JPH0439676Y2 - - Google Patents

Description

[Detailed explanation of the idea] (b) Industrial application fields The present invention relates to a microwave oven.

(B) Prior Art A microwave oven is well known in which a turntable and a motor are disposed above and below a bottom wall of a heating chamber, respectively, and the rotational force of the motor is transmitted to the turntable by a coupler passing through a hole in the bottom wall. For example, Jikko Sho 56-27454
In such microwave ovens, the turntable is designed to be easily removed from the coupler in consideration of the ease of cleaning the bottom wall of the heating chamber. If possible, cleaning the bottom wall will be easier. However, when the coupler is removed, the hole in the bottom wall of the heating chamber is exposed, which is undesirable because moisture and dirt can enter the motor side through the hole during cleaning.

(c) Problems to be solved by the invention The present invention provides a structure in which the coupler does not become a hindrance to cleaning without exposing the hole in the bottom wall of the heating chamber.

(d) Means for Solving the Problems The feature of the microwave oven of the present invention is that a cover for covering the hole in the bottom wall of the heating chamber is detachably attached to the coupler.

(E) Function The coupler can also be removed, and at that time, the cover can be removed from the coupler and used as a cover to close the hole in the bottom wall of the heating chamber.

(F) Embodiment Referring to the figure, a turntable 3 and a motor 4 are arranged above and below a bottom wall 2 constituting a heating chamber 1, respectively, and a resin coupler 6 passing through a hole 5 in the bottom wall 2 is connected to the motor. 4 is transmitted to the turntable 3.
A roller 8 rotatably attached to a suitable position of a ring 7 arranged concentrically with the coupler 6 slidably supports the periphery of the turntable 3 to ensure stable rotation of the turntable 3.

A bearing cylinder 9 is inserted into the hole 5 in the bottom wall, and the upper end of this cylinder is folded back and fixed to the bottom wall 2 around the hole 5 by welding.

The coupler 6 is composed of a lower part 10 and an upper part 11 integrally molded with each other. The lower part 10 of the coupler consists of a cylindrical body 10a inserted into the bearing cylinder 9, and a flange 10b extending from the base thereof and facing the folded surface of the upper end of the bearing cylinder 9. Furthermore, the lower part 10 of the coupler is made of silicone rubber, etc. A cover 20 consisting of the following is removably attached. Therefore, the coupler lower part 10 is rotatably supported by the bearing cylinder 9 via the cover 20, and the hole 5 in the bottom wall is covered by the cover 20.

The lower coupler 10 is further engaged with the motor rotation shaft 12 by fitting the motor rotation shaft 12 through the cover 20 into a non-circular hole cut in the lower surface thereof.

The coupler upper part 11 has a protruding body 11 that protrudes upward.
b, and these protrusions fit into engagement holes 3a, 3a, . . . provided near the center of the back surface of the turntable 3.

In the above configuration, the rotation of the motor rotating shaft 12 is transmitted to the turntable 3 via the coupler 6, and all of these transmission members are mutually removable. The bottom wall 2 of the heating chamber can be easily cleaned by removing the coupler 6, and at the same time, the cover 20 is removed from the coupler 6 and fitted into the hole 5 in the bottom wall, as shown in FIG. As a result, this hole can be covered, and moisture and dirt will not enter the motor side through the hole. Incidentally, dirt and the like that have entered the cover 20 are easily removed from inside the cover 20 after the cover 20 is removed from the hole 5.

(g) Effects of the invention According to the invention, since the coupler can be removed after the turntable is removed, the bottom wall of the heating chamber can be easily cleaned. Since the holes can be covered, moisture and dirt can be prevented from leaking to the motor side through the holes. Also, since the cover is normally used with the coupler, it does not require storage space.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the present invention, and FIG. 2 is an exploded sectional view showing the main parts thereof. 2... Heating chamber bottom wall, 3... Turntable, 4
...Motor, 5...Bottom wall hole, 6...Coupler, 1
2...Motor rotating shaft, 20...Cover.

Claims (1)

[Scope of utility model registration request] In a microwave oven, a turntable and a motor are disposed above and below a bottom wall of the heating chamber, and the rotational force of the motor is transmitted to the turntable by a coupler passing through a hole in the bottom wall. A microwave oven characterized by having a removably attached cover that covers a hole in a wall.