EP0398823A1 - Cutting device for a dispenser of wiping material in the form of a concertina-folded narrow strip - Google Patents

Cutting device for a dispenser of wiping material in the form of a concertina-folded narrow strip Download PDF

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Publication number
EP0398823A1
EP0398823A1 EP90420224A EP90420224A EP0398823A1 EP 0398823 A1 EP0398823 A1 EP 0398823A1 EP 90420224 A EP90420224 A EP 90420224A EP 90420224 A EP90420224 A EP 90420224A EP 0398823 A1 EP0398823 A1 EP 0398823A1
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EP
European Patent Office
Prior art keywords
rotation
toothed wheels
pairs
cam
cutting
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
EP90420224A
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German (de)
French (fr)
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EP0398823B1 (en
Inventor
Maurice Granger
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Individual
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Individual
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Publication date
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Publication of EP0398823A1 publication Critical patent/EP0398823A1/en
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Publication of EP0398823B1 publication Critical patent/EP0398823B1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
    • A47K10/32—Dispensers for paper towels or toilet-paper
    • A47K10/34—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means
    • A47K10/36—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices
    • A47K10/3656—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices with paper jam preventing devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
    • A47K10/32—Dispensers for paper towels or toilet-paper
    • A47K10/34—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means
    • A47K10/36—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices
    • A47K10/3631—The cutting devices being driven manually
    • A47K10/3643—The cutting devices being driven manually by pulling the paper
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
    • A47K10/32—Dispensers for paper towels or toilet-paper
    • A47K10/34—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means
    • A47K10/36—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices
    • A47K10/3631—The cutting devices being driven manually
    • A47K2010/365—Triggering mechanism for the blade
    • 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
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/4804—Single tool action drive
    • 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
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/483—With cooperating rotary cutter or backup
    • 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
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/483—With cooperating rotary cutter or backup
    • Y10T83/4844—Resiliently urged cutter or anvil member

Definitions

  • the object of the invention relates to the technical sector of devices for dispensing wiping materials of the paper, wadding, non-woven or other type.
  • the cutting device is constituted by two profiled metal blades with cutting edge mounted with elastic articulation between two driving couples of the folded material, at a determined point so that, by rotation of said couples , the blades are progressively superimposed from one end to the other, as the rotation progresses, remaining in permanent contact with pressure and in position substantially parallel to the axes of rotation of the pairs of toothed wheels during the entire duration of the cut to cut by shearing the folded strip of material introduced between said pairs and driven by manual traction on the strip protruding from the device causing the rotation of the couples.
  • the pusher member is a double articulation lever closely associated with a cam carried by the axis of rotation of one of the pairs of toothed wheels, said cam being profiled, and oriented angularly to first bend a spring connecting the lever to a fixed point between the rest position of the pairs of toothed wheels and the position where the cutting blades come into contact, then release the lever which can then act on the couple of toothed wheels opposite to that which carries the cam, in order to drive it in rotation.
  • the adjustable positioning of one of the cutting blades is obtained by a blade holder articulated on one of the pairs of toothed wheels; said blade holder having an opening in which can be moved in rotation an eccentric centered on said torque and acting on the blade holder.
  • the device consists essentially of a support (A) for fixing relative to any surface, of a reel holder element (B), of a closure cover (D) and of an interchangeable cassette (E ), carrying the mechanisms necessary for driving and cutting strips previously folded in accordion with projections (G1-G2) established additionally on the support (A) and on the reel holder (B) which also carries a means (H) return and conformation of the unrolled strip.
  • the cassette (E) laterally has grooves (E1) for sliding guide on slides fitted to the walls of the support (A) where it is locked automatically and released by manual action.
  • two pairs of coaxial toothed wheels (1-2) and (3-4) are mounted for free rotation intended for guiding and driving the folded strip upstream, and passing between the two couples.
  • the guide toothed wheels (1-3) with full teeth have a lower module than that of the drive toothed wheels (2-4). In this way, the guide toothed wheels mesh with each other without play, while the drive toothed wheels mesh with each other with a regular play allowing the passage without jamming of the folded strip.
  • the drive gear wheels have a rounded edge on the outside to facilitate engagement.
  • ment of the band when loading the device while the inside of the teeth is preferably with a rough surface, in particular on either side of notches (2a-4a) for passage of the cutting device, in order to '' ensure training without slipping after cutting the loose strip.
  • the cutting device consists of two metal blades (5 and 6) symbolized by broken lines in Figures 2, 3 and 4, it being understood that their mounting conforms to basic demand.
  • This member is constituted by a lever (20) articulated at (21) at the upper part of the rear wall of the cassette and extending laterally downwards outside a pair of toothed wheels, to be articulated at (22) to a push rod (23) extending in the direction of the other pair of toothed wheels.
  • the lever (20) has, at the axis of rotation of the nearest pair of toothed wheels, a projection (20a) carrying free rotation a roller or ball bearing (24) intended to cooperate in support with a cam ( 25) integral with said axis of rotation, this under the effect of a return spring (26) attached at (27) on the bottom of the cassette between the two pairs of toothed wheels and on a lower projection at the end ( 23a) of the push rod.
  • the launching spring (14) initially pre-tensioned between the eccentrics (15) ending the axes of rotation of the toothed wheel cuts is in this case attached to the cam (25) on a pair of toothed wheels and to an eccentric (15) on the other couple.
  • roller (24) is located at the highest point of the cam (25), and an overhanging pin (30 ) fixed on the rear face of the opposite pair of toothed wheels, rests on the profiled end (23b) of the rod which lowers against the spring (26).
  • the cam (25) has its notch (25a) opposite the roller (24) which engages therein.
  • the pin (30) passes in front of the rod (23) which under the effect of the spring (26) rises in position against the stop (29).
  • the rod (23) pushes the pin (30) until the latter escapes it.
  • This additional thrust force to that of the launching spring (14) makes it possible to avoid any braking or blocking of the cutting blades in contact even when the protruding strip is pulled too gently or irregularly.
  • the pusher member is preferably mounted to act on the pair of toothed wheels which carries the blade which is at the des known to each other when moving in contact, for best results.
  • cam (25) may have a stop bead after cutting to ensure complete detachment of the material drawn by reaction, it being understood that, as in the basic application, the adjustment of the blades as a function of the type of distributed material is designed to keep just after cutting a portion of uncut material allowing the next strip to overflow.
  • one of the blades preferably the one carried by the pair of toothed wheels associated with the cam (25) is mounted adjustable by a blade holder (31) articulated at (32 ) said couple.
  • a blade holder (31) articulated at (32 ) said couple Opposite the cam, an opening (31a) of the blade holder is crossed by an eccentric (33) centered at 34 on said torque.
  • a window (35) in the front wall of the cassette allows the passage of a tool of the screwdriver type with which the axis (34) is released and then the eccentric is rotated by a slot (33a) relative to the opening (31a) thereby causing the cutting blade to tilt forwards or backwards which varies the spacing with the other blade.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Control Of Cutting Processes (AREA)
  • Cosmetics (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Details Of Cutting Devices (AREA)
  • Detergent Compositions (AREA)

