EP1725381B1 - Pliers for cutting plastic tubes - Google Patents

Pliers for cutting plastic tubes Download PDF

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Publication number
EP1725381B1
EP1725381B1 EP05730725A EP05730725A EP1725381B1 EP 1725381 B1 EP1725381 B1 EP 1725381B1 EP 05730725 A EP05730725 A EP 05730725A EP 05730725 A EP05730725 A EP 05730725A EP 1725381 B1 EP1725381 B1 EP 1725381B1
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EP
European Patent Office
Prior art keywords
lever
wheel
tube
notches
blade
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.)
Not-in-force
Application number
EP05730725A
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German (de)
French (fr)
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EP1725381A1 (en
Inventor
Lionel Marcon
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.)
Pierre Grehal et Cie SA
Original Assignee
Pierre Grehal et Cie 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 Pierre Grehal et Cie SA filed Critical Pierre Grehal et Cie SA
Publication of EP1725381A1 publication Critical patent/EP1725381A1/en
Application granted granted Critical
Publication of EP1725381B1 publication Critical patent/EP1725381B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • B26D3/169—Hand held tube cutters

Definitions

  • the invention relates to a clamp for cutting plastic tubes according to the preamble of claim 1.
  • a clamp is described by the EP-A-761396 .
  • plastic tubes when plastic tubes are used in an electrical installation as cable ducts, it is to be able to cut tubes of different diameters.
  • the object of the invention is to provide a clamp for cutting plastic tubes, which combines in it the advantage of a fast and precise cutting with that of a section of tubes of different diameters.
  • the object of the invention is achieved with a clip having the features of claim 1.
  • the clip comprises a first and a second lever on a pivot axis allowing them to be pivoted relative to each other between a open position to receive a tube to be cut and a closed position at the end of the cut.
  • the first lever is provided with notches of different widths each of which is intended to receive a tube of corresponding diameter.
  • the second lever supports a blade.
  • the clamp comprises a wheel pivotally mounted on the first lever.
  • the circumference of this wheel are notches made so that a notch chosen according to the diameter of the tube can be put next to the blade by rotating the wheel in a corresponding position.
  • a single clamp is used to cut tubes of at least two different diameters. It is easily understood that the number of notches that can be made in the wheel, and consequently the number of different diameters of the tubes that can be cut with the same clamp, depends both on the diameters of the tubes and the diameter of the wheel. In this sense, the embodiment shown in the drawings and described below according to which the clamp of the invention is made to cut tubes of three different diameters, is only one embodiment, which should not be considered in no way as limiting.
  • the use of a sharp blade can initiate the cutting of the tube at a point of the circumference of the tube and continue from this point by cutting the tube in two opposite directions.
  • notches having a width slightly smaller than the diameter of the tube has the consequence that the tube is slightly deformed when it is inserted into the notch.
  • the initially circular section of the tube then becomes an oval section whose curved part of the circumference is oriented towards the blade.
  • the tube is not likely to collapse under the pressure of the tip of the blade when it comes to rest on the tube to start cutting.
  • the forceps of the invention which is designed for cutting plastic tubes, and which is shown in FIG. figure 1 in the open position and on the figure 2 in the closed position, comprises a first lever 1 and a second lever 2.
  • the two levers are articulated together on a pivot axis 3 which allows them to be pivoted relative to each other between an open position to receive a tube to be cut and a closed position at the end of a cut.
  • the first and second levers 1, 2 are advantageously constituted by longitudinally folded metal profiles substantially U-shaped. These profiles, one of which is narrower than the other, are engaged one inside the other and articulated on the pivot axis 3.
  • the first lever 1 supports a wheel 4 provided with three notches 41, 42, 43 each having a different width d and intended for receive a tube of diameter D which must be cut.
  • the width d of each of these notches is slightly less than the diameter D of the tube to which each slot is assigned. Because of this design of the invention, the cutting of a tube is essentially in two stages. The first step consists in placing a tube on the inlet of the corresponding notch, followed by the insertion of the tube into the notch by the blade, accompanied by a local deformation of the tube.
  • the second step consists of cutting the tube.
  • the wheel 4 is constituted by two disks 44, 45 parallel to each other which are mounted axially distanced from each other on the same axis of rotation 11.
  • the axis 11 is housed in the first lever 1, more precisely in each of two branches 14, 15 through which ends the first lever 1.
  • the axis of rotation 11 is oriented parallel to the pivot axis 3 of the levers 1, 2.
  • the two discs 44, 45 are each provided with three spikes 46 obtained by stamping.
  • the pins 46 extend towards the corresponding branch of the lever 1, namely the pins 46 of the disk 44 are oriented towards the branch 14 of the lever 1 and the pins 46 of the disk 45 are oriented towards the branch 13 of the lever 1.
  • each of the two branches 13, 14 of the lever 1 terminates beyond the axis of rotation 11 of the two disks 44, 45 by a branch end 16, 17.
  • the lever 1 terminates in two L-shaped branches 13, 14, the transverse portion of which relative to the general extent of the lever 1 constitutes the end of the branch 16, 17.
  • Each of these branch ends 16, 17 is provided with a hole 12, 13 with which cooperates one of the three pins 46 of each of the disks 44, 45 to mark a stop position of the wheel 4 for the chosen notch. So, in the position represented on the figure 1 , the pin 46 of the disk 44, engaged in the hole 12 of the end of leg 16 of the lever 1, is the one that ensures the exact position of the notch 42 of the wheel 4.
  • the gripper To lock the clamp in the closed position, it is provided with a locking means 21 which is here in the form of a pivoting latch 22 mounted on the lever 2 and a corresponding notch 23 formed in the lever 1.
  • the gripper according to the invention finally comprises, as part of the protection of the hands and to be able to grip the gripper in an easier way, plastic sleeves 31, 32 provided with flat protrusions 33, 34 intended primarily to protect the hand in case small incidents while cutting a tube.

