CA2067497A1 - Cooking vessel - Google Patents
Cooking vesselInfo
- Publication number
- CA2067497A1 CA2067497A1 CA002067497A CA2067497A CA2067497A1 CA 2067497 A1 CA2067497 A1 CA 2067497A1 CA 002067497 A CA002067497 A CA 002067497A CA 2067497 A CA2067497 A CA 2067497A CA 2067497 A1 CA2067497 A1 CA 2067497A1
- Authority
- CA
- Canada
- Prior art keywords
- lid
- cooking pot
- control knob
- pot
- locking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0804—Locking devices
- A47J27/0813—Locking devices using a clamping ring or clamping segments
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
Abstract Cooking Pot The invention relates to a cooking pot, in essence comprising a pot-shaped container (1) and a lid (3), intended for closing the container (1), where the container (1) has a peripheral pot rim (2) that is bent outwardly and that, when operating a control knob (14) that can be moved on the lid (3) in the closing direction, is grasped by peripheral claws (6) that are bent inwardly towards the bottom and provided at locking segments (5) that can be moved at the lid (3) essentially parallel to the plane of the pot rim (2); and said pot rim is released again by the peripheral claws (6) when the control knob (14) is moved in the opening direction. To facilitate the opening and closing of such a cooking pot, the invention provides that the control knob can be moved axially on the lid; that, when the control knob (14) is moved axially in the closing direction, the locking segments (5) with the peripheral claws (6) are pulled radially towards the inside in the locking position; and that, when the control knob (14) is moved axially in the opening direction, the locking segments (5) with the peripheral claws (b) are moved again radially in the outward direction into the unlocking position.
(Figure 1)
(Figure 1)
Description
20~7'~9;~
Cooking PQt Specification The invention relates to n cooking pot, in particular to a pressre cooker, in essence comprising a pot-shaped container and a lid, exhibiting, e g a sealing ring, for the purpose of sealing, especially pressure-tight, the container, where the container has a peripheral pot rim that is bent down outwardly and that, when operating a control knob that can be moved on the lid in the closing direction, is grasped by peripheral claws that are bent inwardly towards the bottom and provided at locking segments that can be moved at the lid e~-entially parallel to the plane o~ the pot rim, whereas pre~erably an inner section of the locking segments is braced against one region o~ the lid, and said pot rim is released again by the p~ripheral claws when the control knob i5 moved in the opening direction Such a cooking pot designed as a pressure cooker is known from the ~P~ 139 772, where in essence aid pot compri~e~ a bottom pot and a lid unit closing the bottom pot The bottom pot has a smooth peripheral pot rim The lid unit comprises a bottom lid and an upper lid The latter is designed as a closing element, whose ~langes can grasp thc pot ri~ in the closing position To this end the upper lid exhibits two half lids; each of the half lids csn be rotated relative to the bottom lid and to the bottom pot around an axis of rotation, which is essentially parallel to the vertical geometric center axis of the pot; and~the axes o~
rotation are opposite each other and lie eccentrically relative to the~centor axis o~ the pot and with respect to this center axi~ diametrically in a~rotary part that can be rotated in the center of the bottom lid To open and close the lid manually o~
such a pressure cooker it is n-cessary to xert pres~ure on the lid unit and simultaneously ~et the control knob into a rotary motion This m~kes th- operAtion r~lati~ely inconvenient Pressure cookers are ususlly equipped with socalled ov-r pressure relief valves, which open when a speci~ied pressure within the pot is reached and thus the risk of the cooking pot bursting or :
Cooking PQt Specification The invention relates to n cooking pot, in particular to a pressre cooker, in essence comprising a pot-shaped container and a lid, exhibiting, e g a sealing ring, for the purpose of sealing, especially pressure-tight, the container, where the container has a peripheral pot rim that is bent down outwardly and that, when operating a control knob that can be moved on the lid in the closing direction, is grasped by peripheral claws that are bent inwardly towards the bottom and provided at locking segments that can be moved at the lid e~-entially parallel to the plane o~ the pot rim, whereas pre~erably an inner section of the locking segments is braced against one region o~ the lid, and said pot rim is released again by the p~ripheral claws when the control knob i5 moved in the opening direction Such a cooking pot designed as a pressure cooker is known from the ~P~ 139 772, where in essence aid pot compri~e~ a bottom pot and a lid unit closing the bottom pot The bottom pot has a smooth peripheral pot rim The lid unit comprises a bottom lid and an upper lid The latter is designed as a closing element, whose ~langes can grasp thc pot ri~ in the closing position To this end the upper lid exhibits two half lids; each of the half lids csn be rotated relative to the bottom lid and to the bottom pot around an axis of rotation, which is essentially parallel to the vertical geometric center axis of the pot; and~the axes o~
rotation are opposite each other and lie eccentrically relative to the~centor axis o~ the pot and with respect to this center axi~ diametrically in a~rotary part that can be rotated in the center of the bottom lid To open and close the lid manually o~
such a pressure cooker it is n-cessary to xert pres~ure on the lid unit and simultaneously ~et the control knob into a rotary motion This m~kes th- operAtion r~lati~ely inconvenient Pressure cookers are ususlly equipped with socalled ov-r pressure relief valves, which open when a speci~ied pressure within the pot is reached and thus the risk of the cooking pot bursting or :
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t lid unit jumping o~f of t~e bottom pot is prevented How~ver, it is desirablc to guarantee an even gre~ter protection against ~ursting Starting from this point, the object o~ the present invention i5 to propose a cooking pot that eliminates the drawbacks of the prior art and allows said cooking pot to be opened and closed with greater ease Furthermore, the possibility for greater protection against bursting should exist This problem with a cooking pot of the aforementioned kind is solved according to thr invention in that th- control knob can be moved axially on the lid; th~t, when the control knob i~
moved axially, e g when pressure is applied, in th- closing direction, the locking segments with the p~ripheraI claws are pulled radially towards the inside in the locking position; and that, when the control knob is moved axially in the opening direction, the locking ~egments with the peripheral claw5 are moved again radially in the outward direction into the unlocking position Thus, it i5 guaranteed that to lock the lid on the container one need only to press by hand on the control knob The resulting axial movement i~ converted according to the inventive idea into a radisl locking movement of the locking segments To unlock, the control knob is moved axially in the opposite direction permanently reliable function of the locking mechanism can be actualized with a simp1e construction, ~or example, in that the control knob can be moved at a guid- knob that i 5 attached ststionarily to the lid and arranged coaxially to the center axi~
of the lid The conversion of the axial movement of the control knob into the desired radial movement o~ th- locking egment-, ~n particular wh-n locking the lid o~ the cooking pot, is achi-ved in a pre~erred embodiment of the invention in that the radially inn-r end of the locking segments exhibits an operating section that extends axially away from the lid snd slopes in the radial direction inwardly in the direction of the guide knob and that proiects into the axial path of motion of the control knob When - 20~7~19~
pr .sing on the control knob, its bottom rim automatically engages with the operating sections of the locking segments, wher~upon th~ lockin~ ~gments are pulled lnwardly owlng to th-slope which the operating sections exhibit. When moving the control knob in the opposite direction, thus in tho opening direction, the locking segments can move again radially towards the outside and release again the lid, which in the locking position of the locking segments is clamped between the rim of the pot and the locking segments.
lt i~ possible to operate the lockin~ mechanism with ease of motion, especialy when the operating sections and the control knob interact with faciny, e.g. inclined guide sur~aces.
When the control knob i5 moved away ~rom the lid, thus, in the opening direction~ the locking segments are automatically guided by the control knob into their radially external unlocking position releasing the lid, when the operating sections o~ the locking segments exhibit on both ~ide~ sloped guide surfaces that interact with the correspondingly sloped guide surfaces o~ the control knob.
Said guide surfaces can be actualized in a imple manner especially when the operating sections project into a slot of the control knob.
The control knob is braced at the lid pre~erably with at least one pressure spring acting in the opening direction, so that when the control knob is released from its closing position, it is automatically guided again into its upper opening po~ition and thus~the locking segments are also auto~atically conveyed gain into~their radially external unlocking position.
Furthermore, the control knob i~ conveyed preferably out o~ it~
opening position by axial pressure into a lockabl- and unlockable closing position on the lid.
