JPS633436B2 - - 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 rotating saucer 4 on which the object to be heated is placed.
5 is a motor that rotates the saucer. 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 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.
8 is a drive shaft that transmits the rotation of the drive shaft 7, and 8 is a roller portion that transmits the rotation of the drive shaft 7. Reference numeral 9 denotes a rotating body that is placed on the roller section 8 and rotated by the roller section, and the rotating body 9 has a saucer 4 on which the object to be heated is placed.
is listed. 9a is a flange provided around the rotating body 9 for positioning with the roller portion 8.

According to this configuration, when the user removes the rotating body 9 and the roller part 8 for cleaning or the like and assembles these parts for next use, the position of the rotating body 9 is determined by the flange on the outer periphery of the rotating body 9. 9a
Therefore, there were cases where the rotating body 9 was not placed correctly on the roller section 8.

In addition, when taking out the saucer 4 after using the high-frequency heating device 1, the user generally does not lift the saucer 4, but slides it out while placing it on the rotating body 9, but at that time, the position of the rotating body 9 may shift. It was hot.

FIG. 3 shows a state in which the above-mentioned rotating body 9 is displaced. In FIG. 3, 10 is a roller of the roller section 8, and 11 is a supporting metal fitting for the roller 10.

The flange 9a of the rotating body 9 was inserted between the roller 10 and the support metal fitting 11, and it was difficult to tell that the position was misaligned at first glance.

If high-frequency heating is performed with the rotating body 9 out of position, sparks may occur between the support fitting 11 and the rotating plate 9, which is extremely dangerous.

Purpose of the Invention The present invention has been made in view of the above-mentioned drawbacks, and provides a high-frequency heating device that prevents misalignment of the rotating body of a so-called turntable on which an object to be heated is mounted and rotated, and is free from dangers such as sparks. It is something to do.

Composition of the Invention In order to achieve this object, the present invention includes a rotating body provided with a positioning convex portion on its back surface, a drive shaft provided with a concave portion fitted with the convex portion in the center of the upper surface, and and a roller section that transmits rotation to the rotating body. This configuration prevents the rotating body from being incorrectly installed and from shifting when the tray is inserted or removed.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 4 and 5.

In FIG. 4, 12 is a rotating body with a convex portion 13 on its back surface, and 14 is a concave portion 15 that fits into the convex portion 13.
This is a drive shaft with a 16 is the drive shaft 14
17 is a roller portion that transmits the rotation of the drive shaft to the rotating body 12.

According to this configuration, even if the saucer placed on the rotating body 12 is slid and taken out, the rotating body 12
The positional deviation of the rotating body 12 is greatly reduced compared to the conventional one due to the engagement of the convex portion 13, and the possibility of incorrect installation of the rotating body 12 is also greatly reduced.

Furthermore, even if the rotating body is misaligned or installed incorrectly, the convex portion 13 of the rotating body 12 will ride on the drive shaft 14 as shown in Fig. 5, resulting in a very unstable condition, which may cause the user to It is obvious at a glance that the rotating body is not installed correctly.

Further, if the convex portion 13 is formed into a tapered shape, and the recessed portion 15 is formed into a wide-mouthed tapered shape, it becomes very easy to install the rotating body.

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

(1) Since the rotating body has a protrusion, there is almost no displacement of the rotating body even when the tray is slid and removed.

(2) Since the rotating body is provided with a convex portion, if the rotating body is incorrectly installed or misaligned, the rotating body will be in a very unstable state, and the user will be able to immediately sense the misalignment.

[Brief explanation of the drawing]

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 turntable section of the conventional high-frequency heating device, and Fig. 3 is an incorrectly installed rotating body of the same high-frequency heating device. FIG. 4 is an enlarged side sectional view of the main part of a high-frequency heating device showing an embodiment of the present invention, and FIG. 5 is an enlarged side sectional view of the main part showing the state of misalignment. FIG. 6 is an enlarged side sectional view of a main part showing a state of installation or misalignment. 12... Rotating body, 13... Convex portion, 14... Drive shaft, 15... Concave portion, 16... Motor, 17...
roller part.

Claims (1)

[Scope of Claims] 1. A heating chamber that stores and heats an object to be heated, a rotating body that is provided on the bottom of the heating chamber and rotates with a saucer on which the object to be heated is placed, and the rotating body. A motor is provided on the outside of the bottom surface of the heating chamber, and a drive shaft that transmits the rotation of the motor to the roller section, and a recess is provided on the top surface of the drive shaft, and a recess is provided on the top surface of the drive shaft, and A high-frequency heating device is provided with a convex portion, and the convex portion and the concave portion fit into each other. 2. The high-frequency heating device according to claim 1, wherein the recess has a wide-mouthed tapered shape.