EP0930959A1 - Scissors - Google Patents

Scissors

Info

Publication number
EP0930959A1
EP0930959A1 EP98943769A EP98943769A EP0930959A1 EP 0930959 A1 EP0930959 A1 EP 0930959A1 EP 98943769 A EP98943769 A EP 98943769A EP 98943769 A EP98943769 A EP 98943769A EP 0930959 A1 EP0930959 A1 EP 0930959A1
Authority
EP
European Patent Office
Prior art keywords
scissors
basin
vibration device
scissors according
nail
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.)
Granted
Application number
EP98943769A
Other languages
German (de)
French (fr)
Other versions
EP0930959B1 (en
Inventor
Detlef Mattinger
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.)
Procter and Gamble Deutschland GmbH
Original Assignee
Wella 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 Wella GmbH filed Critical Wella GmbH
Publication of EP0930959A1 publication Critical patent/EP0930959A1/en
Application granted granted Critical
Publication of EP0930959B1 publication Critical patent/EP0930959B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B15/00—Hand-held shears with motor-driven blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B13/00—Hand shears; Scissors
    • B26B13/22—Hand shears; Scissors combined with auxiliary implements, e.g. with cigar cutter, with manicure instrument
    • B26B13/24—Hand shears; Scissors combined with auxiliary implements, e.g. with cigar cutter, with manicure instrument to aid hair cutting

