EP0173330A1 - Cutter for sectioning a tape - Google Patents

Cutter for sectioning a tape Download PDF

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Publication number
EP0173330A1
EP0173330A1 EP85110872A EP85110872A EP0173330A1 EP 0173330 A1 EP0173330 A1 EP 0173330A1 EP 85110872 A EP85110872 A EP 85110872A EP 85110872 A EP85110872 A EP 85110872A EP 0173330 A1 EP0173330 A1 EP 0173330A1
Authority
EP
European Patent Office
Prior art keywords
support
movable blade
knife
window
knife 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.)
Granted
Application number
EP85110872A
Other languages
German (de)
French (fr)
Other versions
EP0173330B1 (en
Inventor
Jacques Peyre
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.)
SMH Alcatel SA
Original Assignee
SMH Alcatel SA
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 SMH Alcatel SA filed Critical SMH Alcatel SA
Publication of EP0173330A1 publication Critical patent/EP0173330A1/en
Application granted granted Critical
Publication of EP0173330B1 publication Critical patent/EP0173330B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • B26D1/01—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 involving a cutting member which does not travel with the work
    • B26D1/12—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/38—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member
    • B26D1/385—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member for thin material, e.g. for sheets, strips or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/404—By means to misalign aligned apertured tools
    • Y10T83/416—Rotary relative movement solely about a single pivot
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8772—One tool edge of tool pair encompasses work [e.g., wire cutter]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8798—With simple oscillating motion only
    • Y10T83/8817—Axially entending cutting edge
    • Y10T83/8818—Axially progressing cut