Abstract

This device is characterised in that it is associated with a pushing unit (20-23) acting when the two cutting blades (5,6) come into contact and release energy stored during the rotation of pairs of toothed wheels (1-2, 3-4); this additional energy being transmitted directly to one of the said pairs (1-2, 3-4) causing it to be driven into rotation. <IMAGE>

Description

Dispositif de coupe de matériaux d'essuyage stockés dans un appareil assurant leur distribution automatique sous la forme d'une bande étroite pliée en accordéon.Device for cutting wiping materials stored in an apparatus ensuring their automatic distribution in the form of a narrow strip folded in accordion.

L'objet de l'invention se rattache au secteur technique des appareils de distribution de matériaux d'essuyage du type papier, ouate, non tissés ou autres.The object of the invention relates to the technical sector of devices for dispensing wiping materials of the paper, wadding, non-woven or other type.

Selon la Demande de Brevet FR 89.03416 à la base, le dispositif de coupe est constitué par deux lames métalliques profilées à bord tranchant montées à articulation élastique entre deux couples d'entraînement du matériau plié, en un point déterminé pour que, par rotation desdits couples, les lames se superposent progressivement d'une extrémité à l'autre, au fur et à mesure de la rotation en restant en contact permanent avec pression et en position sensiblement parallèle aux axes de rotation des couples de roues dentées pendant toute la durée de la coupe pour trancher par cisaillement la bande pliée du matériau introduite entre lesdits couples et entraînés par traction manuelle sur la bande débordant de l'appareil provoquant la rotation des couples.According to Patent Application FR 89.03416 at the base, the cutting device is constituted by two profiled metal blades with cutting edge mounted with elastic articulation between two driving couples of the folded material, at a determined point so that, by rotation of said couples , the blades are progressively superimposed from one end to the other, as the rotation progresses, remaining in permanent contact with pressure and in position substantially parallel to the axes of rotation of the pairs of toothed wheels during the entire duration of the cut to cut by shearing the folded strip of material introduced between said pairs and driven by manual traction on the strip protruding from the device causing the rotation of the couples.

