JPH0517404U - Heating cooker - Google Patents

Abstract

(57) [Abstract] [Purpose] A rotating table on which food is placed rotates and moves back and forth to prevent uneven heating of the food, to facilitate the loading and unloading of the food, and to prevent burns to the cook. [Constitution] The turntable 8 is provided with a drive device 9 capable of rotating and moving back and forth, and the drive device 9 includes a motor 12 and
A motor shaft 17 that interlocks with the motor 12, a motor shaft 17 and a rotatable crank 14, an arm 13 that is rotatable with the other end of the crank 14, and a connecting rod 15 that is rotatably coupled with the other end of the arm 13. , A moving base 10 connected to the other end of the connecting rod 15 and held on the rotary base 8 via a plurality of rollers 11, and the arm 13, the crank 14, and the motor shaft 17 of the cover 16 and the rotary base 8. Cover with part, cover
A guide 26 for holding the arm 13 movably in an arbitrary direction is provided on the 16 and a rotary table 8 is rotatably supported by a motor shaft 17.
And a stopper 20 which is moved up and down by the electromagnetic relay 21 on the bottom surface 3 side of the heating chamber, and a stopper cover 28 having a large friction coefficient and a small wear at the contact portion of the stopper 20 with the rotary table 8. It is equipped with.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a heating cooker that cooks using microwave energy or electric heat energy.

[0002]

[Prior Art]

 As shown in FIG. 5 (Japanese Patent Application Laid-Open No. H2-161214), for example, a conventional heating cooker is provided with a turntable 8 driven by a driving device 4 on a bottom surface 3 of the heating chamber in the heating chamber 2 of the cooker 1. A door 5 for opening and closing the heating chamber 2 is provided on the front side of the cooking device 1, and the heating chamber bottom surface 3 and the wall surface of the heating chamber 2 close to the heating chamber 2 are provided with a proper distance 7 to prevent sparks due to electromagnetic waves and abnormal overheating. 6 is a space where the separation distance portion 7 and the heating chamber bottom surface 3 are moved. The food is placed on the turntable 8, the door 5 is closed, and cooking is performed by electromagnetic waves or electric heat (not shown). The bottom surface 3 of the heating chamber provided with the turntable 8 is projected so that the food can be easily taken out when the cooking is completed.

[0003]

[Problems to be solved by the device]

 However, in this case, particularly when cooking with electromagnetic waves, it is necessary to use a metal for the heating chamber 2 and the heating chamber bottom surface 3 in order to prevent the driving device 4 provided on the heating chamber bottom surface 3 from being heated or damaged by the electromagnetic waves. is there. Therefore, the heating chamber bottom surface 3 and the wall surface of the heating chamber 2 close to the heating chamber bottom surface 3 need to be provided with an appropriate separation distance portion 7 in order to prevent sparks due to electromagnetic waves and abnormal overheating. Electromagnetic waves enter the driving device 4 provided on the bottom 3 of the chamber, and it is extremely difficult to prevent heating and damage by electromagnetic waves.

[0006] Furthermore, food scraps and liquids easily enter the space 6 where the separation distance portion 7 and the heating chamber bottom surface 3 are moved, and therefore the back-and-forth movement operation of the heating chamber bottom surface 3 is likely to be hindered. There was also a problem in terms of aspects.

The present invention solves the above-mentioned problems of the related art and provides a structure for facilitating and taking in foodstuffs or safely.

[0006]

[Means for Solving the Problems]

 The present invention has been made to solve the above-mentioned problems, and includes a drive unit on a rotary base, the drive unit including a motor, a motor shaft that works with the motor, and a crank that is rotatably connected to the motor shaft. , An arm that is rotatably connected to the other end of the crank, a connecting rod that is rotatably connected to the other end of the arm, and an end that is connected to the other end of the connecting rod and is held on the rotating table via multiple rollers. A guide that holds at least the arm, the crank, and the motor shaft that form the drive unit with a cover and a part of the rotary base, and the cover holds the arm movably in any direction. Is installed on the bottom of the heating chamber, and a stopper that can be moved up and down by this electromagnetic relay. Large wear less stopper Kaba coefficient of friction contact portion between the turntable was assumed to be fixed or released turntable provided with a.

[0007]

[Action]

 With the above-mentioned configuration, the drive device causes the motor shaft to operate in conjunction with the motor to rotate the crank, and the plurality of rotary tables to be connected to the rotary table via the arm and the connecting rod which are movably held by the guide in any direction. It acts to rotate and move the moving table held via the rollers back and forth, and part of the cover and rotating table covers the arm, crank and motor shaft, which causes adverse effects such as abnormal heating of electromagnetic waves and sparks. To prevent the adhesion of oil and food debris from food.

