DE4026166A1 - COOKING TANK - Google Patents

Abstract

A cooking vessel consists essentially of a pot-shaped container (1) and a lid (3) for closing the container (1). The container has a peripheral rim (2) which is turned outward. When an actuating knob (14) movably mounted on the lid (3) is moved in the direction of closing, said rim is gripped by peripheral lips (6) which are turned down and in and which have closure segments (5) mounted on the lid (3) so that they slide essentially parallel to the plane of the rim (2). When the actuating knob (14) moves in the direction of opening, said rim is released by the peripheral collars (6). To facilitate closing and opening of this cooking vessel, the invention proposes that the actuating knob be mounted axially mobile on the lid, that when the actuating knob (14) moves axially in the direction of closing the closure segments (5) with the peripheral lips (6) be pulled radially inward into the locked position and that when the actuating knob (14) moves axially in the direction of opening, the closure segments (5) with the peripheral lips (6) be pushed radially outward into the unlocked position.

Description

The invention relates to a cooking vessel, in particular a pressure cooker consisting essentially of a Pot-shaped container and one for that, especially pressure tight, closing the container certain lid, being the container has a circumferential angled outward Has pot rim, which when actuating one on the lid movably mounted operating button in the closing direction of at ver parallel to the plane of the pot edge slidably mounted closure segments provided, after under the angled circumferential claws below, while preferably an inner portion of the closure segments supported on one area, and which when moving of the operating button in the opening direction again from the Circumferential claws is released.  

From EP-A 01 39 772, one such as vapor pressure Cooking pot trained cooking vessel known, which in essence a saucer and a saucer closing lid unit there. The saucer has one all-round smooth pot rim. The lid unit consists of a lower cover and an upper cover. The latter is as Closing element formed in the closed position with order flanges can reach under the pot rim. For improvement of such a pressure cooker is proposed there that the top cover has two half covers that each of the half lid around a vertical geometric pot center axis in the substantially parallel axis of rotation relative to the lower cover and is rotatably received to the saucer and that the axes of rotation eccentric to the center axis of the pot and diametrically related to it in a rotating part that is rotatably mounted in the center of the lower cover face each other. With such a pressure cooker it is necessary to open and close the lid of Hand exert pressure on the lid unit and immediately to set the actuating button in a rotary movement at an early stage. This makes operation relatively uncomfortable.

Pressure cookers are usually with so-called over pressure valves equipped, which when reaching a pre Given the inner pressure of the pot and there is a risk of Burst the cooking vessel or snap off the lids avoid the saucer. However, it is desirable to ensure an even greater burst protection.  

Proceeding from this, it is an object of the present invention propose a cooking vessel, which the disadvantages of the stand the technology eliminated and in particular a more convenient Closing and opening allowed. Furthermore, the possibility for there is a higher burst protection.

According to the invention this object is achieved with one Cooking vessel of the type mentioned provided that the Actuation button is axially movably mounted on the cover, that with an axial movement of the operating button z. B., pressure, in the closing direction the closure segments radially pulled inwards in the locking position and that at one axial movement of the operating button in the opening direction the locking segments radially outward again in entriege position are pushed. This ensures that to close the cooking vessel only by hand the actuation button needs to be pressed. Which the resulting axial movement is according to the invention thank vice versa in a radial movement of the closure segments puts.

A permanently reliable function of the locking mechanism can with simple construction ver be real that the operating button on one in essence Lichen coaxial to the lid center axis Füh tion button of the lid is slidably mounted.

Implementation of the axial movement of the operating button in the Desired radial movement of the closure segments, in particular when closing the cooking vessel, one is preferred Embodiment of the invention achieved in that the Ver closing segments at their radially inner end one each Direction on the guide button obliquely inwards and radially  actuating section extending axially away from the cover have in the axial movement of the actuation button protrudes. When pressing the actuation button the lower edge then necessarily comes into engagement with the operating sections of the closure segments, whereupon the Closure segments due to the slope, which the actuation sections, are pulled inwards. At Movement of the operating button in the opposite direction, that is in the opening direction, the closure segments can then again move radially outwards and the cover, which in Closed position of the closure segments between the pot rim and Closure segments is clamped, release again.