Definitions

  • the invention relates to a pair of scissors with two becks connected to one another via a joint, in particular hairdressing scissors.
  • Known scissors work on the principle of two cutting edges, which move around a common, fixed pivot point.
  • the cutting edges slide on each other in such a way that they touch at one point (cutting point).
  • Thread-like clippings e.g. B. hair
  • Thread-like clippings slides depending on the opening angle, sharpness, etc. more or less long before the actual cutting point until it is cut, held and then separated. Since the clippings do not perform a defined rolling movement around their longitudinal axis with this method of cutting, only a partial cross section of the clippings is inevitably cut, the rest are virtually squeezed to torn off.
  • the invention is based on the object of cutting thread-like clippings, in particular hair, uniformly over its circumference and cross section without crushing and tearing zones.
  • At least one basin of the scissors can be set into vibration parallel to the longitudinal direction of this basin by means of an electrically operated vibration device.
  • the invention has the advantage that thread-like clippings, in particular hair, can be cut evenly over its circumference and cross-section without crushing and tearing zones.
  • the hair rolls and glides between the cutting edges when it is cut. It is cut reliably and evenly.
  • the at least one cutting edge, superimposed, leads axially oscillating motion component to this improved cutting property.
  • the vibration device contains a piezo displacement sensor, which is located between the blade and a handle-side pelvic end and which is a connection between the blade and the pelvic end.
  • the oscillating movement is determined by the frequency and the amplitude with which the piezo transducer oscillates.
  • the oscillating movement should be carried out with such a high frequency that within normal use of a pair of scissors in the cutting process, the hair rolls over its circumference at least once on the cutting edges.
  • the vibration amplitude depends on the hair size. Approx. 100 to 200 ⁇ m can be used for the amplitude (claim 9). If both cutting edges swing at the same time and out of phase with each other, half the amplitude is sufficient.
  • the piezo sensor can be operated with an ultrasound frequency (claim 8). It is integrated in at least one cutting edge. Analogous to an ultrasonic cleaning or welding sonotrode, the longitudinal shaft is transferred to the cutting edge.
  • the ultimately mechanical vibration generator can be arranged on the cutting side or straw side of the scissors. A corresponding mechanical play in the bearing point should be noted on the straw side. The latter also applies to other vibration devices on the straw (claim 5).
  • the system is controlled electrically by an ultrasonic generator, which is coupled to the electromechanical transducer via electrical connecting lines.
  • an eccentric disk surrounding the nail is provided on the nail of the joint as a vibration device, the eccentric disk is inserted into a round recess in the basin and is rotatably connected to the nail, and a Smallest motor for rotating the eccentric disc is provided around the nail (claim 3).
  • a standard connection nail is replaced by an electromechanically driven eccentric unit. The axial component of the eccentric movement leads to the desired cutting movement.
  • a small motor is sufficient as a drive for the eccentric unit and has the advantage that it does not affect the handling of the scissors.
  • the vibration device can also be designed such that the basin consists at least in regions of a magnetostrictive material which is wrapped by a rigid, stationary excitation coil (claim 4).
  • the scissor blades are applied to a base made of magnetostrictive material. Applying an electromagnetic field to the magnetostrictive material causes a change in the length of the material and ultimately an oscillation of the cutting edges to one another.
  • the excitation coils can be arranged in the stalk area of the scissors.
  • the excitation coil is connected to a generator via an electrical connecting line.
  • Nickel or a nickel alloy is suitable as material (claim 6).
  • nickel has the required magnetostrictive properties
  • nickel steel is very well suited for the manufacture of scissors.
  • the material can have a plastic coating (claim 7).
  • Figure 1 is a side view of a pair of scissors, the Becks over a
  • Nail are connected to each other in an articulated manner, and the soapy pelvic ends each have an eye, with a piezo sensor between a blade and the pelvic end being provided as the vibration device;
  • Figure 2 is a side view of a pair of scissors analogous to Figure 1, but with a vibration device which has an eccentric disk surrounding the nail and a miniature motor for rotating the eccentric disk
  • 3 shows a side view of a pair of scissors similar to FIG. 1, but with an oscillation device which has a magnetostrictive material on a stalk and a rigid, stationary excitation coil surrounding the material.
  • a basin 4 can be set into vibration parallel to the longitudinal direction 6 of the blade 7 of this basin 4 by means of an electrically operated vibration device 5 (FIG. 1).
  • the vibration device 5 contains a piezo sensor 8, which lies between the blade 7 and the joint 2.
  • the piezo sensor 8 is a connection 9 which connects the blade 7 and the handle-side basin end 10 of the basin 4 to one another.
  • the scissors 1 is designed as hairdressing scissors 11 with eyes 12.
  • An electrical line 13 supplies the piezo sensor 8 with an ultrasound frequency. During a cutting process, the vibration of the blade 7, the amplitude of which is 150 ⁇ m, is used to cut hair better.
  • an eccentric disc 15, which surrounds the nail 14 of the joint 2 is provided as the vibration device 5, which is inserted into a round recess 16 of the basin 4 and is rotatably connected to the nail 14.
  • the eccentric disc 15 rotates around the nail 14. This rotational movement is achieved by means of a miniature motor 17.
  • the entire Beck 4 carries out the vibration.
  • a magnetostrictive material 18 is provided as the vibration device 5, which is wrapped by a rigid, stationary excitation coil 19.
  • the vibration device 5 is provided on the stem 20 of the basin 4.
  • a magnetostrictive material 18 has been used only within the excitation coil 19, within a stalk region 21. Otherwise, the scissors 1 are made of conventional scissor steel 22.
  • the material 18 is a nickel alloy 23.
  • the basin 4 has a play 24 in the longitudinal direction 6 of the basin 4 on the nail 14.
  • the game 24 has an extension of 150 ⁇ m in the longitudinal direction 6 corresponding to the amplitude of the vibration of the blade 7.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Scissors And Nippers (AREA)
  • Dry Shavers And Clippers (AREA)
  • Glass Compositions (AREA)

Abstract

In order to improve the cutting properties of scissors (1), for example hair scissors (11), an electrically driven vibrator (5) causes at least one scissor half (4) to vibrate in a direction parallel to the longitudinal direction (6) of the blade (7) of said scissor half (4). The vibrator (5) can include a piezoelectric displacement generator (8) which deflects the blade (7) at an ultrasonic frequency.

