JPH01230316A - Pressurized cooker - Google Patents

Abstract

PURPOSE:To prevent the danger due to the injection pressure in the case when a residual pressure in a cooker exists, by allowing a slide plate to contact the engaging piece of a body container and to shift outwardly in the radial direction and permitting the upward shift of the lock pin of a locking mechanism and separating the slide plate from the engaging piece and shifting said slide plate inward and regulating the upward shift of the lock pin. CONSTITUTION:The increase of the internal pressure of a body container 2 raises a lock pin 43, and a large diameter part is set oppositely to the cut-in part 39 of a lock plate 36. When the internal pressure lowers, also the lock pin 43 lowers, and when a cover body 3 is turned, a hook 37 is engaged with an engaging piece 6, and a slide plate 32 is pushed leftward by a spring 49, and the cover body 3 can be turned, suppressing the contact of the slide plate 32 with a stopper piece 27. When the residual pressure in the body container 2 is high, the lock pin 43 is at a high position, and the large diameter part is set oppositely to the cut-in part 39. Therefore, even if the cover body 3 is turned, and the hook 37 is set oppositely to a horizontal piece 7 between the engaging pieces 6, the slide plate 35 for inward shifting the lock plate 36 contacts the stopper piece 27 of a handle, and the turn of the cover body 3 is suppressed, and the injection of the residual pressure is suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a pressure cooker that stops the rotation of the lid body when the internal pressure is high.

(Prior art) When the internal pressure is high, the rotation of the lid is prevented and the food to be cooked is prevented from being spewed out when the lid is opened.
This is well known as disclosed in Publication No. 8. In this known example, the sliding body receiving the applied force of the spring has a pressure of i+! ] It can be positioned in one part of the valve member of the valve regulator, and the sliding body can be moved along the groove in the handle. In this configuration, when the internal pressure is high, the sliding body comes into contact with the valve member, and as a result, the sliding body cannot move within the guide groove, and the lid body is substantially prevented from rotating.

(Problems to be Solved by the Invention) Although the configuration in which the sliding body is guided along the guide vortex has the advantage of accurately controlling the movement of the sliding body, if a foreign object enters the guide F groove, the foreign object The movement of the sliding body is affected by this. Therefore, always keep the inside of the groove clean,
I need to check if there is a foreign object.

Some people who regularly use pressure cookers do not like such inspections, and many people prefer pressure cookers that are easy to maintain and inspect.

Therefore, the present invention aims to solve the problem of not satisfying such demands.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a plurality of spaced apart engagement pieces provided on the periphery of the opening of the main container, and a plurality of spaced apart engagement pieces provided on the side wall of the lid body. In a pressure cooker that is overlapped with the engaging piece of the main container to seal the two, a sliding plate that receives a force of a spring is disposed on the handle fixed to the lid body, and the sliding plate is placed on the engaging piece of the main container. The lock pin of the locking mechanism fixed to the lid body is moved radially outward upon contact, and the slide plate is moved inward away from the engagement piece of the main container. The present invention provides a pressure cooker characterized in that the lock pin is restricted from moving upward.

(Function) In the present invention, the movement of the slide 1: plate is controlled by contact with the engagement piece of the main container. That is, when brought into contact with the engagement piece, the slide plate is moved outward, allowing the lock pin to rise. Furthermore, since the slide plate is opposed to the stopper piece 6 when the lock pin is raised, rotation of the lid body is reliably prevented.

(Example) 11 of the pressure cooker 1 is not shown in the standing state in FIG. , and an upper handle 5 fixed to the lid body 3. The main body container 2 has a substantially cylindrical shape with a bottom, and a plurality of spaced engagement pieces 6 are provided around the opening of the main body container 2 . As is clear from FIG. 2, the opening periphery of the main container 2 has an annular horizontal piece 7 extending radially outward.
The engaging piece 6 extends radially outward from the annular horizontal piece 7, and both ends thereof have a smooth curve in the shape of a semi-circular arc, and the side edges of the engaging piece have. The illustrated example uses six engaging pieces 6 that are equally spaced and have equal widths.