A smooth operation of the locking mechanism is particularly possible if the operating sections and the control button facing each other, e.g. B. oblique Interact guide surfaces.

The locking segments are when the actuation moves button away from the lid, i.e. in the opening direction, through the Actuating button inevitably in its radially outer Release position transferred when the operating sections of the Closure segments on both sides with inclined guide surfaces sen, which with correspondingly inclined guide surfaces of the Interact with the control button.

The guide surfaces mentioned can be easily ins special be realized in that the actuation cuts into a slot in the operating button.

The actuation button is preferably based on at least a compression spring on the lid, so that it comes off when loosening its closed position inevitably returns to its upper position  Open position and thus the closure segments again inevitably transferred to their radially outer opening position will.

The actuation button is also preferably out of the opening position by axial pressure in a lockable and again releasable closed position on the lid can be transferred. A Lift the operating button out of the locked position for Opening the cooking vessel is e.g. B. by pressing again Actuator button in the locked position accessible, this slightly beyond its locking point in the direction Lid is pressed. Such printing mechanisms are e.g. B. on known in the field of ballpoint pens.

The reliability of the cooking vessel according to the invention can easy operation can be improved by the fact that Closure segments sliding and / or rolling on the lid are led.

The cover can have guide grooves for the closure segments have, the guide grooves also in the manner educated Det can be that the closure segments ver radially slidably held on the lid, but not by this are completely detachable. The lid and the locking segments form an easy-to-use structural unit.

A high level of safety of the cooking vessel is then guaranteed achieves if in further development of the inventive idea Circumferential claws of the closure segments like a ring segment are trained and practical in this form in the closed position under the top of the pot. This makes a relationship to perform moderately large deformation work before the Can detach closure segments from the rim of the pot.  

For the purpose of an even and secure fit of the lid it is particularly advantageous if at least three or more Closure segments distributed over the circumference of the lid arranges so that the lid is practically uniform its extent is held in the closed position on the rim of the pot.

The highest level of security can be achieved by that the circumferential claws essentially over the entire Complete the scope of the cover.

The closure segments can, for example, be at least richly consist of spring steel.

It is technically and functionally from before part if the closure segments from a bracket part and the There are circumferential claws, each separate, via supply are parts connected to each other, whereby preferably the bow part made of spring wire and the peripheral claw consists of a rigid U-profile.

To increase the bursting safety of the cooking vessel, inventions are made proposed according to the invention, between at least one of the ver closing segments and the cover to arrange a burst protection element nen. Such additional burst protection can self-ver should also be provided for other types of cooking vessels, if this would result in a possible blocking of security valve the lid in case of overpressure even in the closed state slightly on the edge of the pot, preferably on the entire edge of the pot can leak. The steam outlet for pressure relief can in doing so by dimensioning the burst protection elements be designed delayed, so that never a momentary pressure load takes place. The slight leak will  achieved in that the cover due to the Ausgestal to a limited extent with its Seal can lift off the pot edge, the closure segments with their circumferential claws, however, remain functional.

This can easily be done, for example, by that the burst protection element with excessive pressure bean stress on the lid is reversibly or irreversibly deformed and a predetermined axial movement of the lid with the Allow sealing ring opposite the pot rim.

The burst protection element can preferably be at least one partially formed as a resilient element Ver final segment itself.

The burst protection element is preferably a deformable one Formation of a closure segment itself formed.

The lid can be in another simple Ausge staltung of the invention on one or more of the closure segment elements via at least one preferably hollow roller or one resilient element, e.g. B. a helical or Support leaf-shaped spring. The between closure segments and cover provided as burst protection elements, under increased Compressible rollers also serve one Reduction of the frictional forces compared to the closure segments the lid when closing and when opening the closure mechanism.

An appealing exterior to the cooking vessel according to the invention The lid and the closure segments can give the appearance be overhanged by an upper cover, so that the closure mechanism including the radially movable shutter  segments is largely covered.

