EP1799403B1 - Device for the semi-automatic screwing of fixing elements - Google Patents

Device for the semi-automatic screwing of fixing elements Download PDF

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Publication number
EP1799403B1
EP1799403B1 EP05807795A EP05807795A EP1799403B1 EP 1799403 B1 EP1799403 B1 EP 1799403B1 EP 05807795 A EP05807795 A EP 05807795A EP 05807795 A EP05807795 A EP 05807795A EP 1799403 B1 EP1799403 B1 EP 1799403B1
Authority
EP
European Patent Office
Prior art keywords
screwing
shaft
distributor
guides
magazine
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
EP05807795A
Other languages
German (de)
French (fr)
Other versions
EP1799403A1 (en
Inventor
Philippe Mariel
Hubert Lascroux
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.)
Ateliers LR Etanco SAS
Original Assignee
Ateliers LR Etanco 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
Priority claimed from FR0410234A external-priority patent/FR2875723B1/en
Priority claimed from FR0508402A external-priority patent/FR2875724B1/en
Application filed by Ateliers LR Etanco SAS filed Critical Ateliers LR Etanco SAS
Publication of EP1799403A1 publication Critical patent/EP1799403A1/en
Application granted granted Critical
Publication of EP1799403B1 publication Critical patent/EP1799403B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/04—Arrangements for handling screws or nuts for feeding screws or nuts
    • B25B23/06—Arrangements for handling screws or nuts for feeding screws or nuts using built-in magazine
    • 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
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/002—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose for special purposes
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/04—Arrangements for handling screws or nuts for feeding screws or nuts
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D15/00—Apparatus or tools for roof working
    • E04D15/04—Apparatus or tools for roof working for roof coverings comprising slabs, sheets or flexible material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D15/00—Apparatus or tools for roof working
    • E04D15/04—Apparatus or tools for roof working for roof coverings comprising slabs, sheets or flexible material
    • E04D2015/042—Fixing to the roof supporting structure
    • E04D2015/045—Fixing to the roof supporting structure by nailing

Definitions

  • the present invention relates to an apparatus for the semi-automatic screwing of fastening elements made of at least two preassembled parts, one of which is constituted by a support and / or fixing piece, while the other comprises a screw preengaged in a hole of the first part.
  • An apparatus as described in the preamble of claim 1 is known from the prior art for example by the document WO 00/68529 .
  • fixing elements comprising a tubular shaft of internal diameter at least equal to that of the head of the screw used, one end of which is provided with a retaining collar, for example circular or rectangular, which extends substantially radially and whose other end, usually of pointed shape, has a bore narrowing of diameter smaller than that of the head of the screw.
  • screwing devices comprising a magazine in which is stored a plurality of fasteners of this type, a dispenser for bring one by one the fastening elements in a screwing zone and screwing means capable of screwing the screw.
  • this apparatus comprises a magazine constituted by a guiding device comprising two parallel profiled guides having two respective concavities in the form of grooves facing each other so as to delimit a substantially cruciform space comprising two closed branches in which the fasteners can engage and be guided by the side edges of the collars and two open branches in which the screws pre-engaged in the fasteners and / or drums can pass.
  • the object of the invention is therefore more particularly to eliminate these disadvantages.
  • the movements of the drawer are controlled by the movements of the screwdriver / unscrewing through a conversion device vertical translation / horizontal translation.
  • An additional guide element is associated with the lateral guides downstream of the distributor to hold the fasteners whose collars have rectangular shapes oriented parallel to the axis of the lateral guides.
  • a stop element is provided at the distributor so that the polygonal or oblong collars are arranged in this direction in the gap between the fork and the support part of the drawer.
  • the screw well has a height greater than the maximum height that can have a fastener, from the collar to the tip of the screw.
  • the well comprises retractable retention means for retaining the collars of the fasteners until the screwing rod of the screwdriver / stripper engages in the barrel of the fastener which is is retained and comes into engagement with the head of the screw, these retention means then retracting under the effect of the pressure exerted downwards by the screw rod on the fastener.
  • the collars of the fasteners are guided by two substantially vertical plates of slightly concave profile arranged one facing the other, one of these two plates being hinged in its lower part. and being biased by elastic means towards the other plate to a position in which these two plates are spaced from each other by a predetermined minimum distance.
  • the apparatus according to the invention has a relatively simple structure, inexpensive and nevertheless allows a particularly reliable operation for fasteners that can have different shapes and dimensions.
  • the device according to the invention applies to the installation of a fastening element 1 comprising a tubular shaft 2, one end of which is provided with a retaining collar 3 while the other end, of substantially This frustoconical element has a boring narrowing 4.
  • this element is made of plastic molded so as to avoid any thermal conduction bridge.
  • the element 1 cooperates with a screw 5 which engages in the bore 6 of the drum 2 and passes through the bore narrowing 4.
  • the head 7 of the screw 5 has a diameter substantially equal to the diameter of the bore 6. As a result, it is guided by this bore. At the end of screwing, this head 7 abuts against the bearing making the transition between the bore 6 and the bore narrowing 4.
  • the bore 6 of the barrel 2 is provided with one or more protuberances 8 that the head of the screw must cross, forcibly, causing a slight elastic deformation of the drum 2.
  • This operation can be carried out at the factory during the pre-assembly of the screw, using a special tool. It can also be done in situ, by the operator.
  • the bore narrowing 4 is itself provided with one or more axial protuberances intended to allow to obtain a screwing effect of the screw 5. Thanks to this arrangement, the passage in force of the screw 5 by the protuberances 8 of the barrel 2 can be obtained thanks to this screwing effect.
  • the shapes and dimensions of the fasteners usable by the apparatus according to the invention can be very different and correspond to the ranges of fasteners of this kind currently available on the market.
  • the collars of these fasteners may for example be circular ( figure 2 ), oblong, polygonal ( figure 3 ) or present a combination of these forms.
  • the drums 2 and the screws 5 may have different lengths so that, for a given application, the user can associate a drum and a screw having the most appropriate lengths for this application.
  • the screwing apparatus comprises a frame 11 comprising a base 12 reinforced by crosspieces 15, 16.
  • This base 12 is mounted on two pairs of wheels 17, 17 'substantially coaxial with the end cross member 16.
  • This base 12 carries two parallel columns 18, 19 substantially vertical on which slides a carriage 20 carrying a screwdriver / unscrewer 21, this carriage 20 being provided with two handles 22, 23 used to ensure the rolling movements of the device and to print vertical translation movement to the screwdriver 21.
  • the carriage is also subject to an upward biasing force exerted by helical springs housed in the columns 18, 19.
  • This intermediate spacer cooperates with an adjustable stop consisting of two tubular sleeves screwing into each other, through which passes the column 19. One of these sleeves is secured to the column 19 in an adjustable position.
  • the upper and intermediate spacers are interconnected by a vertical guide rod 32 on which slides a drive tube 33.
  • the upper and lower spacers 25 support a fastener magazine M comprising two parallel cylindrical lateral guides 34, spaced from each other by a distance slightly greater than the diameter of a drum 2 but smaller than the maximum width (or diameter) of a collar 3 and a central guide constituted by a strip 36 which extends opposite the lateral guides 34, 35 in a plane parallel to the plane of the guides, at a distance from this plane slightly greater at the maximum thickness of the collar 3.
  • the two guides 34, 35 and the strip 36 extend substantially parallel to the screw rod.
  • the two lateral guides 34, 35 are extended between the intermediate spacer 30 and the lower spacer 25 by a bent portion 37 which is fixed by its lower end on either side of the slot 29.
  • the intermediate spacer 30 supports a distributor D, via a U-shaped support member, 40 whose core 41 is fixed on a vertical extension of the web of the spacer 30.
  • This support piece 40 ( figure 6 ) comprises a wing 41 'carrying a horizontal axis 42' on which pivots a lever 42 which tilts in a vertical plane.
  • One of the two arms 43 of this lever 42 carries a rod 44 which extends in the area of passage of a stop 47 carried by the carriage 20.
  • the second arm 48 of this lever 42 cooperates with one of the two arms 49 of a second lever 50 mounted oscillating about a vertical axis 51 which extends into a recess formed in the wing 41 '.
  • the second arm 52 of this second lever 50 is articulated to a slide valve 53 slidably mounted on the second wing 41 "of the support piece 40 so as to ensure its displacement in translation, which mechanism thus ensures a conversion of the vertical translation movement of the trolley 20 (in its stroke portion in which the stop 47 comes into contact with the rod 44) in a horizontal translational movement of the slide 53.
  • the drawer 53 ( figure 8 ) is constituted by a tubular section of rectangular section, one of the main walls 54 slides in a slide carried by the flange 41 "of the support piece 40.
  • the other main wall 55 parallel to the first wall 54, extends parallel and at a short distance from the plane of the lateral guides 34, 35, at the lower end of the magazine M.
  • This wall 55 is slotted by an oblique cutout 56 (substantially S-shaped having a horizontal central region and two oblique wings).
  • This cutout defines on one side an upper tongue 57 which is doubled by a Z-shaped piece, 58 to form a fork intended to overlap the two lateral guides 34, 35 and, on the other side, in its lower part, a lower tongue 59 which constitutes a support piece located opposite the fork 57-58.
  • the gap between the upper edge of the fork 57-58 and the upper edge of the tongue 59 is at least equal to the sum of the radius (or semi-width) of the collar 3 and the radius of the outer surface of the barrel 2.
  • the PV screwing well comprises ( figure 10 ), in its upper part, retractable flaps, articulated on the lower spacer 25 and spring-loaded in the closed position. These flaps 63 serve to temporarily retain the fasteners 1 by their collars 3 until the rod of the screwdriver 21 exerts on the fastener 1 a downward force to cause the retraction.
  • the screwing rod comprises interchangeable tips of appropriate length to that of the drums of said elements.
  • This PV screwing well comprises two guide plates 64, 65 substantially vertical, slightly concave profile (suitable for the shapes of the collars 3) arranged one facing the other.
  • One of these two plates 65 is articulated in its lower part (articulation 66).
  • the two plates 64, 65 have in their upper parts, oblique portions 67, 68 forming a flare.
  • the plate 65 is biased by resilient means (springs 69) towards the other plate 64.
  • the fastening elements 1 may be previously packaged in the manner described in the patent application.
  • FR No 04 07498 filed on July 6, 2004 in the name of the Applicant thanks to a flexible support profile having at least partly in the form of a band whose side edge is provided with a succession of notches opening laterally to the outside through a narrowed opening of smaller width to the diameter of the drums so that the drums can engage there and be held by clipping Z 1 .
  • the screwing device comprises a plurality of vertical magazines (here four) M 1 , M 2 , M 3 , M 4 of the type visible on the figures 4 and 5 and each having two parallel lateral guides 70, 71 and a central guide 72, these three guides 70 to 72 being connected on four levels (lower, upper + 2 intermediate levels) by flanges B 1 to B 4 constituted by metal strips folded, C-shaped.
  • the flanges B 4 of the lower level and those of the upper intermediate level B 2 are connected together by two respective connecting pieces 73, 74 of circular shape which extend over approximately 60 °.
  • the connecting piece 73 located at the upper intermediate level has a substantially U-shaped section. It is supported by a support plate 75 with a circular edge, with the same radius of curvature as the piece 74, which extends over approximately 120 ° .
  • This plate 75 which engages in the cavity of the connecting piece 73 is fixed to the top of the columns 18, 19 by means of two coaxial screws V 1 , V 2 .
  • This assembly allows a circular sliding of the connecting piece 73 on the plate 75.
  • a ball bearing system is provided between the upper flange of the upper connecting piece 73 and the upper face of the plate 75. This bearing involves balls that engage in a coaxial circular groove 76 of the plate 75.
  • each of the magazines M 1 to M 4 is equipped with a shutter O 1 to O 4 involving two radial pins 77, 78 passing through two respective passages provided in the web of the flange B 4 of the store and secured to an actuating piece 79 mounted sliding with spring return 80 on a radial rod 81, integral with the flange B 4 , which extends opposite the pins 77, 78.
  • This actuating piece 79 is itself provided with a vertical finger 82 intended to cooperate with a cam profile 82 'of a fixed actuating part 83 integral with the structure of the distributor D.
  • the cam profile 82 ' may comprise a notch used to mark the passage of the magazine to the right of the distributor D and temporarily hold it in this position (in the manner of a pawl).
  • a traction on the needle through the handle 86 so as to disassemble the hole 85 of the tongue 83 in which it was engaged then moves the slider 95 until it is in the desired position.
  • the needle is then released so that it can engage in a hole 85 of the tongue 83 corresponding to this position.
  • This height adjustment of the screwdriver 21 makes it possible to use fasteners of different sizes without having to modify the length of the screwing rod 31.
  • the position of the holes 85 may advantageously but not exclusively correspond to the height of the main fasteners available commercially.
  • the screwing rod 31 is disposed inside a coaxial tubular element ET, axially movable (vertically).
  • This tubular element ET comprises a lower section 87 of inner diameter slightly greater than the diameter of the rod 31 and an upper section 88 of inside diameter slightly greater than the diameter of the end portion 89 of the nose of the screwdriver 21.
  • the lower section 87 slides in a bore 98 made in a spacer 90 connecting the two lateral guide rails of the fasteners, at the end of the curved position 37 extending above the screw well.
  • the section 88 comprises a flared upper flange 91. It slides in a hole made in the bottom of a well 92 secured to a connecting piece 93 of the carriage 20.
  • a thrust washer 94 is disposed at the junction between the two sections 87, 88.
  • the tubular element ET serves to exert pressure on the collar 3 of the fixing element 1 during its screwing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