The electromagnetic relay pushes the stopper provided on the bottom side of the heating chamber upward, presses the stopper cover provided on the stopper against the rotating table to fix the rotating table by friction, or pulls the stopper downward and rotates the rotating table. Acts to release the.

[0009]

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

As shown in FIG. 1, a rotary table 8 is provided above the bottom surface 3 of the heating chamber. The rotary table 8 is provided with a drive device 9 which is movable in the front-rear direction in addition to the rotating operation. The driving device 9 is provided with a moving table 10 which is held above by a roller 11 of the rotating table 8 and a motor 12 which drives both a rotating operation and a moving operation in the front-rear direction under the heating chamber bottom surface 3, and the motor 12 The crank 14 is connected to the motor shaft 17, the arm 13 is rotatably connected to the crank 14, and the connecting rod 15 is rotatably connected to the arm 13. The connecting rod 15 is detachable from the moving base 10. It is connected.

A part of the crank 14, the arm 13 and the connecting rod 15 is covered with a cover 16 provided with a guide 26 of the arm 13. Further, the motor shaft 17 penetrates the inside of the rotary base shaft 18, the rotary base 8 is rotatably held by the motor shaft 17, and the rotary base shaft 18 is provided with a protrusion 27 and is positioned at a position opposite to this. A detection device 19 is provided. Further, a part of the bottom surface 3 of the heating chamber is provided with a stopper 20 provided with a stopper cover 28 made of, for example, silicon rubber having a large friction coefficient and little wear at least at a contact portion with the rotary table 8, and the stopper 20 is an electromagnetic device. When the relay 21 is moved up and down, the stopper cover 28 and the rotary table 8 are pressed against each other or pulled out, so that the rotary table 8 is fixed or opened.

As shown in FIG. 2, the operation system includes a front / rear drive switch 22 of the turntable 8, a door switch 23, a position detection device 19, a motor 12, an electromagnetic relay 21, a heating control circuit 24, a turntable control circuit 25, and the like. It is made to work by organic bonding. The door switch 23 is turned on and off according to the opening and closing of the door 5, the position detection device 19 detects whether or not the rotary base 8 is positioned in the front, and the electromagnetic relay 21 moves the stopper 20 provided with the stopper cover 28 up and down. By the way, the front-rear drive switch 22 is configured to turn on and off the front-rear drive of the drive device 9 provided on the rotary table 8.

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

When the food is heated by electromagnetic waves or electric heat, in order to prevent uneven heating, the rotary table 8 is usually placed on a moving table 10 provided in a part of the rotary table 8 and a motor 12 and a rotary table control circuit 25 are provided. To rotate. Since the rotary base 8 is held by the motor shaft 17, when the motor shaft 17 rotates, the rotary base 8 also rotates at the same time. The food is heated for a predetermined time by the heating control circuit 24, and after the lapse of the predetermined time, the heating is finished and the rotation operation of the rotary table 8 is stopped.

In this case, when the rotary table 8 is located on the front surface, the position detecting device 19 detects the protrusion 27 of the rotary table shaft 18 (for example, in an optical sensor including a light emitting element and a light receiving element for detecting a change in light amount). The rotation operation is stopped by detecting the position where the amount of light reflected from the light emitting element changes due to the rotation operation of the protrusion 27).

When the door 5 is opened, the door switch 23 detects that the door 5 has been opened, operates the electromagnetic relay 21, pushes the stopper 20 upward, and at least the stopper cover 28 provided at the contact portion with the rotary table 8 is opened. The rotary table 8 is fixed by pressure contact with the rotary table 8. Here, when the front / rear drive switch 22 of the drive device 9 provided on the rotary base 8 is pressed, the rotary base 8 is rotatably held by the motor shaft 17, so the rotary base 8 remains fixed and the motor shaft 17 is fixed. Will only rotate.

As shown in FIG. 3, when the motor shaft 17 rotates while the rotary table 8 is fixed, the crank 14 connected thereto also rotates with the distance OB as a radius and is rotatably connected thereto. The arm 13 moves back and forth in the OA direction by the action of the guide 26 to move the connecting rod 15 back and forth. Since the connecting rod 15 is connected to the moving table 10, it is smoothly moved back and forth by the effect of the roller 11. The movable table 10 reciprocates once when the motor shaft 17 makes one rotation. Here, the rotary base control circuit 25 controls the motor shaft 17 to rotate in the opposite direction each time the front-back drive switch 22 of the rotary base 8 is pressed once, so that the mobile base 10 is projected and stopped, or It can be returned to the position and stopped.

