DE3429289A1 - Regulating and control device for pressure cookers - Google Patents

Abstract

The invention relates to a regulating and control device for pressure cookers with bayonet-type closures. Corresponding laterally projecting semi-handles are fastened to the pan body (12) and to the lid (6). The upper handle (22) contains an adjustable valve unit and a blocking element (29) which can deform the seal (41) between the pan body and the lid at the instant it is opened. The valve unit is made up of a support (1) having two regions of different diameter which form a step. The support is coupled by means of the step to a hole opening in the lid (6) whereas its lower half is provided with a thread. A union nut (7) holds the lower part of the sleeve (1) securely on the pan lid (6). The union nut (7) has in a lower narrow part an annular, spherical bearing (11) for an axial sealing piston (10). With the support (1), the piston (10) forms an annular chamber (14) which communicates with a steam outlet opening (15). The piston (10) is pressed against the union nut (7) by a spring (9). The pressing force of the spring (9) can be adjusted by means of a fork (9) whose tines are notched in a zigzag shape at the lower ends. As a result, different maximum boundary pressures can be set in the pressure cooker. The fork (19) is moved via a lever (21) whose circular movement ... Original abstract incomplete. <IMAGE>

Description

3423283

description

The invention relates to a regulation and control device for Pressure cookers according to the preamble of claim 1. With such a device, the pressure should be properly regulated and precise control of the opening and closing processes of a Pressure cooker or pressure cooker can be obtained.

There are basically two types. Steam boils bp fen, namely those in which the lid is attached to the pot body with the help of a bridge and supported by a central area of the Cover arranged clamping device fasten ", i ^ t., And those in which a "bayonet-like" connection between, the pot body and the lid is arranged. Both parts are ·! provided with a radial half handle, by means of which the opening and closing operations are carried out, with both half handles in the closed position one above the other are arranged.

Mechanisms made available to the public are special

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" ⁸ " 3429283

is directed towards this second type of cooking utensils, i.e. saucepans with bayonet locks.

All saucepans are obviously with a pressure relief valve equipped that makes it possible to achieve the maximum internal pressure limit. There are also pots known in which the It is possible to regulate this pressure so that different operating conditions in the saucepan according to Art the products to be cooked can be set.

There are also known devices that open the Saucepan and even before the lid is removed, act on the airtight seal between these two parts, by forming a gap through which the possible remaining Internal pressure can be released gently.

In the Spanish utility model 56 447, registered in 1956, was a saucepan of this type is claimed, i.e. a saucepan with a bayonet-like closure which is provided with means for regulating the pressure of its valve device is equipped.

In Spanish utility model 130 329 again "i r. T a device for a saucepan of this type vcicj ^; -, ei"2r;,: iie is designed in such a way that the seal in the:! C-Ticst, i ti

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which one begins to open the saucepan to the previously discharged Purpose is deformed. Further entries, such as the Spanish utility models 188 946, 188 937, 188 938, 138 939, 188 947, 228 573, 228 659 and 257 542 relate to various devices that can be used in various ways Type, all of which tend to include the aforementioned functional features that include pressure regulation and to enable and maintain control of the pressure when opening.

The object of the invention is to improve a cooker with a device for regulating and controlling the pressure, wherein structurally simpler means are to be used and a greater operational reliability and a higher degree of Security should be achieved.

With a Vorricnti.ng, this task becomes the η Αι ΐ mentioned solved by the characterizing features of claim 1.

The device according to the invention is embodied in a Valve unit that is connected to the lid of the saucepan and which is provided with a pressure regulator that is in a Approach of the upper handle, which partially covers the lid, the

includes the upper handle, overlapped, apart from a lever by which the pressure regulator controls is recorded.

Also in the upper handle, but in the area that constitutes the actual handle, is the disqualification arranged for the pressure-tight seal when the saucepan is opened, this mechanism firmly connected to the Adjustment knob is connected so that the connection between these two. Devices prevents that the lid can be closed when the lever is in another than in the O-position to the opening, and in the same Way it only allows you to close it in this position.

