JPS598090Y2 - Placement table entry/exit device for high frequency heating equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to a loading/unloading device for a mounting table in a high-frequency heating device. Ru.

As shown in Fig. 1, the high-frequency heating device has a heating chamber B inside the main body A. It is designed to heat object E.

However, in recent years, in this heating device, heaters F and F' have been installed above and below in the heating chamber to perform heating at the same time.

G is the door. The heater heating described above not only heats the object to be heated E, but also heats the mounting table D and the wall surface of the heating chamber B at the same time.

Therefore, when putting one's hand into the heating chamber to take out an object to be heated, there is a risk of getting burned by touching the heater or the side wall of the heating chamber.

For this reason, as shown in FIG. 1, a means for loading and unloading the mounting table using a mounting table handle H is provided, but this is very inconvenient.

The present invention has been made to solve the above-mentioned problems, and provides a mounting table entry/exit device for a high-frequency heating device that can be used conveniently by linking the opening/closing operation of the door with the loading/unloading of the mounting table. Its purpose is to

The structure of the present invention will be explained in detail based on the embodiment shown in Fig. 2 and below.
'A U-shaped support 3 having a support groove 2 on the side opposite to the opening,
3' is fixed.

Furthermore, large-diameter moving gears 4,
4' is provided.

The moving gears 4, 4' are made of a resin with good heat resistance and low dielectric loss, such as ceramic, and are formed integrally with the shaft part 5, and have through holes drilled in both side walls 1, 1' to the extent that high frequency waves do not leak. The shaft portions 5, 5 are rotatably passed through the holes 6, 6' so that the bottom of the gear is aligned with the lower surface of the support groove 2.

Small-diameter door arm gears 7, 7' are fixed to the shafts 5, 5, respectively.

On the other hand, a door 8 for sealing the opening of the heating chamber B is pivoted to support pieces 9 provided on the main body A with hinge pins 10 so as to be able to open and close in the vertical direction.

This door 8 has rectangular through holes 11, 11 at both ends of the inner surface.
', into which one end of the door arm 12 and 12' is inserted, and are pivotally connected to each other with a pin P inside.

Each of the door arms 12 and 12' is provided with a rack 13 on its lower surface that engages with the door arm gears 7 and 7', and its other end is inserted through a rectangular through hole 15 and 15' provided in the front wall 14 of the main body A. The rack 13 and the door arm gears 7, 7' are constantly pulled together by springs 17 and 17' which are engaged with the rack 13 and the door arm gears 7 and 7'.

Further, as shown in FIGS. 3 and 5, the mounting table 18 on which the object to be heated E is mounted has a plurality of mounting rods 20 fixed to the upper surface of side edges 19, 19' of one shape at both ends. A rack 21 that meshes with the moving gears 4, 4' is provided on the lower surface of the edges 19, 19'.

As shown in FIG. 6, the mounting table 18 may have a dish-like shape with racks 21 provided on the lower surfaces of both side edges 19 and 19'.

A stopper 22 for determining the maximum opening angle position of the door 8 is protruded from each of the door arms 12 and 12', and is brought into contact with the front wall 14 to determine the opening time of the door 8.

In addition, 23... is a roller that supports a turntable (not shown), 24 is a coupling coupled to the turntable, and 25 is a motor.

Further, C is a waveguide, F and F' are heaters, and ■ is a magnetron.

The present invention is constructed as described above, and as shown in FIG.
, 2, and mesh the racks 21 on the side edges 19, 19' with the moving gears 4, 4', respectively.

When the door 8 is closed in this state, the door arm 12.
12' are constantly pulled downward by respective springs 17, 17', so that the door arm gears 7, 7' meshing with the rack 13 rotate clockwise as the door arm 12, 12' moves.

As a result of this rotation, the moving gears 4 and 4' simultaneously rotate clockwise to automatically insert the engaged mounting table 18 into the heating chamber B (see chain lines in FIG. 4).

Conversely, when the door 8 is opened, the door arm 12, 12' is pulled out, the door arm gears 7, 7' and the moving gears 4, 4' are rotated counterclockwise, and the mounting table 18 is pulled out as shown by the solid line. Ru.

Since the present invention has the structure and function as described above, the door 8
The mounting table 18 can be automatically taken in and out as the door is opened and closed, and when the door is opened, the heated object E on the mounting table 18 is located outside the heating chamber B, and the heated heater E' , F' or the side wall of the heating chamber B, so that there is no risk of getting burned by touching the side wall of the heating chamber B.

Further, since the mounting table 18 is operated by the moving gears 4 and 4', it can be operated with a small force, and the operation is reliable and trouble-free.

Furthermore, inside the heating chamber B there are moving gears 4, 4' and a support 3.
, 3' are present, cleaning is easy and the interior volume can be increased.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing a conventional high-frequency heating device, FIG. 2 is a perspective view showing an embodiment of the mounting table entrance/exit device in the high-frequency heating device according to the present invention, and FIG.
FIG. 4 is a sectional view taken along line III, FIG. 4 is a sectional view taken along line IVIV, FIG. 5 is a perspective view of the mounting table, and FIG. 6 is another perspective view of the mounting table. In the figure, A is the main body, B is the heating chamber, E is the object to be heated, 1,
1' is a side wall, 2 is a support groove, 3, 3' are supports, 4, 4'
is a moving gear, 5 is a shaft, 7 and 7' are door arm gears,
8 is the door, 12.12' is the door arm, 13 is the rack,
18 is a mounting table, 19 and 19' are side edges, and 21 is a rack.

Claims (1)

[Scope of utility model registration request] In a high-frequency heating device in which a door 8 is provided so that the opening of a heating chamber B for heating an object to be heated E can be opened and closed in the vertical direction with a door arm 12.12' inserted into the main body A, both side walls 1 of the heating chamber B , 1' have support grooves 2, 3, 3'
are provided facing each other, and the shaft portion 5 is placed on the extension line of the support groove 2 on the side wall 1.
. , 7' are always engaged with the racks 13 provided on the door arm 12, 12', and provided on the lower surface of both side walls 19, 19' of the mounting table 18 on which the object to be heated E is placed on the moving gears 4, 4'. This is a mounting table in/out device for a certain high-frequency heating apparatus, in which the mounting table 18 is moved in and out as the door 8 is opened and closed by engaging the racks 21.