EP3771534B1 - Couteau rotatif pourvu de lame interchangeable - Google Patents

Couteau rotatif pourvu de lame interchangeable Download PDF

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Publication number
EP3771534B1
EP3771534B1 EP20182874.6A EP20182874A EP3771534B1 EP 3771534 B1 EP3771534 B1 EP 3771534B1 EP 20182874 A EP20182874 A EP 20182874A EP 3771534 B1 EP3771534 B1 EP 3771534B1
Authority
EP
European Patent Office
Prior art keywords
blade
handle
blade holder
rotary cutter
rotary
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
EP20182874.6A
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German (de)
English (en)
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EP3771534A1 (fr
Inventor
Andreas Papenfuss
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.)
William Prym GmbH and Co KG
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William Prym GmbH and Co KG
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Application filed by William Prym GmbH and Co KG filed Critical William Prym GmbH and Co KG
Publication of EP3771534A1 publication Critical patent/EP3771534A1/fr
Application granted granted Critical
Publication of EP3771534B1 publication Critical patent/EP3771534B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B25/00—Hand cutting tools involving disc blades, e.g. motor-driven
    • B26B25/005—Manually operated, e.g. pizza cutters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/10—Handle constructions characterised by material or shape
    • B25G1/102—Handle constructions characterised by material or shape the shape being specially adapted to facilitate handling or improve grip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B29/00—Guards or sheaths or guides for hand cutting tools; Arrangements for guiding hand cutting tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B29/00—Guards or sheaths or guides for hand cutting tools; Arrangements for guiding hand cutting tools
    • B26B29/06—Arrangements for guiding hand cutting tools

