JPS6018112A - Rice cooker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a rice cooker used in general households.

Conventional Structure and Problems Conventionally, in this type of rice cooker, as shown in FIG. A heat sensing element 5 was provided in the through hole 3 to protrude and come into contact with the inner pot 4.

This heat sensing element 5 is supported by a mounting base 6.

Generally, it was fixed to an appropriate position on the bottom surface of the outer pot 2 with screws or the like. Note that 7 is a heat insulating material such as glass fiber. However, with this configuration, when it becomes necessary to replace the heat sensing element 5, it is necessary to turn over the main body 1, remove the screws, remove the mounting base 6, and replace the heat sensing element 6. Because of this, it was often inconvenient to have to turn the heavy main body 1 upside down. However, when keeping rice warm, the heat sensing element 5 has a fixed position in contact with the inner pot 4 based on experience. The length from which the heat sensing element 5 touches the inner pot 4 was varied depending on the rice cooker of each container.

For this reason, various conventional answer totals 1, for example, 0.61 cooking, 1
．． 0g cooking, 1.6 servings, 1.84 cooking + 2'3 (l cooking.

3.64 mm...6.44 mm There are many types with different lengths, and there is a mistake in mold production, inspection, or about 11. Torii” stand 6
There were various problems such as assembly.

In addition, an electric rice cooker (hereinafter referred to as a jar rice cooker) that also serves as a heat insulator
In this case, since the heat insulating paulownia 7 is provided on the outside of the outer pot 2, the heat insulating material does not come into close contact with the outer pot 2 due to the mounting base 6.
This was disadvantageous for heat retention.

This is because the insulation material 7 is made of glass fiber, and it is well known that the insulation effect improves depending on the amount of air contained in this glass fiber, but the insulation material on the mounting base 6 is thin. This was because the insulation effect would deteriorate.

As described above, there are various problems in attaching the mounting base 6 to the bottom surface of the outer pot 2 using screws or the like.

Purpose of the Invention The present invention solves these conventional problems, prevents incorrect insertion when assembling the mounting base, reduces various procedures from ordering one part to inspection, and makes mold production easier and easier. To provide a rice cooker that is designed to be easily assembled and to improve heat retention performance.

Structure of the Invention The rice cooker of the present invention has a mounting base on which a heat sensing element is fixed, which is fixed to the side surface of an outer pot using rivets.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 2 to 4, 8 is a negative characteristic thermistor that senses heat, and is insulated and protected by a heat-resistant tube 11 made of fluorocarbon resin or the like. This negative characteristic thermistor 8 is connected to a sensor retainer 9 between the connector 12 and the sensor mounting LJ plate 10.
It is supported on the inner surface side of the connector 12 via. The connector 12 contacts the outer periphery of the inner pot 4 and conducts the heat of the food to be heated, such as rice water, in the inner pot 4 to the negative characteristic thermistor 8. Reference numeral 13 denotes a mounting base for fixing the sensor mounting plate 10 to the outer surface of the outer pot 2, which is made of resin or the like with poor heat conduction to prevent heat conduction from the sensor mounting plate 10 to the outer pot 2. .14
1 is a protrusion provided on the mounting base 13, 15 is a through hole provided on the mounting base 13, and 16 is a through hole provided on the g111 wall of the outer pot 2.
4 is inserted. A through hole 17 is provided in the side wall of the outer pot 2 and communicates with the through hole 16. 18 is the protrusion 1 of the connector 12
It is a through hole into which 9 is fitted, and is provided in the side wall of the outer pot 2. 2
o is a rivet that is inserted into the through holes 17 and 15, and has a cylindrical shape with two steps of large and small diameters, with the tip 22 on the small diameter side and the tip 22 on the small diameter side.
By pushing in the push rod 21, the protrusion 23 provided on the inner surface of the tip 22 allows the four-divided portion to expand outward as shown in FIG. Ru.

Therefore, the sensor mounting plate 10 and the mounting base 13 are
0 and is fixed to the outer pot 2.

Therefore, depending on the capacity of the rice cooker, the through hole 16.1 of the outer pot 2
If 7.18 is determined, sensor mounting plate 10 and mounting base 1
3 is the same type of parts and can be used with all models.

Further, there is no need to reverse the rice cooker body and remove the screws as in the conventional case, and the mounting plate 10 provided with the negative characteristic thermistor 8 can be removed by pulling out the push rod 21.

Also, regular rice cookers do not have this.

In the case of a jar rice cooker, only the sensor attachment part of the heat insulating material 7 provided is removed from the outer pot 2, so the heat insulation effect can be used more effectively than in the conventional case.

Note that by forming the rivet 2o with resin, heat conduction can be reduced, leading to improvement in heat retention performance.

Effects of the Invention As described above, the rice cooker of the present invention has a simple structure because the heat sensing element is attached to the outer pot by the mounting laribet, and the heat sensing element corresponding to the capacity of the rice cooker can be mounted. It can be easily installed, eliminates erroneous work during assembly, and improves heat retention performance.

[Brief explanation of drawings]

Figure 1 is a cross-sectional side view of the main parts of a conventional rice cooker.
Fig. 2 is an exploded perspective view of a heat sensitive part in an embodiment of the rice cooker of the present invention, Fig. 3 is a perspective view of the heat sensitive part, Fig. 4 is an exploded perspective view of the main parts of the rice cooker, and Fig. 6 is an exploded perspective view of the heat sensitive part of the rice cooker of the present invention. Cross-sectional view of the heat-sensitive part, No. 6
The figure is a cross-sectional side view of the main parts of the rice cooker. 2...Outer pot +8...Negative characteristic thermistor, 13...Mounting base, 20...Rivet. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 21/ Figure 3 Figure 4 '2f Figure 5

Claims (1)

[Claims] (1) A rice cooker consisting of a mounting base with a heat sensing element fixed to the side of an outer pot using rivets. (b) The rice cooker according to claim 1, wherein the rivets are made of resin.