EP0869862A1 - Device for assembling a clamping jaw - Google Patents

Device for assembling a clamping jaw

Info

Publication number
EP0869862A1
EP0869862A1 EP97919123A EP97919123A EP0869862A1 EP 0869862 A1 EP0869862 A1 EP 0869862A1 EP 97919123 A EP97919123 A EP 97919123A EP 97919123 A EP97919123 A EP 97919123A EP 0869862 A1 EP0869862 A1 EP 0869862A1
Authority
EP
European Patent Office
Prior art keywords
recess
parts
jaw
relief
heel
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
EP97919123A
Other languages
German (de)
French (fr)
Other versions
EP0869862B1 (en
Inventor
Hervé Gilbert Maurice GOMAS
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.)
Bost Garnache Industries BGI SAS
Original Assignee
Bost Garnache Industries BGI SAS
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 Bost Garnache Industries BGI SAS filed Critical Bost Garnache Industries BGI SAS
Publication of EP0869862A1 publication Critical patent/EP0869862A1/en
Application granted granted Critical
Publication of EP0869862B1 publication Critical patent/EP0869862B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G3/00—Attaching handles to the implements
    • B25G3/02—Socket, tang, or like fixings
    • B25G3/08—Socket, tang, or like fixings with dovetail or other groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/02—Jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/02—Jaws
    • B25B7/04—Jaws adjustable

