JPS6337474B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a high-frequency heating device, and more particularly to a so-called turntable mechanism on which an object to be heated is placed and rotated.

Configuration of Conventional Example and its Problems A conventional high-frequency heating device will be described below with reference to the drawings.

FIG. 1 is a schematic side sectional view of a conventional high-frequency heating device. In FIG. 1, a high-frequency heating device 1 has a door 2 that can be opened and closed at its front opening, and a heating chamber 3 that houses and heats objects to be heated. Inside the heating chamber 3, there is a food tray 4 that rotates with an object to be heated placed thereon, and 5 is a motor that rotates the food tray 4. Further, 6 is a magnetron that supplies high frequency waves into the heating chamber.

FIG. 2 is an enlarged sectional view of a main part of a so-called shaft-driven turntable section on which an object to be heated is placed and rotated in a conventional high-frequency heating device.

In FIG. 2, 7 is the motor 5 shown in FIG.
The drive shaft 7 is engaged with the food tray 4 in the heating chamber 3, and power is transmitted thereto.
Reference numeral 8 denotes a roller portion disposed at the inner bottom of the heating chamber 3, and the roller 8a is rotatably provided in contact with the food placement plate 4.

According to this configuration, since the food tray 4 is engaged with the drive shaft 7, the food tray 4 cannot be pulled out to the door 2 side when checking the cooking status, making it inconvenient to use. Ta. In addition, the roller portion 8 protrudes from the inner bottom of the heating chamber 3, making it difficult to clean the inside of the heating chamber 3, which tends to be unhygienic.

On the other hand, FIG. 3 is an enlarged sectional view of a main part of a conventional turntable section using magnetic coupling means.

In FIG. 3, reference numeral 9 denotes a rotary body on which a food tray 10 is placed and is provided with a roller portion 11 and a magnet 12, and is disposed at the outer bottom of the heating chamber 16a facing the rotary body 9. A pulley 15 having a roller 13 and a magnet 14 is pivotally supported. 16b is a bottom wall of the heating chamber made of non-magnetic material. The rotational force of the motor 17 is transmitted to the pulley 14 via the belt 18, and the rotational force of the motor 17 is transmitted to the pulley 14 via the belt 18.
The rotating body 9 rotates due to magnetic coupling with the magnet 12 provided therein.

According to this configuration, the drawbacks of the conventional example shown in FIG. 2 can be solved, but at least the bottom wall 16 of the heating chamber
A non-magnetic material such as SUS304 is required, and the binding force of a magnet is highly temperature dependent. This has the disadvantage that it has to be made larger, resulting in higher costs.

OBJECTS OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and it is an object of the present invention to provide a high-frequency heating device having a turntable mechanism that is easy to use and inexpensive.

Composition of the Invention In order to achieve this object, the present invention includes a rotating body that has an engaging portion with a drive shaft and on which a food tray is placed;
The roller part on which the rotating body is placed is integrally configured to be detachable. With this configuration, the inside of the heating chamber can be easily cleaned, the configuration is simple, and the turntable mechanism is not easily affected by heat, so that an inexpensive turntable mechanism can be obtained.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

In FIG. 4, reference numeral 19 denotes a rotating body that has an engaging part 21 with the drive shaft 20 and on which a food tray 22 is placed.
Reference numeral 23 denotes a roller section which is composed of a plurality of rotatable rollers 23a on which the rotating body 19 is placed, a roller mounting pin 23b, and a roller support section 23c. The roller portion 23 is rotatably provided around the engagement portion 21 as an axis. 24 is an engaging portion 2 so that the roller portion 23 can also be taken out integrally when the rotating body 19 is lifted up.
This is a locking portion extending from 1. 25 is a motor that rotates the rotary body 19 via the drive shaft 20; 26 and 27 are the rotary body 19 and the roller support portion 23;
This is a spacer provided between C and C. Reference numeral 28 denotes an opening provided at the center of the rotating body 19 and above the drive shaft 20.

According to this configuration, not only can the food tray 22 be easily pulled out when checking the heating cooking state, but also the rotating body 19 and the roller section 23 can be taken out as a unit when cleaning the heating chamber. Furthermore, there are no protrusions at the bottom of the heating chamber except for the drive shaft 20, making cleaning easier.

Further, since the rotational force of the motor 25 is transmitted to the rotating body 19 via the drive shaft 20, it is hardly affected by heat even in a microwave oven or the like. Furthermore, since the opening 28 is provided in the upper part of the engaging part 21 when the engaging part 21 of the rotating body 19 is fitted to the drive shaft 20, incorrect installation of the rotating body 19 can be prevented.

Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

(1) The rotating body and roller part can be taken out as a unit, and when cleaning, there are no protrusions on the bottom of the heating chamber except for the drive shaft, making it easier to clean and keeping it clean at all times.

(2) Compared to turntables that use magnetic coupling means, power is transmitted directly to the rotating body via the drive shaft, so the cost of the turntable mechanism is less affected by thermal factors such as in microwave ovens. , can be provided at low cost.

(3) Since the opening is provided in the upper part of the engaging part, the fitted state of the engaging part and the drive shaft can be easily confirmed, and incorrect installation of the rotating body can be prevented.

[Brief explanation of drawings]

Fig. 1 is a schematic side sectional view of a conventional high-frequency heating device, Fig. 2 is an enlarged side sectional view of the main part of the shaft-driven turntable of the conventional high-frequency heating device, and Fig. 3 is a magnetic field diagram of a conventional high-frequency heating device. FIG. 4 is an enlarged side sectional view of a main part of a combination drive type turntable, and FIG. 4 is an enlarged side sectional view of a main part of a high-frequency heating device showing an embodiment of the present invention. 19... Rotating body, 20... Drive shaft, 21... Engaging part, 23... Roller part, 24... Locking part, 25
...Motor, 28...Open hole.

Claims (1)

[Scope of Claims] 1. A heating chamber that stores and heats an object to be heated, a food placement plate provided on the bottom surface of the heating chamber and on which the object to be heated is placed, and a heating chamber on which the food placement tray is placed. a rotating body provided with an engaging part; a roller part configured from a roller supporting part and a plurality of rotatable rollers on which the rotating body is placed and supported by roller mounting pins; and a roller part provided outside the heating chamber. a motor, and a drive shaft that engages with an engaging portion of the rotary body to transmit the rotation of the motor, the roller portion being rotatably provided around the engaging portion as an axis, and the roller portion is rotatable about the engaging portion, and The high-frequency heating device is configured to include a locking portion extending from the engaging portion so that the roller portion can be integrally attached and detached from the heating chamber. 2. The high-frequency heating device according to claim 1, wherein an opening is provided in the upper part of the engaging portion.