JPH03176985A - Electric cooking stove - Google Patents

Abstract

PURPOSE:To obtain an electric cooking stove with excellent heat efficiency and good operability by supporting multiple sheath heaters molded into a nearly circular shape with a support member having springs vertically exciting the sheath heaters. CONSTITUTION:When a pan is put on sheath heaters 3, 4, 5, springs 6b exciting a support member 6 upward are shrunk by the weight of the pan, and the pan is mounted on the sheath heaters 3, 4, 5 at the position where the weight of the pan and the exciting force of the springs 6b are balanced while the sheath heaters 3, 4, 5 are kept in contact with the bottom of the pan in a wide area. The vertically movable range of the sheath heaters 3, 4, 5 is large, thus the sheath heaters 3, 4, 5 are kept in contact with the bottom of the pan in a wide area even if the bottom shape of the pan has large irregularities, the heat generated by the heaters 3, 4, 5 can be transferred to the pan, and efficient heating and cooking can be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a sheathed heater support structure for an electric cooker having a sheathed heater.

2. Description of the Related Art Conventionally, this type of electric cooker was developed, for example, in
As shown in Japanese Patent No. 740, the structure was as shown in FIGS. 5 and 6.

That is, the sheathed heater 101 is formed in a spiral shape and the object to be heated (2) is placed on the upper surface, and the sheathed heater 1
The sheathed heater 101 has a structure in which the spiral inner ring part of the sheathed heater 101 is formed in an upwardly convex shape, and includes a support member 102 that supports the spiral outer ring part of 01 from below and provides a gap between it and the spiral inner ring part. There is.

However, with such a structure, when a pot is placed as an object to be heated, if the bottom of the pot is uneven within the range of elastic deformation of the sheathed heater 101, the sheathed heater 101 will move the bottom of the pot. The area in contact with the sheathed heater 101 is large, and therefore the heat generated by the sheathed heater 101 is efficiently transferred.

However, the shape of the bottom of the pot is various, and the sheathed heater 101 generally uses a stainless steel pipe due to the necessity of heat resistance and durability. Therefore, the elastic deformation range of the sheathed heater 101 is small.
There was a problem in that the shape of the pot bottom was limited because the area of contact with the pot bottom was large. In addition, if the weight of the pot is light or if the pot has a convex bottom, the pot will be unstable when placed on the sheathed heater 101, which may make it difficult to use.

The present invention is intended to solve the above-mentioned problems, and its first object is to enable the sheathed heater to contact the bottom of the pot over a wide area and efficiently heat the bottom of the pot, regardless of the shape of the bottom of the pot. The second purpose is to improve stability and ease of use even with a light pot.

Means for Solving the Problems In order to achieve the above-mentioned first object, the present invention provides a sheathed heater support member with a spring that biases the sheathed heater upward.

Further, in order to achieve the second object, the present invention provides a pot stand for placing an object to be heated in the gap between a plurality of concentric and similar substantially circular sheathed heaters.

Effect The present invention has the above-described configuration, so that even if pots with various pot bottom shapes are placed on the sheathed heater, each sheathed heater moves up and down and contacts the pot bottom, and the sheathed heater contacts the pot bottom over a wide area. The object to be heated can be heated efficiently.

In addition, by supporting the object to be heated with a pot stand installed in the gap between the concentric, approximately circular sheathed heaters, the range of vertical movement of the sheathed heaters is reduced, allowing the sheathed heaters to be placed over a wide area on the bottoms of pots of various shapes. It can be brought into contact. Furthermore, the force of the spring that urges the sheathed heater up and down may also be small, allowing the sheathed heater to be moved up and down smoothly, and even light objects to be heated can be placed stably.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 4.

1 is a box-shaped main body having an opening on the top surface; 2 is the main body 1;
The saucers 3, 4.5 provided in the opening of the heater are sheathed heaters formed into a substantially circular shape and arranged concentrically above the saucer 2. Reference numeral 6 denotes a support member for supporting the sheathed heater 3.4.5, and the sheathed heater 3.4.5 is brought into contact with the heater receiver 6a, which has a concave shape downward and has an axis in the center of the concave shape. A hollow pipe-shaped heater receiver is attached to a spring 6b that biases the heater receiver 6a upward and a heater stand 6C fixed to the main body 1, and guides the heater receiver 6a in the vertical direction. The support member 6 is composed of an E-ring 6e fitted into the lower shaft of the heater receiver 6a so that the receiver 6a does not come off the heater receiver d. The support members 6 are provided at three locations on the heater stand 6C for each of the sheathed heaters 3+ 4+ 5. Reference numeral 7 denotes a pot stand, which is composed of a ring 7a on the top and a support rod 7b that supports the ring 7a, and the support rod 7b is fixed to the heater stand 6C.

