closes the inner opening 31 .

An inner floor plate 44 is attached to the inner door 40 . The inner floor plate 44 moves forward and backward together with the inner door 40 . The inner floor plate 44 moves back and forth over the bottom of the heating chamber 30 .

Heating chamber 30 is a microwave oven, equipped with a magnetron, etc., but for the sake of simplification, heating chamber 30 is represented by a simple box in FIG. 1 (and subsequent figures). The outer door 20 is pulled out from the cabinet 10, the inner door 40 is further pulled out, and food is placed on the inner floor plate 44. - 特許庁The inner door 40 is closed and the outer door 20 is closed. When the user operates a switch (not shown), heating of the food in the heating chamber 30 is started.

FIG. 2A shows a side view of the heating cooker 2 with the outer door 20 and the inner door 40 opened. FIG. 2B is a side view of the heating cooker 2 with the outer door 20 and the inner door 40 closed. In FIG. 2, illustration of the stove unit 3 (see FIG. 1) arranged on the top of the cabinet 10 is omitted. The handle of the outer door 20 and the handle of the inner door 40 are also omitted from the drawing.

A sealing material 13 is arranged on the front surface of the side wall of the cabinet 10 surrounding the outer opening 11 (the surface surrounding the outer opening 11). The sealing material 13 makes a circuit so as to surround the outer opening 11 . When the outer door 20 is closed, the side wall of the cabinet 10 and the outer door 20 sandwich the sealing material 13 to seal the internal space of the cabinet 10 . The sealing material 13 may be attached to the outer door 20 .

A sealing material 33 is arranged on the front surface of the side wall of the heating chamber 30 surrounding the inner opening 31 (the surface surrounding the inner opening 31). The sealing material 33 makes a circuit so as to surround the inner opening 31 . When the inner door 40 is closed, the side wall of the heating chamber 30 and the inner door 40 sandwich the sealing material 33 to seal the inner space of the heating chamber 30 . The sealing material 33 may be attached to the inner door 40 .

The inner door 40 moves back and forth independently of the outer door 20. - 特許庁Further, as shown in FIG. 2B, a distance dL is secured between the inner door 40 and the outer door 20 when the inner door 40 and the outer door 20 are closed. The inner door 40 and the outer door 20 can properly close the outer opening 11 and the inner door 40 can properly close the inner opening 31 without interfering with each other.

A floor plate 24 of the outer door 20 is provided with a stopper 25 . The stopper 25 is arranged so as to interfere with the lower portion of the inner door 40 in the front-rear direction. When the outer door 20 is pulled out from the closed state of the outer door 20 and the inner door 40, the lower part of the inner door 40 is caught by the stopper 25, and the inner door 40 is pulled out together with the outer door 20.例文帳に追加

A spring 23 is provided inside the outer door 20 . The spring 23 pushes the inner door 40 backward. The inner door 40 is sandwiched between the spring 23 and the stopper 25 and locked to the outer door 20 .

When the outer door 20 is closed, the spring 23 presses the inner door 40 against the heating chamber 30. - 特許庁The spring 23 ensures that the inner door 40 seals the inner opening 31 of the heating chamber 30 when the outer door 20 is closed. Note that illustration of the stopper 25 is omitted in FIG. 2(B).

A gap is provided between the movable rail 41 of the inner door 40 and a fixed rail (not shown) in the left-right direction. Since a gap is secured between the movable rail 41 and the fixed rail in the left-right direction, the inner door 40 can also move in the left-right direction independently with respect to the heating chamber 30 and the outer door 20 . The position of the inner door 40 can be adjusted with respect to the opening (inner opening 31 ) of the heating chamber 30 in the horizontal and vertical directions regardless of the state of the outer door 20 .

Although not shown in FIGS. 1 and 2, the outer door 20 has a retraction mechanism. The retraction mechanism is a mechanism that automatically retracts the outer door 20 to the rear end position when the outer door 20 is pushed to a predetermined position. FIG. 3 shows a side view of the retraction mechanism 60. As shown in FIG.

As shown in FIG. 1, a movable rail 21 is provided on the side surface of the outer door 20. As shown in FIG. A fixed rail 61 is provided on the cabinet 10 (not shown in FIG. 3) so as to be positioned below the movable rail 21 . As the movable rail 21 slides on the fixed rail 61 , the outer door 20 can smoothly move in the front-rear direction with respect to the cabinet 10 .

Although the cabinet 10 is not shown in FIG. 3, the cabinet 10 is provided with a stopper 66 that regulates the rear end position of the movable rail 21 (that is, the outer door 20). The stopper 66 is positioned behind the movable rail 21 . The position of the movable rail 21 (the position of the outer door 20) when the rear end of the movable rail 21 contacts the stopper 66 corresponds to the rear end position of the movable rail 21 (the outer door 20).

A curved surface 62 connects the upper surface and the rear surface of the fixed rail 61 . The curved surface 62 starts a distance dL forward from the rear end position (the position of the stopper 66).

A lever 63 is attached to the rear end of the movable rail 21 . The lever 63 is supported by the movable rail 21 so that the tip 63a (the tip on the rear side of the lever 63) swings vertically. The tip 63 a of the lever 63 swings up and down around a rotation shaft 64 at the rear end of the movable rail 21 . A spring 65 is attached to the rear end of the movable rail 21 to bias the lever 63 so that the tip 63a of the lever 63 is lowered. In other words, the lever 63 is swingably attached to the movable rail 21 so that the tip 63a moves toward the fixed rail 61 side.