Abstract

The pliers has two handles (1, 2) articulated with each other on a pivoting axle (3) for being pivoted between an open position and a closed position. The handle (1) has a wheel (4) whose circumference has three notches (41-43) of different widths such that one notch is chosen according to a diameter of a tube to be cut and is placed opposite to a blade (5) of the handle (2), when the wheel is turned to a corresponding position.

Description

L'invention concerne une pince pour découper des tubes en matière plastique selon le préambule de la revendication 1. Une telle pince est décrite par le EP-A-761396 .The invention relates to a clamp for cutting plastic tubes according to the preamble of claim 1. Such a clamp is described by the EP-A-761396 .

Dans de nombreux cas, il est nécessaire de pouvoir découper de façon très précise et très nette des tubes en matière plastique. De plus, lorsqu'il s'agit de découper de tels tubes dans le cadre d'une nouvelle installation, il s'agit de pouvoir découper une grande quantité de tubes dans un temps relativement court, mais quand même avec la précision requise. Sous des conditions pareilles, il s'avère insuffisant tant sur le plan de la découpe précise que sur celui de la rapidité de découpe, de vouloir découper de tels tubes moyennant une scie ou moyennant une pince à découper ressemblant à un sécateur.In many cases, it is necessary to be able to cut very precisely and very clearly plastic tubes. In addition, when it comes to cutting such tubes in a new installation, it is about being able to cut a large amount of tubes in a relatively short time, but still with the required accuracy. Under such conditions, it is insufficient both in terms of precise cutting and cutting speed, want to cut such tubes by means of a saw or with a cutting pliers like a pruner.

Par ailleurs, lorsque des tubes en matière plastique sont utilisés dans une installation électrique comme gaines de câbles, il s'agit de pouvoir découper des tubes de diamètres différents.Furthermore, when plastic tubes are used in an electrical installation as cable ducts, it is to be able to cut tubes of different diameters.

Le but de l'invention est de proposer une pince pour découper des tubes en matière plastique, qui réunit en elle l'avantage d'une coupe rapide et précise avec celui d'une coupe de tubes de différents diamètres.The object of the invention is to provide a clamp for cutting plastic tubes, which combines in it the advantage of a fast and precise cutting with that of a section of tubes of different diameters.

Le but de l'invention est atteint avec une pince ayant les caractéristiques de la revendication 1. La pince comporte un premier et un second levier sur un axe de pivotement leur permettant d'être pivotés l'un par rapport à l'autre entre une position ouverte pour recevoir un tube qui doit être découpé et une position fermée à la fin de la découpe. Le premier levier est pourvu d'encoches de largeurs différentes dont chacune est destinée à recevoir un tube de diamètre correspondant. Le second levier supporte une lame.The object of the invention is achieved with a clip having the features of claim 1. The clip comprises a first and a second lever on a pivot axis allowing them to be pivoted relative to each other between a open position to receive a tube to be cut and a closed position at the end of the cut. The first lever is provided with notches of different widths each of which is intended to receive a tube of corresponding diameter. The second lever supports a blade.