Avec ce dispositif, il peut se produire un freinage important, voir un blocage des lames de coupe en contact si l'on tire trop doucement sur la partie débordante. Pour vaincre cette résistance, il est nécessaire alors d'augmenter con­sidérablement l'effort de traction et il arrive que le matériau a distribuer se déchire sous cette force supplementaire.With this device, significant braking may occur, or even blockage of the cutting blades in contact if the protruding part is pulled too gently. To overcome this resistance, it is then necessary to considerably increase the tensile force and it happens that the material to be distributed tears under this additional force.

En fin de traction, lorsque les couples de roues dentées sont revenus à la position repos après la coupe, la bande de matériau reste coincée dans l'appareil, et ne sort pas sous ledit appareil pour être accessible en vue d'une nouvelle distribution. L'appareil est ainsi en panne.At the end of traction, when the pairs of cogwheels have returned to the rest position after cutting, the strip of material remains wedged in the device, and does not come out under said device to be accessible for a new distribution. The device is thus broken down.

Pour remédier à ces inconvénients, on propose d'associer au dispositif de coupe selon l'invention un organe pousseur agissant lorsque les deux lames de coupe arrivent en contact et libèrent une énergie emmagasinée pendant la rotation des cou­ples de roues dentées : cette énergie supplémentaire étant transmise directement à l'un desdits couples provoquant son entraînement en rotation.To overcome these drawbacks, it is proposed to associate with the cutting device according to the invention a pusher member acting when the two cutting blades come into contact and release stored energy during the rotation of the pairs of toothed wheels: this additional energy being transmitted directly to one of said couples causing its rotational drive.

Selon une autre caractéristique, l'organe pousseur est un levier à double articulation associé étroitement à une came portée par l'axe de rotation de l'un des couples de roues den­tées, ladite came étant profilée, et orientée angulairement pour d'abord bander un ressort reliant le levier à un point fi­xe entre la position repos des couples de roues dentées et la position où les lames de coupe arrivent en contact, puis libé­rer le levier qui peut alors agir sur le couple de roues den­tées opposé à celui qui porte la came, afin de l'entraîner en rotation.According to another characteristic, the pusher member is a double articulation lever closely associated with a cam carried by the axis of rotation of one of the pairs of toothed wheels, said cam being profiled, and oriented angularly to first bend a spring connecting the lever to a fixed point between the rest position of the pairs of toothed wheels and the position where the cutting blades come into contact, then release the lever which can then act on the couple of toothed wheels opposite to that which carries the cam, in order to drive it in rotation.

Selon l'invention, on a voulu également, comme cela a été prévu dans la revendication 8 de la Demande de Brevet FR 89.03416 à la base, régler la coupe en fonction du type de matériau d'essuyage utilisé.According to the invention, it was also desired, as provided in claim 8 of the Patent Application FR 89.03416 at the base, to adjust the cut according to the type of wiping material used.

Pour cela, on peut soit modifier l'écartement entre les couples de roues dentées, soit comme il ressort de l'invention faire varier la position d'une des lames de coupe par un monta­ge réglable en position par rapport à son couple de roues dentées.For this, it is possible either to modify the spacing between the pairs of toothed wheels, or as it appears from the invention to vary the position of one of the cutting blades by an assembly adjustable in position relative to its couple of toothed wheels. .

Selon une autre caractéristique, le positionnement réglable d'une des lames de coupe est obtenu par un porte-lame articulé sur un des couples de roues dentées ; ledit porte-lame présentant une ouverture dans laquelle peut être déplacé en rotation un excentrique axé sur ledit couple et agissant sur le porte-lame.According to another characteristic, the adjustable positioning of one of the cutting blades is obtained by a blade holder articulated on one of the pairs of toothed wheels; said blade holder having an opening in which can be moved in rotation an eccentric centered on said torque and acting on the blade holder.

Ces caractéristiques et d'autres encore ressortiront de la description qui suit.These characteristics and others will emerge from the description which follows.

Pour fixer l'objet de l'invention sans toutefois le limiter, dans les dessins annexés :

  • La figure 1 est une vue à caractère schématique illustrant un appareil selon la Demande à la base de distribution de matériau d'essuyage.
  • Les figures 2, 3 et 4 sont des vues arrière de la cassette interchangeable équipée de l'organe pousseur selon l'invention.
  • La figure 5 est une vue avant de la cassette inter­changeable équipée du moyen de réglage en position d'une des lames de coupe.
To fix the subject of the invention without however limiting it, in the appended drawings:
  • Figure 1 is a schematic view illustrating an apparatus according to the request to the base for dispensing wiping material.
  • Figures 2, 3 and 4 are rear views of the interchangeable cassette equipped with the pusher member according to the invention.
  • FIG. 5 is a front view of the interchangeable cassette fitted with the means for adjusting the position of one of the cutting blades.