FIG. 3(A) shows a state where the tip 63a of the lever 63 is located ahead of the rear end position by a distance dL. In other words, the tip 63 a of the lever 63 is located forward of the curved surface 62 . In this state, the outer door 20 does not move unless the user pushes the outer door 20 .

FIG. 3B shows a state in which the tip 63a of the lever 63 is closer to the rear end position than the distance dL. In other words, FIG. 3B shows a state where the tip 63a of the lever 63 has reached the curved surface 62. As shown in FIG. The lever 63 is biased by a spring 65 so as to lower the tip 63a. This biasing force swings the lever 63 so that the tip 63a is lowered as indicated by the arrow a in FIG. 3(B), thereby pulling the movable rail 21 (outer door 20) rearward.

FIG. 3(C) shows a state in which the lever 63 has further swung downward as indicated by the arrow b, and the rear end of the movable rail 21 has come into contact with the stopper 66 . FIG. 3(C) corresponds to a state in which the outer door 20 is positioned at the rear end position. By the biasing force of the spring 65, the outer door 20 is retracted to the rear end position and held in the retracted state.

By providing the retraction mechanism 60, the outer door 20 is reliably held at the rear end position. That is, the outer door 20 reliably closes the outer opening 11 . As mentioned above, the outer door 20 is provided with a spring 23 that pushes the inner door 40 rearward. When the outer door 20 is positioned to close the outer opening by the retracting mechanism 60, the spring 23 presses the inner door 40 against the heating chamber 30, and the inner opening 31 is sealed. The retraction mechanism 60 and the spring 23 automatically cause the outer door 20 to tightly seal the outer opening 11 and the inner door 40 to tightly seal the inner opening 31 . The inner door 40 may be provided with the retraction mechanism 60 of FIG.

Note that the position where the stopper 66 is provided is not limited to the rear of the movable rail 22 . The door 21 of the drawer 20 abuts against the side wall around the opening 11 of the cabinet 10 and does not retract further when the opening 11 is closed. That is, the sidewalls around the opening 11 play the role of the stopper 66 . Although the stopper 66 is drawn in FIG. 3 to aid understanding, the side wall around the opening 11 serves as a stopper, so the stopper 66 behind the movable rail 22 may be omitted.

Points to note regarding the technology described in the embodiment will be described. In the heating cooker 2 of the embodiment, the outer door 20 has the retraction mechanism 60, but the inner door 40 may include the retraction mechanism. Each of the outer door 20 and the inner door 40 may have a retraction mechanism 60 .

It is desirable that the inner door 40 be movable in the vertical and horizontal directions relative to the heating chamber 30 . If the inner door 40 can move relative to the heating chamber 30 in the vertical direction or the horizontal direction, the inner opening 31 can be properly sealed at least in the movable direction.

The inner door 40 is desirably removable from the heating chamber 30 .

The heating chamber 30 may be a microwave oven, a cooker equipped with an electric or gas heater, or a grill. The cabinet 10 may be for a system kitchen, a desktop type, or a wall-mounted type.

The cabinet 10 of the embodiment corresponds to an example of the main body of the heating cooker 2, the outer door 20 corresponds to an example of the first door, and the outer opening 11 corresponds to an example of the first opening. The inner door 40 corresponds to an example of a second door, and the inner opening 31 corresponds to an example of a second opening.

Although specific examples of the present invention have been described in detail above, these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above. The technical elements described in this specification or in the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims as of the filing. In addition, the techniques exemplified in this specification or drawings can simultaneously achieve a plurality of purposes, and achieving one of them has technical utility in itself.

2: Cooking device 3: Stove unit 10: Cabinet 11: Outer opening 13: Sealing material 20: Outer door 21: Movable rail 23: Spring 24: Floor plate 25: Stopper 30: Heating chamber 31: Inner opening 33: Sealing material 40 : Inner door 41 : Movable rail 42 : Fixed rail 44 : Inner floor board 60 : Retracting mechanism 61 : Fixed rail 62 : Curved surface 63 : Lever 63a : Tip 64 : Rotating shaft 65 : Spring 66 : Stopper

Claims (5)

a body having a first opening in the front;
a heating chamber having a second opening in a front surface, the heating chamber being disposed in the body such that the second opening is positioned inside the first opening;
a first door supported by the main body so as to be movable in the front-rear direction, and closing the first opening at a rear end position of a range of movement;
a second door positioned behind the first door, supported by the main body so as to be movable in the front-rear direction, and closing the second opening;
and
The heating cooker, wherein the second door is relatively movable in the front-rear direction with respect to the first door. 2. The heating cooker according to claim 1, wherein said second door is vertically or horizontally movable relative to said first door. 3. The heating cooker according to claim 1, further comprising a retraction mechanism for retracting said second door to a position for closing said second opening. a retraction mechanism that retracts the first door to the rear end position;
3. The heating cooker according to claim 1, further comprising biasing means for biasing said second door toward said heating chamber when said first door is positioned at said rear end position. The heating cooker according to any one of claims 1 to 4, wherein said second door is detachable.

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