~:
To open the cooking pot, the control knob can be li~ted out o~
the locking position, e.g. by pressing again on the control knob in the locking position, whereby said control knob i5 pressed 2~S7~9~
5~ Jhtly beyond it5 ~topping point in the direction of the lid Such pressure mechanisms are well-kno~n, e g in the field of ball point pen5.
The reliability of the function of the cooking pot sccording to the invention in coniunction with ease of operation can be further improved in that the locking segments are guided slidingly and~or rollingly at the lid Thus, the lid can e~hibit guide grooves for the locking segments, where the guide grooves can also be designed in such a manner that thc locking ~egment~ can be moved radially at the lid, but cannot be completely detached from said lid The lid and the locking 6egments form in thi~ m~nner a structural unit that is simply more manipulable A high degree of safety o~ the cnoking pot i5 guaranteed if in another embodiment of the inventive idea the peripheral claws of the locking segments are designed as circular segm-nts and in this shape reach as far as possible under the rim of the pot in the locking position Thu-, a relAtively great amount of deformation work must be performed before the locking segments can detach themselves from the rim of the pot For the purpose of a uniform and reliable fit of the lid, it is especially advantageous if at least three or more locking segments are distributed over the circumference of the lid, so that the lid is held at the rim of the pot virtually uniformly over its circumference in the closing position Optimal safety can be obtained if the peripheral claws complement one another essentially over the entire circumf-rence of the lid The locking segm-nt- can con~i~t, for e~ample, of spring ~teel at lea-t reqion-by-region~
Therefore, technically and functionally it i 5 advantageous if the locking segments consist of a bracket member and the peripheral claw that are separate parts connected together by means of a jointed flange or spot connection, where preferably the bracket 2067~9~
m~ ~er consists of sprirl~ wire and the peripheral claw of a rigid U-shape.
To increase thc safety of the coo~ing pot against bursting, the invention proposes that an anti-bursting element is arranged between at least one of the locking segments and the lid. Of course~ such an additional anti-bursting safety can also be provided for other kindc of cooking pots, so that in case of a possible blocking of the safety valve that is generally provided, the lid can become slightly leaky between the rim of the pot and the rim of the lid, preferably over the entire circumference when in the closed state of the cooking pot the internal pres~ure of the pot is excessive. The release of the steam to reduce the pressure can be delayed in time by the dimension of the anti-bursting elements, so that the steam is not released too suddenly. The slight leakiness is achieved in that the lid can rise to a limited degree with its seal from the rim of the pot owing to the design and operating mode of the anti-bursting elements, but the locking ele0ents with their peripheral claws remain functional.
This can occur in a simple manner, for example~ in that with an excessive pressure load on the lid the anti-bursting element i5 deformed reversi bl y or irreversibly and sllows a specified axial move0ent of the lid with its sealing ring relative to the rim of the pot.
The anti-bursting element can be formed preferably by A locking segment itself designed at least region-wise as a resilient element.
~referably the anti-bursting element is designed as a deformable stamping of a locking segment, which is braced at the lid.
Yet in another simple embodiment of the invention the lid can also brace it~elf at one or more of the locking segments by m-an~
of at lea~t one hollow body that i6, far e~ample, roller-shaped or a resilient element, e.g. a helical or leaf-shaped spring.
The roller-shaped hollow bodies that can be compressed under raised internal pressure of the container and are provided 2~`7~9~
be ,een locking segments and lid as anti-bursting element~ serve simultaneously to reduce the frictional forces of the locking segments wi~h respect to the lid when closin~ and opening the locking mechanism To give the cooking pot of the invention an attractive external appearance, the upper lid can iut over the lid and the locking segment6 in such a manner that the locking mechanism and the radially moveable locking segments are largely covered In this case it is especially expedient i~ the upper lid is connected to the control knob and thus can move together with the control knob axially with respect to the lid In the opening position of the control knob, the upper lid is spaced relatively far apart from the lid and the locking segments, so that under flowing water a simp1e cleaning of the lid unit is possible When rlosing, the upper lid drops over the segments and the lid, 50 that besides the shielding effect against the penetration o~
contaminants into the locking mechanism, the closlng position of the lid is easy to recognize In another special embodiment of the invention the locking segment exhibits a curved intermediate section from which lateral extensions project sloping in the direction of the plane of the lid and to which the respective peripheral claw is attached Like the operating section, the curved intermediate section and the extensions can ôe bent from spring steel wire In this manner the locking segment forms in a simple manner an anti-bursting element~
Within the scope of the invention it is also possible that, ~instead of the guide surfaces of the control knob and the locking segments interacting, the axial motion of the control knob is converted into a rotary motlon of a link disk, stating from which the locking segments are s-t into op-ning and closing motion via connecting 1-9-For pressure cookers it is especially important that the sealingring always has a reliable seat on the rim of th- lid This state can be actualized within the framework of the invention in an 20~7l~
a~ .ntage~us m~nner i n that the seAling ring i 5 held by toroidal and/or nub-shaped elements at the rim of the lid. The sealing ring can be pre~sed into ~ circùmf-r~ntial groove of the lid by means of a torus, which is provided optionally with a clamping ring. With such a ring it can also be clamped into suitably shaped holding members on the rim of the lid. With nubs distributed over the circumference of the lid, the sealing ring can be snapped into the lid. The nubs li- outside a sealing lip, with which the sealing ring abuts the inner surface of the lid.
To improve the sealing function, the sealing ring can also be in~erted with an arch provided at a sealing lip into a peripheral bead of the rim of the pot.
Other goals, features, advantages and po~sible applications of the present invention follow from the following description of the embodiments with the aid of the drawings. All described and~or illustrated features form by themselves or in any logical combination the subject matter of the present invention, even independently of their summary in the claims or their reference.
Figure 1 is a diagrammatic, vertical view of a cooking pot exhibiting the invention in the unlocked state.
Figure 2 is a sectional view of the cooking pot according to Figure 1 in the locked state.
Figure 3 i5 a half top view along line A of Figure 1 and a half top view along line B of Figure 2.
Figure 4 i 5 a sectional view along line C-C of Figure 2.
Figure 5 is a sectional view alonq line D-D of Figure 3.
Figure ~ is a sectional view alonq line E-E of Figure 3.
Figure 7 is a sectional view alnng line F-F of Fiqure 3.
Figure B is a vertical view in the region of the lid of another embodiment of the inventian in the locked state.
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Figure q is a ~ectional view along line C-D of Figure ~ in the region o~ thr combination compri~ing control knob and Quidr knrb and serving as a handle.
Figure 10 i5 a section~l view along line E-F of Figure ~.
Figure 11 is a view Y of Figure 10.
Figure 12 is a vertical view in the region of the lid, partially cut away, of still another embodiment of the invention in the unlocked state.
Figure 1~ is a top view of the lid of Figùre 12 with locking segments, as seen frDm the direction XIlI.
Figures 14a and 14b are fragmentary views of the lid of Figure 1~, seen from direction XIv, and in particular in the normal state (Figure 14a) and in the anti-bursting state ~Figure 14b).
Fiqure~ 15a ~nd 15b are vertical views of the lid of Figur-~ 14a and 14b along the line Xva-XVa or Xvb-Xvb.
Figure 16 is a top view of the locking element without peripheral claw for the lid according to Figures 12 to 15.
Figures 17a and 17b are inclined views and side views of another bracket ember of a locking segment of the invention.
Figure 18 shows a bracket member according to Figures 17a snd 17b with the two assigned peripheral claws.
Figure 1~ i5 a sehematic view of another possibility for operating the peripheraI claws.
Figure~ 20 to 22 are partl~l Vi-W5 0~ the lid and the rim of the pot in order to illustrate various ~ealing rings acc~rding to the invention.