Description

Schere scissors
Die Erfindung betrifft eine Schere mit zwei über ein Gelenk miteinander verbundenen Becks, insbesondere eine Friseurschere.The invention relates to a pair of scissors with two becks connected to one another via a joint, in particular hairdressing scissors.
Bekannte Scheren arbeiten nach dem Prinzip zweier Schneiden, die sich um einen gemeinsamen, festen Drehpunkt zueinander bewegen. Dabei gleiten die Schneiden derart aufeinander, daß diese sich in einem Punkt (Schneidepunkt) berühren.Known scissors work on the principle of two cutting edges, which move around a common, fixed pivot point. The cutting edges slide on each other in such a way that they touch at one point (cutting point).
Beim Schließen der Schere bewegt sich der Schneidepunkt aus der Richtung des gemeinsamen Drehpunktes der Schere in Richtung zur Scherenspitze.When the scissors close, the cutting point moves from the direction of the common pivot point of the scissors towards the tip of the scissors.
Dabei verändert sich auch der Öffnungswinkel der Schere, also der Winkel der zueinander laufenden Schneiden.This also changes the opening angle of the scissors, i.e. the angle of the cutting edges running towards each other.
Fadenförmiges Schnittgut, z. B. Haar, gleitet je nach Öffnungswinkel, Schneidenschärfe etc. mehr oder weniger lange vor dem eigentlichen Schneidepunkt, bis es angeschnitten, gehalten und danach abgetrennt wird. Da das Schnittgut bei dieser Methode des Schneidens keine definierte Rollbewegung um seine Längsachse ausführt, wird zwangsläufig nur ein Teilquerschnitt des Schnittguts geschnitten, der Rest quasi abgequetscht bis abgerissen.Thread-like clippings, e.g. B. hair, slides depending on the opening angle, sharpness, etc. more or less long before the actual cutting point until it is cut, held and then separated. Since the clippings do not perform a defined rolling movement around their longitudinal axis with this method of cutting, only a partial cross section of the clippings is inevitably cut, the rest are virtually squeezed to torn off.
Ungenügend geschnittenes Haar ist letztlich Ansatz für Folgeschädigungen und kann u. U. zu Spliß fuhren.Inadequate cut hair is ultimately an approach for consequential damage and can u. U. lead to split ends.
Der Erfindung liegt die Aufgabe zu Grunde, fadenförmiges Schnittgut, insbesondere Haar, gleichmäßig über seinen Umfang und Querschnitt ohne Quetsch- und Abrißzonen zu schneiden.The invention is based on the object of cutting thread-like clippings, in particular hair, uniformly over its circumference and cross section without crushing and tearing zones.
Gelöst ist diese Aufgabe gemäß dem kennzeichnenden Teil des Anspruchs 1. Danach ist mindestens ein Beck der Schere mittels einer elektrisch betriebenen Schwingungsvorrichtung in eine Schwingung parallel zur Längsrichtung dieses Becks versetzbar.This object is achieved according to the characterizing part of claim 1. According to this, at least one basin of the scissors can be set into vibration parallel to the longitudinal direction of this basin by means of an electrically operated vibration device.
Die Erfindung hat den Vorteil, daß fadenförmiges Schnittgut, insbesondere Haar, gleichmäßig über seinen Umfang und Querschnitt ohne Quetsch- und Abrißzonen geschnitten werden kann. Mit der erfindungsgemäßen Schere rollt und gleitet das Haar beim Durchschneiden zwischen den Schneiden. Dabei wird es zuverlässig und gleichmäßig durchtrennt. Beim Schließen der Schere führt die zusätzlich mindestens einer Schneide überlagerte, axial oszillierende Bewegungskomponente zu dieser verbesserten Schneid- eigenschaft.The invention has the advantage that thread-like clippings, in particular hair, can be cut evenly over its circumference and cross-section without crushing and tearing zones. With the scissors according to the invention, the hair rolls and glides between the cutting edges when it is cut. It is cut reliably and evenly. When closing the scissors, the at least one cutting edge, superimposed, leads axially oscillating motion component to this improved cutting property.
Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Ansprüchen 2 bis 10 beschrieben.Further advantageous embodiments of the invention are described in claims 2 to 10.
Gute Schneidergebnisse werden erreicht, wenn gemäß Anspruch 2 die Schwingungsvorrichtung einen Piezo weggeber enthält, der zwischen dem Blatt und einem griffseitigen Beckende liegt, und der eine Verbindung zwischen dem Blatt und dem Beckende ist. Die oszillierende Bewegung wird durch die Frequenz und die Amplitude bestimmt, mit welcher der Piezoweggeber schwingt.Good cutting results are achieved if, according to claim 2, the vibration device contains a piezo displacement sensor, which is located between the blade and a handle-side pelvic end and which is a connection between the blade and the pelvic end. The oscillating movement is determined by the frequency and the amplitude with which the piezo transducer oscillates.
Die oszillierende Bewegung sollte mit einer derart hohen Frequenz ausgeführt werden, daß innerhalb der normalen Nutzung einer Schere im Schneidevorgang das Haar mindestens einmal auf den Schneiden über seinen Umfang rollt.The oscillating movement should be carried out with such a high frequency that within normal use of a pair of scissors in the cutting process, the hair rolls over its circumference at least once on the cutting edges.
Die Schwingungsamplitude richtet sich nach dem Haarumfang. Für die Amplitude kann ca. 100 bis 200 μm angesetzt werden (Anspruch 9). Schwingen beide Schneiden gleichzeitig (Anspruch 10) und phasenverschoben zueinander, reicht die halbe Amplitude.The vibration amplitude depends on the hair size. Approx. 100 to 200 μm can be used for the amplitude (claim 9). If both cutting edges swing at the same time and out of phase with each other, half the amplitude is sufficient.
Ein System mit einstellbarer Amplitude und Frequenz für unterschiedliches Schnittgut ist hierbei möglich.A system with adjustable amplitude and frequency for different clippings is possible.
Der Piezoweggeber kann mit einer Ultraschallfrequenz betrieben werden (Anspruch 8). Er wird in mindestens eine Schneide integriert. Analog einer Ultraschallreinigungs- oder Schweißsonotrode wird die longitudinale Welle an die Schneide übertragen. Der letztlich mechanische Schwingungserzeuger kann an der Schneidenseite oder Halmseite der Schere angeordnet werden. Auf der Halmseite wäre ein entsprechendes mechanisches Spiel in der Lagerstelle zu beachten. Letzteres gilt ebenso für andere Schwingungsvorrichtungen am Halm (Anspruch 5).The piezo sensor can be operated with an ultrasound frequency (claim 8). It is integrated in at least one cutting edge. Analogous to an ultrasonic cleaning or welding sonotrode, the longitudinal shaft is transferred to the cutting edge. The ultimately mechanical vibration generator can be arranged on the cutting side or straw side of the scissors. A corresponding mechanical play in the bearing point should be noted on the straw side. The latter also applies to other vibration devices on the straw (claim 5).
Das System wird elektrisch durch einen Ultraschallgenerator angesteuert, der über elektrische Verbindungsleitungen an den elektromechanischen Schwinger angekoppelt ist.The system is controlled electrically by an ultrasonic generator, which is coupled to the electromechanical transducer via electrical connecting lines.
Gute Schneidergebnisse werden auch erzielt, wenn am Nagel des Gelenks als Schwingungsvorrichtung eine den Nagel umschließende Exzenterscheibe vorgesehen ist, die Exzenterscheibe in eine runde Aussparung des Becks eingesetzt und drehbar mit dem Nagel verbunden ist, und ein Kleinstmotor zum Rotieren der Exzenterscheibe um den Nagel vorgesehen ist (Anspruch 3). Ein Standardverbindungsnagel wird hierzu durch eine elektromechanisch angetriebene Exzentereinheit ersetzt. Die Axialkomponente der Exzenterbewegung führt zur gewünschten Schneidbewegung. Ein Kleinstmotor ist als Antrieb für die Exzentereinheit ausreichend und hat den Vorteil, daß er die Handhabung der Schere nicht beeinträchtigt.Good cutting results are also achieved if an eccentric disk surrounding the nail is provided on the nail of the joint as a vibration device, the eccentric disk is inserted into a round recess in the basin and is rotatably connected to the nail, and a Smallest motor for rotating the eccentric disc is provided around the nail (claim 3). A standard connection nail is replaced by an electromechanically driven eccentric unit. The axial component of the eccentric movement leads to the desired cutting movement. A small motor is sufficient as a drive for the eccentric unit and has the advantage that it does not affect the handling of the scissors.