Afin de rendre plus concret l'objet de l'invention, on le décrit maintenant sous forme non limitative de réalisation illustrée aux figures des dessins.In order to make the object of the invention more concrete, it is now described in nonlimiting form of embodiment illustrated in the figures of the drawings.

En se référant à la figure 1, on rappelle successive­ment les principaux composants de l'appareil illustré, étant entendu que le dispositif selon l'invention peut être combiné avec d'autres types d'appareils.Referring to Figure 1, we successively recall the main components of the illustrated device, it being understood that the device according to the invention can be combined with other types of devices.

L'appareil est constitué essentiellement d'un support (A) de fixation par rapport à une surface quelconque, d'un élé­ment (B) porte-bobine, d'un capot de fermeture (D) et d'une cas­sette interchangeable (E), portant les mécanismes nécessaires à l'entrainement et à la coupe de bandes précédemment pliées en accordéon par des saillies (G1-G2) établies complémentairement sur le support (A) et sur le porte-bobine (B) qui porte égale­ment un moyen (H) de renvoi et de conformation de la bande dé­roulée. La cassette (E) présente latéralement des rainures (E1) de guidage à coulissement sur des glissières équipant les parois du support (A) où elle est verrouillée de manière automatique et libérée par action manuelle.The device consists essentially of a support (A) for fixing relative to any surface, of a reel holder element (B), of a closure cover (D) and of an interchangeable cassette (E ), carrying the mechanisms necessary for driving and cutting strips previously folded in accordion with projections (G1-G2) established additionally on the support (A) and on the reel holder (B) which also carries a means (H) return and conformation of the unrolled strip. The cassette (E) laterally has grooves (E1) for sliding guide on slides fitted to the walls of the support (A) where it is locked automatically and released by manual action.

Entre les faces avant et arrière de la cassette, sont montés à rotation libre deux couples de roues dentées coaxiales (1-2) et (3-4) destinées au guidage et à l'entrainement de la bande pliée en amont, et passant entre les deux couples. A l'ar­rière, les roues dentées de guidage (1-3) à denture complète ont un module inférieur à celui des roues dentées d'entrainement (2-­4). De cette manière, les roues dentées de guidage engrènent entre elles sans jeu, tandis que les roues dentées d'entraine­ment engrènent entre elles avec un jeu régulier permettant le passage sans coincement de la bande pliée.Between the front and rear faces of the cassette, two pairs of coaxial toothed wheels (1-2) and (3-4) are mounted for free rotation intended for guiding and driving the folded strip upstream, and passing between the two couples. At the rear, the guide toothed wheels (1-3) with full teeth have a lower module than that of the drive toothed wheels (2-4). In this way, the guide toothed wheels mesh with each other without play, while the drive toothed wheels mesh with each other with a regular play allowing the passage without jamming of the folded strip.

D'autre part, les roues dentées d'entrainement présen­tent du côté extérieur une bordure arrondie facilitant l'engage­ ment de la bande au chargement de l'appareil, tandis que l'inté­rieur des dents est de préférence à surface rugueuse, en parti­culier de part et d'autre d'entailles (2a-4a) de passage du dis­positif de coupe, afin d'assurer l'entrainement sans glissement après la coupe de la bande détachée.On the other hand, the drive gear wheels have a rounded edge on the outside to facilitate engagement. ment of the band when loading the device, while the inside of the teeth is preferably with a rough surface, in particular on either side of notches (2a-4a) for passage of the cutting device, in order to '' ensure training without slipping after cutting the loose strip.

Le dispositif de coupe est constitué de deux lames métalliques (5 et 6) symbolisées par des traits interrompus aux figures 2, 3 et 4, étant entendu que leur montage est conforme à la demande de base.The cutting device consists of two metal blades (5 and 6) symbolized by broken lines in Figures 2, 3 and 4, it being understood that their mounting conforms to basic demand.

Selon une des caractéristiques de l'addition, afin d'assurer une coupe franche et fiable dans n'importe quelle po­sition de l'appareil et quelle que soit la force et la vitesse de traction manuelle sur la bande débordant sous l'appareil, on prévoit un organe pousseur associé aux mécanismes d'entrainement et de coupe.According to one of the characteristics of the addition, in order to ensure a clean and reliable cut in any position of the apparatus and whatever the force and the speed of manual traction on the strip projecting under the apparatus, provides a pusher member associated with the drive and cutting mechanisms.