Definitions

  • the present invention relates to a knife for removing successive labels from a tape, in particular intended to equip an automatic label dispenser in a postal franking machine.
  • Such a knife has a movable blade actuated in front of a fixed blade mounted on a support, to come occupy a closed position, for cutting the ribbon and an open position for the passage of the ribbon over a length of label.
  • the control of such a knife, applied to the movable blade can be ensured from a rotary shaft by a coupling system of the connecting rod-crank type between the shaft and the movable blade.
  • the present invention aims to allow relative mounting of the blades very simple and without play in time during the actuation in closing of the movable blade on the fixed blade.
  • the present invention relates to a knife for cutting a ribbon, with a movable blade of section in the shape of a circular segment actuable in front of a fixed blade carried by a first support, by a coupling mechanism between said movable blade and a rotary shaft.
  • said first support is of U-shaped section with a semicircular bottom internally and has a first longitudinal window cutting its bottom and a groove open laterally on the window in its inner face for housing the fixed blade, and in that it further comprises an auxiliary support having substantially the shape of a gutter, with a semicircular bottom internally cut by a second window and with edges s' engaging between the branches of the U of said first support, said first support and said auxiliary support defining between them a substantially cylindrical housing for ladi the movable blade actuated to close off said first window when the knife is closed, and to come from the same side of said first and second windows without closing them when the knife is open, and latching means for maintaining the pressure of the support auxiliary and said first support allowing the rotation movement without axial play of the movable blade in his home.
  • said movable blade is of increasing section from one of its ends to the other.
  • said movable blade is mounted on a support, called a second support, the movable blade being assembled by its ends on its support, forming with it two end rings for centering and for longitudinal positioning in said cylindrical housing and being between the rings distant from its support.
  • Said second support is of section in circular sector.
  • Said auxiliary support has hooking lugs bordering it externally, being offset from the gutter it forms, and the first support of the complementary lugs on its external faces, for their snap-fastening.
  • the movable blade is actuated by a rod-crank assembly ensuring coupling with said rotary shaft.
  • the designated knife under the reference 1 comprises a fixed blade 2 and a movable blade 3.
  • the fixed blade is of rectangular section, the movable blade of semi-circular section.
  • the movable blade is driven in front of the fixed blade, to allow a free passage for a ribbon between them (figure 2), at the opening of the knife, or to have their facing edges applied one against the other (figure 3) and come to section the aforementioned ribbon for the removal of a label, this ribbon not having been shown for the sake of clarity of the figures.
  • the fixed blade 2 is mounted on a support 4, called the first support.
  • the support 4 is shown alone in FIG. 4, corresponding to a bottom view in section of FIG. 1.
  • the support 4 has in section the general shape of a U whose bottom 40 is internally semi-circular. It has a longitudinal window 41 which cuts the bottom of the U in the middle; this window is of length at least equal to the width of the ribbon, it has one of its edges flared towards the inside of the knife. It also has a longitudinal groove 42 in its inner face, projecting slightly on either side of the window 41 and open laterally on the other edge of the window 41. This groove 42 constitutes the housing of the fixed blade of restangular section .
  • the branches 43 of its U section carry externally a series of lugs 44.
  • the bottom of the U internally has a groove 45. This groove 45 is intended to ensure the proper positioning of the movable blade.
  • the movable blade 3 is mounted on its own support 5, called the second support; their mounting will be described below with reference to FIGS. 5 to 8. They constitute an overall assembly of generally cylindrical shape while being in contact with each other over at least the width of the strip.
  • This assembly carries at one end an actuating rod 50 extending perpendicular to the blade 3 and its support 5 and having an oblong opening 51.
  • the movable blade 3 and its support 5 are held positioned against the bottom of the first support 4 by an auxiliary support 6 with which it defines a substantially cylindrical housing 7.
  • This auxiliary support 6 has substantially the shape of a gutter with an internally semicircular bottom 60 and edges 61 which engage. between the ends of the branches 43 of the first U-shaped support 4.
  • the bottoms 40 and 60 facing each other and with the same radius of the supports 4 and 6 define between the housing 7.
  • It also has a longitudinal window 62 cutting its bottom in the middle; this window is opposite window 41 with which it communicates in the knife through the gap 70 between the movable blade 3 and its support 5, when the knife is open (FIG. 2).
  • This auxiliary support 6 is further bordered laterally, on each side, by a series of hooking lugs 64 on the lugs 44 of the first support 4. These lugs 64 are offset from the lateral edges of the gutter defined by the auxiliary support. Snapped onto the lugs 44, they hold the moving blade assembly 3 and its support 5 under pressure in the housing 7 and consequently avoid axial play of this assembly opposite the fixed blade 2.
  • this auxiliary support 6 forms externally on its bottom ribs 65 bordering the window 62 and ribs 66 on which bear the hooking lugs. These ribs mechanically reinforce the auxiliary support; the ribs 65 increasing the depth of the window 62 also allow better guidance of the ribbon.
  • the support 4 of the fixed blade, the support 5 of the movable blade and the auxiliary support 6 are advantageously made of a plastic material and obtained from molding.
  • the ends of the branches of the U of the support 4 are held on the lateral edges of the gutter and anchored in the lugs of the auxiliary support 6.
  • the support 4 is therefore made non-deformable.
  • the movable blade 3 has a circular segment section.
  • the section is increasing from one of its ends, on the actuating rod side 50 belonging to its support 5, to the other, as it appears in the two sections which are given in FIGS. 6 and 7 and in Figure 7 by its flat face 30 slightly inclined to the horizontal.
  • This movable blade with flat face inclined on the horizontal and therefore by compared to the fixed blade allows a progressive cutting of the ribbon according to its width.
  • the movable blade 3 has at its ends two legs 31, 32 for mounting on the support 5. These legs project above the flat face 30 of the movable blade. They are of different height, denoted h1 and h2 in FIGS. 6 and 7, by catching up with the inclination of the planar face 30. They are further profiled as illustrated in the figures by each defining a terminal wheelbase 33 of substantially section rectangular, one of the rounded sides of which partially follows the semi-circular edge of the blade.
  • the support 5 is, over the length of the movable blade 3 which is between its two legs 31 and 32, of section in circular sector. It ends on one side by defining a ring 52, of the same radius and of the same axis as the circular sector, having a notch 53 with a rectangular bottom open on its periphery. It also has a groove 54 adjacent to the ring 52, formed on the flat faces of the section support in circular sector. This groove 54 and the notch 53 receive the tab 32 with its end wheelbase, so as to form a solid ring together.
  • the ring 52 also carries two pins, or ribs 55 on its periphery, these pins 55 are inserted in the groove 45 of the support 4 of the fixed blade for the precise longitudinal positioning of the movable blade and its support in the housing 7 .
  • the support 5 ends by defining a longer ring 56 of which a part, the innermost, has a notch 57, similar to the notch 53 and is bordered by a groove 58, similar to the groove 54 , for the maintenance of the other tab 31 and its end wheelbase, and the other end portion of which carries the rod 50 after molding with the assembly of the support 5.
  • the mounting of the blade on its support is thus made very stable.
  • the flat face of the movable blade 3 is, with its inclination, substantially parallel to one of the flat faces of circular sector ( Figures 2 and 3).
  • the interval 70 between them is thus of width close to that of the window 41 of the support 4, on the side of this window 41, and opens very widely by widening on the side of the window 62 in the support 6. This wide opening of the passage 70 towards the window 62, allows the maintenance of a free passage of the tape at the outlet of the window 62 when the knife is open.
  • FIG. 9 there is illustrated the knife 1 coupled to a rotary shaft 8 for its control.
  • This coupling is of the connecting rod-crank type and is constituted by an end ring 80 on the shaft 8 having an eccentric pin 81 engaged in the window 51 of the rod 50 of the movable blade support 3.
  • the rod 50 has been lengthened compared to the representations of the preceding figures for the clarity of the drawing.
  • the knife is actuated in closing and returns to its open position.

Abstract

Ce couteau est à lame (3) mobile semi-circulaire montée avec son support (5) dans le fond semi-circulaire intérieurement du support (4) de la lame fixe (2), de section en U, et maintenue dans le support de la lame fixe par un support auxiliaire (6) présentant une forme de gouttière à fond (60) intérieurement semi-circulaire et à bords (61) s'encastrant sous les branches (43) du support de lame fixe et ayant des moyens d'encliquetage (64) à pression sur les faces extérieures des branches du premier support. Ce couteau équipe avantageusement des distributeurs d'étiquettes pour machine d'affranchissement postal.This knife has a semi-circular mobile blade (3) mounted with its support (5) in the semi-circular bottom internally of the support (4) of the fixed blade (2), of U-shaped section, and held in the support of the blade fixed by an auxiliary support (6) having a shape of gutter with bottom (60) internally semi-circular and with edges (61) fitting under the branches (43) of the fixed blade support and having means of snap-fastening (64) on the outside of the arms of the first support. This knife is advantageously fitted to label distributors for postal franking machines.