Die Schwingungsvorrichtung kann auch derart ausgestaltet sein, daß das Beck zumindest bereichsweise aus einem magnetostriktiven Material besteht, welches von einer starren, ortsfesten Erregerspule umwickelt ist (Anspruch 4). Die Scherenschneiden sind hierbei auf einen Grundkörper aus magnetostriktivem Material aufgebracht. Durch Anlegen eines elektromagnetischen Feldes am magnetostriktiven Material wird eine Längenänderung des Materials und letztlich eine Oszillation der Schneiden zueinander bewirkt. Die Erregerspulen können im Halmbereich der Schere angeordnet sein. Über eine elektrische Verbindungsleitung wird die Erregerspule mit einem Generator verbunden.The vibration device can also be designed such that the basin consists at least in regions of a magnetostrictive material which is wrapped by a rigid, stationary excitation coil (claim 4). The scissor blades are applied to a base made of magnetostrictive material. Applying an electromagnetic field to the magnetostrictive material causes a change in the length of the material and ultimately an oscillation of the cutting edges to one another. The excitation coils can be arranged in the stalk area of the scissors. The excitation coil is connected to a generator via an electrical connecting line.
Als Material ist Nickel oder eine Nickellegierung geeignet (Anspruch 6). Zum einen hat Nickel die geforderten magnetostriktiven Eigenschaften, zum anderen eignet sich Nickelstahl sehr gut zur Scherenfertigung. Zum Vermeiden einer Kontaktallergie kann das Material einen Kunststoffüberzug aufweisen (Anspruch 7).Nickel or a nickel alloy is suitable as material (claim 6). On the one hand, nickel has the required magnetostrictive properties, on the other hand, nickel steel is very well suited for the manufacture of scissors. To avoid contact allergy, the material can have a plastic coating (claim 7).
Im Folgenden wird die Erfindung anhand von Ausführungsbeispiele darstellenden Figuren näher beschrieben. Es zeigt:The invention is described in more detail below with reference to figures which illustrate exemplary embodiments. It shows:
Figur 1 in einer Seitenansicht eine Schere, deren Becks über einenFigure 1 is a side view of a pair of scissors, the Becks over a
Nagel gelenkig miteinander verbunden sind, und deren griffseifige Beckenden jeweils ein Auge aufweisen, wobei als Schwingungsvorrichtung ein Piezoweggeber zwischen einem Blatt und dem Beckende vorgesehen ist;Nail are connected to each other in an articulated manner, and the soapy pelvic ends each have an eye, with a piezo sensor between a blade and the pelvic end being provided as the vibration device;
Figur 2 in einer Seitenansicht eine Schere analog Figur 1 , jedoch mit einer Schwingungsvorrichtung, die eine den Nagel umschließende Exzenterscheibe und einen Kleinstmotor zum Drehen der Exzenterscheibe aufweist, sowie Figur 3 in einer Seitenansicht eine Schere analog Figur 1 , jedoch mit einer Schwingungsvorrichtung, die ein magnetostriktives Material an einem Halm und eine das Material umgebende, starre, ortsfeste Erregerspule aufweist.Figure 2 is a side view of a pair of scissors analogous to Figure 1, but with a vibration device which has an eccentric disk surrounding the nail and a miniature motor for rotating the eccentric disk, and 3 shows a side view of a pair of scissors similar to FIG. 1, but with an oscillation device which has a magnetostrictive material on a stalk and a rigid, stationary excitation coil surrounding the material.
