EP0635454B1 - Vorrichtung gegen Nach-Tropfen - Google Patents

Vorrichtung gegen Nach-Tropfen Download PDF

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Publication number
EP0635454B1
EP0635454B1 EP19940202100 EP94202100A EP0635454B1 EP 0635454 B1 EP0635454 B1 EP 0635454B1 EP 19940202100 EP19940202100 EP 19940202100 EP 94202100 A EP94202100 A EP 94202100A EP 0635454 B1 EP0635454 B1 EP 0635454B1
Authority
EP
European Patent Office
Prior art keywords
outflow
interruption
outflow path
spray nozzle
path
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19940202100
Other languages
English (en)
French (fr)
Other versions
EP0635454A1 (de
Inventor
Petrus Josephus Carolus Piscaer
Emil Herman Rusche
Roelof Versluis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Douwe Egberts BV
Original Assignee
Sara Lee DE NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sara Lee DE NV filed Critical Sara Lee DE NV
Publication of EP0635454A1 publication Critical patent/EP0635454A1/de
Application granted granted Critical
Publication of EP0635454B1 publication Critical patent/EP0635454B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
    • B67D1/1256—Anti-dripping devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/16—Devices for collecting spilled beverages

Definitions

  • This invention relates to an anti-(after)drip device at the outflow pipe of a dosing device, in particular a beverage machine.
  • German 'Offenlegungsschrift' no. 2064456 discloses a dosing device where the outflow pipe can be closed by a valve which can be controlled by a outflow gutter tiltable about a horizontal axis and having a closed and an open outflow end. In one tilted end position of the outflow gutter, where the gutter slants downwards in the direction of the closed end, the valve is kept in closed position in the outflow pipe through spring bias. Dripping liquid, if any, of a previous dosing operation falls into the outflow gutter and is collected in the closed end thereof.
  • the valve By tilting the open outflow end of the gutter downwards, the valve is moved against the spring bias into the open position and a particular amount of liquid flows out through the outflow gutter into a cup or similar receptacle being held in readiness. Upon completion of the dosing operation, the valve is closed again and dripping residual liquid is collected in the closed end of the outflow gutter again.
  • the object of the present invention is to provide a device for preventing after-drip at the outflow pipe of a dosing device, in particular after-drip onto the cup supporting position in a beverage machine, without the disadvantages of known proposals.
  • a branch is provided for a second outflow path having a direction which is different from that of the first outflow path and slants downwards, which branch can be bridged by the liquid at a relatively high flow velocity, so that the liquid flow follows the first outflow path, whereas at decreasing flow velocity the residual liquid follows the second outflow path through the branch.
  • the outflow path of the outflow pipe is interrupted in an interruption, a supply part of the first outflow path being located upstream of the interruption and an outflow part of the first outflow path being located downstream of the interruption.
  • the greater part will flow out at a relatively high velocity, so that the interruption in the first outflow path of the outflow pipe will be bridged by the flowing liquid.
  • the velocity decreases, so that residual liquid can no longer reach the part of the first outflow path downstream of the interruption and can be diverted within the device by way of the second outflow path to a drip-tray or like collecting reservoir.
  • the device according to the invention is eminently suitable for use with a beverage machine of compact design, where it is advantageous if the discharge pipe for conveying liquid from a preparation unit or a supply container to the point where a cup or other receptacle is to be arranged, can extend at least substantially horizontally, ending in a 90° angled outflow extending down towards the cup supporting surface.
  • the drop of the outflow pipe is slight and thus the liquid velocity is low at the end of a dosing operation.
  • protracted after-drip can arise and there is a substantial chance of contamination of the cup and/or the cup supporting surface when a cup is being removed prematurely.
  • the device according to the invention will limit such prolonged after-drip to a minimum.
  • a coupling sleeve can be arranged which encloses a collecting chamber with a discharge channel for residual liquid.
  • Fig. 1 diagrammatically shows a longitudinal elevation of the device, reference character 1 indicating the slanting terminal outflow path of a discharge pipe of a beverage machine or like dosing device (not shown).
