EP0665357B1 - Procédé et dispositif pour la fabrication d'un cadre espaceur pour vitrages isolants - Google Patents

Procédé et dispositif pour la fabrication d'un cadre espaceur pour vitrages isolants Download PDF

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Publication number
EP0665357B1
EP0665357B1 EP95100596A EP95100596A EP0665357B1 EP 0665357 B1 EP0665357 B1 EP 0665357B1 EP 95100596 A EP95100596 A EP 95100596A EP 95100596 A EP95100596 A EP 95100596A EP 0665357 B1 EP0665357 B1 EP 0665357B1
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EP
European Patent Office
Prior art keywords
frame
frame piece
bending
piece section
straight connector
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.)
Expired - Lifetime
Application number
EP95100596A
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German (de)
English (en)
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EP0665357A1 (fr
Inventor
Franz Bayer
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Bayer Isolierglas und Maschinentechnik GmbH
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Bayer Isolierglas und Maschinentechnik GmbH
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/74—Making other particular articles frames for openings, e.g. for windows, doors, handbags
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673—Assembling the units
    • E06B3/67304—Preparing rigid spacer members before assembly
    • E06B3/67308—Making spacer frames, e.g. by bending or assembling straight sections
    • E06B3/67313—Making spacer frames, e.g. by bending or assembling straight sections by bending

Definitions

  • the invention relates to a method for producing a especially a desiccant-containing spacer frame for insulating glass panes, whereby a desiccant-free Hollow profile to form the frame corners around parallel Bending axes bent and in the area of a last frame corner initially left unbent and in the area of a last one Connection point of two frame leg parts Frame leg is left open in that a first Frame leg part is already bent and the other second Frame leg part remains unbent at the last corner, being in one of the frame leg parts, in particular in the already bent frame leg part, a straight connector inserted, then around a parallel to the bending axes extending pivot axis swung open again or is bent up that the protruding part of the straight connector is insertable into the other frame leg part, after which the Frame leg parts using this straight connector Connection point to be connected.
  • the invention further relates to a device for Carrying out the method with a holding device for one bent at several corners, on a frame leg still open frame and with a bending device for Bending a last frame leg part and manufacturing the last bend, the bending device being one Bending leg with which the to be bent Frame leg part in relation to a fixed abutment this is bendable.
  • a method of the type mentioned at the outset is, for example from DE-37 40 922 C2, from DE-39 42 808 C2 or from DE-42 23 730 A1 known. It can be done before filling or after Fill the frame legs with desiccant of the straight connector be inserted into a frame leg part, he can either be inserted into the frame leg part, which still has to be bent for final closure (DE-42 23 730 A1, Fig. 6) or in the other frame leg part, that is already bent.
  • the inventive method for solving this problem is characterized in that the second frame leg part partially bent, the first frame leg part gripped and by the second frame leg part under elastic deformation adjacent frame leg pivoted away and in front of Completion of the last bend when the second frame leg part in the closing direction pivoted back and while performing the last Bending movement of the second frame leg part of the protrusion of the straight connector inserted into the frame leg part becomes.
  • the Swiveling back the already bent frame leg part automatically positions it in relation to its end position slightly oblique, which also leads to the inclination of the other frame leg part during its bending process can be coordinated accordingly so that an intersection of the two frame leg parts results in by appropriate choice of the individual movements can be that this intersection at the entrance to the Frame leg part comes to rest, in which the protrusion the straight connector must be pushed in and that foremost end of this supernatant also on this Intersection comes to lie approximately, so that a further bending on the one hand and swiveling back automatically for a guided insertion of the supernatant of the Straight connector during the last bending path.
  • the straight connector in the first bent first frame leg part is inserted, it is useful if during the bending process of the second Frame leg part the first frame leg part with the Swiveled straight connector back and the protrusion of the Straight connector during the last part of the bending process is inserted into this second frame leg part.
  • This ensures that the supernatant to be introduced Straight connector compared to that in the last bending phase existing frame leg part first moved away and then can be moved towards this again, so that it then during of the last bending path deep into this second Frame leg part can be inserted.
  • a reverse arrangement would have the first frame leg part the only a swivel according to the bending movement straight connector to be pushed through.
  • the insertion movement of the straight connector into the Frame leg part can consist of a swivel movement and one rectilinear sliding movement. Consequently can the required relative movements between the Overhang of the straight connector and the frame leg part, in which this supernatant should be inserted after the appropriate requirements and dimensions be coordinated so that there is no canting is coming.
  • the Swing motion prevail while towards the end rectilinear sliding movement will predominate.
  • connection point between the two Frame leg parts and their bend or corner opposite the Neighboring frame legs are not under one of the bending movements opposite voltage remains, it is advantageous if after pushing the two frame leg parts together Bend the first frame leg part over a right one Angle continues to an angle slightly below 90 ° and the second part of the frame leg also opposite him neighboring frame legs slightly towards the inside of the frame is arched over to the elastic springback forces of the Frame leg parts to be considered in such a way that they after opening the brackets at right angles to the subsequent, adjacent to them Frame legs run. So it will be the two Frame leg parts somewhat compared to the desired angle overbend, and that to the expected elastic Springback so that it is in after the bending operations spring back the desired right angle. They would this right angle due to the fixed connection to the The connection point may also be observed differently, however thus greater certainty of the desired shape accuracy of the entire frame.
