EP2371758B1 - Spiralförmiger Körper eines Korkenziehers - Google Patents

Spiralförmiger Körper eines Korkenziehers Download PDF

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Publication number
EP2371758B1
EP2371758B1 EP11155690.8A EP11155690A EP2371758B1 EP 2371758 B1 EP2371758 B1 EP 2371758B1 EP 11155690 A EP11155690 A EP 11155690A EP 2371758 B1 EP2371758 B1 EP 2371758B1
Authority
EP
European Patent Office
Prior art keywords
tip
wire
prominences
core
tip according
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.)
Active
Application number
EP11155690.8A
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English (en)
French (fr)
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EP2371758A1 (de
Inventor
Walter Zanatta
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.)
Zanatta Srl
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Zanatta Srl
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Publication date
Application filed by Zanatta Srl filed Critical Zanatta Srl
Publication of EP2371758A1 publication Critical patent/EP2371758A1/de
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Publication of EP2371758B1 publication Critical patent/EP2371758B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B7/00—Hand- or power-operated devices for opening closed containers
    • B67B7/02—Hand- or power-operated devices for opening closed containers for removing stoppers
    • B67B7/04—Cork-screws

Definitions

  • the present invention relates to a corkscrew with perforating tip according to the preamble of claim 1 and as known from FR 1201854 .
  • the cork is unscrewed by holding the tip still with one hand and rotating the cork with the other, or vice versa.
  • corks in synthetic material are widely used today, in general plastic polymers or in silicon.
  • the intrinsic properties of the synthetic material make screwing of the tip particularly difficult.
  • the synthetic material is usually smoother and less absorbent than the cork, so that even unscrewing a synthetic cork from the corkscrew is sometimes difficult, in that the cork is difficult to grip.
  • the purpose of the present invention is to make a corkscrew with a tip which overcomes the drawbacks spoken of.
  • a corkscrew comprises a grip and a perforating tip 1, connected to the grip to lend translatory and rotatory movement.
  • the tip 1 extends mainly along an advancement axis Z and is composed of a wire 2 wound around said axis Z, in a helical pattern.
  • the helical pattern of the tip has a constant pitch.
  • the pitch is variable along the advancement axis Z.
  • the wire 2 extends from a sharpened front end 4 to a rear end 6 opposite the front end along the Z axis, usually flattened, to facilitate the connection of the tip 1 to the body of the corkscrew (not shown).
  • the wire 2 comprises a core 8 and at least one helical prominence 10, projecting from the surface of the core 8.
  • the free end 10' of the prominence 10 is rounded, that it has no sharp edges.
  • the prominence need not have a pointed or sharp free end, since it has been discovered that the force needed to cut the material the cork is made of makes its insertion/unscrewing from the perforating tip less easy.
  • the wire 2 comprises a plurality of prominences 10, having the same helical pattern as the wire, that is with an identical pitch, completely surrounding the core 8, angularly equidistant ( figures 1, 4 and 7 ) .
  • the prominences are continuous along the axial unwinding of the tip 1, that is continuous from the front end 4 to the rear end 6 ( figures 1 and 2 ).
  • the prominences 10 occupy only an angular portion of the outer surface of the core 8, e.g. only half of the surface, such as that which defines the outer surface of the helical surface in relation to the centre line ( figures 2 and 5 , 3 and 6 ).
  • the prominences 10 are interrupted in their axial unwinding along the advancement axis Z ( figure 3 ).
  • adjacent prominences 10 identify between them at least one groove 12 of sufficient depth to at least partially avoid contact of the core 8 with the cork.
  • this variation foresees that the prominences 10 are sufficiently high, or that the relative groove 12 is deep enough, to limit the contact of the cork with the core.
  • connection surface 14 between adjacent prominences 10 is substantially concave.
  • the wire 2 is one-pieced, for example in a metallic material, such as steel, preferably covered in a non-stick polymer, such as PTFE.
  • a metallic material such as steel
  • a non-stick polymer such as PTFE
  • a straight wire is placed in rotation along a longitudinal rotation axis, for example resting on a support cylinder.
  • a shaping roller is placed alongside the straight wire, parallel to it, having one or more longitudinal ribs, continuous or interrupted depending on the desired tip embodiment.
  • the shaping roller plastically bends the straight wire, so as to form the longitudinal prominences on it.
  • the wire material is preferably plastically re-distributed to form the prominences and corresponding grooves, as for example shown in the embodiment illustrated in figure 7 in which the dotted perimeter 16 represents the transversal section of the wire before said bending and in which the section shown by the solid line is that of the finished perforating tip.
  • the wire provided with longitudinal prominences is then cut according to the length of the tip to be obtained, the sharpened end is formed on one side and the flattened end on the other, and lastly wound into a spiral shape, forming the perforating tip.
  • the perforating tip and corkscrew according to the present invention overcomes the drawbacks described.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Opening Bottles Or Cans (AREA)
  • Jellies, Jams, And Syrups (AREA)

