Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
  • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
  • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
• • A—HUMAN NECESSITIES
  • A45—HAND OR TRAVELLING ARTICLES
  • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
  • A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
  • A45C11/20—Lunch or picnic boxes or the like
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
  • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
  • B65D81/245—Internal membrane, floating cover or the like isolating the contents from the ambient atmosphere

Definitions

• the invention relates to an airtight sealable Frisc holding container for organic substances, especially food, which has the features of the preamble of claim 1.
• the lid is provided with a valve through which air can be sucked out of the container by means of a hand pump.
• the object of the invention is to create a container known to this " " compared to improved fresh-keeping containers. This object is achieved by a container having the feature of claim 1.
• REPLACEMENT LEAF the volume to be kept fresh is limited. This reduces the effort for sucking out the air and maintaining the negative pressure. In addition, the winch of the container does not have to withstand a relatively high pressure difference. Another advantage is that the cleaning of the container is simplified by the film, since this can be easily replaced.
• the upper part of the container is designed as a hood.
• the support surface is easily accessible, so that both the introduction of the goods into the container and the removal do not pose any difficulties.
• the film has in the deployed state, preferably an at least approximately matched to the 'hood dome shape.
• the film a adjoins a self-contained sealing strip which, when the container is closed, is clamped between a circumferential contact surface of the lower part for the edge surfaces of the upper part and this rim surface.
• An additional seal between the upper part and lower part is therefore not necessary. Since the foil has to be replaced from time to time, this also ensures that a fully functional seal is always used.
• the air pumping device is driven by an electric motor. In this way, in conjunction with a pressure sensor, it can be ensured in a simple manner that the air is always sucked out of the usable space to the extent necessary for keeping it fresh, regardless of how large the volume of the usable space is.
• the air pumping device is preferably arranged below the contact surface, which is expediently closed by a se ⁇ e, tightly connected to the side wall of the lower plate is formed.
• a particle separator is preferably arranged between the suction opening of the channel through which the air is extracted and the air pumping device.
• the air pumping device has a preferably monostable 2-way valve which, in its one switching state, opens the first suction line leading from the pump of the air pumping device to the space delimited by the support surface and the film, and that from the pump to the of the film and the hood limited space leading second suction line closes and in the other switching position the first suction line closed and the second suction line keeps open.
• a control device for the motor driving the pump and an electromagnet actuating the valve is connected in a preferred embodiment to a switch of a pressure sensor which activates the pump when the pressure in the working space is too high and switches it off when the negative pressure in the working room has reached the intended value.
• a switch of a pressure sensor which activates the pump when the pressure in the working space is too high and switches it off when the negative pressure in the working room has reached the intended value.
• REPLACEMENT LEAF Switch is provided, which can be connected in series with the switch of the pressure sensor and whose switching state depends on whether the container is open or properly closed.
• Fig. 3 is a circuit diagram of the embodiment with a
• An airtight sealable fresh storage container for organic materials, in particular foodstuffs, with a cuboid-like shape in the exemplary embodiment, as shown in FIG. 1, has a lower part 1 and a cover 2 as upper part, both of which are dimensionally stable and consist of a plastic.
• a clear plastic can also be used for the hood 2.
• the lower part 1 has a flat, rectangular base plate 3, which is detachably connected to the vertical side walls of the lower part 1. Slightly below the edge surface 4 of the side walls lying in a plane parallel to the base plate 3, a flat plate is formed on it, the plate parallel to the base plate 3, the upper side of which forms the support surface 5 for the goods to be freshly kept.