Conformément à l'invention, la pince comprend une roue montée pivotante sur le premier levier. Dans le pourtour de cette roue sont pratiquées des encoches de manière qu'une encoche choisie selon le diamètre du tube puisse être mise en regard de la lame en faisant tourner la roue dans une position correspondante.According to the invention, the clamp comprises a wheel pivotally mounted on the first lever. In the circumference of this wheel are notches made so that a notch chosen according to the diameter of the tube can be put next to the blade by rotating the wheel in a corresponding position.

Grâce à cette disposition de l'invention, une seule pince permet de découper des tubes d'au moins deux diamètres différents. On comprend aisément que le nombre d'encoches pouvant être pratiquées dans la roue, et en conséquence le nombre de diamètres différents des tubes qui peuvent être découpés avec une même pince, dépend à la fois des diamètres des tubes et du diamètre de la roue. Dans ce sens, le mode de réalisation montré dans les dessins et décrit plus loin selon lequel la pince de l'invention est réalisée pour découper des tubes des trois diamètres différents, n'est qu'un exemple de réalisation, qui ne doit être considéré en aucun cas comme limitatif.With this arrangement of the invention, a single clamp is used to cut tubes of at least two different diameters. It is easily understood that the number of notches that can be made in the wheel, and consequently the number of different diameters of the tubes that can be cut with the same clamp, depends both on the diameters of the tubes and the diameter of the wheel. In this sense, the embodiment shown in the drawings and described below according to which the clamp of the invention is made to cut tubes of three different diameters, is only one embodiment, which should not be considered in no way as limiting.

La pince de l'invention peut avoir par ailleurs une au moins des deux caractéristiques supplémentaires suivantes :

  • la lame a deux tranchants successifs formant une pointe entre eux ; la lame est donc une lame pointue avec un angle obtus ;
  • la largeur de chacune des encoches est inférieure au diamètre du tube qu'elle est destinée à recevoir.
The clip of the invention may also have at least one of the following two additional features:
  • the blade has two successive cutting edges forming a point between them; the blade is therefore a pointed blade with an obtuse angle;
  • the width of each of the notches is smaller than the diameter of the tube that it is intended to receive.

L'une comme l'autre des deux caractéristiques supplémentaires énoncées ci-avant contribue à sa façon à faciliter encore davantage le travail avec la pince de l'invention.Both of the above two additional features contribute in its own way to further facilitate work with the forceps of the invention.

En effet, l'utilisation d'une lame pointue permet d'amorcer la découpe du tube à un point de la circonférence du tube et de continuer à partir de ce point en tranchant le tube dans deux directions opposées.Indeed, the use of a sharp blade can initiate the cutting of the tube at a point of the circumference of the tube and continue from this point by cutting the tube in two opposite directions.

Et le fait d'utiliser des encoches ayant une largeur légèrement inférieure au diamètre du tube, a pour conséquence que le tube est légèrement déformé lorsqu'il est inséré dans l'encoche. La section initialement circulaire du tube devient alors une section ovale dont la partie plus courbée de la circonférence est orientée vers la lame. Ainsi, le tube ne risque pas de s'écraser sous la pression de la pointe de la lame lorsque celle-ci vient s'appuyer sur le tube pour commencer la découpe.And the fact of using notches having a width slightly smaller than the diameter of the tube, has the consequence that the tube is slightly deformed when it is inserted into the notch. The initially circular section of the tube then becomes an oval section whose curved part of the circumference is oriented towards the blade. Thus, the tube is not likely to collapse under the pressure of the tip of the blade when it comes to rest on the tube to start cutting.

