JPH0718331Y2 - Inner lid packing of rice cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to, for example, an inner lid packing that holds an inner lid on the lower surface of the outer lid of a rice cooker, and more specifically, an inner lid that is held by the inner lid packing. The present invention relates to an inner lid packing of a rice cooker that can be properly attached to an inner pot.

(B) Conventional technology Conventionally, the inner lid packing is formed in a bowl shape, and has a locking hole at the center of the lower end, a mounting groove for mounting the inner lid on the outer periphery thereof, and a bowl-shaped upper end. Each of the circular pressure contact end faces was flush with each other.

In such an inner lid packing, as shown in FIG. 4, the inner lid 8 is preliminarily mounted in the mounting groove 14 of the inner lid packing 11, and the pressure contact end surface 15 of the bowl-shaped upper end is directed upward, The inner lid 8 is attached to the outer lid 7 by piercing the locking hole 13 into a support protrusion 12 vertically provided at the center of the rear surface of the outer lid 7 for mounting the inner lid 8.

(C) Problems to be solved by the invention However, when the inner edge of the press contact end surface that press-contacts the back surface of the outer lid is flush as described above, when the inner lid packing is pressed through the support projections. In addition, there is a problem that the inside of the inner lid packing becomes airtight and an elastic force cannot be obtained.

In view of the above-mentioned problems, the present invention has an object to provide a rice cooker that can cook delicious rice by pressing the inner lid with an appropriate elastic force by the inner lid packing.

(D) Means for solving the problem In this invention, a central locking hole of the inner lid packing formed in a bowl shape is inserted into a support protrusion vertically provided at the center of the rear surface of the outer lid of the rice cooker, A rice cooker in which the upper end of the inner lid packing is pressed against the back surface of the outer lid to attach the inner lid to the outer lid, and the inner edge of the inner lid packing formed in the bowl shape is pressed to the outer surface of the edge of the pressure contact end surface. It is characterized in that it is an inner lid packing of a rice cooker in which an appropriate number of air passage forming projections protruding outward are formed.

(E) Action The inner lid packing of the rice cooker according to the present invention is such that when the inner lid packing is pressed against the back surface of the outer lid, the above-mentioned pressure contact end surface abuts against the back surface of the outer lid and is further pressed. The middle body bulges outward, the pressure contact end surface is bent inward, and the ventilation path forming projection abuts the back surface of the outer lid to form a ventilation path with the pressure contact end surface.

(F) Effects of the Invention As described above, according to this invention, since the air passage forming projection is formed on the outer surface of the pressure contact end surface of the mouth edge, even if the inner lid packing is pressed, the inside of the packing will be protected by the above projection. Degassed,
Due to the elastic force of the packing itself, there is no gap between the inner lid and the inner hook, and the packing can be reliably closed. For this reason, it is possible to provide a rice cooker that can cook delicious rice, without causing poor rice cooking.

Further, since the existing outer and inner lids can be used, it is advantageous that there is no need to newly create a mold, especially when the back side of the outer lid is formed of synthetic resin.

(G) Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

The drawing shows a jar rice cooker and an inner lid packing that holds the inner lid to the outer lid. The jar rice cooker 1 in FIG.
And an outer pot 4 having a heat generating function, which is inserted into the inner surface of the main body container 3, and an inner pot 5 which is inserted into the outer pot 4, at the lower part, and at the upper part, the above-mentioned It is pivotally attached to the body container 3. The outer lid 7 is built in via the heat insulating material 6, and the inner lid 8 is integrally attached to the back surface of the outer lid 7.

A circular steam outlet 9 is opened on one side of the outer lid 7 described above, and an inner lid attached to the back surface of the outer lid 7 so that the cylindrical steam outlet 10 is located inside the steam outlet 9. It is fixed to 8 integrally. That is, the steam generated in the inner kettle 5 takes only the route through which it passes through the above-mentioned steam port 10 fixed to the inner kettle 8 to the steam outlet 9 formed in the outer lid 7.

The above-mentioned inner lid packing 11 has the above-mentioned inner lid 8 at its lower portion.
2 is integrally mounted, and is inserted into a support protrusion 12 vertically provided at the center of the rear surface of the outer lid 7, so that the inner lid 8 can be attached to the outer lid 7 as shown in FIG. The shape is made of silicon rubber.

That is, the inner lid packing 11 is formed in a bowl shape, and a locking hole 13 is formed in the center of the lower step portion of the inner lid packing 11 so as to be inserted into the support projection 12 described above. Has
Form a U-shaped mounting groove 14 facing outward and attach the mounting groove 14
The inner lid 8 described above is attached and held integrally.

In addition, the outer edge portion of the pressure contact end surface 15 of the bowl-shaped upper end, that is, the upper end portion of the outer peripheral surface of the outer wall forming the inner lid packing 11,
Four ventilation path forming protrusions 16 ... Protruding outward are formed at equal intervals.

In the inner lid packing 11 thus formed, first, as shown in FIG. 3 (a), with the pressure contact end face 16 facing upward, the engaging hole 13 is formed in the support protrusion 12 on the rear face of the outer lid 7. Pierce,
The support projection 13 is locked to the head 14 which is slightly larger than the lower end.

Then, when the outer lid 7 is closed, the inner lid 8 is pressed by the upper edge of the inner pot 5, and as shown in FIG. 3 (b), when the abutting pressure contact end surface 15 is further pressed, the middle body portion is moved in the left-right direction. Bulge and the pressure contact end surface is inwardly bent, and the air passage formation projection
16 abuts on the back surface of the outer lid 7 instead of the pressure contact end surface 15, forms an air passage 17 between the pressure contact end surface 15, and the air in the inner lid packing 11 flows out to the outside.

Therefore, the inner lid packing 11 presses the inner lid 8 by its own elastic force when the outer lid 7 is closed, and there is no gap between the inner pot 5 and the inner lid 8, and good rice cooking can be performed.

Also, the above effect can be obtained by only selecting the inner lid packing,
The outer lid and the inner lid also have the effect that existing ones can be used.

In the above embodiment, the protrusion 16 is provided on the inner lid packing 11, but it is also possible to use a protrusion in the vertical direction.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, FIG. 1 is a partially cutaway sectional view of a main part of a rice cooker, FIG. 2 is a perspective view showing an inner lid packing, and FIG. (a) shows the state before inserting the inner lid packing into the outer lid, (b) shows an enlarged cross-sectional view showing the pressed state of the inner lid packing when the outer lid is closed, and FIG. It is a cutaway sectional view. DESCRIPTION OF SYMBOLS 1 ... Jar rice cooker, 7 ... Outer lid 8 ... Inner lid, 11 ... Inner lid packing 12 ... Support protrusion, 13 ... Locking hole 15 ... Pressure contact end surface, 16 ... Vent passage forming protrusion 17 ... Vent passage

Claims (1)

[Scope of utility model registration request] 1. A center projection hole of the inner lid packing formed in a bowl shape is inserted into a support projection vertically provided at the center of the back surface of the outer lid of the rice cooker, and the upper end portion of the inner lid packing is attached to the outside of the outer lid. A rice cooker in which the inner lid is attached to the outer lid by pressing it against the back surface of the lid, and an air passage forming projection protruding outward is provided on the outer surface of the mouth edge of the pressure contact end surface of the upper end of the inner lid packing formed in the bowl shape. Inner lid packing of the rice cooker that is formed appropriately.