FR2619044A1

FR2619044A1 - Manual tool for cutting and sizing metal rods of small cross-section

Info

Publication number: FR2619044A1
Application number: FR8711170A
Authority: FR
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-08-03
Filing date: 1987-08-03
Publication date: 1989-02-10

Abstract

This tool consists of a hollow cylindrical body 1 which may possibly be matched to the shape of the hand, as is the handgrip 9 actuating a cutter holder 11 and its guillotine blade 14 sliding in the groove of a block 15 which is pierced with holes of different diameters allowing the passage of rods to be cut. This block 15 is located at the top of the hollow cylindrical body 1, which encloses a system for adjusting the depth of cut consisting of a knurled adjusting wheel 2, of a knurled locking wheel 3 integral with a pin 6 connected to a calibrated stop-piece 5. A slot 8 is made on the hollow tubular body and adjoins a millimetric rule 7 making it possible, by adjusting the mark 4 of the stop-piece 5 to any graduation on the millimetric rule 7, to know the gap separating the upper face of the stop-piece 5 on which the rod to be cut bears and the cutting point of the guillotine blade 14. The object of this tool, by combining the function of shears and of a marking tool is to give greater speed of use, greater precision and better comfort for use, when cutting to length metal rods which are involved in the manufacture of jewellery in particular, or, by extension, in carrying out any profession or leisure activity involving this type of work.

Description

Outil manuel de coure et de mise à la cote de tiges métalliques de faible section
Cette invention concerne un Outil de coupe å fonctionnement manuel avec mise à une cote préétablie de tiges de faible section, entrant notamment dans la réalisation de bijoux,
Par exemple : boucles d'oreilles, bracelets, et par extension, la réalisation Ce tous travaux nécessitant le sectionnement de fils en métaux précieux ou non précieux, de faible section, devant etre calibrés préalablement à un montage quelconque.Manual tool for routing and dimensioning small metal rods
This invention relates to a cutting tool with manual operation with setting to a pre-established dimension of stems of small section, used in particular in the production of jewelry,
For example: earrings, bracelets, and by extension, making This all work requiring the cutting of wires in precious or non-precious metals, of small section, having to be calibrated before any assembly.

Il arrive souvent, notamment lors de la réalisation de pièces en série, que le professionnel soit amené à couper rlusieurs centaines de tiges, ceci, à l'aide d'outils qui, tout en étant couramment utilisés, n'en sont pas moins rudi- mentaires. It often happens, especially when producing parts in series, that the professional has to cut several hundred stems, this, using tools which, while being commonly used, are no less rough - mental.

A l'heure actuelle, principalement dans le domaine de la biouterie-oaillerie, le i.de de sectionnement avec mise è la cote le plus usité, est l'utilisation conjointe d'une petite cisaille tenue d'une main, tandis que, de l'autre main, l'opérateur doit maintenir un trusquin ainsi que la tize ou le fil a mettre à la cote ; travail, certes simple, mais rendu fastidieux et parfois imprécis, en raison de la simultanéité de ces trois opérations, réalisées généralement sur des fils déjà de courte longueur. At the present time, mainly in the field of jewelry-cutlery, the most widely used sectioning i.d. is the joint use of a small shears held in one hand, while, with the other hand, the operator must maintain a scoreboard as well as the size or the wire to be dimensioned; work, certainly simple, but made tedious and sometimes imprecise, due to the simultaneity of these three operations, generally carried out on already short wires.

Des détails ce cette invention sont développés dans les pages suivantes, en se repérant au dessin annoté qui montre, à titre d'exemple non limitatif, une réalisation de cet outil. Details of this invention are developed in the following pages, with reference to the annotated drawing which shows, by way of nonlimiting example, an embodiment of this tool.

on invention réunit en un seul outil, le trusquin et la cisaille, simplifiant ainsi substantiellement le type de travail cité précédemment, en y apportant un gain de temps appréciable ainsi qu'une précision accrue ; son principe simple étant le garant de sa fiabilité. the invention brings together in a single tool, the gusset and the shears, thus substantially simplifying the type of work mentioned above, by bringing an appreciable saving of time as well as increased precision; its simple principle being the guarantor of its reliability.

