JP2964103B2 - Cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking device for cooking by electromagnetic waves or electric heat.

[0002]

2. Description of the Related Art As shown in FIG. 5, for example, a conventional heating cooker is provided with a bottom surface 3A in which a saucer 4A is attached to a inside 2A of a cooker 1A, and when cooking food, the food is placed on the saucer 4A. The heating device is heated by electromagnetic waves or electric heat, and at the end of cooking, an operation switch 6A provided on the front surface of the cooker 1A is operated, and a driving device provided on the bottom surface 3A inside the refrigerator by an electric circuit (not shown) such as a microcomputer. 9A is driven, a part of the tray 4A is protruded from the interior 2A together with the interior bottom surface 3A to a predetermined position, and the food after cooking can be safely and easily stored without putting a hand in the interior 2A of the high temperature. Some of them are configured so that they can be taken out from 2A. (See JP-A-2-161214)

[0003]

However, in this embodiment, a plurality of guides are provided to regulate the vertical and horizontal movements of the bottom surface 3A when the bottom surface 3A moves from the inside 2A. Also, a plurality of rollers are provided for smoothing the movement of the inner bottom surface 3A in the front-rear direction. In addition, a drive motor, a belt, a pulley shaft and the like are separately provided separately from the rotation of the tray 4A in order to move the inner bottom surface 3A in the front-rear direction, and a stop position of the inner bottom surface 3A during movement is detected. It has a complicated structure as a moving mechanism of the inside bottom surface 3A, for example, by providing a plurality of position detection switches.

[0004] In addition, food scraps and liquids from food being cooked may easily enter the space 8A of the interior 2A when the separation distance portion 7A and the interior bottom surface 3A have moved. Disturbance is likely to occur in the back and forth movement of the bottom surface 3A.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has a door which can be opened and closed at the front of a heating chamber for heating a stored object to be heated by electromagnetic waves and electric heat, and an upper portion of a bottom of the heating chamber. And a heating rod equipped with a rotating table and a motor at the bottom, respectively, a moving bar on which the object to be heated is mounted is provided on the upper surface of the rotating table, and a connecting rod that performs a rotating operation of the rotating table and a forward / backward moving operation of the moving table; Equipped with a drive device consisting of an arm, a crank and a motor having a motor shaft, one end of the crank is fixed to a motor shaft that rotatably holds a proper position of a turntable, and one end of the arm is rotatably connected to the other end of the crank. , The other end of the arm is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the moving table to hold and connect the connecting portion between the arm and the connecting rod. The turntable has a cover that forms a guide that can move the turntable in any direction.The turntable is locked when the door is opened, and the turntable is locked when the door is closed. The cooking surface was formed by forming the bottom convex surface located on the same surface in the bottom surface.

[0006]

[Action] By doing this, the cooking device is
When the door is opened and the turntable is fixed by the lock mechanism, the connecting portion between the arm of the drive device and the connecting rod linearly moves in the guide formed on the cover, so that the movable table can be moved inside and outside the heating chamber. The food can be handled without moving your hand into the high-temperature heating chamber, so that the top of the turntable and the bottom surface of the bottom of the heating chamber are the same. Since it is located on the surface, the moving table smoothly moves on the turntable and the bottom surface convex portion surface. Further, when the door is closed and the fixing of the turntable is released, the turntable is rotated by the motor shaft of the driving device to heat the food without causing uneven heating. In addition, the cover protects drive components such as connecting rods, arms, cranks, and motor shafts from abnormal heating and sparks caused by electromagnetic waves, and adheres food debris to those components during heating by electromagnetic waves. To prevent In addition, the components are prevented from being exposed to a high temperature while the electric heating is being performed.

[0007]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing an appearance of a heating cooker according to an embodiment of the present invention when a door is opened, FIG. 2 is a sectional view of the essential part, and FIG.
FIG. 4 is a configuration diagram of the operation system, and FIG. 4 is a diagram for explaining an operation related to the driving device.

In FIG. 1, reference numeral 1 denotes a main body of a cooking device, in which a heating chamber 2 is formed, a bottom surface convex portion 29 is formed on a peripheral portion of a bottom surface 3 of the heating chamber 2, and a heating chamber 2 has a front surface.
An openable / closable door 5 is provided to cover the front opening.

Reference numeral 8 denotes a disk-shaped turntable having a hole 8A formed in the center thereof.
Is located on the same plane as the bottom surface convex portion surface 29, and a disc-like shape held on the turntable 8 by a plurality of rollers 11 provided on the upper surface of the turntable 8. The moving table 10 is provided.