Definitions

  • the invention relates to a rotary cutter with a replaceable blade.
  • Rotary cutters that are used to cut various types of materials, in particular for cutting textile materials, for example for handmade items of clothing.
  • Such handheld rotary cutters typically include a handle and a round blade disposed on the handle.
  • Rotary cutters with exchangeable blades are already known, namely from the documents WO 00/07783 A2 , U.S. 6,438,850B2 , U.S. 5,144,749
  • the object of the present invention is to provide an improved rotary cutter with an exchangeable blade, which enables the blade to be exchanged easily with a low risk of injury and which can be used in a variety of ways.
  • This new rotary cutter with exchangeable blade has a handle for the user of the rotary cutter. At one end of the handle, the holding area, the handle is connected to a blade holder which comprises a blade.
  • the connection between the handle and the blade holder is detachable, which enables the blade holder and thus the blade stored in the blade holder to be changed.
  • the blade holder represents a solid sheath for the blade and holds at least half of the blade in the receiving space of this sheath.
  • the shape of the solid sheath of the blade holder is chosen so that the blade is between the two semicircular side walls the sheath is arranged and these semicircular side walls cover the blade on both sides.
  • the blade edge is protected in this covered area by the curved outer wall of the sheath of the blade holder.
  • the course of the outer wall is adapted to the radial course of the blade edge so that, on the one hand, the blade mounted in the blade holder can be freely rotated around its axis of rotation without touching the outer wall and, on the other hand, the smallest possible size for the blade holder can be selected.
  • a bearing bush is provided on the two side walls of the blade holder in the area around the axis of rotation of the blade and the blade has a slide bearing in the middle, which engages with its cylinder protruding over the blade surface on both sides in the respective bearing bush of the side walls of the blade holder .
  • the blade holder itself is also mounted on the handle so that it can rotate about the same axis of rotation.
  • the rotary movement of the blade holder is limited, namely between two rotary end positions.
  • the first end of rotation position - the safety position - the sheath of the blade holder is outside the handle and thus covers the blade from the outside.
  • this securing position which is assumed during assembly and when the rotary cutter is not used, injuries to the edge of the blade cannot occur.
  • the working position - the blade holder is twisted into the handle, whereby the blade protrudes from the handle and a sufficiently large circumference of the blade edge is exposed for a desired use.
  • the rotary movement of the blade holder is made possible by a corresponding guide on the handle, namely a guide running in a semicircle around the common axis of rotation of the blade and the blade holder.
  • This guide is arranged in an area on the rear wall of the handle, which is extended beyond the grip area. This area represents the holding area.
  • the guide is provided as a recess in the rear wall. A rotary knob of the blade holder engages in this guide and protrudes outward from a side wall of the blade holder.
  • the aforementioned end-of-rotation positions of the blade holder can each ensure that the rotary knob is held securely in the respective end-of-rotation position by the provision of clamping or fixing elements.
  • the blade holder is mounted at one end of the handle.
  • the rear wall has a hole in the holding area for a pivot bolt that extends through the bearing bushes of the blade holder.
  • a screw is advantageously used as a connecting means between the handle and the blade holder, which runs along the axis of rotation of the blade and the blade holder through the rotary cutter and also takes on the function of the pivot pin.
  • the blade holder is arranged between the rear wall of the handle and a cover connected to the handle.
  • This cover is connected to the handle, for example via the same screw that is used to connect the blade holder and handle.
  • the cover has a threaded sleeve on its inner surface facing the handle, which cooperates with a thread which is provided on the end of the shaft of the screw.
  • the screw can also reach through the cover and be connected on the outside with an additional nut.
  • the cover also advantageously has a recess in the form of a semicircular guide, comparable to that on the rear wall of the handle.
  • Both guides have the same shape and size.
  • the width of the guides is adapted in each case to the diameter of the rotary knobs, so that they can easily be moved along the guides from one end of rotation position to the other end of rotation position.
  • Both guides are arranged parallel to one another and at the same distance from the axis of rotation.
  • Another knob of the blade holder engages in the guide in the cover.
  • Both knobs are arranged on the blade holder so that they are the same size and have the same central axis. she each point outwards, on the one hand from the front side wall to the front and on the other hand from the rear side wall of the blade holder to the rear. Guiding the blade holder on both sides by means of the two rotary knobs in the two semicircular guides ensures uniform support of the blade holder and safe movement of the blade while working.
  • the blades of this new rotary cutter can also be exchanged in an advantageous manner.
  • the blade holder is released from the handle.
  • this screw is loosened and a unit comprising the blade holder with the blade is removed from the handle.
  • the removal takes place in the safety position of the blade holder, so that the user can grasp the blade holder on the side surfaces of the solid sheath and remove the blade holder with the blade without touching the blade, in particular the blade edge, and in the same way a unit consisting of a blade holder and a can use a new blade. It is not necessary to touch the edge of the blade during assembly, so that the user is protected from injury.
  • the blade holder protects the blades - even when stored outside of the rotary cutter - from dulling and prevents damage to work materials.