The invention is illustrated with reference to the drawing Exemplary embodiment described and explained in more detail. It shows:

Figure 1 is a longitudinal section of an inventive rule and control device for pressure cookers, those with the handles of the Kc:! itüpfes sovi = connected to its lid and pot body is, the assembly in the closed position, in which the pressure can be regulated

can, is shown;

Figure 2 shows a section of the opening and Sch hay control associated devices in one almost fully closed position that can only be reached when the lever is in the "O" position;

FIG. 3 shows the device in a representation similar to FIG. 2 in the open position, the Deformation of the seal can be seen and ■ also that it is impossible to move the lever to Regulating the pressure to move the saucepan;

Figure 4 is a perspective exploded view the valve unit and drive means for Regulation of pressure;

Figure 5 in a further perspective view. A detail of the Venti1 carrier, which with the corresponding area of the handle is connected in which the pressure-tight seal is arranged with respect to the gas outlet; and

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Figure 6 is a perspective exploded view a detail of the connecting end of the '' lower handle together with the elements for deforming the pressure-tight seal and to block the lever and the lever itself.

From Fig. 1 and 4 it can be seen how the valve 1 e irine i t is formed by a valve carrier 1, which is essentially

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like a cylindrical socket with two different diameter ranges is constructed, one of which is assigned the reference number 1, and which has a lateral projection 2, to attach it to the head 3 of the upper handle by means of a screw 4. A second area 1 'with a The slightly smaller diameter limits a step 5 with respect to the previous area 1, through which the carrier is connected to an opening in the lid 6 of the saucepan. The socket is with the help of a union nut that is a part of the valve, attached to the lid.

Inside the Venti 1 carrier 1 , more precisely in the o ': rep. p.reich with larger diameter, is eir.e 3uchs ^- ; 8 - ~ «jf ^r ; j-io.v. ^ sn,. animals upper opening is partly vsrengt, ⁱ jy e'.n support f'Jr ο ine

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To form control spring 9, which rests at its other end on a gradation of a sealing piston 10, which with the above described arrangement is axially connected.

The sealing piston 10 rests by means of a spherical shape Support 11 on a corresponding support which is arranged in the union nut 7, with an airtight or pressure-tight Termination, which is maintained by the action of the pressure of the spring 9, is formed.

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The internal pressure of the vessel, which is passed through the body 12 of the saucepan and the lid 6 is delimited, such a value that the pressure on the end face of the sealing piston 10 is greater than the tension of the spring 9, the piston lifts off, the support 11 detaches from its complementary part and the steam can through openings 13 of a perimetric Chamber 14, which is formed between the piston 10 and the sleeve 1, and by an outflow opening 15, which in the L-evedrive effective Handle is formed so long flow out until the pressure to a value below the spring tension of the spring 9 falls off.

In order to regulate this pressure, the bush 8 is designed in such a way that it is located axially in the receiving recess of the valve sleeve 1

can move and thus shorten or lengthen the size of the spring. For this purpose, the socket 8 has two diametrically opposed to each other opposing radial lugs 16 through the recesses 17, which are made in the wall of the sleeve 1 in the direction of action, and the roof-shaped surfaces 18 form for the prongs of a fork 19 contacting them, the lower edges of the ends of the prongs are notched in a zigzag shape. The gradations 20 thus formed define stable ones selected connection areas for the lateral approaches 16 of the bush 8, whereby the bush 8 is able to have different axial positions with respect to the sleeve 1, correspondingly with the number of gradations ZO that are present in the prongs of the fork 19 to be taken, or in other words expressed, is able to match the spring 9 with the To keep the number of gradations under different tensions, these correspond to the pressure values in the saucepan to open the valve.

The fork 19 is driven by a lever 21 which is on the upper handle 22 is arranged and articulated in the area where its own arm and head 2ö converge and in which the valve unit is partially received.

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An eccentric 24 rests on the inside of the lever 21. This eccentric 24 is via a neck pin with a receiving recess 26 in the fork 19 in such a relationship that the rotary movements of the lever 21 can be converted into rectilinear movements of the fork. The lever 21 is at the same time with the eccentric 24 by means a screw 27 attached to the handle.

The movements of the lever 21 for regulating the valve pressure are, as stated above, only possible when the saucepan is in is in the closed position. So that the lever is his can reach closed position and later also open, he must be in a predetermined position, in particular the "O" position. These positions correspond to the open one and the closed position in which the spring 9 is at its maximum is extended.

For this purpose it is provided that a movable locking element 29 is installed in the upper handle 22 and in a guide 28, on which an inclined surface 30 is formed. This element 29 tends to be moved downwards by the action of a securing pin 31, which is continuously acted upon by a spring 32 and is provided with an inclined surface corresponding to surface 30. In addition, there is a ramp or inclined in the lower handle 33. ¹ ou ^ r '.'c; j ~ Ί äcns

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34 arranged, the width of which corresponds to that of the locking element 29 matches. Immediately behind it is a recess for receiving 35 arranged for the lower end of the locking element 29.