Cet organe est constitué par un levier (20) articulé en (21) à la partie supérieure de la paroi arrière de la casset­te et s'étendant latéralement vers le bas à l'extérieur d'un couple de roues dentées, pour être articulé en (22) à une tige de poussée (23) s'étendant en direction de l'autre couple de roues dentées. Le levier (20) présente au niveau de l'axe de rotation du couple de roues dentées le plus proche, une avancée (20a) portant à rotation libre un galet ou roulement à billes (24) destiné à coopérer en appui avec une came (25) solidaire dudit axe de rotation, cela sous l'effet d'un ressort de rappel (26) attaché en (27) sur le fond de la cassette entre les deux couples de roues dentées et sur une saillie inférieure à l'ex­trémité (23a) de la tige de poussée.This member is constituted by a lever (20) articulated at (21) at the upper part of the rear wall of the cassette and extending laterally downwards outside a pair of toothed wheels, to be articulated at (22) to a push rod (23) extending in the direction of the other pair of toothed wheels. The lever (20) has, at the axis of rotation of the nearest pair of toothed wheels, a projection (20a) carrying free rotation a roller or ball bearing (24) intended to cooperate in support with a cam ( 25) integral with said axis of rotation, this under the effect of a return spring (26) attached at (27) on the bottom of the cassette between the two pairs of toothed wheels and on a lower projection at the end ( 23a) of the push rod.

Comme on le voit à la figure 2, au repos, le levier (20) et la tige (23) ainsi soumises au ressort (26) s'appliquent sur des saillies de butées (28-29) établies sur la paroi arrière de la cassette.As seen in Figure 2, at rest, the lever (20) and the rod (23) thus subjected to the spring (26) are applied to the projections of stops (28-29) established on the rear wall of the cassette.

Dans cette position de repos correspondant à la figure 2, la came (25) est orientée de telle sorte que le galet (24) s'appuie sur la partie la plus proche de l'axe, et le ressort (26) est sous tension.In this rest position corresponding to Figure 2, the cam (25) is oriented so that the roller (24) is supported on the part closest to the axis, and the spring (26) is energized.

A noter que le ressort de lancement (14) initialement pré-tendu entre les excentriques (15) terminant les axes de ro­tation des coupes de roues dentées, est dans ce cas attaché à la came (25) sur un couple de roues dentées et à un excentrique (15) sur l'autre couple.Note that the launching spring (14) initially pre-tensioned between the eccentrics (15) ending the axes of rotation of the toothed wheel cuts, is in this case attached to the cam (25) on a pair of toothed wheels and to an eccentric (15) on the other couple.

Lorsqu'on tire manuellement sur la bande pliée débor­dant de l'appareil en entrainant les couples de roues dentées et donc les lames de coupe qui y sont montées, la came (25) re­pousse le galet (24) et le levier (20) en bandant ainsi le res­sort (26) qui maintient la tige de poussée (23) plaquée contre sa butée (29).When the folded strip extending beyond the device is pulled manually by driving the pairs of toothed wheels and therefore the cutting blades mounted thereon, the cam (25) pushes the roller (24) and the lever (20) thus bandaging the spring (26) which keeps the push rod (23) pressed against its stop (29).

Lorsque les lames de coupe (5 et 6) sont en face l'une de l'autre (figure 3), le galet (24) est situé au point le plus haut de la came (25), et un pion débordant (30) fixé sur la face arrière du couple de roues dentées opposé, s'appuie sur l'extré­mité profilée (23b) de la tige qui s'abaisse à l'encontre du ressort (26).When the cutting blades (5 and 6) are opposite one another (Figure 3), the roller (24) is located at the highest point of the cam (25), and an overhanging pin (30 ) fixed on the rear face of the opposite pair of toothed wheels, rests on the profiled end (23b) of the rod which lowers against the spring (26).

Dès que les lames de coupe sont appliquées l'une con­tre l'autre par leur extrémité arrière, la came (25) présente son échancrure (25a) en face du galet (24) qui s'y engage. A cet instant, le pion (30) passe devant la tige (23) qui sous l'effet du ressort (26) remonte en position contre la butée (29). Ainsi, comme illustré à la figure 4, par détente du ressort (26), la tige (23) pousse le pion (30) jusqu'à ce que ce dernier lui échappe.As soon as the cutting blades are applied against one another by their rear end, the cam (25) has its notch (25a) opposite the roller (24) which engages therein. At this instant, the pin (30) passes in front of the rod (23) which under the effect of the spring (26) rises in position against the stop (29). Thus, as illustrated in FIG. 4, by relaxing the spring (26), the rod (23) pushes the pin (30) until the latter escapes it.

