JPS6141205B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pressure cooker, such as a pressure jar rice cooker, a pressure rice cooker, and a pressure rice cooker, which are equipped with full-scale pressure cooking and long-term heat retention functions.

Conventionally, the shape of the rotation stopper provided on the pot for regulating the position of the lid and for draining water is as shown in Fig. 7.
An aperture 23a is formed in the upper outer wall of the pot, and a fixing part 21b having an L-shaped cross section and having a protrusion 21a in contact with the lower surface of the aperture 23a on the upper part is fixed to the pot, and both sides of the aperture 23a are fixed. The rib 21c in contact with the outer wall was provided to the lower part of the fixed part 21b to form a drainage channel, but in this case, the opening part 23a was small and had the disadvantage that it was difficult to drain highly viscous substances such as slime. . On the other hand, if the opening 23a were made into a notch, the edges of the corners could injure fingers and the like. Furthermore, if the height of the upper outer lid of the pot is increased to widen the opening 23a, the material costs for the pot and pot packing will increase, and furthermore, it will be necessary to regulate the dimensions of each part close to the fitting part. Not only that, but the overall size of the product also increased.

The present invention solves the above-mentioned conventional drawbacks by using a rotation stopper integrally formed with a communicating portion that covers the upper surface of the notch.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A pressure jar rice cooker capable of keeping warm for a long time, which is an embodiment of the present invention, will be described below with reference to the accompanying drawings.

In Figures 1 to 6, 1 is a protective frame with a rice cooking heater (not shown) attached to its inner bottom, and a notch 1a is provided in the upper flange of this protective frame 1, and a notch 1a is provided in the upper outer part of the protective frame 1. is the insulation heater 2 for keeping warm.
Equipped with Reference numeral 3 denotes an upper frame made of a ring-shaped resin material having a hook part at one end and a hinge part integrally formed at the other end, and this upper frame 3 is provided with a groove serving as a drainage channel around the entire circumference at the upper part of the outer periphery. , one notch 3a communicating with this groove is provided, and further this notch 3a
A protection frame 1 is attached to the upper part of the inner periphery so that the protection frame cutout 1a and the protection frame notch 1a coincide with each other, and a body 4 constituting the outer shell of the main body is fitted to the lower part of the outer periphery. 5 is an outer lid made of resin material with a handle part molded integrally,
The support part that fits with the hinge part of the upper frame 3 is connected to the hinge shaft 6.
A hook lever 8 is attached to the other end with a hook button 7 fixed thereto, and is engaged with the hook portion of the upper frame 3 to lock the entire lid body.

Reference numeral 9 denotes a heat dissipation plate constituting the lower surface of the lid, a lid heater 10 for heat retention is attached to the upper surface, and a flexible holder packing 11 having a substantially bowl shape is inserted into the central through hole. By sandwiching it between the outer cover 5 and this heat sink 9, it is prevented from coming off. 1
Reference numeral 2 denotes a pot with a bottom that is removably placed on the rice cooking heater attached to the inner bottom of the protective frame 1.
is a notch 12c in the outer wall of the upper fitting part that communicates with the upper surface.
There is one location. Reference numeral 22 denotes a supporting metal fitting having an L-shaped cross section, and is attached by a rivet 24 to the lower surface of the fitting where the notch 12c of the pot 12 is located. 2
Reference numeral 5 denotes a rotation stopper made of a resin material with excellent heat resistance, and this rotation stopper 25 is attached to the pot notch 12c.
Cross section L with a protrusion 25a in contact with the lower surface of the upper part
Ribs 25c that are in contact with both outer walls of the pan notch 12a are provided in the letter-shaped fixing part 25b up to the bottom of the fixing part 25b to form a drainage channel 25f, and a connecting part 25d that covers the top surface of the pot notch 12c is provided. An opening 25e is formed integrally with the ribs 25c at both ends and is provided between the protrusion 25a of the fixing portion 25b. This rotation stopper 25 is fixed to the support metal fitting 22, and is inserted into cutouts 1a and 3a provided in the protective frame 1 and the upper frame 3 to regulate the position of the pot 12. Then, the soot, etc. overflowing from the fitting part of the pot 12 is discharged to the outside from the pot notch 12c, but in this case, the soot, etc. passes through the opening 25e of the rotation stopper 25,
It is guided to the notch 3a of the upper frame 3 through the drainage channel 25f, and is guided from the notch 3a to the hinge part through the groove in the upper part of the upper frame 3, and further from the hinge part to the lower part of the hinge part. The dew is collected in a receptacle 26 which is removably fitted to the dew.