The invention relates to the screwing of fixing elements, comprising a tubular shaft, provided with a flange and a screw pre-engaged in the shaft, a magazine (M) with two parallel lateral guides (34, 35), separated one from the other by a distance marginally greater than the diameter of a shaft but less than the diameter of a flange, a distributor (D) into which the lower end of the magazine (M) opens and a screwing shaft (PV) located in the axis of the screwing bar (31) of a mobile screwing /unscrewing device (21) and displaceable parallel to the axis of the bar (31).

Description

La présente invention concerne un appareil pour le vissage, semi-automatique, d'éléments de fixation réalisés en au moins deux parties préassemblées dont l'une est constituée par une pièce d'appui et/ou de fixation, tandis que l'autre comporte une vis préengagée dans un orifice de la première partie. Un appareil tel que décrit dans le préambule de la revendication 1 est connu de l'art antérieur par exemple par le document WO 00/68529 .The present invention relates to an apparatus for the semi-automatic screwing of fastening elements made of at least two preassembled parts, one of which is constituted by a support and / or fixing piece, while the other comprises a screw preengaged in a hole of the first part. An apparatus as described in the preamble of claim 1 is known from the prior art for example by the document WO 00/68529 .

Elle s'applique notamment, mais non exclusivement, Ă  la fixation de panneaux isolants sur une structure support au moyen d'Ă©lĂ©ments de fixation comprenant un fĂ»t tubulaire de diamètre intĂ©rieur au moins Ă©gal Ă  celui de la tĂªte de la vis utilisĂ©e, dont une extrĂ©mitĂ© est munie d'un collet de retenue par exemple circulaire ou rectangulaire qui s'Ă©tend sensiblement radialement et dont l'autre extrĂ©mitĂ©, habituellement de forme pointue, prĂ©sente un rĂ©trĂ©cissement d'alĂ©sage de diamètre infĂ©rieur Ă  celui de la tĂªte de la vis.It applies in particular, but not exclusively, to the fixing of insulating panels on a support structure by means of fixing elements comprising a tubular shaft of internal diameter at least equal to that of the head of the screw used, one end of which is provided with a retaining collar, for example circular or rectangular, which extends substantially radially and whose other end, usually of pointed shape, has a bore narrowing of diameter smaller than that of the head of the screw.

On sait que pour faciliter une telle fixation et pour réduire le temps de son exécution, on utilise de plus en plus souvent des appareils de vissage comprenant un magasin dans lequel est stockée une pluralité d'éléments de fixation de ce type, un distributeur permettant d'amener un à un les éléments de fixation dans une zone de vissage et des moyens de vissage aptes à effectuer un vissage de la vis.It is known that to facilitate such fixing and to reduce the time of its execution, it is more and more often used screwing devices comprising a magazine in which is stored a plurality of fasteners of this type, a dispenser for bring one by one the fastening elements in a screwing zone and screwing means capable of screwing the screw.

Ainsi, on a déjà proposé dans le brevet FR No 99 09830 déposé au nom de RLB, un appareil permettant le vissage d'éléments de fixation sur lesquels sont prévissées des vis de tailles différentes, le magasin de cet appareil étant alimenté par des éléments de fixation éventuellement portés par une bande. Une fois les éléments de fixation engagés dans le magasin, cette bande est extraite en effectuant une traction axée perpendiculairement aux éléments de guidage.Thus, it has already been proposed in the patent FR No 99 09830 deposited in the name of RLB, an apparatus for screwing fasteners on which are Screws of different sizes are provided, the magazine of this apparatus being powered by fasteners possibly carried by a band. Once the fasteners engaged in the magazine, this band is extracted by making a traction oriented perpendicularly to the guide elements.

D'une façon plus prĂ©cise, cet appareil comprend un magasin constituĂ© par un dispositif de guidage comportant deux guides profilĂ©s parallèles prĂ©sentant deux concavitĂ©s respectives en forme de gorge situĂ©es en regard l'une de l'autre de manière Ă  dĂ©limiter un espace sensiblement cruciforme comprenant deux branches fermĂ©es dans lesquelles les Ă©lĂ©ments de fixation peuvent s'engager et Ăªtre guidĂ©s par les bordures latĂ©rales des collets et deux branches ouvertes dans lesquelles les vis prĂ©engagĂ©es dans les Ă©lĂ©ments de fixation et/ou les fĂ»ts peuvent passer.More precisely, this apparatus comprises a magazine constituted by a guiding device comprising two parallel profiled guides having two respective concavities in the form of grooves facing each other so as to delimit a substantially cruciform space comprising two closed branches in which the fasteners can engage and be guided by the side edges of the collars and two open branches in which the screws pre-engaged in the fasteners and / or drums can pass.

Dans cet appareil, le distributeur servant à délivrer un à un les éléments de fixation contenus dans le magasin comprend un pignon épaulé monté rotatif au voisinage du dispositif de guidage selon un axe orienté parallèlement aux vis et/ou aux fûts des éléments de fixation contenus dans le magasin. Ce pignon épaulé comprend une cavité axialement traversante dont le fond présente une forme hémicylindrique coaxiale et qui débouche du côté opposé au fond, au niveau de la périphérie du pignon. Cette cavité est dimensionnée de manière à ce que la vis et/ou le fût d'un élément de fixation puisse s'y engager. Ce pignon est entraîné en rotation par une crémaillère solidaire du mouvement de translation de la visseuse de manière à prendre :

  • une position dans laquelle la cavitĂ© est orientĂ©e vers le magasin de manière Ă  pouvoir recevoir la vis et/ou le fĂ»t d'un Ă©lĂ©ment de fixation contenu dans le magasin,
  • une position Ă  180° de la prĂ©cĂ©dente, dans laquelle la cavitĂ© orientĂ©e Ă  l'opposĂ© du magasin permet l'extraction dudit Ă©lĂ©ment de fixation.
In this apparatus, the dispenser serving to deliver one by one the fasteners contained in the magazine comprises a stepped pinion rotatably mounted in the vicinity of the guide device along an axis oriented parallel to the screws and / or drums of the fasteners contained in the shop. This stepped pinion comprises an axially through cavity whose bottom has a coaxial hemicylindrical shape and which opens on the opposite side to the bottom, at the periphery of the pinion. This cavity is dimensioned so that the screw and / or the barrel of a fastener can engage. This pinion is rotated by a rack integral with the translational movement of the screwdriver so as to take:
  • a position in which the cavity is oriented towards the magazine so as to receive the screw and / or the barrel of a fastener contained in the magazine,
  • a position 180 ° from the previous one, in which the cavity facing away from the magazine allows the extraction of said fixing element.