Description

La présente invention porte sur un couteau pour le prélèvement d'étiquettes successives sur un ruban, en particulier destiné à équiper un distributeur automatique d'étiquettes dans une machine d'affranchissement postal.The present invention relates to a knife for removing successive labels from a tape, in particular intended to equip an automatic label dispenser in a postal franking machine.

Un tel couteau est à lame mobile actionnée devant une lame fixe montée sur un support, pour venir occuper une position de fermeture, pour le sectionnement du ruban et une position d'ouverture pour le passage du ruban sur une longueur d'étiquette. La commande d'un tel couteau, appliquée à la lame mobile, peut être assurée à partir d'un arbre rotatif par un système de couplage du type bielle-manivelle entre l'arbre et la lame mobile.Such a knife has a movable blade actuated in front of a fixed blade mounted on a support, to come occupy a closed position, for cutting the ribbon and an open position for the passage of the ribbon over a length of label. The control of such a knife, applied to the movable blade, can be ensured from a rotary shaft by a coupling system of the connecting rod-crank type between the shaft and the movable blade.

La présente invention a pour but de permettre un montage relatif des lames très simple et sans jeu dans le temps au cours de l'actionnement en fermeture de la lame mobile sur la lame fixe.The present invention aims to allow relative mounting of the blades very simple and without play in time during the actuation in closing of the movable blade on the fixed blade.

La présente invention a pour objet un couteau pour le sectionnement d'un ruban, à lame mobile de section en forme de segment circulaire actionnable devant une lame fixe portée par un premier support, par un mécanisme de couplage entre ladite lame mobile et un arbre rotatif, pour permettre successivement le libre passage du ruban entre les lames et son sectionnement, caractérisé en ce que ledit premier support est de section en U à fond semi-circulaire intérieurement et présente une première fenêtre longitudinale coupant son fond et une rainure ouverte latéralement sur la fenêtre dans sa face intérieure pour le logement de la lame fixe, et en ce qu'il comporte, en outre, un support auxiliaire ayant sensiblement une forme de gouttière, à fond semi-circulaire intérieurement coupé par une seconde fenêtre et à bords s'engageant entre les branches du U dudit premier support, ledit premier support et ledit support auxiliaire définissant entre eux un logement sensiblement cylindrique pour ladite lame mobile actionnée pour venir obturer ladite première fenêtre lorsque le couteau est fermé, et venir d'un même côté desdites première et seconde fenêtres sans les obturer lorsque le couteau est ouvert, et des moyens d'encliquetage pour le maintien à pression du support auxiliaire et dudit premier support permettant le déplacement en rotation sans jeu axial de la lame mobile dans son logement.The present invention relates to a knife for cutting a ribbon, with a movable blade of section in the shape of a circular segment actuable in front of a fixed blade carried by a first support, by a coupling mechanism between said movable blade and a rotary shaft. to successively allow the free passage of the ribbon between the blades and its sectioning, characterized in that said first support is of U-shaped section with a semicircular bottom internally and has a first longitudinal window cutting its bottom and a groove open laterally on the window in its inner face for housing the fixed blade, and in that it further comprises an auxiliary support having substantially the shape of a gutter, with a semicircular bottom internally cut by a second window and with edges s' engaging between the branches of the U of said first support, said first support and said auxiliary support defining between them a substantially cylindrical housing for ladi the movable blade actuated to close off said first window when the knife is closed, and to come from the same side of said first and second windows without closing them when the knife is open, and latching means for maintaining the pressure of the support auxiliary and said first support allowing the rotation movement without axial play of the movable blade in his home.

Selon une caractéristique de l'invention, ladite lame mobile est de section croissante de l'une de ses extrémités à l'autre.According to a characteristic of the invention, said movable blade is of increasing section from one of its ends to the other.

Selon une autre caractéristique de l'invention ladite lame mobile est montée sur un support, dit second support, la lame mobile étant assemblée par ses extrémités sur son support en formant avec lui deux bagues terminales de centrage et de positionnement longitudinal dans ledit logement cylindrique et étant entre les bagues distante de son support.According to another characteristic of the invention, said movable blade is mounted on a support, called a second support, the movable blade being assembled by its ends on its support, forming with it two end rings for centering and for longitudinal positioning in said cylindrical housing and being between the rings distant from its support.

Ledit second support est de section en secteur circulaire.Said second support is of section in circular sector.

Ledit support auxiliaire présente des pattes d'accrochage le bordant extérieurement en étant décalées de la gouttière qu'il forme et le premier support des ergots complémentaires sur ses faces extérieures, pour leur encliquetage à pression.Said auxiliary support has hooking lugs bordering it externally, being offset from the gutter it forms, and the first support of the complementary lugs on its external faces, for their snap-fastening.

La lame mobile est actionnée par un ensemble bielle-manivelle assurant le couplage avec ledit arbre rotatif.The movable blade is actuated by a rod-crank assembly ensuring coupling with said rotary shaft.