Reference numeral 13 denotes a pressure lid that airtightly covers the upper opening of the pot 12 via a pot packing 14, and as shown in FIG.
A flange-like locking portion 13b having a locking portion 13b is integrally provided.
A notch portion 12b corresponding to the cutout portion 12b is provided, and the other portion is a fitting portion 12a that holds the locking portion 13b.
The pressure lid 13 and the pot 12 constituting the sealed pressurized container are fitted together by bayonet fitting. Reference numeral 15 denotes a nozzle that has a communication hole that communicates the inside and outside of the container and is attached to the outer upper surface of the pressure lid 13. This nozzle 15 has a pressure adjustment weight 16 removably set at its tip to adjust the internal pressure of the container. I'm making adjustments. The pressure adjustment weight 16 protrudes into the outside air from an opening provided in the outer lid 5. 17 is the holding shaft,
This holding shaft 17 is provided on the upper center surface of the pressure lid 13 and is firmly fastened to the connecting shaft 18 via the pressure lid 13. Reference numeral 19 denotes an inner lid, which is provided at the lower part of the pressure lid 13 with several small holes to prevent slime etc. from blowing out from the nozzle 15;
An inner lid packing 20 for removably fitting with the lower part of the pressure lid 13 is inserted into the central through hole, and a pan packing 14 inserted into the outer peripheral wall is held in pressure contact with the lower part of the pressure lid 13. . Reference numeral 21 denotes a pressure knob for rotating the pressure lid 13, and this pressure knob is located outside the lid and is directly connected to the other end of a connecting fitting 27 whose one end is fixed to the pressure lid 13.

The pressure lid body, which is made up of the pressure lid 13 equipped with various parts, is rotatably fitted into a holder packing 11 attached to the lower surface of the lid body.

In the above configuration, the operation method will be explained next.

A pot 12 is stored in a protective frame 1 with its position regulated.
The holding shaft 17 of the pressure lid body is fitted into the holder packing 11 attached to the lower surface of the lid body. The flange-shaped locking portion 13b of the pressure lid 13 is made to correspond to the pot notch 12b, and then by rotating, the locking portion 13b is locked to the fitting portion 12a, and the lid is rotated to the main body. Close and lock the outer lid 5.

Next, when the pressure knob 21 is rotated in the closing direction, that is, in the direction of arrow A in FIG. This makes it possible to cook rice under pressure.

By providing the rotation stopper 25 that covers the upper surface of the notch 12c of the fitting portion of the pot 12 in this way, the area for evacuation can be widened and injuries caused by the notch 12c can be prevented. This eliminates the need to spend extra material to widen the discharge hole.

As is clear from the above description, according to the present invention, the connecting portion covering the upper surface of the notch formed in the outer wall of the fitting portion with the lid provided above the pot is provided on both sides of the notch. By molding it integrally with the ribs in contact with the outer wall, an opening is provided between the protrusion of the fixing part, and a detent with a drainage channel formed between the ribs is provided, increasing the area of the drainage hole. As a result, even highly viscous slime can be easily discharged, which prevents overflowing from the pot fitting part and flowing into electrical and mechanical parts located at the bottom of the protective frame. This also eliminates the possibility of injury caused by the edges of the notch.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of a pressure jar rice cooker showing an embodiment of the present invention, Fig. 2 is an exploded perspective view of the pressurized container, Fig. 3 is an exploded perspective view of a rotation stopper, Figure 4 is a partially cutaway perspective view of the same rotation stopper attached, Figure 5 is a cross-sectional view of the same main part, Figure 6 is an exploded perspective view of the same main part, and Figure 7 is a part of a conventional cooker. FIG. 12... Pot, 12c... Notch, 13... Pressure lid, 25... Rotation stopper, 25a... Protrusion, 2
5b...fixing part, 25c...rib, 25d...connecting part, 25e...opening part, 25f...drainage channel.

Claims (1)

[Claims] 1. A fixing part with a protrusion on the top that contacts the lower surface of a notch formed on the outer wall of the fitting part with the lid located above the pot, and extending to the upper end, and both ends of this fixing part. and a rib provided in the notch and in contact with both outer walls of the notch, a connecting part that covers the top surface of the notch is integrally molded with the rib, and a hole is formed between the protrusion of the fixing part and the connecting part that covers the top surface of the notch. In addition to establishing a section,
A pressure cooker comprising a rotation stopper having a drainage channel formed between the ribs.