• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The Lunchbox looks like a cuboid shoe box. It has at least one cover (3, 4) on its upper side, with which it is heat-tight sealable. Advantageously, the lid is designed as a hinged lid with two lid wings, which are ever hinged to the upper edges of the side walls. As a special feature, the lid wings can be opened by push buttons, pull handles, slide handles or knobs on opposite sides of the lunch box are simultaneously actuated, whereby a mechanism is actuated or can be triggered, by means of which the lid (3, 4) can be opened. The lid wings are mounted on the lunch box and guided so that they are retractable after the opening process in a slot-shaped recess (20) in one of the side walls and thereafter are enclosed on all sides except for the upper narrow side.
    公开号:CH712691A2
    申请号:CH01748/16
    申请日:2016-12-27
    公开日:2018-01-15
    发明作者:Graf Fabian；Kenessey Aron；Piech Dariusz；Streng Daniel
    申请人:Faitron Ag；
    IPC主号:
    专利说明:

    Description: The present invention relates to a lunch box for storing, transporting and heating food, in particular food prepared for consumption, such as is known in principle from WO 2015/177 726 A1 and is described in detail there. It is a lunch box that allows you to take prepared meals to work, school, or while traveling, for example, and warm them up within a few minutes, allowing you to have a warm meal anytime, anywhere. The lunch box according to WO 2015/177 726 A1 comprises an upper shell and a lower shell, which are hinged or hingedly connected to one another on one long side, a closure being provided on the opposite long side of the hinge. A bowl with a circumferential and angled edge area can be inserted into the lower shell, into which the food is placed and which can be removed from the lunch box.
    To heat the food, the bottom is inside, or the walls and the lid are heated on the inside, while they are hardly more than lukewarm thanks to the insulation used on the outside. The energy supply for the built-in electrical heating elements is combined and is possible either on the usual power supply on 110V / 230V AC, or on 5V or 12 / 24V DC for connection to a car or truck cigarette lighter. A variant with 20V should enable connection to the UBS interface of a computer. A problem that has not been solved with this lunch box is the following: When the lid is opened, the inside is freely accessible. This inside can be very hot and there is therefore a risk that the users of such a lunch box become serious when touching the inside. The present invention has for its object to develop such a lunch box in such a way that it opens and when Using the lunch box does not allow the user to get burned unless he tries carefully to touch hot spots on the lunch box.
    This object is achieved by a lunch box, which is designed in its outer appearance similar to a cuboid box, preferably with rounded corners, with at least one lid on its top, so that it can be heat-sealed by this at least one lid, and which is characterized in that the at least one lid can be opened by pushbuttons, sliders, pull buttons or rotary handles on opposite sides or on the top of the lunch box being actuated simultaneously, whereby a mechanism can be actuated or triggered by means of which the lid can be opened, and wherein the at least one lid is mounted and guided on the lunch box in such a way that after the opening process it can be lowered into a slot-shaped recess in one of the side walls and is then enclosed on all sides by the side wall except for its upper narrow side.
    When the lunch box is open, the at least one lid does not have to be removed.
    The invention is described below in exemplary embodiments with reference to drawings and its function is explained.
