法国专利FR3059534A1 BAIONNETTE COOKER AND MOBILE LOCK

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专利摘要:
The invention relates to a pressure cooking apparatus comprising a tank (2), a lid (5) and a bayonet locking system, said apparatus (1) also comprising a security element. (12) fixed to the cover for movement with the latter pivotally relative to the tank (2), said apparatus (1) being characterized in that said security element (12) comprises a latch (16) mounted radially movable relative to said cover (5) between on the one hand an extended position in which said latch (16) protrudes radially from said cover (5) and on the other hand a retracted position in which said latch (16) is retracted towards the inside of the cover ( 5). - Pressure cookers.
公开号:FR3059534A1
申请号:FR1661864
申请日:2016-12-02
公开日:2018-06-08
发明作者:Eric Chameroy；Philippe Roussard；Eric Rhetat；Guillaume Julien
申请人:SEB SA；
IPC主号:

专利说明:

059 534
61864 ® FRENCH REPUBLIC
NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY © Publication number:
(to be used only for reproduction orders)
©) National registration number
COURBEVOIE © Int Cl ⁸ : A 47 J 27/08 (2017.01)
PATENT INVENTION APPLICATION
A1
©) Date of filing: 02.12.16. ©) Applicant (s): SEB S.A. Société anonyme - FR. ©) Priority: @ Inventor (s): CHAMEROY ERIC, ROUSSARD PHILIPPE, RHETAT ERIC and JULIEN GUILLAUME. (43) Date of public availability of the request: 08.06.18 Bulletin 18/23. ©) List of documents cited in the report preliminary research: Refer to end of present booklet (© References to other national documents ©) Holder (s): SEB S.A. Société anonyme. related: ©) Extension request (s): ® Agent (s): CABINET DIDIER MARTIN.
(64) pressure cooker with bayonet and mobile lock.
FR 3 059 534 - A1 (6 /) - Bayonet pressure cooker with movable lock
- The invention relates to a pressure cooking appliance comprising a tank (2), a cover (5) and a bayonet locking system, said appliance (1) also comprising a safety element (12) fixed to the cover for move with the latter pivotally relative to the tank (2), said apparatus (1) being characterized in that said security element (12) comprises a latch (16) mounted movable radially relative to said cover (5) between on the one hand a deployed position in which said latch (16) projects radially from said cover (5) and on the other hand a retracted position in which said latch (16) is retracted towards the inside of the cover (5).
- Pressure cooking appliances.
PRESSURE COOKER WITH BAYONET AND MOBILE LOCK
The present invention relates to the general technical field of appliances for cooking food under pressure, and in particular to domestic appliances of the pressure cooker type intended to form a cooking enclosure capable of increasing in pressure in order to ensure cooking under vapor pressure. food contained within it.
The present invention relates more particularly to a pressurized food cooking appliance comprising a tank, a cover independent of the tank, as well as a bayonet locking system designed to pass from an unlocking configuration to a locking configuration by pivoting of the cover relative to the tank, said apparatus also comprising a safety element fixed to the cover to move with the latter pivotally relative to the tank.
Pressure cooking appliances, in particular for domestic use, are well known. They generally comprise a metal tank on which is intended to be attached in a leaktight manner, by means of a flexible annular sealing gasket, a cover which is also metallic, so as to constitute a cooking enclosure capable of increasing in pressure. . The cover is intended to be linked to the vessel by means of locking means allowing the pressure cooker to move between a configuration for locking the lid relative to the vessel, in which the cooking enclosure is capable of being mounted in pressure, and an unlocking configuration in which the cover can be freely separated from the tank. There are different types of locking means well known in the prior art. One of the most widespread systems is the bayonet locking system, which is based on the implementation of tank and cover ramps intended to come into mutual support after rotation of the cover to thus ensure a mechanical retaining connection preventing the separation of the tank and the cover under the effect of the pressure build-up. The cover ramps are conventionally produced by folding inwardly located towards the inside of the annular falling edge of the cover, while the tank ramps are conventionally obtained by folding and cutting the free upper edge of the tank.
Known bayonet pressure cookers are usually equipped with a bowl handle and a cover which are angularly offset when the cover is attached to the tank for locking purposes, then travel through a predetermined relative angular stroke until they come into vertical mutual alignment once the locking position reached. In order to secure the use of the device, it is known to provide the tank and lid handles with complementary locking elements intended to cooperate mechanically when the handles are aligned to ensure interlocking of said handles with each other, in order to '' prevent any untimely opening of the device when it is under pressure.
These known devices are generally satisfactory, but nevertheless have various drawbacks, particularly in terms of practicality, ergonomics and safety in use.
In particular, the design of known pressure cookers makes it difficult, if not impossible, for the user to easily identify the interlocking means carried by the bowl and lid handles and to discern their mode of mechanical cooperation. These known devices are therefore not very intuitive to use. Known pressure cookers in particular do not allow the user to immediately determine, at a glance, whether the cover is in the pre-locked or locked position, and whether the handles are interlocked or not.
The invention therefore proposes to remedy the various drawbacks described above and to propose a new appliance for cooking food under pressure which, while being light, simple and inexpensive to manufacture, is particularly easy and intuitive to use, while presenting an improved level of security.
Another object of the invention is to propose a new appliance for cooking food under pressure of particularly simple and reliable construction.
Another object of the invention is to propose a new appliance for cooking food under pressure that is particularly safe.
Another object of the invention is to propose a new appliance for cooking food under very ergonomic pressure.
Another object of the invention is to propose a new appliance for cooking food under pressure which can be controlled manually in a particularly simple and reliable manner.
Another object of the invention is to propose a new appliance for cooking food under pressure which facilitates the correct positioning of the cover on the tank during docking of the cover on the tank for locking purposes.
Another object of the invention is to propose a new appliance for cooking food under pressure which allows the user to identify at a glance whether the appliance is locked or not.
Another object of the invention is to propose a new appliance for cooking food under pressure that is particularly compact and robust.
Another object of the invention is to propose a new appliance for cooking food under pressure, the design of which limits the risk of the cover escaping from the grip of the user.
The objects assigned to the invention are achieved using a pressurized food cooking appliance comprising a tank, a cover independent of the tank, as well as a bayonet locking system designed to pass from a unlocking configuration to a locking configuration by pivoting of the cover relative to the tank, said apparatus also comprising a safety element fixed to the cover to move with the latter pivotally relative to the tank, said device being characterized in that said element security comprises a latch mounted radially movable relative to said cover between on the one hand a deployed position in which said latch protrudes radially from said cover and on the other hand a retracted position in which said latch is retracted towards the inside of the cover, that in one of said deployed and retracted positions, said lock engages, when said locking system is in configuration tion of locking, a complementary locking conformation carried by the tank, while in the other of said deployed and retracted positions, said bolt emerges from said complementary locking conformation.
Other features and advantages of the invention will become apparent and will emerge in more detail on reading the description given below, with reference to the appended drawings, given by way of purely illustrative and nonlimiting examples, in which:
- Figure 1 illustrates, in a schematic perspective view, a pressurized food cooking appliance with bayonet lock according to a first embodiment of the invention, and the cover of which is in a predetermined position of pre -locking.
- Figure 2 is a schematic perspective view from below of the cover of the apparatus of Figure 1.
FIG. 3 is a schematic perspective view from above of the tank of the apparatus 15 of FIGS. 1 and 2.
- Figure 4 is a top view of the cover of Figure 2.
- Figure 5 is a side view of the cover of Figures 2 and 4.
- Figures 6 is a view identical to that of Figure 5 with the difference that the plastic cross member fitted to the cover is shown transparent to allow visual access to the control mechanism of the latch mounted in the cross member.
- Figure 7 is identical to Figure 6 with the difference that the lock is in its retracted position.
- Figure 8 is a top view of the device! of Figure 1 in its pre-locking configuration.
FIG. 9 illustrates, in a sectional view, a detail of the cooking appliance in its pre-locking configuration illustrated in FIGS. 1 and 8.
- Figure 10 illustrates, in a schematic perspective view, the cooking appliance of Figure 1, the cover is this time in a predetermined locking position relative to the tank.
- Figure 11 illustrates, in a top view, the device of Figure 10 in the locking configuration.
- Figure 12 illustrates, in a schematic perspective view, an enlarged detail of the apparatus of Figures 10 and 11 in the locking configuration.
- Figure 13 illustrates, in a schematic perspective view, the apparatus of Figures 10 to 12 in the locking configuration, the cover is shown in partial transparency in order to view the locking cooperation of the tank and cover ramps.
- Figure 14 is a schematic sectional view of an embodiment detail of the pressure cooker of Figures 10 to 13 in the locking configuration.
FIG. 15 is a schematic sectional view of another embodiment detail of the pressure cooker of FIGS. 10 to 14.
- Figure 16 illustrates, in a schematic perspective view, a pressure cooking appliance according to a second embodiment of the invention, and the cover of which is in a predetermined pre-locking position relative to the tank.
- Figure 17 illustrates, in a top view, the pressure cooking appliance of Figure 16.
- Figure 18 illustrates, in a schematic perspective view from below, the cover of the apparatus of Figures 16 and 17, with the latch in the deployed position.
- Figure 19 illustrates, in a schematic perspective view from below, the cover of Figure 18, with the latch in the retracted position.
- Figure 20 illustrates, in a schematic perspective view from above, the apparatus of Figures 16 to 19 with its cover in a predetermined locking position relative to the tank.
- Figure 21 illustrates, in a top view, the device of Figure 20 in the locking configuration.
As illustrated in the figures, the invention relates to an appliance 1 for cooking food under pressure, intended for cooking different foods at a pressure level higher than atmospheric pressure, in the presence of steam, and for example steam d 'water. Said steam is generated by heating, within the device 1 and in the presence of food, a cooking liquid, for example an aqueous liquid. The device 1 according to the invention is preferably intended for household use, it being understood however that the invention may also relate to professional or semiprofessional devices. The device 1 is preferably designed to build up pressure exclusively under the effect of a heating source (on-board or external), without external pressure. The device 1 according to the invention is advantageously designed to be subjected to an external heating source, such as for example a hob. The apparatus 1 for cooking food under pressure therefore constitutes a pressure cooker, preferably intended to be placed on an independent heating source (for example a hob) for heating the content. The cooking appliance 1 according to the invention comprises at least one tank 2 forming a cooking container, intended to accommodate the food to be cooked and in this case having substantially a symmetry of revolution along a central vertical axis XX ′, which extends in a direction which is similar to the vertical direction when the device 1 is in normal operation, that is to say rests on a horizontal plane. The tank 2 is conventionally made from a metallic material such as stainless steel or aluminum. The tank 2 comprises a bottom 2A, which is for example a multilayer thermally conductive bottom. The tank 2 also comprises an annular side wall 2B which rises between said bottom 2A and a free upper edge 2C, which in this case is circular in shape, and which delimits an access opening inside the tank 2. The conformation of this free upper edge 2C will be described in more detail in the following, in relation to the locking means of the device 1, As illustrated in the figures, the tank 2 is provided with at least one handle. tank 3 which forms a local protrusion extending radially (in this case relative to the central axis X-X ') from tank 2, and more precisely from the external face of the annular side wall 2B, towards the outside of the tank 2, and preferably in the vicinity of the free upper edge 2C. Thus, as illustrated in the figures, the tank handle 3 is fixed to said tank 2 so as to project externally from the latter and thus form a grip intended to be caught manually by the user to handle the tank 2 (for example for lift and move it). In the preferred embodiments illustrated in the figures, the cooking appliance 1 comprises two identical handles 3, 4 attached to the side wall 2B of the tank 2 in a diametrically opposite manner relative to the central axis XX ', said handles 3, 4 being in this case arranged near the free upper edge 2C of the tank 2. It is however perfectly conceivable that the tank 2 is provided with only one tank handle 3, or more than two handles tank (for example three or four), without departing from the scope of the invention.
The appliance 1 according to the invention also comprises a cover 5 intended to be associated with the tank 2 and locked relative to the latter to form a cooking enclosure capable of increasing in pressure, that is to say an enclosure of sufficiently airtight cooking to allow the pressure build-up of the device 1. In order to obtain this hermetic, waterproof character, the device 1 advantageously includes a seal 6, preferably formed by a flexible annular seal, made of elastomer by example, intended to be interposed between the cover 5 and the tank 2, to thereby prevent any uncontrolled leakage of steam and / or air between the interior of the enclosure and the exterior. The cover 5 is conventionally made from a metallic material such as stainless steel or aluminum. It advantageously has a shape combined with that of the tank 2, for example a generally discoid shape, which advantageously extends in a mean plane substantially parallel to the mean plane of extension of the bottom 2A of the tank 2 (that is to say - say a substantially horizontal plane in this case) when it is attached and locked on the latter. As illustrated in the figures, the cover 5 is independent of the tank 2, that is to say that it is not permanently attached to said tank 2 from which it is completely separate, and that it can thus be freely associated or separated from the tank 2 by the user (in the absence of locking of course).
In the embodiments illustrated in the figures, the cover 5 includes a discoid cover element 5A of shape and dimensions combined with those of the access opening delimited by the free upper edge 2C of the annular side wall 2B of the tank 2 In these embodiments, the cover 5 also advantageously includes an annular belt 5B, for example of substantially cylindrical or frustoconical shape, which rises between a circular upper edge secured to the discoid cover element 5A (in this case at the periphery of the latter) and a free circular lower edge, which is for example itself extended by a terminal flange. As illustrated in the figures, the discoid cover element 5A extends generally along a horizontal mean plane, that is to say in this case parallel to the mean plane of extension of the bottom 2A of the tank 2 when the cover 5 is associated with the tank 2 to form the cooking enclosure, while the annular belt 5B extends substantially vertically, that is to say parallel to the central axis X-X ', the end flange s' extending meanwhile substantially horizontally. This of course does not in any way exclude that the discoid cover element 5A can be, as illustrated in the figures, slightly curved or locally curved, in order for example to accommodate a control mechanism or for reasons of mechanical strength. In the embodiments illustrated in the figures, the annular belt 5B is formed by a falling edge which extends downwards from the periphery of the discoid covering element 5A.