  • the method according to the invention above all the last part of the bending path of the last one to be bent Frame leg part temporally and also from the position used for that already in a frame leg part inserted straight connector faster and easier in the to be able to insert another frame leg part without the frame is swung open or bent open must be that this leads to permanent deformations by which the closed frame has angular deviations in its Has corners. Rather, it can be done with less swinging up the frame of the straight connectors in the others Frame leg part are introduced so that the already curved frame corners keep their angular position and shape.
  • the insertion and insertion of the supernatant of the Straight connector goes with the last phase of the bend the last to be bent frame leg part in an advantageous Way hand in hand. This can also be done mechanically Closing a spacer frame can be performed without thereby reducing the angularity of the finished frame imprecise and a corresponding rework required do.
  • this device is according to the invention characterized in that means for elastic pivoting back or bending back the frame leg part to be bent opposite already curved frame area and further Means are provided with which one in one of the Straight leg connectors in the other legs Frame leg part is insertable and insertable when the frame part to be bent is bent so far that the free end of the protrusion of the straight connector and the free End of the frame leg part receiving the overhang face each other and that means are provided through which the final bend of the still to be bent Frame leg and pushing together with the Straight connectors can be carried out at the same time.
  • the bend of the second can still be increased bending frame leg part and the swinging of this opposite frame area with the first Frame leg part forcibly coupled together or connected to be performed that it is not permanent Deformation of the frame and not to constraints and the like comes.
  • time is saved because of the last part of the bending process of the second Frame leg part is also used to introduce the Protruding the straight connector.
  • a particularly useful embodiment of the device a forced mutual guidance of the last Bending movement and pushing the together through the straight leg to be connected frame leg parts characterized in that the pivotable bending leg for bending the second frame leg part one in Use position over the free end of the second Extending frame leg part or
  • an openable clamp for grasping the first, in particular containing the straight connector Frame leg part is provided on a swivel part is attached, wherein the pivot part is the end of the Continuation of the bending leg under the frame Control surface and the free end of the continuation of the Bend leg this control surface at the beginning of the introduction of the Overhang of the straight connector, and that a further pivoting of the bending leg and its Continuation with the swiveling movement of the swiveling device is forcibly coupled, one too fast Bending movement in relation to the swiveling movement of the Swivel device through the overlapping or underlapping Parts is locked.
  • the pivoting device has a control surface and Bending leg a continuation coming into contact with it have, so it becomes a mutual one mechanically forcibly leading the two movements of the two Frame leg parts when performing the last bending movement of the second frame leg part and pushing it together reached the protrusion of the straight connector in a simple manner.
  • the swivel part which due to the frame size relatively large swivel radius required, not on one long arm must be attached, it is advantageous if the swivel part has an arcuate guide has relative to which it is slidable.
  • a swivel Lever for the swivel part is therefore by the corresponding arcuate guide replaced, the arc to Correspondence with a pivoting movement of a circular arc piece can be, but also has the advantage that one of a curve shape modified from a circular arc can be selected could.
  • a guide rail can be used as the curved guide be provided on which the swivel part on both sides with Counter guides, especially with guide rollers or can attack the same guide elements.
  • the guide can have end stops for the swivel part, causing the largest opening movement and the return movement may be limited for the first frame leg part. This can prevent a too strong one Swing open the already bent frame area before The protrusion of the straight connector is inserted and thereby remaining beyond the elastic limit Deformations occur in this frame area.
  • the swivel part can - in addition - a straight guide and a feed device for the frame leg part have gripping clamp that is approximately parallel to a tangent is oriented to the arcuate guide. In this way a linear movement can be superimposed on the swiveling movement if, for example, with regard to a a correspondingly large length of the straight connector is desirable is.
  • a straight guide you can also depending The position of the clamp relative to the swivel part is long enough or shorter straight connectors are taken into account.
  • this receives Clamping device has a double function by the one hand the Includes leg of the bend, against which the Frame leg part in particular around an abutment to be bent, while also the entire Frame during this bending process and its closing is held. It would even be conceivable that this Clamping device is part of a transport device with which the so far prefabricated frame from a filling station for Desiccant comes to be finally bent elsewhere and to be closed, so that already during this Transport route the transport time can be used to the mentioned closing of the frame entirely or at least partially performed.
  • the swivel part With its guide, the swivel part can be transverse to the connecting or connected frame leg parts and across be movable or pivotable over the course of the guide and have a drive for this movement or pivoting, so that the junction of the two with each other connected frame leg parts transverse to their course to Interior of the frame or to the center of the frame is movable.
  • the Bending is chosen so that after removing the Mounts due to the elastic spring back forces actually targeted angle occurs at the frame corners and is available.