Cette force de poussée supplémentaire à celle du res­sort de lancement (14) permet d'éviter tout freinage ou blocage des lames de coupe en contact même lorsqu'on tire sur la bande débordante trop doucement ou irrégulièrement.This additional thrust force to that of the launching spring (14) makes it possible to avoid any braking or blocking of the cutting blades in contact even when the protruding strip is pulled too gently or irregularly.

La coupe ainsi réalisée est franche, on évite tout déchirement intempestif du matériau, et la bande suivante se présente toujours en débordement d'une valeur égale.The cut thus produced is straightforward, any untimely tearing of the material is avoided, and the following strip always presents itself with an overflow of equal value.

L'organe pousseur est de préférence monté pour agir sur le couple de roues dentées qui porte la lame qui est au des­ sus de l'autre au moment de leur déplacement en contact, pour obtenir les meilleurs résultats.The pusher member is preferably mounted to act on the pair of toothed wheels which carries the blade which is at the des known to each other when moving in contact, for best results.

A noter encore que la came (25) peut présenter un ta­lon d'arrêt après la coupe pour assurer le détachement complet du matériau tiré par réaction, étant entendu que comme dans la demande à la base, le réglage des lames en fonction du type de matériau distribué est conçu pour conserver juste après la coupe une partie de matériau non coupé permettant le débordement de la bande suivante.Note also that the cam (25) may have a stop bead after cutting to ensure complete detachment of the material drawn by reaction, it being understood that, as in the basic application, the adjustment of the blades as a function of the type of distributed material is designed to keep just after cutting a portion of uncut material allowing the next strip to overflow.

Selon une autre caractéristique de l'addition, on a voulu justement modifier de manière simple et rapide le posi­tionnement des lames de coupe, en particulier leurs positions relatives entres elles, en fonction du type de matériaux.According to another characteristic of the addition, it was precisely desired to modify in a simple and rapid manner the positioning of the cutting blades, in particular their relative positions between them, according to the type of materials.

Pour cela et comme illustré à la figure 5, l'une des lames, de préférence celle qui est portée par le couple de roues dentées associé à la came (25) est montée réglable par un porte-­lame (31) articulé en (32) audit couple. A L'opposé de la came une ouverture (31a) du porte-lame est traversée par un excen­trique (33) axé en 34 sur ledit couple. Lorsque le dispositif de coupe est en position repos, une fenêtre (35) de la paroi avant de la cassette permet le passage d'un outil du genre tournevis avec lequel on débloque l'axe (34) puis on fait tourner l'excen­trique par une fente (33a) par rapport à l'ouverture (31a) en provoquant ainsi le basculement en avant ou en arrière de la lame de coupe ce qui fait varier l'écartement avec l'autre lame.For this and as illustrated in FIG. 5, one of the blades, preferably the one carried by the pair of toothed wheels associated with the cam (25) is mounted adjustable by a blade holder (31) articulated at (32 ) said couple. Opposite the cam, an opening (31a) of the blade holder is crossed by an eccentric (33) centered at 34 on said torque. When the cutting device is in the rest position, a window (35) in the front wall of the cassette allows the passage of a tool of the screwdriver type with which the axis (34) is released and then the eccentric is rotated by a slot (33a) relative to the opening (31a) thereby causing the cutting blade to tilt forwards or backwards which varies the spacing with the other blade.

Enfin, il est prévu pour améliorer encore la coupe, des lames des coupe non seulement à arête convexe et inclinées comme indiqué dans la demande à la base, mais aussi bombées dans leur longueur, comme on le voit à la figure 1.Finally, it is planned to further improve the cutting, cutting blades not only with convex edge and inclined as indicated in the application at the base, but also curved in their length, as seen in Figure 1.

Les avantages ressortent bien de la description, on souligne encore l'efficacité et la fiabilité de coupe obtenues avec l'organe pousseur emmagasinant une énergie supplémentaire délivrée au moment de la coupe, et le réglage rapide de l'écar­tement des lames en fonction du type de matériau.The advantages clearly emerge from the description, the efficiency and reliability of cutting obtained with the pusher member, which stores additional energy delivered at the time of cutting, and the rapid adjustment of the blade spacing according to the type are further emphasized. of material.