In these embodiments, the cover 5 is intended to come to cover in a substantially adjusted manner the top of the tank 2, so that the annular belt 5B surrounds from the outside the top of the annular side wall 2B and the free upper edge. 2C, while the discoidal covering element 5A rests on the free edge 2C, by means of the seal 6 interposed between the tank 2 and the cover 5. It is however perfectly conceivable for the annular belt 5B to be alternately intended to be inserted within the tank 2, so as to be surrounded by, and contained in, the tank 2, without departing from the scope of the invention.
In order to control the cooking pressure, the appliance 1 advantageously comprises a pressure regulating means 8, such as for example a regulating valve. Said pressure regulating valve is preferably mounted on the cover 5, so as for example to be carried directly by said cover 5 and arranged to maintain the pressure prevailing in the cooking chamber at a predetermined value substantially constant, called pressure of operation, which exceeds the atmospheric pressure by a value which is for example between substantially 10 and 120 kPa, or for example between 50 and 55 kPa, or between 85 and 90 kPa, or which is for example of the order of 65 kPa, or around 100 kPa. The general operating principle of such a pressure regulating means is well known as such, so that it is not necessary to describe it further here. The appliance 1 for cooking food under pressure advantageously comprises other operating members (for example a safety means with (opening 21 which will be described in more detail below), a safety valve for overpressure, etc. .).
The appliance 1 in accordance with the (invention also includes a bayonet locking system, in order to allow the (cooking enclosure formed by (association of the cover 5 and of the tank 2) to reach at least the abovementioned operating pressure without risk of see the cover 5 escape under the effect of the pressure prevailing within the enclosure. In other words, the locking system is designed to provide a mechanical connection between the tank 2 and the cover 5 which is sufficiently robust to prevent the cover 5 to separate from the tank 2 under (effect of the pressure build-up within (cooking chamber.
In this case, the bayonet locking system is designed to go from an unlocking configuration (illustrated in Figures 1,8, 16 and 17) to a locking configuration (illustrated in Figures 10 to 14, 20 and 21) by pivoting of the cover 5 relative to the tank 2, around in this case of said central vertical axis X-X ', so as to pass the device 1 from a locking waiting configuration, in which the cover 5 is attached on the tank 2 and rests freely on the latter (Figures 1 and 16) in a locking configuration in which the tank 2 and the cover 5 interact to prevent their free separation (Figures 10 and 20), and vice versa. Preferably, the bayonet locking system of the device 1 according to the invention is designed to pass from its unlocking configuration to its locking configuration by pivoting the cover 5 relative to the tank 2 according to a predetermined angular travel from from a predetermined position for pre-locking the binding of the cover 5 relative to the tank 2 (illustrated in FIGS. 1 and 17), in order to bring the cover 5 into a predetermined locking position relative to the tank 2 (illustrated in FIGS. 10 and 20 ).
Thus, in the embodiments illustrated in the figures, the device 1 changes from its locking standby configuration (corresponding to the pre-locking position of the cover 5) to its locking configuration (corresponding to the locking position of the cover 5) by rotation of the cover 5 relative to the tank 2 according to said predetermined angular travel a around the central axis XX ′, in a clockwise direction S1, and changes from its locking configuration to its waiting configuration for locking by rotation of the cover 5 relative to the tank 2 along said predetermined angular travel a around the central axis XX 'in an opposite counterclockwise direction S2, it being understood that the reverse is entirely possible without leaving the scope of the invention (counterclockwise S1 direction and clockwise S2 direction). The bayonet locking system of the cooking appliance 1 advantageously comprises for this purpose first and second series of protuberances 9A-9H, 10A-10H which are secured respectively to the cover 5 and to the tank 2 and which are designed, in order to ensure the locking and unlocking of the cover 5 relative to the tank 2, in order to engage, respectively disengage, mutually by rotation of the cover 5 relatively the tank 2 around the central vertical axis XX 'along said stroke predetermined angle a.
As is well known as such, the protrusions 9A-9H, 10A-10H of each of said first and second series are intended to cooperate in pairs, that is to say that each protuberance of one of said series is caused, by rotation of the cover 5 relative to the tank 2, to pass under a corresponding protuberance of the other series to lock the cover 5 relatively to the tank 2.
In the examples illustrated in the figures, each protuberance 9A-9H of the cover is constituted by a volume element obtained by a local volume deformation of the material constituting the cover of the cover 3, and more precisely of the annular belt 5B along which are preferably arranged, at regular intervals or not, the protrusions 9A-9H. Each protrusion 9A-9H thus forms a protuberance, which comes integrally with the annular belt 5B and which projects from said annular belt by defining on one side an internal convex face and on the other side, in "negative", a opposite concave outer face corresponding for example to the application imprint of a forming tool, preferably a stamping tool. The invention is however absolutely not limited to the implementation of specific outgrowths 9A-9H, and in particular obtained by stamping as in the examples illustrated in the figures. It is for example entirely conceivable that the protuberances 9A-9H of the cover are formed by flat tongues obtained by localized folding inward of the free edge of the annular belt 5B. The use of an element in volume is preferred, however, because it makes it possible to easily obtain, by simple deformation of material (stamping or other) a protuberance which has excellent mechanical properties and reduced dimensions. Thanks to these reduced dimensions, i! it is possible to switch the device 1 from the locking standby configuration (cover pre-locking position 5 relative to the tank 2) to the locking configuration (cover locking position 5 relative to the tank 2) by rotation relative of the cover 5 and of the tank 2 according to a predetermined angular travel a relatively small, preferably less than 30 °, for example between 10 ° and 25 °, it being understood that the invention is not limited to a travel value angular a particular, which can be greater than or equal to 30 °, or on the contrary clearly less than 30 °.
In the examples illustrated in the figures, the protuberances 10A-10H of the tank are formed by an annular rim which projects outwards from the free upper edge 2C, notches 11A-11H being formed through said annular rim so as to allow the passage of said cover protrusions 9A-9H, so that the portions of said annular rim which extend between each notch 11A-11H form the respective tank ramps intended to cooperate with the cover protuberances 9A-9H which form the ramps of lid. Thus, when the cover 5 comes to cover the tank 2, the cover protrusions 9A-9H can pass through the notches 11A-11H to find themselves lower than the annular rim. The device 1 is then in its pre-locking configuration (also called locking waiting configuration), from which the locking configuration can be achieved by simply rotating the cover 5 relative to the tank 2 according to the angular travel has predetermined around the vertical axis X-X ', which has the effect of angularly shifting the protrusions 9A-9H of the cover 5 and the notches 11A-11H of the annular rim, achieving a locking of the "bayonet" type .