Cette solution qui permet d'obtenir d'excellents résultats, présente néanmoins les inconvénients :

  • de ne pouvoir utiliser qu'un seul type d'Ă©lĂ©ments de fixation prĂ©sentant un collet de dimensions et de forme dĂ©terminĂ©es,
  • de faire intervenir un mĂ©canisme relativement complexe et donc coĂ»teux.
This solution, which makes it possible to obtain excellent results, nevertheless has the disadvantages:
  • to be able to use only one type of fastening elements having a collar of determined dimensions and shape,
  • to involve a relatively complex and therefore expensive mechanism.

L'invention a donc plus particulièrement pour but de supprimer ces inconvénients.The object of the invention is therefore more particularly to eliminate these disadvantages.

A cet effet, elle propose un appareil selon la revendication indépendante 1 présentant une structure générale similaire à celle précédemment décrite, mais dans lequel :

  • Le magasin comprend deux guides latĂ©raux parallèles Ă©cartĂ©s l'un de l'autre d'une distance lĂ©gèrement supĂ©rieure au diamètre d'un fĂ»t mais infĂ©rieure Ă  la largeur ou au diamètre d'un collet et un guide central qui s'Ă©tend en regard des guides latĂ©raux dans un plan parallèle au plan desdits guides latĂ©raux, Ă  une distance de ce plan lĂ©gèrement supĂ©rieure Ă  l'Ă©paisseur maximum du collet.
  • Les deux guides latĂ©raux sont prolongĂ©s au-delĂ  du distributeur par une portion recourbĂ©e destinĂ©e Ă  amener les Ă©lĂ©ments de fixation au droit d'un puits de vissage dans l'axe duquel est disposĂ©e une visseuse mobile parallèlement audit axe.
  • Le distributeur comprend un tiroir mobile parallèlement au plan des guides latĂ©raux selon un axe de dĂ©placement perpendiculaire Ă  ces derniers, ce tiroir comprenant, dans sa partie supĂ©rieure, une fourche apte Ă  chevaucher les deux guides latĂ©raux et, dans sa partie infĂ©rieure, une pièce d'appui situĂ©e Ă  l'opposĂ© de la fourche, l'Ă©cart de hauteur entre la fourche et la pièce d'appui Ă©tant au moins Ă©gal Ă  la somme du rayon (ou de la demi-largeur) du collet et du rayon de la surface extĂ©rieure du fĂ»t. Ce distributeur est actionnĂ© de manière Ă  ce que le tiroir puisse occuper :
    • une première position dans laquelle la fourche chevauche les deux guides latĂ©raux de manière Ă  retenir par son fĂ»t l'Ă©lĂ©ment de fixation situĂ© en bas de la pile contenue dans le magasin, et la pièce d'appui se trouve latĂ©ralement dĂ©calĂ©e par rapport Ă  l'intervalle des deux guides latĂ©raux de manière Ă  libĂ©rer le passage de l'Ă©lĂ©ment de fixation qui se trouve compris entre la fourche et l'Ă©lĂ©ment de fixation,
    • une deuxième position dans laquelle la fourche se trouve latĂ©ralement dĂ©calĂ©e vis-Ă -vis des deux guides pour laisser le passage de l'Ă©lĂ©ment de fixation situĂ© en bas de la pile tandis que la pièce d'appui est disposĂ©e en regard de l'intervalle compris entre les deux guides de manière Ă  retenir par son fĂ»t cet Ă©lĂ©ment de fixation.
For this purpose, it proposes an apparatus according to independent claim 1 having a general structure similar to that previously described, but in which:
  • The magazine comprises two parallel lateral guides spaced from each other by a distance slightly greater than the diameter of a drum but smaller than the width or diameter of a collar and a central guide which extends opposite the lateral guides in a plane parallel to the plane of said lateral guides, at a distance from this plane slightly greater than the maximum thickness of the collar.
  • The two lateral guides are extended beyond the dispenser by a curved portion intended to bring the fasteners to the right of a screwing well in the axis of which is disposed a screwdriver mobile parallel to said axis.
  • The dispenser comprises a drawer movable parallel to the plane of the lateral guides along an axis of displacement perpendicular to the latter, this drawer comprising, in its upper part, a fork able to overlap the two lateral guides and, in its lower part, a piece of the support situated opposite the fork, the difference in height between the fork and the support piece being at least equal to the sum of the radius (or half-width) of the collar and the radius of the outer surface of the drum. This dispenser is actuated so that the drawer can occupy:
    • a first position in which the fork overlaps the two lateral guides so as to retain the fixing element located at the bottom of the stack contained in the magazine by means of its shaft, and the support piece is laterally offset with respect to the interval of the two lateral guides so as to release the passage of the fastening element which is between the fork and the fixing element,
    • a second position in which the fork is laterally offset with respect to the two guides to allow the passage of the fixing element at the bottom of the stack while the support piece is arranged opposite the gap between the two guides so as to retain by its barrel this fastener.

Avantageusement, les dĂ©placements du tiroir sont commandĂ©s par les dĂ©placements de la visseuse/dĂ©visseuse grĂ¢ce Ă  un dispositif de conversion translation verticale/translation horizontale.Advantageously, the movements of the drawer are controlled by the movements of the screwdriver / unscrewing through a conversion device vertical translation / horizontal translation.

Un élément de guidage supplémentaire est associé aux guides latéraux en aval du distributeur pour maintenir les éléments de fixation dont les collets présentent des formes rectangulaires orientées parallèlement à l'axe des guides latéraux. Dans ce cas, un élément de butée est prévu au niveau du distributeur de manière à ce que les collets polygonaux ou oblongs se disposent selon cette orientation dans l'intervalle entre la fourche et la pièce d'appui du tiroir.An additional guide element is associated with the lateral guides downstream of the distributor to hold the fasteners whose collars have rectangular shapes oriented parallel to the axis of the lateral guides. In this case, a stop element is provided at the distributor so that the polygonal or oblong collars are arranged in this direction in the gap between the fork and the support part of the drawer.

De préférence, le puits de vissage présente une hauteur supérieure à la hauteur maximale que peut avoir un élément de fixation, depuis le collet jusqu'à la pointe de la vis.Preferably, the screw well has a height greater than the maximum height that can have a fastener, from the collar to the tip of the screw.

Dans sa partie supĂ©rieure, le puits comprend des moyens de rĂ©tention escamotables destinĂ©s Ă  retenir les collets des Ă©lĂ©ments de fixation jusqu'Ă  ce que la tige de vissage de la visseuse/dĂ©visseuse s'engage dans le fĂ»t de l'Ă©lĂ©ment de fixation qui se trouve retenu et vienne en prise sur la tĂªte de la vis, ces moyens de rĂ©tention s'escamotant ensuite sous l'effet de la pression exercĂ©e vers le bas par la tige de vissage sur l'Ă©lĂ©ment de fixation.In its upper part, the well comprises retractable retention means for retaining the collars of the fasteners until the screwing rod of the screwdriver / stripper engages in the barrel of the fastener which is is retained and comes into engagement with the head of the screw, these retention means then retracting under the effect of the pressure exerted downwards by the screw rod on the fastener.

A l'intérieur du puits de vissage, les collets des éléments de fixation sont guidés par deux plaques sensiblement verticales de profil légèrement concave disposées l'une en regard de l'autre, l'une de ces deux plaques étant articulée dans sa partie inférieure et étant sollicitée par des moyens élastiques en direction de l'autre plaque vers une position dans laquelle ces deux plaques sont écartées l'une de l'autre d'une distance minimum prédéterminée.Inside the screw well, the collars of the fasteners are guided by two substantially vertical plates of slightly concave profile arranged one facing the other, one of these two plates being hinged in its lower part. and being biased by elastic means towards the other plate to a position in which these two plates are spaced from each other by a predetermined minimum distance.

GrĂ¢ce Ă  ces dispositions, l'appareil selon l'invention prĂ©sente une structure relativement simple, peu coĂ»teuse et permet nĂ©anmoins un fonctionnement particulièrement fiable pour des Ă©lĂ©ments de fixation pouvant prĂ©senter des formes et des dimensions diffĂ©rentes.Thanks to these arrangements, the apparatus according to the invention has a relatively simple structure, inexpensive and nevertheless allows a particularly reliable operation for fasteners that can have different shapes and dimensions.

