WO1994022645A1 - Dispositif tranchant comportant un oscillateur piezoelectrique - Google Patents

Dispositif tranchant comportant un oscillateur piezoelectrique Download PDF

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Publication number
WO1994022645A1
WO1994022645A1 PCT/DE1994/000259 DE9400259W WO9422645A1 WO 1994022645 A1 WO1994022645 A1 WO 1994022645A1 DE 9400259 W DE9400259 W DE 9400259W WO 9422645 A1 WO9422645 A1 WO 9422645A1
Authority
WO
WIPO (PCT)
Prior art keywords
knife
cutting device
cutting
oscillator
piezoelectric oscillator
Prior art date
Application number
PCT/DE1994/000259
Other languages
German (de)
English (en)
Inventor
Klaus Höfer
Helge G. Steckmann
Original Assignee
Rowenta-Werke Gmbh
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 Rowenta-Werke Gmbh filed Critical Rowenta-Werke Gmbh
Publication of WO1994022645A1 publication Critical patent/WO1994022645A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B3/00—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B7/00—Hand knives with reciprocating motor-driven blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/086—Means for treating work or cutting member to facilitate cutting by vibrating, e.g. ultrasonically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/006—Cutting members therefor the cutting blade having a special shape, e.g. a special outline, serrations

Definitions

  • the invention relates to a cutting device for an electrical household appliance, in particular an electrically operated hand knife or an electric cutting machine for food, such as. B. Bread, meat, cheese or the like
  • Slicers are equipped with a circular knife, which is driven by a motor arranged in the housing.
  • the speed of the knife can be regulated according to the food to be cut (DE-AS 23 38 523).
  • Electrically driven knives with blades that oscillate in the axial direction are also known.
  • the inventive arrangement of a piezo oscillator which preferably works in the ultrasound range, causes the knife to vibrate perpendicular to the plane of the cut, whereby the friction between the material to be cut and the knife flanks is almost eliminated.
  • the coupling of the piezo oscillator and the geometric shape of the knife are designed so that the vibrations are distributed evenly over the knife flanks involved in the cutting process.
  • the knife is only slightly warmed when slicing and even wafer-thin meat and cheese cuts can be sliced without the slice thickness becoming uneven or the slices fraying.
  • one end of the knife is advantageously angled almost at right angles.
  • the bending radius and the knife material are adapted to the frequency of the piezo oscillator, which causes the knife to vibrate optimally in its cutting area.
  • the knife can also advantageously be set into a rotary or oscillating cutting movement by means of a known drive.
  • An embodiment of the invention is shown in the drawings and is described in more detail below. Show it :
  • Figure 1 The cutting device according to the invention in side view
  • FIG. 2 shows a top view according to FIG. 1 ;
  • Figure 3 shows another embodiment in side view
  • FIG. 4 shows a top view according to FIG. 3.
  • the cutting device shown in FIGS. 1 and 2 consists of a knife 2 with a piezo oscillator 1 attached to it.
  • the knife 2 has the shape of a circular segment and the piezo oscillator 1 is fastened in the center of the circle of the knife 2 by means of a screw connection 5.
  • the coupling is designed so that the knife 2 swings perpendicular to the plane of the cut and the vibrations are evenly distributed over the knife flanks 3, 4 involved in the cutting process.
  • FIGS. 3 and 4 show a further embodiment, the knife 2 having the shape of a conventional knife.
  • the knife 2 is angled at almost one right angle and the piezo oscillator 1 is arranged on the angled section 6 of the knife 2, the bending radius R and the knife material being adapted to the frequency of the piezo oscillator 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Knives (AREA)
  • Food-Manufacturing Devices (AREA)

Abstract

L'invention concerne un dispositif tranchant pour un appareil électroménager, notamment une trancheuse électrique pour découper des aliments tels que du pain, de la viande, du fromage ou analogue. Ce dispositif tranchant se caractérise en ce qu'un oscillateur piézo-électrique (1) coopère avec un couteau (2). Sous l'action de l'oscillateur piézo-électrique, ledit couteau (2) oscille perpendiculairement au plan de coupe.
PCT/DE1994/000259 1993-04-02 1994-03-04 Dispositif tranchant comportant un oscillateur piezoelectrique WO1994022645A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4310832.6 1993-04-02
DE19934310832 DE4310832C2 (de) 1993-04-02 1993-04-02 Schneidvorrichtung

Publications (1)

Publication Number Publication Date
WO1994022645A1 true WO1994022645A1 (fr) 1994-10-13

Family

ID=6484568

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1994/000259 WO1994022645A1 (fr) 1993-04-02 1994-03-04 Dispositif tranchant comportant un oscillateur piezoelectrique

Country Status (2)

Country Link
DE (1) DE4310832C2 (fr)
WO (1) WO1994022645A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1935592A1 (fr) 2006-12-19 2008-06-25 Dr. Wolf & Partner GmbH Ingenieurbüro für Lebensmitteltechnik Dispositif de coupe de produits alimentaires par ultrason et outils de coupe à ultrasons