Under these conditions, when the cooker is open, the locking element 29 takes the maximum lower position, as in Fig. shown, since its lower end is free and its inner head 36 a lock 37 when attempting to rotate the lever 21 which is connected to the same eccentric 24 so that it is impossible for the latter to rotate and consequently the same thing happens with the lever.

On the other hand, if one starts from the closed position, as shown in Fig. 1, and wishes to open the saucepan, the lower end of the locking element 29 must be the receiving recess 35 leave, where it is up and on the bulge or projection 38 between the recess 55 and the ramp 34 is present, moves past.

As in the previous case, this upward movement is only possible when the lever 21 is in the "O" position, this is only possible when the head 36 of the locking element 29 reaches the upper end position in which it is very close to

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the lower end of the drive lever comes in, obviously the position in which the locking element 29, seen from the side, is out of alignment with the lock 37.

Thus, the lid of the saucepan cannot be opened when the valve unit is in a position other than in FIG which is located, which is intended to open and close.

In addition to acting as a drive for the locking element 29 in its elastic downward movement, the extends Securing pin 31 in two parallel arms 40, between those see or through which the locking element 29, as shown in Fig. 3, slides into the open position, with the arms 40 of the seal of the saucepan are facing and they touch and in this open position, as shown in Fig. 3, cause the seal is stretched or deformed and forms a gap 42 through which the remaining steam gently passes through it Area is drained.

From the example disclosed, the high degree cc-r forVr. ti "; ne 1 len and the structural safety of the device which are completed by a series of seals is, by means of which it is completely sealed in the connection of the lid, so the steam has no access to

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Share this mechanism has.

In particular, the following arrangement is provided: An O-ring 43 between the union nut 7 and the cover 6, a flat seal 44 connected to the sealing piston 10 is what the vapor discharge chamber 14 regardless of that Makes area where the bushing 8 is arranged, a spring 9 and means for regulating these elements and finally a third connection or seal 45, which can be seen in detail from FIG. 5 and which is provided to connect the To enclose the carrier 1 with the head 23 of the upper handle and from this to the cover 6 itself, and in this way to ensure that the outflow opening 15 is airtight for the outflowing Steam is complete.

It is not considered necessary to include this description yet

in more detail to allow a specialist to understand the scope of the

To make invention and the advantages dependent on it understandable.

The materials, spatial design, size and equipment the elements can be varied provided that they do not alter the essential nature of the invention includes.

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Claims (20)