Definitions

  • the present invention relates to a device for assembling joined and assembled tool parts, these parts comprising on the one hand a tool jaw comprising a fixing heel, and on the other hand a support piece, according to the preamble of claim 1.
  • the assembly of a tool jaw with a support piece is generally carried out by means of rivets which pass through corresponding orifices of the two pieces .
  • the subject of the invention is a clamp of the aforementioned type, characterized by the characterizing part of claim 1.
  • the pliers according to the invention may include one or more of the features of claims 2 to 12. Examples of embodiments of the invention will now be described with reference to the appended drawings, in which:
  • FIG. 1 shows in perspective a jaw of multiple pliers according to the invention
  • Figure 2 is a plan view, on a larger scale, of this jaw;
  • Figure 3 is a cross-sectional view of a sheet metal branch piece to be assembled with the jaw, this view being taken along line III-III of Figure 4;
  • Figure 4 is a plan view of the part of Figure 3;
  • FIG. 5 is a plan view of a multi-grip pliers produced with the parts of Figures 1, 2 on the one hand, 3, 4 on the other hand;
  • FIG. 7 is a sectional view of the same clamp, taken along line VII-VII of Figure 6;
  • FIG. 8 is a sectional view, on a larger scale, of a detail of the clamp, taken along line VIII-VIII of Figure 7;
  • FIG. 9 is a partial plan view of a variant
  • FIG. 10 is an enlarged view, taken in section along the line X-X of Figure 9;
  • FIG. 11 is a partial cross-sectional view of a second variant
  • FIG. 12 is a partial view in longitudinal section of a third variant
  • FIG. 13 shows needle-nose pliers dishes according to the invention
  • Figures 14 and 15 are partial views taken respectively in section along lines XIV and XV of Figure 13.
  • Figures 1 and 2 a single jaw 1 for the pliers 2 shown in Figures 5 to 7.
  • the clamp 2 comprises a monobloc branch 3 passed through, produced by forging, a hinge pin 4 secured to this branch 3, and a passing branch 5 secured to the jaw 1.
  • This branch 5 is itself made up of two pieces 6, 7 of elongated shape, symmetrical to each other with respect to the median plane P of the clamp, which is the section plane of Figure 7.
  • the jaw 1 which is called the upper jaw, is symmetrical with respect to its own median plane Q, which, when the clamp is assembled, coincides with the plane P.
  • the jaw forms a jaw 8 of great thickness, the lower active face of which bears striations 9, and, at the rear of this jaw, a flat fixing heel 10.
  • the thickness e . of the heel is significantly less than the thickness E of the jaw and is typically of the order of half of this thickness E. For example, e_ is of the order of 4 mm, and E of the order 9 mm.
  • the limit between the jaw 8 and the heel 10 forms, on either side thereof, a rectilinear shoulder 11 perpendicular to the plane Q.
  • the heel is crossed by a cutout 12.
  • the branch 3 is an elongated piece which constitutes, on one side of the axis 4, the upper handle 13 of the tool, and, on the other side of the axis 4, the lower jaw 14 of the clamp, made of material.
  • the upper side of this jaw has ridges 15, and the jaw 14 has the same thickness E as the jaw 1.
  • This piece 6 forms at one end the lower handle 16 of the tool, and it has an intermediate part through which a light 116 passes.
  • the latter is, as is usual in pliers, of elongated shape and with wavy edges, for allow positioning of axis 4 in any one of several positions along the lumen.
  • the part 6 comprises, at the front of its intermediate part, a jaw-carrying part 17 whose lower edge 18 is rectilinear.
  • Part 17 is provided with a semi-cut which forms a relief 19 projecting from its inner face, with an orifice 20 produced by cutting approximately in the center of this relief, and with an orifice 21 produced by cutting in before the same relief.
  • a semi-cut consists of a translation of the sheet perpendicular to its plane, over a distance less than its thickness ( Figure 3).
  • the cutout 12 is non-circular, more particularly roughly triangular with rounded corners, and comprises: a rectilinear front edge 24 parallel to the shoulders 11; an arched upper edge 25 and a first rectilinear rear edge 26, both parallel to the outline 22; and a second rectilinear rear edge 27 which forms an acute angle, of the order of 45 °, with the edge 24, and an obtuse angle, of the order of 120 °, with the edge 26.
  • the edges 26 and 24 form between them a small acute angle, of the order of 15 °.
  • the relief 19 of the part 6 has the shape of a trapezoid with rounded corners which roughly matches the rear half of the cutout 12, three of its ribs cooperating with the edges 24, 26 and 27 thereof. This appears in dashed lines in FIG. 2 and in solid lines in FIG. 7.
  • the front orifice 21 is inscribed in the rounded connection between the edges 24 and 25 ( Figure 2).
  • the parts 6 and 7 are placed facing each other, on either side of the branch 3 and of the jaw 1, and the two reliefs 19 are fitted into the cutout 12.
  • the two reliefs leave between them a free space, as shown in Figure 8. This perfectly positions the heel 10, parallel to its general plane, relative to the parts 6 and 7, and brings each shoulder 11 into contact with the corresponding edge 18.
  • the jaw 1 is perfectly positioned by the cooperation of the reliefs 19 with the cutout 12, as well as by the cooperation of the shoulders 11 of the jaw 1 and of the edges 18 of the parts 6 and 7, these shoulders and these edges forming bearing surfaces which take up the clamping forces. Consequently, the front rivets 29 are not subjected to shear during use of the. clamp and therefore only serve to keep the three parts 1, 6 and 7 pressed against each other.
  • the passage openings 20 and 21 of these rivets are formed in the two sheet metal parts 6, 7, the thickness of which is typically of the order of 2.5 mm, and can therefore be produced by simple cutting from these two parts with a very small diameter, for example 3 mm. This would not be possible through the heel 10, whose thickness e.
  • the reliefs 19 conform to the whole of the cutout 12, and two orifices 20 are cut out in each of these reliefs for the passage of the two front rivets 29.
  • the reliefs 19 can optionally be fitted into cutting 12.
  • the heel 10 is full and has on each face a relief 19A, while each part 6, 7 comprises a semi-cut projecting outwards which forms an interior recess 12A .
  • Each relief 19A matches at least part of the contour of the corresponding recess 12A, in the sense explained above with reference to Figures 1 to 10, and the orifices 20, 21 and the rivets before 29 are arranged correspondingly.
  • the heel has at least one rivet passage orifice, which is preferably housed outside the zones 19A in excess thickness. It should be noted that in this variant, in order to obtain one or more orifices with a diameter as small as previously in the heel, the heel must be drilled by machining.
  • the heel 10 again has a cutout 12, which however has an oblong shape, with rounded ends and a major axis roughly parallel to the upper edge of the parts 6 and 7.
  • the latter are devoid of reliefs 19 and have two cut-out holes 21, each inscribed in an arc at the longitudinal end of the cut-out.
  • the assembly of parts 1, 6 and 7 is carried out simply by means of the two front rivets 29 through these orifices 21.
  • These two rivets have their rod which swells during their compression and which consequently apply firmly against the rounded edges of end of the cut.
  • the rivets work in shear.
  • the orifices 21 and the rivets have a larger diameter than in the variants previously described.
  • FIGS 13 to 15 show the application of the invention to flat nose pliers.
  • This clamp comprises two jaws 30 monoblocks each assembled to a branch 31. These two jaws 30 are articulated to each other by a fixed axis 32. They form at the front of this axis a jaw proper or beak 33 and are extended, beyond the axis 32, by a rear fixing heel 34 made of material, of reduced thickness.
  • Each heel has a non-circular cutout 12, constituted in this example by an arc of front circle 35 of relatively large radius, by an arc of rear circle 36 of relatively small radius, and by the two tangents common to these two arcs.
  • Each heel 34 is passed between two pieces 37, 38 of sheet metal which together form the corresponding branch 31 and which are each provided with a circular cut-out 19.
  • a rivet 29 passes through central holes 20 in relief 19, and another rivet 29 passes through rear holes 21 of parts 37 and 38 which fit into the rear arcs 36.
  • each sheet metal part has a rectilinear edge 39 which cooperates with a rectilinear shoulder of the part 30 located at the root of the heel 34. It should be noted that, when the branch of the clamp is positioned relative to the added part 1, 30 by means of an edge such as 18 or 39, the assembly can, as a variant, comprise circular reliefs such as the reliefs 19 in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Insertion Pins And Rivets (AREA)
  • Harvester Elements (AREA)
  • Processing Of Terminals (AREA)
  • Thermistors And Varistors (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Clamps And Clips (AREA)

Abstract

Pliers-like tools having opposing and cooperating jaw elements wherein one of the jaw elements includes a heelpiece having a non-circular recess formed therein and in which a mechanical element associated with a jaw carrier portion of a handle is selectively inserted so as to be in non-movable relationship with respect to the one jaw element. Mechanical elements are provided for fastening the handle to the one jaw element at the area of the recess.