According to the invention, the device 1 also comprises a safety element 12 fixed to the cover 5 to move with the latter pivotally relative to the tank 2, in this case according to said angular travel has predetermined. In other words, the security element 12 is embedded on the cover 5 so as to form with the latter a unitary subassembly. The security element 12 is fixed to the cover 5 by means making it possible to immobilize the security element 12 relative to the cover 5 in position. Thus, when the cover 5 is pivoted relative to the tank 2 along the stroke angular a to pass from the predetermined pre-locking position to the predetermined locking position, the security element 12, due to the fact that it is carried by the cover 5, also undergoes pivoting according to the same angular stroke a. In the examples illustrated in the figures, the security element 12 is disposed on the discoid cover element 5A, at the periphery of the latter.
Preferably, said safety elements 12 and tank handles 3 are at least partially in radial correspondence (in this case relative to the central axis XX ′) not only when the cover 5 occupies said predetermined locking position, but also when it occupies said predetermined pre-locking position. Thus, preferably, the security element 12 is always at least partially in radial alignment with the bowl handle 3 throughout the predetermined angular travel of the cover 5 between its pre-locking and locking positions. The use of an angular stroke of reduced amplitude, for example less than 30 ° as explained above, proves to be particularly advantageous by making it possible to minimize the amplitude of the angular sector along which the bowl handle 3, c ' that is to say to minimize the width L of said bowl handle 3.
According to the invention, the security element 12 comprises a latch 16 mounted to move radially relative to the cover 5 between:
on the one hand, a deployed position (illustrated for example in FIGS. 1 and 16) in which said latch 16 projects radially from said cover 5, so as to project radially outwards from the latter,
- and on the other hand a retracted position (illustrated for example in FIGS. 7 and 20) in which said latch 16 is retracted towards the inside of the cover 5, so as either to no longer extend radially towards the outside of the cover 5, or to always project radially outward from said cover 5, but to a lesser extent than in the deployed position.
In other words, in the deployed position the distance between the center of the cover 5 and the free outer end 16B of the latch 16 is greater than the distance between the center of the cover 5 and the free outer end 16B of the latch 16 when the latter is in the retracted position.
The apparatus 1 according to the invention is designed so that in one of said deployed and retracted positions, said lock 16 engages, when said locking system is in the locking configuration, a complementary conformation 17 of locking carried by the tank 2 , while in the other of said deployed and retracted positions, said latch 16 emerges from said complementary conformation 17 of locking.
The invention therefore relates to a first case, corresponding to the first embodiment of Figures 1 to 15, in which the latch 16 is mounted movable radially relative to said cover 5 between:
a deployed position in which the latch 16 projects radially from the cover 5 to engage, when the locking system is in the locking configuration, said complementary conformation 17 of locking carried by the tank 2,
- And a retracted position in which the latch 16 is retracted towards the inside of the cover 5 to disengage from said complementary conformation 17 of locking.
The invention also covers at least a second case, corresponding to the variant of FIGS. 16 to 21, according to which the latch 16 is mounted movable radially relative to said cover between:
a retracted position in which said latch 16 is retracted towards the inside of the cover 5 so as to engage, when the locking system is in the locking configuration, said complementary conformation 17 of locking carried by the tank 2,
- And a deployed position in which said latch 16 projects radially from the cover 5 to disengage from said complementary conformation 17 of locking.
Preferably, said engagement, by the latch 16, of the complementary conformation 17 is an interlocking engagement, and preferably an angular interlocking in the horizontal plane perpendicular to the central axis XX ′, intended to prevent the cover 5 to pivot relative to the tank 2 to return, from its predetermined locking position, to its pre-locking position. Thus, when the latch 16 engages, in its deployed position (variant of FIGS. 11 and 12) or in its retracted position (variant of FIGS. 20 and 21) and while the cover 5 is in its pre-locking position, the complementary conformation 17, said latch 16 and complementary conformation 17 attach to one another in order to limit their relative movement capacity. Conversely, in the retracted position (variant of FIGS. 11 and 12) or in the deployed position (variants of FIGS. 20 and 21), the latch 16 is located away from the complementary conformation to the point of no longer interacting with the latter. , thereby allowing the cover 5 to pivot relative to the tank 2 to return, from its predetermined locking position, to its pre-locking position.
Thanks to this particular design retained within the framework of the invention, the user can easily identify the mechanical part which ensures the interlocking (that is to say the latch 16) since it projects radially from the cover 5 to the less when it occupies its deployed position. The user can also easily identify whether said latch 16 is in the locking or unlocking situation since, depending on the position of said latch 16, the latter extends more or less radially from the cover 5. In order to further facilitate use, it is by possible example that a portion of the latch 16 is colored with a specific color (for example the color red) and that this colored portion becomes apparent to the eyes of the user only when the latch 16 is either in its deployed position or in its retracted position.
Advantageously, the radial extension formed by the latch 16, in particular when it is in the deployed position, serves to facilitate the positioning of the cover 5 in its pre-locking position relative to the tank. For this, the tank handle 3 advantageously has a reception configuration 30 intended to at least partially receive the latch 16. For example, in accordance with the variant embodiment of FIGS. 1 to 15, the reception configuration 30 is presented under the shape of a cavity of shape substantially conjugated to that of a free end portion of the latch 16. The user thus intuitively understands that the end portion in question must come to be housed in said cavity formed at the top of the tank handle 3 , naturally positioning the cover 5 in its pre-locking position. The lock 16 thus plays a double role of interlocking and position indexing.
Preferably, the tank handle 3 carries said complementary locking configuration 17, as illustrated in the figures. However, it is entirely conceivable that the complementary conformation 17 is not carried by the tank handle 3 but is directly attached to the tank 2. Preferably, the interlocking cooperation between the latch 16 and the complementary conformation 17 is a male / female cooperation, the latch 16 and the complementary conformation 17 respectively forming a male conformation and a complementary female conformation, or vice versa. In the first embodiment of FIGS. 1 to 15, the bowl handle 3 forms a housing, that is to say a cavity, which constitutes the complementary conformation 17. The housing in question is intended to receive within it the end free exterior 16B of the latch 16 when said latch 16 and cover 5 respectively occupy said deployed position and predetermined locking position. Thus, in the locking configuration of the device 1 of FIGS. 1 to 15, a free end portion of the lock 16 is captured in the housing integral with the tank handle 3 to prevent any untimely return of the cover 5 to its predetermined position. unlocking from its predetermined locking position. Conversely, in the second embodiment of FIGS. 16 to 21, the complementary conformation 17 this time forms not a housing but a locking protuberance which protrudes from the surface of the bowl handle 3. In this case, the bowl handle 3 has for example a substantially planar upper surface provided with a lug which rises vertically from said planar surface to form said blocking protuberance. In this embodiment, the latch 16 in turn forms a housing 18 intended to receive the locking protuberance when said latches 16 and cover 5 respectively occupy said retracted position and predetermined locking position.
Thus, once the cover 5 in the predetermined locking position with the lock 16 which engages the complementary conformation 17 (in its deployed position - Figure 1, or in its retracted position - Figure 20) it is impossible for the user, because mechanical cooperation of the lock 16 with the complementary conformation 17, to rotate the cover 5 so that it leaves its predetermined locking position and returns to its predetermined pre-locking position. This avoids any untimely unlocking attempt which could endanger the user.