La figure 1 est une vue Ce côté. Figure 1 is a side view.

ta figure 2 est une vue e plan par dessus. your Figure 2 is a plan view from above.

Cet outil consiste en une partie tubulaire creuse 1 munie, à sa base, d'une molette de réglage 2 destinée à moduler la profondeur de coupe, accompagnée d'une molette de bloquage 3 permettant l'immobilisation du dispositif dès que la profondeur de coupe désirée a été obtenue. This tool consists of a hollow tubular part 1 provided at its base with an adjustment wheel 2 intended to modulate the cutting depth, accompanied by a locking wheel 3 allowing the immobilization of the device as soon as the cutting depth has been obtained.

Ces deux derniers élèments étant solidaires d'un axe fileté 6 logé à l'intérieur de la partie tubulaire creuse 1, l'axe fileté 6 est relié à une butée mobile 5 ; sur celle-ci est gravé un repère étalonné 4. These last two elements being integral with a threaded axis 6 housed inside the hollow tubular part 1, the threaded axis 6 is connected to a movable stop 5; on it is engraved a calibrated mark 4.

La rotation de la molette 2 qui entraîne tout l'ensemble, permet de faire coîncider le repère étalonné 4 de la butée 5 avec les graduations d'une règle millimétrique 7 présente sur le côté de la partie tubulaire creuse 1. The rotation of the wheel 2 which drives the whole assembly makes it possible to make the calibrated mark 4 of the stop 5 coincide with the graduations of a millimeter rule 7 present on the side of the hollow tubular part 1.

Cette règle 7 est bordée d'une fenêtre 8 pratiquée sur le côté du tube 1 ; elle a pour fonction de encre visible le repère 4 de la butée 5 et de permettre ainsi l'ajustement de la longueur à couper, les chiffre choisi de la règle 7 entrant en correspondance avec le repère 4, indiquant alors l'écartement entre le point de cisaillement de la tige à couper et la face supérieure de la butée sur laquelle elle s'appuie. This rule 7 is bordered by a window 8 formed on the side of the tube 1; it has the function of visible ink mark 4 of the stop 5 and thus allow the adjustment of the length to be cut, the number chosen from rule 7 entering in correspondence with mark 4, then indicating the spacing between the point shear of the rod to be cut and the upper face of the stopper on which it rests.

il va de soi que la lecture de profondeur ce coupe peut se fa re par d'autres moyens que zen celui présenté -ci par exemple : adaptation d'un cadran à aiguille fixé sur la partie tubulaire creuse 1 et relié à l'axe 6 par un moyen quelconque de transmission ou éventuellement par affichage numérique lumineux ou mécanique. it goes without saying that the depth reading of this cut can be done by other means than zen that presented here, for example: adaptation of a dial with a needle fixed on the hollow tubular part 1 and connected to the axis 6 by any means of transmission or possibly by digital luminous or mechanical display.

Il en est de mes e pour les matériaux entrant dans la réalisation de plusieurs élèments de cet outil ; un faible poids pouvant être un atout supplèmentaire, il pourra être réalisé en grande partie à base de matières plastiques ou autres. It is the same for the materials used in the production of several elements of this tool; a low weight can be an additional advantage, it can be made largely from plastics or other materials.

la base de la partie tubulaire creuse 1, est fixé un porte-couteau Il monté sur goupille 12. the base of the hollow tubular part 1, is fixed a knife holder It mounted on pin 12.

Au sommet du porte-couteau 11, un logement est prévu, destiné à recevoir une lame guillotine en acier cémenté 14 celle-ci est maintenue dans son logement au moyen d'une vis 16. At the top of the knife holder 11, a housing is provided, intended to receive a cemented steel guillotine blade 14 which is held in its housing by means of a screw 16.

D'existence de ce logement avec fixation par vis, permet le remplacement de la lame guillotine 14 lorsque son usure le nécessite.The existence of this housing with screw fixing allows replacement of the guillotine blade 14 when its wear requires it.