The lid body 3 has an annular side wall 8 having holes 9 at appropriate positions, and a plurality of locking pieces 10 facing inward in the radial direction are provided at the lower end of the side wall 8 spaced apart from each other. These locking pieces 10 fit between the locking pieces 6 of the main container 2, and when the lid 3 is rotated relative to the main container 2, the locking pieces 10 enter the lower side of the locking pieces 6 and the lid body 3 to the main body container 2. Further, an inward protrusion 70 is provided on the side wall 8 to restrict rotation.

A packing 11 is arranged inside the side wall 8 of the lid body 3.

The packing 11 includes a main body portion 12 consisting of an annular thick portion;
There are upper and lower tongue pieces 13 and 14 extending upward and downward from the inner peripheral side of the main body part 12. In the example shown in Fig. 4, the main body part 1
2 has a roughly egg-shaped cross section, with arcuate parts 15.1 above and below it.
It has a wall portion such as 6 annular convex shapes. The upper and lower tongues I3.14 have substantially similar cross-sections and a widened V-shape, and arc-shaped bulges 17.18 are formed on the upper and lower surfaces of the semicircular portions at their tips. In the example shown in FIG. 5, the bulging portions 17.18 used in the example shown in FIG. 4 are omitted, and the tips of the upper and lower tongue pieces 13.14 are semicircular. Same as the example shown.

The packing 19 shown in FIG. 6 includes a main body 20 having a substantially round cross section and an elastic wall, and upper and lower tongue pieces 13 extending radially inward from the central part of the inner circumferential side of the main body 20. .14. The connecting portion between the main body portion 20 and the upper and lower tongue pieces 13.14 is an annular upper and lower recessed portion 21.22, and these four portions 21.2
2 improves the elasticity of the upper and lower tongue pieces 13 and 14. In the example shown in FIG. 7, the main body 23 has a substantially rectangular cross section, has triangular protrusions arranged in an annular or convex shape on its outer periphery, and has a plurality of edges 24 formed on its lower surface. , these edges 24 are allowed to come into elastic contact with the inner wall surface of the lid 3 and the horizontal piece 7 of the main container 2. In addition, in the example shown in FIG. 8, the main body 25 has a substantially rectangular cross section, and a plurality of tapered annular pieces 26 are provided on the upper and lower surfaces of the main body 25. j26
It is elastically brought into contact with the inner wall surface of the lid body 3 and the horizontal piece 7 of the main container 2.

Figure 6-8 shows old piece 13 of Baso 1
,] 4 is not substantially shown in FIGS. 4 and 5, but is a puff-1-
1 lower tongue piece 13.14 and a bulge 17.18 on these.
It is the same shape as the part with .

As shown in FIG.
The outer circumferential surface of the main body part 12, 20, 23, 25 is brought into contact with the inner circumferential surface of the side wall 8 of the lid body 3, and the tip of the top piece 13 is brought into contact with the inner wall surface of the lid body 3. It is arranged inside the lid body 3.

When the lid 3 is opened and the main container 2 is seated on the screen,
The main body part 12 of the packing is placed on the horizontal J'r 7 o) H surface.
．． The lower surfaces of 20, 23, and 25 are in contact with each other, and the tip of the tongue piece 14 is in contact with the inner wall surface of the main container 2.

The main body and tongue of these packings come into contact with the lid and the main body part 2 in an elastic manner, and the contact area is small, so even if the lid 3 is rotated against the container main body 2G, It does not increase the sliding resistance. Furthermore, it facilitates the movement of the packing due to the pressure difference between the inside and outside.

After fitting the lid 3 firmly against the container body 2, heat it over a fire, and the pressure inside the main body 2 will rise. By increasing the pressure in this manner, the pieces 13 and 14 are brought into pressure contact with the inner wall surface of the lid body 3 and the horizontal piece 7 of the main container 2, thereby preventing pressure from escaping. Excessive pressure increase presses the barrel 11.19 against the side wall 8 of the lid 3, forcing a portion of it into the hole 19. Bread like bread; 1-11.1! ] The movement of a part of the main body part moves a part of the ten-tongue piece 14 to the outside of the horizontal piece 7, bringing the inside and outside into communication, releasing the internal pressure to the outside, Due to constant rise in internal pressure; prevent danger such as explosion. Separately from this, if the pressure inside the main container 2 becomes excessive Q pressure with respect to the outside, the atmospheric pressure acting on the tongue piece 13 from between the engagement pieces 6 pushes the lower tongue piece 13. enters the main container and eliminates the abnormal negative pressure inside.