Un mode d'exécution de l'invention sera décrit ci-après, à titre d'exemple non limitatif, avec référence aux dessins annexés dans lesquels :

  • La figure 1 est une vue en coupe axile schĂ©matique d'un Ă©lĂ©ment de fixation utilisable par l'appareil selon l'invention ;
  • Les figures 2 et 3 sont des vues de dessus montrant les deux principales formes des collets rencontrĂ©es dans le commerce ;
  • Les figures 4 et 5 reprĂ©sentent un appareil selon l'invention, vu de face (figure 4) et vu de cĂ´tĂ© (figure 5);
  • La figure 6 est une vue de cĂ´tĂ© schĂ©matique Ă  plus grande Ă©chelle du distributeur ;
  • La figure 7 est une vue de face d'un levier d'entraĂ®nement utilisĂ© par le distributeur de la figure 6 ;
  • La figure 8 est une vue en perspective du tiroir du distributeur ;
  • La figure 9 est une vue en perspective de l'entretoise infĂ©rieure ;
  • La figure 10 est une vue en perspective schĂ©matique du puits de vissage.
  • Les figures 11 et 12 sont deux vues en perspective de la partie supĂ©rieure d'une variante d'exĂ©cution de l'invention comprenant une pluralitĂ© de magasins d'Ă©lĂ©ments de fixation, la figure 11 Ă©tant une vue arrière et la figure 12 une vue avant ;
  • La figure 13 est une vue partielle, Ă  plus grande Ă©chelle de la figure 11, cette vue montrant le mĂ©canisme de liaison entre la structure support des magasins et le distributeur.
One embodiment of the invention will be described below, by way of non-limiting example, with reference to the accompanying drawings in which:
  • The figure 1 is a diagrammatic axial sectional view of a fixing element that can be used by the apparatus according to the invention;
  • The Figures 2 and 3 are top views showing the two main forms of collars encountered in the trade;
  • The figures 4 and 5 represent an apparatus according to the invention, seen from the front ( figure 4 ) and seen from the side ( figure 5 );
  • The figure 6 is a schematic side view on a larger scale of the dispenser;
  • The figure 7 is a front view of a drive lever used by the distributor of the figure 6 ;
  • The figure 8 is a perspective view of the dispenser drawer;
  • The figure 9 is a perspective view of the lower spacer;
  • The figure 10 is a schematic perspective view of the screw well.
  • The figures 11 and 12 are two perspective views of the upper portion of an alternative embodiment of the invention comprising a plurality of fastener magazines, the figure 11 being a rear view and the figure 12 a front view;
  • The figure 13 is a partial view, on a larger scale of the figure 11 , this view showing the connecting mechanism between the support structure of the stores and the distributor.

Comme précédemment mentionnée, le dispositif selon l'invention s'applique à la pose d'un élément de fixation 1 comprenant un fût tubulaire 2 dont une extrémité est munie d'un collet de retenue 3 tandis que l'autre extrémité, de forme sensiblement tronconique, présente un rétrécissement d'alésage 4. Usuellement, cet élément est réalisé en matière plastique moulée de manière à éviter tout pont de conduction thermique.As previously mentioned, the device according to the invention applies to the installation of a fastening element 1 comprising a tubular shaft 2, one end of which is provided with a retaining collar 3 while the other end, of substantially This frustoconical element has a boring narrowing 4. Usually, this element is made of plastic molded so as to avoid any thermal conduction bridge.

Bien entendu, l'invention ne se limite pas Ă  la matière plastique, d'autres matĂ©riaux pouvant Ă©galement Ăªtre utilisĂ©s pour Ă©viter la crĂ©ation de ponts thermiques. L'Ă©lĂ©ment 1 coopère avec une vis 5 qui s'engage dans l'alĂ©sage 6 du fĂ»t 2 et passe au travers du rĂ©trĂ©cissement d'alĂ©sage 4.Of course, the invention is not limited to plastic, other materials can also be used to avoid the creation of bridges thermal. The element 1 cooperates with a screw 5 which engages in the bore 6 of the drum 2 and passes through the bore narrowing 4.

La tĂªte 7 de la vis 5 prĂ©sente un diamètre sensiblement Ă©gal au diamètre de l'alĂ©sage 6. De ce fait, elle se trouve guidĂ©e par cet alĂ©sage. En fin de vissage, cette tĂªte 7 vient en butĂ©e contre le palier effectuant la transition entre l'alĂ©sage 6 et le rĂ©trĂ©cissement d'alĂ©sage 4.The head 7 of the screw 5 has a diameter substantially equal to the diameter of the bore 6. As a result, it is guided by this bore. At the end of screwing, this head 7 abuts against the bearing making the transition between the bore 6 and the bore narrowing 4.

Pour assurer l'imperdabilitĂ© de la vis 5 ainsi que la protection de l'opĂ©rateur, l'alĂ©sage 6 du fĂ»t 2 est muni d'une ou plusieurs protubĂ©rances 8 que la tĂªte de la vis doit franchir, Ă  force, en provoquant une lĂ©gère dĂ©formation Ă©lastique du fĂ»t 2. Cette opĂ©ration peut s'effectuer en usine lors du prĂ©montage de la vis, Ă  l'aide d'un outil spĂ©cial. Elle peut Ă©galement s'effectuer in situ, par l'opĂ©rateur. A cet effet, le rĂ©trĂ©cissement d'alĂ©sage 4 est lui-mĂªme muni d'une ou plusieurs protubĂ©rances axiales destinĂ©es Ă  permettre l'obtention d'un effet de vissage de la vis 5. GrĂ¢ce Ă  cette disposition, le passage en force de la vis 5 par les protubĂ©rances 8 du fĂ»t 2 peut Ăªtre obtenu grĂ¢ce Ă  cet effet de vissage.To ensure the imperceptibility of the screw 5 and the protection of the operator, the bore 6 of the barrel 2 is provided with one or more protuberances 8 that the head of the screw must cross, forcibly, causing a slight elastic deformation of the drum 2. This operation can be carried out at the factory during the pre-assembly of the screw, using a special tool. It can also be done in situ, by the operator. For this purpose, the bore narrowing 4 is itself provided with one or more axial protuberances intended to allow to obtain a screwing effect of the screw 5. Thanks to this arrangement, the passage in force of the screw 5 by the protuberances 8 of the barrel 2 can be obtained thanks to this screwing effect.

Les formes et les dimensions des Ă©lĂ©ments de fixation utilisables par l'appareil selon l'invention peuvent Ăªtre très diffĂ©rentes et correspondre aux gammes d'Ă©lĂ©ments de fixation de ce genre actuellement disponibles sur le marchĂ©.The shapes and dimensions of the fasteners usable by the apparatus according to the invention can be very different and correspond to the ranges of fasteners of this kind currently available on the market.

En particulier, les collets de ces Ă©lĂ©ments de fixation peuvent par exemple Ăªtre circulaires (figure 2), oblongs, polygonaux (figure 3) ou prĂ©senter une combinaison de ces formes. Les fĂ»ts 2 et les vis 5 peuvent prĂ©senter des longueurs diffĂ©rentes de manière Ă  ce que, pour une application donnĂ©e, l'utilisateur puisse associer un fĂ»t et une vis prĂ©sentant des longueurs les mieux appropriĂ©es pour cette application.In particular, the collars of these fasteners may for example be circular ( figure 2 ), oblong, polygonal ( figure 3 ) or present a combination of these forms. The drums 2 and the screws 5 may have different lengths so that, for a given application, the user can associate a drum and a screw having the most appropriate lengths for this application.

Tel qu'illustrĂ© sur les figures 4 et 5, l'appareil de vissage comprend un chĂ¢ssis 11 comprenant une embase 12 renforcĂ©e par des traverses 15, 16.As illustrated on figures 4 and 5 , the screwing apparatus comprises a frame 11 comprising a base 12 reinforced by crosspieces 15, 16.

Cette embase 12 est montée sur deux paires de roues 17, 17' sensiblement coaxiales à la traverse d'extrémité 16.This base 12 is mounted on two pairs of wheels 17, 17 'substantially coaxial with the end cross member 16.

Cette embase 12 porte deux colonnes parallèles 18, 19 sensiblement verticales sur lesquelles coulisse un chariot 20 portant une visseuse/dĂ©visseuse 21, ce chariot 20 Ă©tant muni de deux poignĂ©es 22, 23 servant Ă  assurer les dĂ©placements par roulage de l'appareil et Ă  imprimer un mouvement de translation vertical Ă  la visseuse 21. Le chariot est par ailleurs soumis Ă  une force de rappel vers le haut exercĂ©e par des ressorts hĂ©licoĂ¯daux logĂ©s dans les colonnes 18, 19.This base 12 carries two parallel columns 18, 19 substantially vertical on which slides a carriage 20 carrying a screwdriver / unscrewer 21, this carriage 20 being provided with two handles 22, 23 used to ensure the rolling movements of the device and to print vertical translation movement to the screwdriver 21. The carriage is also subject to an upward biasing force exerted by helical springs housed in the columns 18, 19.

Par ailleurs, ces deux colonnes 18, 19 sont reliées entre elles par trois entretoises, à savoir :

  • une entretoise supĂ©rieure 24 sensiblement en forme de C qui relie leurs extrĂ©mitĂ©s supĂ©rieures,
  • une entretoise infĂ©rieure 25, de forme droite, munie de trois Ă©videments verticaux, Ă  savoir (figure 9) : deux perçages extĂ©rieurs 26, 27 dans lesquels passent et viennent se fixer les colonnes 18, 19 et un Ă©videment central 28, en forme de losange Ă  angles incurvĂ©s qui est ouvert au niveau de l'un de ses sommets grĂ¢ce Ă  une fente 29 axĂ©e perpendiculairement au plan des deux colonnes 18, 19, cet Ă©videment central 28 prĂ©sentant une section appropriĂ©e pour laisser le passage, dans un puits de vissage PV, de collets 3 de tous les Ă©lĂ©ments de fixation 1 que l'on peut envisager de fixer grĂ¢ce Ă  l'appareil (la fente 29 permettant le passage des fĂ»ts 2 et l'extrĂ©mitĂ© des vis), et
  • une entretoise intermĂ©diaire 30 prĂ©sentant, dans le plan des colonnes 18, 19, une forme en Ω de concavitĂ© orientĂ©e vers le bas, cette entretoise comprenant, au niveau de ses ailes latĂ©rales, deux perçages latĂ©raux respectifs dans lesquels passent et viennent se fixer les colonnes 18, 19 et un perçage central destinĂ© Ă  assurer le passage de la tige de vissage 31 entraĂ®nĂ©e par la visseuse/dĂ©visseuse 21.
Moreover, these two columns 18, 19 are interconnected by three spacers, namely:
  • a substantially C-shaped upper spacer 24 which connects their upper ends,
  • a bottom spacer 25, of straight shape, provided with three vertical recesses, namely ( figure 9 ): two external holes 26, 27 in which pass and come to fix the columns 18, 19 and a central recess 28, diamond-shaped curved angles which is open at one of its vertices through a slot 29 oriented perpendicularly to the plane of the two columns 18, 19, this central recess 28 having a section adapted to allow the passage, in a PV screwing well, of collars 3 of all the fastening elements 1 that can be considered to fix thanks to the apparatus (the slot 29 allowing the passage of the drums 2 and the end of the screws), and
  • an intermediate spacer 30 having, in the plane of the columns 18, 19, a downwardly concave shape of Ω, this spacer comprising, at its lateral wings, two respective lateral bores in which the columns pass and are fixed. 18, 19 and a central bore for ensuring the passage of the screwing rod 31 driven by the screwdriver 21.