According to Figure 1, a lid 3, provided with a sealing ring 4, 2G~7~9~
i 5 ~1 ac~d on a cont~i ner 1 equipped wi th a pot rim 2 and designed as a pot. T~e pot rim 2 is designed as a pouring rim with an internal p~ripheral bead 33, an outwardly adjoining, essentially planar sealing surface 34 that is vertical to the center axis M, and a rim section 35 that is attached externally to said sealing surf~ce and i5 bent towards the bottom slopinyly? where the latter 4acilitates the centering of the lid ~, which exhibits a rim flange 42 that is bent first towards the bottom and then towards the outside and has an inclined face 36 ~t the same time the sealing ring 4 of the sealinq lip ~7 rests on the sealing surface 34 of the pot rim 2 Several, pre~erably 40ur locking segments 5 that are uniformly distributed over the circumference o4 the lid rest on lid 3 and are guide along said rim The outer end of the locking segments S
has ~ downwardly and inwardly bent peripheral claw 6, which i5 dimensioned in such a manner that in the locking position shown in Figure 2, said claw reaches under the pot rim 2 when lid 3 is clamped between the locking segments 5 and pot rim 2 and, thus, fastens the lid ~ by means of the sealing rings 4 50 as to be pressure-tight at container 1 ~t the same time lid 3 with -region 28, located in the vicinity of its rim, i9 braced against an external section 27 of the locking segments 5 A guide knob 16, where a control knob 14 can be moved axially, is fastened to lid 3~ ~s soon as the control knob 14 has reached i~s bottom closing position with respect to the stationary guide knob 16 by pressing in the direction D from the top on the control knob 14, as shown in Figure 2 When the control knob 14 i5 trans4erred 4rom its upper opening position into its bottom closing posi tion, the locking segments 5 are pulled inwardly into the locking position owing to the interacting sloped guide surfaces 29, 30; in said loeking position the inwardly bent sections of the locking claws 6 reach under the pot rim 2 50 as to lock it while pressing the sealing lip 37 o~ lid 3 aoainst the sealing sur4ace 34 In the closing posltion the upper 4aee- of the control knob 14 and the guide knob 1~ align, making the closing position visible and the control knob 14 is stopped by means of ~ sliding bolt 1~ with respect to the guide knob 16 The upper end o~ the sliding bolt 19 extended longitudinally in the 2~67~9~
a~ al direction has a bolt 20 which points outwardly in the r~dàal direction and projects into a recess o~ an ins~rt 2~
permanently attached to the control knob 14, wherein thc sliding bolt 1~ with insert 23 and thus also with the control knob 14 can be moved Insert 23 is provided to make it easier to assemble the control knob 14 and guide knob 16 At the bottom end of the sliding bolt 19 another bolt 21 projects inwardly in the radial direction into a groove guide 22 that is known, e g , from ball point pens and defines both the opening position ~Figure 1) and the closing position (Figure 2) of the control knob 14 and determines these two end positions If the closing mechanism is to be released, pressing again in direction D on the control knob 14 suffices, and bolt 21 unlocks itself from the groove guid- 22, so that the control knob ~4 with it~ inner part 17 is pressed again into the opening position, counter to the direction of arrow D, by means of a pressure spring 18 braced at lid 3, whereby the lockinq segments 5 move again into their radially external opening position, counter to the direction of motion ~, by means of the slot guide of the operating sections 7 It is appar-nt from Figure 3 that in the top view the locking segments 5 exhibit radial legs, on whose radially external ends the peripheral claws hav- the shape of circular ring segments If, for example, four such locking segments S are provided at angular intervals of 90, of which onlv two are shown in Figure 3, the peripheral claws ~ virtually occupy the entire circumference of lid 3 and thus the pot rim 2, except for a 51 i ght gaps As especially apparent from Figures 1 and 2 and the view o~
Figure 6, anti-bursting e}ements 12 designed as roller-shaped hollow bodies 15 are located in the vicinity of the pot rim 2 between aections 27 of the locking segment~ 5 and the regions 7e of lid ~ The anti-bur-ting elem-nts 12 ar- caught between a rsised edge of lid ~ in who~e inn-r qroove the sealing ring 4 is clamped and a recess of the bottom side of the respectlve lockinq segment S Thus, the radial movement of the locking segments S
relative to lid 3 occurs in part slidingly and in part rollingly, a state that facilitates the operation The pressure under which the hollow bodies`15 bend can be readily determined by the wall , ' .
2067~9~
th _kness and length of the roller-shaped hollow bodie~ g If the excess pressure, which can deform or dent the hollow bodies 15, becomes unallowable in the cooking pot, lid 3 with the 6ealing ring 4 can be lifted slightly from the top from the flat sealing surface 34 relative to the locking segments 5, whereby a desired pressure release takes place and the cooking pot is prevented from bursting As apparent from Figure 7, the anti-bursting elements 12 can al50 he designed a stampings 24 of the locking segments 5, which in this case are made pre~erably o~ superrefined stecl plate Baséd on the wall thickness of the locking egment~ S ln the region of the stampings 24 and their length, the pressure in turn can be determined, ~rom which lid 3 with sealing ring 4 can move slightly axially relative to the locking segments 5 while de40rming stampinqs 24, in order to relieve the pressure by means of the slight leakines~ over the entire pot rim 2~
~s apparent from Figures 1 and 2, the upper expanded knob region of the guide knob 16 has a depression 40, in which B pressure and~or temperature indicator can be provided To this end, the guide knob 16 i5 also connected preferably thermoconductively to lid 3 by means of a guide and holding rod enveloped by a collar 3~ of lid ~
As also best seen ~rom Figures 1 and 2, an upper lid 25 juts over lid 3 with the locking segments S The upper lid 25 is connected to the control knob 14 nd, there~ore, also moves with it axially In the opening position shown in Figure 1, upper lid 25 i6 spaced rel~tively far ~rom lid 3, so that the entire lid unit - also the moveable parts - can be easily cleaned and dried In the closing position according to Figure 2, the upper lid 25 rests with it~ entire outer circum4-rence in the edge region o~
the locking s-gment~ 51 wher-as a downwardly b-nt edge 41ange 41 extending over the entire circum~erence enclosea th- unit comprising lid ~ and locking segments 5 over a part o4 their height As apparont from the sectional view o4 Figure S, a conventional cooking valve ~aroma valve~ 10 and at least one conventional over 2~67~
pr~_sure relie~ valve 11 can be mounted on lid 3 The cooking valve 10 can be operated by means of a pu~h rod 2~ guided axially in the control knob 14 in order to r~lea~r ~h~ pre~sure, a~
desired, ~rom inside the pot A ring-shaped guard of both valves 10, 11 against 50i 1 i ng due to the product to be cooked i 5 attached to the bottom end of the section o~ the guide and holding rod Df the guide knob 16 that projects through lid The embodiment shown in Figure ~ di~fers ~rom the embodiment explained ebove essentially due to a somewhat different shape o~
the control knob 14 interacting with the guide knob 1~ and the operating sections 7 of the locking segments 5 and the bracing of the operating segments 5 at their outer end by means of resilient elements 41, which are designed as helical springs and which a~sume the ~unction of the anti-bursting elements 12, which remain operational even after a maximum internal pressure has been exceeded in the pot In this embodiment the upper lid 25 can be readily installed and replaced between two nuts 43 screwed on the outer circumference o~ the control knob 14 ~5 al~o apparent from Figure e, the ~liding of the locking segments 5 at lid 3 can be guaranteed by a high temperature resistant, disk-shaped element 44, whereby the frictional force that becomes ef~ective between the locking segments 5 and lid 3 is 50 low that it can be readily overcome by the pressure springs 18 acting as return springs Figure 9 shows how the control knob 14 can be braced at l~id 3 by means of several pressure spring~ 18 The control knob 14 is locked relative to the guide knob 1~ both in the upper opening position ~Figure 10) and in the bottom closing position (Figure 9) as in the first embodiment by means of a groove-pin mechanism 22, 42, as shown in Figure lI and as is well-known ~rom the field of ball point pens This locking limits the path of the control knob 14 relative to the fitationary guide knob 16 upward agaln~t the effect of the presfiure ~prings 18 and holds the control knob 14 securely in its bottom closing position, as shown in Figure 9, until pressure is applied again on the control knob 14 from the top and the lock i 5 released - `: , ' . ' 2~7'~9~
~n _he embodiment of the lid shown in Fi~ures 12 to lb, the locking segments S comprise a bracket member 5 with operating section 7 and peripheral claw 6 as separate parts. They are cDnnected together by means of a bead with a holding section 45, which is bent out of the external wall of the peripheral claw 6.
The bracket member 5 consists of ~ spring wire, which ic bent into a central U-shaped section, to whose two legs wing-shaped extensions 47 are attached outwardly in the circumferential direction ~Figure 16~. ~5 especially apparent from Figure 14a, the extension~ 47 are slightly bent from the horizontal plane, 50 that lid 3 with sealing rin~ 4 can rise from the pot rim 2 relative to the peripheral claws 6 when a predetermined excess pressure is exceeded within the pot; and a circumferential gap opens to reduce the pressure. Thus, the bracket member S acts as an anti-bursting element. The peripheral claw 6 consists of a rigid U pro~ile, which normally guarantees a pressure-tight locking of lid 3~with respect to the pot rim 2 and holds lid 3 securely on pot rim 2 even if there is a need to safeguard against bursting, even though the pressure is reduced.