  • the first outflow path 1 comprises a supply part 2 located upstream of an interruption 3 and an outflow part 4 with an outflow opening 5, located downstream of the interruption 3.
  • the upstream supply part 2 has an inner diameter a and the downstream outflow part 4 has an inner diameter b , with b being preferably greater than a .
  • the supply part 2 ends at the interruption 3 in a spray nozzle 6 which, in the present exemplary embodiment, has an inner diameter a '.
  • An upper side 7 of the spray nozzle 6 is preferably extended in downstream direction relative to the lower side 8 of the spray nozzle 6. Accordingly, in this embodiment the spray nozzle 6 comprises a bevelled outlet end 9 which slants downwards in upstream direction.
  • the upstream inlet end 10 of the discharge part 4 forms part of an inlet nozzle 11 which has an inner diameter b ' which is greater than a '.
  • the inlet nozzle 11 has a non-bevelled inlet end 10, i.e. an edge 12 of the input nozzle 11 is located in a plane at least substantially perpendicular to the longitudinal direction of the supply part 2.
  • the device further comprises at least one second outflow path 13 originating in the interruption 3.
  • the second outflow path 13 is directed obliquely downwards, but it may also be designed so as to extend perpendicularly downwards.
  • the second outflow path 13 will preferably originate in a part of the interruption 3 located below the spray nozzle 6.
  • the residual liquid can be discharged via the second outflow path 13.
  • the device in this case comprises a collecting chamber 16 and a discharge channel 17.
  • the residual liquid is received, typically in the form of drops, in the collecting chamber 16 which is located in a coupling sleeve 18 which embraces the outflow path 1 at the location of the interruption 3. Then residual liquid will be discharged to a suitable location by way of discharge channel 17.
  • the device further comprises at least one aeration channel 19 originating at an upper side of the interruption 3.
  • the aeration channel 19 is located downstream of the upper side 7 of the spray nozzle 6, more particularly in the prolongation of the discharge channel 17. It is also possible, however, to design the aeration channel 19 so as to originate in the interruption 3 at a point further upstream or downstream.
  • the advantage of the aeration channel 19 is that the residual liquid referred to can be discharged particularly easily via the second outflow path 13 without a part of this residual liquid yet being discharged through the outflow opening 5 in the form of drops.
  • the time lapse in which the after-drip from the outflow opening 5 ends completely upon closure of the liquid supply to the supply part 2 will be further shortened by virtue of the aeration channel 19.
  • the reaction time in which the delivery of liquid from the outflow opening 5 can be completed entirely is therefore improved.
  • FIG. 2 shows an alternative embodiment of a device according to the invention. Corresponding parts in Figs. 1 and 2 are indicated by the same reference characters.
  • the first outflow path 1 is of at least substantially horizontal design. More particularly, the supply part 2 and the upstream part 20 of the outflow part 4 extend horizontally, the downstream part 21 of the outflow part 4 bending downwards through an angle of approximately 90°.
  • the second outflow path 13, in particular the discharge channel 17, extends at least substantially vertically.
  • the device of Fig. 2 has as an advantage that it can be made of particularly compact design.
  • the inner diameter a ' of the spray nozzle 6 is preferably between 3.5 mm (millimeters) and 5 mm for both embodiments.
  • the inner diameter b ' of the inlet nozzle 11 is preferably between 6 mm and 15 mm.
  • the distance d between the upper side 7 of the spray nozzle 6 and the inlet end 9 of the inlet nozzle 11 will preferably be between 0.5 mm and 2 mm.
  • the inner diameter of the aeration channel 19 is not critical and may for instance be chosen to be 2 mm. However, other diameters are also possible. Similarly, the inner diameter of the discharge channel 17 is not critical and may for instance be chosen to be of the order of magnitude of the inner diameter a ' or b '.
  • discharge channel 17 and the aeration channel 19 are arranged in the coupling sleeve 18. It will be clear, however, that supply part 2, outflow part 4, spray nozzle 6, inlet nozzle 11, discharge channel 17 and aeration channel 19 may also be made in one piece.

Landscapes

  • Devices For Dispensing Beverages (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)

Claims (11)