The moving table 10 is provided with a plurality of rollers 10A on the opposite side of the rotating table 8, and when the moving table 10 is on the rotating table 8 and the rotating table 8 rotates, the moving table 10 is moved together with the rotating table 8. It is designed to rotate. Mobile table 1
Numeral 0 is connected to the driving device 9 so that when the rotation of the turntable 8 is stopped, the moving operation in the front-rear direction can be performed via the rollers 10A and 11.

Reference numeral 12 denotes a motor, which is commonly used for driving both the rotating operation of the moving table 10 and the moving operation in the front-rear direction, and is fixed to a lower portion of the bottom surface 3 of the heating chamber.

Reference numeral 17 denotes a stepped shoulder 17A near the upper end thereof.
A crank 14 is fixed to the motor shaft 17.

The crank 14 is provided with an arm 13 and the arm 1
3, a connecting rod 15 connected by a pin-shaped connecting portion P is rotatably connected to each of the rotary table 8, the moving table 10, the motor 12, the motor shaft 17, the crank 14, the arm 13, the connecting rod 15, and the like. Constitute the driving device 9.

Reference numeral 16 denotes a cover, which includes the crank 14 and the arm 1
3 and a part of the connecting rod 15 are integrally formed on the turntable 8 on the side facing the moving table 10, and the connecting portion P is formed on the cover 16 when the moving table 10 is moved back and forth. A guide 26 of the arm 13 that slides and moves the connecting rod 15 linearly.
Is formed.

Numeral 18 is a rotary table shaft formed in a cylindrical shape, which is integrally suspended from the rotary table 8 so as to surround the periphery of the hole 8A at the center of the lower surface of the rotary table 8.
The turntable 8 on which the peripheral edge is mounted is rotatably held on a shoulder 17A penetrating the inside. Reference numeral 27 denotes a projection provided on a side surface portion of the lower end of the turntable shaft 18, and a position detection device 19 for detecting a predetermined position of the turntable 8 stopped at the end of the heating and cooking is provided at a portion corresponding to the projection 27. I have.

Reference numeral 20 denotes a stopper which moves up and down by an electromagnetic relay 21. The stopper 20 is provided at a portion which penetrates a part of the bottom surface 3 and fits into a stopper receiver 28 formed on the lower surface of the turntable 8, and which is provided at the end of heating cooking. The turntable 8 stopped at the position is fixed (when the door is opened), and serves to release the fixation of the turntable 8 (when the door is closed) during heating and cooking.
Lock mechanism C with stopper 20 and stopper receiver 28
Is composed.

Reference numeral 22 denotes a front / rear drive switch, which is operated when the drive device 9 is moved back and forth.
It is provided on the upper right side of the front.

Reference numeral 23 denotes a door switch, which turns on and off a power supply (not shown) when the door 5 is opened and closed, and energizes the main body 1 by operating the door switch 23 on and off. Are ON and OFF controlled.

Reference numeral 24 denotes a heating control circuit for controlling the heating intensity of the object to be heated in accordance with the type of cooking.

Reference numeral 25 denotes a turntable control circuit for rotating the food placed on the movable base 10 via the motor 12 during heating and cooking of the food. By rotating the shaft 17 half way, a part of the moving table 10 is protruded from the inside of the heating chamber 2 to the outside of the heating chamber 2, and the motor shaft 17 is rotated half a turn in the next predetermined time to return the moving table 10 to the inside of the heating chamber 2. It controls.

Front / rear drive switch 22, door switch 2
3. The operation system of the driving device 9 is constituted by a series of these organic connections such as the position detecting device 19, the heating control circuit 24, the turntable control circuit 25, the electromagnetic relay 21, and the motor 12.

Next, the operation of the present invention will be described.

When starting heating and cooking of food by electromagnetic waves or electric heat, first, the object to be heated is placed on the moving table 10 provided on the rotating table 8 in the heating chamber 2 and then the door 5 is closed. A signal from the door switch 23 that detects that the door 5 is closed is sent to the heating control circuit 24 and the turntable control circuit 25.

At the same time, a signal is sent from the heating control circuit 24 to the turntable control circuit 25, and the peripheral portion of the hole 8A on the lower surface side of the turntable 8 is held by the shoulder 17A of the motor shaft 17 while heating the food on the moving table 10. The rotated turntable 8 is rotated by the motor 12 that has received the signal from the turntable control circuit 25.