Claims (14)

  1. Spindel (1) für einen Korkenzieher, umfassend einen Draht (2), welcher spiralförmig um eine Vorrückachse (Z) gewunden ist und einen inneren Kern (8) umfasst, wobei der Draht auf der Oberfläche mit mindestens einer von der Oberfläche des Kerns (8) vorstehenden Erhebung (10) versehen ist, welche der Windung des Drahts folgt;
    wobei die Spindel (1) dadurch gekennzeichnet ist, dass das freie Ende (10') der Erhebung (10) abgerundet ist.
  2. Spindel nach Anspruch 1, wobei der Draht in einem schraubenförmigen Muster gewunden ist und die Erhebung(10) ein schraubenförmiges Muster hat.
  3. Spindel nach Anspruch 1 oder 2, wobei die Erhebung (10) entlang der Vorrückachse (Z) durchgehend ist.
  4. Spindel nach einem der vorhergehenden Ansprüche, umfassend eine Vielzahl von Erhebungen (10), die um den Kern (8) herum gleiche Winkelabstände haben.
  5. Spindel nach Anspruch 4, wobei die Erhebungen den Querschnitt des Kerns (8) vollständig umgeben.
  6. Spindel nach Anspruch 4 oder 5, wobei benachbarte Erhebungen (10) zwischen einander mindestens eine Nut (12) ausbilden, deren Tiefe ausreicht, um Kontakt mit des Kerns (8) mit einem Korken zumindest teilweise zu verhindern.
  7. Spindel nach einem der Ansprüche 4 bis 6, wobei die Verbindungsfläche (14) zwischen benachbarten Erhebungen (10) im Wesentlichen konkav ist.
  8. Spindel nach einem der Ansprüche 1 bis 4, wobei die Erhebungen von nur einer Hälfte des Querschnitts des Kerns vorstehen.
  9. Spindel nach einem der vorhergehenden Ansprüche, wobei der Draht aus einem einzigen Stück Stahl besteht.
  10. Spindel nach einem der vorhergehenden Ansprüche, wobei der Draht mit einem nicht haftenden Polymer, wie beispielsweise PTFE, überzogen ist.
  11. Spindel nach einem der vorhergehenden Ansprüche, wobei die Spindel ein angespitztes vorderes Ende (4) und ein abgeflachtes hinteres Ende (6) hat.
  12. Korkenzieher umfassend einen Griffabschnitt und eine Spindel (1) nach einem der vorhergehenden Ansprüche, welche an dem Griffabschnitt befestigt ist.
  13. Verfahren zum Herstellen einer Spindel für einen Korkenzieher nach einem der Ansprüche 1 bis 12, umfassend die folgenden Schritte:
    - Anordnen eines geraden Drahts in Rotation entlang einer in Längsrichtung verlaufenden Rotationsachse;
    - Anordnen einer mit mindestens einer Längsrippe ausgestatteten Formwalze neben dem geraden Draht;
    - dauerhaftes Biegen des geraden Drahts, wodurch die Erhebungen in Längsrichtung darauf erzeugt werden;
    - Wickeln des Drahts in Spiralen, wodurch die Spindel erzeugt wird.
  14. Verfahren nach Anspruch 13, wobei der Schritt des Biegens ein plastisches Biegen des geraden Drahts umfasst.
EP11155690.8A 2010-03-30 2011-02-23 Spiralförmiger Körper eines Korkenziehers Active EP2371758B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBS2010A000062A IT1399106B1 (it) 2010-03-30 2010-03-30 Cavatappi con punta di foratura

Publications (2)

Publication Number Publication Date
EP2371758A1 EP2371758A1 (de) 2011-10-05
EP2371758B1 true EP2371758B1 (de) 2016-04-13

Family

ID=43064381

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11155690.8A Active EP2371758B1 (de) 2010-03-30 2011-02-23 Spiralförmiger Körper eines Korkenziehers

Country Status (3)

Country Link
EP (1) EP2371758B1 (de)
ES (1) ES2582037T3 (de)
IT (1) IT1399106B1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH369377A (de) * 1957-08-29 1963-05-15 Aeschlimann Max Deckelverschluss-Öffner
FR1201854A (fr) * 1957-08-29 1960-01-06 Tire-bouchon
US4429444A (en) * 1979-03-05 1984-02-07 Hallen Company Cork extractor

Also Published As

Publication number Publication date
ES2582037T3 (es) 2016-09-08
ITBS20100062A1 (it) 2011-10-01
EP2371758A1 (de) 2011-10-05
IT1399106B1 (it) 2013-04-05

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