The ring 7a is disposed in the gap between the sheathed heaters 3 and 4, and is set at a height within the movable range of the sheathed heaters 3 and 4.

Further, 8 is a pot which is an object to be heated having a pot bottom shape or a convex shape, and 9 is a pot which is a heated object having a pot bottom shape or a concave shape.

In the above configuration, the operation will be explained. Sheathed heater 3.
4. If pot 8 or pot 9 is placed on top of 5, pot 8 or pot 9
The spring 6b, which biases the support member 6 upward due to the weight of the pot, contracts, and the sheathed heaters 3 and 4. At a position where the biasing forces of the springs 6b are balanced, the pot is placed on the sheathed heater 34.5.

In this way, even if the vertical movable range of the sheathed heater 3.4.5 is wide and the unevenness of the pot bottom shape is large, the sheathed heater 3.
4.5 can be brought into contact with the bottom of the pot over a wide area, and the heat generated from the sheathed heaters 3 and 4.5 can be conducted to the pot 8 or 9, allowing efficient cooking. .

Next, by providing a pot stand 7 positioned at a height within the vertical movable range of the sheathed heaters 3, 4.5 in the gap between the sheathed heaters 3, 4.5, the sheathed heaters 3, 4.5. When the pot 8 or 9 is placed on the pot 5, the spring 6b of the support member 6 is compressed, and the bottom of the pot 8 or 9 comes into contact with the pot stand 7 and is supported. At this time, sheathed heater 3.4.
5 is pressed against the bottom of the pot 8 or pot 9 by a spring 6b and contacts the bottom of the pot over a wide area, and the biasing force of the spring 6b is small enough to bias each sheathed heater LJ l 415 upward. The sheathed heater often moves smoothly in the vertical direction. Further, the pot 8 or 9 is supported in a stable state by the pot stand 7, improving usability. Furthermore, by arranging the pot holder 7 in the gap between the sheathed heaters 3 and 4, even if the unevenness of the pot bottom varies greatly, the vertical movement distance of the sheathed heater 3.4.5 can be small, and the shape of the pot bottom can be adjusted. It has a wide range of applications and can be made compact.

Effects of the Invention As is clear from the above embodiments, according to the present invention, a plurality of substantially circularly shaped sheathed heaters are supported by a support member equipped with a spring that biases them upward. To provide an easy-to-use electric stove with excellent thermal efficiency, by which a sheathed heater can be brought into contact with the bottom of the pan over a wide area even in a pan with a pot bottom shape, and the heat generated from the sheathed heater can be efficiently transmitted to the pan. I can do it.

In addition, by providing a pot stand to support the pot in the gap between the sheathed heaters, the pot can be held stably, and the vertical movement of the sheathed heater is smooth.Furthermore, even if the movable range of the sheathed heater is small, the sheathed heater can be used even with large uneven pots. It can be pressed into contact with the bottom of the pot, providing a compact and easy-to-use electric stove.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of the main part of an electric stove according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of the main part when a pot with a convex bottom is placed on the dynamic electric stove, and Fig. 3 Figure 4 is a longitudinal sectional view of the main part when a pot with a concave bottom is placed on the electric stove, Figure 4 is a plan view of the electric stove, and Figure 5 is a diagram of the sheathed heater section of a conventional electric stove. The plan view and FIG. 6 are side views of a sheathed heater section of a conventional electric stove. 3... sheathed heater, 4... sheathed heater, 5... sheathed heater, 6... support member, 7... pot stand, ８・・・・・・Pot, 9
······pot.

Claims (2)

[Claims] (1) An electric stove in which a plurality of substantially circular sheathed heaters are arranged concentrically, and each of the sheathed heaters is supported by a support body equipped with a spring that urges upward. (2) The electric cooktop according to claim 1, comprising a pot stand for placing an object to be heated between the plurality of sheathed heaters.