During the heating and cooking, the food is heated by the heating control circuit 24 at a predetermined heating intensity corresponding to the type of cooking of the food for a predetermined time, and when the predetermined heating time has elapsed, the heating and cooking is finished. The heating and cooking is completed, and the position effecting device 19 detects the protrusion 27 (for example, the light from the light emitting element is detected by the rotation operation of the protrusion 27 by an optical sensor that detects a change in the amount of light including the light emitting element and the light receiving element). When the position where the amount of reflection changes is detected, etc.), a signal indicating that the turntable 8 is located at a predetermined position is sent from the position detection device 19 to the turntable control circuit 25, and the turntable control circuit 25 12 and a signal to the heating control circuit 24.

The motor 12 that has received the signal from the turntable control circuit 25 stops rotating, the turntable 8 stops rotating, and the heating control circuit 24 that receives the signal from the turntable control circuit 25 also heats the food. To stop.

Next, when the door 5 is opened to take out food from the heating chamber 2, the door switch 23 detects that the door 5 has been opened, and the detection signal from the door switch 23 again causes the heating control circuit 24 and It is sent to the turntable control circuit 25.

The heating control circuit 24 receiving this detection signal
Holds the food heating stop state, and the turntable control circuit 25 holds the motor 12 rotation stop state.

On the other hand, the turntable control circuit 25 which has received a signal from the position detector 19 that the turntable 8 has stopped at a predetermined position.
, The electromagnetic relay 21 is operated to push the stopper 20 upward, and the turntable 8 is non-rotatably fixed by a lock mechanism C whose tip is fitted to the stopper receiver 28.

The front / rear drive switch 22 which is operated while the turntable 8 is fixed in a non-rotatable manner is controlled by a motor via a turntable control circuit 25 so that the front / rear drive switch 22 is rotated half a time in a fixed time every time the switch 22 is pressed once. The rotation of the shaft 17 is controlled.

Therefore, each time the front / rear drive switch 22 is pressed once in the above-mentioned state in which the turntable 8 is fixed so that it cannot rotate, the motor shaft 17 rotates half a turn for a certain period of time.
The motor shaft 17 only rotates half a turn for a certain time each time the front / rear drive switch 22 is pressed while slipping and rotating with the shoulder 17A on which the periphery of the hole 8A is placed.

Now, when the motor shaft 17 makes a half rotation in a fixed time while the turntable 8 is fixed, the crank 14 fixed to the motor shaft 17 rotates clockwise as shown by a solid line in FIG. Rotate.

At this time, the arm 13 rotatably connected to the crank 14 also rotates in conjunction with the crank 14, but the connecting portion P between the arm 13 and the connecting rod 15 moves inside the guide 26 as shown in FIG. The connection rod 15 linearly moves in the AO direction (moves forward toward the outside of the heating chamber 2), and moves toward the outside of the heating chamber 2.

For this reason, the movable table 10 is configured such that the roller 10A located on the door 5 side is moved from the upper surface of the movable table 10 to the bottom convex surface 29.
The roller 11 moves while rolling upward, and the roller 11 comes into rolling contact with the rotating table 8 side of the moving table 10, and the rotating table 8
The upper part smoothly moves toward the outside of the heating chamber 2 and protrudes, and stops at a predetermined position.

In this state, the food after heating and cooking on the moving table 10 is taken out.

When the front / rear drive switch 22 is pressed once after the food is taken out, the crank 14 makes a half turn clockwise as shown by a dotted line in FIG.

At this time, the arm 13 rotatably connected to the crank 14 also rotates in conjunction with the crank 14, and the connecting portion P linearly moves in the guide 26 in the OA direction (inside the heating chamber 2). The connecting rod 15 moves toward the inside of the heating chamber 2.

At this time, the movable table 10 smoothly moves on the rotary table 8 toward the inside of the heating chamber 2 while making rolling contact opposite to that when the roller 10A and the roller 11 protrude. Stop at the position where it was located before the move within.

The parts of the drive unit 9 (such as the metal crank 14 and the arm 13) covered with a cover 16 made of a metal (stainless steel, surface-treated steel plate, etc.) prevent electromagnetic waves from entering and can be used for oven cooking and the like. The drive device 9 is protected from high temperatures.

Here, the crank 14 and the arm 13 need not be limited to metal, but may be ceramics which hardly absorb electromagnetic waves.

In particular, the cover 16 not only prevents adverse effects such as abnormal overheating and sparks due to electromagnetic waves of the components of the drive device 9 but also prevents oil and food residues from food.

The crank 14 is connected to the motor shaft 1
The rotating table 8 may be detached from the heating chamber 2 at the time of cleaning the heating chamber 2 by using a method in which the driving force is detachably and indirectly transmitted without being directly connected to the heating rod 2.
Even if it is not directly connected, a magnet is provided at a connecting rod portion in the cover 16 and a magnet is also provided at a moving base portion at a relative position thereof to indirectly connect the mechanism portion of the driving device 9. May be completely sealed.