Advantageously, the security element 12 comprises a main body 13 fixedly attached to the cover 5, said latch 16 being mounted movable relative to said main body 13 between its deployed and retracted positions. In the preferred embodiments illustrated in the figures, the main body 13 is directly connected to the cover 5 so as to be immobilized relative to the latter, for example by means of a connection of the embedding type. In the first embodiment illustrated in Figures 1 to 15, the main body 13 is in the form of an end portion of a cross member 14 of plastic material which locally covers the discoid cover element 5A according to a diameter of this latest. The crosspiece 14 in question thus extends longitudinally between two diametrically opposite ends which are substantially flush with the edge of the cover 5, preferably without protruding radially from the latter. In the second embodiment of Figures 16 to 21, the main body 13 is this time formed not by a crosspiece which extends over a whole diameter of the cover 5 without protruding radially from the latter, but in this case by a block disposed at the periphery of the cover 5, on the discoid cover element 5A, and which projects radially outwards from the cover 5 as can be seen in particular in FIG. 18. The block forming the main body 13 of the the apparatus of FIGS. 16 to 21 is made, like the cross-member 14, preferably made of plastic, and is fixedly attached to the discoid cover element 5A.
Advantageously, the device 1 also comprises a gripping member 15 which is fixedly attached to the cover 5 and is designed to be gripped manually to allow the handling and transport of the cover 5 through it, and in particular the pivoting of the cover 5 relative to the tank 2 according to said predetermined angular travel. Preferably, and in accordance with the first embodiment of Figures 1 to 15, the main body 13 comes integrally with said gripping member 15. More specifically, in the embodiment illustrated in Figures 1 to 15, the crosspiece 14 has a curved conformation at its center intended to form the gripping member 15, which therefore forms, with the main body 13 (which corresponds to one of the ends of the cross-member 14), one and the same piece in one piece II is however perfectly conceivable, without departing from the scope of the invention, for the gripping member 15 to be completely separate from the main body 13, in accordance for example with the embodiment of FIGS. 16 to 21. In this embodiment, the gripping member 15 is formed by a centered knob! which rises substantially from the center of the discoid cover element 5A and which is completely separate and independent from the main body 13.
Advantageously, the latch 16 is mounted to slide, and even more preferably to radial sliding, relative to the cover 5, in accordance with the embodiments illustrated in the figures, it being understood that the invention is not however limited to mounting sliding and that other types of mechanical connection (pivoting for example) can be implemented between the cover 5 and the latch 16. According to the first embodiment illustrated in Figures 1 to 15, in its deployed position, the latch 16 extends longitudinally between an interior end 16A in contact with the main body 13 and a free exterior end 16B, said complementary conformation 17 in this case forming, as described above, a housing intended to receive therein said free exterior end 16B, according to a nesting configuration which ensures the desired interlocking, To this end, the free external end 16B is sufficiently spaced from the centr e of the cover 5 to come cooperate with the housing in question.
Thus, in the first embodiment illustrated in Figures 1 to 15, the latch 16 is in the form of a tongue which, in the deployed position, projects radially over a distance D1 from the cover 5 (cf. figures 4 and 6) while in the retracted position said tongue either does not substantially project radially outward from the cover 5, or projects radially outward from the cover 5 over a distance D2 which is less than the distance D1 ( figure 7). In the second embodiment of FIGS. 16 to 21, the latch 16 is advantageously in the form of a slider in the form of a plate mounted to move between a retracted position in which the slider in question does not project substantially radially outward. of the main body 13, and a deployed position in which it on the contrary projects radially outward from said main body 13.
There are of course a multitude of possibilities for controlling the position of the latch 16, whether it is a purely manual, semi-automatic or fully automatic control. For example, the security element 12 comprises an elastic return means 19 interposed between said main body 13 and latch 16 to permanently recall the latch 16 in its deployed position, or to permanently recall said latch 16 in its retracted position. Preferably, said elastic return means 19 comprises a helical spring, it being understood that the invention is not limited to a particular elastic return means and that any suitable elastic body may be suitable depending on the design chosen. In a preferred embodiment, the latch 16 tends to occupy its permanently deployed position under the effect of the elastic return to which it is subjected, and returns to its retracted position for example under the effect of the exercise by the user d '' a direct control force opposite to the elastic restoring force. Advantageously, the security element 12 comprises a control member 20 carried by the cover 5 and manually movable relative to the latter to manually control the movement of the latch 16 from its deployed position to its retracted position and / or from its retracted position to its deployed position.
The control member 20 is for example carried by the main body 13 and preferably mounted to slide relative to the latter. Preferably, the control member 20 is directly integral with the lock 16, and advantageously carries the latter as in the embodiment illustrated in Figures 1 to 15 according to which the control member 20 and the lock 16 are formed by a single and even one piece in one piece. In this case, the control member 20 can be used by the user to push the latch 16 back into its retracted position, against the elastic return force exerted by the elastic return means 19. The operation of this variant of the device 1 can for example be as follows:
- The latch 16 is naturally in the deployed position under the effect of the return force exerted by the spring forming the return means 19.
The cover 5 is placed in its predetermined pre-locking position, the lock 16 occupying its deployed position and at least partially overhanging the tank handle 3 while being received in the cavity 30.
- Then the user rotates, by means of the gripping member 15, the cover 5 from its predetermined pre-locking position to its predetermined locking position while exercising, when the cover 5 arrives in the vicinity of its pre-locking, a control force on the control member 20 to manually control the movement of the latch 16 in its retracted position in order to bring the cover 5 into its locking position without the latch 16 blocking the movement in abutting against the side wall of the housing carried by the bowl handle 3.
- Once the cover 5 has arrived in the locked position, the user can release his effort on the control member 20, which will cause the elastic return of the lock 16 to its deployed position, so that the free end portion of the lock 16 will be captured in the housing forming a complementary conformation 17 for locking carried by the tank handle 3.
- Subsequently, to unlock the cover 5 if the security conditions (pressure level) allow it, the user will first exert a force on the control member 20 to return the latch 16 to its retracted position at against the elastic restoring force exerted by the means 19, then offset anguously, thanks to the gripping member 15, the cover 5 out of its predetermined locking position.