L'invention peut comprendre également les caractéristiques supplémentaires ci-après, considérées isolément ou selon toutes leur combinaisons techniquement possibles :

  • la roue est constituée par deux disques parallèles entre eux et montés axialement distancés l'un de l'autre sur un même axe de rotation logé dans le premier levier, l'axe de rotation étant orienté parallèlement à l'axe de pivotement des leviers ;
  • chaque disque comporte autant de picots que d'encoches, les picots étant destinés à coopérer avec deux trous pratiqués dans le levier, pour marquer une position d'arrêt de la roue pour chaque encoche ;
  • le premier levier comporte deux branches entre lesquelles la roue est montée tournante, chacune des deux branches se termine au-delà de l'axe de rotation des deux disques par une fin de branche pourvue d'un trou ; et chaque disque est pourvu d'autant de picots que d'encoches, chacun des picots étant destiné à coopérer avec le trou de la fin de branche correspondante pour marquer une position d'arrêt de la roue pour l'encoche choisie ;
  • les disques sont montés sur l'axe de rotation de manière à pouvoir être basculés légèrement l'un vers l'autre, à l'encontre d'une force de rappel.
The invention may also include the following additional features, considered individually or in all their technically possible combinations:
  • the wheel is constituted by two disks parallel to each other and mounted axially distanced from each other on the same axis of rotation housed in the first lever, the axis of rotation being oriented parallel to the pivot axis of the levers;
  • each disc has as many pins as notches, the pins being intended to cooperate with two holes in the lever, to mark a stopping position of the wheel for each notch;
  • the first lever comprises two branches between which the wheel is rotatably mounted, each of the two branches ends beyond the axis of rotation of the two discs by a branch end provided with a hole; and each disk is provided with as many pins as notches, each of the pins being adapted to cooperate with the hole of the end of the corresponding branch to mark a stopping position of the wheel for the chosen notch;
  • the discs are mounted on the axis of rotation so that they can be tilted slightly towards each other, against a restoring force.

D'autres caractéristiques supplémentaires et avantages de la présente invention ressortiront de la description ci-après d'un mode de réalisation, la description étant faite en référence aux dessins dans lesquels :

  • la figure 1 montre une pince selon l'invention en position ouverte,
  • la figure 2 montre la pince de la figure 1 en position fermée,
  • la figure 3 montre le début de l'insertion d'un tube dans une pince selon l'invention,
  • la figure 4 montre le début d'une découpe d'un tube avec une pince selon l'invention, et
  • la figure 5 montre la pince de la figure 2 en une vue perpendiculaire à son axe de pivotement.
Other additional features and advantages of the present invention will become apparent from the following description of an embodiment, the description being made with reference to the drawings in which:
  • the figure 1 shows a clamp according to the invention in the open position,
  • the figure 2 shows the clip of the figure 1 in closed position,
  • the figure 3 shows the beginning of the insertion of a tube into a clamp according to the invention,
  • the figure 4 shows the beginning of a cutting of a tube with a clamp according to the invention, and
  • the figure 5 shows the clip of the figure 2 in a view perpendicular to its pivot axis.

La pince de l'invention, qui est conçue pour découper des tubes en matière plastique, et qui est représentée sur la figure 1 en position ouverte et sur la figure 2 en position fermée, comporte un premier levier 1 et un second levier 2. Les deux leviers sont articulés entre eux sur un axe de pivotement 3 qui leur permet d'être pivotés l'un par rapport à l'autre entre une position ouverte pour recevoir un tube qui doit être découpé et une position fermée à la fin d'une découpe. Les premier et second leviers 1, 2 sont avantageusement constitués par des profilés métalliques pliés longitudinalement sensiblement en forme de U. Ces profilés, dont l'un est plus étroit que l'autre, sont engagés l'un dans l'autre et articulés sur l'axe de pivotement 3.The forceps of the invention, which is designed for cutting plastic tubes, and which is shown in FIG. figure 1 in the open position and on the figure 2 in the closed position, comprises a first lever 1 and a second lever 2. The two levers are articulated together on a pivot axis 3 which allows them to be pivoted relative to each other between an open position to receive a tube to be cut and a closed position at the end of a cut. The first and second levers 1, 2 are advantageously constituted by longitudinally folded metal profiles substantially U-shaped. These profiles, one of which is narrower than the other, are engaged one inside the other and articulated on the pivot axis 3.