  • the detachable connection between the handle and the blade holder advantageously consists of a screw connection.
  • the screw runs along the axis of rotation, rests with the screw head on the rear wall of the handle, passes through the hole on this rear wall, the bearing bushes of the blade holder and the sliding bearing of the blade and is connected at the other end to the threaded sleeve on the inside of the cover, for example.
  • a nut In the case of a simpler design, for example without a cover, it is also possible to use a nut.
  • the tool for forming or releasing the connection between the handle and the blade holder e.g. a screwing tool
  • the tool for forming or releasing the connection between the handle and the blade holder is arranged on the rotary cutter itself.
  • the grip area of the handle there is a recess, in particular reaching through the handle, in which the tool is held.
  • the tool can therefore be easily inserted or removed from both sides.
  • the head of the tool is adapted to the shape of the recess, so that a form-fitting receptacle is realized.
  • fixing elements for a secure hold of the tool can be provided in the recess and on the tool.
  • the new rotary cutter has a shape that is comfortable for the user.
  • the handle is formed from two shells made of plastic, the front shell leaving the holding area of the blade holder free and the rear wall of the rear shell extending into this holding area.
  • at least one upper part and one lower part made of softer plastic are provided in this advantageous embodiment.
  • the upper part and the lower part can also encompass the holding area of the handle in one piece.
  • the shape of the upper part and the lower part is ergonomic so that the rotary cutter lies comfortably in the user's hand when working.
  • the ergonomic shape of the handle allows comfortable use in different grip positions.
  • This new ergonomic rotary cutter advantageously includes the function of safe blade change.
  • Blade holder and blade form a unit that can be assembled and disassembled, so that each blade is provided with a blade guard.
  • Different blades can be used with the rotary cutter for different separating cuts. For example, a blade holder with a round blade with a flat blade is used for a straight severing cut; for zig-zag dividing lines, round ones are used Blades with corrugated blade and round blades with teeth on the peripheral edge of the blade are used for perforation lines.
  • the different blades with a comparable outer diameter advantageously each form a unit with a blade holder of the same size.
  • these blade holders can be designed in different colors.
  • the blade which is clearly visible in the working position, facilitates precise work.
  • the new rotary cutter can be operated equally well by left-handers and right-handers thanks to the provision of two rotary knobs.
  • the ergonomic shape of the handle makes it comfortable to use. Separating cuts and the rotation of the blade holder from one end of rotation position to the other can easily be carried out with one hand.
  • FIGS Figures 1 to 3 shows a particularly advantageous rotary cutter 10.
  • the individual parts of the rotary cutter 10 are shown before assembly, namely the handle 20, the blade holder 30, the cover 28, the connecting means 40 and the tool 50 for creating a screw connection.
  • the handle 20 in this case consists of two shells 25, 26 made of plastic, namely the front shell 25 and the rear shell 26, which together with the upper part 21 and the lower part 22 form the handle area 23 of the rotary cutter 10.
  • the rear wall 241 of the shell 26 extends from this handle area 23, the right part of the handle 20 in FIG Figs. 1 to 3 , to the holding area 24, the left part of the handle 20 shown.
  • the blade holder 30 is placed on this rear wall 241 for assembly, with its rear rotary knob 31 inserted into a semicircular guide 27 and connected to the handle 20 via a screw connection. After assembly, the screw 40 shown runs along the axis of rotation D, about which the blade 33 and the blade holder 30 can be moved.
  • the screw 40 is inserted into the bore 242 on the rear wall 241 of the rear shell 26 of the blade holder 30, pushed through the blade holder 30 and blade 33 until the shaft of the screw with its end-side thread 42 points out of the blade holder 30 at the front.
  • the cover 28 is then placed on the blade holder 30.
  • This cover 28 can optionally also be fixed on the rotary cutter 10 by clamping means.
  • this cover 28 has a threaded sleeve on its inside, which cooperates with the thread 42 of the screw 40.
  • the screw 40 has between the screw head and thread
  • the tool 50 shown which in this example has a shaft 51 with a hexagonal cross-section, is provided for easier assembly and connection formation.
  • the screw head of the screw 40 has a corresponding driving profile, in this case a hexagon socket 41, shown in FIG Fig. 1 or Fig. 3 .
  • the blade holder 30 When changing the blade, the blade holder 30 is to be rotated into the safety position and can be grasped by the person to be used on its fixed cover, consisting of side walls 36, 37 and outer wall 38, and removed from the rotary cutter after loosening the screw connection and removing the cover 28.
  • the blade holder 30 can, for example, be safely inserted into a plug-in container 60, where unused blade holders 30 ', 30 ", 30'" are stored.
  • To insert a new blade 33 a new unit of blade holder 30 ′ with blade 33 is removed from insertable container 60.
  • the blade holder 30 is held on its solid sheath by the person to be used and is thus inserted into the handle 20 without touching the blade edge 331.
  • the blade 33 points upwards and, after being inserted in the holding area 24 of the handle 20, is already essentially covered by the handle 20.
  • the cover 28 is then put on and the screw connection is made by means of the tool 50.
  • a rotary cutter 10 shown in FIG Fig. 3 , namely in the secured position of the blade holder 30 received.
  • damage to the blade edge 331 of the blade 33 can therefore be prevented when the blade is changed.
  • the slitter winder 10 is in Fig. 3 with a view of the rear shell 26, which comprises the rear wall 241 reaching into the holding area 24 with the guide 27 running semicircular about the axis of rotation D.