Figures 17a to 18 show a bracket member 5 accordinq to a different embodiment~ which is also designed as a resilient anti-bursting element f~r lid 3 owing to its shape. The spring force vertical to the plane of the lid is generated by a curved intermediate section 48 to which the extensions 47, sloped relative to the plane of the lid, are attached, as shown the best in Figure 17b.
Figure 19 shows an embodiment, according to which the axial movement of the control knob is converted into a rotary movement of a link disk 49, in order to sccomplish with connecting legs 50 the displacement of the peripheral claws 6 from the opening position into the locking position and vice v-rsa.
Figures 20 to 22 show vsriou~ embodiments of the ~ealing rinq 4.
~ccording to Figure 20, the sesling ring 4 has a torus 51 with an outer circumferential surface that is essentially circularly cylindrical, in order to be accommodated by clamping in suitably shaped~ curved straps S2 of the lid rim. Two sealing lips 37 project inwardly from the torus 51, in order, on the one hand, to 2~67~9~
be araced against the inner ~urf ACe of lid 3 and, on the other hand, against the sealing surface 34 This i5 accomplished in such ~ m~nner that a5 the internal pre-~ure o~ the pot ri s-~ the sealing force increR~es The sealing ring 4, according to Figure 21, can be snapped into the lid rim by means of nubs 53 distributed over the circumference The upper sealing lip 37 rests on the inner surface of lid 3 The bottom sealing lip 37 has an arch 54, with which it is inserted into bead 33 of the pot rim 2 The sealing ring 4, according to Figure 22, has an upper torus SS, which is pressed into a circumferential groove S7 of lid 3 by means of a clamping ring 56 In the region of the bottom sealing lip 37, this sealing ring 4 is designcd in a manner analogous to that according to Figure 21 2~6749~
Li ~ _ of ref erence numeral 5 contai ner 2 pot rim 3 lid 4 sealing ring locking segments 5' bracket member 6 peripheral claws 7 operating sections 8 guide grooves 9 ring aroma valve 11 over pressure relief valve 12 anti-bursting element ~3 slot 14 control knob roller-shaped hollow bodies 16 guide knob 17 inner part 18 pressure springs 19 sliding bolt bolt 21 bolt 22 groove guide 23 insert 24 stamping upper lid 26 push rod 27 ~section 28 region 29 guide surface ~ guide sur~ac-3I guide ur~ac-32 guid- sur~ace 33 bead 34 sealing sur~ace 35~ rim section 36 ~ace 37 sealing lip 2~67~
3t collar 39 ring groove depression 41 resilient elements 42 pin 4~ nuts 44 element 4S holding section 46 section 47 extensions 4~ intermediate section 49 link disk connecting leg 51 torus 52 strap 5~ nubs 54 arch tQrus 56 clamping ring M center axi 5
t lid unit jumping o~f of t~e bottom pot is prevented How~ver, it is desirablc to guarantee an even gre~ter protection against ~ursting Starting from this point, the object o~ the present invention i5 to propose a cooking pot that eliminates the drawbacks of the prior art and allows said cooking pot to be opened and closed with greater ease Furthermore, the possibility for greater protection against bursting should exist This problem with a cooking pot of the aforementioned kind is solved according to thr invention in that th- control knob can be moved axially on the lid; th~t, when the control knob i~
moved axially, e g when pressure is applied, in th- closing direction, the locking segments with the p~ripheraI claws are pulled radially towards the inside in the locking position; and that, when the control knob is moved axially in the opening direction, the locking ~egments with the peripheral claw5 are moved again radially in the outward direction into the unlocking position Thus, it i5 guaranteed that to lock the lid on the container one need only to press by hand on the control knob The resulting axial movement i~ converted according to the inventive idea into a radisl locking movement of the locking segments To unlock, the control knob is moved axially in the opposite direction permanently reliable function of the locking mechanism can be actualized with a simp1e construction, ~or example, in that the control knob can be moved at a guid- knob that i 5 attached ststionarily to the lid and arranged coaxially to the center axi~
of the lid The conversion of the axial movement of the control knob into the desired radial movement o~ th- locking egment-, ~n particular wh-n locking the lid o~ the cooking pot, is achi-ved in a pre~erred embodiment of the invention in that the radially inn-r end of the locking segments exhibits an operating section that extends axially away from the lid snd slopes in the radial direction inwardly in the direction of the guide knob and that proiects into the axial path of motion of the control knob When - 20~7~19~
pr .sing on the control knob, its bottom rim automatically engages with the operating sections of the locking segments, wher~upon th~ lockin~ ~gments are pulled lnwardly owlng to th-slope which the operating sections exhibit. When moving the control knob in the opposite direction, thus in tho opening direction, the locking segments can move again radially towards the outside and release again the lid, which in the locking position of the locking segments is clamped between the rim of the pot and the locking segments.
lt i~ possible to operate the lockin~ mechanism with ease of motion, especialy when the operating sections and the control knob interact with faciny, e.g. inclined guide sur~aces.
When the control knob i5 moved away ~rom the lid, thus, in the opening direction~ the locking segments are automatically guided by the control knob into their radially external unlocking position releasing the lid, when the operating sections o~ the locking segments exhibit on both ~ide~ sloped guide surfaces that interact with the correspondingly sloped guide surfaces o~ the control knob.
Said guide surfaces can be actualized in a imple manner especially when the operating sections project into a slot of the control knob.
The control knob is braced at the lid pre~erably with at least one pressure spring acting in the opening direction, so that when the control knob is released from its closing position, it is automatically guided again into its upper opening po~ition and thus~the locking segments are also auto~atically conveyed gain into~their radially external unlocking position.
Furthermore, the control knob i~ conveyed preferably out o~ it~
opening position by axial pressure into a lockabl- and unlockable closing position on the lid.
~:
To open the cooking pot, the control knob can be li~ted out o~
the locking position, e.g. by pressing again on the control knob in the locking position, whereby said control knob i5 pressed 2~S7~9~
5~ Jhtly beyond it5 ~topping point in the direction of the lid Such pressure mechanisms are well-kno~n, e g in the field of ball point pen5.
The reliability of the function of the cooking pot sccording to the invention in coniunction with ease of operation can be further improved in that the locking segments are guided slidingly and~or rollingly at the lid Thus, the lid can e~hibit guide grooves for the locking segments, where the guide grooves can also be designed in such a manner that thc locking ~egment~ can be moved radially at the lid, but cannot be completely detached from said lid The lid and the locking 6egments form in thi~ m~nner a structural unit that is simply more manipulable A high degree of safety o~ the cnoking pot i5 guaranteed if in another embodiment of the inventive idea the peripheral claws of the locking segments are designed as circular segm-nts and in this shape reach as far as possible under the rim of the pot in the locking position Thu-, a relAtively great amount of deformation work must be performed before the locking segments can detach themselves from the rim of the pot For the purpose of a uniform and reliable fit of the lid, it is especially advantageous if at least three or more locking segments are distributed over the circumference of the lid, so that the lid is held at the rim of the pot virtually uniformly over its circumference in the closing position Optimal safety can be obtained if the peripheral claws complement one another essentially over the entire circumf-rence of the lid The locking segm-nt- can con~i~t, for e~ample, of spring ~teel at lea-t reqion-by-region~
Therefore, technically and functionally it i 5 advantageous if the locking segments consist of a bracket member and the peripheral claw that are separate parts connected together by means of a jointed flange or spot connection, where preferably the bracket 2067~9~
m~ ~er consists of sprirl~ wire and the peripheral claw of a rigid U-shape.
To increase thc safety of the coo~ing pot against bursting, the invention proposes that an anti-bursting element is arranged between at least one of the locking segments and the lid. Of course~ such an additional anti-bursting safety can also be provided for other kindc of cooking pots, so that in case of a possible blocking of the safety valve that is generally provided, the lid can become slightly leaky between the rim of the pot and the rim of the lid, preferably over the entire circumference when in the closed state of the cooking pot the internal pres~ure of the pot is excessive. The release of the steam to reduce the pressure can be delayed in time by the dimension of the anti-bursting elements, so that the steam is not released too suddenly. The slight leakiness is achieved in that the lid can rise to a limited degree with its seal from the rim of the pot owing to the design and operating mode of the anti-bursting elements, but the locking ele0ents with their peripheral claws remain functional.