Claims (8)

-1- Dispositif de coupe de matériaux d'essuyage stockés dans un appareil assurant leur distribution automatique sous la forme d'une bande étroite, pliée en accordéon, par passage entre des moyens de pliage et d'entrainement, constitué par deux lames métalliques profilées à bord tranchant (5) et (6) montées à ar­ticulation élastique entre deux couples (1-2) et (3-4) d'entrai­nement du matériau plié, en un point déterminé pour que, par rotation desdits couples, les lames se superposent progressive­ment d'une extrémité à l'autre, au fur et à mesure de la rota­tion en restant en contact permanent avec pression et en posi­tion sensiblement parallèle aux axes de rotation des couples de roues dentées pendant toute la durée de la coupe pour trancher par cisaillement la bande pliée du matériau introduite entre lesdits couples et entrainée par traction manuelle sur la bande débordant de l'appareil provoquantla rotation des couples, le dispositif est caractérisé en ce qu'il est associé à un organe pousseur (20-23) agissant lorsque les deux lames de coupe arri­vent en contact et libèrent une énergie emmagasinée pendant la rotation des couples de roues dentées ; cette énergie supplémen­taire étant transmise directement à l'un desdits couples provo­quant son entrainement en rotation.-1- Device for cutting wiping materials stored in an apparatus ensuring their automatic distribution in the form of a narrow strip, folded in an accordion, by passage between folding and driving means, constituted by two profiled metal blades with a cutting edge (5) and (6) mounted with elastic articulation between two couples (1-2) and (3-4) for driving the folded material, at a determined point so that, by rotation of said couples, the blades are progressively superimpose from one end to the other, as the rotation progresses, remaining in permanent contact with pressure and in position substantially parallel to the axes of rotation of the pairs of toothed wheels throughout the duration of the cut in order to cut by shearing the folded strip of material introduced between said pairs and driven by manual traction on the strip projecting from the device causing the couples to rotate, the device is characterized in that it is associated with a pusher member (20-23) acting when the two cutting blades come into contact and release stored energy during the rotation of the pairs of toothed wheels; this additional energy being transmitted directly to one of said couples causing it to rotate. -2- Dispositif selon la revendication 1, caractérisé en ce que l'organe pousseur est constitué par un levier (20) à double ar­ticulation associé étroitement à une came (25) portée par l'axe de rotation de l'un des couples de roues dentées, ladite came étant profilée et orientée angulairement pour d'abord bander un ressort (26) reliant la tige de poussée (23) du levier (20) à un point fixe entre la position repos des couples de roues dentées et la position où les lames de coupe arrivent en contact, puis libérer le levier qui peut alors agir par sa tige (23) sur le couple de roues dentées opposé à celui qui porte la came, afin de l'entrainer en rotation.-2- Device according to claim 1, characterized in that the pusher member is constituted by a lever (20) with double articulation associated closely with a cam (25) carried by the axis of rotation of one of the pairs of cogwheels, said cam being profiled and angularly oriented to first band a spring (26) connecting the push rod (23) of the lever (20) to a fixed point between the rest position of the pairs of cogwheels and the position where the cutting blades come into contact, then release the lever which can then act by its rod (23) on the pair of toothed wheels opposite to that which carries the cam, in order to drive it in rotation. -3- Dispositif selon la revendication 2, caractérisé en ce que le levier (20) coopère avec la came (25) par l'intermédiaire d'un galet ou organe similaire (24).-3- Device according to claim 2, characterized in that the lever (20) cooperates with the cam (25) via a roller or similar member (24). -4- Dispositif selon la revendication 2, caractérisé en ce que la tige de poussée (23) articulée au levier (20) coopère avec le couple de roues dentées à entraîner par l'intermédiaire d'un pion en saillie (30) solidaire dudit couple et disposé pour d'abord abaisser ladite tige à l'encontre du ressort (26) puis passer devant ladite tige et être poussé sous l'effet de détente dudit ressort lorsque le galet (24) pénètre dans une échancrure (25a) de la came.-4- Device according to claim 2, characterized in that the push rod (23) articulated to the lever (20) cooperates with the pair of toothed wheels to be driven by means of a projecting pin (30) integral with said torque and arranged to first lower said rod against the spring (26) then pass in front of said rod and be pushed under the relaxing effect of said spring when the roller (24) enters a notch (25a) of the cam. -5- Dispositif selon la revendication 2, caractérisé en ce que la came (25) présente un talon d'arrêt butant contre le galet (24) après la coupe, afin de finir de détacher la bande de maté­riau tirée.-5- Device according to claim 2, characterized in that the cam (25) has a stop heel abutting against the roller (24) after cutting, in order to finish detaching the strip of material pulled. -6- Dispositif selon la revendication 1, caractérisée en ce que l'une des lames de coupe (5 ou 6) est positionnée de manière règlable sur son couple de roues dentées afin de modifier l'écartement avec l'autre lame en fonction du type de matériau d'essuyage utilisé.-6- Device according to claim 1, characterized in that one of the cutting blades (5 or 6) is positioned in an adjustable manner on its pair of toothed wheels in order to modify the spacing with the other blade depending on the type of wiping material used. -7- Dispositif selon la revendication 6, caractérisé en ce que le réglage d'une des lames de coupe est obtenu par un porte-lame (31) articulé sur l'un des couples de roues dentées ; ledit porte-lame présentant une ouverture (31a) dans laquelle peut être déplacé en rotation un excentrique (33) axé sur ledit cou­ple et agissant sur le porte-lame.-7- Device according to claim 6, characterized in that the adjustment of one of the cutting blades is obtained by a blade holder (31) articulated on one of the pairs of toothed wheels; said blade holder having an opening (31a) in which can be moved in rotation an eccentric (33) centered on said torque and acting on the blade holder. -8- Dispositif selon la revendication 1, caractérisé en ce que les lames de coupe (5, et 6) sont bombées dans leur longueur afin d'améliorer la coupe.-8- Device according to claim 1, characterized in that the cutting blades (5, and 6) are curved in their length to improve the cut.
EP90420224A 1989-05-16 1990-05-11 Cutting device for a dispenser of wiping material in the form of a concertina-folded narrow strip Expired - Lifetime EP0398823B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8906823 1989-05-16
FR8906823A FR2647048B1 (en) 1989-05-16 1989-05-16 DEVICE FOR CUTTING WIPING MATERIALS STORED IN AN APPARATUS ENSURING THEIR AUTOMATIC DISTRIBUTION IN THE FORM OF A NARROW BAND ACCORDION FOLDED