Alors que le second levier 2 supporte une lame 5 ayant deux tranchants 51, 52 successifs formant une pointe 53 entre eux, le premier levier 1 supporte une roue 4 pourvue de trois encoches 41, 42, 43 ayant chacune une largeur d différente et destinées à recevoir un tube de diamètre D qui doit être découpé. La largeur d de chacune de ces encoches est légèrement inférieure au diamètre D du tube auquel chaque encoche est attribuée. En raison de cette conception de l'invention, la découpe d'un tube se passe essentiellement en deux étapes. La première étape consiste en la mise en place d'un tube sur l'entrée de l'encoche correspondante, suivie de l'enfoncement du tube dans l'encoche par la lame, accompagné d'une déformation locale du tube. La seconde étape consiste en la découpe du tube.While the second lever 2 supports a blade 5 having two successive cutting edges 51, 52 forming a point 53 between them, the first lever 1 supports a wheel 4 provided with three notches 41, 42, 43 each having a different width d and intended for receive a tube of diameter D which must be cut. The width d of each of these notches is slightly less than the diameter D of the tube to which each slot is assigned. Because of this design of the invention, the cutting of a tube is essentially in two stages. The first step consists in placing a tube on the inlet of the corresponding notch, followed by the insertion of the tube into the notch by the blade, accompanied by a local deformation of the tube. The second step consists of cutting the tube.

La roue 4 est constituée par deux disques 44, 45 parallèles entre eux qui sont montés axialement distancés l'un de l'autre sur un même axe de rotation 11. L'axe 11 est logé dans le premier levier 1, plus précisément dans chacune de deux branches 14, 15 par lesquelles se termine le premier levier 1. L'axe de rotation 11 est orienté parallèlement à l'axe de pivotement 3 des leviers 1, 2.The wheel 4 is constituted by two disks 44, 45 parallel to each other which are mounted axially distanced from each other on the same axis of rotation 11. The axis 11 is housed in the first lever 1, more precisely in each of two branches 14, 15 through which ends the first lever 1. The axis of rotation 11 is oriented parallel to the pivot axis 3 of the levers 1, 2.

Les deux disques 44, 45 sont pourvus, chacun, de trois picots 46 obtenus par emboutissage. Les picots 46 s'étendent en direction de la branche correspondante du levier 1, à savoir les picots 46 du disque 44 sont orientés vers la branche 14 du levier 1 et les picots 46 du disque 45 sont orientés vers la branche 13 du levier 1.The two discs 44, 45 are each provided with three spikes 46 obtained by stamping. The pins 46 extend towards the corresponding branch of the lever 1, namely the pins 46 of the disk 44 are oriented towards the branch 14 of the lever 1 and the pins 46 of the disk 45 are oriented towards the branch 13 of the lever 1.

Chacune des deux branches 13, 14 du levier 1 se termine au-delà de l'axe de rotation 11 des deux disques 44, 45 par une fin de branche 16, 17. Selon le mode de réalisation représenté sur les figures 1 et 2, le levier 1 se termine par deux branches 13, 14 en forme de L dont la partie transversale par rapport à l'étendue générale du levier 1 constitue la fin de branche 16, 17. Chacune de ces fins de branche 16, 17 est pourvue d'un trou 12, 13 avec lequel coopère un des trois picots 46 de chacun des disques 44, 45 pour marquer une position d'arrêt de la roue 4 pour l'encoche choisie. Ainsi, dans la position représentée sur la figure 1, le picot 46 du disque 44, engagé dans le trou 12 de la fin de branche 16 du levier 1, est celui qui assure la mise en position exacte de l'encoche 42 de la roue 4. Il est suivi, dans le sens des aiguilles d'une montre, du picot 46 assurant la mise en position exacte de l'encoche 41 et puis du picot 46 assurant la mise en position exacte de l'encoche 43. Pour changer la position de la roue 4, on se sert du fait que les disques 44, 45 sont montés sur l'axe de rotation 11 de manière à pouvoir être basculés légèrement l'un vers l'autre, à l'encontre de la force de rappel d'un ressort 18. En conséquence, lorsque l'on appuie sur les deux disques 44, 45 du côté opposé par rapport à l'encoche actuellement en position, c'est-à-dire, selon la figure 1, sur le bord de la roue 4 où les deux picots 46 correspondant sont engagés dans les trous respectivement 12 et 13, on fait sortir ces picots 46 des trous 12, 13, ce qui permet de tourner la roue jusqu'à ce qu'une des deux autres encoches, 41 ou 43, est mise en position.Each of the two branches 13, 14 of the lever 1 terminates beyond the axis of rotation 11 of the two disks 44, 45 by a branch end 16, 17. According to the embodiment shown in FIGS. figures 1 and 2 the lever 1 terminates in two L-shaped branches 13, 14, the transverse portion of which relative to the general extent of the lever 1 constitutes the end of the branch 16, 17. Each of these branch ends 16, 17 is provided with a hole 12, 13 with which cooperates one of the three pins 46 of each of the disks 44, 45 to mark a stop position of the wheel 4 for the chosen notch. So, in the position represented on the figure 1 , the pin 46 of the disk 44, engaged in the hole 12 of the end of leg 16 of the lever 1, is the one that ensures the exact position of the notch 42 of the wheel 4. It is followed, in the direction of clockwise, the pin 46 ensuring the exact position of the notch 41 and then the pin 46 ensuring the exact position of the notch 43. To change the position of the wheel 4, we use the the discs 44, 45 are mounted on the rotational axis 11 so that they can be tilted slightly towards each other, against the restoring force of a spring 18. Consequently, when the two disks 44, 45 are pressed on the opposite side with respect to the notch currently in position, that is to say, according to the figure 1 , on the edge of wheel 4 where the two spikes 46 corresponding are engaged in the holes 12 and 13 respectively, it makes out these pins 46 holes 12, 13, which allows to turn the wheel until one of the two other notches, 41 or 43, is put in position .