The annular wall portions such as the arc portion 15, the etching 24, and the annular piece 26 provided on the upper and lower surfaces of the main body portion 12, 20, 23, 25 are elastically pushed in the radial direction of the cliff. Therefore, when the pressure inside the main unit 2 is negative, external atmospheric pressure can be easily introduced.

The lower handle 4 is fixed to the main container 2 using screws, and a strip 27 facing -1-1 is provided on the upper surface of the lower handle 4. The handle 5 is attached to two sides of the lid 3 as shown in FIGS. 1 and 9. il hippo part 2) (has,
This cover part 28 has a hole 29 and a substantially rectangular recess 30, and a screw is screwed into the lid body 3 through the recess 30, and a screw is screwed into the side wall 8 from the lateral direction of the upper handle 5. Handle 5
is fixed to the lid body 3.

”-The handle 5 has a main part 31 facing the person, and a cover part 28.
A stepped groove 32 extending from the main portion 31 to the main portion 31 is provided.

This a32 is a pair of ribs 33 provided on the lower surface of the cover part 28.
．． 34, installed in the main part 31) and an inwardly facing part. A slide plate 35 is arranged in the groove 32. As shown in FIG. 10, the slide plate 35 consists of an L-shaped lock plate 1.36 and a claw 37 fixed to the downwardly facing part of the lock plate 36 by a heel I. The claw 37 has a stepped semicircular sliding surface 38. (2) A semicircular notch 39 is provided in the tensioned part of the cutter I-36.

This slide plate 35 is slidably disposed within a and 32 as shown in FIGS. 1 and 11-16.

A nano] plate 40 is placed between M3 and slide plate 35. This nut plate I.40 functions as a nut for fixing the valve body 42 of the locking mechanism 41 to the lid body 3. A lock pin 43 is arranged within the valve body 42. ! : 1 pin 43 : 1, main body part 2) (lower part that receives pressure inside 2,
When the pin 43 receives pressure, it rises by 1L, but the northern part of the pin 43 goes beyond the horizontal piece of the plate 36 to the hole 4 of the upper handle 5.
Enter within 4. Although such a one-cock mechanism 41 is known, in this example, the gas quench I.45 disposed between the lower part of the lock pin 43 and the valve body 42 is new.

The gasket 45 made of silicone com is the 17th-22nd
As shown in the figure, a depression is provided on the outer peripheral surface.

In the example shown in FIG. 17, a triangular notch 46 is made on the outer peripheral surface to form a lip 47 that expands in the J and F directions. 18th
The illustrated example has a semicircular notch 46 and a lip 47 extending l-downward. In the example shown in FIG. 19, the outer circumferential surface is a large arcuate surface, and a lip 47 is formed below it. In the example shown in FIG. 20, a semicircular notch 46 is made on the outer peripheral surface, and lips 47 having a semicircular cross section are provided above and below the notch 46. A gasket 45 shown in FIG. 21 is similar to the example shown in FIG. 17, but has an arcuate portion 48 on its inner peripheral surface. In the example No. 221m, the cuts 46 are formed so as to form a bidirectional lip 47 and a sideways lip 47.

The gasket 45 can apply a large elastic force to the lower lip 47 by the notch 46. Therefore, when the lock pin 43 rises and the gas gauges 1 to 45 are seated on the valve body 42, the sealing performance is improved, and furthermore, the lock pin 43 is assisted in keeping the lock pin 43 from the valve body 42, and the gasket 45 Eliminate sticking to body 42. That is, the contact of the gasket 45 with the lock pin 43 and the valve body 42 is made in a form close to a line contact with elastic force, so that it is difficult for the gasket 45 to stick together. It makes it easier to separate from the body 42.