The invention is however not limited to this particular embodiment. I! is for example entirely conceivable, without departing from the scope of the invention, that the safety element 12 does not include elastic return means 19, in which case the control member 20 can be used to move the latch 16 from its deployed position to its retracted position and from its retracted position to its deployed position (whereas in the embodiment of FIGS. 1 to 15, the control member 20 does not directly ensure the displacement of the latch 16 from its retracted position to its deployed position, this displacement being more directly ensured by the elastic return means 19). It is also perfectly conceivable, without departing from the scope of the invention, that the latch 16 is not directly carried by the control member 20, as in the example of FIGS. 1 to 15, but that the control member 20 can be moved manually not only relative to the main body 13, but also relative to the latch 16, which in this case can advantageously be subjected directly to the elastic return force exerted by the elastic return means 19. In this latter particular embodiment, the security element 12 can include a blocking member which blocks the latch 16 in its retracted position, against the restoring force exerted by the elastic return means 19. In this case, the control member 20 is used to move the locking means in question so that it disappears and thus allows the lock 16 to automatically return, under the effect of the elastic return force, its deployed position . It is also conceivable that the elastic return means recalls the lock 16 not in its deployed position but rather in its retracted position, (all of the alternative variants envisaged above remaining applicable mutatis mutandis.
In the embodiment of FIGS. 16 to 21, (control member 20 allows for example not only to manually control the movement of the latch 16 from its retracted position to its deployed position but it advantageously also makes it possible to control the movement of the latch 16 from its deployed position to its retracted position It is also entirely possible in this embodiment to use an elastic return means interposed between the main body 13 and latch 16 to permanently recall the latch 16 either in its retracted position or in its deployed position All the variants envisaged previously in relation to the first embodiment of FIGS. 1 to 15 are here again entirely applicable, mutatis mutandis, to this second embodiment of FIGS. 16 to 21.
It is also conceivable that the passage of the cover 5 from its predetermined pre-locking position to its predetermined locking position automatically and temporarily locks the lock 16 in its deployed position and / or in its retracted position. For example, in the first embodiment of Figures 1 to 15, the cover handle 3 may advantageously be provided with a cam surface which cooperates with a complementary cam surface of the lock 16 so that the latter is pushed back into its retracted position under the effect of the rotation of the cover 5 from its predetermined pre-locking position to its predetermined locking position, the latch 16 returning automatically, under the effect of the elastic return means 19, in its deployed position a once the cam surface of the bowl handle 3 has passed, so as to be captured in the housing forming a complementary conformation 17.
The reverse is however not possible and the user must exert a positive force on the control member 20 to unlock the cover 5. In the embodiment of Figures 16 to 21, the latch 16 is for example pushed back permanently in its deployed position under the effect of the elastic return to which it is permanently subjected. The bowl handle 3 is advantageously provided with a cam surface designed to cooperate with a complementary cam surface carried by the lock 16 to push the latter back, under the effect of the pivoting of the cover 5 from its predetermined pre-locking position. in its pre-terminated locking position, in its retracted position where the housing 18 carried by the bolt 16 can come to capture the protuberance forming a complementary conformation 17 carried by the tank handle 3. it is also possible, in this embodiment of FIGS. 16 21, that the latch 16 is permanently subjected to an elastic restoring force which tends to keep it in its retracted position. In this case, the security element 12 may advantageously comprise a blocking member movable between a blocking position in which the blocking means maintains the latch 16 in its deployed position against the elastic restoring force, and a release position in which the locking means disappears to let the latch 16 return to its retracted position under the effect of the elastic restoring force. The control member 20 advantageously controls in this case the passage of the locking member from its locking position to its release position. It is also possible that the passage of the blocking means from its blocking position to its release position is automatically controlled by the cooperation of cam surfaces carried respectively by the bowl handle 3 and the safety element 12, in which case the control member 20 can this time be used to reset the mechanism, that is to say push the latch 16 back into its deployed position, if of course the security conditions (pressure level) allow it.
The control member 20 may be in any suitable form, and may preferably be slidably mounted relative to the main body 13, whether in a radial direction (embodiment of Figures 1 to 15) or in a tangential direction (embodiment of Figures 16 to 21). The control member 20 is for example in the form of a pusher, a lever, a pull tab, a slider, a button ... or any other suitable design.
Preferably, in order to provide optimum safety in use, the device 1 comprises an opening safety means 21 capable of changing, under the effect of the pressure level prevailing in the device 1 (this is ie in the cooking chamber), between a release configuration, in which it authorizes the unlocking of the cover 5 relative to the tank 2, and a blocking configuration, in which it prohibits the unlocking of the cover 5 relative to the tank 2. To this end, the safety means 21 comprises an element 21A movable between:
- A safety position in which it blocks the latch 16 in one of said deployed and retracted positions which corresponds to the position in which said latch 16 engages the complementary conformation 17
- And a neutral position in which it does not interfere with the latch 16 to allow the latter to reach the other of said deployed and retracted positions.
Preferably, the neutral position is a trailing position in which the security means 21 communicates the interior of the enclosure with the outside, while the blocking position is a sealed position in which the security means 21 does not put the interior of the cooking chamber into communication with the outside, which allows the pressure in the chamber to rise. For example, the element 21A is mounted to slide vertically between a high position (corresponding to your safety position) in which it is pushed back as soon as the pressure within the device 1 reaches a predetermined level, and a low position (corresponding to the neutral position) in which it is kept under the effect of its own weight, as long as the pressure within the device 1 does not reach said predetermined level. Preferably, in its high position, the element 21A, which is for example in the form of a safety finger, is capable of cooperating, directly or indirectly, with the lock 16 to prevent the latter from leaving its deployed position. or retracted in which it engages the complementary conformation 17. For example, in the embodiment of FIGS. 1 to 15, the finger 21A, when it is in the high position, is housed in a complementary conformation of the control member 20 which carries the lock 16, thus preventing the movement of the control member 20 and therefore of the lock 16. It is however entirely conceivable, without departing from the scope of the invention, that the finger 21A security cooperates directly with the lock 16.
A light is also advantageously provided in the body of the control member 20, so that the top of the safety finger 21A is visible when it is in the high position, thus making it possible to visually indicate to the user the state of operation of the device 1. The safety means 21 thus forms a safety means on opening, which prevents any inadvertent opening when the device 1 is under pressure.
Advantageously, when the lock 16 is in its position (deployed or retracted) of engagement of said complementary conformation 17, it cooperates with the security means 21 to prevent the latter from reaching its blocking configuration from its release configuration . This safety feature at poor closing, which prevents the device 1 from rising in pressure as long as the latch 16 does not engage said complementary conformation 17, can for example be implemented by means of an orifice formed through the 'control member 20 and whose dimensions are substantially adjusted to that of the finger 21A, so that when the orifice is not exactly in line with finger 21A, the latter abuts against the edges of the orifice question what prevents it from reaching its blocking position.

