JPS5835145Y2 - Pressure cooker - Google Patents

Description

[Detailed explanation of the invention] This invention relates to a pressure cooker, and its purpose is to
The purpose is to provide a structure that allows the lid to be opened and closed very easily and is easy to handle.

The configuration of this invention will be described below with reference to embodiments shown in the drawings.

In the drawing, the pressure cooker includes a pot body 1 having a top wall 1a having an oval opening 2, and a stepped periphery with a U-shaped cross section that is brought into close contact with the lower surface of the periphery of the opening 2 via a backing 5. 4, a threaded rod 8 provided upright in the center of the lid 3, and a threaded rod 8 inserted through a hole 22 drilled in the center. An arch-shaped strip 12 which is movably attached and whose ends 12a, 12a are hooked to the top wall 1a of the pot body 1 and has a retrograde cross section is interposed between the lid 3 and the strip 12. a loose V-shaped leaf spring 10 fitted onto the threaded rod 8 through a hole 21 drilled in the center; The handles 14 and 14 are fixed to both sides of the pot body 1 so as to be located on the extension line of the diameter.

On the upper edge side of the pot body 1 is a band-shaped body end receiving portion 17.1.
7 are respectively provided in a state of protruding from the upper surface of the top wall 1a of the pot body 1 by a required height.

In this embodiment, the catch 17.17 is attached to the handle 14.
．． 14 mounting bracket 15.15 is provided at the upper end.

That is, the handles 14.14 on both sides of the pot body 1
Mounting bracket 15.1 fixed by rivets to the side wall of
5 and synthetic resin gripping parts 16, 16 attached to this mounting bracket 15.15 with screws, and a band-shaped body end receiving part 17.17 is attached to the top surface of each mounting bracket 15.15. is provided.

These receiving portions 17.17 protrude upward by a required height 11 from the upper surface of the top wall 1a of the pot body 1, and have U-shaped escape prevention curved edges 18 that are open inward when viewed from above at their edges. are provided for each.

Both ends 12 a , 12 a of the band-like body 12 are fitted into the curved edges 18 , 18 , respectively, to form a receiving portion 17 .
Therefore, the strip 12 is placed on the pot body 1 so that it cannot rotate horizontally.

Further, recesses 13, 13 are provided on the lower side of the respective end portions 12a, 12a of both vertical side walls 32, 32 of the band-shaped body 12, and these recesses 13.
.
When placed on the top wall 1a of the pot body 1, the inner upper edges 13a, 13a of these recesses 13, 13 come into contact with the upper surface of the top wall 1a.

The inner upper edge 13a of each recess 13 is connected to the end 12 of the strip 12.
It has a height of 12 from the lower edge of a.

The threaded rod 8 is integrally provided with a flange 11 at a portion near its lower end, and has an upper threaded portion 8a having a square thread formed above the flange 11, and a lower threaded portion 8a having a triangular thread below the flange 11. 8b is formed.

The lower threaded portion 8b of the threaded rod 8 is inserted into the through hole 6 made in the center of the lid 3 and the through hole 21 made in the center of the loose V-shaped leaf spring 10 placed on the center of the upper surface of the lid 3. is inserted from above, and the nut 7 is screwed onto the threaded portion 8b on the underside of the lid 3 via the packing 23 and washer 24, so that the threaded rod 8 is fixed upright to the lid 3, and at the same time The center portion of the spring 10 is held down by a collar 11 of the threaded rod 8 from above.

A strip 12 is attached to the upper threaded portion 8a of the threaded rod 8 so as to be movable up and down by inserting the threaded portion 8a through a hole (L22) drilled in the center. A female threaded portion 20 of the knob 19 is screwed onto the threaded portion 8a.

In addition, the band-shaped body 12 is secured to both ends of the loose V-shaped leaf spring 10, and by rotating the knob 19,
The space between the strip 12 and the lid 3 can be quickly established.

Additionally, a pressure regulating valve 25, a safety valve 26, and an auxiliary safety valve 27 whose valve body is filled with bismuth or the like are attached to the lid 3 to prevent food from clogging the holes of these valves 25, 26, and 27. A circular filter 28 is removably attached to the back surface of the lid 3.

This filter 28 has a large number of vapor passage pores 29, and a cap nut 30 is attached to the center thereof, and this cap nut 30 is screwed into the lower end of the lower threaded portion 8b of the threaded rod 8. It is matched.

Next, the opening/closing operation of the lid 3 on the pot body 1 will be explained.