I The movement of the slide plate 32 will be explained with reference to FIGS. 11-16. Arrange the lock plays 1 and 36 of the slide plate 32 between the nand plate 40 and the upper handle 5, insert the claw 37 into the hole in the side wall 8 of the lid body 3, and use the spring 49 to move the slide plate 32 in the radial direction. Push inward. The center of the notch 39 of the lock plate 36 is placed on the center line of the lock pin 43.

11-12 shows the locking piece 10 of the lid 3 being attached to the main container 2.
The lid body 3 is shown placed on the opening edge of the main container 2 so as to be placed between the engaging pieces 6 of the figure. In this state, lock pin 4
3 is lowered, and the large diameter part of the pin 43 is connected to lock plays 1 to 3.
It faces the lower surface of the periphery of the notch 39 of No. 6. The claw 37 is attached to the side wall 8
The packing 11 is pressed inward through the hole, and the lower part of the sliding surface 38 slides against the side edge of the horizontal piece 7 on the periphery of the opening of the main container 2. For example, even if you put the lid 3 shown in FIG. 1112 on the main container 2 and put it on fire, the lock pin 4
3 cannot be raised by the lock plays 1 and 36. In addition, since the lower tongue piece 14 of the packing 11 is separated from the main container 2, the internal pressure escapes to the outside and the internal pressure does not increase, allowing pressure cooking. It doesn't serve as a vessel.

When the lid body 3 is rotated relative to the main container 2 from the state shown in FIGS. 11-12, the locking piece 10 moves to the lower surface of the engaging piece 6,
At the same time, the sliding surface 38 of the pawl 37 comes into contact with the edge of the adjacent engagement piece 6, and the pawl 37 and slide plate 35 are moved to the right side against the biasing force of the spring 39 as shown in FIGS. 13-14. Move to. As a result, the periphery of the notch 39 of the lock play 1.36 is separated from the large diameter portion of the lock pin 43, and the seal 1
1 is brought into contact with the lid 3 and the main container 2. If you turn on the fire in this state, that is, when the lid 3 is properly closed, the main container 2
It can increase the internal pressure. The upper limit of the internal pressure causes the lock pin 43 to rise and its large diameter portion to be inserted into the notch 3 of the lock plate 3G.
Face 9. When the internal pressure of the cooker decreases, the lock pin 43 also decreases due to its own weight, resulting in the state shown in Fig. 12, and the lid body 3
When rotated relative to the main container 2, the claw 37 engages the engaging piece 6.
Once inserted, the spring 49 pushes the slide plate 32 to the left, and the slide plate 32 does not come into contact with the stopper piece 27, allowing the lid body 3 to rotate.

FIGS. 15-16 show a state in which the lid 3 is rotated when the internal pressure is high and the residual pressure is high. When the residual pressure inside the main body container 2 is high, the lock pin 43 still occupies a high position.
The large diameter portion faces the notch portion 39 . Therefore, even if the lid body 3 is rotated and the claw 37 is opposed to the horizontal piece 7 between the engagement pieces 6, the lock plate 36 does not move inward.
The slide plate 35 hits the stopper piece 27 of the handle, preventing further rotation of the lid body 3. In other words, the cooking material is prevented from spewing out when the lid 3 is opened when the residual pressure is high. In addition, when the residual pressure is high, the tip of the lock pin 43 is made to protrude slightly from the upper handle, so that the cook can predict that the residual pressure is high.

A pin 50 is arranged to hold both ends of the pair of ribs 33 and 34, and the pin 50 is inserted into the groove of the Nand plate 1 and 40, and the rotation of the nut plates 1 to 40 when screwing the valve body 42 into the Nand plate 1 to 40. In addition, the pin 50 allows the slide plate 35 to move smoothly.