Publications (2)

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EP0398823A1 true EP0398823A1 (en) 1990-11-22
EP0398823B1 EP0398823B1 (en) 1994-09-14

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EP90420224A Expired - Lifetime EP0398823B1 (en) 1989-05-16 1990-05-11 Cutting device for a dispenser of wiping material in the form of a concertina-folded narrow strip

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US (1) US5108357A (en)
EP (1) EP0398823B1 (en)
AT (1) ATE111321T1 (en)
CA (1) CA2016782A1 (en)
DE (1) DE69012425T2 (en)
DK (1) DK0398823T3 (en)
ES (1) ES2063945T3 (en)
FR (1) FR2647048B1 (en)

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FR2667854A1 (en) * 1990-10-12 1992-04-17 Granger Maurice Dispenser for paper towels with central reeling

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US7347134B2 (en) * 2004-09-29 2008-03-25 Kimberly-Clark Worldwide, Inc. No touch dispenser for sheet material with automatic advance
US7500420B2 (en) * 2005-04-25 2009-03-10 Perrin Manufacturing Company Paper towel dispenser apparatus
US8764835B2 (en) * 2006-06-13 2014-07-01 Bret A. Ferree Intervertebral disc treatment methods and apparatus
WO2013044385A1 (en) 2011-09-26 2013-04-04 Cascades Canada Ulc Rolled product dispenser with multiple cutting blades and cutter assembly for a rolled product dispenser
FR3001623B1 (en) 2013-02-04 2015-08-14 Maurice Granger DISTRIBUTOR APPARATUS FOR WIPING MATERIALS SHAPED TO BE IN SEVERAL PLATES OUTSIDE THE APPLIANCE
DE102014220647A1 (en) * 2014-10-13 2015-12-03 Voith Patent Gmbh Water jet cutting device
US11479431B2 (en) 2019-07-19 2022-10-25 Dispensing Dynamics International, Inc. Dispensing systems with floating support rollers

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US4189077A (en) * 1978-09-07 1980-02-19 Crown Zellerbach Corporation Sheet material dispensing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2667854A1 (en) * 1990-10-12 1992-04-17 Granger Maurice Dispenser for paper towels with central reeling

Also Published As

Publication number Publication date
FR2647048B1 (en) 1991-08-30
DK0398823T3 (en) 1994-11-21
ATE111321T1 (en) 1994-09-15
DE69012425T2 (en) 1995-02-02
DE69012425D1 (en) 1994-10-20
US5108357A (en) 1992-04-28
EP0398823B1 (en) 1994-09-14
CA2016782A1 (en) 1990-11-16
FR2647048A1 (en) 1990-11-23
ES2063945T3 (en) 1995-01-16

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