Bei einer Schere 1 mit zwei über ein Gelenk 2 miteinander verbundenen Becks 3, 4 ist ein Beck 4 mittels einer elektrisch betriebenen Schwingungs- vonϊchtung 5 in eine Schwingung parallel zur Längsrichtung 6 des Blatts 7 dieses Becks 4 versetzbar (Figur 1). Die Schwingungsvorrichtung 5 enthält einen Piezoweggeber 8, der zwischen dem Blatt 7 und dem Gelenk 2 liegt. Der Piezoweggeber 8 ist eine Verbindung 9, die das Blatt 7 und das griff- seitige Beckende 10 des Becks 4 miteinander verbindet. Die Schere 1 ist als Friseurschere 1 1 mit Augen 12 ausgestaltet. Eine elektrische Leitung 13 versorgt den Piezoweggeber 8 mit einer Ultraschallfrequenz. Während eines Schneidvorganges wird die Schwingung des Blatts 7, deren Amplitude 150 μm beträgt, dazu genutzt, Haar besser zu schneiden.In the case of a pair of scissors 1 with two basins 3, 4 connected to one another via a joint 2, a basin 4 can be set into vibration parallel to the longitudinal direction 6 of the blade 7 of this basin 4 by means of an electrically operated vibration device 5 (FIG. 1). The vibration device 5 contains a piezo sensor 8, which lies between the blade 7 and the joint 2. The piezo sensor 8 is a connection 9 which connects the blade 7 and the handle-side basin end 10 of the basin 4 to one another. The scissors 1 is designed as hairdressing scissors 11 with eyes 12. An electrical line 13 supplies the piezo sensor 8 with an ultrasound frequency. During a cutting process, the vibration of the blade 7, the amplitude of which is 150 μm, is used to cut hair better.
Bei der Schere 1 nach Figur 2 ist als Schwingungs Vorrichtung 5 eine den Nagel 14 des Gelenks 2 umschließende Exzenterscheibe 15 vorgesehen, die in eine runde Aussparung 16 des Becks 4 eingesetzt und drehbar mit dem Nagel 14 verbunden ist. Die Exzenterscheibe 15 rotiert um den Nagel 14. Diese Rotationsbewegung wird mittels eines Kleinstmotors 17 erreicht. Das gesamte Beck 4 führt die Schwingung aus.In the scissors 1 according to FIG. 2, an eccentric disc 15, which surrounds the nail 14 of the joint 2, is provided as the vibration device 5, which is inserted into a round recess 16 of the basin 4 and is rotatably connected to the nail 14. The eccentric disc 15 rotates around the nail 14. This rotational movement is achieved by means of a miniature motor 17. The entire Beck 4 carries out the vibration.
Beim Ausführungsbeispiel der Figur 3 ist als Schwingungs Vorrichtung 5 ein magnetostriktives Material 18 vorgesehen, das von einer starren, ortsfesten Erregerspule 19 umwickelt ist. Die Schwingungsvorrichtung 5 ist am Halm 20 des Becks 4 vorgesehen. Lediglich innerhalb der Erregerspule 19, innerhalb eines Halmbereichs 21 , ist ein magnetostriktives Material 18 verwendet worden. Ansonsten ist die Schere 1 aus herkömmlichem Scherenstahl 22 gefertigt. Das Material 18 ist eine Nickellegierung 23. Das Beck 4 weist am Nagel 14 ein Spiel 24 in Längsrichtung 6 des Becks 4 auf. Das Spiel 24 hat eine der Amplitude der Schwingung des Blatts 7 entsprechende Ausdehnung von 150 μm in Längsrichtung 6. BezugszeichenlisteIn the exemplary embodiment in FIG. 3, a magnetostrictive material 18 is provided as the vibration device 5, which is wrapped by a rigid, stationary excitation coil 19. The vibration device 5 is provided on the stem 20 of the basin 4. A magnetostrictive material 18 has been used only within the excitation coil 19, within a stalk region 21. Otherwise, the scissors 1 are made of conventional scissor steel 22. The material 18 is a nickel alloy 23. The basin 4 has a play 24 in the longitudinal direction 6 of the basin 4 on the nail 14. The game 24 has an extension of 150 μm in the longitudinal direction 6 corresponding to the amplitude of the vibration of the blade 7. Reference list
Scherescissors
Gelenkjoint
BeckBeck
SchwingungsvorrichtungVibrating device
LängsrichtungLongitudinal direction
Blattsheet
PiezoweggeberPiezo sensor
Verbindungconnection
BeckendePelvic
FriseurschereHairdressing scissors
Augeeye
Leitungmanagement
Nagelnail
ExzenterscheibeEccentric disc
AussparungRecess
Kleinstmotor magnetostriktives MaterialSmallest motor magnetostrictive material
ErregerspuleExcitation coil
HalmStalk
HalmbereichCulm area
ScherenstahlScissors steel
NickellegierungNickel alloy
Spiel game