D'autres caractéristiques et les avantages de la présente invention ressortiront de la description d'un exemple de réalisation, non limitatif, illustré dans les dessins ci-annexés. Dans ces dessins :

  • - la figure 1 représente le couteau selon l'invention, vu de face et partiellement coupé,
  • - la figure 2 est une vue en coupe du couteau, effectuée selon la ligne II-II de la figure 1, illustrant le couteau ouvert,
  • - la figure 3 est la vue en coupe du couteau donnée selon la ligne III-III de la figure 1, mais l'illustrant en cours de fermeture,
  • - la figure 4 est une vue de dessous en coupe du support de la lame fixe du couteau,
  • - la figure 5 est une vue éclatée représentant de face la lame mobile du couteau et son support,
  • - les figures 6 et 7 sont deux vues en coupe selon la ligne VI-VI et la ligne VII-VII de la figure 5, respectivement,
  • - la figure 8 est une vue de face de la lame mobile sur son support et
  • - la figure 9 représente le couteau selon l'invention vu de face et partiellement coupé, couplé à son arbre de commande.
Other characteristics and advantages of the present invention will emerge from the description of an exemplary embodiment, without limitation, illustrated in the attached drawings. In these drawings:
  • FIG. 1 represents the knife according to the invention, seen from the front and partially cut,
  • FIG. 2 is a sectional view of the knife, taken along line II-II of FIG. 1, illustrating the open knife,
  • FIG. 3 is the sectional view of the knife given along line III-III of FIG. 1, but illustrating it during closing,
  • FIG. 4 is a bottom view in section of the support of the fixed blade of the knife,
  • FIG. 5 is an exploded view showing from the front the movable blade of the knife and its support,
  • FIGS. 6 and 7 are two sectional views along line VI-VI and line VII-VII of FIG. 5, respectively,
  • FIG. 8 is a front view of the movable blade on its support and
  • - Figure 9 shows the knife according to the invention seen from the front and partially cut, coupled to its control shaft.

En regard des figures 1, 2, 3 et 4 on voit que le couteau désigné sous la référence 1 comporte une lame fixe 2 et une lame mobile 3.With reference to Figures 1, 2, 3 and 4 we see that the designated knife under the reference 1 comprises a fixed blade 2 and a movable blade 3.

La lame fixe est de section rectangulaire, la lame mobile de section semi-circulaire. La lame mobile est entraînée devant la lame fixe, pour laisser un libre passage pour un ruban entre elles (figure 2), à l'ouverture du couteau, ou avoir leurs l'arêtes en regard appliquées l'une contre l'autre (figure 3) et venir sectionner le ruban précité pour le prélèvement d'une étiquette, ce ruban n'ayant pas été représenté pour une grande clarté des figures.The fixed blade is of rectangular section, the movable blade of semi-circular section. The movable blade is driven in front of the fixed blade, to allow a free passage for a ribbon between them (figure 2), at the opening of the knife, or to have their facing edges applied one against the other (figure 3) and come to section the aforementioned ribbon for the removal of a label, this ribbon not having been shown for the sake of clarity of the figures.

La lame fixe 2 est montée sur un support 4, dit premier support. Le support 4 est représenté seul dans la figure 4, correspondant à une vue de dessous en coupe de la figure 1.The fixed blade 2 is mounted on a support 4, called the first support. The support 4 is shown alone in FIG. 4, corresponding to a bottom view in section of FIG. 1.

Le suppport 4 a en section la forme générale d'un U dont le fond 40 est intérieurement semi-circulaire. Il présente une fenêtre longitudinale 41 qui coupe le fond du U en son milieu ; cette fenêtre est de longueur au moins égale à la largeur du ruban, elle a l'un de ses bords évasé vers l'intérieur du couteau. Il présente également une rainure longitudinale 42 dans sa face intérieure, débordant légèrement de part et d'autre de la fenêtre 41 et ouverte latéralement sur l'autre bord de la fenêtre 41. Cette rainure 42 constitue le logement de la lame fixe de section restangulaire. Les branches 43 de son U de section portent extérieurement une série d'ergots 44. En outre, à l'une de ses extrémités, le fond du U présente intérieurement une gorge 45. Cette gorge 45 est destinée à assurer le positionnement convenable de la lame mobile.The support 4 has in section the general shape of a U whose bottom 40 is internally semi-circular. It has a longitudinal window 41 which cuts the bottom of the U in the middle; this window is of length at least equal to the width of the ribbon, it has one of its edges flared towards the inside of the knife. It also has a longitudinal groove 42 in its inner face, projecting slightly on either side of the window 41 and open laterally on the other edge of the window 41. This groove 42 constitutes the housing of the fixed blade of restangular section . The branches 43 of its U section carry externally a series of lugs 44. In addition, at one of its ends, the bottom of the U internally has a groove 45. This groove 45 is intended to ensure the proper positioning of the movable blade.

