JP2021019713A - Electric pressure cooker - Google Patents

Abstract

To provide an electric pressure cooker that allows a user to notice that a packing material is left unattached by having configuration in which the user cannot attach an inner lid to an outer lid when the user forgets attaching the packing material.SOLUTION: In an electric pressure cooker 100A including an outer lid, an inner lid 4, a holding jig 5 attachable/detachable to/from the inner lid 4 and holding the inner lid 4 to the outer lid, and a packing material 6 attachable/detachable to/from the inner lid 4, the holding jig 5 and the packing material 6 are connected to each other.SELECTED DRAWING: Figure 1

Description

The present invention relates to an electric pressure cooker having an outer lid, an inner lid, a holder that can be attached to and detached from the inner lid and holds the inner lid on the outer lid, and a packing that can be attached to and detached from the inner lid.

Increasing the boiling point of cooked rice promotes pregelatinization (gelatinization) of rice β-starch into delicious α-starch. Therefore, many pressure rice cookers that raise the pressure of the kettle to raise the boiling point to 100 degrees or more are on the market. In addition, since hard root vegetables, beans, meat, bones and other materials become soft when the pressure is increased, electric pressure cookers that can be used not only for cooking rice but also for other cooking are commercially available. In addition, the electric pressure cooker (including the pressure rice cooker) has a high sterilization effect because of its high temperature and high pressure. In addition, since steam gradually escapes from the pressure regulating valve in the electric pressure cooker, the same state is maintained even when heating is stopped, which saves power.

An electric pressure cooker having such an advantage has a packing for sealing the inner pot and the inner lid. Since this packing gets dirty with stickiness and steam, it is detachably attached to the inner lid so that the packing can be removed and washed. Therefore, after cleaning the packing, the user may inadvertently forget to attach the packing and turn on the power of the electric pressure cooker. Then, the above-mentioned problem that the desired pressure is not reached, the problem that the sticky substance and steam leak and become dirty, and the problem that the steam leaks and the pressure of the inner pot does not rise, so that the heater does not stop overheating and the fuse blows. May occur.
Therefore, Patent Document 1 and Patent Document 2 describe that the temperature change is monitored, and when the temperature change is different from the normal temperature change, an alarm is issued as an abnormality of the packing.

However, Patent Document 1 and Patent Document 2 cannot notify an abnormality of the packing unless the power is turned on. Therefore, Patent Document 3 describes that if the packing unit is forgotten to be attached, the lid unit cannot be locked and cannot be closed. As a result, it is possible to prevent the packing from being forgotten without turning on the power.

Japanese Unexamined Patent Publication No. 2004-248795 Japanese Patent No. 4989673 Japanese Patent No. 2976089

However, in Patent Document 3, it is not possible to wash only the packing, and the packing unit consisting of a stainless steel upper ring and a plastic lower ring that sandwich the packing and the packing with screws is washed completely, and between the packing and the upper ring and the lower ring. There was a hygiene problem that it was difficult to remove the dirt. Also, if you do not close the lid unit, you will not notice that you have forgotten the packing unit.

Therefore, the present invention provides an electric pressure cooker that promptly makes the user notice that the packing has been forgotten to be attached by making the inner lid for which the packing has been forgotten attached so that the inner lid cannot be attached even if the outer lid is to be attached. The purpose is.

In order to solve the above problems, the electric pressure cooker according to one aspect of the present invention includes an outer lid, an inner lid, and a holder that can be attached to and detached from the inner lid and holds the inner lid on the outer lid. An electric pressure cooker having a removable packing on the inner lid, characterized in that the holder and the packing are connected to each other.

Since the packing and the holder are connected, if the packing is forgotten to be attached to the inner lid, the holder cannot be attached to the inner lid, and the inner lid cannot be held by the outer lid. As a result, the user notices that the packing has been forgotten to be attached, and it is possible to prevent the electric pressure cooker from being turned on without attaching the packing.
Further, in the electric pressure cooker of the present invention, it is preferable that the connecting tool and the packing are connected by an arm.

As a result, the packing can be washed without removing the holder from the inner lid. If you forget to fit the packing, the packing will hang, so the user will notice that you forgot to fit the inner lid before attaching it to the outer lid.

