JPS6219620A - High frequency heating device - Google Patents

Abstract

PURPOSE:To provide a simple door cover which is easily attached to a door mainbody and an inner frame in a simple constitution by hanging a hook of the door cover to an edge part of the door inner frame welded to the mainbody with application of elasticity of the door cover itself. CONSTITUTION:A door inner frame 6 and a chalk damping electric waves are welded to a door mainbody 2 and a door cover 4 is pushed in after being et to the door inner frame 6. By pushing the door cover 4 into the door inner frame 4, a hook 8 of the door cover is caught by the door inner frame 6 and then the door cover 4 is secured to the door mainbody 2. Therefore, excellent operability is obtained and machine screws are not necessary to fix the door cover and also it is not necessary to divide the door cover into two parts. This device looks fine on the outside and has profitability in practical use.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates mainly to the structure of a door of a high-frequency heating device.

BACKGROUND ART FIG. 3 is a perspective view of a door of a conventional high-frequency heating device, and FIG. 4 is a sectional view of a main part of FIG. 3. In the figure, the door is assembled by welding the screen 7 and the choke 3 that attenuates radio waves to the door body 2, fitting the outer frame 1 into the door body 2, and then attaching the claws 8 of the door cover 4 to the door body 2.
, insert the end face 10 of the door inner frame 6 into the groove 11 of the door cover 4, and tighten the inner frame 6 to the screen 7 with the screws 6, so that the door cover 4 is attached to the door body 2.
It can be fixed to Further, FIG. 5 shows a door of another conventional high-frequency heating device. FIG. 6 is a cross-sectional view of the main parts, and the door is assembled by welding the screen, door inner frame 6, and chimney 3 to the door body 2, and then attaching the edge portion 15 bent inward to the door body. In order to insert the door cover 19 from the side by aligning the edge part 18 of the inner door frame 6 with the groove 17 provided in the door cover 19, the door cover 16 is divided into two parts, and as shown in FIG. The door cover 19 is fixed by passing the screw 2o into a screw hole 22 provided in a metal fitting 21 welded to the door body.

Problems to be Solved by the Invention However, when assembling such a high-frequency heating device, in the conventional example shown in FIG. Otherwise, the door inner frame 6 cannot be attached. Also, if the door cover 4 is broken, in order to replace it,
The door inner frame 6 must be removed, and in order to remove the inner frame 6, the screws 6 around the inner frame 6 must be removed, which is very difficult. In this case, the door seam is visible, making it unsightly.

The door inner frame 16 is welded to the main body 2, and the groove 17 provided in the door cover 4 is connected to the edge part 15 of the door main body 2 and the inner frame 1.
In order to attach the door cover 16 by fitting it into the edge part 18 of 6 and sliding it, the door cover 16 is divided into two parts, and one of the two parts, the door cover 19, must be fixed with screws into the screw hole 22 provided in the metal fitting 21. It requires two parts and fixing metal fittings, increasing the number of parts, making workability poor, and the split seams make the appearance unsightly.

The present invention solves these conventional problems,
To provide a door cover that has a simple external structure and is easy to attach to a door body and an inner frame.

Means for Solving the Problems In order to achieve the above object, the door cover of the present invention is provided with a tab on a portion of the door cover that faces the inner door frame, and a claw is provided on the edge portion of the inner door frame that is welded to the door body. The door cover is fixed to the door body by hooking the claw of the door cover using its own elasticity.

Function: The door cover of the present invention has a claw on the surface facing the inner door frame, and uses the elastic force of the door cover itself to hook the edge part of the inner frame welded to the door body into the door cover. By aligning the door cover with the inner frame welded to the door body and pushing the door cover into the inner frame of the door, the elastic door cover will spread along the inner frame of the door and move inside the door. When the door cover's claws fit into the edge of the frame, the elastic door cover returns to its original shape and is fixed to the door body, eliminating the need for fixing with screws or dividing the door cover into two parts. This has an extremely advantageous practical effect in that the door cover can be easily attached to the door body by simply pushing it into the door inner frame welded to the door body.

EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings.

As shown in FIG. 1, a door inner frame 6 and a choke 3 for attenuating radio waves are welded to the door body 2, and a door cover 4 is pushed into the door inner frame 6. The door cover 4 is provided with a claw 8 on the surface facing the inner door frame 6, and by pushing the door cover 4 into the inner door frame 6, the claw 8 of the door cover is caught on the inner door frame 6, and the door is closed. Main body 2
The door cover 4 can be fixed to.

As described above, according to the door cover of this embodiment, the door cover 4 can be fixed to the door body 2 by pushing it into the door inner frame 6 on the side of the door body 2, so the workability is good and the door cover There is no need for screws to fix the door cover 4, and there is no need to divide the door cover 4 into two.

In addition, it has a good appearance and is extremely advantageous in practice.

Effects of the Invention As described above, the door cover of the present invention provides the following effects.

(1) The door cover can be easily installed by simply pushing it into the inner frame of the door body, and there is no need for screws to fix the door cover, so the number of parts is reduced and work efficiency is improved.

(2) The door looks better on the outside because the door cover fixing screws and the joint between the two parts of the door cover are not visible.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a main part of a door of a high-frequency heating device according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the door of another high-frequency heating device, and FIG. 6 is a main part of the door. FIG. 1...Outer frame, 2...Door body, 3.
...Chalk, 4...Door cover, 5
... Screw, 6 ... Door inner frame, 8 ...
...Door cover claw, 2o...screw. Name of agent: Patent attorney Toshio Nakao and 1 other person
1 Figure? ---Door body 6---Door self-frame 8-m-Door p bar tabs Fig. 2 Fig. 3 Fig. 4 Fig. 5

Claims (1)

[Claims] A door that can be opened and closed at the opening of the heating chamber includes a door body, a door inner frame, a choke for attenuating radio waves, and an elastic door cover, and the door cover has a claw on a surface facing the door inner frame. . A high-frequency heating device, wherein the door cover is fixed to the door main body by hooking a claw provided on the door cover onto an end surface of the inner frame of the door.