La lame mobile 3 est montée sur son propre support 5, dit second support ; leur montage sera décrit ci-après en regard des figures 5 à 8. Ils constituent un ensemble global de forme générale cylindrique en étant sans contact entre eux sur au moins la largeur du ruban. Cet ensemble porte à une extrémité une biellette d'actionnement 50 s'étendant perpendiculairement à la lame 3 et son support 5 et présentant une ouverture oblongue 51.The movable blade 3 is mounted on its own support 5, called the second support; their mounting will be described below with reference to FIGS. 5 to 8. They constitute an overall assembly of generally cylindrical shape while being in contact with each other over at least the width of the strip. This assembly carries at one end an actuating rod 50 extending perpendicular to the blade 3 and its support 5 and having an oblong opening 51.

La lame mobile 3 et son support 5 sont maintenus positionnés contre le fond du premier support 4 par un support auxiliaire 6 avec lequel il définit un logement sensiblement cylindrique 7.The movable blade 3 and its support 5 are held positioned against the bottom of the first support 4 by an auxiliary support 6 with which it defines a substantially cylindrical housing 7.

Ce support auxiliaire 6 a sensiblement la forme d'une gouttière à fond 60 intérieurement semi-circulaire et à bords 61 venant s'engager entre les extrémités des branches 43 du premier support 4 en U. Les fonds 40 et 60 en vis-à-vis et de même rayon des supports 4 et 6 définissent entre le logement 7. Il présente, également une fenêtre longitudinale 62 coupant son fond en son milieu ; cette fenêtre est en regard de la fenêtre 41 avec laquelle elle communique dans le couteau par l'intervalle 70 entre la lame mobile 3 et son support 5, lorsque le couteau est ouvert (figure 2).This auxiliary support 6 has substantially the shape of a gutter with an internally semicircular bottom 60 and edges 61 which engage. between the ends of the branches 43 of the first U-shaped support 4. The bottoms 40 and 60 facing each other and with the same radius of the supports 4 and 6 define between the housing 7. It also has a longitudinal window 62 cutting its bottom in the middle; this window is opposite window 41 with which it communicates in the knife through the gap 70 between the movable blade 3 and its support 5, when the knife is open (FIG. 2).

Ce support auxiliaire 6 est en outre bordé latéralement, de chaque côté, par une série de pattes d'accrochage 64 sur les ergots 44 du premier support 4. Ces pattes 64 sont décalées des bords latéraux de la gouttière que définit le support auxiliaire. Encliquetées sur les ergots 44, elles assurent un maintien avec pression de l'ensemble lame mobile 3 et son support 5 dans le logement 7 et évitent en conséquence un jeu axial de cet ensemble en regard de la lame fixe 2.This auxiliary support 6 is further bordered laterally, on each side, by a series of hooking lugs 64 on the lugs 44 of the first support 4. These lugs 64 are offset from the lateral edges of the gutter defined by the auxiliary support. Snapped onto the lugs 44, they hold the moving blade assembly 3 and its support 5 under pressure in the housing 7 and consequently avoid axial play of this assembly opposite the fixed blade 2.

On note en outre que ce support auxiliaire 6 forme extérieurement sur son fond des nervures 65 bordant la fenêtre 62 et des nervures 66 sur lesquelles portent les pattes d'accrochage. Ces nervures renforcent mécaniquement le support auxiliaire ;les nervures 65 accroissant la profondeur de la fenêtre 62 permettent en outre un meilleur guidage du ruban.It is further noted that this auxiliary support 6 forms externally on its bottom ribs 65 bordering the window 62 and ribs 66 on which bear the hooking lugs. These ribs mechanically reinforce the auxiliary support; the ribs 65 increasing the depth of the window 62 also allow better guidance of the ribbon.

Le support 4 de la lame fixe, le support 5 de la lame mobile et le support auxiliaire 6 sont avantageusement réalisés en une matière plastique et issus de moulage. Dans ce montage du support auxiliaire 6 sur le premier support 4 de la lame fixe, les extrémités des branches du U du support 4 sont maintenues sur les bords latéraux de la gouttière et ancrés dans les pattes d'accrochage du support auxiliaire 6. Le support 4 est donc rendu indéformable.The support 4 of the fixed blade, the support 5 of the movable blade and the auxiliary support 6 are advantageously made of a plastic material and obtained from molding. In this mounting of the auxiliary support 6 on the first support 4 of the fixed blade, the ends of the branches of the U of the support 4 are held on the lateral edges of the gutter and anchored in the lugs of the auxiliary support 6. The support 4 is therefore made non-deformable.

Dans les figures 5 à 7 on a illustré la lame mobile 3 et son support 5 ; dans la figure 8 ils sont illustrés assemblés.In Figures 5 to 7 there is illustrated the movable blade 3 and its support 5; in figure 8 they are illustrated assembled.

La lame mobile 3 a une section en segment circulaire. La section est croissante de l'une de ses extrémités, côté biellette 50 d'actionnement appartenant à son support 5, à l'autre, ainsi qu'il apparait dans les deux coupes qui en sont données dans les figures 6 et 7 et dans la figure 7 par sa face plane 30 légèrement inclinée sur l'horizontale. Cette lame mobile à face plane inclinée sur l'horizontale et donc par rapport à la lame fixe permet une coupe progressive du ruban selon sa largeur.The movable blade 3 has a circular segment section. The section is increasing from one of its ends, on the actuating rod side 50 belonging to its support 5, to the other, as it appears in the two sections which are given in FIGS. 6 and 7 and in Figure 7 by its flat face 30 slightly inclined to the horizontal. This movable blade with flat face inclined on the horizontal and therefore by compared to the fixed blade allows a progressive cutting of the ribbon according to its width.