  1. Vorrichtung gegen das (Nach-) Tropfen am Ausströmrohr einer Dosiervorrichtung, insbesondere einer Getränkemaschine, dadurch gekennzeichnet, daß in einem ersten Ausströmweg (1) des Ausströmrohres eine Verzweigung (3, 16) in einen zweiten Ausströmweg (13) vorgesehen ist, der eine Richtung hat, die von der des ersten Ausströmweges unterschiedlich ist, und der nach unten geneigt verläuft, wobei die Verzweigung von der Flüssigkeit bei einer relativ hohen Strömungsgeschwindigkeit überströmt werden kann, so daß der Flüssigkeitsstrom dem ersten Ausströmweg (1) folgt, während bei abnehmender Strömungsgeschwindigkeit die Restflüssigkeit dem zweiten Ausströmweg (13) durch die Verzweigung (3, 16) folgt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Ausströmweg (1) des Auslaßrohres an einer ersten Unterbrechung (3) unterbrochen ist, wobei sich ein Zuleitungsteil (2) des ersten Ausströmweges (1) stromaufwärts der Unterbrechung (3) befindet und sich ein Ausströmteil (4) des ersten Ausströmweges (1) stromabwärts der Unterbrechung (3) befindet.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Zuleitungsteil (2) stromabwärts in einer Sprühdüse (6) endet und der Ausströmteil (4) stromaufwärts mit einem Einlaßende (10) beginnt, das einen größeren Innendurchmesser als die Sprühdüse (6) hat.
  4. Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß eine Kopplungshülse (18) am Ort der Unterbrechung (3) in dem ersten Ausströmweg (1) angeordnet ist, wobei die Kopplungshülse (18) eine Sammelkammer (16) mit einem Auslaßkanal (17) für die Restflüssigkeit einschließt.
  5. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß das Einlaßende (10) des Ausströmteiles (4) einen Teil einer Einlaßdüse (11) bildet.
  6. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Vorrichtung weiter einen Lüftungskanal (19) aufweist, der seinen Ursprung in der Unterbrechung (3) hat.
  7. Vorrichtung nach den Ansprüchen 3 und 6, dadurch gekennzeichnet, daß der Lüftungskanal (19) seinen Ursprung in einem Teil der Unterbrechung (3) hat, die sich oberhalb der Sprühdüse (6) befindet.
  8. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Sprühdüse (6) ein abgeschrägtes Auslaßende (9) aufweist, das in stromaufwärtiger Richtung nach unten geneigt verläuft.
  9. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Innendurchmesser der Sprühdüse (6) zwischen 3.5 mm und 5 mm liegt und der Innendurchmesser des Einlaßendes (10) zwischen 6 mm und 15 mm liegt.
  10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß der Abstand zwischen einer oberen Seite (7) der Sprühdüse (6) und dem Einlaßende (9) des Ausströmteiles (4) zwischen 0.5 mm und 2 mm liegt.
  11. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der zweite Ausströmweg seinen Ursprung in einem Teil der Unterbrechung (3) hat, der sich unterhalb der Sprühdüse (6) befindet.
EP19940202100 1993-07-19 1994-07-18 Vorrichtung gegen Nach-Tropfen Expired - Lifetime EP0635454B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9301263A NL9301263A (nl) 1993-07-19 1993-07-19 Anti-(na) druppelinrichting.
NL9301263 1993-07-19

Publications (2)

Publication Number Publication Date
EP0635454A1 EP0635454A1 (de) 1995-01-25
EP0635454B1 true EP0635454B1 (de) 1997-03-26

Family

ID=19862673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940202100 Expired - Lifetime EP0635454B1 (de) 1993-07-19 1994-07-18 Vorrichtung gegen Nach-Tropfen

Country Status (5)

Country Link
EP (1) EP0635454B1 (de)
DE (1) DE69402263T2 (de)
DK (1) DK0635454T3 (de)
ES (1) ES2102765T3 (de)
NL (1) NL9301263A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1262463B1 (de) * 2001-06-02 2004-10-27 Cognis Iberia, S.L. Wässrige Rohstoffzusammensetzungen für keramische Werkstoffe
GB2448703A (en) * 2007-04-24 2008-10-29 Imi Cornelius Self-draining dispenser nozzle
CN104771075B (zh) * 2015-03-17 2017-09-26 宁波全景电器技术有限公司 咖啡机的防滴漏结构及应用有该防滴漏结构的咖啡机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE589168C (de) * 1933-12-05 Max Feig Ausgusstuelle fuer Schankgefaesse
DE2064456A1 (de) * 1970-12-30 1972-07-20 Siemens Elektrogeraete Gmbh Elektrische Kaffeemaschine
NL8203763A (nl) * 1982-09-29 1984-04-16 Stork Bepak Bv Vulventiel voor een doseer- of vulinrichting.
DE3602665A1 (de) * 1986-01-29 1987-08-06 Wmf Wuerttemberg Metallwaren Kaffeemaschine
CH673084A5 (de) * 1987-11-18 1990-02-15 Cafina Ag

Also Published As

Publication number Publication date
ES2102765T3 (es) 1997-08-01
DE69402263T2 (de) 1997-08-28
NL9301263A (nl) 1995-02-16
DK0635454T3 (da) 1997-10-13
DE69402263D1 (de) 1997-04-30
EP0635454A1 (de) 1995-01-25

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