Cette entretoise intermédiaire coopère avec une butée réglable consistant en deux manchons tubulaires se vissant l'un dans l'autre, par lesquels passe 1a colonne 19. L'un de ces manchons est solidarisé à la colonne 19 en un emplacement réglable.This intermediate spacer cooperates with an adjustable stop consisting of two tubular sleeves screwing into each other, through which passes the column 19. One of these sleeves is secured to the column 19 in an adjustable position.

Les entretoises supérieure et intermédiaire sont reliées entre elles par une tige de guidage verticale 32 sur laquelle coulisse un tube d'entraînement 33.The upper and intermediate spacers are interconnected by a vertical guide rod 32 on which slides a drive tube 33.

Les entretoises supérieure 24 et inférieure 25 supportent un magasin M d'éléments de fixation comprenant deux guides latéraux parallèles cylindriques 34, 35 écartés l'un de l'autre d'une distance légèrement supérieure au diamètre d'un fût 2 mais inférieure à la largeur (ou au diamètre) maximale d'un collet 3 et un guide central constitué par une bande 36 qui s'étend en regard des guides latéraux 34, 35 dans un plan parallèle au plan des guides, à une distance de ce plan légèrement supérieure à l'épaisseur maximum du collet 3.The upper and lower spacers 25 support a fastener magazine M comprising two parallel cylindrical lateral guides 34, spaced from each other by a distance slightly greater than the diameter of a drum 2 but smaller than the maximum width (or diameter) of a collar 3 and a central guide constituted by a strip 36 which extends opposite the lateral guides 34, 35 in a plane parallel to the plane of the guides, at a distance from this plane slightly greater at the maximum thickness of the collar 3.

Dans la partie qui constitue le magasin (entre l'entretoise supérieure et l'entretoise intermédiaire) les deux guides 34, 35 et la bande 36 s'étendent sensiblement parallèlement à la tige de vissage.In the portion constituting the magazine (between the upper spacer and the intermediate spacer) the two guides 34, 35 and the strip 36 extend substantially parallel to the screw rod.

Les deux guides latéraux 34, 35 sont prolongés entre l'entretoise intermédiaire 30 et l'entretoise inférieure 25 par une portion recourbée 37 venant se fixer par son extrémité inférieure de part et d'autre de la fente 29.The two lateral guides 34, 35 are extended between the intermediate spacer 30 and the lower spacer 25 by a bent portion 37 which is fixed by its lower end on either side of the slot 29.

L'entretoise intermĂ©diaire 30 supporte un distributeur D, par l'intermĂ©diaire d'une pièce de support de forme en U, 40 dont l'Ă¢me 41 est fixĂ©e sur un prolongement vertical de l'Ă¢me de l'entretoise 30.The intermediate spacer 30 supports a distributor D, via a U-shaped support member, 40 whose core 41 is fixed on a vertical extension of the web of the spacer 30.

Cette pièce de support 40 (figure 6) comprend une aile 41' portant un axe horizontal 42' sur lequel pivote un levier 42 qui bascule dans un plan vertical. L'un des deux bras 43 de ce levier 42 porte une tige 44 qui s'étend dans l'aire de passage d'une butée 47 portée par le chariot 20. Le deuxième bras 48 de ce levier 42 coopère avec l'un des deux bras 49 d'un deuxième levier 50 monté oscillant autour d'un axe vertical 51 qui s'étend dans un évidement réalisé dans l'aile 41'. Le deuxième bras 52 de ce deuxième levier 50 est articulé à un tiroir 53 monté coulissant sur la deuxième aile 41" de la pièce de support 40 de manière à assurer ses déplacements en translation. Ce mécanisme assure donc une conversion du mouvement de translation verticale du chariot 20 (dans sa portion de course dans laquelle la butée 47 vient au contact de la tige 44) en un mouvement de translation horizontale du tiroir 53.This support piece 40 ( figure 6 ) comprises a wing 41 'carrying a horizontal axis 42' on which pivots a lever 42 which tilts in a vertical plane. One of the two arms 43 of this lever 42 carries a rod 44 which extends in the area of passage of a stop 47 carried by the carriage 20. The second arm 48 of this lever 42 cooperates with one of the two arms 49 of a second lever 50 mounted oscillating about a vertical axis 51 which extends into a recess formed in the wing 41 '. The second arm 52 of this second lever 50 is articulated to a slide valve 53 slidably mounted on the second wing 41 "of the support piece 40 so as to ensure its displacement in translation, which mechanism thus ensures a conversion of the vertical translation movement of the trolley 20 (in its stroke portion in which the stop 47 comes into contact with the rod 44) in a horizontal translational movement of the slide 53.

Dans cet exemple, le tiroir 53 (figure 8) est constitué par un tronçon tubulaire de section rectangulaire dont l'une des parois principales 54 coulisse dans une glissière portée par l'aile 41" de la pièce de support 40.In this example, the drawer 53 ( figure 8 ) is constituted by a tubular section of rectangular section, one of the main walls 54 slides in a slide carried by the flange 41 "of the support piece 40.

L'autre paroi principale 55, parallèle à la première 54, s'étend parallèlement et à faible distance du plan des guides latéraux 34, 35, au niveau de l'extrémité inférieure du magasin M.The other main wall 55, parallel to the first wall 54, extends parallel and at a short distance from the plane of the lateral guides 34, 35, at the lower end of the magazine M.

Cette paroi 55 est fendue par une découpe oblique 56 (sensiblement en forme de S comportant une région centrale horizontale et deux ailes obliques).This wall 55 is slotted by an oblique cutout 56 (substantially S-shaped having a horizontal central region and two oblique wings).

Cette découpe délimite d'un côté une languette supérieure 57 qui est doublée par une pièce en forme de Z, 58 pour former une fourche destinée à chevaucher les deux guides latéraux 34, 35 et, de l'autre côté, dans sa partie inférieure, une languette inférieure 59 qui constitue une pièce d'appui située à l'opposé de la fourche 57-58. L'écart entre le bord supérieur de la fourche 57-58 et le bord supérieur de la languette 59 est au moins égal à la somme du rayon (ou de la semi-largeur) du collet 3 et du rayon de la surface extérieure du fût 2.This cutout defines on one side an upper tongue 57 which is doubled by a Z-shaped piece, 58 to form a fork intended to overlap the two lateral guides 34, 35 and, on the other side, in its lower part, a lower tongue 59 which constitutes a support piece located opposite the fork 57-58. The gap between the upper edge of the fork 57-58 and the upper edge of the tongue 59 is at least equal to the sum of the radius (or semi-width) of the collar 3 and the radius of the outer surface of the barrel 2.

L'actionnement du distributeur D par le chariot 20 est conçu de manière à ce que :

  • Lorsque le chariot 20 est en position haute, la fourche 57-58 chevauche les deux guides latĂ©raux 34, 35 de manière Ă  retenir par son fĂ»t 2 l'Ă©lĂ©ment de fixation 1 situĂ© au bas de 1a pile contenue dans le magasin M. La languette 59 se trouve alors en dehors de la zone de passage dĂ©limitĂ©e par les deux guides latĂ©raux 34, 35 de manière Ă  libĂ©rer l'Ă©lĂ©ment de fixation 1 qui se trouvait prĂ©alablement retenu dans le tiroir 53 et Ă  permettre Ă  cet Ă©lĂ©ment de fixation 1 de descendre le long des guides 34, 35 pour se placer Ă  l'entrĂ©e du puits de vissage PV.
  • Lorsque le chariot 20 est dĂ©placĂ© dans le bas en vue d'effectuer le vissage de l'Ă©lĂ©ment de fixation 1 prĂ©sent Ă  l'entrĂ©e du puits de vissage PV, grĂ¢ce Ă  l'action de la butĂ©e 47 sur le dispositif de conversion constituĂ© par les leviers 42, 50, la fourche 57-58 se dĂ©cale latĂ©ralement pour laisser le passage de l'Ă©lĂ©ment de fixation 1 situĂ© en bas de la pile tandis que la languette 59 se dispose en regard de l'intervalle compris entre les deux guides latĂ©raux 34, 35 de manière Ă  retenir cet Ă©lĂ©ment de fixation 1.
  • Le distributeur D demeure dans cette position pendant la course de vissage de l'Ă©lĂ©ment de fixation 1 prĂ©sent dans le puits PV.
  • Il est ensuite ramenĂ© Ă  sa position initiale lorsque le chariot 20 remonte ensuite vers sa position haute, après vissage dudit Ă©lĂ©ment, grĂ¢ce Ă  une butĂ©e 60 solidaire du tube 33. Dans cet exemple, cette butĂ©e 60 consiste en une rondelle montĂ©e soudĂ©e sur le tube 33. L'entraĂ®nement du tube 33 par le chariot 20 s'effectue grĂ¢ce Ă  une butĂ©e 61 axialement rĂ©glable prĂ©vue Ă  1a partie supĂ©rieure du tube 33, sur laquelle le chariot 20 vient prendre appui en fin de course vers le haut.
  • Lors du retour du distributeur D en position initiale, la fourche 57-58 vient Ă  nouveau chevaucher les deux guides latĂ©raux 34, 35 pour retenir l'Ă©lĂ©ment de fixation 1 se trouvant en bas de la pile tandis que l'Ă©lĂ©ment 1 qui Ă©tait retenu prĂ©cĂ©demment par la languette 59 est libĂ©rĂ© et est aiguillĂ© vers le puits de vissage PV. Au dĂ©part de son trajet vers le puits de vissage PV, l'Ă©lĂ©ment de fixation (dans le cas oĂ¹ son collet 3 est de forme polygonale) est orientĂ© convenablement grĂ¢ce Ă  une butĂ©e fixe B portĂ©e par la glissière constituĂ©e par l'aile 41" de la pièce de support 40.
The actuation of the distributor D by the carriage 20 is designed so that:
  • When the carriage 20 is in the up position, the fork 57-58 overlaps the two lateral guides 34, 35 so as to retain by its shaft 2 the fixing element 1 located at the bottom of the stack contained in the magazine M. The tongue 59 is then outside the passage zone delimited by the two lateral guides 34, 35 so as to release the fixing element 1 which was previously retained in the drawer 53 and to allow this fixing element 1 to descend along the guides 34, 35 to be placed at the entrance of the PV screwing well.
  • When the carriage 20 is moved downwards in order to screw the fastening element 1 present at the inlet of the screwdriving well PV, thanks to the action of the stop 47 on the conversion device constituted by the levers 42, 50, the fork 57-58 shifts laterally to allow the passage of the fastening element 1 at the bottom of the stack while the tongue 59 is arranged opposite the gap between the two lateral guides 34, 35 so as to retain this fastening element 1.
  • The distributor D remains in this position during the tightening stroke of the fastener 1 present in the PV well.
  • It is then brought back to its initial position when the carriage 20 then rises towards its high position, after screwing of said element, thanks to a stop 60 secured to the tube 33. In this example, this stop 60 consists of a washer mounted welded to the tube 33. The driving of the tube 33 by the carriage 20 is effected by means of an axially adjustable stop 61 provided for in FIG. upper part of the tube 33, on which the carriage 20 is supported at the end of the race upwards.
  • When the distributor D returns to the initial position, the fork 57-58 again straddles the two lateral guides 34, 35 to retain the fixing element 1 at the bottom of the stack while the element 1 which was retained previously by the tongue 59 is released and is switched to the PV screwing well. At the start of its path towards the screwdriving well PV, the fixing element (in the case where its collar 3 is of polygonal shape) is oriented appropriately thanks to a fixed abutment B carried by the slide constituted by the wing 41 " of the support piece 40.