• the side walls of the hood 2 the shape of which differs from that of a cuboid in the exemplary embodiment only by a bevel at the transition from the upper side to the front, are flush with the side winds of the lower part 1 when the hood with the edge surface of its side walls on the edge surface 4 of the Soica ⁇ de of the lower part 1 rests.
• Two hinges 6 connect the lower part 1 and the hood 2 at the rear, which is why the hood 2 only has to be folded backwards to open the container and to be folded forward to close. The user therefore need not pay attention that the hood 2 is correctly positioned when it is closed. The correct positioning is ensured by the hinges 6.
• a lock 7 is provided in the middle, the closing element of which overlaps a nose formed on the hood 2 during the closing process and then pulls the front wall of the hood 2 against the rim of the front wall of the lower part 1. All edge surfaces of the hood 2 are pressed against the edge surface 4 of the lower part 1 with sufficient force.
• the side walls of the hood 2 have one along its lower edge. bead-like widening, as a result of which the edge surface formed here is adapted to the width of the edge surface 4.
• This widened edge surface of the side walls of the hood 2 is provided with a circumferential groove which is open towards the edge surface 4 and into which a sealing strip 8 can be inserted.
• the dimensions of the groove and the sealing strand 8 are chosen so that when the hood 2 is closed, the sealing strip 8 with pressure is applied to both the wall of the groove and the edge surface, so that when the hood 2 is closed, the container is airtight.
• the edge of an airtight film 9 is molded onto the sealing strand 8, which in the unfolded state has a shape and size adapted to the d ⁇ T hood 2.
• the sealing strand 8 lying in the groove with slight clamping need only be pulled out of this groove in order to be able to clean or replace the film 9. Accordingly, only the * sealing strip 8 of the cleaned or a new film 9 needs to be inserted into the groove in order to re-insert the film 9 into that in FIG. 1
• BRSATZB bring position shown in the hood 2.
• the usable space i.e. the space available for the goods to be kept fresh, bounded on the one hand by the support surface 5 and on the other hand by the film 9, opens into the support surface 5 an air suction duct 10.
• the pipe 11 delimiting it is on the underside of the Shaped surface 5 forming plate.
• a removable sieve 12 covers the mouth opening of the air extraction duct 10.
• a tube 13 which is arranged concentrically to it but has a larger diameter, is formed at one end onto the plate forming the bearing surface 5.
• the other end of the tube 13 pointing towards the base plate 3 is immersed in a cup-shaped collecting container 14 which is inserted from below into an opening in the base plate 3 and, if necessary, can be pulled down to empty its contents.
• a nozzle 13 'for the connection of a first suction line 15 is integrally formed on the tube 13.
• the tubes 11 and 13 therefore form a siphon-like particle separator in which particles that are not retained by the sieve 12 are separated from the extracted air. They fall into the collecting container 14.
• the first suction line 15 leads to a first connection of a monostable 2-way valve 16. From this connection, a normally open valve channel leads to a pump connection port 17. A normally closed valve channel leads from a second connection likewise to the pump connecting piece 17, which in the exemplary embodiment is connected directly to the suction piece of a pump 18 which is driven by an electric motor 19.
• the two-way valve 16 for the two valves which are provided in one or the other valve channel, has a common valve actuation rod 20, which is arranged longitudinally displaceably in the valve housing and has a valve body 21 of one valve and one Valve body 22 of the other valve carries, by means of the i.
• REPLACEMENT LEAF Change the valve channel leading to the first connection or the valve channel leading to the second connection can be closed and opened.
• the valve actuating rod 20 by means of an electromagnet 23 against the force of a return spring 24 to the right a viewing direction according to FIG. 3.
• a cylindrical magnetic flux guide body 25 arranged on the valve actuation rod 20 is then located in the interior of the electromagnet 23.
• the guide surfaces of the valve housing for the valve actuation rod 20,. det or as in the embodiment, those of the valve operating rod 20 are gebil- by longitudinal ribs', between which the valve actuator rod 20 can hi ⁇ trimrier the air along.
• the second connection of the 2-way valve 16 is connected via a second suction line 26 to the space between the film 9 and the inner surface of the hood 2 in order to lift the film 9 from the goods to be kept fresh and against it before opening the hood 2 to be able to suck the inside of the hood 2.