    It shows:
    [0006]
    1: a lunch box according to the invention seen obliquely from above;
    Fig. 2: The lower bottom part of the lunch box, with chambers for receiving the electrical control for the heating elements and
    Fig. 3: The upper frame part of the lunch box;
    Fig. 4: A single cover part of a two-leaf hinged cover;
    Fig. 5: The lunch box with its lid parts slightly raised over the lunch box for display purposes;
    Fig. 6: A half of another version of the lunch box after a longitudinal cut along the middle through the
    Lunch box, with a side part, two half end faces, half a bottom part, a lid part and the parts for its sinking into the side wall of the lunch box;
    Fig. 7: The lid, the sliding hinges and a side wall part for lowering the lid in the side wall of the lunch box;
    Fig. 8: The lid, the sliding hinges and a side wall part for lowering the lid in the side wall of the lunch box, with a side wall and the two adjoining halves of the end faces;
    Fig. 9: The lid, the sliding hinges and a side wall part for lowering the lid in the side wall of the lunch box seen from behind and diagonally below;
    Fig. 10: The side wall part for countersinking the lid, with its sliding hinges in an enlarged view;
    CH 712 691 A2
    Fig. 11: The lunch box half with the lid closed, seen from the longitudinal center into the lunch box half;
    Fig. 12: This half of the lunch box swung open by 45 °;
    Fig. 13: This lunch box half with the lid wing swung open at 90 °;
    Fig. 14: This lunch box half with the lid wing swung open by 90 ° at the beginning of the lowering thereof into the side wall;
    15: This lunch box half with the lid wing swung open by 90 ° towards the end of the lowering into the side wall;
    Fig. 16: This lunch box half of the lid wing lowered into the side wall;
    Fig. 17: This lunch box half of the lid wing lowered into the side wall shown in another view. Fig. 18: shows a realistic lunch box in the closed state of the lid wings;
    Fig. 19: shows this lunch box connected to an energy source and with a lid wing in a half-open state - only for illustration purposes;
    Fig. 20: shows this lunch box connected to an energy source and with a lid wing in the fully opened state and with a view inside - only for illustration purposes;
    Fig. 21: shows this lunch box decoupled from the energy source and swung open completely with the two lid wings in the vertical position to the floor;
    Fig. 22: shows this lunch box, connected to the energy source, with the lid wings fully retracted, in the state for removing the food (when filled);
    Fig. 23: shows this lunch box, connected to the energy source, with the lid wings fully recessed and a view of the inside of the empty bowl, which is intended to accommodate the food.
    The lunch box according to the invention is essentially cuboid, and it comprises a lid attached to the side of the box or two such lids which form two wings, which are then attached to opposite longitudinal sides of the box at the upper edge of the two opposite side walls. It is clear that the box does not have to be sharp-edged, but can have rounded corners and edges, and can also be tapered towards the two ends, so that it has an appealing design. The lunch box is made of plastic and / or metal, for example polypropylene (PP). The lid parts can be securely closed with a snap lock or snap lock. There is a power connection socket, which can be designed in the form of conventional plugs as well as a USB connection. There is also an LED on the outside of the lunch box as a status indicator of a built-in electric heater and a start button. A bowl made of preferably an aluminum material with a thickness of approx. 0.5 mm can be inserted into the lunch box, which serves to hold the food. Alternatively, a shell can also be made from a suitable plastic, a Teflon material or from wood or other materials. This shell has an edge region which is formed all around and is angled in an L-shape. The shell can be hung in a groove on the box by means of a smaller leg of the edge area, so that it is securely held therein. A groove is also formed in the longer, horizontal legs of the peripheral edge region of the shell, into which a seal, for example an O-ring, is inserted. When the lid or lid wing is closed, they press on the seal and fix the edge areas of the bowl so that the lunch box is sealed. The bowl can also be fixed in the lunch box using locking cams and / or click connections. The bowl can be easily removed from the lunch box and put back into it for cleaning, filling and transport. For example, standardized filled trays can be sold from the refrigerator compartment of a shop. They are then placed in the lunch box and this can be heated regardless of time and place and can be eaten after a few minutes.
    The walls of the lunch box include thermal insulation, for example made of a PUR integral foam, or they have slot-shaped recesses over almost their entire area, which are filled with expanded perlites, and also in the side walls, the floor and The lids are arranged against the inside, each with a heating element in the form of an electrical heating foil. The thermal insulation can also be formed from a Keraguss molded part, an airgel molded part or an EPS molded part. A so-called Vaccum Insulated Panel VIP can also be used.
    The connection between the power connector and control electronics and the heating elements is made via cable connections. The control electronics are arranged on a flat circuit board, which in turn is inserted in a space-saving manner in a recess on a side wall or in the floor. The control electronics include the elektroni3
    CH 712 691 A2 see control, a safety circuit, a load switch and also a power supply. The electronic control should include at least a temperature sensor, a heating switch, the start-stop switch and the output for the LED. The electronic control can also allow different heating modes, for example bottom and / or top heat. The heating element consists, in a manner known per se, of a metallic heating foil which is embedded between two silicone layers for electrical insulation. However, Kapton heating foils, polyester heating foils or contact heating elements can also be used, for example. The power supply can range from 5V to 240V, including common tolerances. For example, when operating with a voltage of 5V or 12V / 24V DC, no special safety measures need to be provided. In the case of a version with 110V / 230V AC, the lunch box must either be earthed or double electrical insulation must be installed. When choosing the connection variants, the current carrying capacity, temperature and resistance to cleaning agents must be taken into account. The electrical connections are watertight.
