FR2503611A1

FR2503611A1 - CUTTING PLIERS FOR ADJUSTING THE EXTERIOR AND INTERIOR PROFILES OF TILES AND SIMILAR OBJECTS OF THE TYPE WITH REMOTE BRANCHES ADJUSTABLE TO TILES OF DIFFERENT THICKNESSES

Info

Publication number: FR2503611A1
Application number: FR8206227A
Authority: FR
Inventors: Ezio Montoli; Luigi Casartelli
Original assignee: Individual
Current assignee: Individual
Priority date: 1981-04-14
Filing date: 1982-04-07
Publication date: 1982-10-15
Also published as: IT8160915V0; DE3212624A1

Abstract

The tile pincers according to the invention, for trimming the edges of tiles, are distinguished by the fact that they have two or more working ranges for the range of movement of the ''parrot-beak'' jaws. For this purpose, the pivot of the two pincer arms has a hub, the cross-section of which corresponds to a circle with two opposite flattened portions. This hub body engages positively in one pincer part and can optionally engage in two or more circular openings on the other pincer part. The circular openings in the second pincer part, of which there are several, are connected via rectangular intermediate openings, the width of which corresponds to the minimum diameter of the pivot hub. The pincers are adjusted by pivoting the two pincer arms by about 90 DEG relative to the use position. In this position, the flattened hub part can be displaced from one opening of the other pincer part into an adjacent opening.

Description

L'objet de la présente invention est une pince coupante pour l'ajustage des profils extérieurs et intérieurs des carreaux et objets similaires du type ayant deux branches pour ainsi dire en forme de bec de perroquet, à taillants légèrement ouverts, unies entre elles par un boulon d1articulation, caractérisée en ce que l'une des branches présente plus de trous de réception du boulon d'articulation communiquant entre eux, qui permettent de fournir à ladite branche un point d'appui en plus de points en ajustant la distance desdites branches à des carreaux de différentes épaisseurs. The object of the present invention is a cutting pliers for adjusting the external and internal profiles of tiles and similar objects of the type having two branches, so to speak in the shape of a parrot's beak, with slightly open cutting edges, joined together by a articulation bolt, characterized in that one of the branches has more holes for receiving the articulation bolt communicating with each other, which make it possible to provide said branch with a fulcrum in addition to points by adjusting the distance of said branches to tiles of different thicknesses.

En l'état actuel de la technique, il existe des pinces coupantes normalement utilisées par les carreleurs et les hydrauliciens pour l'ajustage des profils extérieurs et intérieurs des carreaux de céramique et objets similaires de grande dureté. Ces pinces connues étaient construites avec une ouverture des tranchante des branches, & pince ouverte et fermée, s'espaçant autour des carreaux d'épaisseur le plus commune. Etant donné que la plage des variations de l'épaisseur des carreaux est très large, la pince devait avoir un champ d'ouverture assez large, ce qui se traduisait en bras de levier pas très avantageux et en conditions d'ouverture des leviers incommodes pour l'opérateur dens les limites du champ d'excursion.Néanmoins, il pouvait y avoir des carreaux d'une épaisseur telle qu'il était impossible de travailler. In the current state of the art, there are cutting pliers normally used by tilers and hydraulic engineers for the adjustment of the external and internal profiles of ceramic tiles and similar objects of great hardness. These known pliers were constructed with an opening of the cutting edge of the branches, & open and closed pliers, spaced around the most common thickness tiles. Since the range of variations in the thickness of the tiles is very wide, the clamp had to have a fairly wide opening field, which resulted in lever arm not very advantageous and in conditions of opening of the levers inconvenient for the operator dens the limits of the excursion field. However, there could be tiles of such thickness that it was impossible to work.

Le but de la présente invention est d'éliminer les inconvénients précités et d'offrir, en outre, divers avantages. Les Inventeurs ont eu l'idée originale d'une pince dont les branches peuvent être réglées selon au moins deux positions d'appui réciproque, afin de pouvoir utiliser autant de champs d'ouverture des taillants dans des conditions plus avantageuses soit de force, soit de position de saisie. The object of the present invention is to eliminate the aforementioned drawbacks and to offer, in addition, various advantages. The inventors had the original idea of a clamp whose branches can be adjusted according to at least two positions of reciprocal support, in order to be able to use as many opening fields of the cutters under more advantageous conditions either by force or input position.