  • the width of this guide 27 is adapted to the diameter of the rear knob 31 protruding from the blade holder 30, so that it can easily be removed from the locking position - shown in FIG Fig. 3 - in the working position - shown in Fig. 2 - Can be moved in the direction of the arrow. Since the rotary knob 31 is an integral part of the fixed sheath of the blade holder 30, the sheath of the blade holder 30 is also carried along during this displacement.
  • the rotary knob 31 is again in an end-of-rotation position, shown in FIG Fig. 2 , in this case at the left end of the guide 27 and the fixed sheath of the blade holder 30 has moved about the axis of rotation D and is in the working position within the handle 20, namely between the rear wall 241 and the cover 28 and covered by them.
  • the Fig. 2 shows the working position.
  • the rotary cutter 10 is shown from its front, namely with a view of the front shell 25 and the cover 28.
  • This cover 28 also has a semicircular guide 29 running around the axis of rotation D which, after the cover 28 has been mounted, is parallel to the guide 27 the rear wall 241 of the handle 20 extends and has the same shape and size as the guide 27.
  • a further rotary knob 31 ′ engages in this guide 29 and projects outward from the front side wall 37 of the blade holder 30.
  • Both rotary knobs 31, 31 ' have the same central axis and move in parallel within their guides 27, 29.
  • the rotary knobs 31, 31' are fixed by constrictions 271 of the guides 27, 29. They can, however, be moved with one hand from their end-of-rotation positions in the direction of the arrow by applying little force. Since the rotary knobs 31, 31 'are provided on both sides of the rotary cutter 10, their movement can be carried out easily by both right-handers and left-handers in the same way.
  • a round blade 33 with a corrugated blade is held in the blade holder 30 so that it can rotate, so that when the rotary cutter 10 is used, the circumferential blade edge 331 can produce zig-zag-shaped separating cuts.
  • the blade 33 is held on the solid sheath of the blade holder 30, consisting of two side walls 36, 37 and the outer wall 38 arranged around the blade edge 331, and about half of it is covered to the outside by these walls 36, 37, 38.
  • the outer wall 38 is located at such a distance after assembly the axis of rotation D, that a rotary movement of the blade 33 is easily possible in the working position. This distance is therefore slightly larger than the diameter of the blade 33.
  • the blade holder 30 and the blade 33 represent a unit in the new rotary cutter 10.
  • the blade 33 is changed by changing the blade holder 30 in which the blade 33 is received.
  • the blade 33 is provided with a slide bearing 34, which is, for example, molded onto the metallic blade 33 and includes a cylinder 35 which protrudes outward on both sides over the surface of the blade. With this cylinder 35, the blade 33 engages in bearing bushings 32 of the blade holder 30, which are part of the side walls 36, 37, shown in FIG Fig. 4 .
  • this preassembled unit is then inserted into the handle 20 and the screw connection is made by means of the tool 50.
  • the tool 50 is always available with the new rotary cutter 10. It is held on the handle 20.
  • the handle 20 has a recess 231 in the handle area 23, into which the tool 50 can be inserted.
  • the tool head 52 is adapted to the shape of this recess 231.
  • the length of the recess 231 is selected so that the shaft 51 can also be accommodated.
  • additional fixing elements are provided both on the tool head 52 and within the recess.
  • the tool head 52 has tooth-like protruding fixing elements 53, shown in FIG Fig. 5 which fit into a central groove 232 of recess 231 shown in FIG Fig. 1 intervene.
  • the tool 50 can easily be pushed out of this fixing position in one direction or the other by lateral pressure and is then available for a blade change.
  • the new winder 10 can be equipped with different blades, which are each held in blade holders 30.
  • a rotary cutter set includes, for example, in addition to the rotary cutter 10 shown with a blade 33 corrugated blade also blade holder 30 'with a blade with a flat blade for straight separating cuts, blade holder 30 "with a blade with serrated peripheral edge for perforation lines and another blade holder 30'" for another desired blade.
  • the various blade holders 30 ', 30 ", 30'” are advantageously stored in the plug-in container 60 such that the blades 33 reach into the plug-in container 60 and the blade holders 30 ', 30 ", 30'” point outwards.
  • a desired unit can be securely gripped by the fixed sheath of the respective blade holder 30 ', 30 ", 30'” and inserted into the handle 20 without touching the blade.
  • the fixed sheaths of the blade holders 30', 30 ", 30 '" with the different blades 33 are designed in different colors.
  • the rotary cutter 10 can be operated with one hand, ie the blade holder 30, which is guided on both sides, can easily be moved from its secured position into the working position and back. If the blade holder 30 is in its working position, the user can make any separating cuts.
  • the ergonomic shape of the handle 20 facilitates the comfortable use of the rotary cutter 10.
  • the upper part 21 and the lower part 22 of the handle 20 are ergonomically shaped and made of a soft plastic material, which provides a comfortable grip.
  • the upper part 21 is slightly indented at the transition between the grip area 23 and the holding area 24 and provides a surface for the thumb or forefinger to exert pressure when using the rotary cutter 10.
  • the lower part 22 offers an ergonomically designed surface for the encompassing fingers.
  • the upper part 21 and lower part 22 are connected to one another, so that the user's comprehensive hand is also in contact with soft plastic on the right-hand side of the rotary cutter 10.
  • the rotary cutter 10 can be used in various hand positions and guided during the severing cut. During the severing cut, the blade edge 331 of the blade 33 is always clearly visible. After a severing cut can be easy the safety position can be set again in order to prevent injuries to the user or damage to the textile materials used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Textile Engineering (AREA)
  • Knives (AREA)