    The heating power of the heating film should be at least about 20-150 W to allow heating of the food if necessary up to about 140 ° C. Depending on the food, smaller or larger heating capacities can also be used, whereby the values also depend on whether a heating element is only provided in the bottom or on all sides and in the lid. If a heating element is arranged in the lid, its heating power is normally lower than that of the heating element in the bottom. The lunch box is connected to a voltage source to heat a food and the start button is pressed. When it lights up, the LED signals the heating process over a period of time preset in the control electronics. After the heating period has elapsed, the control electronics switch off the heating foil and the LED goes out. Operating modes can also be programmed, for example automatic switching on and off of a time element controlled and programmable. In this case the lunch box is equipped with a display and a keyboard for setting the respective operating modes.
    Fig. 1 shows an embodiment of such a lunch box seen obliquely from above. One can see a lower part 1 with a floor, an upper frame part 2, two cover parts 3, 4, which are attached to the outside of the side walls like door leaves and can be swung open about these hinges. The USB interface 5 is used to connect the lunch box to a computer for drawing electrical energy at a voltage of 20V. On the other side of the lunch box, which is not visible here, there are further interfaces, for 100V / 230V and for 12 / 24V. The tray 6 which can be inserted into the lunch box is also indicated here, although of course it cannot be seen in this illustration.
    Fig. 2 shows the lower part 1 with the bottom 7 of the lunch box, with chambers 8.9 for receiving the control electronics and the mechanisms for swinging the lid open, however they are designed in detail. 3 shows the upper frame part 2 belonging to this lower part 1 and which can be placed thereon and which is firmly connected to the lower part by screwing, welding or gluing the corresponding plastic parts with their heating foils inside. The insulation and the heating element are thus hermetically sealed in the walls. 4 shows a wing of the two-leaf cover. This cover part also contains a heating foil and its inside can therefore become very hot. 5 shows the lunch box as a whole, the two lid parts 3, 4 being shown here slightly lifted off the lunch box in order to reveal the view inside. In this interior, the removable bowl 6 with the food can be inserted. Up to this point, the lunch box is known in principle and is described in a slightly different version in WO 2015/177 726 A1.
    If the lid part of such a lunch box is opened in the hot state, there is a risk that the user can cause burn injuries. The aim of this construction is to reliably avoid this.
    A construction as shown in FIG. 6 is suitable for this. In order to better illustrate the important features, only half of this version of the lunch box is shown here after a longitudinal section along the middle through the lunch box, with a side part 13, two half end faces 10, 11, a half bottom part 12, a cover part 14 and parts 15, 16 for its sinking into side part 13 (side wall) of the lunch box. Two such illustrated parts joined together in one piece at this interface then result in the entire lunch box. Sliding hinges 15 which slide along the inner side wall 16 on the outside in grooves are used for opening the cover parts, as will become clear from further drawings.
    Fig. 7 shows the lid 14, these sliding hinges 15 and the inner side wall part 16 with the grooves 17 for countersinking the lid 14 in the side wall of the lunch box, and in Fig. 8 it is shown how the lid 14, the Sliding hinges 15 and the side wall part 13 can be assembled with its grooves 17. In Fig. 9, the lid 14, the sliding hinges 15 and the side wall part 16 with the grooves 17 for countersinking the lid 14 in the side wall of the lunch box are seen from behind and obliquely below. The three hinge bushes 19 can be seen on the back of the cover. The sliding hinges 15 are guided in the grooves 17 and can be moved up and down therein. This is shown in an enlarged view on the basis of FIG. 10, namely how the sliding hinges 15 are seated in these grooves 17. Small bolts 18 on the lid act as hinge bolts and allow the hinged lid 14 to pivot. As an alternative to the solution described, rails can also be used, along which the hinges are guided in a slot-shaped recess perpendicular to the bottom of the lunch box. Or it can be a rod that fits into the recess, to which the cover is attached in a hinged manner, for example via a film hinge, so that the rod is connected in one piece to the cover. The rod is then guided along its two ends by rails which can move up and down perpendicularly to the floor at the two ends of the recess or the end faces thereof.
