JPH0339811Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to an improvement in the panel structure of a cooking appliance that uses a polyhedral drum to display cooking information.

[Technical background of the invention and its problems]

Some microwave ovens (cookers) use polyhedrons to display cooking information such as cooking menus and cooking times to the user through a filter (transparent part) provided on the operation panel. This type of panel structure allows users to select the desired cooking menu and the required cooking time by rotating the drum using the operating section provided on the operating panel and positioning the cooking information on each side relative to the filter. I am trying to display it in

Traditionally, structures using these polyhedra are:
As shown in FIG. 5, a drum shaft d is provided at the end of a drum a made up of a tetrahedron, and a polyhedral shaft b having a four-sided shape corresponding to the shape of the tetrahedron and a rotating shaft c are connected to each other. The drum a is disposed in a vertical direction inside a filter (transparent part) f provided on an operation panel e.
The rotating shaft c is rotatably supported by a bearing h supported by the main body g, and a U-shaped leaf spring (spring) as shown in FIG. ) i is used, and the movement of the multifaceted shaft portion b is regulated by the displacement of the leaf spring i.

Incidentally, since such cooking information is displayed using a certain area of the operation panel e, it is desirable that the area can be effectively utilized to make it easy to see and display the information in a well-balanced manner on the operation panel e.

However, according to the above-described structure in which the drum shaft d is provided so as to protrude outward from the end surface of the drum a, the plate spring i for regulating the drum a is installed above the end surface of the drum a. In addition to requiring space, a space for installing the bearing portion h is also required. This space causes the position of the drum a to be lowered on the operation panel e whose height is predetermined;
The height of the drum a and the height of the filter f had to be reduced, and as a result, the distance A from the top of the operation panel e to the top of the drum a, which is useless as a display, became unnecessarily long. Due to the lack of overall balance and the short overall length of drum a, the cooking menu, characters indicating cooking time, and scale displays had to be small and dense, making them difficult to read.

[Purpose of invention]

This idea was created in view of the above circumstances, and its purpose is to effectively expand the size of the drum and the transparent part by reducing the portions that are useless for display purposes. The purpose is to provide a panel structure for a cooker.

[Summary of the idea]

In other words, by arranging the drum shaft that supports the drum and the spring that positions the drum inside the drum, this invention allows the space necessary to support the drum and the space necessary to install the spring to be included inside the drum. In addition, the end of the drum is brought as close as possible to the end of the operation panel, and the total length of the drum and the total length of the transparent section are increased by the reduced space.

[Example of idea]

This invention will be explained below based on an embodiment shown in FIGS. 1 to 3. Figure 3 shows the appearance of a microwave oven, which is a cooking device, and 1 has a heating chamber inside.
A main body in which a heater and a high-frequency oscillation system (none of which are shown) are arranged; 2 is a side-opening door for opening and closing the opening of the heating chamber, which is pivotally supported on the left front side of the main body 1; 3 is a side-opening door for opening and closing the opening of the heating chamber; This is an operation panel provided on the right side of the main body 1 adjacent to the door 2. On the operation panel 3, a transparent filter (corresponding to a see-through section) 4 is provided on the upper side, and a rotary operation knob 5 is provided on the middle side. A drum 6 for indicating cooking contents is provided along the vertical direction, forming a panel structure. Note that 7 is a cooking time setting timer knob for setting the cooking time, and 8 is a cooking start switch for starting cooking.

Here, the drum 6 is constructed by molding a cylindrical tetrahedron from, for example, aluminum. Cooking information such as a cooking menu and cooking time is printed on each side of the drum 6. The drum 6 is rotatably supported using a drum shaft 9 provided at its upper and lower ends and bearings 10 provided on the upper and side inner surfaces of the operation panel 3. The movement of 6 is regulated from the top and bottom using a switch 12. The upper and lower support structures are the same, and the upper structure is shown in FIG.

To explain this support structure, 9 is the drum shaft mentioned earlier, 10 is the bearing part, and 12
is also a leaf spring. The drum shaft 9 has a recessed portion 1 that can be freely inserted into the end opening of the drum 6.
3, and a multifaceted shaft part 15 having a square cross section whose outer shape corresponds to the multifaceted shape of the drum 6 is integrally protruded from the center of the inner bottom surface of this recessed part 13. A rotary shaft portion 16 having a circular cross section is integrally arranged on the side. Note that the entire drum shaft 9 is integrally molded from resin. The drum shaft 9 is attached by fitting the concave portion 13 into the end of the drum 6. Further, the drum shaft 9 is set in advance such that the total length of the multifaceted shaft portion 15 and the rotating shaft portion 16 that are connected in series is set to be the same as or slightly smaller than the depth dimension of the recessed portion 13, and the multifaceted shaft portion 15 and the rotating shaft portion 16
The entire body is housed in the internal space of the drum 6. On the other hand, the bearing part 10 has a base plate 18 made of a steel plate.
In addition to forming a bearing hole 19 in the center of the substrate 18, ribs 20 are provided on the peripheral edges of two opposing sides in a direction perpendicular to the plate surface of the substrate 18, respectively. The bearing section 10 configured in this manner is supported on the upper inner surface of the operation panel 2 via the supporting piece section 10a continuous to the side thereof, and is kept in a horizontal state as a whole with the ribs 20, 20 facing downward. It is located in and,
The ribs 20, 20 of the bearing portion 10 are disposed in the recessed space of the recessed portion 13, and the rotating shaft portion 6 of the drum shaft 9 is rotatably fitted into the bearing hole 19, so that the entire drum 6 is is rotatably supported. On the other hand, the spring 12 is composed of a plate spring 12a processed into a U-shape. The plate spring 12a is attached so as to pass through between the ribs 20, 20, and the plate surface is attached to the polygonal shaft portion 1 as shown in FIG.
It is arranged so as to be in contact with one side of 5. However, the leaf spring 12a is arranged inside the drum 6.
Then, due to the elasticity of the leaf spring 12a, the multifaceted shaft portion 15
When one surface of becomes parallel to the leaf spring 12a,
The movement of the multi-faceted shaft part 15 can be regulated, thereby regulating the movement of the drum 6 in the rotational direction, so that each surface of the drum 6 on which cooking information has been applied is delivered to the filter 4 as desired. This allows them to face each other. Further, as shown in FIG. 2, a recess 21 is formed on each surface of the multifaceted shaft portion 15, and a protrusion 22 that can be freely engaged with and detached from the recess 21 is formed on the plate surface of the leaf spring 12a. , each side of the drum 6 can be positioned relative to the filter 4 without wobbling.