Claims

A n s p r ü c h e Expectations
1. Schere mit zwei über ein Gelenk miteinander verbundenen Becks, dadurch gekennzeichnet, daß mindestens ein Beck (4) mittels einer elektrisch betriebenen Schwingungsvorrichtung (5) in eine Schwingung parallel zur Längsrichtung (6) des Blatts (7) dieses Becks (4) versetzbar ist.1. scissors with two becks connected to each other by a joint, characterized in that at least one basin (4) by means of an electrically operated vibration device (5) in a vibration parallel to the longitudinal direction (6) of the blade (7) of this basin (4) can be set is.
2. Schere nach Anspruch 1 , dadurch gekennzeichnet, daß die Schwingungsvorrichtung (5) einen Piezoweggeber (8) enthält, der zwischen dem Blatt (7) und einem griffseitigen Beckende (10) liegt, und der eine Verbindung (9) zwischen dem Blatt (7) und dem Beckende (10) ist.2. Scissors according to claim 1, characterized in that the vibration device (5) contains a piezo sensor (8) which lies between the blade (7) and a handle-side cymbal end (10), and which has a connection (9) between the blade ( 7) and the end of the pelvis (10).
3. Schere nach Anspruch 1 , dadurch gekennzeichnet, daß als Schwingungs Vorrichtung (5) eine den Nagel (14) des Gelenks (2) umschließende Exzenters cheibe (15) vorgesehen ist, daß die Exzenterscheibe (15) in eine runde Aussparung (16) des Becks (4) eingesetzt und drehbar mit dem Nagel (14) verbunden ist, und daß ein Kleinstmotor (17), zum Rotieren der Exzenterscheibe ( 15) um den Nagel ( 14), vorgesehen ist.3. Scissors according to claim 1, characterized in that as the vibration device (5) a nail (14) of the joint (2) surrounding eccentric disc (15) is provided that the eccentric disc (15) in a round recess (16) the basin (4) is inserted and rotatably connected to the nail (14), and that a small motor (17) is provided for rotating the eccentric disc (15) around the nail (14).
4. Schere nach Anspruch 1 , dadurch gekennzeichnet, daß das Beck (4) als Schwingungs Vorrichtung (5) zumindest bereichsweise aus einem magnetostriktiven Material (18) besteht, und daß dieses Material ( 18) von einer starren, ortsfesten Erregerspule (19) umwickelt ist.4. Scissors according to claim 1, characterized in that the Beck (4) as a vibration device (5) consists at least in regions of a magnetostrictive material (18), and that this material (18) is wrapped by a rigid, stationary excitation coil (19) is.
5. Schere nach Anspruch 1 , dadurch gekennzeichnet, daß die Schwingungsvorrichtung (5) am Halm (20) des Becks (4) vorgesehen ist, und daß das Beck (4) am Nagel (14) ein Spiel (23) in Längsrichtung (6) des Becks (4) aufweist. 5. Scissors according to claim 1, characterized in that the vibration device (5) on the stalk (20) of the basin (4) is provided, and that the basin (4) on the nail (14) a game (23) in the longitudinal direction (6 ) of the basin (4).
6. Schere nach Anspruch 4 oder Anspruch 5, dadurch gekennzeichnet, daß als Material (18) Nickel oder eine Nickellegierung (22) vorgesehen ist.6. Scissors according to claim 4 or claim 5, characterized in that nickel or a nickel alloy (22) is provided as the material (18).
7. Schere nach Anspruch 6, dadurch gekennzeichnet, daß das Material einen Kunststoffüberzug aufweist.7. Scissors according to claim 6, characterized in that the material has a plastic coating.
8. Schere nach Anspruch 2, dadurch gekennzeichnet, daß die Schwingungs Vorrichtung (5) mit einer Ultraschallfrequenz betrieben wird.8. Scissors according to claim 2, characterized in that the vibration device (5) is operated at an ultrasonic frequency.
9. Schere nach mindestens einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß als Amplitude der Schwingungs Vorrichtung (5) 100 bis 200 μm vorgesehen sind.9. Scissors according to at least one of claims 1 to 8, characterized in that 100 to 200 microns are provided as the amplitude of the vibration device (5).
10. Schere nach mindestens einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß an beiden Becks jeweils eine Schwingungsvorrichtung vorgesehen ist. 10. Scissors according to at least one of claims 1 to 9, characterized in that an oscillation device is provided on each of the two becks.
EP98943769A 1997-08-09 1998-07-22 Scissors Expired - Lifetime EP0930959B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19734605A DE19734605A1 (en) 1997-08-09 1997-08-09 scissors
DE19734605 1997-08-09
PCT/EP1998/004609 WO1999007528A1 (en) 1997-08-09 1998-07-22 Scissors