For convenience's sake, I will start with the closing part. First, lift the oval lid 3 by pinching the knob 19, and direct the long diameter side above the pot body 1 toward the short diameter side of the oval opening 2 of the pot body 1.

The length direction of this flange-shaped body 12 is directed toward the long diameter side of the opening 2.

In this positional relationship between the two, one end of the long diameter side of the lid 3 is inserted into the pot body 1 from one of the short diameter sides of the opening 2 until the other end passes through the other end of the short diameter side of the opening 2. Insert.

When the entire lid 3 passes through the opening 2 and enters the pot body 1, the lid 3 and the band-shaped body 12 integrated therewith are rotated by 90 degrees.

At this time, the force of the spring 10 is acting on the knob 19 via the strip 12, so the knob 19 does not move freely.

By rotating the strip 12 by 90', both ends 1
2 a and 12 a are respectively located above the receiving portion 17.17.

Next, place both ends 12a, 12a of the strip 12 into the receiving portion 1.
7.17, and in this state rotate the knob 19 and tighten it against the force of the spring 10.

At this time, both ends 12a, 12a of the strip 12 are prevented from moving in the horizontal direction by the curved edges 18, 18 on both sides of the receiving portion 17.17, so even if the knob 19 is turned, the strip 12 will not rotate. do not.

Then, the lid 3 is gradually pulled up by rotation of the knob 19, and its peripheral edge 4 is finally brought into close contact with the opening peripheral edge inside the top wall 1a via the backing 5, so that the inside of the pressure cooker is kept airtight.

Conversely, when opening the lid 3 after cooking, the knob 19 is rotated in the opposite direction, but at this time, the steam pressure remains higher than atmospheric pressure within the pot body 1, so the lid 3 is opened inside the pot body 1. Top wall 1a
The lid 3 is in close contact with the back surface of the pot body 1, and the lid 3 is lowered into the pot body 1 when the internal pressure of the pot body 1 becomes equal to atmospheric pressure due to natural cooling or by the action of the pressure regulating valve 25.

Thereafter, the lid 3 can be removed from the opening 2 of the pot body 1 by performing operations in the reverse order as described above.

By the way, in the opening/closing operation of the lid 3, when the lid 3 is taken out from inside the pot body 1, the lid 3 needs to be lowered by at least a height L below the top wall 1a of the pot body 1.

This is because when taking out the lid 3, even if the short diameter side of the lid 3 is directed toward the long diameter side of the opening 2, it is impossible to take out the lid 3 in a horizontal position. Therefore, it is necessary to maintain a certain distance between the lid 3 and the inner surface of the top wall 1a of the pot body 1.

In this invention, the band-shaped body end receiving portions 17° 17 on both sides of the pot body 1 are each 1 height above the top wall 1a of the pot body 1.
1 protrudes upward, and recesses 13, 13 are provided at the lower edges of both end portions 12a, 12a of both vertical side walls 32, 32 of the band-shaped body 12, respectively,
The inner upper edge 13a of each recess 13 is located at both ends 1 of the strip 12.
2 a and has a height of 12 from the lower edge of 12 a.

Therefore, when opening the lid 3, both ends 12 of the strip 12
A, 12a is lowered from the receiving part 17.17, and the inner upper edge part 13a, 13 of the recessed part 13.13 near both ends thereof.
When a is placed on the upper surface of the top wall 1a of the pot body 1, the lid 3 becomes 11+
It will go down by 12 heights.

Therefore, in order to lower the lid 3 to the required height L when taking it out from the pot body 1, press the knob 19 so that the lid 3 is L-(11+
12) by rotating it in the opposite direction.

Further, when closing the lid 3, the both ends 12a, 12a of the band-shaped body 12 are inserted into the receiving portion 17.
When placed on top of 17, the lid 3 will rise by a height of 11+12, and therefore the knob 19 will be raised by the height of the lid 3.
It is only necessary to rotate the lid 3 so that it is further raised by a height of (11+12), and in the end, the number of rotations of the knob 19 when opening and closing the lid 3 is very small.

Note that, as mentioned above, both vertical side walls 32, 32 of the strip 12
Since recesses 13, 13 are provided at both end portions 12a, 12a, respectively, when the band-shaped body 12 is placed on the top wall 1a of the pot body 1, the edge of the top wall 1a will fit into the recess 13.
, 13, respectively, so that the strip 12 is stably hung on the top wall 1a.

