JPS59191814A - Heating cooker - Google Patents

Abstract

PURPOSE:To prevent tarnishing of the transparent window of a temperature control scale part and to improve the quality of a commercial good, by constituting a device such that a temperature pointer, being operated in linkage with a temperature controller, is moved between a pair of elastic materials which are different in friction resistance against the temperature pointer. CONSTITUTION:A temperature pointer 11 made of a metallic wire is engaged with a sliding part 12, they are integrally formed by the use of adhesion, and the sliding part 12 is moved between a scale 10 and a transparent window 13 along the temperature scale 10 in linkage with a temperature controller. The temperature pointer 11 has an uneven surface at its base part, and is moved between a pair of elastic bodies 14 and 15 which have a film 16 of a resin formed on a surface where the elastic body 14 makes contact with the temperature pointer 11. This constitution causes enclosing of a space between the transparent window 13 and the temperature scale 10 without disturbing movement of the temperature pointer 11 and enables prevention of tarnishing of the transparent window 13.

Description

DETAILED DESCRIPTION OF THE INVENTION An object of the present invention is to relate to a temperature control device for a heating cooker, and to prevent a transparent window of a temperature control scale from becoming cloudy due to steam generated during heating of food. The purpose is to increase marketability. In conventional heating cookers,
In order to adjust the temperature of the heating chamber to the optimum temperature for the food and menu to be cooked, it is common to be equipped with a temperature control device to control the output of the heating element, and there is a temperature control device near this temperature control device. , there is a temperature scale in which the temperature indicator moves in conjunction with the temperature control device (one temperature indicator moves). The temperature control device is configured to work together using multiple pulleys, strings, and springs.

By the way, when food is placed in a heating chamber and cooked, as the food is heated by the heating device, water contained in the food turns into steam and comes out through various openings in the heating chamber. Some of this may even get into the temperature scale section of the operation panel mentioned above, causing the transparent window to become cloudy. In such a state, not only the temperature scale becomes difficult to see, but also the marketability of the product decreases. This clouding phenomenon is especially noticeable when the temperature is low, and ovens that circulate hot air inside the heating chamber are more likely to have air outside the heating chamber than convection ovens that have heaters installed above and below the heating chamber. The amount of leakage will increase.

This is thought to be because air pressurized by the hot air circulation fan flows inside the heating chamber and exits easily from the opening.

The present invention solves the problem of the temperature scale of the conventional operation panel being clouded, and can also increase the commercial value.

The present invention will be explained below using an example in which the present invention is implemented in a high-frequency heating device with a heater.

The cooking device main body 1 has a heating chamber for heating food, and is equipped with a high-frequency heating device that generates high-frequency waves in the heating chamber and a power source in order to heat the food using high-frequency waves, and the heating chamber is heated to a high temperature. Equipped with a heater to heat food. A door 2 is attached to the opening surface of the heating chamber so that it can be opened and closed freely.
An operation panel 3 is provided on the front of the four-book body 1. This operation panel 3 has a cooking selection button 4 for selecting and switching between high-frequency heating and heater heating. Select heating using a heater. 6.6 is a timer with two types of time limits, each of which is a circuit that operates individually or interlocks with each other. 7 is a cooking start button, and when this button is operated, an operation display rung 8 lights up and the heating of the food begins. A temperature control knob 9 is attached to the main shaft of the temperature control device and can adjust the temperature of the heating chamber.

The temperature sensing part of this temperature control device is installed near the heating chamber, and when the set temperature is reached, the power of the oven heater is controlled by the temperature control device. The operation panel 3 has a temperature scale table 10 for displaying the temperature of the heating chamber. The food name 10b of the dish is listed. When the knob 9 of the temperature control device is operated, the indicator needle 11, which is linked to the main shaft of the temperature control device and slides on the wall surface of the temperature scale table 10, displays the temperature of the heating chamber. The interlocking mechanism between the indicator needle 11 and the temperature adjustment device is composed of a plurality of pulleys of different sizes, threads, and springs.