This can occur in a simple manner, for example~ in that with an excessive pressure load on the lid the anti-bursting element i5 deformed reversi bl y or irreversibly and sllows a specified axial move0ent of the lid with its sealing ring relative to the rim of the pot.
The anti-bursting element can be formed preferably by A locking segment itself designed at least region-wise as a resilient element.
~referably the anti-bursting element is designed as a deformable stamping of a locking segment, which is braced at the lid.
Yet in another simple embodiment of the invention the lid can also brace it~elf at one or more of the locking segments by m-an~
of at lea~t one hollow body that i6, far e~ample, roller-shaped or a resilient element, e.g. a helical or leaf-shaped spring.
The roller-shaped hollow bodies that can be compressed under raised internal pressure of the container and are provided 2~`7~9~
be ,een locking segments and lid as anti-bursting element~ serve simultaneously to reduce the frictional forces of the locking segments wi~h respect to the lid when closin~ and opening the locking mechanism To give the cooking pot of the invention an attractive external appearance, the upper lid can iut over the lid and the locking segment6 in such a manner that the locking mechanism and the radially moveable locking segments are largely covered In this case it is especially expedient i~ the upper lid is connected to the control knob and thus can move together with the control knob axially with respect to the lid In the opening position of the control knob, the upper lid is spaced relatively far apart from the lid and the locking segments, so that under flowing water a simp1e cleaning of the lid unit is possible When rlosing, the upper lid drops over the segments and the lid, 50 that besides the shielding effect against the penetration o~
contaminants into the locking mechanism, the closlng position of the lid is easy to recognize In another special embodiment of the invention the locking segment exhibits a curved intermediate section from which lateral extensions project sloping in the direction of the plane of the lid and to which the respective peripheral claw is attached Like the operating section, the curved intermediate section and the extensions can ôe bent from spring steel wire In this manner the locking segment forms in a simple manner an anti-bursting element~
Within the scope of the invention it is also possible that, ~instead of the guide surfaces of the control knob and the locking segments interacting, the axial motion of the control knob is converted into a rotary motlon of a link disk, stating from which the locking segments are s-t into op-ning and closing motion via connecting 1-9-For pressure cookers it is especially important that the sealingring always has a reliable seat on the rim of th- lid This state can be actualized within the framework of the invention in an 20~7l~
a~ .ntage~us m~nner i n that the seAling ring i 5 held by toroidal and/or nub-shaped elements at the rim of the lid. The sealing ring can be pre~sed into ~ circùmf-r~ntial groove of the lid by means of a torus, which is provided optionally with a clamping ring. With such a ring it can also be clamped into suitably shaped holding members on the rim of the lid. With nubs distributed over the circumference of the lid, the sealing ring can be snapped into the lid. The nubs li- outside a sealing lip, with which the sealing ring abuts the inner surface of the lid.
To improve the sealing function, the sealing ring can also be in~erted with an arch provided at a sealing lip into a peripheral bead of the rim of the pot.
Other goals, features, advantages and po~sible applications of the present invention follow from the following description of the embodiments with the aid of the drawings. All described and~or illustrated features form by themselves or in any logical combination the subject matter of the present invention, even independently of their summary in the claims or their reference.
Figure 1 is a diagrammatic, vertical view of a cooking pot exhibiting the invention in the unlocked state.
Figure 2 is a sectional view of the cooking pot according to Figure 1 in the locked state.
Figure 3 i5 a half top view along line A of Figure 1 and a half top view along line B of Figure 2.
Figure 4 i 5 a sectional view along line C-C of Figure 2.
Figure 5 is a sectional view alonq line D-D of Figure 3.
Figure ~ is a sectional view alonq line E-E of Figure 3.
Figure 7 is a sectional view alnng line F-F of Fiqure 3.
Figure B is a vertical view in the region of the lid of another embodiment of the inventian in the locked state.
2067~9~
Figure q is a ~ectional view along line C-D of Figure ~ in the region o~ thr combination compri~ing control knob and Quidr knrb and serving as a handle.
Figure 10 i5 a section~l view along line E-F of Figure ~.
Figure 11 is a view Y of Figure 10.
Figure 12 is a vertical view in the region of the lid, partially cut away, of still another embodiment of the invention in the unlocked state.
Figure 1~ is a top view of the lid of Figùre 12 with locking segments, as seen frDm the direction XIlI.
Figures 14a and 14b are fragmentary views of the lid of Figure 1~, seen from direction XIv, and in particular in the normal state (Figure 14a) and in the anti-bursting state ~Figure 14b).
Fiqure~ 15a ~nd 15b are vertical views of the lid of Figur-~ 14a and 14b along the line Xva-XVa or Xvb-Xvb.
Figure 16 is a top view of the locking element without peripheral claw for the lid according to Figures 12 to 15.
Figures 17a and 17b are inclined views and side views of another bracket ember of a locking segment of the invention.
Figure 18 shows a bracket member according to Figures 17a snd 17b with the two assigned peripheral claws.
Figure 1~ i5 a sehematic view of another possibility for operating the peripheraI claws.
Figure~ 20 to 22 are partl~l Vi-W5 0~ the lid and the rim of the pot in order to illustrate various ~ealing rings acc~rding to the invention.
According to Figure 1, a lid 3, provided with a sealing ring 4, 2G~7~9~
i 5 ~1 ac~d on a cont~i ner 1 equipped wi th a pot rim 2 and designed as a pot. T~e pot rim 2 is designed as a pouring rim with an internal p~ripheral bead 33, an outwardly adjoining, essentially planar sealing surface 34 that is vertical to the center axis M, and a rim section 35 that is attached externally to said sealing surf~ce and i5 bent towards the bottom slopinyly? where the latter 4acilitates the centering of the lid ~, which exhibits a rim flange 42 that is bent first towards the bottom and then towards the outside and has an inclined face 36 ~t the same time the sealing ring 4 of the sealinq lip ~7 rests on the sealing surface 34 of the pot rim 2 Several, pre~erably 40ur locking segments 5 that are uniformly distributed over the circumference o4 the lid rest on lid 3 and are guide along said rim The outer end of the locking segments S
has ~ downwardly and inwardly bent peripheral claw 6, which i5 dimensioned in such a manner that in the locking position shown in Figure 2, said claw reaches under the pot rim 2 when lid 3 is clamped between the locking segments 5 and pot rim 2 and, thus, fastens the lid ~ by means of the sealing rings 4 50 as to be pressure-tight at container 1 ~t the same time lid 3 with -region 28, located in the vicinity of its rim, i9 braced against an external section 27 of the locking segments 5 A guide knob 16, where a control knob 14 can be moved axially, is fastened to lid 3~ ~s soon as the control knob 14 has reached i~s bottom closing position with respect to the stationary guide knob 16 by pressing in the direction D from the top on the control knob 14, as shown in Figure 2 When the control knob 14 i5 trans4erred 4rom its upper opening position into its bottom closing posi tion, the locking segments 5 are pulled inwardly into the locking position owing to the interacting sloped guide surfaces 29, 30; in said loeking position the inwardly bent sections of the locking claws 6 reach under the pot rim 2 50 as to lock it while pressing the sealing lip 37 o~ lid 3 aoainst the sealing sur4ace 34 In the closing posltion the upper 4aee- of the control knob 14 and the guide knob 1~ align, making the closing position visible and the control knob 14 is stopped by means of ~ sliding bolt 1~ with respect to the guide knob 16 The upper end o~ the sliding bolt 19 extended longitudinally in the 2~67~9~
a~ al direction has a bolt 20 which points outwardly in the r~dàal direction and projects into a recess o~ an ins~rt 2~
permanently attached to the control knob 14, wherein thc sliding bolt 1~ with insert 23 and thus also with the control knob 14 can be moved Insert 23 is provided to make it easier to assemble the control knob 14 and guide knob 16 At the bottom end of the sliding bolt 19 another bolt 21 projects inwardly in the radial direction into a groove guide 22 that is known, e g , from ball point pens and defines both the opening position ~Figure 1) and the closing position (Figure 2) of the control knob 14 and determines these two end positions If the closing mechanism is to be released, pressing again in direction D on the control knob 14 suffices, and bolt 21 unlocks itself from the groove guid- 22, so that the control knob ~4 with it~ inner part 17 is pressed again into the opening position, counter to the direction of arrow D, by means of a pressure spring 18 braced at lid 3, whereby the lockinq segments 5 move again into their radially external opening position, counter to the direction of motion ~, by means of the slot guide of the operating sections 7 It is appar-nt from Figure 3 that in the top view the locking segments 5 exhibit radial legs, on whose radially external ends the peripheral claws hav- the shape of circular ring segments If, for example, four such locking segments S are provided at angular intervals of 90, of which onlv two are shown in Figure 3, the peripheral claws ~ virtually occupy the entire circumference of lid 3 and thus the pot rim 2, except for a 51 i ght gaps As especially apparent from Figures 1 and 2 and the view o~
Figure 6, anti-bursting e}ements 12 designed as roller-shaped hollow bodies 15 are located in the vicinity of the pot rim 2 between aections 27 of the locking segment~ 5 and the regions 7e of lid ~ The anti-bur-ting elem-nts 12 ar- caught between a rsised edge of lid ~ in who~e inn-r qroove the sealing ring 4 is clamped and a recess of the bottom side of the respectlve lockinq segment S Thus, the radial movement of the locking segments S
relative to lid 3 occurs in part slidingly and in part rollingly, a state that facilitates the operation The pressure under which the hollow bodies`15 bend can be readily determined by the wall , ' .