A is an assembly perspective view showing a state in which the packing is fitted to the inner lid of the electric pressure cooker according to the first embodiment of the present invention, and B is an exploded perspective view of A. It is a cross-sectional view of II-II of FIG. 1A. A is an assembly perspective view showing a state in which the packing is fitted to the inner lid of the electric pressure cooker according to the second embodiment of the present invention, and B is an exploded perspective view of A. FIG. 3A is a sectional view taken along line IV to IV of FIG. 3A. It is an exploded perspective view which shows the whole structure of the conventional electric pressure cooker which is a basic type of this invention. A is an assembly perspective view showing a state in which the inner lid is fitted to the outer lid of the electric pressure cooker of FIG. 5, and B is an exploded perspective view of A. 6A is a cross-sectional view taken along the line VII to VII of FIG. 6A.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the embodiments and drawings, but the embodiments shown below are not intended to limit the present invention to those described herein. The invention can be equally applied to those with various modifications without departing from the technical idea shown in the claims. In each drawing used for the explanation in this specification, in order to make each member recognizable on the drawing, the scale is different for each member, and it is not always actual. It is not displayed in proportion to the dimensions of.

[First Embodiment]
First, the conventional electric pressure cooker 100, which is the basic type of the first embodiment, will be described with reference to FIGS. 5 to 7. 5 is an exploded perspective view, FIG. 6A is an assembled perspective view in which the inner lid 4 is attached to the outer lid 3, and FIG. 6B is an exploded perspective view of FIG. 6A. FIG. 7 is a cross-sectional view taken along the line VII to VII of FIG. 6A, and parts that are not the main parts (detailed configuration of the outer lid, reinforcing beads of the inner lid 4, etc.) are omitted in order to make the main parts of the present application easier to read. .. The electric pressure cooker 100 is a cooker capable of not only pressure cooking but also pressure cooking such as root vegetables, beans and meat, anhydrous cooking, steaming cooking, slow cooker and reheating.
As shown in FIG. 5, the conventional electric pressure cooker 100 includes a main body 1, an inner pot 2, an outer lid 3, an inner lid 4, a holder 5, and a packing 6.

The inner pot 2 is a pot containing cooking materials and is housed in the main body 1. The outer lid 3 is made of injection-molded synthetic resin on the outer side, sheet metal-processed aluminum on the inner side, and a metal shaft 31 is erected in the center. The inner lid 4 is made of sheet metal processed aluminum, and six deformation-preventing reinforcing beads 41 are formed radially, and 12 vents 42 through which steam passes are formed on the circumference.

The holder 5 is made of silicone rubber by injection molding and is flexible, and the groove 51 of the holder 5 is detachably attached to the central hole 43 of the inner lid 4. The packing 6 is also made of silicone rubber by injection molding and has flexibility, and is detachably attached to the peripheral edge 4a of the inner lid 4. Since the holder 5 and the packing 6 are easily soiled, and because the gap between them and the inner pot 2 is easily soiled, they are removable so that they can be washed as a whole. The central hole 43 of the inner lid 4 into which the holder 5 is inserted is hemmed to prevent injury, and the peripheral edge 4a of the inner lid 4 into which the packing 6 is inserted is to prevent the packing from being damaged and to prevent injury. It is curled.

The inner lid 4 into which the holder 5 and the packing 6 are fitted is held by the outer lid 3 when the holder 5 is press-fitted into the shaft 31 of the outer lid 3. Therefore, the tip 31a of the shaft 31 is thickened, and the holder 5 is formed with a rib 52 for preventing the shaft 31 from coming off. Then, even if the inner lid 4 is lowered, the inner lid 4 does not fall from the outer lid 3. Further, the holder 5 also serves as a knob when the inner lid 4 is held by the outer lid 3, and the tip 5a thereof is thickened so as not to easily fall even if pinched.

The outer lid 3 on which the inner lid 4 is held is placed on the main body 1 and rotated horizontally so that the outer lid 3 is firmly attached to the main body 1. During this rotation, the six protrusions 11 of the main body 1 (see FIG. 5) and the six protrusions 32 of the outer lid 3 (see FIG. 5) engage with each other. Compared to the mechanism that opens and closes with a shaft and locks at one place, the conventional electric pressure cooker 100, which is the basic type of the first embodiment, has a mechanism that locks at six places around it, so it has a simple configuration. Can withstand higher pressure. Although detailed description is omitted, the outer lid 3 is provided with a handle, a lock mechanism for opening and closing the outer lid 3, a pressure adjusting mechanism, and the like. The conventional electric pressure cooker 100 has a disadvantage that the inner lid 4 can be attached to the outer lid 3 if the holder 5 is attached to the inner lid 4 even if the user forgets to attach the packing 6.