  • the compulsory mutual leadership of the Movements in completing the last part of the Bend the second frame leg part and the Pushing it together with the straight connector is something else continued beyond the position in which the two Frame leg parts form an angle of 180 ° with each other, so continue in alignment.
  • the frame to be closed can be of a single one Clamping device to be held on the frame leg, the last bend to be produced is immediately adjacent and this clamp can do this last bend preferably be closely spaced.
  • Correspondingly long areas along the frame up to the first frame leg part are available to the at elastic opening before inserting the overhang of the straight connector occurring deformations as possible to be able to distribute many and long areas of the frame that permanent deformations are avoided.
  • the point of application of the clamping device for the frame can less than half the length of the last bend Frame leg be removed.
  • the continuation of the bending leg can be at its free end have a role with which they guide the guide surface of the Swivel part acted upon. Because when they work together Continuing with the leadership area is not just common Swivel movements, but also towards each other Sliding movements can take place through this role mutual friction can be reduced so that the Swing in and push in the excess of the Straight connector is not affected.
  • the imaginary center of the swivel part can on the frame outside of the first frame leg part side facing away and laterally one at right angles through the Junction of the frame level on the second frame leg part facing away.
  • Such an arrangement of the pivot center leads to that both the first frame leg part and this neighboring frame legs and possibly even in Circumferential direction of the frame subsequent further Frame legs to take into account when opening the frame the protrusion of the straight connector against each other such be pivoted that the bending points in between if possible little stressed or possibly deformed. Also results such a particularly convenient way back when swiveling in opposite direction if the supernatant of the Straight connector is inserted.
  • the curvature of the guideway for the swivel part can - how already briefly mentioned - be a circular arc, being a tangent to the end of this guideway in the sense of a Collapse of the frame leg parts approximately parallel to the Line is arranged on which the closed Frame legs should run.
  • the swivel movement when Closing the frame practically ends in the direction in which the closed frame leg and its straight connector run.
  • the method already described also a device with which mechanically follows a spacer frame the bending and eventual filling or even before filling at subsequently drilled holes in the frame legs can be closed without the dimensional accuracy the single angle of this frame suffers and rework makes necessary.
  • the Working speed can be increased because on the one hand such machining processes generally faster than Can be done by hand and beyond that last part of bending the second frame leg part time is already being used to assemble with the Protruding the straight connector.
  • a device designated as a whole is used for Manufacture and in particular to complete one with 2 designated spacer frame, also in the following "Frame 2" for short, for insulating glass panes or Insulating washers. Doing so will at least initially Hollow section free of desiccant to form the frame corners 3 bent around parallel bending axes and in the area of a last frame corner left unbent and in the area one last, a junction 6 two Frame leg parts 7 and 8 having frame legs 5 in that a first frame leg part 7 is already bent, which is shown in Fig.1, and the another second frame leg part 8 at the last corner remains unbent.
  • This state of manufacture is shown in FIG solid lines are shown while the further Method dash-dotted in Fig.1 and also in the following figures is clear. Between the frame corners 3 run through continuous, uninterrupted frame legs 4.
  • the device 1 has one in more detail below Descriptive holding device for the at several corners 3 already bent, on a last frame leg 5 initially still open frame 2 and above all belongs to the device 1 a bending device 11 for bending the last one Frame leg part 8. It is previously in one of the Frame leg parts, in the embodiment in the already bent frame leg part 7 also in Fig.1 and straight connector 10 also recognizable in the following figures inserted, the supernatant 10a in the other Frame leg part, so in the embodiment still too bending frame leg part 8 is to be inserted.
  • the bending device 11 for bending the frame leg part 8 and thus to produce the last bend has one Bending leg 12, with which this is to be bent Frame leg part 8 against a fixed abutment 9 is bendable around this.
  • the bending leg 12 attacks the outside of the frame leg 8 to this opposite the fixed abutment 9 to be able to bend it.
  • FIGS. 1 to 8 show this bending leg 12 and the frame leg part 8 in which it is acted upon show corresponding different positions.
  • “Outside" of the frame leg part 8 is the one Side meant that on the finished frame 2 outside, that is Scope of this frame 2 comes to rest.
  • the bending leg 12 engages with the frame leg part 8 With the help of a retaining clip 13, so that a corresponding precise guidance of the frame leg part 8 is made possible.
  • the device 1 also belongs even closer descriptive means for elastic pivoting or bending of the the frame leg part 8 to be bent, already curved frame area, which according to the dash-dotted representation in Fig.1 and with solid lines made representations of further Figures of the bending device 11 and the second Frame leg part 8 must be moved so that this Frame leg part 8 when bending with the projection 10a of the straight connector 10 already inserted collides.
  • the same would be necessary if the straight connector 10 with a protrusion 10a inserted in the frame leg part 8 would be and then this protrusion 10a with the already bent first frame leg 7 could collide.