Description

Dispositif d'assemblage d'un mors d'outil La présente invention est relative a un dispositif d'assemblage de pièces d'outil accolées et assemblées, ces pièces comprenant d'une part un mors de l'outil comportant un talon de fixation, et d'autre part une pièce de support, suivant le préambule de la revendication 1. Device for assembling a tool jaw The present invention relates to a device for assembling joined and assembled tool parts, these parts comprising on the one hand a tool jaw comprising a fixing heel, and on the other hand a support piece, according to the preamble of claim 1.
L'assemblage d'un mors d'outil avec une pièce de support, par exemple d'un mors de pince multiprise avec une pièce de branche de la pince, s'effectue généralement au moyen de rivets qui traversent des orifices correspondants des deux pièces.The assembly of a tool jaw with a support piece, for example a multi-grip pliers jaw with a branch piece of the pliers, is generally carried out by means of rivets which pass through corresponding orifices of the two pieces .
Si l'on veut réaliser le mors sous forme monobloc, plusieurs difficultés se présentent. D'une part, on ne peut pas réaliser dans le mors par simple découpe les perçages de petit diamètre nécessaires. D'autre part, l'assemblage est fragile du fait des fortes contraintes de cisaillement qui s'exercent sur les rivets lors de l'utilisation de la pince.If you want to make the jaw in one piece, several difficulties arise. On the one hand, it is not possible to make in the jaw by simple cutting the small diameter holes required. On the other hand, the assembly is fragile due to the high shear stresses which are exerted on the rivets when the pliers are used.
On connaît par ailleurs des dispositifs d'assemblage du type décrit dans le préambule de la revendication 1 (GB-A-2 067 451, CH-A-685 749) . Ces dispositifs connus présentent toutefois le problème de perçage indique ci-dessus, et, en outre, ils sont relativement encombrants. L'invention a pour but de permettre un assemblage très économique et compact mais néanmoins fiable des pièces accolées en question.There are also known assembly devices of the type described in the preamble of claim 1 (GB-A-2 067 451, CH-A-685 749). These known devices however have the drilling problem indicated above, and, in addition, they are relatively bulky. The invention aims to allow a very economical and compact but nevertheless reliable assembly of the attached parts in question.
A cet effet, l'invention a pour objet une pince du type précité, caractérisée par la partie caractérisante de la revendication 1.To this end, the subject of the invention is a clamp of the aforementioned type, characterized by the characterizing part of claim 1.
La pince suivant l'invention peut comporter une ou plusieurs des caractéristiques des revendications 2 à 12. Des exemples de réalisation de l'invention vont maintenant être décrits en regard des dessins annexés, sur lesquels :The pliers according to the invention may include one or more of the features of claims 2 to 12. Examples of embodiments of the invention will now be described with reference to the appended drawings, in which:
- la Figure 1 représente en perspective un mors d'une pince multiple conforme a l'invention;- Figure 1 shows in perspective a jaw of multiple pliers according to the invention;
- la Figure 2 est une vue en plan, a plus grande échelle, de ce mors; la Figure 3 est une vue en coupe transversale d'une pièce de branche en tôle à assembler avec le mors, cette vue étant prise suivant la ligne III-III de la Figure 4;- Figure 2 is a plan view, on a larger scale, of this jaw; Figure 3 is a cross-sectional view of a sheet metal branch piece to be assembled with the jaw, this view being taken along line III-III of Figure 4;
- la Figure 4 est une vue en plan de la pièce de la Figure 3;- Figure 4 is a plan view of the part of Figure 3;
- la Figure 5 est une vue en plan d'une pince multiprise réalisée avec les pièces des Figures 1, 2 d'une part, 3, 4 d'autre part;- Figure 5 is a plan view of a multi-grip pliers produced with the parts of Figures 1, 2 on the one hand, 3, 4 on the other hand;
- la Figure 6 est une vue en bout de la même pince;- Figure 6 is an end view of the same clamp;
- la Figure 7 est une vue en coupe de la même pince, prise suivant la ligne VII-VII de la Figure 6;- Figure 7 is a sectional view of the same clamp, taken along line VII-VII of Figure 6;
- la Figure 8 est une vue en coupe, à plus grande échelle, d'un détail de la pince, prise suivant la ligne VIII-VIII de la Figure 7;- Figure 8 is a sectional view, on a larger scale, of a detail of the clamp, taken along line VIII-VIII of Figure 7;
- la Figure 9 est une vue partielle en plan d'une variante;- Figure 9 is a partial plan view of a variant;
- la Figure 10 est une vue à plus grande échelle, prise en coupe suivant la ligne X-X de la Figure 9;- Figure 10 is an enlarged view, taken in section along the line X-X of Figure 9;
- la Figure 11 est une vue partielle en coupe transversale d'une deuxième variante;- Figure 11 is a partial cross-sectional view of a second variant;
- la Figure 12 est une vue partielle en coupe longitudinale d'une troisième variante;- Figure 12 is a partial view in longitudinal section of a third variant;