La lame mobile 3 présente à ses extrémités deux pattes 31, 32 pour son montage sur le support 5. Ces pattes débordent au dessus la face plane 30 de la lame mobile. Elles sont de hauteur différente, notée h1 et h2 dans les figures 6 et 7, en rattrappant l'inclinaison de la face plane 30. Elles sont en outre profilées ainsi qu'illustré dans les figures en définissant chacune un empattement terminal 33 de section sensiblement rectangulaire dont l'un des côtés arrondi suit partiellement le bord semi circulaire de la lame.The movable blade 3 has at its ends two legs 31, 32 for mounting on the support 5. These legs project above the flat face 30 of the movable blade. They are of different height, denoted h1 and h2 in FIGS. 6 and 7, by catching up with the inclination of the planar face 30. They are further profiled as illustrated in the figures by each defining a terminal wheelbase 33 of substantially section rectangular, one of the rounded sides of which partially follows the semi-circular edge of the blade.

Le support 5 est, sur la longueur de la lame mobile 3 qui est comprise entre ses deux pattes 31 et 32, de section en secteur circulaire. Il se termine d'un côté en définissant une bague 52, de même rayon et de même axe que le secteur circulaire, présentant une échancrure 53 à fond rectangulaire ouverte sur sa périphérie. Il présente aussi une rainure 54 adjacente à la bague 52, formée sur les faces planes du support de section en secteur circulaire. Cette rainure 54 et l'échancrure 53 reçoivent la patte 32 avec son empattement terminal, de manière à former ensemble une bague pleine. La bague 52 porte aussi deux ergots, ou nervures 55 sur sa périphérie, ces ergots 55 viennent s'insérer dans la gorge 45 du support 4 de la lame fixe pour le positionnement longitudinal précis de la lame mobile et de son support dans le logement 7.The support 5 is, over the length of the movable blade 3 which is between its two legs 31 and 32, of section in circular sector. It ends on one side by defining a ring 52, of the same radius and of the same axis as the circular sector, having a notch 53 with a rectangular bottom open on its periphery. It also has a groove 54 adjacent to the ring 52, formed on the flat faces of the section support in circular sector. This groove 54 and the notch 53 receive the tab 32 with its end wheelbase, so as to form a solid ring together. The ring 52 also carries two pins, or ribs 55 on its periphery, these pins 55 are inserted in the groove 45 of the support 4 of the fixed blade for the precise longitudinal positioning of the movable blade and its support in the housing 7 .

De l'autre côté, le support 5 se termine en définissant une bague plus longue 56 dont une partie, la plus intérieure, présente une échancrure 57, analogue à l'échancrure 53 et est bordée par une rainure 58, analogue à la rainure 54, pour le maintien de l'autre patte 31 et son embattement terminal, et dont l'autre partie terminale porte la biellette 50 issue de moulage avec l'ensemble du support 5.On the other side, the support 5 ends by defining a longer ring 56 of which a part, the innermost, has a notch 57, similar to the notch 53 and is bordered by a groove 58, similar to the groove 54 , for the maintenance of the other tab 31 and its end wheelbase, and the other end portion of which carries the rod 50 after molding with the assembly of the support 5.

Le montage de la lame sur son support est ainsi rendu très stable. Sur son support, la face plane de la lame mobile 3 est, à son inclinaison près, sensiblement parallèle à l'une des faces planes de secteur circulaire (figures 2 et 3). L'intervalle 70 entre eux est ainsi de largeur voisine de celle de la fenêtre 41 du support 4, du côté de cette fenêtre 41, et s'ouvre très largement en s'évasant du côté de la fenêtre 62 dans le support 6. Cette large ouverture du passage 70 vers la fenêtre 62, permet le maintien d'un libre passage du ruban à la sortie de la fenêtre 62 lorsque le couteau est ouvert.The mounting of the blade on its support is thus made very stable. On its support, the flat face of the movable blade 3 is, with its inclination, substantially parallel to one of the flat faces of circular sector (Figures 2 and 3). The interval 70 between them is thus of width close to that of the window 41 of the support 4, on the side of this window 41, and opens very widely by widening on the side of the window 62 in the support 6. This wide opening of the passage 70 towards the window 62, allows the maintenance of a free passage of the tape at the outlet of the window 62 when the knife is open.