  • Means are also provided with which the in the Frame leg part 7 stuck straight connector 10 and above all its projection 10a in the other frame leg part 8 is insertable and insertable when it is bent so far is that the free end 10b of the projection 10a of the Straight connector 10 and the free end of the protrusion 10a receiving frame leg part 8 each other according to Figure 2, Figure 3 and in particular according to Figure 4 and are very close to each other, so that the straight connector 10 practical in the frontal opening of the now by a significant part its entire bend bent frame leg part 8 points in.
  • the device 1 also includes means by which the final bend of the still to be finished Frame leg part 8 and pushing together with the Straight connector 10 in this last phase of manufacturing are feasible at the same time.
  • the device 1 is designed so that the second Frame leg part 8 is therefore initially partially bent first frame leg part 7 detected and by the second Frame leg part 8 with elastic deformation adjacent Frame leg 4 pivoted away and before the completion of the last bend or corner with the second still inclined Frame leg part 8 again in the closing direction pivoted back and while performing the last Bending movement of the second frame leg part 8 of the protrusion 10a of the straight connector 10 in the frame leg part 8 is inserted.
  • This swiveling back of the Frame leg part 7 and the adjacent frame leg 4 in the closed position is in an intermediate position in Fig. 6 shown during the subsequent first closed position can be seen in Fig. 7.
  • the still to be explained device for pivoting the curved frame leg part 7 and the bending device 11 are controlled in such a way that the overhang 10a of the straight connector 10 simultaneously with the last part of the Bending movement insertable and the first insertion movement is feasible if the two frame leg parts 7 and 8 2 to 4 an obtuse angle on the inside of the Have frame 2 with each other, which is only slightly smaller than 180 ° is.
  • pivotable bending leg 12 a in Use position over the free end of the second Frame leg part 8 protruding extension 14 or Continued, which according to the embodiment compared to the bending leg 12 via an offset 14a some distance to the outside of the frame leg part 8 Has. Furthermore, an openable clamp 25 for detecting the im Embodiment of the straight connector 10 containing the first Frame leg part 7 is provided, which on a whole essential part of the device 1, namely on one is attached in the whole designated 16 pivoting part.
  • This pivot part 16 has the end of the continuation or Extension 14 of the bending leg 12 on the frame side engaging control surface 17 on a projection 18th is arranged, via which the extension 14 at the beginning of Insertion movement of the protrusion 10a engages as one does clearly recognizes in Figures 2 to 4.
  • the free end of the Extension or continuation 14 of the bending leg 12 thus acts on this control surface 17 at the beginning of Introduce the protrusion 10a of the straight connector 10 by it comes to lie on it or presses on it.
  • Another Pivoting of the bending leg 12 and its extension or continuation 14 is with the pivoting of the Swivel part 16 forcibly coupled. Too fast Bending movement in relation to the swiveling movement of the Swivel part 16 is thereby blocked.
  • a matching angle results when the Junction of the frame leg parts 7 and 8 in the middle this last frame leg is arranged. Is it something? outside the center, the angles of the two must be Frame leg parts 7 and 8 at the beginning of the insertion of the Overhang 10a of the straight connector 10 corresponding to something differ from each other.
  • the pivoting part 16 is not on a correspondingly long one Swivel arm must be stored, it has in the embodiment an arcuate guide 19, relative to which it is is movable.
  • This arcuate guide 19 is in the Embodiment designed as a guide rail which the swivel part 16 on both sides with counter guides, in Embodiment guide rollers 20 on both sides with two guide rollers 20 each.
  • the Guide rollers 20 are fixed and the guide rail with the Swivel part 16 connected and opposite the fixed Rolling would be movable.
  • the swivel part 16 also has a straight guide 22 and an adjustable relative to it Feed device 23, the working cylinder 24 in the Figures 4 to 8 can be seen. With this feed device 23 can still clamp the frame leg part 7 clamp 25 can be adjusted relative to the pivoting part 16, these Adjustment movement and the corresponding guide 22 approximately parallel to a tangent to the arcuate guide 19 is oriented, as can be seen in the figures. This can either make the pivoting movement a straight line Motion are superimposed or the clamp 25, that is Fastening the swivel part 16 to the frame leg part 7 can be changed depending on the length of the straight connector 10.
  • the one at the one side still open frame 2 is close to the Bending point of the second frame leg part 8 at this neighboring frame legs with the aid of the clamping device 26 clamped while adjacent to the bending leg 12 attacks the frame leg part 8 and bends it while another clamping device, namely the clamp 25 on the first frame leg part 7 is attached so that in between the largest possible part of the frame 2 remains free.
  • frame leg 7 sits down, so to speak composed of a swivel and a sliding movement, which on best by swinging with a big one Radius of curvature simulated and adapted to the requirements can be, the location of the pivot center a Role and is chosen so that the last part of the Panning movement in the direction of the last one formed Frame leg 5 is oriented.