In addition, in the above embodiment, both ends 12 of the band-shaped body 12
The receiving part 17.17 that receives the a and 12a is the pot body 1.
These receiving parts 17 are integrally provided at the upper ends of the mounting fittings 15.15 of the handles 14.14 on both sides.
．． 17 may be provided separately from the mounting bracket 15.15.

Further, the shape of the receiving portions 17.17 is not limited to that of the above embodiment, and may be formed at both ends 12a of the band-shaped body 12.

Any material may be used as long as it can stably place the strip 12a and prevent the strip 12 from rotating.

The pressure cooker according to this invention has a strip body 12 as described above.
Both vertical side walls 32, 32 of the respective strip ends 12
a, 12 Both ends 12a are on the lower edge of the part near a.

Recesses 13, 13 for fitting the edge of the top wall of the pot body 1 are provided which are recessed by a required height 12 from the lower edge of the pot body 1, and band-shaped end receiving portions 17 and 17 on both sides of the pot body 1 The lid 3 protrudes upward from the wall 1a by a height of 11, respectively.
When opening, both ends 12a, l? of the strip 12 are opened. a from the receiving part 17.17, and the recessed parts 13 near both ends thereof.
, 13 on the top wall 1 of the pot body 1.
When placed on the upper surface of a, the lid 3 will be lowered by a height of l□+12.

Therefore, in order to lower the lid 3 to the height L required to take it out from the pot body 1, press the knob 19 until the lid 3 is at L (11
All you have to do is rotate it in the opposite direction so that it goes down by the height of + l 2).

In addition, when closing the lid 3, if both ends 12a, 12a of the band-shaped body 12 are placed on the receiving part 17.17 from the upper surface of the top wall 1a of the pot body 1, the lid 3 will have a height of 11+12. Therefore, the knob 19 is moved up by the lid 3.
All you have to do is rotate it so that it is further raised by the height of L (11+12), and in the end, when opening and closing the lid 3, the knob 19
The number of revolutions required is very small, and the opening and closing operations of the lid 3 are very easy.

Further, since the recesses 13, 13 are provided in the portions of both vertical side walls 32, 32 of the strip 12 near the ends 12a, 12a, respectively, the strip 12 can be attached to the top wall 1a of the pot body 1.
When placed on the top wall 1a, the edges of the top wall 1a fit into the recesses 13, 13, respectively, so that the strip 12 is stably hung on the top wall 1a.

In such a stable state, it is easy to tilt the lid 3 at a required angle and take it out from the pot body 1.
This has the effect that the pressure cooker is easy to handle.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; FIG. 1 is a perspective view, FIG. 2 is a half-cut sectional view, and FIG. 3 is an enlarged sectional view of the main part. 1... Pot body, 1a... Top wall, 2...
...Opening, 3...Lid, 4...Periphery, 5...Backing, 8...Threaded rod, 10...・Spring, 12... Band-shaped body, 1
2a... End portion, 13... Concavity for fitting top wall edge of pot body, 14... Handle, 15...
...Mounting bracket, 17...Band-shaped body end receiving part,
19...Knob, 20...Female thread part,
22... Hole, 32... Vertical side wall.

Claims (1)

[Scope of utility model registration request] a pot body 1 comprising a top wall 1a having an oval opening 2;
An elliptical lid 3 having a peripheral edge 4 brought into close contact with the lower peripheral surface of the opening 2 via a backing 5, a threaded rod 8 provided upright in the center of the lid 3, and a hole 22 drilled in the center. A band-like body 1 having a retrograde cross section is attached to the threaded rod 8 so as to be able to move up and down by inserting the threaded rod 8 into the threaded rod 8.
2, and a spring 10 interposed between the lid 3 and the strip 12.
, a knob 19 having a female threaded portion 20 screwed into the threaded rod 8, and a handle 1 fixed to both sides of the pot body 1.
4.14 and the top wall 1 of the pot body 1 on the upper edge side of the pot body 1.
It is provided with band-shaped body end receiving portions 17.17 provided respectively in a state of protruding a required height 11 above the upper surface of the band-shaped body 12, and both ends 12a of the band-shaped body 12 are attached to these receiving portions 17.17. , 12 a are placed on the pressure cooker, in which the strip 12 is hung over the pot body 1 by placing the strip 12 on both vertical side walls 32 , 32 of the strip 12 , respectively. , the required height 12 from the lower edge of both ends 12a, 12a to the lower edge of the part near 12a.
This pressure cooker is provided with recesses 13, 13 for fitting into the edge of the top wall of the pot main body.