- la Figure 13 représente une pince à becs plats conforme a l'invention; et les Figures 14 et 15 sont des vues partielles prises respectivement en coupe suivant les lignes XIV et XV de la Figure 13. On a représenté sur les Figures 1 et 2 un mors monobloc 1 destiné à la pince multiprise 2 représentée sur les Figures 5 à 7. Outre ce mors, la pince 2 comprend une branche monobloc 3 entrepassée, réalisée par forgeage, un axe d'articulation 4 solidaire de cette branche 3, et une branche entrepassante 5 solidaire du mors 1. Cette branche 5 est elle-même constituée de deux pièces 6, 7 de forme allongée, symétriques l'une de l'autre par rapport au plan médian P de la pince, qui est le plan de coupe de la Figure 7. Le mors 1, qui est dit mors supérieur, est symétrique par rapport à son propre plan médian Q, lequel, lorsque la pince est assemblée, est confondu avec le plan P. Le mors forme une mâchoire 8 de forte épaisseur, dont la face active inférieure porte des striures 9, et, à l'arrière de cette mâchoire, un talon de fixation plan 10. L'épaisseur e. du talon est nettement inférieure à l'épaisseur E de la mâchoire et est typiquement de l'ordre de la moitié de cette épaisseur E. A titre d'exemple, e_ est de l'ordre de 4 mm, et E de l'ordre de 9 mm.- Figure 13 shows needle-nose pliers dishes according to the invention; and Figures 14 and 15 are partial views taken respectively in section along lines XIV and XV of Figure 13. There is shown in Figures 1 and 2 a single jaw 1 for the pliers 2 shown in Figures 5 to 7. In addition to this jaw, the clamp 2 comprises a monobloc branch 3 passed through, produced by forging, a hinge pin 4 secured to this branch 3, and a passing branch 5 secured to the jaw 1. This branch 5 is itself made up of two pieces 6, 7 of elongated shape, symmetrical to each other with respect to the median plane P of the clamp, which is the section plane of Figure 7. The jaw 1, which is called the upper jaw, is symmetrical with respect to its own median plane Q, which, when the clamp is assembled, coincides with the plane P. The jaw forms a jaw 8 of great thickness, the lower active face of which bears striations 9, and, at the rear of this jaw, a flat fixing heel 10. The thickness e . of the heel is significantly less than the thickness E of the jaw and is typically of the order of half of this thickness E. For example, e_ is of the order of 4 mm, and E of the order 9 mm.
La limite entre la mâchoire 8 et le talon 10 forme, de part et d'autre de celui-ci, un épaulement rectiligne 11 perpendiculaire au plan Q. De plus, sur une partie substantielle de sa surface, le talon est traversé par une découpe 12.The limit between the jaw 8 and the heel 10 forms, on either side thereof, a rectilinear shoulder 11 perpendicular to the plane Q. In addition, over a substantial part of its surface, the heel is crossed by a cutout 12.
La branche 3 est une pièce de forme allongée qui constitue, d'un côté de l'axe 4, la poignée supérieure 13 de l'outil, et, de l'autre côté de l'axe 4, le mors inférieur 14 de la pince, venu de matière. Le côté supérieur de ce mors comporte des striures 15, et le mors 14 a la même épaisseur E que le mors 1.The branch 3 is an elongated piece which constitutes, on one side of the axis 4, the upper handle 13 of the tool, and, on the other side of the axis 4, the lower jaw 14 of the clamp, made of material. The upper side of this jaw has ridges 15, and the jaw 14 has the same thickness E as the jaw 1.
On décrira maintenant l'une des deux pièces de la branche 5, a savoir la pièce 6.We will now describe one of the two parts of branch 5, namely part 6.
Cette pièce 6 forme a une extrémité la poignée inférieure 16 de l'outil, et elle comporte une partie intermédiaire traversée par une lumière 116. Cette dernière est, comme il est habituel dans les pinces multiprises, de forme allongée et à bords ondulés, pour permettre le positionnement de l'axe 4 dans l'une quelconque de plusieurs positions le long de la lumière.This piece 6 forms at one end the lower handle 16 of the tool, and it has an intermediate part through which a light 116 passes. The latter is, as is usual in pliers, of elongated shape and with wavy edges, for allow positioning of axis 4 in any one of several positions along the lumen.
La pièce 6 comporte, à l'avant de sa partie intermédiaire, une partie porte-mors 17 dont le bord inférieur 18 est rectiligne. La partie 17 est munie d'une semi-découpe qui forme un relief 19 en saillie sur sa face intérieure, d'un orifice 20 réalisé par découpe à peu près au centre de ce relief, et d'un orifice 21 réalisé par découpe en avant du même relief. Comme il est bien connu, une semi-découpe consiste en une translation de la tôle perpendiculairement à son plan, sur une distance inférieure a son épaisseur (Figure 3) .The part 6 comprises, at the front of its intermediate part, a jaw-carrying part 17 whose lower edge 18 is rectilinear. Part 17 is provided with a semi-cut which forms a relief 19 projecting from its inner face, with an orifice 20 produced by cutting approximately in the center of this relief, and with an orifice 21 produced by cutting in before the same relief. As is well known, a semi-cut consists of a translation of the sheet perpendicular to its plane, over a distance less than its thickness (Figure 3).
En considérant les Figures 2, 4, 5 et 7, on voit que le contour supérieur 22 du talon 10 du mors 1 suit celui de la partie 17, tandis que son contour inférieur 23 est situé légèrement au-dessus du contour supérieur du mors inférieur 14 lorsque la pince est fermée avec les mors au contact l'un de l'autre.Considering Figures 2, 4, 5 and 7, it can be seen that the upper contour 22 of the heel 10 of the jaw 1 follows that of the part 17, while its lower contour 23 is situated slightly above the upper contour of the lower jaw 14 when the clamp is closed with the jaws in contact with one another.
Par ailleurs, la découpe 12 est non circulaire, plus particulièrement grossièrement triangulaire à coins arrondis, et comporte : un bord avant rectiligne 24 parallèle aux epaulements 11; un bord supérieur arqué 25 et un premier bord arrière rectiligne 26, tous deux parallèles au contour 22; et un second bord arrière rectiligne 27 qui forme un angle aigu, de l'ordre de 45°, avec le bord 24, et un angle obtus, de l'ordre de 120°, avec le bord 26. Les bords 26 et 24 forment entre eux un angle aigu petit, de l'ordre de 15°.Furthermore, the cutout 12 is non-circular, more particularly roughly triangular with rounded corners, and comprises: a rectilinear front edge 24 parallel to the shoulders 11; an arched upper edge 25 and a first rectilinear rear edge 26, both parallel to the outline 22; and a second rectilinear rear edge 27 which forms an acute angle, of the order of 45 °, with the edge 24, and an obtuse angle, of the order of 120 °, with the edge 26. The edges 26 and 24 form between them a small acute angle, of the order of 15 °.