  • the insertion movement of the straight connector 10 in the Frame leg part 8 can consist of a pivoting movement and a rectilinear sliding movement. This could by appropriate shaping of the guide 19th can be achieved, especially the last part of this Guideway parallel to the last manufactured and closed frame leg 5 runs. However, if the Tangent to the last part of the swivel movement parallel to this frame leg 5 runs after its completion, can dispense with a superimposed linear movement will. In addition, such would be superimposed rectilinear movement also the feed device 23 With which a certain pressure effect on the Junction 6 can be exercised.
  • the device 1 is to be carried out in the exemplary embodiment of this additional process step that the pivoting part 16 with its guide 19 transversely to the connecting or connected frame leg parts 7 and 8 and Movable or pivotable transversely to the course of the guide 19 is and a drive 28 in the form of a working cylinder 29 Transmission linkage 30 for this movement or pivoting having.
  • the connection point 6 of the two interconnected frame leg parts 7 and 8 after Completion of this connection according to Figure 7 transverse to it Moving to the inside of the frame or towards the center of the frame be, as in Fig.8 and in the third step of the Fig. 9 is clearly shown.
  • FIGs 1 to 8 is shown schematically that the guide 19, which is actually stationary and on which the swivel part 16 is movable, the working cylinder 29 indirectly via the linkage 30 and one as an extension designed lever 31 attacks.
  • the working cylinder 29 can are driven synchronously with the bending leg 12, if both frame leg parts 7 and 8 to each other Stop (Fig.7) are pushed together so that both Frame leg parts 7 and 8 according to Figure 8 each over their final angle to their neighboring frame legs are bendable.
  • the overbend is chosen so that the elastic restoring forces then the two Frame leg parts 7 back into their final position Spring back 90 ° in relation to the neighboring frame legs, so that then a precisely rectangular frame 2 with four corners of 90 ° each can be removed.
  • this continuation 14 of the Bending leg 12 at its free end a roller 32, with which it the guide surface 17 of the pivot member 16th acted upon, or with which the continuation 14 can slide or roll over this guide surface 17.
  • the guide rail for the swivel part 16 is a Circular arc, one tangent to the second Frame leg part 8 facing the end of this track in For example, to push the frame leg parts together is arranged parallel to the line on which the closed Frame leg 5 should run.
  • the left end stop in the drawing 21 is arranged so that the pivot member 16 just one has reached the highest altitude and from there to the right only can be moved down and pivoted.
  • the clamp 25, which is displaceable relative to the swivel part 16 in the embodiment with respect to their displacement adjustable stops 33 in particular can be changed through such adjustable by means of working cylinders 34 Stops 33 on straight connectors 10 of different lengths can be set, as already mentioned above.
  • Spacer frame 2 containing desiccant Insulation washers except for a corner 3 of all others Frame corners first bent around parallel bending axes. The last corner of the frame remains unbent so that the Frame 2 in the area of a one junction 6 two Frame leg parts 7 and 8 having frame legs 5 thereby initially remains open.
  • a first frame leg part 7 this frame leg 5 is also already initially bent.
  • a Straight connector 10 inserted so far that there is still a protrusion 10a protrudes therefrom.
  • the frames are 2nd and the frame legs 4 each approximately parallel to the Edges of the drawing sheets shown. Is preferred however, that in reality the frame 2 and the on it attacking device 1 with the bending device 11 and the In contrast, pivoting part 16 rotated somewhat clockwise are, for example, about 45 °.
  • Fig.1 there is one Dashed line V shown, which mean a vertical against which the frame leg parts 7 and 8 are each about 45 °, as is the case with the devices according to DE-37 40 922 C2 or DE-39 42 808 C2 is known.
  • the straight connector 10 with a continuous opening or a U-shaped cross section with a continuous Provided longitudinal cavity, this filling with desiccant through the straight connector already inserted respectively.
  • the frame 2 could be completed as described above in the mentioned rotated clockwise by 45 ° compared to the illustration Position at least partially filled with desiccant and then completed in this position or by the Holding devices and clamps 25 and 26 in this Orientation to the workstation in which they are brought the final closing of the frame 2 according to the previous description.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Claims (25)

  1. Procédé de fabrication d'un cadre écarteur (2), notamment contenant un dessiccateur, pour des vitrages isolants, un profilé creux dépourvu de dessiccateur étant, afin de former les coins (3) du cadre, replié autour d'axes de pliage respectifs parallèles, et laissé initialement non replié dans la région d'un dernier coin du cadre et, dans la région d'une dernière branche de cadre (5), présentant un point d'assemblage (6) de deux parties (7, 8) de branche de cadre, laissé ouvert par le fait qu'une première partie (7) de branche de cadre est déjà repliée tandis que l'autre ou deuxième partie (8) de branche de cadre reste encore non repliée au dernier coin, un connecteur rectiligne (10) étant emboíté dans une des parties de branche de cadre, notamment dans la première partie (7) de branche de cadre, déjà repliée, la deuxième partie (8) de branche de cadre étant ensuite repliée et le cadre (2) étant à nouveau ouvert, par pliage ou pivotement autour d'un axe de pivotement s'étendant parallèlement aux axes de pliage, suffisamment pour que la partie dépassante ou projection (10a) du connecteur rectiligne (10) puisse être introduite dans l'autre partie de branche de cadre. à la suite de quoi les parties (7, 8) de branche de cadre sont assemblées au moyen de ce connecteur rectiligne (10), formant ainsi le point d'assemblage (6), caractérisé en ce que la deuxième partie (8) de branche de cadre est partiellement repliée, la première partie (7) de branche de cadre est saisie et éloignée par pivotement de la deuxième partie (8) de branche de cadre sous déformation élastique de la branche de cadre voisine (4) et, avant la réalisation du dernier pliage, avec la deuxième partie (8) de branche de cadre encore en position oblique, pivotée en retour dans la direction de fermeture et, pendant la réalisation du dernier mouvement de pliage de la deuxième partie (8) de branche de cadre, la projection (10a) du connecteur rectiligne (10) est enfilée dans la deuxième partie (8) de branche de cadre.