The drum 6, whose upper and lower ends are supported by such a support structure, is connected to the rotary operation knob 5 through a gear or a belt (not shown), and the drum 6 is rotated based on the rotation operation of the rotary operation knob 5. 6 can be rotated.

However, when trying to view cooking information using the panel structure 3 configured in this way,
First, rotate the rotation operation knob 5. Then, the drum 6 rotates in conjunction with this, and at the same time, the drum shafts 9, 9 above and below the drum 6 rotate. At this time, the drum shafts 9, 9 rotate while pressing the leaf spring 12a toward the front side at the corner of the multifaceted shaft portion 15. Then, at a place where one side of the drum 6 on which the cooking information is written faces the filter 4, one side of the multi-sided shaft part 15 becomes parallel to the plate surface of the leaf spring 12a, and at the same time, the surface part of the multi-sided shaft part 15 is formed The recessed portion 21 engages with the convex portion 22 of the leaf spring 12, thereby positioning and fixing the drum 6 at that position to prevent it from accidentally rotating. By repeating these operations until the desired cooking information is displayed, you will be able to see the required menu, cooking time, etc.

Here, it has been pointed out that conventionally, in such a panel structure 3, the distance A of a portion that is useless as a display becomes long.

However, according to this invention, the drum shaft 9 and the spring 12 are arranged inside the drum 6 as described above. This means that the bearing part 1
0 and the spring 12 are arranged below the upper end of the drum 6. In other words, the space required to support the drum 6 and the spring 1
The space necessary for installing the drum 2 is included within the drum 6 itself. In this way, the upper end of the drum 6 can be brought as close as possible to the upper end of the operation panel 3 and the distance A can be reduced to the minimum necessary dimension, and the overall length of the drum 6 and the transparent section 3 can be reduced by eliminating wasted space. The total length can be increased.

Therefore, the size of the drum 6 and the transparent part 4 can be effectively enlarged, and the design balance of the filter 4 can be improved, and at the same time, the characters and scales representing the cooking menu and cooking time can be enlarged. In addition to this, cooking information can be made easier to read by making it sparse. Furthermore, by adopting such a support structure also on the lower end side of the drum 6, the entire operation panel 3 can be effectively utilized. Furthermore, by forming uneven portions on each surface of the spring 12 and the multifaceted shaft portion 15 that engage and disengage with each other, each surface of the drum 6 can be positioned relative to the filter 3 accurately and without wobbling. There is also.

In the above-mentioned embodiment, the convex portion was formed on the leaf spring side and the recessed portion was formed on the polygonal shaft side, but conversely, as shown in FIG. 4, the recessed portion 21 was formed on the leaf spring side.
The convex portion 22 may be formed on the side of the multifaceted shaft portion.

Further, in the above-mentioned embodiment, this invention was applied to a microwave oven, but it is of course applicable to other cooking methods.

[Effect of idea]

As explained above, according to this invention, the space necessary to support the drum and the space necessary to install the spring can be included in the drum, and the end of the drum can be placed at the end of the operation panel. It is possible to reduce the unnecessary part that is useless as a display to the necessary minimum size by placing it as close as possible to the display part. Therefore, the total length of the drum and the total length of the transparent portion can be increased accordingly.

Therefore, the size of the drum and the transparent part can be effectively enlarged, and the design balance of the filter can be improved. At the same time, the characters and scales indicating the cooking menu and cooking time can be enlarged. This has the effect of making cooking information easier to read by making it more sparse.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of this invention. Figure 1 is a side sectional view showing the drum shaft and its surroundings, which is the main part of this invention, Figure 2 is a plan view thereof, and Figure 3 is a cooking FIG. 4 is a plan sectional view showing the area around the spring that regulates the drum in another embodiment of this invention, and FIGS. 5 and 6 show the panel structure of a conventional cooking device. , FIG. 5 is a side sectional view showing the area around the drum shaft, and FIG. 6 is a plan view showing the area around the spring that regulates the drum. 3...Operation panel, 4...Filter (transparent part), 6...Drum, 9...Drum shaft, 1
5... Multifaceted shaft part, 16... Rotating shaft part, 10... Bearing part, 12... Spring.

Claims (1)

[Claims for Utility Model Registration] (1) An operation panel on which a transparent part is formed, and a drum consisting of a polyhedron placed inside the transparent part of the operation panel and having cooking information on its outer surface;
a drum shaft which is provided at an end of the drum and is formed by connecting a multifaceted shaft part having a shape corresponding to the multifaceted shape of the drum and a rotating shaft part; and a bearing part which rotatably supports the rotating shaft part. , a spring disposed in close contact with the surface of the multifaceted shaft portion and positioning the drum with elastic force;
A panel structure for a cooking appliance, characterized in that the drum shaft and the spring are arranged inside the drum. (2) The panel structure of a cooking device according to claim 1, wherein each surface of the spring and the multifaceted shaft portion is provided with a concave and convex portion that engages and disengages with each other.