Cette disposition des picots et des trous et notamment leur coopération protègent l'utilisateur de la pince des conséquences d'un rapprochement dangereux de sa main de la lame 5. En effet, si l'utilisateur de la pince, notamment lorsque la pince est en position ouverte, saisit les disques de la roue 4 sur une partie proche de la lame 5, le rapprochement des disques 44, 45 dans cette zone de la roue 4 tend à augmenter l'enfoncement des picots 46 dans les trous 12 et 13 au lieu de les en sortir. En conséquence, seul un appui sur la zone de la roue 4 situé à l'opposé de la lame par rapport à l'axe de rotation 11 permet de libérer les disques 44, 45 pour pouvoir tourner la roue dans une nouvelle position.This arrangement of the pins and holes and in particular their cooperation protect the user of the clamp consequences of a dangerous approximation of his hand blade 5. Indeed, if the user of the clamp, especially when the clamp is in open position, grips the discs of the wheel 4 on a part near the blade 5, bringing the discs 44, 45 in this area of the wheel 4 tends to increase the depression of the pins 46 in the holes 12 and 13 instead to get out of them. Consequently, only a bearing on the area of the wheel 4 located opposite the blade relative to the axis of rotation 11 releases the disks 44, 45 to be able to turn the wheel in a new position.

Il est aisé de comprendre que la forme particulière des disques 44, 45, qui laisse plutôt penser à une constellation en étoile de trois branches, peut être remplacée, sans sortir du principe de la présente invention, par deux disques ayant une circonférence circulaire CC, comme cela est représenté sur la figure 2 en traits interrompus.It is easy to understand that the particular shape of the disks 44, 45, which rather suggests a star constellation of three branches, can be replaced, without departing from the principle of the present invention, by two disks having a circular circumference CC, as shown on the figure 2 in broken lines.

Pour bloquer la pince en position fermée, elle est pourvue d'un moyen de blocage 21 qui se présente ici sous la forme d'un loqueteau pivotant 22 monté sur le levier 2 et une encoche correspondante 23 pratiquée dans le levier 1. De plus, la pince selon l'invention comprend enfin, au titre de la protection des mains et pour pouvoir saisir la pince de manière plus facile, des manchons en plastique 31, 32 pourvus d'excroissances plates 33, 34 destinées principalement à protéger la main en cas de petits incidents pendant la découpe d'un tube.To lock the clamp in the closed position, it is provided with a locking means 21 which is here in the form of a pivoting latch 22 mounted on the lever 2 and a corresponding notch 23 formed in the lever 1. In addition, the gripper according to the invention finally comprises, as part of the protection of the hands and to be able to grip the gripper in an easier way, plastic sleeves 31, 32 provided with flat protrusions 33, 34 intended primarily to protect the hand in case small incidents while cutting a tube.

Claims (7)