A glass window body 51 is installed at a suitable location on the AL body 3.The glass window body 514 is a circular shape as shown in FIG.
[Make two sheets of heat/pressure resistant glass 52 into a transparent body, seal the periphery with a sealing material 53, and fix this seal 53 to the glass 52o) H force light body with a soil top cover 54.55. do. - The lower covers 54 and 55 are fixed by welding the annular flanges to each other by welding the annular flanges to each other, or, although not shown, are secured to the side edges of the upper and lower covers by uneven engagement parts. , the upper and lower covers 54 and 55 have a - body shape, and an annular groove 56 is formed. This fan 56 is in contact with the back surface of the lid 3, which is the rib where the glass window 51 is inserted into the hole 29 of the lid 3 from the lower blade. ” Weld and secure bolts 57 at three locations on the second cover 54. Alternatively, although not shown, part 11 of an integral molded body may be provided. A glass window stopper 58 is arranged on the lower surface G of the lid body 3. The stopper 58 has a circular central hole that allows the interior of the container to be viewed through the transparency of the glass 52, and its periphery has a downward facing side wall and a horizontal flange 59.

With the pan 4-60 arranged in the groove 56, the hole 29 of the lid body 3 is opened.
The glass window body 51 is inserted into the housing, and the gasket 60 is brought into contact with the lower surface of the lid body 3. A stopper 58 is placed on the top surface of the lid 3 so as to receive the bolt 57. Next, when the nut 61 is tightened on the bolt 57, the flange 59 of the stopper 58 comes into strong contact with the -L surface of the lid 3. Furthermore, when tightening 61 to Nano 1, Holt 61 is attached to stopper 58.
Relative to ``1 increase, so Patsukin 6
0 is pressed against the lower surface of the lid body 3. In this way, the glass window body 51 can be firmly fixed to the lid body 3 while ensuring a seal.

As an example (not shown in FIG. 1), the upper handle 3 and the glass window body 51 are combined, but as shown in FIG. 23, the glass window body 51 may be attached independently of the upper handle 3.

The example shown in FIG. 23 is basically the same as the example shown in FIG. 1, so the same parts are denoted by the same reference numerals and their explanations are omitted. For example, as a nut 61, a bag nano I-
so that the tip of the bolt 57 cannot be seen from the nut 61.

Another example of the sealing material 53 is shown in the 24th article. A large number of protrusions 62 in the shape of +21 blades are extended from the inner and outer walls of the sealing material 23 having a U-shaped cross section to strongly prevent contact with the end surface of the transparent body of the crow 52 and contact with the upper upper cover 54 and 55. This process improves sealing performance.

In the illustrated example, a flat body or a convex glass may be used as the transparent body of the glass 52. In this case, the contents inside the container can be seen in an enlarged form, and water droplets gather in the center, which has the effect of preventing clouding. Furthermore, when a concave lens is used, the field of view inside the container is expanded to allow more space to be seen inside the container, and water droplets flow to the periphery, which is effective in preventing clouding. Although not shown, a transparent body using a combination of these lens-shaped glasses may be used.

In the illustrated example, two pieces of glass are used, but of course one piece of glass may be used. Preferably, they are laminated and a transparent, heat-resistant adhesive or transparent film is inserted between them to make the laminated glass and the like adhere tightly and strengthen it, thereby preventing damage and scattering of the glass due to impacts and the like.

Next, an example of attaching the glass window body 51 to the lid body is shown in Nos. 25-28.
As shown in the figure. In the example shown in FIG. 25, the upper toe cover 54.5
Extend the mating surface of 5 outward to the side -l, and attach a gasket 6 to its end.
0, the periphery defining the hole 29 of the L handle 3 is extended to the periphery of the hole in the lid body 3, and the hissing member 62 is screwed into this periphery from the mating surfaces of the upper and lower covers 54 and 55, and the glass window body 51 is fixed to the lid body 3. ”-Place the cover 54 on the upper handle 5.
the periphery of the hole 29. The example shown in FIG. 26 is the same as the example shown in FIG. 25 except that the position of the gasket 69 is different from the example shown in FIG. 25, so a description thereof will be omitted.