• an air duct leads from the second connection Air inlet opening of the 2-way valve 16, which is provided at the end of the valve housing shown on the left in FIG. 3.
• this ventilation channel is closed by a valve body 22 * which is also arranged on the valve actuating rod 20.
• the first connection is connected via an aeration channel to an air inlet opening of the 2-way valve 16, which is provided at the end of the valve housing shown on the right in FIG. 3.
• this ventilation duct there is also a valve on the ventilation
• a bulge 27 is formed on the side wall of the hood 2 shown on the left in FIG. 1 , which contains a first connecting channel 28, which opens on the one hand in the inner surface of this side wall and on the other hand in the widened edge here.
• a bead 29 which is formed on the lower part 1 and which contains a second connecting channel 30 is aligned on the bead 27. This connects with its one end when the hood 2 is closed to the first connecting channel 28 and, on the other hand, opens into the inner surface of the side wall of the lower part 1, where the second suction line 26 (not shown in FIG. 4) connects.
• a pressure sensor 31 which is attached to the underside of the plate forming the support surface 5 and, in the exemplary embodiment, has a membrane on which the pressure in the useful space acts directly.
• the pressure sensor 31 actuates a microswitch 32 in such a way that the microswitch is closed when air has to be extracted from the work space and is open when the negative pressure in the work space has the desired value.
• a microswitch 33 In series with the microswitch 32 is a microswitch 33 which is actuated by a plunger which keeps the microswitch 33 open when the tension lock 7 is open and, when the tension lock 7 is closed, keeps the microswitch 33 in the closed-closed state.
• the two microswitches 32 and 33 are connected to a control device 34, the components of which are provided on a circuit board 35 arranged below the support surface 5 in the lower part 1.
• the electrical device is also connected to the control device 34.
• REPLACEMENT BLA Motor 19 the electromagnet 23 and two arranged in the front wall d lower part 1 Sig ⁇ alclude ⁇ 36 and 37 connected which shine green or red in the activated state. Da.s' green light means that prevails in the chamber the desired vacuum, the red light whereas a fault indicating. If just in the front wall of the lower part 1, a power switch 38 is furthermore provided, by means of which the connection Zvi ⁇ rule the non-illustrated flexible power cable and the STEU er sensible 34 can be made and broken.
• the switching on of the mains switch 38 has the consequence that when the tension lock 7 is opened * the microswitch 33 changes to the "hood 2 open” switching state.
• the control device 34 switches on the electric motor 19 for a certain time and activates the electromagnet 23 for this time, so that air is sucked out of the space between the film 9 and the hood 2 and air into the space between the film 9 and the bearing surface 5 can flow out.
• the film 9 is kept in its completely "unfolded state.
• the hood 2 is opened and the goods to be kept fresh, which are, for example, bread rolls, pretzels, sausages, cakes, salad, vegetables, etc., are placed on the support surface 5
• the microswitch 33 assumes the closed position shown in Fig. 3.
• the microswitch 32 because the ambient pressure still prevails in the usable space 3 and the electric motor 19 is switched on, therefore the air is now sucked out of the useful space, the film 9 laying against the goods to be kept fresh, with air in the space between the film 9 and the hood 2 can flow in.
• the microswitch 32 opens, whereby the electric motor 19 is switched off aladmi 36, wherein it is a light emitting diode is turned on.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Food Science & Technology (AREA)
• Packages (AREA)
• Vacuum Packaging (AREA)
• Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=6454362

Family Applications (1)

Country Status (7)

Families Citing this family (34)

Family Cites Families (17)

• 1992
  • 1992-03-18 DE DE4208656A patent/DE4208656C2/de not_active Expired - Fee Related
• 1993
  • 1993-03-11 AU AU37471/93A patent/AU3747193A/en not_active Abandoned
  • 1993-03-11 CA CA002132196A patent/CA2132196A1/fr not_active Abandoned
  • 1993-03-11 EP EP93906500A patent/EP0631484B1/fr not_active Expired - Lifetime
  • 1993-03-11 WO PCT/EP1993/000557 patent/WO1993018696A1/fr not_active Ceased
  • 1993-03-11 DE DE59304683T patent/DE59304683D1/de not_active Expired - Fee Related
  • 1993-03-11 US US08/302,908 patent/US5570628A/en not_active Expired - Fee Related
  • 1993-03-11 AT AT93906500T patent/ATE145804T1/de not_active IP Right Cessation

Non-Patent Citations (1)

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