Pour mieux comprendre les caractéristiques de la présente invention, on se réfère aux dessins annexés, lesquels montrent une forme possible de réalisation pratique de l'invention d'une manière schématique et seulement explicative. To better understand the features of the present invention, reference is made to the accompanying drawings, which show a possible practical embodiment of the invention in a schematic and only explanatory manner.

La fig. 1 est une vue en perspective éclatée d'une pince selon la présente invention. Fig. 1 is an exploded perspective view of a clamp according to the present invention.

La fig. 2 est une vue en perspective, à une échelle réduite, de la pince de la fig. 1 montée dans la condition de fermeture de la pince et des branches opérant dans le champ rapproché. Fig. 2 is a perspective view, on a reduced scale, of the clamp of FIG. 1 mounted in the closed condition of the clamp and of the branches operating in the near field.

La fig. 3 est essentiellement une répétition de la fig. 2, mais avec les branches dans des conditions d'6loi- gnement. Fig. 3 is essentially a repetition of FIG. 2, but with the branches in distant conditions.

La fig. 4 représente en perspective la pince des fig. 2 et 3, dans l'acte suivant lequel on passe de la con- dition rapprochée à la condition éloignée ou vice versa des branches. Fig. 4 shows in perspective the clamp of FIGS. 2 and 3, in the act according to which one passes from the close condition to the distant condition or vice versa from the branches.

En se référant aux figures, selon le présente iRvention, on observe que la branche inférieure 1 présente un trou traversant oblong 10 pour l'accueil du moyeu 30 du boulon d'articulation 3 de section correspondant à celle dudit trou 10. La branche 1 est munie dtune pro- tubérance ll avec une face d'arrêt 112. La branche suprieure 2 présente, au contraire, au moins deux trous cylindriques communicants 20 qui, en correspondance du couloir de communication 21, ont une largeur correspondant à celle des faces 30t du moyeu 30. Referring to the figures, according to the present iRvention, it is observed that the lower branch 1 has an oblong through hole 10 for the reception of the hub 30 of the articulation bolt 3 of section corresponding to that of said hole 10. The branch 1 is provided with a protuberance 11 with a stop face 112. The upper branch 2 has, on the contrary, at least two communicating cylindrical holes 20 which, in correspondence with the communication corridor 21, have a width corresponding to that of the faces 30t of the hub 30.

Le boulon d'articuletion 3 est, en outre, muni deune vis 31 et d'une tete 32 formant un corps unique avec le moyeu 30. La vis 31 sert à recevoir l'écrou 4 qui présente deux aplanissements 40 pour en faciliter la manipulation. The articulation bolt 3 is further provided with a screw 31 and a head 32 forming a single body with the hub 30. The screw 31 serves to receive the nut 4 which has two planarizations 40 for easier handling .

Le fonctionnement et le réglage de la pince sont d'une très grande simplicité. Pour les carreaux les plus minces, les branches sont disposées comme l'indique la fig. The operation and adjustment of the clamp are very simple. For the thinnest tiles, the branches are arranged as shown in fig.

2, tandis que pour des carreaux de plus grande dimension les branches sont disposées comme l'indique la fig. 3. Pour passer d'une condition à l'autre, on opère comme l'indique la fig. 4, ctest-b-dire qu'on dispose les faces 30t du moyeu 30 parallèlement à la jonction des axes des trous 2U et on déplace les branches réciproquement dans la mEme position parallèle. 2, while for larger tiles the branches are arranged as shown in fig. 3. To go from one condition to another, we operate as shown in fig. 4, that is to say that the faces 30t of the hub 30 are arranged parallel to the junction of the axes of the holes 2U and the branches are reciprocally moved into the same parallel position.

Claims

1. Cutting pliers for the adjustment of the exterior and interior profiles of tiles and similar objects of the type comprising two branches and a hinge bolt, which being closed has slightly spaced cutting edges, characterized in that the position of the point of support of one of its levers can modified streak compared to 9 the position of the fulcrum of the other lever.

2. Cutting pliers according to claim 1, characterized in that one of the levers is provided in correspondence with the fulcrum of a through hole of oblong section capable of receiving a hinge bolt with a hub of essentially section equal to that of the hole, while the other lever is provided with two openings through the holes communicating with each other with a corridor of width corresponding to that of the facets of the hub of the articulation bolt, said hub having a length between the threaded head and tail corresponding to the thickness of the branches corresponding to the fulcrum.