    CH 712 691 A2 FIGS. 11 to 17 show the function of this special stop of the cover parts. First, the lunch box half is shown in FIG. 11 with the lid 14 closed, seen from the longitudinal center into the lunch box half. The situation follows in FIG. 12 when the lid 14 has already been swung open by 45 °, followed by the illustration in FIG. 13, in which the lunch box half is shown with the lid wing swung open by 90 °. As soon as the lid wing has reached this position, it falls down due to the force of gravity with its hinges 15 along the grooves 17 into the recess 20 in the side wall and is shown here in FIG. 14 just at the beginning of this lowering. In the Fig.
    it is shown when more than half of it has already been lowered into the side wall and in FIG. 16 it has completely disappeared into the side wall. 17, this situation can be seen from a different angle. It can be seen that only a narrow side 21 of the cover 14 is still openly visible. The side wall 16 adjoins the inside of the lunch box with the grooves 17 arranged on the outside.
    If both cover parts are sunk in this way, they are no longer touchable on their hot sides and a risk of burns is eliminated. On the other hand, while the hot lid parts or lid wings are being opened, contact with the hot inner sides is possible. For this reason, further measures must be taken to ensure that contact is excluded even during this opening phase.
    For this purpose, the lunch box is constructed so that it is designed in its outer appearance similar to a cuboid shoe box, with at least one lid on its top, so that it can be heat-sealed from this at least one lid. As special features, however, it has at least one lid that can only be opened by push buttons, pull handles, slide handles or rotary handles on opposite sides of the lunch box having to be operated simultaneously. As a variant, these actuating elements can also both be arranged on the top of the lunch box, outside the lid. You then press or pull on these two actuating elements with your two hands at the same time, or you turn or push them, depending on the version. With this actuation, a mechanism inside the lunch box is actuated or triggered, by means of which the lid is opened. The lid is, for example, as described and shown in the drawings, pivotably mounted and guided on the lunch box in such a way that after the opening process, it can be lowered into a slot-shaped recess in one of the side walls and is then enclosed on all sides except for the upper narrow side.
    The opening and closing can be done, for example, so that push buttons are attached to two opposite sides of the lunch box on the outside, and that when pressing these push buttons at the same time a mechanism with large translation can be actuated, so that the at least one lid during a vigorous Pushing movement and can be lifted or swung open by it. As soon as the lid has been swung open by 90 ° into a position perpendicular to the bottom of the lunch box, it falls into a slot-shaped recess in a side wall of the lunch box and is sunk therein.
    In a further embodiment, the lid can be opened by pull handles on the outside of two opposite sides of the lunch box attached. When these pull handles are pulled vigorously at the same time, a mechanism inside the lunch box is actuated with a large translation, so that the at least one cover can be lifted or swung open during the pulling movement. When the lid is subsequently placed in a position perpendicular to the bottom of the lunch box, it falls into a slot-shaped recess in a side wall of the lunch box and is sunk therein.
    In a further embodiment, the opening of the lid works by means of slide handles which are attached to the outside on two opposite sides of the lunch box. These must be moved at the same time, for example against the floor on which the lunch box rests. They act on a mechanism with a large translation, so that the at least one cover is lifted and or swung open during the sliding movement and by it, and the cover can subsequently be brought into a position perpendicular to the bottom of the lunch box and in this position into a slot-shaped recess in a side wall the lunch box is sunk.
    The opening of the lid can also be realized by turning handles on the two opposite sides of the lunch box attached to the outside. When these rotary terms are rotated at the same time, a mechanism with large translation is actuated, so that the at least one cover can be lifted or swung open during the rotary movement and by it. The lid is brought into a position perpendicular to the bottom of the lunch box and in this position it falls into a slit-shaped recess in a side wall of the lunch box.