In the example shown in FIG. 27, a plurality of nut members 63 are fixed at appropriate positions on the upper cover 54, so that the peripheral edge 64 defining the hole 29 of the upper handle 5 covers the nut portion 463 of the lock. A screw 62 is screwed into the nut member 63 from the peripheral edge 64 to fix the glass window body 51 to the lid body 3. At this time, Patsukin 6
0 strongly contacts the lower surface of the lid body 3 to ensure sealing performance.

The example shown in FIG. 28 is an example in which the cover part 28 of the second handle 5 is not on the periphery of the hole in the lid 3, and the upper cover 54, 55 is not integrated, and furthermore, the cover part 28 of the second handle 5 is not on the periphery of the hole in the lid 3. A plurality of nut members 63 are attached to the upper cover 5 so as to be located between the upper cover 5 and the sealing material 53.
It is welded to 4. When installing, apply the sealing material 5 around the transparent body of the glass 52 to the horizontal piece of the lower cover 54.
3, and place the outer periphery of the upper cover 54 on the top surface of the lid 3. Next, place the lower cover 55 on the inside of the lid 3 so that the sealing material 55 and its outer periphery are in contact with the inner surface of the lid 3. Allocate to.

The screw 62 is screwed into the nut member 63 through the lower cover 55 to fix the glass window body 51 to the lid body 3.

In the example shown in FIG. 29, a glass window body 51 is fixed to a lid body 3 provided with a handle 65 from 1 to 30 mm. In this example, when the handle 65 is rotated, the arm 66 rises by one inch and its end abuts against the stop 67.

When the arm 66 stops moving, the subsequent rotational force of the handle 65 is transmitted to the lid 3 as a reaction force, and is pressed against the lid 3 and the main container.

Further, when the handle 65 is rotated, a torque limiter is activated, causing the handle 65 to rotate idly.

Incidentally, since the weight valve 68 and the float valve 69 are known ones, their explanation will be omitted here.

] 9 (Effects) In the present invention, since the slide plate is slid using the side edge of the engagement piece, there is no need to create a guide groove as in the conventional case.
The handle can have a simple configuration.

Furthermore, the contact between the stopper piece and the slide 1 plate reliably prevents the lid from rotating, thereby preventing danger from ejection pressure when there is residual pressure inside the cooker.

A plan view of the main body of the container, Fig. 3 is a bottom view of the lid, Figs. 4-8 are sectional views showing each embodiment of the packing, Fig. 9 is a plan view of the upper handle, and Fig. 10 is a view of the slide plate. Perspective view, No. 11-1
Figure 6 is a plan view and a side cross-sectional view showing the movement of the slide plate.
．． 7-22 is a sectional view showing examples of various gaskets, FIG. 23 is a sectional view showing another example of a glass window body, FIG. 24 is a partial sectional view showing another example of a sealing material, and FIG. 25- Figure 28 is a blank diagram = 2-main container, 3-lid, 4.5-handle, 6
-Engagement piece, 10-locking piece, 11-packet, 13.14
- tongue piece, 19 - packing, 27 - stopper piece, 35 - slide plate, 36 - lock plate, 40 - nut plate, 41 - lock mechanism, 43 - lock pin, 45
- Gasket, 51- Glass window body.

Agent Patent Attorney Akemi Kuwa Hara vague C blood

Claims (4)

[Claims] (1) In a pressure cooker in which a plurality of spaced engagement pieces provided on the periphery of the opening of the main container are overlapped with a plurality of spaced engagement pieces provided on the side wall of the lid body to seal the two, the lid A lock mechanism in which a slide plate subjected to a spring force is disposed on a handle fixed to the body, and the slide plate abuts an engagement piece of the main container, moves radially outward, and is fixed to the lid body. The pressure is characterized in that the slide plate separates from the engaging piece of the main container and moves inward to restrict the upward movement of the lock pin. Cooking device. (2) The pressure cooker according to claim 1, wherein the slide plate opposes the stopper piece and prevents rotation of the lid when the lock pin is raised. (3) The pressure cooker according to claim 1, wherein the slide plate is movable while being guided by a surface of a nut plate fixed to the lid. (4) Claim (4) wherein the slide plate has a claw inserted into a hole in the side wall of the lid, and the claw can come into contact with the packing.
1) Pressure cooker.