Le relief 19 de la pièce 6 a la forme d'un trapèze à coins arrondis qui épouse à peu près la moitié arrière de la découpe 12, trois de ses côtes coopérant avec les bords 24, 26 et 27 de celle-ci. Ceci apparaît en traits mixtes sur la Figure 2 et en traits pleins sur la Figure 7. De plus, lorsque le relief 19 est ainsi emboîté dans la découpe 12, l'orifice avant 21 s'inscrit dans l'arrondi de liaison entre les bords 24 et 25 (Figure 2) . Pour assembler la pince, on dispose les pièces 6 et 7 en vis-à-vis, de part et d'autre de la branche 3 et du mors 1, et on emboîte les deux reliefs 19 dans la découpe 12. Les deux reliefs laissent entre eux un espace libre, comme représenté sur la Figure 8. Ceci positionne parfaitement le talon 10, parallèlement à son plan général, par rapport aux pièces 6 et 7, et amène chaque épaulement 11 au contact du bord 18 correspondant. On dispose de plus une entretoise 28 (Figure 7) entre les parties arrières 16 des pièces 6 et 7.The relief 19 of the part 6 has the shape of a trapezoid with rounded corners which roughly matches the rear half of the cutout 12, three of its ribs cooperating with the edges 24, 26 and 27 thereof. This appears in dashed lines in FIG. 2 and in solid lines in FIG. 7. In addition, when the relief 19 is thus fitted into the cutout 12, the front orifice 21 is inscribed in the rounded connection between the edges 24 and 25 (Figure 2). To assemble the clamp, the parts 6 and 7 are placed facing each other, on either side of the branch 3 and of the jaw 1, and the two reliefs 19 are fitted into the cutout 12. The two reliefs leave between them a free space, as shown in Figure 8. This perfectly positions the heel 10, parallel to its general plane, relative to the parts 6 and 7, and brings each shoulder 11 into contact with the corresponding edge 18. There is also a spacer 28 (Figure 7) between the rear parts 16 of parts 6 and 7.
L'assemblage des alors complété au moyen de quatre rivets 29, dont deux traversent des orifices correspondants des parties 16 et de l'entretoise 28, un traverse les orifices 20 des deux reliefs 19, et le dernier traverse les deux orifices 21 en passant à travers les découpes 12. La compression de ce dernier rivet provoque le gonflement de sa tige, qui la plaque fermement dans l'arc de cercle compris entre les bords 24 et 25 de la découpe 12.The assembly of the then completed by means of four rivets 29, two of which pass through corresponding orifices of the parts 16 and of the spacer 28, one passes through the orifices 20 of the two reliefs 19, and the last passes through the two orifices 21 passing through through the cutouts 12. The compression of this last rivet causes the swelling of its rod, which presses it firmly in the arc of a circle between the edges 24 and 25 of cutout 12.
Enfin, on met en place l'axe d'articulation 4 de la pince.Finally, the hinge pin 4 of the clamp is put in place.
Le mors 1 est parfaitement positionné par la coopération des reliefs 19 avec la découpe 12, ainsi que par la coopération des epaulements 11 du mors 1 et des bords 18 des pièces 6 et 7, ces epaulements et ces bords formant des surfaces d'appui qui reprennent les efforts de serrage. Par suite, les rivets avant 29 ne sont pas sollicités en cisaillement pendant l'utilisation de la. pince et ne servent donc qu'à maintenir les trois pièces 1, 6 et 7 pressées les unes sur les autres. De plus, les orifices de passage 20 et 21 de ces rivets sont ménagés dans les deux pièces 6, 7 en tôle, dont l'épaisseur est typiquement de l'ordre de 2,5 mm, et peuvent donc être réalisés par simple découpe dans ces deux pièces avec un très faible diamètre, par exemple 3 mm. Ceci ne serait pas possible à travers le talon 10, dont l'épaisseur e. est de l'ordre de 4 mm comme indiqué plus haut. Dans la variante des Figures 9 et 10, les reliefs 19 épousent la totalité de la découpe 12, et deux orifices 20 sont découpés dans chacun de ces reliefs pour le passage des deux rivets avant 29. On peut éventuellement emboîter à force les reliefs 19 dans la découpe 12.The jaw 1 is perfectly positioned by the cooperation of the reliefs 19 with the cutout 12, as well as by the cooperation of the shoulders 11 of the jaw 1 and of the edges 18 of the parts 6 and 7, these shoulders and these edges forming bearing surfaces which take up the clamping forces. Consequently, the front rivets 29 are not subjected to shear during use of the. clamp and therefore only serve to keep the three parts 1, 6 and 7 pressed against each other. In addition, the passage openings 20 and 21 of these rivets are formed in the two sheet metal parts 6, 7, the thickness of which is typically of the order of 2.5 mm, and can therefore be produced by simple cutting from these two parts with a very small diameter, for example 3 mm. This would not be possible through the heel 10, whose thickness e. is of the order of 4 mm as indicated above. In the variant of Figures 9 and 10, the reliefs 19 conform to the whole of the cutout 12, and two orifices 20 are cut out in each of these reliefs for the passage of the two front rivets 29. The reliefs 19 can optionally be fitted into cutting 12.
Comme schématisé sur la Figure 11, dans une autre variante, le talon 10 est plein et comporte sur chaque face un relief 19A, tandis que chaque pièce 6, 7 comporte une semi-découpe en saillie vers l'extérieur qui forme un évidement intérieur 12A. Chaque relief 19A épouse une partie au moins du contour de l' évidement 12A correspondant, au sens expliqué plus haut en regard des Figures 1 à 10, et des orifices 20, 21 et des rivets avant 29 sont disposes de manière correspondante. Le talon comporte au moins un orifice de passage de rivet, qui est de préférence ménage en dehors des zones 19A en surepaisseur . Il est a noter que dans cette variante, pour obtenir un ou des orifices de diamètre aussi petit que précédemment dans le talon, le talon doit être perce par usinage.As shown diagrammatically in FIG. 11, in another variant, the heel 10 is full and has on each face a relief 19A, while each part 6, 7 comprises a semi-cut projecting outwards which forms an interior recess 12A . Each relief 19A matches at least part of the contour of the corresponding recess 12A, in the sense explained above with reference to Figures 1 to 10, and the orifices 20, 21 and the rivets before 29 are arranged correspondingly. The heel has at least one rivet passage orifice, which is preferably housed outside the zones 19A in excess thickness. It should be noted that in this variant, in order to obtain one or more orifices with a diameter as small as previously in the heel, the heel must be drilled by machining.