Comme précédemment mentionné, le puits de vissage PV comprend (figure 10), dans sa partie supérieure, des volets escamotables, articulés sur l'entretoise inférieure 25 et rappelés par ressort en position d'obturation. Ces volets 63 servent à retenir temporairement les éléments de fixation 1 par leurs collets 3 jusqu'à ce que la tige de la visseuse 21 exerce sur l'élément de fixation 1 un effort vers le bas pour provoquer l'escamotage. Pour pouvoir l'adapter à la longueur des éléments de fixation, la tige de vissage comprend des embouts interchangeables de longueur appropriée à celle des fûts desdits éléments.As previously mentioned, the PV screwing well comprises ( figure 10 ), in its upper part, retractable flaps, articulated on the lower spacer 25 and spring-loaded in the closed position. These flaps 63 serve to temporarily retain the fasteners 1 by their collars 3 until the rod of the screwdriver 21 exerts on the fastener 1 a downward force to cause the retraction. In order to adapt it to the length of the fastening elements, the screwing rod comprises interchangeable tips of appropriate length to that of the drums of said elements.

Ce puits de vissage PV comprend deux plaques de guidage 64, 65 sensiblement verticales, de profil légèrement concave (appropriées aux formes des collets 3) disposées l'une en regard de l'autre. L'une de ces deux plaques 65 est articulée dans sa partie inférieure (articulation 66). Les deux plaques 64, 65 présentent dans leurs parties supérieures, des portions obliques 67, 68 formant un évasement. La plaque 65 est sollicitée par des moyens élastiques (ressorts 69) en direction de l'autre plaque 64.This PV screwing well comprises two guide plates 64, 65 substantially vertical, slightly concave profile (suitable for the shapes of the collars 3) arranged one facing the other. One of these two plates 65 is articulated in its lower part (articulation 66). The two plates 64, 65 have in their upper parts, oblique portions 67, 68 forming a flare. The plate 65 is biased by resilient means (springs 69) towards the other plate 64.

Ces deux plaques 64, 65 servent ainsi à assurer un guidage avec autocentrage des éléments de fixation préalablement et pendant le vissage.These two plates 64, 65 thus serve to provide guidance with self-centering of the fasteners before and during the screwing.

Avantageusement, pour faciliter leur insertion dans le magasin de l'appareil, les Ă©lĂ©ments de fixation 1 pourront Ăªtre prĂ©alablement conditionnĂ©s de la façon dĂ©crite dans la demande de brevet FR No 04 07498 dĂ©posĂ©e le 6 juillet 2004 au nom de la Demanderesse, grĂ¢ce Ă  un profilĂ© de support souple prĂ©sentant au moins en partie la forme d'une bande dont une bordure latĂ©rale est munie d'une succession d'encoches dĂ©bouchant latĂ©ralement Ă  l'extĂ©rieur par une ouverture rĂ©trĂ©cie de largeur infĂ©rieure au diamètre des fĂ»ts de manière Ă  ce que les fĂ»ts puissent s'y engager et y Ăªtre maintenus par clipsage Z1.Advantageously, to facilitate their insertion into the magazine of the apparatus, the fastening elements 1 may be previously packaged in the manner described in the patent application. FR No 04 07498 filed on July 6, 2004 in the name of the Applicant, thanks to a flexible support profile having at least partly in the form of a band whose side edge is provided with a succession of notches opening laterally to the outside through a narrowed opening of smaller width to the diameter of the drums so that the drums can engage there and be held by clipping Z 1 .

Bien entendu, une fois que les Ă©lĂ©ments de fixation portĂ©s par la bande sont engagĂ©s dans le magasin, la bande doit Ăªtre Ă´tĂ©e. Cette opĂ©ration est obtenue par une simple traction effectuĂ©e au niveau de l'extrĂ©mitĂ© supĂ©rieure de la bande de manière Ă  provoquer un dĂ©sengagement successif des fĂ»ts hors des encoches.Of course, once the fasteners carried by the band are engaged in the magazine, the band must be removed. This operation is obtained by a simple traction performed at the upper end of the strip so as to cause successive disengagement of the barrels out of the notches.

Dans la variante d'exécution illustrée sur les figures 11 à 13, l'appareil de vissage comprend une pluralité de magasins verticaux (ici quatre) M1, M2, M3, M4 du type de celui visible sur les figures 4 et 5 et comportant chacun deux guides latéraux parallèles 70, 71 et un guide central 72, ces trois guides 70 à 72 étant reliés sur quatre niveaux (inférieur, supérieur + 2 niveaux intermédiaires) par des brides B1 à B4 constituées par des bandes de métal repliées, en forme de C.In the execution variant illustrated on the Figures 11 to 13 , the screwing device comprises a plurality of vertical magazines (here four) M 1 , M 2 , M 3 , M 4 of the type visible on the figures 4 and 5 and each having two parallel lateral guides 70, 71 and a central guide 72, these three guides 70 to 72 being connected on four levels (lower, upper + 2 intermediate levels) by flanges B 1 to B 4 constituted by metal strips folded, C-shaped.

Les brides B4 du niveau inférieur et celles du niveau intermédiaire supérieur B2 sont reliées ensemble par deux pièces de liaison respectives 73, 74 de forme circulaire qui s'étendent sur environ 60°.The flanges B 4 of the lower level and those of the upper intermediate level B 2 are connected together by two respective connecting pieces 73, 74 of circular shape which extend over approximately 60 °.

La pièce de liaison 73 situĂ©e au niveau intermĂ©diaire supĂ©rieur prĂ©sente une section sensiblement en forme de U. Elle est supportĂ©e par une platine de support 75 Ă  bord circulaire, de mĂªme rayon de courbure que la pièce 74, qui s'Ă©tend sur environ 120°.The connecting piece 73 located at the upper intermediate level has a substantially U-shaped section. It is supported by a support plate 75 with a circular edge, with the same radius of curvature as the piece 74, which extends over approximately 120 ° .

Cette platine 75 qui s'engage dans la cavitĂ© de la pièce de liaison 73 est fixĂ©e au sommet des colonnes 18, 19 grĂ¢ce Ă  deux vis coaxiales V1, V2. Cet assemblage permet un coulissement circulaire de la pièce de liaison 73 sur la platine 75. A cet effet, un système de roulement Ă  billes est prĂ©vu entre l'aile supĂ©rieure de la pièce de liaison supĂ©rieure 73 et la face supĂ©rieure de la platine 75. Ce roulement fait intervenir des billes qui s'engagent dans une gorge circulaire coaxiale 76 de la platine 75.This plate 75 which engages in the cavity of the connecting piece 73 is fixed to the top of the columns 18, 19 by means of two coaxial screws V 1 , V 2 . This assembly allows a circular sliding of the connecting piece 73 on the plate 75. For this purpose, a ball bearing system is provided between the upper flange of the upper connecting piece 73 and the upper face of the plate 75. This bearing involves balls that engage in a coaxial circular groove 76 of the plate 75.

GrĂ¢ce Ă  ces dispositions, il est possible de faire pivoter la structure rotative comprenant les magasins M1 Ă  M4 et les pièces de liaison 73, 74 de manière Ă  amener successivement l'orifice infĂ©rieur de chacun des magasins au droit du distributeur D. (Ce distributeur D, de mĂªme que la partie infĂ©rieure de l'appareil est similaire Ă  celle de l'appareil prĂ©cĂ©demment dĂ©crit en regard des figures 1 Ă  10 et ne sera donc pas dĂ©crit Ă  nouveau.)Thanks to these arrangements, it is possible to rotate the rotary structure comprising the magazines M 1 to M 4 and the connecting pieces 73, 74 so as successively to bring the lower orifice of each of the magazines to the distributor D. This distributor D, as well as the lower part of the apparatus is similar to that of the apparatus previously described with regard to the Figures 1 to 10 and will not be described again.)

