JPS5835150Y2 - Pressure cooker - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pressure cooker, and particularly to a pressure cooker characterized by a mechanism for controlling air circulation.

The object of the present invention is to provide a pressure cooker in which the air pressure inside the pot can be easily adjusted by operating a lever provided on the lid.

Another object of the present invention is to provide a pressure cooker in which air circulation inside the pot is automatically shut off and supplied according to the opening/closing operation of the lid.

It is most important to keep a pressure cooker airtight so that steam during steaming does not leak outside, and for this purpose, an elastic backing is placed all around the inside of the lid that touches the opening edge of the pot body. It is common to wear it along the side.

However, when these backings were used, the better the adhesion, the more difficult it was to open the lid, and the lid could not be removed unless the inside of the pot was completely cooled.

Methods are known in which outside air is introduced into the pot using a valve formed in the lid when the internal pressure of the pot is high, but this method has the disadvantage of being complicated in structure and high in cost.

The present invention aims to eliminate these drawbacks, and by completing the invention described below, it has been able to completely achieve its purpose.

Embodiments of the present invention will be described below with reference to the drawings.

The pressure cooker of the present invention is composed of a combination of a pot body 1 and a lid 2.

The pot body 1 is made of aluminum alloy or other metal, and has locking flanges 11 protruding from the outer periphery of the opening at predetermined intervals.

Reference numerals 3 and 3 denote handles attached to the pot body 1, and one side of the grip plate is configured so that it can come into contact with the air circulation operating lever 4 attached to the side wall 23 of the lid 2.

The lid 2 is made of the same material as the pot body 1, and is formed into an inverted bowl or dish shape so that it can be attached to the pot body 1, and has a locking flange on the inner periphery of the pot body 1 at the lower end. 11...
- Locking pieces 21 to be engaged with 11 are bent at predetermined intervals, and a backing 22 is fitted above them along the periphery.

Reference numeral 4 denotes an air circulation operating lever that is slidably mounted in a sliding groove 24 provided in the side wall 23 of the lid 2, and a contact body 41 provided at the tip contacts the back surface of the backing 22.

As shown in FIGS. 4 and 5, a portion of the side wall 23 protrudes outward by the same length as the protruding length of the contact body 41, and the length of the sliding groove 24 is the same as that for locking. The length is the same as that of the flange 11.

Reference numeral 5 denotes a return spring for the air circulation operating lever 4, and one end is locked to the lever 4, and the other end is locked to the side wall 23 of the lid 2.

In addition, the handle 3 is shown with a part removed in the embodiment in FIGS. 1 and 2 so that the lever 4 comes into contact with the part, but the handle 3 is not limited to this and is shown in FIG. 4. Of course, it is also possible to simply contact the side surface of the handle 3 as shown by the dotted line in FIG.

Since the present invention has the above-mentioned structure, when applying the lid 2 to the pot body 1, the air circulation control lever 4 attached to the lid 2 is brought into contact with the side surface of the handle 3 attached to the pot body 1. Locking flange 11...11 and locking piece 21...
21, the air circulation operating lever 4 is pushed and moved from the position illustrated in FIG. 5 to the position illustrated in FIG. 4 as the lid 2 rotates.

As the lever 4 moves, the backing 22, which is released from contact with the contact body 41, returns to its normal state and blocks air flow, allowing it to function properly as a pressure cooker.

If you want to remove the lid 2 after cooking, rotate the lid in the opposite direction to release the contact between the side of the lid 2 and the air circulation control lever 4, and the lever 4 will release the return spring 5. Since it is returned to its original position by the contraction force, the contact body 41 at the tip of the air circulation operating lever 4 pushes the backing 22 forward as shown in FIG. Since the pressure is released to the outside, the internal pressure and the external pressure can be brought to the same pressure in a very short time, making it possible to open the lid 2.

In particular, in the present invention, a return spring 5 is attached to the air circulation operating lever 4, so that by simply releasing the contact between the lever and the handle 3, it is possible to return to the original position dynamically, unlike the conventional method. It is possible to completely omit forming a lever retaining part on a part of the handle, and there is no need to be particularly conscious of the air circulation operation.

Furthermore, since the structure is simple, there are almost no failures and the cost is low.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is an overall perspective view, Fig. 2 is an enlarged sectional view of the main part showing the state of engagement, and Fig. 3
4 is a cross-sectional plan view of the same figure as above, and FIG. 5 is a cross-sectional plan view of FIG. 4 showing the operation lever moved. 1... Pot body, 11... Flange, 2
...Lid, 21...Locking piece, 22...
...Backing, 23...Side wall, 24...
...Sliding groove, 3...Handle, 4...Air circulation operation lever 41...Contact body, 5...
···spring.

Claims (1)

[Scope of utility model registration request] The pot body 1 has a flange 11 formed on the outer periphery of the opening, and the flange 11 is formed on the inner periphery of the opening.
11 and the lid 2 formed with the locking pieces 21...21 that engage with the lid 2 are pressed together with the backing 22 interposed, the side wall 23 of the lid 2 is An air circulation operating lever 4 having a contact body 41 that presses the backing 22 at the tip is slidably attached so that it can be returned to its original position by the contraction force of a spring 5, and the side surface of the handle 3 attached to the pot body 1 is This pressure cooker is formed so as to be in contact with the operating lever 4, and the contact body 41 is configured to freely move in and out of the side wall 23 in accordance with the opening/closing operation of the lid 2.