Dans la figure 9, on a illustré le couteau 1 couplé à un arbre rotatif 8 pour sa commande. Ce couplage est du type bielle-manivelle et est constitué par une bague terminale 80 sur l'arbre 8 présentant un tenon excentré 81 engagé dans la fenêtre 51 de la biellette 50 du support de lame mobile 3. Dans cette figure 9, la biellette 50 a été allongée par rapport aux représentations des figures précédentes pour la clarté du dessin. A chaque tour complet de l'arbre, le couteau est actionné en fermeture et reprend sa position d'ouverture.In Figure 9, there is illustrated the knife 1 coupled to a rotary shaft 8 for its control. This coupling is of the connecting rod-crank type and is constituted by an end ring 80 on the shaft 8 having an eccentric pin 81 engaged in the window 51 of the rod 50 of the movable blade support 3. In this FIG. 9, the rod 50 has been lengthened compared to the representations of the preceding figures for the clarity of the drawing. At each complete revolution of the shaft, the knife is actuated in closing and returns to its open position.

L'invention a été décrite en regard de l'exemple de réalisation illustré ; il est évident que sans sortir du cadre de cette invention, on pourra y apporter des modifications de détail et/ou remplacer certains moyens par d'autres moyens équivalents.The invention has been described with reference to the illustrated embodiment; it is obvious that without departing from the scope of this invention, it will be possible to make modifications to it in detail and / or to replace certain means by other equivalent means.

Claims (8)

1/ Couteau pour le sectionnement d'un ruban, à lame mobile de section en forme de segment circulaire actionnable devant une lame fixe portée par un premier support, par un mécanisme de couplage entre ladite lame mobile et un arbre rotatif, pour permettre successivement le libre passage du ruban entre les lames et son sectionnement, caractérisé en ce que ledit premier support (4) est de section en U à fond (40) semi-circulaire intérieurement et présente une première fenêtre (41) longitudinale coupant son fond et une rainure (42) ouverte latéralement sur la fenêtre dans sa face intérieure, pour le logement de ladite lame fixe (2), et en ce qu'il comporte, en outre, un support auxiliaire (6) ayant sensiblement une forme de gouttière, à fond (60) semi-circulaire intérieurement coupé par une seconde fenêtre (62) et à bords (61) s'engageant entre les branches (43) du U dudit premier support, ledit premier support et ledit support auxiliaire définissant entre eux un logement (7) sensiblement cylindrique pour ladite lame mobile (3) actionnée pour venir obturer ladite première fenêtre lorsque le couteau (1) est fermé et venir d'un même côté desdites première et seconde fenêtres (41, 62) sans les obturer lorsque le couteau est ouvert, et des moyens d'encliquetage (64, 44) pour le maintien à pression du support auxiliaire et dudit premier support permettant le déplacement en rotation sans jeu axial de la lame mobile dans son logement..1 / Knife for cutting a ribbon, with a movable blade of section in the shape of a circular segment actuable in front of a fixed blade carried by a first support, by a coupling mechanism between said movable blade and a rotary shaft, to allow successively the free passage of the ribbon between the blades and its sectioning, characterized in that said first support (4) is of U-shaped section with a semicircular bottom (40) internally and has a first longitudinal window (41) cutting its bottom and a groove (42) open laterally on the window in its inner face, for housing said fixed blade (2), and in that it further comprises an auxiliary support (6) having substantially the shape of a gutter, fully (60) semicircular internally cut by a second window (62) and with edges (61) engaging between the branches (43) of the U of said first support, said first support and said auxiliary support defining between them a housing (7 ) substantially cylindrical for said movable blade (3) actuated to close said first window when the knife (1) is closed and to come on the same side of said first and second windows (41, 62) without closing them when the knife is open, and latching means (64, 44) for keeping the auxiliary support and said first support under pressure, allowing the movable blade to rotate without axial play in its housing. 2/ Couteau selon la revendication 1, caractérisé en ce que ladite lame mobile (3) porte deux bagues terminales (52, 56) de centrage dans son logement (7).2 / knife according to claim 1, characterized in that said movable blade (3) carries two end rings (52, 56) for centering in its housing (7). 3/ Couteau selon la revendication 2, caractérisé en ce que ledit premier support (4) présente intérieurement, à l'une de ses extrémités, une gorge (45) dans son fond, et en ce que l'une desdites bagues terminales (52) porte au moins un ergot (55), à sa périphérie, venant s'engager dans ladite gorge (45) pour le positionnement longitudinal de la lame mobile (3) dans son logement (7).3 / knife according to claim 2, characterized in that said first support (4) has internally, at one of its ends, a groove (45) in its bottom, and in that one of said end rings (52 ) carries at least one lug (55), at its periphery, engaging in said groove (45) for the longitudinal positioning of the movable blade (3) in its housing (7). 4/ Couteau selon l'une des revendications 2 et 3, caractérisé en ce que ladite lame mobile est montée sur un second support (5) avec lequel elle définit lesdites bagues terminales (52, 56) et sur lequel, entre lesdites bagues, elle s'étend en ménageant un intervalle (70) entre elle et ledit second support.4 / knife according to one of claims 2 and 3, characterized in that said movable blade is mounted on a second support (5) with which it defines said end rings (52, 56) and on which, between said rings, it extends by providing an interval (70) between it and said second support. 5/ Couteau selon la revendication 4, caractérisé en ce que ledit second support (5) a entre lesdites bagues une section en secteur circulaire. 6/ Couteau selon la revendication 5, caractérisé en ce que ladite lame mobile (3) a sa face plane (30) sensiblement parallèle à l'une des faces planes dudit second support (5), l'intervalle (70) étant ainsi ouvert largement en s'évasant, du côté de ladite seconde fenêtre (62).5 / knife according to claim 4, characterized in that said second support (5) has between said rings a circular sector section. 6 / knife according to claim 5, characterized in that said movable blade (3) has its flat face (30) substantially parallel to one of the flat faces of said second support (5), the gap (70) being thus opened widely flared, on the side of said second window (62). 7/ Couteau selon l'une des revendication 1 à 6, caractérisé en ce que ladite lame mobile est de section croissante de l'une de ses extrémités à l'autre.7 / knife according to one of claims 1 to 6, characterized in that said movable blade is of increasing section from one of its ends to the other. 8/ Couteau selon l'une des revendications 1 à 7, caractérisé en ce que lesdits moyens d'encliquetage comportent des pattes d'accrochage (64) bordant extérieurement ladite gouttière en étant décalées de ses bords latéraux (61) et des ergots complémentaires (44) sur les faces extérieures des branches du premier support en U.8 / knife according to one of claims 1 to 7, characterized in that said latching means comprise latching tabs (64) externally bordering said gutter being offset from its lateral edges (61) and complementary lugs ( 44) on the outer faces of the branches of the first U-shaped support. 9/ Couteau selon l'une des revendications 1 à 8, caractérisé en ce que lesdits moyens de couplage entre ladite lame mobile et ledit arbre rotatif (8) sont constitués par un ensemble bielle-manivelle (50, 81).9 / knife according to one of claims 1 to 8, characterized in that said coupling means between said movable blade and said rotary shaft (8) are constituted by a rod-crank assembly (50, 81).
EP85110872A 1984-08-31 1985-08-29 Cutter for sectioning a tape Expired EP0173330B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8413515A FR2569603B1 (en) 1984-08-31 1984-08-31 KNIFE FOR SECTIONING A TAPE
FR8413515 1984-08-31