    The underlying mechanism or mechanism can be one that is biased with the manual closing of the open lid parts with a spring. The lid can then be opened by pressing the pushbuttons, pulls, push handles or twist grips on two opposite sides of the lunch box, then actuating the spring-loaded mechanism, by pushing a latch against a spring force so that the lid is released by releasing the previously tensioned spring can be lifted or swung open during actuation of the push buttons, pull handles, slide handles or twist grips, and the lid can subsequently be brought into a position perpendicular to the bottom of the lunch box by gravity or spring force and in this position due to gravity into a slot-shaped recess one side wall of the lunch box is retractable. In all the versions described so far, the hinges 15 can be tensioned downwards by means of tension springs or rubber-elastic ropes, so that the hinged lid 14, which is pivotable on them, is securely pulled into the recess in the side wall.
    CH 712 691 A2 [0024] The covers can also be pivoted open and closed electrically. In such an embodiment, an electrically operated mechanism, by means of which the at least one lid can be raised or swung open, is preferably actuated by simultaneous and constant actuation of the pushbuttons, pull handles, slide handles or twist grips on two opposite sides of the lunch box by means of an electrical control unit is brought upright to the bottom of the lunch box. The simultaneous and constant actuation of these actuating elements is important because this is the only way to ensure that no hand remains with which the user could accidentally touch the underside of the lid during the opening process until it is completely lowered into the recess and parked there. It is also possible to press the pushbuttons only once, etc.
    From the initially closed state of the lid, which is hot on the inside after being heated, it is sunk electrically into the slot-shaped recess in a side wall of the lunch box, or it falls into this recess due to gravity and remains protected and parked therein without its inside can still be touched. The control of the drive can be designed in such a way that when the push buttons, pull handles, slide handles or rotary handles are released, the cover or covers immediately and quickly return to their closed position by the electrical mechanism. The point is that the user cannot touch the hot inside of the lid. If he constantly presses two opposite buttons, the lid is opened and sunk into the recess. But if he suddenly released one or both buttons with one or both hands during this process, he could touch the inside. Therefore, if this happens, the lid should immediately and quickly return to the closed position. In addition, the control system is programmed in such a way that the lid returns to its open position driven by the electrically operated mechanism when the pushbuttons, pull handles, slide handles or rotary handles are pressed again. As an alternative, an electric lever mechanism is conceivable which, when actuated, lifts the lid or lids vertically to the floor, then swivels outward and then actively moves down into the recess.
    18 to 23, a realistic lunch box is shown in different states. In Fig. 18 it is shown with closed lid wings 14. This lunch box measures approx. 20 cm in length, approx. 6 cm in height and approx. 15 cm in width and the bowl inserted into it has an internal volume of 900ml. The inner shell is made of metal if it is also to be used separately for roasting on a conventional stove or over a fire, or else it can be made of a suitable plastic, Teflon or other suitable food-safe material. The USB port 5 can be seen on the front side visible here. The device is designed for an operating voltage of 20V DC. Additional connections can be provided for operation with 12V / 24V DC, or for 110V / 230V AC. A pressure switch 22 for actuating the opening of the cover can also be seen on this end face. The same pressure switch is located on the opposite end. In Fig. 19 the lunch box is connected to an energy source and with a lid wing 14 in the half-open state - only for illustration purposes, because this condition does not arise in practice on this device, because the lid wings are swung open synchronously, because the swing-open process and that Sinking the lid wing should be done quickly to avoid touching the hot inside. 20 shows this lunchbox connected to an energy source via a power cable, in this example to the 20V DC source of a UBS interface on a computer, and with a lid wing 14 in the fully opened state and with a view inside - only for illustration purposes. 21 shows the lunch box uncoupled from the energy source and swung open completely with the two lid wings 14 into the vertical position to the floor. You can see the inserted bowl 6 for receiving the food portion. 22 shows the lunch box connected to the energy source with the lid wings 14 fully retracted in the state for removing the food when the bowl is full, and in FIG. 23 the lunch box is still connected to the energy source fully recessed lid wings 14 and shown with a clear view inside the empty bowl 6, which is intended for receiving the food. The bowl 6 can be taken out for the preparation of the meal and, for example, placed in an oven or placed on a hotplate in order to cook the food or for roasting or just for heating. This lunch box allows you to overcome space and time with one serving of food and thus allow you to take a warm meal anywhere and at any time. The only requirement is a power source as described.