Dipl.-Ing. (1963-1981) («ι .." ι ü'.wo.il:. LiWE DREISS Doim European Patotit ι; ηι .. gel. .Sene Veilii.1 ·.! · · Ι · / 1 / 'I. Dr jur. IJipl-lng., M Sc. EuropcEi.i Ρ..ί ..- iii Λι: .ι.:. , ',.'''!'''' HEINZ HOSENTHIEN Dr.-lng., D: pl.-lng. "^ j - ■ ''' ¹ '·" ^{! ι} · ^: JÖRN FUHLENDORF ί υ I. , Dipl.-Ing. { ^! _ ^ J ^! · "^ Fcs-ucliur Ί HiEN a. fuhlendorf, d-7000 sruTTG / MiT; <5 / O η O O η Applicant: Priority: Radar S. Coop. - 30. November 1983 Escoriaza No. 276.052 Guipuzcoa / SPAIN Spain Official Act. Z. Your reference Our reference date Often. Sen No. Your Ref. Our Ref. Date 1831-001 July 20, 1984 F / sw Ti te 1 :, Regulation and control device for pressure cookers Expectations Regulation and control device for steam cook topie, especially for saucepans with bayonet-like closures, in which corresponding laterally protruding handles are attached to the pot body and lid, which are coupled together when closing and separated from each other when opening, the upper handle an adjustable valve unit and includes a securing element, which causes the seal, which is present between the pot body and the lid, to be deformed at the moment of opening, da_d_ujx_h__gjeke_n_n_ ^ z eich net that the valve leinht: it from a carrier (1) BATH Pdi.1 Ki-hBChkonto Slutly nt Wi / / I- f''t lUl .. '. C010.J 70) Dr ^ siinoi Ijn-.l: -: rutii | .ir! ι O ι > · \ :. · fl.l .. · i.ij :) ': «!!!.»! ·, is constructed with two different diameter portions, forming a stage, by means of which their upper half <:, i I the mouth of a bore irn lid (6) is coupled, while its lower half, which is provided with a thread, a locking nut (7 ) holds that the carrier (1) has a radial projection (2) in its upper half, through which it is fastened to the head (3) of the upper handle (22) by means of a screw (4), while the locking nut (7) , which forms part of the valve, forms in a narrow lower part an annular ^, spherical bearing (11) for an axial sealing piston (10) which penetrates the carrier (1) and which contains a bearing which corresponds to the previous one that this piston (10) has an annular chamber (14) with the sleeve (1) and directly above my AufiaQDi Lj "! IdGl, C ?? • C. e annular chamber (14) with a D a ppi" from 1 diiöf f riuncj (.15), which between the llandgr iff kop Γ (3) u nd the cover (6) is arranged opposite the arm of the handle (2?), with the peculiarity that this piston (10) is actuated by a spring (9) between a step on it and the partially narrowed inlet of the socket (8 ) is attached, is pressed against the nut, wherein the bushing is fastened inside the carrier, in particular in its upper or outer half, and slides in it. IT ' BAD Device according to claim 1, characterized in that the Bush (8) two diametrically opposed, radial Contains projections (16) which move in vertical recesses (17) of the carrier (1) and penetrate them, and the form two areas that are in contact with the prongs Fork (19) standing at the lower ends: in ab ^ esU ·: r c; Have a detachable depth profile, so dr.l? a noisy course Shifting the fork (19) one with interruptions provided movement of the bush (8), whereby a continuous and also gradual shortening of the spring (9) takes place so that different degrees of spring tension are obtained according to the different pressures that the valve is to withstand, and that the fork (19) is designed so that it is synchronized by an external lever (21) can be moved on the upper handle (22) in the vicinity of its head (3) and with an interposed therebetween Eccentric (24) is attached, which unwarisJel the tilting movement of the lever (21) in the longitudinal movement of the fork. Device according to one of the previous c?. \ ? · Ιαεπ An.srrüche, dacji'ch gekenn ze i Ehr.? t that in the end d ^ s Arrr.es di'c upper. Ha.iügriffes (22) belonging to his head (3) in relation to BATH ORIGINAL the drive lever (21) a locking element (29) arranged ivt, which is accommodated in a vertical recess (35) and which has an upper head (36) which is able to assume three positions with respect to the eccentric lever device, namely an intermediate position which corresponds to the closed position and in which the lever (21) can be freely rotated in order to regulate the limit pressure of the saucepan, a lower position which corresponds to the open position and in which the head (36) of the locking element ( 29) prevents the lever from rotating due to a lock (37) which is connected to the eccentric (24) and which, due to the change in the position of the lever (21), the head (36) of the lock 1 e me nt s (29) touches, and a third It ^ lluaj, i: i of the locking element (29) a lower Γη ». • ~ ⁱ ■ '·.] 1 un:?' ^: rn ': * · ί, d' ο is necessary in order to be able to start opening the saucepan, which can only be achieved when the lever (21) is in the "0" position, which corresponds to the opening and in which the head (36) of the locking element (29) has reached the lower base of the lever (21). Device according to one of the preceding claims, characterized in that the locking element (29) has an outer lateral BATH ORIGINAL & has a slight extension that forms a sloping surface, which touches a locking pin (31) that is constantly exposed to the pressure of a spring (32) and also with an inclined one Area is equipped according to the previous one that the height of the locking element (29) by the two handles that are independent of each other, is determined, in which case it is the lower one, by a ramp (34) in the lower handle (33) assumes a defined end position, which ramp the lower end of the locking element (29) through during the closure touches a receptacle (35) present in the handle (3.3) and pushes it down until it reaches its lower end position has reached, and that immediately thereafter the ramp (34) into which the end of the locking element in the closed position fits in, assumes its intermediate position in which the Pressure control lever (21) is free. Device according to the preceding claims, characterized in that the securing pin (31) immediately after of the inclined surface (34) touches the locking element (29), extends between the lateral arms (40) holding the locking element frame (29) and if the latter «Hch nach moved at the bottom, by the spring (32), the cen sirening pin supported, pushed forward so that their front BAD ORIGINAL jg | edges touch the seal of the saucepan i, rui cause this is deformed when opening. - End of claims -