2067~9~
th _kness and length of the roller-shaped hollow bodie~ g If the excess pressure, which can deform or dent the hollow bodies 15, becomes unallowable in the cooking pot, lid 3 with the 6ealing ring 4 can be lifted slightly from the top from the flat sealing surface 34 relative to the locking segments 5, whereby a desired pressure release takes place and the cooking pot is prevented from bursting As apparent from Figure 7, the anti-bursting elements 12 can al50 he designed a stampings 24 of the locking segments 5, which in this case are made pre~erably o~ superrefined stecl plate Baséd on the wall thickness of the locking egment~ S ln the region of the stampings 24 and their length, the pressure in turn can be determined, ~rom which lid 3 with sealing ring 4 can move slightly axially relative to the locking segments 5 while de40rming stampinqs 24, in order to relieve the pressure by means of the slight leakines~ over the entire pot rim 2~
~s apparent from Figures 1 and 2, the upper expanded knob region of the guide knob 16 has a depression 40, in which B pressure and~or temperature indicator can be provided To this end, the guide knob 16 i5 also connected preferably thermoconductively to lid 3 by means of a guide and holding rod enveloped by a collar 3~ of lid ~
As also best seen ~rom Figures 1 and 2, an upper lid 25 juts over lid 3 with the locking segments S The upper lid 25 is connected to the control knob 14 nd, there~ore, also moves with it axially In the opening position shown in Figure 1, upper lid 25 i6 spaced rel~tively far ~rom lid 3, so that the entire lid unit - also the moveable parts - can be easily cleaned and dried In the closing position according to Figure 2, the upper lid 25 rests with it~ entire outer circum4-rence in the edge region o~
the locking s-gment~ 51 wher-as a downwardly b-nt edge 41ange 41 extending over the entire circum~erence enclosea th- unit comprising lid ~ and locking segments 5 over a part o4 their height As apparont from the sectional view o4 Figure S, a conventional cooking valve ~aroma valve~ 10 and at least one conventional over 2~67~
pr~_sure relie~ valve 11 can be mounted on lid 3 The cooking valve 10 can be operated by means of a pu~h rod 2~ guided axially in the control knob 14 in order to r~lea~r ~h~ pre~sure, a~
desired, ~rom inside the pot A ring-shaped guard of both valves 10, 11 against 50i 1 i ng due to the product to be cooked i 5 attached to the bottom end of the section o~ the guide and holding rod Df the guide knob 16 that projects through lid The embodiment shown in Figure ~ di~fers ~rom the embodiment explained ebove essentially due to a somewhat different shape o~
the control knob 14 interacting with the guide knob 1~ and the operating sections 7 of the locking segments 5 and the bracing of the operating segments 5 at their outer end by means of resilient elements 41, which are designed as helical springs and which a~sume the ~unction of the anti-bursting elements 12, which remain operational even after a maximum internal pressure has been exceeded in the pot In this embodiment the upper lid 25 can be readily installed and replaced between two nuts 43 screwed on the outer circumference o~ the control knob 14 ~5 al~o apparent from Figure e, the ~liding of the locking segments 5 at lid 3 can be guaranteed by a high temperature resistant, disk-shaped element 44, whereby the frictional force that becomes ef~ective between the locking segments 5 and lid 3 is 50 low that it can be readily overcome by the pressure springs 18 acting as return springs Figure 9 shows how the control knob 14 can be braced at l~id 3 by means of several pressure spring~ 18 The control knob 14 is locked relative to the guide knob 1~ both in the upper opening position ~Figure 10) and in the bottom closing position (Figure 9) as in the first embodiment by means of a groove-pin mechanism 22, 42, as shown in Figure lI and as is well-known ~rom the field of ball point pens This locking limits the path of the control knob 14 relative to the fitationary guide knob 16 upward agaln~t the effect of the presfiure ~prings 18 and holds the control knob 14 securely in its bottom closing position, as shown in Figure 9, until pressure is applied again on the control knob 14 from the top and the lock i 5 released - `: , ' . ' 2~7'~9~
~n _he embodiment of the lid shown in Fi~ures 12 to lb, the locking segments S comprise a bracket member 5 with operating section 7 and peripheral claw 6 as separate parts. They are cDnnected together by means of a bead with a holding section 45, which is bent out of the external wall of the peripheral claw 6.
The bracket member 5 consists of ~ spring wire, which ic bent into a central U-shaped section, to whose two legs wing-shaped extensions 47 are attached outwardly in the circumferential direction ~Figure 16~. ~5 especially apparent from Figure 14a, the extension~ 47 are slightly bent from the horizontal plane, 50 that lid 3 with sealing rin~ 4 can rise from the pot rim 2 relative to the peripheral claws 6 when a predetermined excess pressure is exceeded within the pot; and a circumferential gap opens to reduce the pressure. Thus, the bracket member S acts as an anti-bursting element. The peripheral claw 6 consists of a rigid U pro~ile, which normally guarantees a pressure-tight locking of lid 3~with respect to the pot rim 2 and holds lid 3 securely on pot rim 2 even if there is a need to safeguard against bursting, even though the pressure is reduced.
Figures 17a to 18 show a bracket member 5 accordinq to a different embodiment~ which is also designed as a resilient anti-bursting element f~r lid 3 owing to its shape. The spring force vertical to the plane of the lid is generated by a curved intermediate section 48 to which the extensions 47, sloped relative to the plane of the lid, are attached, as shown the best in Figure 17b.
Figure 19 shows an embodiment, according to which the axial movement of the control knob is converted into a rotary movement of a link disk 49, in order to sccomplish with connecting legs 50 the displacement of the peripheral claws 6 from the opening position into the locking position and vice v-rsa.
Figures 20 to 22 show vsriou~ embodiments of the ~ealing rinq 4.