  1. Pliers for cutting plastic tubes, comprising a first (1) and a second (2) lever hinged with respect to each other on a fulcrum pin (3), allowing them to be pivoted between an open position for receiving a tube to be cut and a closed position at the end of cutting, the first lever (1) being provided with notches (41, 42, 43) of different width, each of which is meant to receive a tube of corresponding diameter, and the second lever (2) supporting a blade (5),
    characterized by a wheel (4) rotatingly mounted on the first lever (1), in the periphery of which the notches (41, 42, 43) are made so that a notch selected depending on the tube diameter can be placed opposite the blade (5), when the wheel (4) is turned into the corresponding position.
  2. The pliers according to claim 1, characterized in that the blade (5) has two successive edges (51, 52) forming a tip (53) therebetween.
  3. The pliers according to claim 1 or 2, characterized in that the width of each of the notches (41, 42, 43) is smaller than the diameter of the tube it is meant to receive.
  4. The pliers according to any of claims 1 to 3, characterized in that the wheel (4) is composed of two discs (44, 45) parallel to each other and axially mounted at a distance from each other on the same rotational axis (11) housed in the first lever (1), with the rotational axis (11) being oriented in parallel to the fulcrum pin (3) of the levers (1, 2).
  5. The pliers according to claim 4, characterized in that each disc (44, 45) comprises as many sprockets (46) as there are notches (41, 42, 43), with the sprockets (46) being meant to cooperate with two holes (12, 13) made in lever (1) so as to mark a stop position of the wheel (4) for each notch.
  6. The pliers according to claim 4, characterized in that the first lever (1) has two branches (14, 15), between which the wheel (4) is mounted rotatingly, with each of both branches (14, 15) ending beyond the rotational axis (11) of the two discs (44, 45) in a branch end (16, 17) provided with a hole (12, 13), and in that each disc (44, 45) is provided with as many sprockets (46) as there are notches (41, 42, 43), with each of the sprockets (46) being meant to cooperate with the hole (12 or 13) of the corresponding branch end (16 or 17) in order to mark a stop position of the wheel (4) for the selected notch (41, 42 or 43).
  7. The pliers according to any of claims 4 to 6, characterized in that the discs (44, 45) are mounted on the rotational axis (11) so that they can be tilted slightly towards each other, against a return force.
EP05730725A 2004-03-10 2005-02-22 Pliers for cutting plastic tubes Not-in-force EP1725381B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0402504A FR2867407B1 (en) 2004-03-10 2004-03-10 CLAMP FOR CUTTING TUBES OF PLASTIC MATERIAL
PCT/FR2005/000410 WO2005097435A1 (en) 2004-03-10 2005-02-22 Pliers for cutting plastic tubes

Publications (2)

Publication Number Publication Date
EP1725381A1 EP1725381A1 (en) 2006-11-29
EP1725381B1 true EP1725381B1 (en) 2009-09-30

Family

ID=34896439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05730725A Not-in-force EP1725381B1 (en) 2004-03-10 2005-02-22 Pliers for cutting plastic tubes

Country Status (7)

Country Link
US (1) US20070289140A1 (en)
EP (1) EP1725381B1 (en)
JP (1) JP2007527761A (en)
AT (1) ATE444145T1 (en)
DE (1) DE602005016902D1 (en)
FR (1) FR2867407B1 (en)
WO (1) WO2005097435A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8627752B2 (en) * 2009-12-16 2014-01-14 William Saad Tool for cutting ceiling tile grid stock and method of cutting using the tool
US20170136645A1 (en) * 2014-11-12 2017-05-18 Jeffrey A. White TUBE CUTTING and INSTALLATION TOOL
TWM534671U (en) * 2016-09-23 2017-01-01 Hanlong Industrial Co Ltd Pipe-cutter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US560524A (en) * 1896-05-19 Wire-stripping tool
US20387A (en) * 1858-05-25 Peters
US2968096A (en) * 1960-02-29 1961-01-17 Bonito Vincent Wire stripping tool
US3543616A (en) * 1968-03-21 1970-12-01 Marion W Bradley Slitter and insulation for tape-type wire
JPS5913013U (en) * 1982-07-14 1984-01-26 株式会社コムラ製作所 tube cutter
JPS60117020U (en) * 1984-01-18 1985-08-07 株式会社　潤工社 tube ivy
CA2184444A1 (en) * 1995-09-07 1997-03-08 Fiberstars Incorporated Hand-held severing device
FR2843904B1 (en) * 2002-08-28 2005-04-29 Pierre Grehal Et Cie Ets ASSEMBLY FOR CUTTING A LONGILINE MATERIAL OF TRUNCONS OF A PREDETERMINED LENGTH

Also Published As

Publication number Publication date
EP1725381A1 (en) 2006-11-29
DE602005016902D1 (en) 2009-11-12
FR2867407B1 (en) 2006-05-05
WO2005097435A1 (en) 2005-10-20
ATE444145T1 (en) 2009-10-15
FR2867407A1 (en) 2005-09-16
US20070289140A1 (en) 2007-12-20
JP2007527761A (en) 2007-10-04

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