  2. Procédé selon la revendication 1, caractérisé en ce que le pivotement de la première partie (7) de branche de cadre dans la position de fermeture du cadre (2) et l'enfilage du connecteur rectiligne (10) sont effectués lorsque la deuxième partie (8) de branche de cadre doit être encore repliée d'un petit angle, notamment environ de l'angle sous lequel la première partie (7) de branche de cadre, par son pivotement en éloignement de la deuxième partie (8) de branche de cadre, est disposée par rapport à la position finale des deux parties de branche de cadre une fois le cadre (2) achevé, de sorte que les deux parties (7, 8) de branche de cadre, au début de l'enfilage de la projection (10a) du connecteur rectiligne (10), sont disposées sous un angle obtus entre elles et notamment sous un angle aigu, éventuellement identique, par rapport à une horizontale commune ou encore à la position finale ultérieure.
  3. Procédé selon la revendication 1 ou 2, le connecteur rectiligne (10) étant emboíté dans la première partie (7) de branche de cadre, repliée en premier lieu, caractérisé en ce que, pendant le processus de pliage de la deuxième partie (8) de branche de cadre, la première partie (7) de branche de cadre est pivotée en retour avec le connecteur rectiligne (10), et la projection (10a) du connecteur rectiligne (10) est enfilée dans cette deuxième partie (8) de branche de cadre pendant la dernière partie du processus de pliage.
  4. Procédé selon une des revendications 1 à 3, caractérisé en ce que, pour un cadre rectangulaire (2) avec des branches de cadre (4, 5) disposées à angle droit entre elles, l'enfilage de la projection (10a) du connecteur rectiligne (10) dans la dernière partie (8) de branche de cadre commence environ lors d'un pliage de plus de 80°, notamment de 84° à 86°.
  5. Procédé selon une des revendications 1 à 4, caractérisé en ce que le cadre (2), encore ouvert sur un côté, est serré à proximité du point de pliage de la deuxième partie (8) de branche de cadre, sur la branche de cadre (4) voisine de cette partie (8), et un mors de pliage, une branche de pliage (12) ou un outil de pliage analogue agit sur la deuxième partie (8) de branche de cadre au voisinage de ce point de serrage, notamment y est fixé, et en ce qu'un autre dispositif de serrage ou pince (25) est fixé sur la première partie (7) de branche de cadre, tandis que le reste du cadre (2) reste libre.
  6. Procédé selon une des revendications 1 à 5, caractérisé en ce que le pliage de la dernière partie (8) de branche de cadre et le pivotement rentrant et l'enfilage du connecteur rectiligne (10) sont, au moins à partir de la première pénétration de la partie dépassante du connecteur rectiligne dans la partie de branche de cadre correspondante (8), réciproquement guidés et/ou commandés de manière forcée.
  7. Procédé selon une des revendications 1 à 6, caractérisé en ce que le mouvement d'introduction du connecteur rectiligne (10) dans la partie de branche de cadre (8) est composé d'un mouvement de pivotement et d'un mouvement de poussée rectiligne.
  8. Procédé selon la revendication 7, caractérisé en ce que le mouvement de pivotement de la partie de branche de cadre contenant le connecteur rectiligne (10) et le mouvement de poussée rectiligne sont prévus successivement, ou en superposition dans la dernière partie du mouvement de pivotement.
  9. Procédé selon une des revendications 1 à 8, caractérisé en ce que, après avoir emboíté l'une dans l'autre les deux parties (7, 8) de branche de cadre, le pliage de la deuxième partie (8) de branche de cadre est poursuivi au-delà d'un angle droit jusqu'à un angle légèrement inférieur à 90°, et la première partie (7) de branche de cadre est elle aussi légèrement repliée en excès, vers l'intérieur du cadre, par rapport à la branche de cadre (4) qui en est voisine, afin de tenir compte des forces de rappel élastique des parties (7, 8) de branche de cadre de telle sorte qu'à la suite de l'ouverture des dispositifs de maintien, elles s'étendent à angle droit par rapport aux branches de cadre voisines respectives (4) qui se raccordent à elles.