Dans la variante de la Figure 12, le talon 10 comporte de nouveau une découpe 12, qui a toutefois une forme oblongue, avec des extrémités arrondies et un grand axe à peu près parallèle au bord supérieur des pièces 6 et 7. Ces dernières sont dépourvues des reliefs 19 et comportent deux orifices découpes 21, inscrits chacun dans un arc d'extrémité longitudinale de la découpe. L'assemblage des pièces 1, 6 et 7 est réalisé simplement au moyen des deux rivets avants 29 à travers ces orifices 21. Ces deux rivets ont leur tige qui gonflent lors de leur compression et qui s'appliquent par suite fermement contre les arrondis d'extrémité de la découpe. II est à noter que dans cette variante, les rivets travaillent en cisaillement. Par suite, les orifices 21 et les rivets ont un diamètre plus grand que dans les variantes précédemment décrites.In the variant of FIG. 12, the heel 10 again has a cutout 12, which however has an oblong shape, with rounded ends and a major axis roughly parallel to the upper edge of the parts 6 and 7. The latter are devoid of reliefs 19 and have two cut-out holes 21, each inscribed in an arc at the longitudinal end of the cut-out. The assembly of parts 1, 6 and 7 is carried out simply by means of the two front rivets 29 through these orifices 21. These two rivets have their rod which swells during their compression and which consequently apply firmly against the rounded edges of end of the cut. It should be noted that in this variant, the rivets work in shear. As a result, the orifices 21 and the rivets have a larger diameter than in the variants previously described.
Les Figures 13 à 15 montrent l'application de l'invention à une pince à becs plats. Cette pince comprend deux mors 30 monoblocs assemblés chacun à une branche 31. Ces deux mors 30 sont articulés l'un a l'autre par un axe fixe 32. Ils forment à l'avant de cet axe un mors proprement dit ou bec 33 et se prolongent, au-delà de l'axe 32, par un talon de fixation arrière 34 venu de matière, d'épaisseur réduite.Figures 13 to 15 show the application of the invention to flat nose pliers. This clamp comprises two jaws 30 monoblocks each assembled to a branch 31. These two jaws 30 are articulated to each other by a fixed axis 32. They form at the front of this axis a jaw proper or beak 33 and are extended, beyond the axis 32, by a rear fixing heel 34 made of material, of reduced thickness.
Chaque talon présente une découpe 12 non circulaire, constituée dans cet exemple par un arc de cercle avant 35 de rayon relativement grand, par un arc de cercle arrière 36 de rayon relativement petit, et par les deux tangentes communes à ces deux arcs.Each heel has a non-circular cutout 12, constituted in this example by an arc of front circle 35 of relatively large radius, by an arc of rear circle 36 of relatively small radius, and by the two tangents common to these two arcs.
Chaque talon 34 est entrepassé entre deux pièces 37, 38 en tôle qui forment ensemble la branche 31 correspondante et qui sont munies chacune d'une serai- découpe circulaire 19. La semi-decoupe 19, en saillie vers l'intérieur, forme un relief qui épouse l'arc avant 35. Un rivet 29 traverse des orifices centraux 20 des reliefs 19, et un autre rivet 29 traverse des orifices arrière 21 des pièces 37 et 38 qui s'inscrivent dans les arcs arrière 36. A l'avant, chaque pièce en tôle présente un bord rectiligne 39 qui coopère avec un épaulement rectiligne de la pièce 30 situé à la racine du talon 34. II est à noter que, lorsque la branche de la pince est positionnée par rapport à la pièce rapportée 1, 30 au moyen d'un bord tel que 18 ou 39, l'assemblage peut, en variante, comprendre des reliefs circulaires tels que les reliefs 19 de la Figure 13, emboîtés dans un évidement lui-même circulaire. Lorsque les reliefs circulaires sont constitués par des semi-découpes de pièces en tôle, on obtient encore l'avantage de pouvoir réaliser des orifices à rivets de petit diamètre par découpage . On comprend que l'invention s'applique également à la fixation de tout mors d'outil sur une pièce de support, laquelle peut être réalisée non seulement en tôle mais également en matière plastique, en aluminium, etc. Each heel 34 is passed between two pieces 37, 38 of sheet metal which together form the corresponding branch 31 and which are each provided with a circular cut-out 19. The semi-cut 19, projecting inwards, forms a relief which matches the front arch 35. A rivet 29 passes through central holes 20 in relief 19, and another rivet 29 passes through rear holes 21 of parts 37 and 38 which fit into the rear arcs 36. At the front, each sheet metal part has a rectilinear edge 39 which cooperates with a rectilinear shoulder of the part 30 located at the root of the heel 34. It should be noted that, when the branch of the clamp is positioned relative to the added part 1, 30 by means of an edge such as 18 or 39, the assembly can, as a variant, comprise circular reliefs such as the reliefs 19 in FIG. 13, fitted into a recess which is itself circular. When the circular reliefs are constituted by semi-cuts of sheet metal parts, the advantage is still obtained of being able to produce rivet orifices of small diameter by cutting. It is understood that the invention also applies to the fixing of any tool jaw on a support piece, which can be produced not only in sheet metal but also in plastic, aluminum, etc.