Claims (16)

  1. Couteau rotatif pourvu d'une lame interchangeable (33), comprenant
    - une poignée de retenue (20) et
    - un porte-lame (30) qui à une extrémité de la poignée de retenue (20) - la zone de retenue (24) - est relié de manière détachable avec la poignée de retenue (20),
    - sachant que le porte-lame (30) sert d'appui à une lame (33) à arête circonférentielle (331), sachant que la lame tourne autour d'un axe de rotation (D),
    caractérisé en ce
    - qu'une enveloppe fixe du porte-lame (30) reçoit au moins la moitié de la lame (33), qu'elle recouvre ce faisant la lame (33) des deux côtés de façon semi-circulaire par des parois latérales (36, 37) de l'enveloppe et qu'elle protège l'arête (331) de la lame sur sa demi-circonférence par une paroi extérieure (38) de l'enveloppe, sachant que la paroi extérieure (38) relie les parois latérales (36, 37) du porte-lame (30) et qu'elle présente un tracé adapté à la circonférence de la lame,
    - sachant que pour maintenir la lame (33) en appui tournant, une douille de palier (32) est présente sur les deux parois latérales (36, 37) du porte-lame (30) dans la zone située autour de l'axe de rotation (D), et que la lame (33) comporte un palier lisse (34),
    - en ce que le porte-lame (30) est disposé, de manière à pouvoir tourner autour de l'axe de rotation (D), contre la poignée de retenue (20), sachant que deux positions finales de rotation sont prévues, à savoir une première position finale de rotation
    - la position de sécurisation - où la lame (33) saillant de la poignée de retenue (20) est recouverte par le porte-lame (30), et une seconde position - la position de travail - où la lame (33) saillant de la poignée de retenue (20) est découverte,
    - sachant qu'un bouton rotatif (31) fait saillie de la paroi latérale arrière (37) du porte-lame (30) et que ce bouton rotatif (31) engrène dans un guidage (27) semi-circulaire situé au dos (241) de la poignée de retenue (20) et qu'il est déplaçable à l'intérieur du guidage (27) entre deux positions finales, les positions de fin de rotation.
  2. Couteau rotatif selon la revendication 1, caractérisé en ce que dans la zone de retenue (24) de la poignée de retenue (20) est présent un cache (28) faisant que le porte-lame (30) est disposé entre une paroi arrière (241) de la poignée de retenue (20) et le cache (28).
  3. Couteau rotatif selon la revendication 1 ou 2, caractérisé en ce que dans la position de sécurisation le porte-lame (30) fait saillie hors de la zone de retenue (24) de la poignée de retenue (20) et que la lame (33) est disposée à l'intérieur du porte-lame (30) et de la poignée de retenue (20).
  4. Couteau rotatif selon la revendication 2 ou 3, caractérisé en ce que le cache (28) possède un guidage semi-circulaire (29), disposé autour de l'axe de rotation D à la même distance que le guidage semi-circulaire (27), contre la paroi arrière (241) de la poignée de retenue (20) et configuré de la même taille.
  5. Couteau rotatif selon la revendication 4, caractérisé en ce qu'un autre bouton rotatif (31') fait saillie par rapport à la paroi latérale avant (36) du porte-lame (30) et que cet autre bouton rotatif (31') engrène dans le guidage semi-circulaire (29) du cache (28).
  6. Couteau rotatif selon l'une des revendications 1 à 5, caractérisé en ce que le guidage semi-circulaire (27) de la poignée de retenue (20) et le cas échéant le guidage semi-circulaire (29) du cache (28) présentent une largeur adaptée au diamètre du bouton rotatif (31, 31'), et que les deux positions de fin de rotation du bouton rotatif (31, 31') sont obtenues par des rétrécissements (271) de la largeur de guidage.
  7. Couteau rotatif selon l'une des revendications 1 à 6, caractérisé en ce qu'en détachant la jonction entre la poignée de retenue (20) et le porte-lame (30), il devient possible de retirer de la poignée de retenue (20) une unité composée du porte-lame (30) et de la lame (33).
  8. Couteau rotatif selon l'une des revendications 1 à 5, caractérisé en ce que la jonction détachable entre la zone de retenue (24) de la poignée de retenue (20) et le porte-lame (30) est une jonction vissée, sachant que la vis (40) présente un tracé le long de l'axe de rotation (D), et qu'elle traverse un alésage (242) de la paroi arrière (241) dans la zone de retenue (24) de la poignée de retenue (20), qu'elle traverse les douilles de palier (32) du porte-lame (30) et le palier lisse (34) de la lame (33).