Un système de cliquet peut également remplacer avan tageusement la vis 16, cette éventualité dépendant seulement d'une conception différente de la lame guillotine 14, ainsi que de son support, le porte-couteau 11. A ratchet system can also advantageously replace the screw 16, this eventuality depending only on a different design of the guillotine blade 14, as well as of its support, the knife holder 11.

Une simple pression de la paume de la main, maintenant l'outil, sur la poignée 9 montée sur goupille 10, fait coulisser l'ensemble porte-couteau 11, lame guillotine 14 sur le haut de la partie tubulaire creuse 1 ; celle-ci est constituée d'une pastille 15 à gorge percée de trous de différents diamètres, elle aussi réalisée en acier cémenté. A simple pressure of the palm of the hand, holding the tool, on the handle 9 mounted on pin 10, causes the knife holder assembly 11, guillotine blade 14 to slide on the top of the hollow tubular part 1; it consists of a groove disc 15 pierced with holes of different diameters, also made of case-hardened steel.

Des trous de différents diamètres pratiqués dans la pastille 15 sont destinés à servir de guide aux tiges que l'on désire sectionner. Holes of different diameters made in the disc 15 are intended to serve as a guide for the rods which it is desired to cut.

our ce faire, il suffit d'introduire dans l'un des trous de la pastille 15, une tige ayant le diamètre correspondant, jusqu'à ce que celle-ci se trouve en contact avec la partie supérieure de la butée 5 préalablement réglée sur la profondeur voulue. To do this, it suffices to introduce into one of the holes of the pellet 15, a rod having the corresponding diameter, until the latter is in contact with the upper part of the stop 5 previously adjusted to the desired depth.

un ressort ou coussinet en latex 13 logé entre le porte-couteau 11 et la partie tubulaire creuse 1, ramène l'ensemble porte-couteau 11,lame guillotine 14 à sa position initiale lorsque la pression de la main se relâche. a latex spring or pad 13 housed between the knife holder 11 and the hollow tubular part 1, returns the knife holder assembly 11, guillotine blade 14 to its initial position when the pressure of the hand is released.

Claims

Claims.

1 - Cutting tool for metal rods of small section, equipped with a cutting depth adjustment system, characterized in that it consists of a hollow tubular part 1 equipped, in its upper part, with a grooved pad 15 pierced with holes of different diameters serving as a guide for the metal rods to be calibrated, this pellet 15 further receiving a guillotine blade 14 fixed by means of a screw 16 in a housing formed on a knife-holder axis 11 comprising, in its upper part , a return spring or latex pad 13.

This knife-holder axis 11 is connected, in its lower part, to the hollow tubular body 1 by means of a pin 12, allowing this knife-holder axis 11, as well as to the guillotine blade 14 or which it carries, to slide at the bottom of the lozenge with a pierced groove 15 to the point of cutting the rod, previously introduced into one of the holes in the lozenge 15.

2 - Tool according to claim 1, characterized in that the hollow tubular part 1 contains a, cutting depth adjustment ecanlsme, constitutes' mainly of a calibrated stop 5 connected to a threaded ae 6 provided at its base an adjustment wheel 2 as well as a locking wheel 3, this assembly making it possible to modulate the distance separating the point this cut from the guillotine blade 14 from the upper face of the stop 5 against which the cut rod comes press.

The reading of this spacing is obtained by adjusting, by ro-a- tion of the dial 2, the mark 4 of the stop 5 made visible by means of a window 8, the chosen graduation of a millimeter rule 7 present on the hollow tubular part 1.

3 - Tool characterized, according to the preceding claims, by the meeting of a guillotine blade 14 and a pellet with a pierced groove 15, receiving the rod to be cut as well as the guillotine blade 14, all connected to a hollow tubular part 1 containing a calibrated depth-of-cut adjustment device, which can be read by means of a millimeter ruler on the side of the hollow tubular part 1 and bordered by a window intended to display the mark 4 of the stop 5.

After adjusting the desired cutting length, the cutting of the rod to be cut is obtained by a simple session of the palm of the hand holding the tool on the handle 9, this action having the effect of moving the door axis knife 11 carrying the guillotine blade 14, a deflection mechanism 13 returning, after each operation, the assembly to its initial position.