Publications (2)

Publication Number Publication Date
EP0930959A1 true EP0930959A1 (en) 1999-07-28
EP0930959B1 EP0930959B1 (en) 2000-12-13

Family

ID=7838528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98943769A Expired - Lifetime EP0930959B1 (en) 1997-08-09 1998-07-22 Scissors

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US (2) US6357121B1 (en)
EP (1) EP0930959B1 (en)
JP (1) JP2001501859A (en)
CN (1) CN1229378A (en)
AT (1) ATE198062T1 (en)
AU (1) AU9155898A (en)
BR (1) BR9806089A (en)
DE (2) DE19734605A1 (en)
ES (1) ES2154940T3 (en)
RU (1) RU2167049C2 (en)
WO (1) WO1999007528A1 (en)

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JP2002172280A (en) * 2000-09-28 2002-06-18 Kikuboshi:Kk Hair cutting device
EP1827772A1 (en) * 2004-10-18 2007-09-05 Koninklijke Philips Electronics N.V. Scissors and drives for scissors
US9027250B2 (en) 2012-01-18 2015-05-12 Jerry Randall Greer Protective riser guide for scissors
WO2015195130A1 (en) * 2014-06-19 2015-12-23 Greer Jerry Randall Protective riser guide for scissors
US20160175150A1 (en) * 2014-12-18 2016-06-23 Surgical Design Corporation Ultrasonic handpiece with multiple drivers
CN110545969A (en) * 2018-03-28 2019-12-06 马拉姆·巴赫特 safety device for hot and sharp tools
CA3204754A1 (en) * 2020-08-11 2022-02-17 Mikhail Andreevich NOVIKOV Shears for seam cutting

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Also Published As

Publication number Publication date
JP2001501859A (en) 2001-02-13
CN1229378A (en) 1999-09-22
DE19734605A1 (en) 1999-02-11
ATE198062T1 (en) 2000-12-15
EP0930959B1 (en) 2000-12-13
BR9806089A (en) 1999-08-24
US20020083594A1 (en) 2002-07-04
AU9155898A (en) 1999-03-01
ES2154940T3 (en) 2001-04-16
RU2167049C2 (en) 2001-05-20
US6357121B1 (en) 2002-03-19
DE59800385D1 (en) 2001-01-18
WO1999007528A1 (en) 1999-02-18

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