In the temperature scale table 10 of the present invention, the display position of the food name 10b for typical oven cooking is made to correspond to the heating temperature during open cooking, and when setting the temperature, simply align the indicator needle with the food name. The temperature indicator needle 11, which can be set to a temperature for heating the food, is made of a metal wire, and its base is integrally formed with a resin sliding part 12 by fitting and adhesive. This sliding portion moves along the side wall of the temperature scale 1o in conjunction with the temperature adjustment device. The temperature indicator needle 11 is located between the transparent window 13 of the operation panel 3 and the temperature scale table 10, and the base of the temperature indicator needle 110 is formed by an elastic body 14 attached to the transparent window 13 side and an elastic body 14 attached to the temperature scale table 10 side. move between bodies 15; The surface of the elastic body 14, 15 that comes into contact with the temperature indicator needle 11 has an uneven surface cut by a knife. When the temperature indicator needle 11 moves between such uneven surfaces facing each other, the concave and convex parts engage, creating a large resistance force that causes the temperature indicator needle 11 to tilt and the operating force of the temperature control knob 9 to be reduced. Therefore, a thin film 16 made of a resin or metal material is provided on one side of the pair of elastic bodies 14.15, which is in contact with the temperature indicator needle 11 of 14 in the case of the embodiment. I try not to have direct contact with them. In the case of the embodiment of the present invention, the thickness is 26
When μ polyester or aluminum nap is used,
As shown in FIG. 4, it is known that no gap is formed around the temperature indicator needle 11, preventing steam from entering. Also, the elastic body 14.
15 is made of polyester-based polyurethane foam in the embodiment, but due to the structure of the present invention, the operation of the temperature indicator needle 11 is not hindered, and the operating force of the temperature control knob 9 is not heavy. The anti-fogging effect of the transparent window portion 13, which is the objective of the above, is sufficient. The material of the elastic bodies 14 and 15 has excellent wear resistance and heat resistance, and it is clear that other materials may be used without any problem as long as the above conditions are met. Furthermore, a non-bullet material 16 is interposed between the outer periphery (lower right/left side) of the temperature scale cover 10 other than the sliding side (in the case of the embodiment of the present invention, the upper side) of the temperature indicator needle 11 and the operation panel 3. As a result, air is completely isolated from the outside air on the inner surface of the transparent window section 13. That is, even if steam leaks from the heating chamber, it will not reach the transparent window section 13 and will not be exposed to the transparent window section 13.

As described above in the present invention, the temperature indicator needle is sandwiched between elastic materials, and the surface in contact with one temperature indicator needle has low frictional resistance and small surface irregularities.Polyester-1:
By providing a thin film made of resin or metal material such as bamboo aluminum, there is no resistance when the temperature indicator moves.
In addition, since the unevenness of the elastic body will not interlock with each other, the temperature indicator needle will not be tilted, the operating force for the temperature control knob will be reduced, and the abrasion resistance of the elastic body will be improved, making it easier to paint the temperature indicator needle. It can be seen that the effect of the present invention is very large because the wear resistance of the steel is also improved.

Of course, it is possible to prevent the transparent window of the temperature scale from becoming cloudy due to steam, which was the original purpose.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of a heating cooker showing an embodiment of the present invention, Fig. 2 is a front view of the temperature scale section of the main part, Fig. 3 is a longitudinal cross-sectional view of the same, and Fig. 4 is a cross-sectional view of the same. It is a diagram. 10--temperature scale cloth, 11--temperature indicator needle, 12--sliding part, 13--transparent window part, 14, 15--elastic body. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 1 Figure 3 Figure 4

Claims (3)

[Claims] (1) A heating chamber that stores the object to be heated in the main body, a heating device that increases the temperature inside the heating chamber, a temperature adjustment device that detects the temperature inside the heating chamber and controls the output of the heating device, and a temperature adjustment device has a temperature indicator needle that moves on a temperature scale in conjunction with the temperature indicator, the temperature indicator needle moves between a pair of opposing and contacting elastic materials, and the temperature indicator of the set of elastic materials A heating cooker characterized by having different frictional resistance on the surface that comes into contact with the needle. (2)1. [Claim 1] The heating cooker according to claim 1, wherein the surface of the elastic material in contact with the temperature indicator needle has a different surface roughness. (3) The heating cooker according to claim 1, wherein a resin source or a metal thin film is formed on one of the surfaces of the pair of elastic materials that come into contact with the temperature indicator needle.