Publications (2)

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EP0173330A1 true EP0173330A1 (en) 1986-03-05
EP0173330B1 EP0173330B1 (en) 1988-11-23

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EP85110872A Expired EP0173330B1 (en) 1984-08-31 1985-08-29 Cutter for sectioning a tape

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US (1) US4656903A (en)
EP (1) EP0173330B1 (en)
CA (1) CA1250518A (en)
DE (1) DE3566367D1 (en)
FR (1) FR2569603B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2662385A1 (en) * 1990-05-23 1991-11-29 Axiohm Device for cutting a strip of paper coming off a printer
GB2244947A (en) * 1990-06-14 1991-12-18 Kwok Hung Leung Cutting blades
EP0462851A2 (en) * 1990-05-23 1991-12-27 Axiohm Apparatus for transverse cutting of a paper web

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237898A (en) * 1992-11-20 1993-08-24 Check Technology Corporation Autotaper
US6869000B2 (en) 1994-08-08 2005-03-22 Synthes (U.S.A.) Apparatus for cutting bodies having a non-circular cross section

Citations (5)

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Publication number Priority date Publication date Assignee Title
FR401623A (en) * 1908-04-04 1909-09-06 Georg Bluen Cutting device for copying machines
US1849443A (en) * 1931-02-20 1932-03-15 Pitneybowes Postage Meter Co Paper cutting device
GB1032949A (en) * 1964-04-22 1966-06-15 Sig Schweiz Industrieges An improved cutting device
US4063481A (en) * 1976-10-12 1977-12-20 Union Carbide Corporation Rotary cutting device
US4412466A (en) * 1979-11-08 1983-11-01 Pitney Bowes Inc. Tubular knife

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US4493236A (en) * 1983-07-25 1985-01-15 Pitney Bowes Inc. Mailing machine tape knife
US4531437A (en) * 1983-10-24 1985-07-30 Rubbermaid Commercial Products Inc. Rotary needle and syringe destructor

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
FR401623A (en) * 1908-04-04 1909-09-06 Georg Bluen Cutting device for copying machines
US1849443A (en) * 1931-02-20 1932-03-15 Pitneybowes Postage Meter Co Paper cutting device
GB1032949A (en) * 1964-04-22 1966-06-15 Sig Schweiz Industrieges An improved cutting device
US4063481A (en) * 1976-10-12 1977-12-20 Union Carbide Corporation Rotary cutting device
US4412466A (en) * 1979-11-08 1983-11-01 Pitney Bowes Inc. Tubular knife

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2662385A1 (en) * 1990-05-23 1991-11-29 Axiohm Device for cutting a strip of paper coming off a printer
EP0462851A2 (en) * 1990-05-23 1991-12-27 Axiohm Apparatus for transverse cutting of a paper web
EP0462851A3 (en) * 1990-05-23 1992-05-27 Axiohm Apparatus for transverse cutting of a paper web
GB2244947A (en) * 1990-06-14 1991-12-18 Kwok Hung Leung Cutting blades

Also Published As

Publication number Publication date
EP0173330B1 (en) 1988-11-23
FR2569603B1 (en) 1986-09-05
FR2569603A1 (en) 1986-03-07
DE3566367D1 (en) 1988-12-29
CA1250518A (en) 1989-02-28
US4656903A (en) 1987-04-14

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