JPS5853905Y2 - High frequency heating device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a door arm mounting structure for a high frequency heating device.

FIG. 1 is an external view of a general high-frequency heating device using a door. Reference numeral 1 indicates a main body, and a door 2 is attached with a hinge (not shown) so as to be openable and closable.

An arm 3 is provided to ensure smooth opening/closing of the door and to regulate the position of the door 2 when opening.

The arm 3 is rotatably connected to the door by a pin 4.

FIG. 2 is a partial sectional view of the arm shaft support of the door 2, where 5 is the outer plate of the door, and 6 is the inner plate of the door.

This embodiment is a door using a choke attenuator, and an outer panel 5 and an inner panel 6 form a space of +wavelength of the operating frequency.

7 covers the choke opening with an inner frame made of a low dielectric constant material.

An arm support 8 is provided on the outer plate 5, and an arm 9 is pivotally supported by a pin 10 having a large diameter at one end.

The other end of this pin 10 is grooved to press the E-shaped ring 11 and prevent it from falling.

Instead of using the E-shaped ring 11, various structures have been used to prevent the pin 10 from falling out, such as applying pressure to one end of the pin to make it thicker or threading the pin 10 and fixing it with a nut. .

When the E-shaped ring 11 is used, the pin 10 requires a groove, making the pin expensive and having to be press-fitted, making removal during assembly or repair inconvenient.

Furthermore, with the method of increasing the thickness by applying pressure, once it was assembled, it was impossible to remove it for repairs.

In addition, the method of cutting screws on the pins and fixing them with nuts makes the pins expensive and requires time and effort to assemble and remove, making it difficult to service.

Further, as shown in FIG. 3, the large diameter portion of the pin 10 is placed inside the door, and its end surface is brought into contact with a protrusion 12 provided on a part of the inner frame 7.

The axial movement of the pin 10 is restricted in one direction by the large diameter part of the pin itself and by the protrusion 12 in the other direction, so that it cannot come out.

However, when servicing the door arm 9, it is necessary to remove the inner plate 6 and the inner frame 7, which is time-consuming and difficult.

Also, during manufacturing, there would be no problem if the door was made into a unit and immediately attached to the main body, but in some cases, the door unit was often stored temporarily and supplied as the main body line moved.

At that time, the door arm 9 was unfortunately damaged and a part 13 of the inner frame 7 was so weak that it sometimes broke off and had to be reassembled.

Therefore, the present invention is intended to eliminate the drawbacks of the conventional upper part with a simple structure, and one embodiment thereof will be described below with reference to FIG. 4.

Note that parts that are the same as those in the prior art are designated by the same reference numerals.

The outer plate 5 is provided with arm receivers 8 a and 8 b, and the arm 9
is pivotally supported at one end by a pin 15 having a large diameter and a threaded portion at the other end.

It goes without saying that the arm receiver 8b may have a female thread and the pin 15 may have a male thread, but it goes without saying that it is better to provide a prepared hole in the arm receiver 8b and make the pin 15 a self-tapping pin in the same way as a self-tapping screw.

Therefore, in the present invention, the tip of the arm pin is a threaded part, and the arm pin can be removed from the outside of the side of the door. It can be easily removed and removed without disassembling the part, and the pin can be configured at low cost like a tapping screw with a stepped seat, and when assembling or disassembling, there is no need to press fit E-shaped rings, etc., or sew. The work becomes easier as there is no need for

It also eliminates the need for separate parts such as E-shaped nuts and nuts, reduces storage space in the door unit, and eliminates damage to the inner frame caused by the arm during storage, which has great practical value.

In the above embodiment, a vertically swinging door was described, but it goes without saying that the same applies to a horizontally swinging door.

[Brief explanation of drawings]

Figure 1 is a perspective view of a general high-frequency heating device with the door open.
2 and 3 are partial sectional views of a conventional door arm shaft support, and FIG. 4 is a partial sectional view of an arm shaft support showing an embodiment of the present invention. 2...Door, 5...Exterior panel, 6...
...Inner plate, 7...Inner frame a, 8...Arm holder, 9...Arm, 10...Pin,
12...Protrusion, 14...Inner frame, 15.
·····pin.

Claims (1)

[Scope of utility model registration request] a high-frequency heating device main body; a door that opens and closes the front surface of the high-frequency heating device main body; one end rotatably provided on the high-frequency heating device main body and the other end rotatably provided on the door; an arm holder provided on the door for receiving the door arm; and an arm pin for rotatably providing the door arm on the arm holder;
The arm pin has a threaded portion at an end, the other diameter is a large diameter portion, and the arm pin is configured to pass through the arm receiver and the door arm from the outside of the door side surface and tighten with a screw.