L'orifice infĂ©rieur de chacun des magasins M1 Ă  M4 est Ă©quipĂ© d'un obturateur O1 Ă  O4 faisant intervenir deux broches radiales 77, 78 passant au travers de deux passages respectifs prĂ©vus dans l'Ă¢me de la bride B4 du magasin et solidaire d'une pièce d'actionnement 79 montĂ©e coulissante avec rappel par ressort 80 sur une tige radiale 81, solidaire de la bride B4, qui s'Ă©tend Ă  l'opposĂ© des broches 77, 78.The lower orifice of each of the magazines M 1 to M 4 is equipped with a shutter O 1 to O 4 involving two radial pins 77, 78 passing through two respective passages provided in the web of the flange B 4 of the store and secured to an actuating piece 79 mounted sliding with spring return 80 on a radial rod 81, integral with the flange B 4 , which extends opposite the pins 77, 78.

Cette pièce d'actionnement 79 est quant à elle munie d'un doigt vertical 82 destiné à coopérer avec un profil de came 82' d'une pièce d'actionnement fixe 83 solidaire de 1a structure du distributeur D.This actuating piece 79 is itself provided with a vertical finger 82 intended to cooperate with a cam profile 82 'of a fixed actuating part 83 integral with the structure of the distributor D.

GrĂ¢ce Ă  ces dispositions lorsqu'un magasin M1 Ă  M4 n'est pas dans l'axe du distributeur D la pièce d'actionnement 79 de l'obturateur O1 Ă  O4 est repoussĂ©e par le ressort 80 de manière Ă  ce que les broches 77, 78 s'engagent en travers de la section de passage du magasin et retienne les Ă©lĂ©ments de fixation contenus dans ce magasin.Thanks to these provisions when a magazine M 1 to M 4 is not in the axis of the distributor D the actuating part 79 of the shutter O 1 to O 4 is pushed by the spring 80 so that the pins 77, 78 engage across the magazine passage section and retain the fasteners contained in this magazine.

Lorsque ce magasin est amené dans l'axe du distributeur D, le doigt 82 sollicité par le profil de came 82' provoque un retrait de la pièce d'actionnement 79, contre l'action du ressort 80, et en conséquence un retrait des broches 77, 78. Lorsque le magasin est exactement dans l'axe du distributeur D, les broches 77, 78 se trouvent en dehors de la section de passage des éléments de fixation et, de ce fait, ces éléments de fixation descendent dans le distributeur D par simple gravité.When this magazine is brought into the axis of the distributor D, the finger 82 urged by the cam profile 82 'causes a withdrawal of the actuating part 79, against the action of the spring 80, and consequently a removal of the pins 77, 78. When the magazine is exactly in the axis of the dispenser D, the pins 77, 78 are outside the passage section of the fasteners and, therefore, these fasteners descend into the dispenser D by simple gravity.

Avantageusement, le profil de came 82' pourra comprendre une encoche servant à marquer le passage du magasin au droit du distributeur D et de le maintenir temporairement dans cette position (à la façon d'un cliquet).Advantageously, the cam profile 82 'may comprise a notch used to mark the passage of the magazine to the right of the distributor D and temporarily hold it in this position (in the manner of a pawl).

GrĂ¢ce Ă  ces dispositions, lorsque l'opĂ©rateur a vidĂ© un magasin M1 Ă  M4, par une simple rotation de la structure rotative, il met en service le magasin suivant. Il dispose ainsi d'un nombre important d'Ă©lĂ©ments de fixation.Thanks to these arrangements, when the operator has emptied a magazine M 1 to M 4 , by a simple rotation of the rotary structure, it puts into service the next store. It thus has a large number of fasteners.

Par ailleurs, comme ceci est visible sur la figure 11, la visseuse/dévisseuse 21 n'est pas montée directement sur le chariot 20 mais sur un coulisseau 95 réglable en hauteur sur le chariot 20. A cet effet, le coulisseau 95 comprend deux profilés latéraux de guidage 96, 97 qui s'engagent sur deux languettes latérales de guidage 83, 84 solidaires du chariot 20. Le positionnement axial du coulisseau 95 le long de ces languettes 83, 84 est assuré par un mécanisme de verrouillage faisant intervenir :

  • une sĂ©rie de perçages 85 rĂ©alisĂ©s sur la languette 83,
  • un pointeau montĂ© coulissant dans l'une des ailes du profilĂ© latĂ©ral 96, perpendiculairement au plan des languettes 83, 84, et sollicitĂ© vers celles-ci par un ressort. L'actionnement de ce pointeau est assurĂ© au moyen d'une poignĂ©e 86.
Moreover, as this is visible on the figure 11 , the driver / unscrewer 21 is not mounted directly on the carriage 20 but on a slider 95 adjustable in height on the carriage 20. For this purpose, the slider 95 comprises two lateral guiding sections 96, 97 which engage on two lateral guiding tongues 83, 84 integral with the carriage 20. The axial positioning of the slide 95 along these tongues 83, 84 is provided by a locking mechanism involving:
  • a series of holes 85 made on the tongue 83,
  • a needle mounted slidably in one of the wings of the lateral profile 96, perpendicular to the plane of the tongues 83, 84, and biased towards them by a spring. The actuation of this needle is provided by means of a handle 86.

GrĂ¢ce Ă  ces dispositions, pour rĂ©gler la position du coulisseau 95, dans un premier temps on effectue une traction sur le pointeau grĂ¢ce Ă  la poignĂ©e 86, de manière Ă  le dĂ©sassembler du perçage 85 de la languette 83 dans lequel il se trouvait engagĂ© puis on dĂ©place le coulisseau 95 jusqu'Ă  ce qu'il se trouve dans la position souhaitĂ©e. On relĂ¢che alors le pointeau de manière Ă  ce qu'il puisse s'engager dans un perçage 85 de la languette 83 correspondant Ă  cette position.With these provisions, to adjust the position of the slide 95, in a first step is performed a traction on the needle through the handle 86, so as to disassemble the hole 85 of the tongue 83 in which it was engaged then moves the slider 95 until it is in the desired position. The needle is then released so that it can engage in a hole 85 of the tongue 83 corresponding to this position.

Ce réglage en hauteur de la visseuse/dévisseuse 21 permet d'utiliser des éléments de fixation de tailles différentes sans avoir à modifier la longueur de la tige de vissage 31. La position des trous 85 pourra avantageusement mais non exclusivement correspondre à la hauteur des principaux éléments de fixation disponibles dans le commerce.This height adjustment of the screwdriver 21 makes it possible to use fasteners of different sizes without having to modify the length of the screwing rod 31. The position of the holes 85 may advantageously but not exclusively correspond to the height of the main fasteners available commercially.

Dans cette variante d'exĂ©cution la tige de vissage 31 est disposĂ©e Ă  l'intĂ©rieur d'un Ă©lĂ©ment tubulaire coaxial ET, mobile axialement (verticalement). Cet Ă©lĂ©ment tubulaire ET comprend un tronçon infĂ©rieur 87 de diamètre intĂ©rieur lĂ©gèrement supĂ©rieur au diamètre de la tige 31 et un tronçon supĂ©rieur 88 de diamètre intĂ©rieur lĂ©gèrement supĂ©rieur au diamètre de la partie extrĂªme 89 du nez de la visseuse/dĂ©visseuse 21.In this variant embodiment, the screwing rod 31 is disposed inside a coaxial tubular element ET, axially movable (vertically). This tubular element ET comprises a lower section 87 of inner diameter slightly greater than the diameter of the rod 31 and an upper section 88 of inside diameter slightly greater than the diameter of the end portion 89 of the nose of the screwdriver 21.

Le tronçon inférieur 87 coulisse dans un perçage 98 réalisé dans une entretoise 90 reliant les deux glissières latérales de guidage des éléments de fixation, à l'extrémité de la position recourbée 37 s'étendant au-dessus du puits de vissage.The lower section 87 slides in a bore 98 made in a spacer 90 connecting the two lateral guide rails of the fasteners, at the end of the curved position 37 extending above the screw well.

Le tronçon 88 comprend une collerette supérieure évasée 91. Il coulisse dans un perçage réalisé dans le fond d'un puits 92 solidaire d'une pièce de liaison 93 du chariot 20.The section 88 comprises a flared upper flange 91. It slides in a hole made in the bottom of a well 92 secured to a connecting piece 93 of the carriage 20.

Une rondelle de butée 94 est disposée au niveau de la jonction entre les deux tronçons 87, 88.A thrust washer 94 is disposed at the junction between the two sections 87, 88.

L'élément tubulaire ET sert à exercer une pression sur le collet 3 de l'élément de fixation 1 au cours de son vissage.The tubular element ET serves to exert pressure on the collar 3 of the fixing element 1 during its screwing.

Lorsque le chariot 20 est en position haute, l'Ă©lĂ©ment tubulaire ET est suspendu en position haute par le fond du puits 92 grĂ¢ce Ă  la collerette 91.When the carriage 20 is in the raised position, the tubular element ET is suspended in the high position by the bottom of the well 92 thanks to the collar 91.

Lorsque le chariot 20 est abaissĂ©, l'extrĂ©mitĂ© infĂ©rieure de l'Ă©lĂ©ment ET vient porter sur le collet 3 de l'Ă©lĂ©ment de fixation 1 prĂ©sent dans le puits de vissage PV en mĂªme temps que l'extrĂ©mitĂ© de la tige de vissage vient en prise avec la tĂªte de vis 5.When the carriage 20 is lowered, the lower end of the element ET comes to bear on the collar 3 of the fastening element 1 present in the PV screwing well at the same time that the end of the screwing rod comes into taken with the screw head 5.

Au cours de la phase de vissage, l'extrémité de l'élément tubulaire ET repousse le collet 3 jusqu'à la fin du vissage.During the screwing phase, the end of the tubular element ET pushes the collar 3 until the end of the screwing.