  10. Dispositif (1) pour la mise en oeuvre du procédé selon une des revendications précédentes, avec un dispositif de maintien pour un cadre replié sur plusieurs coins (3) et encore ouvert sur une branche de cadre (5), et avec un dispositif de pliage (11) pour plier une dernière partie (8) de branche de cadre et réaliser le dernier pliage, le dispositif de pliage (11) présentant une branche de pliage (12) par laquelle la partie (8) de branche de cadre à plier peut être pliée par rapport à un contre-appui fixe (9) autour de ce dernier, caractérisé en ce que des moyens sont prévus pour le repliage ou pivotement élastique de la région du cadre, déjà pliée, qui est opposée à la partie (8) de branche de cadre à plier, et des moyens sont en outre prévus, par lesquels un connecteur rectiligne (10), emboíté dans une (7) des parties de branche de cadre, peut être introduit et enfilé par sa projection (10a) dans l'autre partie (8) de branche de cadre lorsque la partie (8) de branche de cadre à plier est suffisamment repliée pour que l'extrémité libre (10b) de la projection (10a) du connecteur rectiligne (10) et l'extrémité libre de la partie (8) de branche de cadre recevant la projection (10a) soient proches l'une de l'autre et en vis-à-vis, et en ce que des moyens sont prévus, par lesquels le pliage final de la deuxième partie (8) de branche de cadre et l'assemblage par emboítement avec le connecteur rectiligne peuvent être simultanément effectués.
  11. Dispositif selon la revendication 10, caractérisé en ce que le dispositif pour faire pivoter la partie repliée (7) de branche de cadre et le dispositif de pliage (11) sont réciproquement commandés de manière forcée de telle sorte que la projection (10a) du connecteur rectiligne (10) peut être enfilée en même temps que la dernière partie du mouvement de pliage, et que le premier mouvement d'emboítement peut être effectué lorsque les deux parties (7, 8) de branche de cadre forment entre elles un angle obtus.
  12. Dispositif selon la revendication 10 ou 11, caractérisé en ce que la branche de pliage pivotante (12) possède, pour le pliage de la deuxième partie (8) de branche de cadre. une rallonge ou prolongement (14) dépassant, en position d'utilisation, de l'extrémité libre de la deuxième partie (8) de branche de cadre, en ce qu'une pince (25), pouvant être ouverte, est prévue pour saisir la première partie (7) de branche de cadre, notamment contenant le connecteur rectiligne (10), pince qui est fixée sur un élément pivotant (16), l'élément pivotant (16) présentant une face de commande (17) engageant par en dessous, côté cadre, l'extrémité du prolongement (14) de la branche de pliage (12), et l'extrémité libre du prolongement (14) de la branche de pliage (12) sollicitant cette face de commande (17) au début de l'introduction de la projection (10a) du connecteur rectiligne (10), et en ce qu'un pivotement supplémentaire de la branche de pliage (12) et de son prolongement (14) est couplé de manière forcée au mouvement de pivotement de l'élément pivotant (16), un mouvement de pliage trop rapide par rapport au mouvement de pivotement de l'élément pivotant (16) étant empêché par les éléments qui s'engagent mutuellement par au-dessus ou en dessous.
  13. Dispositif selon une des revendications 10 à 12, caractérisé en ce que l'élément pivotant possède un guide courbe (19), par rapport auquel il peut coulisser.
  14. Dispositif selon une des revendications 10 à 13, caractérisé en ce qu'une glissière de guidage est prévue comme guide courbe (19), sur laquelle l'élément pivotant (16) agit des deux côtés par des éléments de guidage complémentaires, notamment des galets de guidage (20) ou éléments de guidage analogues.
  15. Dispositif selon une des revendications 10 à 14, caractérisé en ce que le guide (19) possède des butées finales (21) pour l'élément pivotant (16), de sorte que le mouvement d'ouverture maximale et le mouvement de retour pour la première partie (7) de branche de cadre sont limités.
  16. Dispositif selon une des revendications 10 à 15, caractérisé en ce que l'élément pivotant (16) possède un guide rectiligne (22) et un dispositif d'avancement (23) pour la pince (25) saisissant la partie (7) de branche de cadre, le guide (22) étant orienté environ parallèlement à une tangente au guide courbe (19).
  17. Dispositif selon une des revendications 10 à 16, caractérisé en ce que, afin de bloquer par serrage le cadre (2) pendant sa fermeture, il est prévu un dispositif de serrage (26) agissant sur la branche de cadre (4) par rapport à laquelle la deuxième partie (8) de branche de cadre peut être repliée.
  18. Dispositif selon une des revendications 10 à 17, caractérisé en ce que l'élément pivotant (16) peut, avec son guide (19), être déplacé ou pivoté transversalement aux parties (7, 8) de branche de cadre à assembler ou assemblées et transversalement à l'allure du guide (19), et présente un entraínement (28) pour ce déplacement ou pivotement, de sorte que le point d'assemblage (6) des deux parties (7, 8) de branche de cadre mutuellement assemblées peut être déplacé, transversalement à l'allure de ces parties, vers l'intérieur du cadre ou vers le milieu du cadre.