~ccording to Figure 20, the sesling ring 4 has a torus 51 with an outer circumferential surface that is essentially circularly cylindrical, in order to be accommodated by clamping in suitably shaped~ curved straps S2 of the lid rim. Two sealing lips 37 project inwardly from the torus 51, in order, on the one hand, to 2~67~9~
be araced against the inner ~urf ACe of lid 3 and, on the other hand, against the sealing surface 34 This i5 accomplished in such ~ m~nner that a5 the internal pre-~ure o~ the pot ri s-~ the sealing force increR~es The sealing ring 4, according to Figure 21, can be snapped into the lid rim by means of nubs 53 distributed over the circumference The upper sealing lip 37 rests on the inner surface of lid 3 The bottom sealing lip 37 has an arch 54, with which it is inserted into bead 33 of the pot rim 2 The sealing ring 4, according to Figure 22, has an upper torus SS, which is pressed into a circumferential groove S7 of lid 3 by means of a clamping ring 56 In the region of the bottom sealing lip 37, this sealing ring 4 is designcd in a manner analogous to that according to Figure 21 2~6749~
Li ~ _ of ref erence numeral 5 contai ner 2 pot rim 3 lid 4 sealing ring locking segments 5' bracket member 6 peripheral claws 7 operating sections 8 guide grooves 9 ring aroma valve 11 over pressure relief valve 12 anti-bursting element ~3 slot 14 control knob roller-shaped hollow bodies 16 guide knob 17 inner part 18 pressure springs 19 sliding bolt bolt 21 bolt 22 groove guide 23 insert 24 stamping upper lid 26 push rod 27 ~section 28 region 29 guide surface ~ guide sur~ac-3I guide ur~ac-32 guid- sur~ace 33 bead 34 sealing sur~ace 35~ rim section 36 ~ace 37 sealing lip 2~67~
3t collar 39 ring groove depression 41 resilient elements 42 pin 4~ nuts 44 element 4S holding section 46 section 47 extensions 4~ intermediate section 49 link disk connecting leg 51 torus 52 strap 5~ nubs 54 arch tQrus 56 clamping ring M center axi 5
Claims (26)
1. Cooking pot, in particular a pressure cooker, in essence comprising a pot-shaped container (1) and a lid (3), exhibiting, e.g., a sealing ring (4) for the purpose of closing the container (1), where the container (1) has a peripheral pot rim (2) that is bent down outwardly and that, when operating a control knob (14) that can be moved on the lid (3) in the closing direction, is grasped by peripheral claws (6) that are bent inwardly towards the bottom and provided at locking segments (5) that can be moved at the lid (3) essentially parallel to the plane of the pot rim (2); and said pot rim is released again by the peripheral claws (6) when the control knob (14) is moved in the opening direction, wherein the control knob (14) can be moved axially on the lid (3), wherein, when the control knob (14) is moved axially in the closing direction, the locking segments (5) with the peripheral claws (6) are pulled radially towards the inside in the locking position; and wherein, when the control knob (14) is moved axially in the opening direction, the locking segments (5) with the peripheral claws (6) are moved again radially in the outward direction into the unlocking position.
2. Cooking pot, as claimed in claim 1, wherein the control knob (14) can be moved at a guide knob (16) that is attached stationarily to the lid (3) essentially coaxially to the center axis (M) of the lid.
3. Cooking pot, as claimed in claim 2, wherein the radially inner end of the locking segments (5) exhibits an operating section (7) that extends axially away from the lid (1) and slopes in the radial direction inwardly in the direction of the guide knob (16) and that projects into the axial path of motion of the control knob (14).
4. Cooking pot, as claimed in claim 3, wherein the operating sections (7) and the control knob (14) interact with opposing guide surfaces (29 to 32).
5. Cooking pot, as claimed in claim 3 or 4, wherein the operating sections (7) exhibit on both sides sloped guide surfaces that interact with the correspondingly sloped guide surfaces (30, 32) of the control knob (14).
6. Cooking pot, as claimed in claim 5, wherein the operating sections (7) project into a slot (13) of the control knob (14).
7. Cooking pot, as claimed in any one of the claims 1 to 6, wherein the control knob (14) is braced at the lid (3) with at least one pressure spring (18) acting in the opening direction.
8. Cooking pot, as claimed in any one of the claims 1 to 7, wherein the control knob (14) can be conveyed from its opening position by axial pressure into a lockable and unlockable closing position on the lid (3).
9. Cooking pot, as claimed in claim a, wherein the control knob (14) can be released from the closing position by applying pressure again in the axial direction and then can be conveyed back again into its opening position.
10. Cooking pot, as claimed in any one of the claims 1 to 9, wherein the locking segments (5) are guided slidingly and/or rollingly at the lid (3).
11. Cooking pot, as claimed in any one of the claims 1 to 10, wherein the lid (3) exhibits guide grooves (8) for the locking segments (5).
12. Cooking pot, as claimed in any one of the claims 1 to 11, wherein the peripheral claws (6) of the locking segments (5) are designed as circular segments.
13. Cooking pot, as claimed in any one of the claims 1 to 12, wherein at least three or more locking segments (5) are distributed over the circumference of the lid (3).
14. Cooking pot, as claimed in any one of the claims 1 to 13, wherein the peripheral claws (6) complement one another essentially over the entire circumference of the lid (3).
15. Cooking pot, as claimed in any one of the claims 1 to 14, wherein the locking segments (5) consist of spring steel at least region-by-region.
16. Cooking pot, as claimed in any one of the claims 1 to 15, wherein the locking segments (5) consist of a bracket member (5 ) and the peripheral claw (6) that are separate parts connected together by means of a jointed flange or spot connection, where preferably the bracket member (5') consists of spring wire and the peripheral claw (6) of a U-shape.
17. Cooking pot, as claimed in any one of the claims 1 to 16, wherein an anti-bursting element (12) is arranged-between at least one of the looking segments (5) and the lid (3) and deforms, e. g., resiliently when the lid is stressed due to the excess internal pressure of the pot and allows a predetermined axial movement of the lid (3) with respect to the pot rim (2).
18. Cooking pot, as claimed in claim 17, wherein the anti-bursting element (12) is formed as a stamping (24) of a locking segment (5).
19. Cooking pot, as claimed in any one of the claims 1 to 18, wherein at least one locking segment (5) for forming an anti-bursting element is designed at least region-wise as a resilient element.
20. Cooking pot, as claimed in any one of the claims 1 to 19 wherein the lid (3) is braced at one or more of the locking segments (5) by means of at least one hollow body (5) that is, for example, roller-shaped or a resilient element (41).
21. Cooking pot, 85 claimed in any one of the claims 1 to 20, wherein an upper lid (3) juts over the lid (3) and the locking segments (5).
22. Cooking pot, as claimed in claim 21, wherein the upper lid (25) is connected to the control knob (14) and thus can move axially with respect to the lid (3).
23. Cooking pot, as claimed in any one of the claims 19 to 22, wherein the locking segment (5) exhibits a curved intermediate section (4) from which lateral extensions (47) project sloping in the direction of the plane of the lid.
24. Cooking pot, as claimed in any one of the claims 1 to 23, wherein the axial motion of the control knob (14) is converted into a rotary motion of a link disk (40), in order to accomplish the opening and closing movement of the locking segments (5).
25. Cooking pot, as claimed in any one of the claims 1 to 24, wherein the sealing ring (4) is held by toroidal and/or nub-shaped elements (51, 53; 55, 56) at the rim of the lid.