Here, the detection of the moving position of the moving table 10 is not performed by the method of moving the motor shaft 17 which makes a half rotation in a fixed time every time the front / rear drive switch 22 is pressed once, but by the method of detecting the position of the moving table 10 separately. A method of providing a device and stopping at a predetermined position may be used.

In this case, even if the moving table 10 stops during the forward and backward movement due to a power failure or the like, the moving table 10 can be easily stopped at a predetermined position after re-energization.

The turntable control circuit 25 controls the turntable 8 with the stopper 20 when the door 5 is completely opened, and controls the motor shaft 17 to rotate for a predetermined time when it is confirmed that the turntable 8 is fixed. When the door 5 is opened without pressing the front / rear drive switch 22, the moving table 1 is automatically
An automatic food take-out system may be used in which 0 projects to a predetermined position and stops.

[0047]

As described above, according to the cooking device of the present invention, the rotating operation and rotation of the turntable provided with a cover formed with a guide capable of moving the connecting portion between the arm and the connecting rod in an arbitrary direction are provided. A drive device having a simple structure for performing a back and forth movement operation of a movable table on which a heated object provided on the table is mounted, and a lock mechanism for fixing and opening the rotary table when the door is closed and the door is opened, respectively, are provided. When the lock mechanism is in the released state, the turntable rotates to prevent uneven heating of food during cooking, and when the lock mechanism is effective, the turntable is fixed and the movable table is moved back and forth by the guide. At the end of heating cooking, part of the moving table is projected from the heating chamber to the outside of the heating chamber to safely and easily take out the food after cooking on the moving table without putting your hands in the high-temperature heating chamber. Can be done, Heated the heating chamber prevention of burns during cooking decreases the chance to touch the safety is improved Hakare.

[0048] A plurality of rollers for holding the moving table provided on either the rotating table or the moving table are provided, respectively, and a bottom convex surface located on the same plane as the upper surface of the rotating table is formed in the bottom surface. As a result, while the roller of the carriage moves while rolling from the top of the carriage to the convex surface of the bottom,
The roller of the turntable rolls and comes into contact with the movetable on the turntable side, and the movetable smoothly moves on the turntable toward the outside of the heating chamber and protrudes, or moves smoothly toward the inside of the heating chamber. As a result, the moving table moving on the turntable smoothly moves back and forth.

[0049]

[Brief description of the drawings]

FIG. 1 is an external perspective view of a heating cooker according to an embodiment of the present invention when a door is opened.

FIG. 2 is a sectional view of the main part.

FIG. 3 is a configuration diagram of the operation system.

FIG. 4 is a diagram for explaining an operation related to the driving device.

FIG. 5 is an external perspective view of a conventional heating cooker when a door is opened.

[Description of Signs] 2 heating chamber, 3 bottom surface, 5 door, 8 turntable, 9 drive device, 11 roller, 11A roller, 10 moving stand, 12 motor, 13 arm, 14 crank, 15 connecting rod, 16 cover, 17 Motor shaft, 26 guide, 29 bottom convex surface, P connection part, C lock mechanism.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F24C 7/02 551 F24C 15/16 H05B 6/78

Claims (1)

(57) [Claims] 1. A heating cooker provided with a door that can be opened and closed at the front of a heating chamber for heating a stored object to be heated by electromagnetic waves and electric heat, and a turntable and a motor at the top and bottom of the bottom of the heating chamber, respectively. A connecting rod (15) and an arm that have a moving table (10) on which the object to be heated is mounted on the upper surface of the rotating table (8), and perform the rotating operation of the rotating table (8) and the forward / backward moving operation of the moving table (10). (13) A drive unit (9) comprising a motor (12) having a crank (14) and a motor shaft (17), and a crank on a motor shaft (17) for rotatably holding a proper position of a turntable (8). An end of the arm (13) is rotatably connected to the other end of the crank (14), and the other end of the arm (13) is connected to a connecting rod (1).
5), the other end of the connecting rod (15) is connected to the moving table (10), and the arm (13) and the connecting rod (1) are connected.
5) While maintaining the connection part (P) with the connection part (P)
A cover (16) for forming a guide (26) for moving the guide in an arbitrary direction is formed on the turntable (8), the turntable (8) is fixed when the door (5) is opened, and the turntable is closed when the door (5) is closed. A lock mechanism (C) for the turntable (8) for releasing the fixation of (8) is provided, and a bottom surface (29) located on the same plane as the top surface of the turntable (8) is formed in the bottom surface (3). A cooking device characterized by the following.