JPS58121926A - Pressure 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 The present invention relates to a pressure cooker, and an object of the present invention is to provide a pressure cooker that can seal a pot and a lid with a simple structure and by simple operation.

In a conventional pressure cooker, a notch is formed in the upper end flange of the pot, and a notch is also formed in the outer periphery flange of the lid, and the upper end flange and the outer periphery flange are engaged by horizontally rotating the lid. , a sealed container was obtained by so-called bayonet engagement. However, this conventional pressure cooker has notches formed on both flanges, making the shape complicated, making it difficult to clean, and also making it difficult to clean the pot and the lid when in use. It is necessary to adjust the position, etc.
The present invention solves the above-mentioned drawbacks of the conventional pressure cooker by clamping the flange at the upper end of the pot and the 7-rank part on the outer periphery of the lid to obtain a sealed container. Embodiments of the present invention will be described below with reference to the accompanying drawings.

In the figure, 1 is an outer main body, and an inner main body 3 is provided inside with a heat insulating material 2 interposed therebetween, and these constitute the main body. 4 is a heating element disposed at the bottom of the main body, and 5 is removably placed on the heating element 4. A pot flange portion 6 is formed at the upper end of the pot 6, and a backing 7 is placed on the pot flange portion 6. Reference numeral 8 denotes an outer lid that covers the main body, and is pivotally supported at the upper part of one side of the main body. A lid 9 is attached to the lower surface of the outer lid 8 and covers the upper opening of the pot 6. A lid flange portion 1o is formed on the outer periphery of the lid 9. The lid flange portion 1o is placed on the pot flange portion via the backing 7. 11
Reference numeral 12 indicates a heating element provided at the inner lower part of the outer lid 8, and an upper heating element 12 provided at the upper part of the inner body 3. Reference numeral 13 denotes a pair of clamping tools having a U-shaped cross section and an arc shape, to which a handle 14 for operation is fixed.

This clamping tool 13 slides on a horizontal portion 32L formed at the upper end of the inner body 3, and clamps the pot flange portion 6 and the lid flange portion 1o which are overlapped with each other via the backing 7. 15 is a pressure valve provided on the lid 9, which keeps the pressure inside the pot constant.

In the above configuration, when the clamping tool 13 is pushed toward the center, the clamping tool 13 clamps the pot flange part 6 and the lid flange part 10 which are overlapped with each other with the backing 7 in between. After that, when the heating element 4 is energized and the pressure inside the pot increases, the lid 9 will be slightly lifted, but the backing 7 will be exposed to the inner surface of the lid 9 and the pot 6.
Since it comes into pressure contact with the inner surface, airtightness is maintained. In this embodiment, as shown in the figure, the outer peripheral end of the pot flange portion 6 is bent downward to form the adjustment stop portion 6a, and the outer peripheral end of the lid flange portion 1° is bent upward to form the lid stop. A locking portion 10 & is formed by bending the inner circumferential ends of two horizontal surfaces of a clamping tool 13 having a U-shaped cross section in directions facing each other, and a locking portion 13& is formed.
When the lid is slightly lifted due to an increase in the pressure inside the pot, the locking part 6a and the lid locking part 10& engage with the locking part 10a, so the clamping tool 13 does not come off and the airtightness inside the pot is maintained reliably. be able to.

When opening the lid 9, the clamping tool 13 is pulled out and separated from both the flanges 6 and 1o.
The engagement between the lid locking portion 10& and the locking portion 13& must be released. In other words, the engagement is released and the clamping tool 13 can be removed only when the pressure inside the pot decreases and the lid 9 is lowered, so the clamping tool 13 will not come off when the pressure inside the pot is high, making it safe. It is.

In addition, as shown in FIGS. 5 and 6, a pair of clamping tools 13y1
A pair of arc-shaped connectors 16 with a U-shaped cross section are provided between the
An elongated hole 1a is formed on one side, and a protrusion 18 that engages with the elongated hole 17 is formed on the other side, so that when the clamping tool 13 is inserted and removed, it can be connected in conjunction with the clamping tool 13. By moving the tool 16, both flange parts 6, 10 are also connected by this connecting tool 16.
These clamping tools 13. Connector 1
The flange portions 6 and 1o can be clamped over substantially the entire periphery of the flange portions 6 and 1o, thereby ensuring airtightness within the pot.

As is clear from the above description, according to the present invention, the pot flange portion and the lid flange portion overlapped with each other via the backing are held by the holding tool that slides on the horizontal portion of the upper end of the main body, so that the operation is easy. Not only is it simple, but the flange has a cutout that makes it easy to clean.
Its industrial value is that of a dog.

[Brief explanation of the drawing]

Fig. 1 is a front sectional view of a pressure cooker showing an embodiment of the present invention, Fig. 2 is a side sectional view of the same, and Figs. 3 and 3 are plan views of the pressure cooker with the outer lid and lid removed. , FIG. 4 is a partially sectional perspective view of the clamping tool of the pressure cooker, and FIG. 5 is a plan view of the pressure cooker showing another embodiment of the present invention with the outer lid and the lid removed. FIG. 6 is a perspective view of the main parts of the pressure cooker. 3...Inner body, 31L...Horizontal part, 5
...Pot, 6...Pot flange part, 7...
... Backing, 9 ... Lid, 1o ...
- Lid flange part, 13... Clamping tool. Name of agent: Patent attorney Toshio Nakao and 1 other person 1st
Figure 2 Figure 1.5 3rd TI! J Figure 4/3 5 Figure 6

Claims (1)

[Claims] A main body having a horizontal portion at the upper end, a pot housed in the main body and having a pot flange portion formed at the top end, a backing placed on the pot, and a pot flange portion covering the pot and forming the pot flange portion at the outer periphery. A pressure cooker comprising: a lid; and a clamping tool that slides on a horizontal portion of the main body to clamp the pot flange portion and the lid flange portion.