The material of the rotary base 8 and the cover 16 of the drive unit 9 is metal (stainless steel, surface-treated steel plate, etc.), so that the drive unit components inside the cover 16 (metal crank 14, arm 13 etc.) It is possible to prevent the abnormal heating of electromagnetic waves and the adverse effects of sparks, etc., while at the same time providing a structure that can withstand the high temperatures of oven cooking. The crank 14 and the arm 13 need not be limited to metal, of course, and ceramics that does not easily absorb electromagnetic waves may be used. In particular, the cover 16 not only prevents the abnormal overheating of electromagnetic waves and adverse effects such as sparks, but also prevents the oil from adhering to food and the adherence of food debris from being applied to the driving device 9 in practical use. It also has the function of maintaining smooth operation.

Since the stopper 20 for fixing or releasing the rotary table 8 is provided on a part of the bottom surface 3 of the heating chamber, it is possible to easily fix or open the rotary table 8 by bringing the rotary table 8 close to the bottom surface 3 of the heating chamber. By arranging it inside the rotary table 8 that is easy to touch and is not easily affected by food, the factor that obstructs the movement of the stopper 20 that moves up and down can be eliminated. The stopper 20 does not have to be located on the bottom surface 3 of the heating chamber, but may be provided near the rotary table shaft 18 to fix or open the rotary table shaft 18.

The roller 21 for holding the driving device 9 may be provided on the movable table 10 instead of on the rotary table 8 side. When the roller 21 is provided in front of the movable table 10, it is generated when food is placed in front of the movable table 10. It is also possible to receive an unbalanced load on the bottom surface 3 of the heating chamber.

[0021]

[Effect of the device]

 As described above, according to the cooking device of the present invention, the rotating table is provided with the front-back driving device, and therefore the following effects can be obtained.

(1) With the function of preventing uneven heating due to the rotation operation and the easy movement of food through the forward / backward movement operation, the chance of touching the heated heating chamber is reduced, which may cause burns. It has a dual-purpose prevention function and can be significantly improved.

(2) Since the rotation operation and the back-and-forth movement operation can be driven by one motor, it is possible to provide a structure that has a simple structure and can be manufactured at low cost.

(3) Since the turntable can be provided with a nearly sealed front-back drive device, not only the abnormal overheating of electromagnetic waves and adverse effects such as sparks can be prevented, but also oil adhesion from food and food scraps can be prevented. A practical structure that prevents malfunction due to adhesion can be achieved.

(4) The stopper of the rotating table is provided on the bottom surface of the heating chamber, and it is possible to remove the factor that obstructs the operation of the stopper that moves up and down. The stopper moves up and down by the operation of the electromagnetic relay to smoothly rotate the rotating table. Can be fixed or opened, and a stopper cover made of, for example, silicon rubber, which is provided on the bottom of the heating chamber at least in contact with the rotating table, has a large friction coefficient and little wear. It can be fixed.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of a heating cooker showing an embodiment of the present invention.

FIG. 2 is a block diagram of an operating system of the same.

FIG. 3 is also an operation explanatory diagram.

FIG. 4 is an external perspective view of the same.

FIG. 5 is an explanatory view of a main part of a conventional heating cooker.

[Explanation of symbols]

 2 Heating chamber 3 Bottom of heating chamber 8 Rotating table 9 Driving device 10 Moving table 11 Roller 12 Motor 13 Arm 14 Crank 15 Connecting rod 16 Cover 17 Motor shaft 20 Stopper 21 Electromagnetic relay 26 Guide 28 Stopper cover

Claims (1)

[Scope of utility model registration request] 1. A heating cooker comprising a heating chamber (2), a rotating table (8) above the heating chamber bottom (3), and a motor (12) below the heating chamber bottom (3). 8) is provided with a drive device (9) capable of rotating operation and back-and-forth movement operation.
(9) is a motor (12), a motor shaft (17) interlocking with the motor (12), a crank (14) rotatably connected to the motor shaft (17), and the other end of the crank (14) A freely connected arm (13), a connecting rod (15) rotatably connected to the other end of the arm (13), and a plurality of rollers on the rotary base (8) connected to the other end of the connecting rod (15). A movable base (10) held via (11), and covers at least the arm (13), the crank (14) and the motor shaft (17) which constitute the drive unit (9). 16) and a part of the turntable (8), the cover (16) is provided with a guide (26) for movably holding the arm (13) in any direction, and the motor shaft (17)
The rotary table (8) is rotatably held by the electromagnetic relay (21) on the bottom surface (3) of the heating chamber, the stopper (20) that can be moved up and down by the electromagnetic relay (21), and the stopper (20). A heating cooker characterized in that a stopper cover (28) having a large friction coefficient and less wear is provided at a contact portion with the rotary table (8), and the rotary table (8) is fixed or opened.