  9. Couteau rotatif selon la revendication 8, caractérisé en ce qu'un filetage (42) est prévu à l'extrémité de la tige de vis (40), filetage qui interagit avec un écrou séparé ou avec une douille filetée contre le côté intérieur du cache (28), et sachant que la vis (40) possède un profil d'entraînement (41) contre la tête de vis, de préférence un creux à six pans.
  10. Couteau rotatif selon l'une des revendications 1 à 9, caractérisé en ce que contre la pièce (23) de la poignée de retenue (20) est présent un évidement (231) dont le tracé traverse de préférence la poignée de retenue (20) et peut recevoir un outil (50) servant à établir la jonction, ou à défaire la jonction entre la poignée de retenue (20) et le porte-lame (30), sachant que l'outil (50) est un entraînement pour tête de vis et qu'il possède une queue (51) pour vis de section hexagonale et une tête d'outil (52) adaptée à l'évidement (231) de la poignée de retenue (20).
  11. Couteau rotatif selon l'une des revendications 1 à 10, caractérisé en ce que la poignée de retenue (20) se compose de deux coques (25, 26) en plastique assemblées et qu'en plus est présente une partie supérieure (21) configurée ergonomique et une partie inférieure (22) configurée ergonomique, sachant que la partie supérieure (21) et la partie inférieure (22) se composent d'une matière plastique plus molle que les deux coques (25, 26) et qu'elles sont le cas échéant configurées d'une couleur différente des coques (25, 26) de la poignée de retenue (20).
  12. Couteau rotatif selon la revendication 11, caractérisé en ce que dans l'évidement (231) de la poignée de retenue (20) est présent en plus au moins un élément d'immobilisation (231) pour l'outil (50), de préférence une gorge ou nervure circonférentielle présente entre les coques (25, 26), et que l'outil (50) possède au moins un élément d'immobilisation (53) au niveau de la tête de vissage (52), élément qui interagit avec l'élément d'immobilisation (231) situé dans l'évidement (231) de la poignée de retenue (20).
  13. Kit de couteau rotatif comprenant un couteau rotatif (10) selon l'une des revendications 1 à 12 et plusieurs unités composées chacune d'un porte-lame (30) et d'une lame (33).
  14. Kit de couteau rotatif selon la revendication 13, caractérisé en ce que les lames (33) présentent chacune un diamètre identique mais dont l'arête circonférentielle (331) de lame présente un tracé différent.
  15. Kit de couteau rotatif selon la revendication 13, caractérisé en ce que les porte-lames (30, 30', 30", 30"') sont de couleurs différentes pour les différentes lames (33).
  16. Kit de couteau rotatif selon l'une des revendications 13 à 15, caractérisé en ce qu'est présent en plus un récipient (60) à enficher pour les porte-lames (30', 30", 30"') non mis en œuvre dans le couteau rotatif (10) et non utilisés, récipient dans lequel les porte-lames (30', 30", 30"') sont tenus de telle manière que la lame respective (33) soit masquée par rapport à l'extérieur.
EP20182874.6A 2019-07-29 2020-06-29 Couteau rotatif pourvu de lame interchangeable Active EP3771534B1 (fr)

Applications Claiming Priority (1)

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DE202019104152.8U DE202019104152U1 (de) 2019-07-29 2019-07-29 Rollschneider mit auswechselbarer Klinge

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EP3771534A1 EP3771534A1 (fr) 2021-02-03
EP3771534B1 true EP3771534B1 (fr) 2021-11-10

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US (1) US11400612B2 (fr)
EP (1) EP3771534B1 (fr)
CN (1) CN112301718B (fr)
DE (1) DE202019104152U1 (fr)
ES (1) ES2906199T3 (fr)

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DE202019104152U1 (de) * 2019-07-29 2019-08-05 William Prym Gmbh & Co. Kg Rollschneider mit auswechselbarer Klinge

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RU2020123907A (ru) 2022-01-20
ES2906199T3 (es) 2022-04-13
CN112301718B (zh) 2023-07-11
EP3771534A1 (fr) 2021-02-03
US20210031392A1 (en) 2021-02-04
DE202019104152U1 (de) 2019-08-05
US11400612B2 (en) 2022-08-02
RU2020123907A3 (fr) 2022-01-20
CN112301718A (zh) 2021-02-02

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