    When the lunch box is open, the at least one lid which is hot on the inside after the heating of dishes does not have to be removed. The lid according to the invention also serves to keep the food warm when consumed, since the residual heat of the lid is given off in the side walls.
    Reference symbols [0027]
    lower part
    frame part
    cover part
    cover part
    USB interface
    CH 712 691 A2
    Bowl
    ground
    chamber
    chamber
    front
    front
    the bottom part
    side panel
    cover part
    sliding hinge
    Side wall
    groove
    bolt
    hinge bush
    recess
    narrow side
    pressure switch
    权利要求:
    Claims (10)
    [1]
    claims
    1.Lunch box, which is designed in its outer appearance like a cuboid shoe box, with at least one lid (14) on its upper side, so that it can be heat-tightly closed by this at least one lid (14), characterized in that the at least one lid ( 14) can be opened by push buttons, pull handles, slide handles or rotary handles on opposite sides (10, 11) or on the top of the lunch box can be actuated simultaneously, whereby a mechanism can be actuated or triggered, by means of which the lid (14) can be opened , and wherein the lid (14) is mounted and guided on the lunch box in such a way that after the opening process it can be sunk into a slot-shaped recess (20) in one of the side walls (13) or between the inside wall of the box and the inserted bowl and afterwards is enclosed on all sides except for the upper narrow side (21).
    [2]
    2. lunch box according to claim 1, characterized in that the at least one lid can be opened by push buttons on two opposite sides or on the top of the lunch box outside, and that a mechanism with translation can be actuated while pressing these push buttons, so that the at least one cover (14) can be lifted or swung open during the pushing movement and by it, and the cover (14) can subsequently be brought into a position perpendicular to the bottom (12) of the lunch box and in this position into a slot-shaped recess (20) in a side wall (13, 16) of the lunch box or between a side wall and the inserted bowl.
    [3]
    3. Lunch box according to claim 1, characterized in that the at least one lid (14) can be opened by pulling handles on two opposite sides (10, 11) of the lunch box being attached to the outside, and while pulling these handles a mechanism with translation Can be actuated so that the at least one cover (14) can be lifted or swung open during the pulling movement and by it, and the cover (14) can subsequently be brought into a position perpendicular to the bottom (12) of the lunch box and in this position into a slot-shaped recess (20) in a side wall (13, 16) of the lunch box or between a side wall and the inserted bowl is retractable.
    [4]
    4. Lunch box according to claim 1, characterized in that the at least one lid (14) can be opened by sliding handles on two opposite sides (10, 11) of the lunch box being attached to the outside, and a mechanism while simultaneously moving these sliding handles downwards can be actuated with translation so that the at least one cover (14) can be lifted or swung open during the sliding movement and by it, and the cover (14) can subsequently be brought into a position perpendicular to the floor (12) of the lunch box and in this position into a position slot-shaped recess (20) in a side wall (13, 16) of the lunch box or between a side wall and the inserted bowl can be countersunk.
    CH 712 691 A2
    [5]
    5. lunch box according to claim 1, characterized in that the at least one lid (14) can be opened by turning handles on two opposite sides of the lunch box attached to the outside, and that while rotating these rotating terms, a mechanism with translation can be operated so that the at least one cover (14) during the rotary movement and can be lifted or swung open by it, and the cover (14) can subsequently be brought into a position perpendicular to the bottom (12) of the lunch box and in this position into a slot-shaped recess (20) in one Side wall (13, 16) of the lunch box or between a side wall and the inserted bowl is retractable.