It is particularly useful if the top cover with the Actuating button movably connected axially with respect to the cover that is. Has in the open position of the operating button through the top cover a relatively large distance of the lid and the closure segments, so that under flowing Water an even easier cleaning of the lid unit possible is. On the other hand, when closing, the top cover lowers the segments and the cover, so that in addition to the shielding Effect against the ingress of impurities in the ver the closing mechanism of the lid simply is recognizable.

Further goals, features, advantages and possible applications of the present invention result from the following Description of exemplary embodiments with reference to the drawing. All described and / or illustrated characteristics for themselves or in any meaningful combination tion the subject of the present invention also independently from their summary in the claims or their return drawing.

Show it:

Fig. 1 a, the invention exhibiting ent cooking vessel in the locked state, schematically, in vertical section

Fig. 2 shows a section of the cooking vessel shown in FIG. 1 in the locked state,

Fig. 3 is a half plan view of A of FIG. 1 and a half plan view according to B of Fig. 2,

Fig. 4 is a section corresponding to C of Fig. 2,

Fig. 5 is a section corresponding DD of Fig. 3,

Fig. 6 shows a section according to EE of Fig. 3,

Fig. 7 is a section corresponding FF of Fig. 3,

Fig. 8 in vertical section in the region of the lid another embodiment of the invention in the locked state,

Figure 9 supply button. A section corresponding CD of Fig. 8 in the area of serving as a handle and guide combination of Actuate the button,

Fig. 10 is a section corresponding EF of Fig. 9,

Fig. 11 is a view Y of Fig. 10,

Fig broken away. 12 in vertical section in the region of the lid, partly, still another embodiment of the invention in the unlocked state,

Fig. 13 is a plan view of the lid of Fig. 12 with Ver circuit segments from direction XIII seen

Fig. 14a and 14b, partly broken away views of the lid of Fig. 13 viewed from the direction of XIV, and that in the normal state (Fig. 14a) and in Berstschutzzustand (Fig. 14b)

Fig. 15a and 15b show vertical sections of the lid of Fig. 14a and 14b along the lines XVa-XVa or XVb-XVb, and

Fig. 16 is a plan view of the locking element without circumferential claw for the lid of Fig. 12 to 15.

According to FIG. 1, a cover 3 provided with a sealing ring 4 is placed on a container 1 designed as a pot with a pot rim 2 . The pot edge 2 is formed as a pouring rim with an inner circumferential bead 33 , an outwardly adjoining substantially flat, perpendicular to the central axis M sealing surface 34 and an adjoining, externally adjoining obliquely downwardly bent edge section 35 , the latter centering the Lid 3 facilitates, which has an edge flange 42 which is initially angled downwards and then outwards and has an oblique end face 36 . The seal 4 lies with a sealing lip 37 on the sealing surface 34 of the pot rim 2 .

On top of the cover 3 there are several, preferably four, evenly distributed over the cover circumference Ver closing segments 5 . The closure segments 5 have at their outer end a downwardly and inwardly angled circumferential claw 6 , which is dimensioned such that it can reach under the pot rim 2 in the closed position illustrated in FIG. 2 with the lid 3 clamped between the closure segments 5 and the pot rim 2 and thus secures the cover 3 to the container 1 in a pressure-tight manner by means of the sealing ring 4 . The lid 3 is supported in an area 28 on the edge on an outer portion 27 of the closure segments 5 .

As soon as the actuating button 14 has reached its closed position with respect to the fixed guide button 16 , as illustrated in FIG. 2, in which the upper end faces of the actuating button 14 and the guide button 16 are flush with one another for the visible indication of the closed position, the actuating button 14 becomes opposite to the Guide button 16 locked by a bolt 19 . The bolt 19 , which is elongated in the axial direction, has at its upper end a radially outward-pointing bolt 20 which projects into a recess of an insert 23 fixed to the actuating button 14 , as a result of which the bolt 19 with the insert 23 and thus also with the actuating button 14 is movable. The insert 23 is provided for easier assembly of the actuation button 14 and the guide button 16 . At the lower end of the bolt 19 protrudes radially inward a wide rer bolt 21 in such a z. B. from ballpoint pen known groove guide 22 that it determines both the open position ( Fig. 1) and the closed position ( Fig. 2) and sets these two end positions. If the locking mechanism is to be released, a renewed pressure in direction D on the actuating button 14 and the bolt 21 unlocks from the groove guide 22 , so that the actuating button 14 with its inner part 17 by the compression spring 18 again in the open position the direction of the arrow D is pressed, whereby via the slot guide of the actuation sections 7, the closure segments 5 move against the direction of movement B again in their radially outer open position.

From Fig. 3 it can be seen that the closure segments 5 have radial webs in plan view, at the radially outer ends of the circumferential claws 6 are formed like a ring segment. If, for example, four such closure segments 5 are provided at an angular distance of 90 °, of which only two are shown in FIG. 3, the circumferential claws 6 practically take up the entire circumference of the cover 3 except for small gaps.

As can be seen in particular from FIGS. 1 and 2 and the sectional view of FIG. 6, in the vicinity of the pot rim 2 between the sections 27 of the closure segments 5 and the regions 28 of the cover 3 , burst protection elements 12 formed as hollow rollers 15 are located . The burst protection elements 12 are captured between a somewhat raised edge of the cover 3 and a recess of the underside of the closure segment 5 . As a result, the radial movement of the closure segments 5 relative to the cover 3 takes place partly sliding and partly rolling, which facilitates the actuation. The wall thickness and length of the rollers 15 make it easy to determine the pressure under which the rollers 15 buckle. If an overpressure occurs in the cooking vessel, which is capable of deforming or buckling the rollers 15 , the lid 3 can slightly lift up relative to the closure segments 5 upwards from the flat sealing surface 34 , as a result of which a desired pressure relief takes place and the valve bursts Cooking vessel is avoided.

As illustrated in Fig. 7, the burst protection elements 12 can also be ausgebil det as features 24 of the closure segments 5 , which in this case are preferably made of stainless steel sheet. Due to the wall thickness of the closure segments 5 in the region of the protrusions 24 and their length, the pressure can in turn be determined, from which on the cover 3 with deformation of the protrusions 24 can move slightly axially relative to the closure segments 5 in order to relieve pressure due to slight leakage to reach the total pot rim. 2

As can be seen from FIGS. 1 and 2, the guide button 16 has in its upper, wider head region a depression 40 in which a pressure and / or temperature display can be provided. For this reason, the guide button 16 is also preferably connected to the cover 3 in a heat-conducting manner.

As can also be seen best from FIGS. 1 and 2, the cover 3 with the closure segments 5 is overhanged by an upper cover 25 . The upper cover 25 is connected to the actuating button 14 and therefore carries out its axial movement. In the open position shown in Fig. 1, the upper cover 25 has a relatively large distance from the cover 3 , so that there is an easy cleaning and drying possibility for the entire cover unit GE. In the closed position according to FIG. 2, the top cover 25 lies over its entire outer circumference in the edge region of the closure segments 5 , while a downwardly angled circumferential flange 41 surrounds the unit of cover 3 and closure segments 5 over part of their height.

As can be seen from the sectional view of FIG. 5, a conventional cooking valve (aroma valve) 10 and at least one conventional pressure relief valve 11 are arranged in the cover 3 . The cooking valve 10 can be actuated via a plunger 26 axially guided in the actuating button 14 for relieving the pressure in the pot.

The embodiment shown in Fig. 8 differs from the previously explained essentially by a slightly different design of the actuating button 14 in cooperation with the guide button 16 and the actuating sections 7 of the closure segments 5 and the support of the actuation segments 5 at its outer end as Screws line spring designed spring-elastic elements 41 , which take over the function of burst protection elements 12 , which remain functional even when a maximum internal vessel pressure is exceeded. The top cover 25 is in this exemplary embodiment between two screwed on the outer circumference of the actuating button 14 nuts 43 easily assembled and held interchangeably.

From Fig. 9 it is evident how the operation knob 14 can be supported on a plurality of pressure springs 18 on the lid 3. The locking of the operating button 14 relative to the Füh approximately 16 both in the upper open position ( Fig. 10) and in the lower closed position ( Fig. 9) is similar Lich as in the first embodiment via a tongue and groove mechanism 23 , 42nd , as it is known from pens. This lock limits the path of the operating button 14 relative to the fixed guide button 16 upwards against the action of the compression springs 18 and holds the operating button 14 in its lower closed position, as shown in Fig. 9, securely until again on the Actuation button 14 is pressed from above and the lock releases.

As seen from Fig. 8, the sliding of the closure can be ensured 5 to the lid 3 by a hochtemperaturbeständi ges, disc-shaped element 44 segments, whereby and the cover 3 becomes effective frictional force is as low between the closure segments 5, that it from the acting as return springs compression springs 18 can be easily overcome.

In the example illustrated in FIGS. 12 to 16 of execution of the lid consist form the closure segments 5 of a bracket part 5 'and the circumference claw 6 as separate parts. These are connected to each other via a flange by means of a holding section 45 which is bent out of the outer wall of the peripheral claw 6 . The bracket part 5 'consists of a spring wire which is bent into a central U-shaped section, on the two legs of which wing-shaped extensions 47 connect in the circumferential direction to the outside ( Fig. 16). As can be seen in particular from Fig. 14a, the extensions 47 are slightly curved out of the horizontal plane, so that the lid 3 with the sealing ring 4 can rise above a predetermined overpressure in the pot interior relative to the peripheral claws 6 from the pot edge 2 and a peripheral gap Pressure relief becomes free. The bracket part 5 'thus acts as a burst protection element. The circumferential claw 6 , on the other hand, consists of a rigid U-profile, which normally ensures a pressure-tight locking of the cover 3 with respect to the pot rim 2 and holds the lid 3 securely on the pot rim 2 even in the event of burst protection, although pressure relief occurs.

Reference symbol list:

1 container
2 pot rim
3 lids
4 sealing ring
5 locking segments
5 ′ bracket part
6 circumferential claws
7 operating sections
8 guide grooves
9 ring
10 aroma valve
11 pressure relief valve
12 burst protection element
13 slot
14 operating button
15 rolls
16 guide button
17 inner part
18 compression springs
19 bars
20 bolts
21 bolts
22 Groove guide
23 use
24 expression
25 top cover
26 plungers
Section 27
28 area
29 guide surface
30 guide surface
31 guide surface
32 guide surface
33 surround
34 sealing surface
35 edge section
36 end face
37 sealing lip
38 fret
39 ring groove
40 deepening
41 spring-elastic element
42 pin
43 nuts
44 element
45 holding section
46 section
47 extensions
M central axis

Claims (23)

1. Cooking vessel, in particular pressure cooker consisting essentially of a pot-shaped container ( 1 ) and a cover ( 3 ) intended for the, in particular pressure-tight, sealing of the container ( 1 ), the container ( 1 ) having a pot rim that runs around and is angled outwards ( 2 ), which upon actuation of a cover ( 3 ) movably mounted actuating button ( 14 ) in the closing direction from essentially parallel to the plane of the pot edge ( 2 ) displaceably mounted closure segments ( 5 ) provided, downwardly angled circumferential claws ( 6 ) is grasped, while preferably an inner section ( 27 ) of the locking segments ( 5 ) is supported on an area ( 28 ) of the cover ( 1 ), and which, when the actuating button ( 14 ) moves in the opening direction, is removed from the peripheral claws ( 6 ) will give free, characterized in that the actuating button ( 14 ) axially movable on the lid Is stored (3) that upon axial movement of the actuating knob (14) in closing the closure segments (5) direction radially drawn inward into Ver lock-out position and that upon axial movement of the actuating knob (14) in the opening direction the closure segments (5) be pushed radially outwards again into the unlocking position. 2. Cooking vessel according to claim 1, characterized in that the actuating button ( 14 ) on a substantially coaxial to the central lid axis (M) fixedly arranged guide button ( 16 ) of the lid ( 3 ) is slidably mounted. 3. Cooking vessel according to claim 2, characterized in that the closure segments ( 5 ) at their radially inner end each have an actuating section ( 7 ) extending obliquely radially inward and axially away from the lid ( 1 ) in the direction of the guide button ( 16 ) that protrudes into the axial movement path of the actuating button ( 14 ). 4. Cooking vessel according to claim 3, characterized in that the actuating sections ( 7 ) and the actuating button ( 14 ) cooperate with mutually facing guide surfaces ( 29 to 32 ). 5. Cooking vessel according to claim 3 or 4, characterized in that the actuating sections ( 7 ) have inclined guide surfaces on both sides ( 29 , 31 ) which cooperate with correspondingly inclined guide surfaces ( 30 , 32 ) of the actuating button ( 14 ). 6. Cooking vessel according to claim 5, characterized in that the actuating sections ( 7 ) protrude into a slot ( 13 ) of the actuation button ( 14 ). 7. Cooking vessel according to one of claims 1 to 6, characterized in that the actuating button ( 14 ) on little least a compression spring ( 18 ) is supported on the lid ( 3 ). 8. Cooking vessel according to one of claims 1 to 7, characterized in that the actuating button ( 14 ) from the opening position by axial pressure in a lockable and releasable closed position on the lid ( 3 ) can be transferred. 9. Cooking vessel according to claim 8, characterized in that the actuating button ( 14 ) from the closed position by axial pressure can be transferred back to its open position. 10. Cooking vessel according to one of claims 1 to 9, characterized in that the closure segments ( 5 ) on the lid ( 3 ) are guided in a sliding and / or rolling manner. 11. Cooking vessel according to one of claims 1 to 10, characterized in that the lid ( 3 ) has guide grooves ( 8 ) for the closure segments ( 5 ). 12. Cooking vessel according to one of claims 1 to 11, characterized in that the circumferential claws ( 6 ) of the closure segments ( 5 ) are designed in the manner of annular segments. 13. Cooking vessel according to one of claims 1 to 12, characterized in that at least three or more closure segments ( 5 ) are arranged distributed over the circumference of the lid ( 3 ). 14. Cooking vessel according to one of claims 1 or 13, characterized in that the peripheral claws ( 6 ) complement each other substantially over the entire circumference of the lid ( 3 ). 15. Cooking vessel according to one of claims 1 to 14, characterized in that the closure segments ( 5 ) at least be made partially of spring steel. 16. Cooking vessel according to one of claims 1 to 15, characterized in that the closure segments ( 5 ) consist of a bracket part ( 5 ') and the circumferential claw ( 6 ), each of which are separate parts connected by crimping or puncturing, preferably the bracket part ( 5 ') made of spring wire and the peripheral claw ( 6 ) be made of a U-profile. 17. Cooking vessel according to one of claims 1 to 16, characterized in that a burst protection element ( 12 ) is arranged between at least one of the closure segments ( 5 ) and the lid ( 3 ). 18. Cooking vessel according to claim 17, characterized in that the burst protection element ( 12 ) deforms with excessive pressure stress of the lid ( 3 ) and a predetermined axial movement of the lid ( 3 ) with the sealing ring ( 4 ) relative to the pot rim ( 2 ) . 19. Cooking vessel according to claim 17 or 18, characterized in that the burst protection element ( 12 ) from an at least partially formed as a resilient element Ver closure segment ( 5 ) is formed. 20. Cooking vessel according to claim 17 to 19, characterized in that the burst protection element ( 12 ) is designed as an expression ( 24 ) of a closure segment ( 5 ). 21. Cooking vessel according to one of claims 1 to 20, characterized in that the lid ( 3 ) is supported on at least one preferably hollow roller ( 15 ) or a spring-elastic element ( 41 ) on one or more of the closure segments ( 5 ). 22. Cooking vessel according to one of claims 1 to 20, characterized in that the lid ( 3 ) and the closure segments ( 5 ) are overhanged by an upper lid ( 25 ). 23. Cooking vessel according to claim 22, characterized in that the upper lid ( 25 ) with the actuating button ( 14 ) is movably connected axially against the lid ( 3 ).