  19. Dispositif selon une des revendications 10 à 18, caractérisé en ce qu'un vérin (29) agit sur le guide (19), notamment sur la voie de guidage, directement ou indirectement, notamment par l'intermédiaire d'un prolongement ou analogue, et peut être entraíné en synchronisme avec la branche de pliage (12) lorsque les deux parties de branche de cadre sont emboítées l'une dans l'autre jusqu'en butée réciproque. de sorte que les deux parties de branche de cadre peuvent subir un pliage excessif, au-delà de leur angle définitif, par rapport aux branches de cadre qui en sont voisines.
  20. Dispositif selon une des revendications 10 à 19, caractérisé en ce que le cadre (2) à fermer est maintenu par un unique dispositif de serrage (26) sur la branche de cadre (4) qui est directement voisine du dernier pliage à réaliser, et en ce que ce dispositif de serrage (26) est, de préférence, voisin à faible distance de ce dernier pliage.
  21. Dispositif selon une des revendications 10 à 20, caractérisé en ce que la distance entre le dernier pliage et le point d'attaque du dispositif de serrage (26) pour le cadre est inférieure à la moitié de la longueur de la branche de cadre (4).
  22. Dispositif selon une des revendications 10 à 21, caractérisé en ce que le prolongement (14) de la branche de pliage (12) présente, à son extrémité libre, un galet (32) par lequel il sollicite la face de commande (17) de l'élément pivotant (16).
  23. Dispositif selon une des revendications 10 à 22, caractérisé en ce que le centre de pivotement imaginaire de l'élément pivotant (16) est disposé sur le côté opposé au côté extérieur de cadre de la première partie (7) de branche de cadre et, latéralement à un plan passant perpendiculairement par le point d'assemblage (6) du cadre (2), sur le côté opposé à la deuxième partie (8) de branche de cadre.
  24. Dispositif selon une des revendications 10 à 23, caractérisé en ce que la courbure du guide (19) pour l'élément pivotant (16) est un arc de cercle, une tangente à l'extrémité de cette voie de guidage étant disposée, au sens d'un assemblage par emboítement des parties de branche de cadre, environ parallèlement à la droite sur laquelle doit s'étendre la branche de cadre fermée (5).
  25. Dispositif selon une des revendications 10 à 24, caractérisé en ce que la course de coulissement de la pince (25), qui peut coulisser par rapport à l'élément pivotant (16), peut être modifiée par des butées (33) notamment réglables, notamment peut être réglée pour des connecteurs rectilignes (10) de différentes longueurs.
EP95100596A 1994-01-29 1995-01-18 Procédé et dispositif pour la fabrication d'un cadre espaceur pour vitrages isolants Expired - Lifetime EP0665357B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4402726 1994-01-29
DE4402726A DE4402726A1 (de) 1994-01-29 1994-01-29 Verfahren und Vorrichtung zum Herstellen eines Abstandhalter-Rahmens für Isolierglasscheiben

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EP0665357A1 EP0665357A1 (fr) 1995-08-02
EP0665357B1 true EP0665357B1 (fr) 1998-06-17

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Publication number Priority date Publication date Assignee Title
CH691795A5 (de) * 1996-09-02 2001-10-31 Rudolf Tschopp Verfahren zum Biegen eines Rohres, Vorrichtung zur Durchführung des Verfahrens sowie ein nach dem Verfahren hergestelltes Element.
DE102005011362B3 (de) 2005-03-04 2006-10-26 Karl Lenhardt Verfahren zum Verfügbarmachen eines länglichen Formteiles und zum Einfügen des Formteiles in einen Hohlprofilstab, aus welchem ein Abstandhalter für Isolierglasscheiben gebildet wird
WO2020070245A1 (fr) 2018-10-04 2020-04-09 Lisec Austria Gmbh Procédé et dispositif de fabrication d'un cadre d'écartement pour verre isolant

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Publication number Priority date Publication date Assignee Title
EP0249946B2 (fr) * 1986-06-19 1997-01-29 Karl Lenhardt Procédé et dispositif pour la fabrication d'un cadre d'espacement pour vitres isolantes
DE3740922A1 (de) * 1987-12-03 1989-06-22 Bayer Isolierglasfab Kg Verfahren und vorrichtung zur herstellung eines abstandhalter-rahmens
DE3942808A1 (de) * 1989-12-23 1991-06-27 Bayer Isolierglasfab Kg Verfahren und vorrichtung zum herstellen eines abstandhalter-rahmens
DE4223730C2 (de) * 1992-07-18 1996-02-29 Bayer Isolierglasfab Kg Verfahren und Vorrichtung zum Füllen und Herstellen eines Abstandhalter-Rahmens für Isolierglasscheiben

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DE59502547D1 (de) 1998-07-23
DE4402726A1 (de) 1995-08-10
EP0665357A1 (fr) 1995-08-02

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