    [6]
    6. Lunchbox according to claim 1, characterized in that the at least one lid (14) can be opened by a mechanism which can be actuated by actuating the push buttons, pull handles, slide handles or rotary handles on two opposite sides (10, 11) of the lunchbox moves a pawl so that the at least one cover (14) can be lifted or swung open by releasing a previously tensioned spring during actuation of the pushbuttons, pull handles, slide handles or twist grips, and the cover (14) subsequently by spring force into a bottom (12) the lunch box vertical position can be brought and in this position due to gravity in a slot-shaped recess (20) in a side wall of the lunch box or between a side wall and the inserted bowl is retractable.
    [7]
    7. Lunch box according to claim 1, characterized in that the at least one lid (14) can be opened by simultaneously and continuously actuating the push buttons, pull handles, slide handles or twist grips on two opposite sides (10, 11) of the lunch box via an electrical one Control unit, an electrically operated mechanism can be actuated, by means of which the at least one cover (14) can be raised or swung open, and the cover (14) can subsequently be brought into a position perpendicular to the floor (12) of the lunch box and then afterwards by means of the electrically operated mechanism from this position into a slot-shaped recess (20) in a side wall (13, 16) of the lunch box or between a side wall and the inserted shell, and when the pushbuttons, pull handles, slide handles or twist handles are released, the electrical mechanism locks and closes again immediately the open position when the push buttons are pressed again, Pull handles, slider handles or rotary handles are moved into their closed position by the electrically operated mechanism.
    [8]
    8. Lunch box according to one of the preceding claims, characterized in that two hinged on the outside on the longitudinal edges of the lunch box lid (14) are designed as hinged lid, the hinges (15) in perpendicular to the bottom (12) grooves (17) along these grooves (17) are slidably mounted so that they can be moved downwards in the grooves (17) in the slots (17) and can be sunk in the slot-shaped recess (20) in a vertical position to the floor (12) of the lunch box together with these hinges (15).
    [9]
    9. Lunchbox according to one of the preceding claims, characterized in that the one or more lids (14) and / or their hinges (15) in the slot-shaped recesses (20) of the side walls into which they are intended to be lowered, by means of tension springs or elastic ropes are stretched down.
    [10]
    10. Lunchbox according to one of the preceding claims, characterized in that the at least one lid can be opened by an electrically operated mechanism actuated by simultaneous and constant actuation of the push buttons, train handles, slide handles or twist grips on two opposite sides of the lunchbox via control electronics is, by means of which the at least one lid can be raised or swung open, and the lid can subsequently be brought into a position perpendicular to the bottom of the lunch box by means of the electrically operated mechanism and can then be lowered from this position into a slot-shaped recess in a side wall of the lunch box, when the pushbuttons, pull handles, slide handles or twist handles are released, the electrical mechanism locks again immediately and from the open position when the push buttons, pull handles, push handles or twist handles are pressed again by the electrically operated mechanism smus is transferred to its closed position.
    Cfi7l2 69l A2
    CH 69 'As Pî 9.s
    CH 712 691 A2
    CH 712 691 A2
    CH 712 691 A2
    CW '« 691
    A5
    CH 712 691 A2
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    同族专利:
    公开号 | 公开日
    WO2018011663A1|2018-01-18|
    CH712690A2|2018-01-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN112357306A|2020-11-24|2021-02-12|魏巍|Quick-opening type anti-spilling fast food packaging box for food packaging|GB8710286D0|1987-04-30|1987-06-03|Mckechnie Consumer Prod|Containers|
    US20110215097A1|2010-03-08|2011-09-08|Archie Jr Willard Nelson|Dual compartment sandwich container and method of making same|
    DE102013021361B4|2013-12-04|2017-06-29|Carl Freudenberg Kg|Closure, Behätter and its use|
    DE202013010997U1|2013-12-04|2014-01-15|Jelenia Plast Sp. Z.O.O.|folding containers|
    CH709678A2|2014-05-21|2015-11-30|Fabian Graf|Lunchbox for storing, transporting and cooking of food.|CN109911393A|2019-01-29|2019-06-21|苏德祥|A kind of environmental friendly packaging box|
    法律状态:
    2019-12-13| AZW| Rejection (application)|
    优先权:
    申请号 | 申请日 | 专利标题
    CH9102016|2016-07-15|
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