Claims

REVENDICATIONS
1 - Dispositif d'assemblage de pièces d'outil (1, 6, 7; 30, 37, 38) accolées et assemblées, ces pièces comprenant d'une part un mors (1; 30) de l'outil compor- tant un talon (10) de fixation, et d'autre part une pièce de support (6, 7; 37, 38), le dispositif comprenant, dans une première desdites pièces, un évidement (12; 12A) , notamment non circulaire, et des moyens mécaniques (19; 19A; 29) solidaires d'une seconde desdites pièces et prenant appui sur le bord de l' évidement de manière à positionner les première et seconde pièces l'une par rapport à l'autre parallèlement à leur plan général, caractérisé en ce qu'il comprend au moins un organe (29) de fixation mécanique des pièces entre elles, notamment un rivet, qui traverse ledit évidement (12; 12A) .1 - Device for assembling tool parts (1, 6, 7; 30, 37, 38) joined and assembled, these parts comprising on the one hand a jaw (1; 30) of the tool comprising a heel (10) for fixing, and on the other hand a support piece (6, 7; 37, 38), the device comprising, in a first of said pieces, a recess (12; 12A), in particular non-circular, and mechanical means (19; 19A; 29) integral with a second of said parts and bearing on the edge of the recess so as to position the first and second parts relative to each other parallel to their general plane, characterized in that it comprises at least one member (29) for mechanically fixing the parts to one another, in particular a rivet, which passes through said recess (12; 12A).
2 - Dispositif suivant la revendication 1, caractérisé en ce que 1 'évidement (12) est une découpe, notamment pratiquée dans le talon de fixation (10; 34) du mors (1; 30) . 3 - Dispositif suivant la revendication 1 ou2 - Device according to claim 1, characterized in that one recess (12) is a cut, in particular made in the fixing heel (10; 34) of the jaw (1; 30). 3 - Device according to claim 1 or
2, caractérisé en ce que le talon (10; 34) est entrepassé entre ladite seconde pièce (6; 37) et une troisième pièce (7; 38) .2, characterized in that the heel (10; 34) is passed between said second part (6; 37) and a third part (7; 38).
4 - Dispositif suivant la revendication 3, caractérisé en ce que la troisième pièce est sensiblement symétrique de la seconde pièce dans la région de l' évidement .4 - Device according to claim 3, characterized in that the third part is substantially symmetrical with the second part in the region of the recess.
5 - Dispositif suivant l'une quelconque des revendications 1 à 4, caractérisé en ce que lesdits moyens mécaniques comprennent un relief (19; 19A) de ladite seconde pièce (6, 7; 10; 37, 38) qui épouse une partie au moins du contour de 1 ' évidement (12; 12A) en assurant ledit positionnement.5 - Device according to any one of claims 1 to 4, characterized in that said mechanical means comprise a relief (19; 19A) of said second part (6, 7; 10; 37, 38) which marries a at least part of the outline of the recess (12; 12A) ensuring said positioning.
6 - Dispositif suivant la revendication 5, caractérisé en ce qu'il comprend au moins un organe de fixation mécanique (29) , notamment un rivet, qui traverse l' évidement (12) à côté dudit relief (19), et/ou au moins un organe de fixation mécanique (29) , notamment un rivet, qui traverse des orifices (20) du relief (19) de ladite seconde pièce (6, 7; 37, 38) . 7 - Dispositif suivant l'une quelconque des revendications 1 à 4, caractérise en ce que lesdits moyens mécaniques comprennent un relief (19; 19A) de ladite seconde pièce (6, 7; 10; 37, 38) qui épouse sensiblement la totalité du contour de 1 ' évidement (12; 12A) en assurant ledit positionnement.6 - Device according to claim 5, characterized in that it comprises at least one mechanical fixing member (29), in particular a rivet, which passes through the recess (12) next to said relief (19), and / or at at least one mechanical fixing member (29), in particular a rivet, which passes through orifices (20) in the relief (19) of said second part (6, 7; 37, 38). 7 - Device according to any one of claims 1 to 4, characterized in that said mechanical means comprise a relief (19; 19A) of said second part (6, 7; 10; 37, 38) which substantially matches the entire contour of one recess (12; 12A) ensuring said positioning.
8 - Dispositif suivant l'une quelconque des revendications 5 à 7, caractérisé en ce que le relief (19; 19A) est emboîté à force dans l'évidement (12; 12A) .8 - Device according to any one of claims 5 to 7, characterized in that the relief (19; 19A) is force fitted into the recess (12; 12A).
9 - Dispositif ' suivant la revendication 7, prise ensemble avec la revendication 3 ou 4 , caractérisé en ce que l'assemblage des trois pièces (1, 6, 7) comprend au moins un organe de fixation mécanique (29), notamment un rivet, qui traverse des orifices (20) ménagés dans les reliefs (19) des seconde et troisième pièces (6, 7 ) .9 - Device according to claim 7, taken together with claim 3 or 4, characterized in that the assembly of the three parts (1, 6, 7) comprises at least one mechanical fixing member (29), in particular a rivet , which passes through orifices (20) formed in the reliefs (19) of the second and third parts (6, 7).
10 - Dispositif suivant l'une quelconque des revendications 1 à 9, caractérisé en ce que la pièce de support (6, 7; 37, 38) est en tôle, et en ce que ledit relief (19) est une semi-découpe de cette pièce. 11 - Dispositif suivant la revendication 2, caractérisé en ce que lesdits moyens mécaniques comprennent deux organes de fixation mécaniques (29) , notamment des rivets, qui traversent la découpe (12) et s'appuient sur deux régions opposées du bord de cette découpe en assurant ledit positionnement (Figure 12) .10 - Device according to any one of claims 1 to 9, characterized in that the support piece (6, 7; 37, 38) is made of sheet metal, and in that said relief (19) is a semi-cut of this piece. 11 - Device according to claim 2, characterized in that said mechanical means comprise two mechanical fixing members (29), in particular rivets, which pass through the cutout (12) and are supported on two opposite regions of the edge of this cut while ensuring said positioning (Figure 12).
12 - Dispositif suivant l'une quelconque des revendications 1 à 11, caractérisé en ce que l'outil est une pince, notamment multiprise, la pièce de support (6, 7; 37, 38) étant une pièce de branche de la pince. 12 - Device according to any one of claims 1 to 11, characterized in that the tool is a pliers, in particular multiple socket, the support part (6, 7; 37, 38) being a branch part of the pliers.
EP97919123A 1996-09-25 1997-09-17 Adjustable multiple slip-joint pliers Expired - Lifetime EP0869862B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9611678 1996-09-25
FR9611678A FR2753644B1 (en) 1996-09-25 1996-09-25 DEVICE FOR ASSEMBLING A TOOL JAW
PCT/FR1997/001649 WO1998013175A1 (en) 1996-09-25 1997-09-17 Device for assembling a clamping jaw