权利要求:
Claims (14)
[1" id="c-fr-0001]
1 - Apparatus for cooking (1) pressurized food comprising a tank (2), a cover (5) independent of the tank (2), as well as a bayonet locking system designed to change from a configuration of unlocking in a locking configuration by pivoting of the cover (5) relative to the tank (2), said device (1) also comprising a safety element (12) fixed to the cover to move with the latter pivoting relative to the tank (2), said device (1) being characterized in that said security element (12) comprises a latch (16) mounted to move radially relative to said cover (5) between on the one hand a deployed position in which said latch (16 ) protrudes radially from said cover (5) and on the other hand a retracted position in which said latch (16) is retracted towards the inside of the cover (5), so that in one of said deployed and retracted positions, said latch (16) engages, when said locking system age is in the locking configuration, a complementary conformation (17) of locking carried by the tank (2), while in the other of said deployed and retracted positions, said latch (16) emerges from said complementary conformation (17) of locking.
[2" id="c-fr-0002]
2- Apparatus (1) according to claim 1 characterized in that said security element (12) comprises an elastic return means (19) for permanently recalling said lock (16) in its deployed position or in its retracted position.
[3" id="c-fr-0003]
3- apparatus (1) according to one of the preceding claims characterized in that said security element (12) comprises a main body (13) fixedly attached to the cover (5), said latch (16) being mounted movable relatively to said main body (13) between its deployed and retracted positions.
[4" id="c-fr-0004]
4- Apparatus (1) according to one of the preceding claims characterized in that said security element (12) comprises a control member (20) carried by the cover (5) and manually movable relative to the latter to manually control the displacement of the latch (16) from its deployed position to its retracted position and / or from its retracted position to its deployed position.
[5" id="c-fr-0005]
5 - Apparatus (1) according to claims 3 and 4 characterized in that said control member (20) is carried by said main body (13) and mounted to slide relative to the latter.
[6" id="c-fr-0006]
6- apparatus (1) according to claim 3 or 5 characterized in that in its deployed position, said latch (16) extends longitudinally between an inner end (16A) in contact with the main body (13) and a free outer end (16B), said complementary conformation forming a housing intended to receive therein said free outer end (16B).
[7" id="c-fr-0007]
7 - Apparatus (1) according to one of the preceding claims characterized in that said tank (2) is provided with a tank handle (3) which forms a local protrusion extending radially from the tank (2) , and which carries said complementary locking conformation (17).
[8" id="c-fr-0008]
8- Apparatus (1) according to one of the preceding claims characterized in that said locking system is designed to pass from its unlocking configuration to its locking configuration by pivoting the cover (5) relative to the tank (2) according a predetermined angular travel (a) from a predetermined position of pre-locking of the cover (5) relative to the tank (2), to bring the cover (5) to a predetermined position of locking relative to the tank (2) ).
[9" id="c-fr-0009]
9 - Apparatus (1) according to claims 7 and 8 characterized in that said security element (12) and bowl handle (3) are at least partially in radial correspondence not only when the cover (5) occupies said predetermined position of locking, but also when it occupies said predetermined pre-locking position.
[10" id="c-fr-0010]
10-apparatus (1) according to claim 7 or 9 characterized in that said complementary conformation (17) forms a locking protuberance which protrudes from the surface of the bowl handle (3), said latch (16) forming as for him a housing (18) for receiving said blocking protrusion.
[11" id="c-fr-0011]
11 -Apparatus (1) according to one of the preceding claims, characterized in that it comprises an opening safety means (21) capable of changing, under the effect of the pressure level prevailing in the apparatus ( 1), between a release configuration, in which II authorizes the unlocking of the cover (5) relative to the tank (2), and a blocking configuration, in which it prohibits the unlocking of the cover (5) relative to the tank (2) 2), said security means (21) comprising an element (21 A) movable on the one hand a security position in which it blocks the latch in one of said deployed and retracted positions which corresponds to the position in which said latch (16) engages the complementary conformation (17) and on the other hand a neutral position in which it does not interfere with the latch (16) to allow the latter to reach the other of said deployed and retracted positions.
[12" id="c-fr-0012]
12 -Apparatus (1) according to claims 7 and 8 characterized in that when it occupies its deployed position, said latch (16) at least partially overhangs said tank handle (3) when the cover (5) occupies said predetermined position pre-locking.
[13" id="c-fr-0013]
13-apparatus (1) according to one of the preceding claims characterized in that it comprises a gripping member (15) which is fixedly attached to the cover (5) and is designed to be gripped manually to allow manipulation and transporting the cover (5) through it.
5 14-apparatus (1) according to claims 3 and 13 characterized in that said main body (13) comes integrally with said gripping member.
15-Apparatus (1) according to one of the preceding claims characterized in that it is designed to be subjected to an external heating source, such as for example a hob (15).
1/7
[14" id="c-fr-0014]
14, 15,
20 21 ^A
2A