26. Cooking pot, as claimed in any one of the claims 1 to 25, wherein the sealing ring (4) is inserted with an arch (54) provided at a sealing lip (37) into a peripheral bead (33) of the pot rim (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4026166.2 | 1990-08-17 | ||
| DE4026166A DE4026166A1 (en) | 1990-08-17 | 1990-08-17 | COOKING TANK |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2067497A1 true CA2067497A1 (en) | 1992-02-18 |
Family
ID=6412471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002067497A Abandoned CA2067497A1 (en) | 1990-08-17 | 1991-08-08 | Cooking vessel |
Country Status (16)
| Country | Link |
|---|---|
| EP (1) | EP0496862A1 (en) |
| JP (1) | JPH05501672A (en) |
| KR (1) | KR920702207A (en) |
| CN (1) | CN1059091A (en) |
| AU (1) | AU8331391A (en) |
| BR (1) | BR9105873A (en) |
| CA (1) | CA2067497A1 (en) |
| DE (1) | DE4026166A1 (en) |
| FI (1) | FI921732A0 (en) |
| IE (1) | IE912926A1 (en) |
| IL (1) | IL99188A0 (en) |
| MX (1) | MX9100693A (en) |
| PT (1) | PT98698A (en) |
| WO (1) | WO1992003080A1 (en) |
| YU (1) | YU141591A (en) |
| ZA (1) | ZA916448B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103720386A (en) * | 2012-08-16 | 2014-04-16 | 德国福维克控股公司 | Electrically operated kitchen appliance |
| CN104274083A (en) * | 2011-05-11 | 2015-01-14 | 德国福维克控股公司 | Electrically operated kitchen appliance with a cooking container |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4239552C1 (en) * | 1992-11-25 | 1994-04-28 | Karl Niese | Pressure cooker |
| FR2701370B1 (en) * | 1993-02-15 | 1995-04-21 | Seb Sa | Locking-unlocking device with jaws of a cover on a tank. |
| FR2722077B1 (en) * | 1994-07-06 | 1996-08-23 | Seb Sa | JAW LOCKING / UNLOCKING DEVICE OF A LID ON A TANK |
| FR2722078B1 (en) * | 1994-07-06 | 1996-08-30 | Seb Sa | DEVICE FOR CONTROLLING THE OPENING AND CLOSING OF LOCKING JAWS FOR A PRESSURE CONTAINER |
| IT1275723B1 (en) * | 1995-04-06 | 1997-10-17 | Lagostina Spa | CONTROL DEVICE OF THE WORKING VALVE OF A PRESSURE COOKER |
| DE19529118A1 (en) * | 1995-08-08 | 1997-02-13 | Peter Fischer | Cooking pan with lid and seal in intermediate gap - has inward sloping top rim of pan, and inward sloping bottom outer rim of lid forming flat segment |
| PL339626A1 (en) | 1997-10-03 | 2001-01-02 | Seb Sa | Electric household appliance for preparation of cooking products for serving, cooking, baking etc., such as a multipurpose kitchen machine, incorporating a device for simply locking and unlocking a component thereof requiring to be temporarily locked in position |
| FR2769200B1 (en) * | 1997-10-03 | 1999-11-19 | Seb Sa | HOUSEHOLD HOUSEHOLD APPLIANCE FOR FOOD PREPARATION, COMPRISING A SIMPLIFIED LOCKING DEVICE |
| FR2786383B1 (en) * | 1998-11-26 | 2001-01-26 | Seb Sa | MECHANISM FOR FIXING A SOLIDARITY COVER OF THE MOTOR OF A HOUSEHOLD ROBOT ON A WORKING CONTAINER |
| EP1044642B1 (en) | 1999-04-15 | 2003-12-10 | Wmf Württembergische Metallwarenfabrik Ag | Cooking vessels |
| DE10014766C2 (en) | 2000-03-27 | 2002-02-21 | Ursula Niese | Steam pressure cooker |
| TW429766U (en) * | 2000-05-22 | 2001-04-11 | Chen Jin Tsai | Improved pressure pot |
| WO2004041037A1 (en) * | 2002-11-06 | 2004-05-21 | Lg Electronics Inc. | Oven locking apparatus for electric cooker |
| DE102004056463B3 (en) * | 2004-11-23 | 2006-03-16 | Gero Vertriebs Gmbh | cooking vessel |
| ES2332439B1 (en) * | 2007-05-22 | 2010-09-14 | Maria Eugenia Pallares Just | PRESSURE COVER PLUG. |
| FR2940389B1 (en) * | 2008-12-24 | 2015-05-22 | Seb Sa | SEAL FOR FOOD COOKING APPARATUS AND APPARATUS PROVIDED WITH SUCH A SEAL |
| FR2940388B1 (en) * | 2008-12-24 | 2011-01-21 | Seb Sa | JOINT FOR FOOD COOKING APPARATUS AND APPARATUS PROVIDED WITH SUCH A SEAL |
| DE102010014988B4 (en) * | 2010-04-14 | 2012-11-29 | Gero Vertriebs Gmbh | Pressure lid for a saucepan and saucepan provided therewith |
| CN102160741B (en) * | 2011-02-24 | 2013-03-06 | 乔林友 | Self-closing pressure pot |
| FR2994814B1 (en) * | 2012-09-03 | 2014-09-19 | Seb Sa | SIMPLIFIEDLY MANUFACTURED PRESSURE COOKER COVER AND PRESSURIZED COOKING APPARATUS EQUIPPED WITH SUCH COVER |
| CN107752777A (en) * | 2017-08-29 | 2018-03-06 | 浙江尚厨炊具有限公司 | Micropressure boiler and its pot cover plug-in connection |
| RU2689215C2 (en) * | 2017-10-10 | 2019-05-24 | Сергей Сергеевич Ершов | Device for fixation of lid on dishware |
| CN112006547B (en) * | 2019-05-31 | 2022-04-22 | 佛山市顺德区美的电热电器制造有限公司 | Upper cover assembly of cooking utensil and cooking utensil |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1439000A (en) * | 1921-08-03 | 1922-12-19 | Joseph H Jacobs | Pressure-cooker lock |
| DE587324C (en) * | 1931-09-11 | 1933-11-02 | Ernst Moser | Pressure cooker with a lid that can be placed on the outside |
| FR1151579A (en) * | 1956-05-14 | 1958-01-31 | Pressure cooker for cooking food | |
| US3237604A (en) * | 1963-02-06 | 1966-03-01 | Frank T Johmann | Writing instrument |
| DE2116140B2 (en) * | 1971-04-02 | 1973-07-12 | DAMPER FOR COOKING FOOD IN OVERPRESSURE OR VACUUM PRESSURE AREAS | |
| GB1437242A (en) * | 1972-11-06 | 1976-05-26 | Kanebo Ltd | Push button cap |
| ATE28121T1 (en) * | 1983-08-25 | 1987-07-15 | Amc Int Alfa Metalcraft Corp | PRESSURE COOKER. |
| DE3618269A1 (en) * | 1986-05-30 | 1987-12-03 | Boehm Hans Georg Dipl Phys Dr | STEAM PRESSURE COOKER WITH A SEAL SECURING THE POT INTERIOR AGAINST PRESSURE DROP |
-
1990
- 1990-08-17 DE DE4026166A patent/DE4026166A1/en not_active Withdrawn
-
1991
- 1991-08-08 CA CA002067497A patent/CA2067497A1/en not_active Abandoned
- 1991-08-08 EP EP91914599A patent/EP0496862A1/en not_active Withdrawn
- 1991-08-08 KR KR1019920700872A patent/KR920702207A/en not_active Application Discontinuation
- 1991-08-08 AU AU83313/91A patent/AU8331391A/en not_active Abandoned
- 1991-08-08 JP JP3513481A patent/JPH05501672A/en active Pending
- 1991-08-08 BR BR919105873A patent/BR9105873A/en not_active Application Discontinuation
- 1991-08-08 WO PCT/EP1991/001497 patent/WO1992003080A1/en not_active Application Discontinuation
- 1991-08-14 IL IL99188A patent/IL99188A0/en unknown
- 1991-08-15 YU YU141591A patent/YU141591A/en unknown
- 1991-08-15 ZA ZA916448A patent/ZA916448B/en unknown
- 1991-08-16 PT PT98698A patent/PT98698A/en not_active Application Discontinuation
- 1991-08-16 MX MX9100693A patent/MX9100693A/en unknown
- 1991-08-16 IE IE292691A patent/IE912926A1/en unknown
- 1991-08-17 CN CN91105711A patent/CN1059091A/en active Pending
-
1992
- 1992-04-16 FI FI921732A patent/FI921732A0/en not_active Application Discontinuation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104274083A (en) * | 2011-05-11 | 2015-01-14 | 德国福维克控股公司 | Electrically operated kitchen appliance with a cooking container |
| CN103720386A (en) * | 2012-08-16 | 2014-04-16 | 德国福维克控股公司 | Electrically operated kitchen appliance |
| CN103720386B (en) * | 2012-08-16 | 2017-07-14 | 德国福维克控股公司 | Motor-driven kitchen equipment |
| CN107260022A (en) * | 2012-08-16 | 2017-10-20 | 德国福维克控股公司 | Motor-driven kitchen equipment |
| CN107260022B (en) * | 2012-08-16 | 2019-10-01 | 德国福维克控股公司 | Motor-driven kitchen equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| MX9100693A (en) | 1992-04-01 |
| YU141591A (en) | 1994-06-10 |
| ZA916448B (en) | 1992-06-24 |
| WO1992003080A1 (en) | 1992-03-05 |
| EP0496862A1 (en) | 1992-08-05 |
| FI921732A (en) | 1992-04-16 |
| CN1059091A (en) | 1992-03-04 |
| IE912926A1 (en) | 1992-02-26 |
| AU8331391A (en) | 1992-03-17 |
| FI921732A0 (en) | 1992-04-16 |
| JPH05501672A (en) | 1993-04-02 |
| DE4026166A1 (en) | 1992-02-20 |
| KR920702207A (en) | 1992-09-03 |
| IL99188A0 (en) | 1992-07-15 |
| PT98698A (en) | 1994-01-31 |
| BR9105873A (en) | 1992-10-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |