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

Definitions

• the invention relates to a cooking vessel, in particular a pressure cooker, consisting essentially of a pot-shaped container and one for the, in particular pressure-tight.
• a cooking vessel in particular a pressure cooker, consisting essentially of a pot-shaped container and one for the, in particular pressure-tight.
• the container certain, for example having a sealing ring, the container having a circumferential, outwardly angled pot edge which, when an actuating button movably mounted on the lid is actuated in the closing direction, essentially parallel to the plane of the pot edge
• Circumferential claws which are slidably mounted on the cover and which are slidably mounted on the cover are gripped, while preferably an inner section of the closure segments is supported on an area of the cover and which is released again by the circumferential claws when the actuating button is moved in the opening direction.
• EP-A-0 139 772 discloses such a cooking vessel, which is designed as a pressure cooker and essentially consists of a lower pot and a lid unit closing the lower pot.
• the saucer has an all-round smooth pot rim.
• the cover unit consists of a lower cover and an upper cover. The latter is designed as a closing element which, in the closed position, can be flanged under the rim of the pot.
• the upper lid has two half-lids, each of the half-lids is rotatably received relative to the lower lid and the lower pot about an axis of rotation substantially parallel to the vertical geometric pot center axis, and the axes of rotation are eccentric to the pot center axis and are diametrically rotatable in a centered one on the lower lid Turned part opposite each other.
• a pressure cooker it is necessary to apply pressure to the lid unit by hand to open and close the lid and, at the same time, to set the actuating button in a rotary movement. This makes the operation relatively uncomfortable.
• Pressure cookers are generally equipped with so-called pressure relief valves, which open when a predetermined inner pressure in the pot is reached and thereby avoid the risk of the cooking vessel bursting or the lid unit bursting off the lower pot. However, it is desirable to provide even greater burst protection.
• a cooking vessel which eliminates the disadvantages of the prior art and in particular permits more convenient closing and opening. There should also be the possibility of a higher burst protection.
• the actuating button is mounted on the lid in an axially movable manner, that when the actuating button moves axially, for example, under pressure, the closure segments with the circumferential claws radially follow in the closing direction pulled inside in the locking position and that when the actuating button moves axially in the opening direction, the locking segments with the circumferential claws are pushed radially outward again into the unlocking position.
• a permanently reliable function of the locking mechanism can be achieved with a simple construction, for example, by the fact that the actuating button is displaceably mounted on a guide button which is fixed to the lid and is essentially coaxial with the central axis of the lid.
• the conversion of the axial movement of the actuating button into the desired radial movement of the closure segments, in particular when locking the lid of the cooking vessel, is achieved in a preferred embodiment of the invention in that the closure segments at their radially inner end each have an inclination radially towards the guide knob
• a smooth operation of the locking mechanism is particularly possible when the operating sections and the operating button face each other, e.g. interacting inclined guide surfaces.
• Said guide surfaces can be realized in a simple manner, in particular in that the actuating sections protrude into a slot in the actuating button.
• the actuating button is preferably supported on the cover by at least one compression spring acting in the opening direction from, so that the actuating button when it is released from its closed position is inevitably returned to its upper open position and thus also the closure segments are inevitably returned to their radially outer unlocking position.
• the actuating button can also preferably be transferred from its open position by axial pressure to a lockable and releasable closed position on the cover.
• Lifting the actuating button out of the locking position to open the cooking vessel is e.g. accessible by pressing the operating button again in the closed position, which is pushed slightly beyond its locking point in the direction of the cover.
• Such printing mechanisms are e.g. known per se in the field of ballpoint pens.
• the reliability of the function of the cooking vessel according to the invention can be improved with slight actuation in that the closure segments are guided on the lid in a sliding and / or rolling manner.
• the cover can have guide grooves for the closure segments, wherein the guide grooves a 'h can be designed in such a way that the closure segments are held radially displaceably on the cover, but cannot be completely detached therefrom.
• the cover and the closure segments thus form an easy-to-use structural unit.
• the peripheral claws of the closure segments are designed in the manner of circular segments and in this form, as far as possible, reach under the pot rim in the locking position. This means that a relatively large amount of deformation work has to be done before the closure segments can detach from the rim of the pot.
• a maximum of security can be achieved in that the circumferential claws complement one another essentially over the entire circumference of the cover.
• closure segments can, for example, consist at least in regions of spring steel.
• the closure segments consist of a bracket part and the peripheral claw, each of which are separate parts which are connected to one another by flanging or puncturing, the bracket part preferably made of spring wire and the peripheral claw made of one rigid U-profile exists.
• a burst protection element between at least one of the closure segments and the lid.
• Such an additional burst protection can, of course, also be provided for other types of cooking vessels, so that if the normally provided safety valve is blocked, the lid can be blocked between the rim of the pot and the lid, if the inside of the vessel is excessively closed, preferably over the entire circumference ⁇ catch, can leak slightly.
• the steam outlet for pressure relief can be delayed due to the dimensioning of the burst protection elements, so that there is no sudden pressure relief.
• the slight leak is achieved in that due to the design and mode of operation of the burst protection elements, the seal can stand out to a limited extent with its seal from the pot rim, but the closure segments with their circumferential claws remain functional.
• burst protection element is reversibly or irreversibly deformed when the cover is subjected to excessive pressure and allows a predetermined axial movement of the cover with its sealing ring relative to the rim of the pot.
• the burst protection element can preferably be formed by a closure segment itself which is at least partially formed as a spring-elastic element.
• the burst protection element is preferably designed as a deformable form of a closure segment which is supported on the cover.
• the cover can also be attached to one or more of the closure segments via at least one, e.g. roller-shaped hollow body or a resilient element, e.g. support a helical or leaf-shaped spring.
• the roll-shaped hollow bodies which are provided between the closure segments and the lid as burst protection elements and can be compressed under increased internal pressure of the container serve at the same time to reduce the frictional forces of the closure segments with respect to the lid when closing and when opening the closure mechanism.
• the lid and the closure segments can be cantilevered from an upper cover so that the locking mechanism, including the radially movable locking segments, is largely covered.
• the top cover is connected to the actuation button and is therefore axially movable relative to the cover together with the actuation button.
• the upper cover In the open position of the actuating button, the upper cover is therefore at a relatively large distance from the cover and the closure segments, so that the cover unit can be easily cleaned under flowing water.
• the cover when the cover is closed, the upper cover lowers over the segments and the cover, so that in addition to the shielding effect against the ingress of contaminants into the closure mechanism, the closed position of the cover is easily recognizable.
• the closure segment has an arcuate intermediate section, from which lateral extensions protrude obliquely to the cover plane, on which the respective peripheral claw is held.
• the arcuate intermediate section and the extensions can be bent like the actuating section from spring steel wire. In this way, the closure segment forms a burst protection element in a simple manner.
• the sealing ring In the context of the invention, it is also possible that instead of the interaction of guide surfaces of the actuating button and the closure segments, the axial movement of the actuating button is converted into a rotary movement of a link plate, from which the closure segments are set into opening and closing movements via connecting webs.
• the sealing ring it is particularly important that the sealing ring always has a reliable fit on the edge of the lid. This can be achieved in an advantageous manner within the scope of the invention in that the sealing ring is held on the edge of the cover by bead-shaped and / or knob-shaped elements.
• the sealing ring can be pressed into a circumferential groove of the cover by means of an annular bead, which is optionally provided with a clamping ring.
• the sealing ring can be fitted into the lid by means of knobs distributed over the circumference of the lid. The knobs lie outside a sealing lip with which the sealing ring lies against the inner surface of the cover.
• the sealing ring with a bulge provided on a sealing lip can also be inserted into a peripheral bead of the rim of the pot.
• FIG. 1 a cooking vessel according to the invention in the unlocked state schematically in a vertical section
• 2 shows a section of the cooking vessel corresponding to FIG. 1 in the locked state
• FIG. 3 shows a half top view according to A of FIG. 1 and a half top view according to B of FIG. 2,
• FIG. 9 shows a section corresponding to C-D of FIG. 8 in the region of the combination of actuation button and guide button serving as a handle
• FIG. 10 is a view Y of FIG. 10,
• FIG. 13 shows a top view of the cover of FIG. 12 with closure segments from the direction XIII
• FIG. 14a in the normal state
• FIG. 14b in the burst protection state
• Fig. 15a and 15b vertical sections of the cover of FIG. 1 4a and 14b along lines XVa - XVa and XVb - XVb
• FIGS. 12 to 15 are plan views of the locking element without a peripheral claw for the cover according to FIGS. 12 to 15,
• Fig. 19 shows schematically another actuation option for the peripheral claws
• 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 rim 2 is designed as a pouring rim with an inner circumferential bead 33, an essentially flat sealing surface 34 that adjoins the outside and is perpendicular to the central axis M, and an edge section 35 that adjoins the outside and is bent obliquely downwards, the latter centering of the cover 3, which has an edge flange 42 which is initially angled downwards and then outwards and has an oblique end face 36.
• the sealing ring 4 lies with a sealing lip 37 on the sealing surface 34 of the pot rim 2.
• closure segments 5 Overlying and guided on the cover 3 there are several, preferably four, closure segments 5 distributed uniformly over the circumference of the cover 5.
• the closure segments 5 have at their outer end an angled downward and inward circumferential claw 6 which is dimensioned such that in the locking position illustrated in FIG. 2, it engages under the lid edge 2 with the lid 3 clamped between the closure segments 5 and the lid edge 2 and thus secures the lid 3 by means of the sealing ring 4 in a pressure-tight manner on the container 1.
• the cover 3 is supported with an area 28 located near its edge on an outer portion 27 of the closure segments 5.
• a guide button 16 is attached, on which an operating button 14 is axially displaceably mounted.
• an operating button 14 is axially displaceably mounted.
• the actuating button 14 has reached its lower closed position relative to the fixed guide button 16 by pressing in the direction D from above on the actuating button 14, as is illustrated in FIG. 2.
• the locking segments 5 are pulled inwards into the locking position due to interacting oblique guide surfaces 29, 30, in which the inwardly angled sections of the locking claws 6 lock the pot edge 2 by pressing against it Sealing lip 37 of the lid 3 on the sealing surface 34.
• the upper end faces of the actuation button 14 and the guide button 16 are in alignment with one another for the visible indication of the closed position, and the actuation button 14 is locked relative to the guide button 16 by means of 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 in an insert 23 fixed to the actuating button 14, as a result of which the bolt 19 with the insert 23 and is therefore also movable with the operating button 14.
• the insert 23 is provided for easier assembly of the actuating button 14 and the guide button 16.
• a further bolt 21 protrudes radially inward into such a groove guide 22, which is known, for example, from ballpoint pens and which determines both the open position (FIG. 1) and the closed position (FIG. 2) of the actuating button 14 and sets these two end positions. If the locking mechanism is to be released, a renewed pressing in direction D on the actuating button 14 is sufficient and the bolt 21 unlocks from the groove guide 22, so that the actuating button 14 with its inner part 17 is pushed back in by a compression spring 18 supported on the cover 3 the opening position is pressed against the direction of the arrow D, as a result of which the closure segments 5 return to their radially outer opening position against the direction of movement B via the slot guide of the actuating sections 7.
• 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 appear in FIG. 3, the circumferential claws 6 practically take up the entire circumference of the cover 3 and thus of the pot rim 2, with only a few gaps.
• the cover 3 with the sealing ring 4 can lift up slightly from the flat sealing surface 34 relative to the sealing segments 5, thereby causing a deliberate pressure relief takes place and bursting of the cooking vessel is avoided.
• the burst protection elements 12 can also be embodied as features 24 of the closure segments 5, which in this case preferably consist of stainless steel sheet.
• the wall thickness of the closure segments 5 in the region of the features 24 and their length can in turn determine the pressure from which the lid 3 with the sealing ring 4 can move slightly axially relative to the closure segments 5, deforming the features 24, in order to relieve pressure can be reached by slight leakage at the entire rim of the pot 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.
• the guide button 16 is also preferably connected to the cover 3 in a heat-conducting manner via a guide and holding rod enclosed by a collar 38 of the cover 3.
• 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.
• the top cover 25 In the open position shown in FIG. 1, the top cover 25 is at a relatively large distance from the cover 3, so that the entire cover unit, including the movable parts, can be easily cleaned and dried.
• the top cover 25 lies over its entire outer circumference in the edge region of the closure segments 5, while an edge flange 41 which is angled downwards over the entire circumference surrounds the unit of cover 3 and closure segments 5 over part of their height .
• a conventional cooking valve (aroma valve) 10 and at least one conventional pressure relief valve 11 can be arranged in the cover 3.
• the cooking valve 10 can be actuated via a plunger 26 guided axially in the actuating button 14 for the desired pressure relief of the interior of the vessel.
• an annular shielding of the two valves 10, 11 is attached against contamination by cooking material.
• FIG. 8 differs from the one explained above essentially by a somewhat different design of the actuation button 14 in cooperation with the guide button 16 and the actuation sections 7 of the closure segments 5 and the support of the actuation segments 5 at their outer end via spring-elastic elements 41 designed as helical line springs, which take over the function of burst protection elements 12, which remain functional even after a maximum internal vessel pressure has been exceeded.
• the top cover 25 can be easily fitted and exchanged between two nuts 43 screwed onto the outer circumference of the actuating button 14.
• the sliding of the closure segments 5 on the cover 3 can be ensured by a high-temperature-resistant, disc-shaped element 44, as a result of which the frictional force acting between the closure segments 5 and the cover 3 is so low that it is reduced to the compression springs 18 acting as return springs can be easily overcome.
• FIG. 9 shows how the actuating button 14 can be supported on the cover 3 by means of a plurality of compression springs 18.
• the actuation button 14 is locked relative to the guide button 16 both in the upper open position (FIG. 10) and in the lower closed position (FIG. 9) in a manner similar to that in the first embodiment via a groove shown in FIG. 11 -Pin mechanism 22, 42, as is known per se from ballpoint pens.
• This locking limits the path of the actuating button 14 relative to the fixed guide button 16 upwards against the action of the compression springs 18 and holds the actuating button 14 securely in its lower closed position, as shown in FIG. 9, until the actuating button 14 is pressed again is pressed from above and the lock is released.
• the closure segments 5 consist of a bracket part 5 'with an actuating section 7 and the peripheral claw 6 as separate parts. These are via a flare connected to one another by means of a holding section 45, which is bent out of the outer wall of the circumferential 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 lie-shaped extensions 47 connect in the circumferential direction to the outside (FIG. 16).
• the extensions 47 are slightly curved out of the horizontal plane, so that the lid 3 with the sealing ring 4 can lift off from the rim 2 of the pot relative to the peripheral claws 6 when a predetermined overpressure in the interior of the vessel is exceeded and a circumferential gap is released for pressure relief.
• the bracket part 5 'thus acts as a burst protection element.
• the circumferential claw 6, on the other hand, consists of a rigid U-Prc 11, which normally ensures a pressure-tight locking of the di .cel 3 relative 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.
• 17a to 18 illustrate a bracket part 5 'according to another embodiment, which due to its shape is also designed as a spring-elastic burst protection element for the cover 3.
• the spring force perpendicular to the cover plane is provided by an arcuate intermediate section 48, to which the extensions 47 which run obliquely to the cover plane are connected, as can best be seen from FIG. 17b.
• FIGS. 20 to 22 illustrates an embodiment according to which the axial movement of the actuating button is converted into a rotary movement of a link plate 49 in order to bring about the displacement of the peripheral claws 6 from the open position into the locking position and vice versa via connecting webs 50.
• FIGS. 20 to 22 Different embodiments of the sealing ring 4 are illustrated in FIGS. 20 to 22.
• the sealing ring 4 has an annular bead 51 with a substantially circular-cylindrical outer circumferential surface, in order to be received by clamping in appropriately shaped, arcuately curved tabs 52 of the edge of the cover.
• Two sealing lips 37 protrude inward from the annular bead 51 in order to be supported on the one hand on the inner surface of the cover 3 and on the other hand on the sealing surface 34.
• the sealing ring 4 according to FIG. 21 can be buttoned into the lid edge by means of knobs 53 distributed over the circumference.
• the upper sealing lip 37 lies against the inner surface of the cover 3.
• the lower sealing lip 37 has a bulge 54 with which it is inserted into the bead 33 of the rim 2 of the pot.
• 22 has an upper annular bead 55, which is pressed into a circumferential groove 57 of the cover 3 by means of a clamping ring 56.
• this sealing ring 4 is configured similarly to that according to FIG. 21.

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• Engineering & Computer Science (AREA)
• Food Science & Technology (AREA)
• Cookers (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6412471

Family Applications (1)

Country Status (16)

Cited By (17)

Families Citing this family (8)

Citations (8)

• 1990
  • 1990-08-17 DE DE4026166A patent/DE4026166A1/de not_active Withdrawn
• 1991
  • 1991-08-08 BR BR919105873A patent/BR9105873A/pt not_active Application Discontinuation
  • 1991-08-08 WO PCT/EP1991/001497 patent/WO1992003080A1/de not_active Application Discontinuation
  • 1991-08-08 CA CA002067497A patent/CA2067497A1/en not_active Abandoned
  • 1991-08-08 AU AU83313/91A patent/AU8331391A/en not_active Abandoned
  • 1991-08-08 EP EP91914599A patent/EP0496862A1/de not_active Withdrawn
  • 1991-08-08 KR KR1019920700872A patent/KR920702207A/ko not_active Application Discontinuation
  • 1991-08-08 JP JP3513481A patent/JPH05501672A/ja active Pending
  • 1991-08-14 IL IL99188A patent/IL99188A0/xx unknown
  • 1991-08-15 ZA ZA916448A patent/ZA916448B/xx unknown
  • 1991-08-15 YU YU141591A patent/YU141591A/sh unknown
  • 1991-08-16 IE IE292691A patent/IE912926A1/en unknown
  • 1991-08-16 MX MX9100693A patent/MX9100693A/es unknown
  • 1991-08-16 PT PT98698A patent/PT98698A/pt not_active Application Discontinuation
  • 1991-08-17 CN CN91105711A patent/CN1059091A/zh active Pending
• 1992
  • 1992-04-16 FI FI921732A patent/FI921732A/fi not_active Application Discontinuation

Patent Citations (8)

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