Next, the configuration of the main part of the electric pressure cooker 100A according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. In the electric pressure cooker 100A of the first embodiment, the same reference numerals are given to parts having the same configuration as the conventional electric pressure cooker 100, and detailed description thereof will be omitted. FIG. 1A is an assembled perspective view, and FIG. 1B is an exploded perspective view. FIG. 2 is a cross-sectional view taken along the line II to II of FIG. 1A, and the reinforcing bead 41, which is not the main part, is omitted in order to make the main part of the present application easier to read.

As shown in FIGS. 1 and 2, the packing 6 is connected to the holder 5 by six ribs 7 extending radially from the holder 5. The holder 5, the packing 6, and the six ribs 7 are integrally molded as the holder / packing 8.

Since the holder 5 and the packing 6 are directly connected in this way, if the user forgets to attach the packing 6 to the inner lid 4, the holder 5 cannot be attached to the inner lid 4, so the inner lid 4 is attached. It cannot be held on the outer lid 3. As a result, the user surely notices that the packing 6 has been forgotten to be attached, so that it is possible to prevent the electric pressure cooker 100A from being turned on without attaching the packing 6.

In the present embodiment, the number of ribs 7 connected to the holder 5 and the packing 6 is 6, but the number is not limited to 6, and the number may be large or small. Absent.

[Second Embodiment]
Next, the configuration of the electric pressure cooker 100B of the second embodiment will be described with reference to FIGS. 3 and 4. In the electric pressure cooker 100B of the second embodiment, the same reference numerals are given to the parts having the same configuration as the conventional electric pressure cooker 100, detailed description thereof is omitted, and the same names having different configurations are omitted. For the part, the subscript "B" is added to the reference code. FIG. 3A is an assembled perspective view, and FIG. 3B is an exploded perspective view. FIG. 4 is a sectional view taken along line IV to IV of FIG. 3A, and the reinforcing bead 41, which is not the main part, is omitted in order to make the main part of the present application easier to read.

As shown in FIGS. 3 and 4, the extending portion 53 extends from the holder 5B, the extending portion 61 extends from the packing 6B, and the extending portion 53 and the packing 6B of the holder 5B extend. The extending portion 61 is connected by one arm 9. The arm 9 is formed separately from the holder 5B and the packing 6B. Further, the arm 9 is made of a flexible material such as silicon rubber, and as shown in FIG. 4, the arrow-shaped locking convex portions 91 provided at both ends of the arm 9 are formed on the extending portion 53 of the holder 5B. The engagement hole 54 is connected by press-fitting into the engagement hole 62 of the extending portion 61 of the packing 6B. This connection is a strong connection so that it will not be disconnected by the user.

In this way, the electric pressure cooker 100B of the second embodiment is also connected to the holder 5B and the packing 6B in the same manner as the electric pressure cooker 100A of the first embodiment, so that the user does not forget to attach the packing 6B. can do. Further, since the arm 9 connecting the holder 5B and the packing 6B is made of a flexible material and is as few as one, the user can attach the packing 6B from the inner lid 4 even with the holder 5B attached to the inner lid 4. It can also be removed and washed. That is, the packing 6B can be washed while hanging from the inner lid 4. Therefore, the dirt can be easily removed, and since the inner lid 4, the holder 5B, and the packing 6B are still connected, it is possible to prevent forgetting to attach the packing 6B.

In the present embodiment, the holder 5B and the packing 6B are connected by using a separate arm 9, but the holder 5 and the packing 6 as in the first embodiment are integrally molded by one rib 7. It may be configured to be connected. Further, the arm 9 for connecting the holder 5B and the packing 6B is not limited to the silicon rubber of the embodiment, and an elastic body made of another material, a string, or the like made of a flexible material should be adopted. Can be done. Further, the present invention can be applied not only to an electric pressure cooker but also to an electric rice cooker having packing.

100: Electric pressure cooker 1: Main body 2: Inner pot 3: Outer lid 31: Shaft 4: Inner lid 4a: Peripheral 5, 5B: Holder 6, 6B: Packing 7: Rib 8: Packing / holder 9: Arm

Claims (2)

In an electric pressure cooker having an outer lid, an inner lid, a holder that can be attached to and detached from the inner lid and holds the inner lid on the outer lid, and a packing that can be attached to and detached from the inner lid.
An electric pressure cooker characterized in that the holder and the packing are connected to each other. The electric pressure cooker according to claim 1, wherein the connecting tool and the packing are connected by an arm.