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同族专利:

公开号 | 公开日

CN108294613B|2021-07-30|

ES2750235T3|2020-03-25|

CO2017012355A1|2018-02-28|

JP2018108354A|2018-07-12|

CN108294613A|2018-07-20|

FR3059534B1|2019-06-21|

EP3329810A1|2018-06-06|

CN209136190U|2019-07-23|

KR20180063839A|2018-06-12|

EP3329810B1|2019-09-11|

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法律状态:
2018-01-02| PLFP| Fee payment|Year of fee payment: 2 |

2018-06-08| PLSC| Search report ready|Effective date: 20180608 |

2019-12-30| PLFP| Fee payment|Year of fee payment: 4 |

2021-09-10| ST| Notification of lapse|Effective date: 20210806 |

优先权:

申请号 | 申请日 | 专利标题

FR1661864A|FR3059534B1|2016-12-02|2016-12-02|BAIONNETTE COOKER AND MOBILE LOCK|

FR1661864|2016-12-02|FR1661864A| FR3059534B1|2016-12-02|2016-12-02|BAIONNETTE COOKER AND MOBILE LOCK|

ES17204704T| ES2750235T3|2016-12-02|2017-11-30|Self-cooking, bayonet and movable bolt utensil|

CONC2017/0012355A| CO2017012355A1|2016-12-02|2017-11-30|Pressure cooker bayonet and mobile lock|

EP17204704.5A| EP3329810B1|2016-12-02|2017-11-30|Pressure cooker with bayonet and mobile lock|

KR1020170163923A| KR20180063839A|2016-12-02|2017-12-01|Bayonet pressure cooker and mobile lock|

JP2017231760A| JP2018108354A|2016-12-02|2017-12-01|Bayonet pressure cooker and mobile lock|

CN201711260452.3A| CN108294613B|2016-12-02|2017-12-04|Snap-on pressure cooker and movable lock|

CN201721663052.2U| CN209136190U|2016-12-02|2017-12-04|Buckle-type pressure cooker and removable lock|

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