JPH0216163Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to gas stoves and other gas cookers.

(Prior Art) Conventionally, an annular gas burner having a vertical opening at the center and a plurality of flame ports on the outer periphery is located above the opening and is used for cooking pots and other cooking utensils placed on the burner. In addition to providing a heat sensitive element that comes into contact with the bottom surface,
A gas cooker equipped with a heat shield surrounding the heat sensitive body is known from Utility Model Application No. 188014/1983.

(Problems to be Solved by the Invention) However, in this device, as shown in FIG. The gap formed between the cooking utensil d and the heat shield a changes depending on the size of the cooking utensil d and other factors. Accordingly, the amount of combustion heat reaching the heat sensitive element changes, and the gap between the cooking utensil d and the heat shield a changes. There is an inconvenience that the heat-sensitive member cannot be activated only by a change in temperature.

(Means for solving the problem) The purpose of the present invention is to obtain a gas cooker that does not have such inconveniences, and has a vertical opening in the center and a large number of flame ports on the outer periphery. A heat sensitive element is provided on a post that is movable downward against a spring and is located above the opening of the annular gas burner and comes into contact with the bottom surface of a pot or other cooking utensil placed on the burner. In the case where a heat shield is provided around the outer periphery of the heat sensitive body, the heat shield is composed of a first heat shield and a second heat shield, which are installed dually inside and outside. A first heat shield is attached to the support such that the top surface of the first heat shield is lower than the top surface of the heat sensitive element, and a second heat shield is attached to the upper surface of the gas burner so that its top is lower than the first heat shield. It is provided so that it can always be located at a lower position than the top of the body.

(Example) In the drawings, 1 is an annular gas burner having a vertical opening 2 in the center and multiple flame ports 3 on the outer periphery, and 4 is a pot or other cooking utensil supported by a trivet claw 5 or the like and facing above the burner. The heat sensitive element 6 that comes into contact with the bottom surface of the cooking utensil A to detect the temperature of the cooking utensil A is a heat shield provided to surround the heat sensitive body 4, and the heat shield 6 is a support supporting the heat sensitive body 4. The first heat shield 6 provided on 7
a and a second heat shield 6b provided on the burner 1.

To explain this in more detail, the first heat shield 6a is composed of a relatively small cylindrical body that surrounds the heat sensitive body 4, and the top surface of the first heat shield 6a is connected to the heat sensitive body 4 fixed to the upper end of the support column 7.
It is attached via a plurality of continuous pieces 8 so as to be located below the top surface by a distance t shown in FIG. 3, and a ventilation gap is provided between the continuous pieces 8.

The second heat shield 6b has a relatively large diameter and a thick wall, and is attached to the top surface of the gas burner 1 with a ventilation gap between the second heat shield 6b and the top surface of the gas burner 1 using a plurality of pins 9 protruding from the bottom surface of the second heat shield 6b. It is constructed of a cylinder having a large heat capacity, that is, a large heat shielding effect, and is mounted so that its top surface is always lower than the top surface of the first heat shield 6a. As a means for this, as shown in FIG. Before the top surface of the heat shield 6a becomes lower than that of the second heat shield 6b, the protruding piece 8
By applying a to the bottom surface of cooking utensil A, or by
A stopper 21 is attached to the support column 7 as shown by the chain line in the figure, and when the first heat shield 6a is pushed down, the front stopper 20 is closed before the top surface of the first heat shield 6a becomes lower than the top surface of the second heat shield 6b. This is done by hitting the support plate 10 and preventing the pressing down.

In the illustrated example, a through hole 11 is provided in a support plate 10 that exposes the pillar 7 to the lower surface of the gas burner 1.
At the same time, the upper part of the rising plate 12 rising from the support plate 10 is inserted into the notch 14 of the parallel part 13 bent parallel to the support plate 10, and the support plate 10 and the parallel part 13 are connected to each other. Insert the plate piece 15 from the front side of the upright plate 12 so as to hold the support column 6 between them, and insert the cut and raised piece 16 at the tip of the plate piece 15 into the through hole 17 provided in the upright plate 12. By doing so, the support column 7 is supported so as to be movable up and down along these lines, and is also springed upward by the spring 18 placed on the parallel portion 13.

In the drawing, reference numeral 19 indicates a cover provided on the upper surface of the spring 18.

(effect) Next, the operation of this device will be explained.

Now, when placing a pot or other cooking utensil A on the trivet claw 5 to face the gas burner 1, the heat sensitive element 4 first hits the bottom of the cooking utensil A, and along with this, the support 7 that supports it It is also pushed down against the spring 18. Therefore, the first heat shield 6a provided on the support 7
The first heat shield 6 always moves downward accordingly.
A constant gap is always maintained between the top surface of the first heat shield 6a and the cooking utensil A, thereby creating an airflow passing above and below the first heat shield 6a, and further reducing the secondary radiation heat from the gas burner 1. is first shielded by the second heat shield plate 6b provided on the top surface of the gas burner 1, and furthermore, the first
This can also be blocked by the heat shield plate 6a.

Therefore, the heat sensitive body 4 is freed from changes caused by the hot combustion air, and can accurately sense the temperature of the cooking appliance A, and at a predetermined temperature, controls the gas valve and other control members (not shown) facing the gas supply path of the gas burner 1. It can be activated.

(Effect) As described above, according to the present invention, the heat shield surrounding the heat sensitive element is composed of a first heat shield and a second heat shield, which are installed twice inside and outside, and the first heat shield The heat shield is attached to a support supporting the heat sensitive body so that the top surface of the first heat shield is lower than the top surface of the heat sensitive body, and the second
A heat shield is provided on the upper surface of the gas burner so that its top is always lower than the top surface of the first heat shield, so most of the combustion hot air can be shielded by the second heat shield. , since the first heat shield provided on the support column can be miniaturized, it can be easily attached to the support that can be freely moved down, and the first heat shield is
Gas cooking eliminates the inconveniences seen in conventional methods because it can always move up and down in unison with the heat sensitive element to maintain a constant gap between the cooking utensils, and the influence of combustion hot air on the heat sensitive body can always be kept constant. The equipment is effective.

[Brief explanation of the drawing]

Fig. 1 is a cutaway side view of one example of implementing the present invention, Fig. 2
The figure is a perspective view of the second heat shield, Figure 3 is an enlarged cross-sectional side view of the first heat shield, Figure 4 is a slope view excluding the gas burner, and Figure 5 is a cross-sectional side view showing a conventional example. be. 1...Gas burner, 2...Opening, 3...flame port,
4... Heat sensitive body, 6... Heat shield, 6a... First heat shield, 6b... Second heat shield, 7... Support column.

Claims (1)

[Scope of utility model registration request] A heat sensitive element located above the opening of an annular gas burner having a vertical opening at the center and multiple flame ports on the outer periphery and abutting the bottom surface of a pot or other cooking utensil placed on the burner. is provided on a support that can freely move downward against a spring, and a heat shield is provided around the outer periphery of the heat sensitive body to surround the heat sensitive body, and the first heat shield is installed double-sidedly inside and outside. heat shield and second
The first heat shield is attached to the support such that the top surface of the first heat shield is lower than the top surface of the heat sensitive element, and the second heat shield is attached to the gas burner. A gas cooking appliance provided on an upper surface so that its top can always be located at a lower position than the top surface of a first heat shield.