Claims (15)

  1. Device for the screwing of fixing elements (1) made from at least two preassembled parts of which one is constituted by a support and/or fixing part comprising a shaft (2) and a flange (3), while the other comprises a screw (5) pre-engaged in the first part, this device comprising at least one magazine (M) constituted by at least two parallel profiled guides (34, 35), a distributor (D) wherein opens the lower end of said magazine (M), this distributor (D) comprising a drawer (53) displaceable parallel to the plane of the lateral guides (34, 35) according to an axis of displacement perpendicular to the latter and a screwing shaft (PV) located in the axis of the screwing bar (31) of a screwing/unscrewing device (21) carried by a carriage (20) mobile along means of guiding (18, 19) parallel to said axis, the magazine (M) comprising two parallel lateral guides (34, 35) separated from one another by a distance marginally greater than the diameter of a shaft (2) but less than the width or the diameter of a flange (3) and a central guide (36) which extends across from lateral guides (34, 35) in a plane parallel to the plane of said lateral guides, at a distance from this plane marginally greater than the maximum thickness of the flange (3),
    characterised in that the drawer (53) comprises, in its upper portion, a fork (57, 58) able to overlap the two lateral guides (34, 35) and, in its lower portion, a support part (59) located opposite the fork (57, 58), with the difference in height between the fork (57, 58) and the support part (59) being at least equal to the sum of the radius (or of the half-width) of the flange (3) and of the radius of the outside surface of the shaft (2), in that an additional guiding element is associated to the lateral guides downstream of the distributor (D) in order to maintain the fixing elements (1) of which the flanges (3) have rectangular shapes oriented parallel to the axis of the lateral guides (34, 35) and in that a stop element (B) is provided on the distributor (D) in such a way that the polygonal or oblong flanges are arranged according to this orientation in the interval between the fork (57, 58) and the support part (59) of the drawer (53).
  2. Device according to claim 1,
    characterised in that the two lateral guides (34, 35) are extended beyond the distributor (D) by a curved portion (37) intended to bring the fixing elements in line with the screwing shaft (PV).
  3. Device according to claim 1,
    characterised in that it comprises means for actuating the distributor in such a way that the drawer can occupy:
    - a first position wherein the fork (57, 58) overlaps the two lateral guides (34, 35) in such a way as to retain via its shaft (2) the fixing element (1) located at the bottom of the stack contained in the magazine (M), and the support part (59) is located laterally offset in relation to the interval of the two lateral guides (34, 35) in such a way as to release the passage of the fixing element (1) which is located between the fork (57, 58) and the support part (59),
    - a second position wherein the fork (57, 58) is located laterally offset with regards to the two guides (34, 35) in order to leave the passage of the fixing element (1) located at the bottom of the stack while the support part (59) is arranged across from the interval between the two guides (34, 35) in such a way as to retain via its shaft (2) this fixing element (1).
  4. Device according to claim 3,
    characterised in that the displacements of the drawer (53) are controlled by the displacements of the screwing/unscrewing device (21) thanks to a vertical translation/horizontal translation conversion device.
  5. Device according to one of the preceding claims,
    characterised in that the screwing shaft (PV) has a height greater than the maximum height that a fixing element (1) can have, from the flange (3) to the tip of the screw (5).
  6. Device according to one of the preceding claims,
    characterised in that, in its upper portion, the screwing shaft (PV) comprises retractable means of retention (63) intended to retain the flanges (3) of the fixing elements (1) until the screwing bar (31) of the screwing/unscrewing device (21) becomes engaged in the shaft (2) of the fixing element (1) which is retained and comes into play on the head of the screw (5), these means of retention (63) then retracting under the effect of the pressure exerted downwards by the screwing bar (31) on the fixing element (1).
  7. Device according to one of the preceding claims,
    characterised in that inside the screwing shaft (PV), the flanges (3) of the fixing elements (1) are guided by two substantially vertical plates (64, 65) of a marginally concave profile arranged one across from the other, with one of these two plates (64, 65) being articulated in its lower portion and being solicited by elastic means (69) in the direction of the other plate to a position wherein these two plates (64, 65) are separated one from the other by a predetermined minimum distance.
  8. Device according to claim 1,
    characterised in that it comprises a plurality of vertical magazines (M1 to M4) each comprising two lateral parallel guides (70, 71) and a central guide (72) connected on at least two levels by two respectively lower and upper clamps (B1, B2) connected together by two respectively upper and lower linking parts (73, 74), of circular shape, the upper linking part being mounted slidingly on a support plate (75) fixed to the top of aforementioned means of guiding (18, 19) in such a way that the aforementioned magazines can carry out a circular movement making it possible to successively bring the lower orifice of each of these magazines in line with the distributor (D).
  9. Device according to claim 8,
    characterised in that the sliding of the upper linking part on the support plate (75) is provided by a ball bearing provided between the upper wing of the upper linking part (73) and the upper face of the plate (75).
  10. Device according to claim 8 and 9, characterised in that the lower orifice of each of the magazines (M1 to M4) is provided with a sealer (O1 to O4) actuated by the cam profile of an actuating part integral with the structure of the distributor (D).
  11. Device according to claim 10,
    characterised in that the sealers (O1 to O4) each include two radial branches (72, 78) passing through two respective passages provided in the core of the lower clamp (B4) of the magazine and integral with an actuating part (79) mounted slidingly with spring return (80) on a radial bar (81), integral with said clamp (B4), which extends opposite the pins (77, 78), said actuating part (79) comprising a finger which cooperates with a cam profile (82') of a fixed actuating part (83) integral with the structure of the distributor (D).
  12. Device according to claim 11,
    characterised in that the cam profile (82') comprises a notch used to mark the passage of the magazine in line with the distributor (D) and to maintain it temporarily in this position.
  13. Device according to claim 1,
    characterised in that the screwing/unscrewing device (21) is mounted on a slider (95) that can be adjusted in height on the carriage (20), this adjustment making it possible to use fixing elements of different sizes without having to modify the length of the screwing shaft (31).
  14. Device according to claim 1,
    characterised in that the screwing shaft (31) is arranged inside an axially mobile coaxial tubular element (ET) axialy movable, of which the lower end exerts a pressure on the flange (3) of the fixing element during its screwing.
  15. Device according to claim 14,
    characterised in that the tubular element (ET) comprises a lower section (87) of an inside diameter marginally greater than the diameter of the screwing shaft (31) and an upper section (88) of an inside diameter marginally greater than the diameter of the extreme portion (89) of the nose of the screwing/unscrewing device (21), this upper section comprising a flared skirt and sliding in a hole of a linking part integral with the carriage (20), a thrust washer (94) being arranged at the junction between the two sections (87, 88).
EP05807795A 2004-09-28 2005-09-28 Device for the semi-automatic screwing of fixing elements Not-in-force EP1799403B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0410234A FR2875723B1 (en) 2004-09-28 2004-09-28 APPARATUS FOR THE SEMI-AUTOMATIC CUTTING OF FIXING ELEMENTS
FR0508402A FR2875724B1 (en) 2005-08-04 2005-08-04 APPARATUS FOR THE SEMI-AUTOMATIC CUTTING OF FIXING ELEMENTS
PCT/FR2005/002409 WO2006035168A1 (en) 2004-09-28 2005-09-28 Device for the semi-automatic screwing of fixing elements

Publications (2)

Publication Number Publication Date
EP1799403A1 EP1799403A1 (en) 2007-06-27
EP1799403B1 true EP1799403B1 (en) 2010-12-29

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EP05807795A Not-in-force EP1799403B1 (en) 2004-09-28 2005-09-28 Device for the semi-automatic screwing of fixing elements

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AT (2) ATE521451T1 (en)
DE (1) DE602005025664D1 (en)
RU (2) RU2007116160A (en)
WO (2) WO2006035168A1 (en)

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US11289216B2 (en) * 2019-05-16 2022-03-29 Framatome Inc. Nuclear reactor core shroud securing device

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DE4240606A1 (en) * 1992-12-03 1994-06-09 Hardo Befestigungen Gmbh Device for screwing in fasteners
DE9420475U1 (en) * 1994-12-22 1995-02-23 Harald Zahn GmbH, 69168 Wiesloch Device for fastening roof sealing and insulating material on flat roofs
DE19520110C1 (en) * 1995-06-01 1997-01-30 Trurnit Friedrich Gmbh Co Kg Device for introducing fasteners into plate-like thermal insulation material on roofs or the like
DE29908282U1 (en) * 1999-05-08 1999-08-12 Harald Zahn GmbH, 69168 Wiesloch Device for screwing in fasteners
FR2796872B1 (en) * 1999-07-27 2002-02-15 Rlb APPARATUS FOR SCREWING FIXING ELEMENTS
DE50212669D1 (en) * 2001-01-22 2008-10-02 Sfs Intec Holding Ag DEVICE FOR SCREWING MAGAZINED PREPARED FASTENING ELEMENTS
DE10102704C1 (en) * 2001-01-22 2002-07-25 Sfs Ind Holding Ag Heerbrugg Fixing element screwing device has screwing device, holding device, anti-turn lock and screwdriver made as one unit
DE10163621A1 (en) * 2001-12-21 2003-07-10 Zahn Harald Gmbh Magazine for automatic screwing machine for fixing insulating material to flat roofs has two or more cages with common delivery end leading to sorting device for separating out fixings individually from magazine flow

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EP1796876A1 (en) 2007-06-20
ATE493232T1 (en) 2011-01-15
EP1796876B1 (en) 2011-08-24
DE602005025664D1 (en) 2011-02-10
RU2007116112A (en) 2008-11-10
EP1799403A1 (en) 2007-06-27
RU2007116160A (en) 2008-11-10
WO2006035168A1 (en) 2006-04-06
WO2006035168B1 (en) 2006-11-09
ATE521451T1 (en) 2011-09-15
WO2006035167A1 (en) 2006-04-06
WO2006035167B1 (en) 2006-06-01

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