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19506333C2 (de) * 1995-03-14 2001-09-13 Joerg Arnold Vibrations- und schlagunterstütztes Messer
DE19537826C1 (de) * 1995-10-11 1997-02-27 Wolf Und Partner Ingenieurbuer Ultraschallerregtes Schneidsystem, insbesondere zum Schneiden von Lebensmitteln
DE29719746U1 (de) * 1997-11-07 1999-03-18 Kln Ultraschall Gmbh Sonotrode für Ultraschall-Bearbeitungsmaschinen mit Halterung zur auswechselbaren Aufnahme von Bearbeitungswerkzeugen
DE10337272A1 (de) * 2003-08-13 2005-03-10 Alpma Alpenland Masch Schneidvorrichtung
DE102011101524A1 (de) * 2011-05-13 2012-11-15 Westfälische Hochschule Gelsenkirchen Bocholt Recklinghausen Skalpell
DE102011118208A1 (de) 2011-11-11 2013-05-16 Artech Ultrasonic Systems Ag Ultraschall-Schneidevorrichtung
US20140345148A1 (en) * 2013-05-21 2014-11-27 Black & Decker Inc. Cutting Blade For Use With Oscillating Power Tool
DE102017112178A1 (de) * 2017-06-02 2018-12-06 Tvi Entwicklung Und Produktion Gmbh Schneidvorrichtung sowie Schneidverfahren

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1053151B (de) * 1954-02-27 1959-03-19 Paul E Kempkes Vorrichtung zum Schneiden von weichem, faserhaltigem Material, insbesondere von Nahrungsmitteln, Papier u. dgl.
US2990616A (en) * 1955-03-08 1961-07-04 Cavitron Corp Ultrasonic cutting tool
GB941463A (en) * 1960-08-17 1963-11-13 Landers Frary & Clark Improvements in knives
US3664021A (en) * 1969-10-30 1972-05-23 Vernon D Beeler Knife
US3793723A (en) * 1971-12-03 1974-02-26 Ultrasonic Systems Ultrasonic replaceable shaving head and razor
DE2625636A1 (de) * 1976-06-08 1977-12-22 Fraas Alfred Holz Ing Grad Verfahren zum spanlosen schneiden fester werkstoffe
GB2219245A (en) * 1988-06-03 1989-12-06 Rawson Francis F H Ultrasonic cutting
DE3902109A1 (de) * 1989-01-25 1990-07-26 Franz Jakoubek Schneidinstrument, insbesondere skalpell
EP0481312A2 (fr) * 1990-10-19 1992-04-22 Societe Des Produits Nestle S.A. Dispositif de découpe
EP0540496A1 (fr) * 1991-10-30 1993-05-05 GFM Gesellschaft für Fertigungstechnik und Maschinenbau Aktiengesellschaft Méthode et appareil pour le découpage de produits tridimensionnels dans bloc en matière avec larges pores
EP0584670A1 (fr) * 1992-08-28 1994-03-02 Societe Des Produits Nestle S.A. Dispositif de coupe ultrasonique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4596171A (en) * 1983-10-19 1986-06-24 Gerber Garment Technology, Inc. Method and apparatus for ultrasonically cutting sheet material
DE3529686A1 (de) * 1985-08-20 1987-02-26 Fein C & E Schneidvorrichtung zum schneiden von elastischen materialien

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1053151B (de) * 1954-02-27 1959-03-19 Paul E Kempkes Vorrichtung zum Schneiden von weichem, faserhaltigem Material, insbesondere von Nahrungsmitteln, Papier u. dgl.
US2990616A (en) * 1955-03-08 1961-07-04 Cavitron Corp Ultrasonic cutting tool
GB941463A (en) * 1960-08-17 1963-11-13 Landers Frary & Clark Improvements in knives
US3664021A (en) * 1969-10-30 1972-05-23 Vernon D Beeler Knife
US3793723A (en) * 1971-12-03 1974-02-26 Ultrasonic Systems Ultrasonic replaceable shaving head and razor
DE2625636A1 (de) * 1976-06-08 1977-12-22 Fraas Alfred Holz Ing Grad Verfahren zum spanlosen schneiden fester werkstoffe
GB2219245A (en) * 1988-06-03 1989-12-06 Rawson Francis F H Ultrasonic cutting
DE3902109A1 (de) * 1989-01-25 1990-07-26 Franz Jakoubek Schneidinstrument, insbesondere skalpell
EP0481312A2 (fr) * 1990-10-19 1992-04-22 Societe Des Produits Nestle S.A. Dispositif de découpe
EP0540496A1 (fr) * 1991-10-30 1993-05-05 GFM Gesellschaft für Fertigungstechnik und Maschinenbau Aktiengesellschaft Méthode et appareil pour le découpage de produits tridimensionnels dans bloc en matière avec larges pores
EP0584670A1 (fr) * 1992-08-28 1994-03-02 Societe Des Produits Nestle S.A. Dispositif de coupe ultrasonique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1935592A1 (fr) 2006-12-19 2008-06-25 Dr. Wolf & Partner GmbH Ingenieurbüro für Lebensmitteltechnik Dispositif de coupe de produits alimentaires par ultrason et outils de coupe à ultrasons
DE102006059940A1 (de) 2006-12-19 2008-07-10 Dr. Wolf & Partner Ingenieurbüro Für Lebensmitteltechnik Gmbh Einrichtung zum Schneiden von Lebensmitteln mit Ultraschall und ultraschallerregte Schneidewerkzeuge

Also Published As

Publication number Publication date
DE4310832A1 (de) 1994-10-06
DE4310832C2 (de) 1995-07-13

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