Publications (2)

Publication Number Publication Date
EP0869862A1 true EP0869862A1 (en) 1998-10-14
EP0869862B1 EP0869862B1 (en) 2003-12-10

Family

ID=9496052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97919123A Expired - Lifetime EP0869862B1 (en) 1996-09-25 1997-09-17 Adjustable multiple slip-joint pliers

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US (1) US6341545B1 (en)
EP (1) EP0869862B1 (en)
AT (1) ATE255983T1 (en)
AU (1) AU4306597A (en)
CA (1) CA2236542A1 (en)
CZ (1) CZ291718B6 (en)
DE (1) DE69726706T2 (en)
FR (1) FR2753644B1 (en)
PL (1) PL183550B1 (en)
WO (1) WO1998013175A1 (en)

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AU711408B3 (en) * 1999-06-15 1999-10-14 Jin-Fu Chen A tool
US7681477B2 (en) * 2008-01-31 2010-03-23 The Stanley Works Adjustable pliers
US8056451B2 (en) * 2008-07-28 2011-11-15 Irwin Industrial Tool Company Locking pliers
US7861622B2 (en) * 2008-07-28 2011-01-04 Irwin Industrial Tool Company Locking pliers
USD771456S1 (en) 2014-08-01 2016-11-15 Milwaukee Electric Tool Corporation Pliers with control key
US20160207175A1 (en) 2015-01-15 2016-07-21 Milwaukee Electric Tool Corporation Locking pliers with improved adjustment member
USD782891S1 (en) 2015-04-02 2017-04-04 Milwaukee Electric Tool Corporation Locking pliers
US10661414B2 (en) 2018-02-21 2020-05-26 Snap-On Incorporated Tool with handle offsets
USD865465S1 (en) 2018-02-21 2019-11-05 Snap-On Incorporated Pliers handles

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US3971131A (en) * 1975-05-27 1976-07-27 The Stanley Works Straight pattern snips
GB2067451B (en) * 1980-01-22 1983-05-18 Wilkinson Sword Ltd Hand tools
GB2096041A (en) * 1981-04-08 1982-10-13 Smout Michael Leslie Cutting implements
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Also Published As

Publication number Publication date
CZ160398A3 (en) 1998-12-16
PL183550B1 (en) 2002-06-28
PL327114A1 (en) 1998-11-23
FR2753644A1 (en) 1998-03-27
EP0869862B1 (en) 2003-12-10
CZ291718B6 (en) 2003-05-14
AU4306597A (en) 1998-04-17
CA2236542A1 (en) 1998-04-02
ATE255983T1 (en) 2003-12-15
DE69726706T2 (en) 2004-10-07
WO1998013175A1 (en) 1998-04-02
FR2753644B1 (en) 1998-10-30
DE69726706D1 (en) 2004-01-22
US6341545B1 (en) 2002-01-29

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