DE19839735B4 - Device for bending a spacer-holding inner frame for an insulating glass pane - Google Patents

Abstract

contraption (1) for bending a spacer inner frame for an insulating glass panel a continuous hollow profile (2) with a pivotable bending cheek (3), with the inside of the bending area and the bend defining abutment (4), with a hold-down (6) for the hollow profile (2) especially in the bending area, with a separating device or Saw, with which is the fully or partially curved frame of each supplied Hollow section (2) is separable, and in particular with a horizontal, oblique and / or in her slant adjustable support plate (8) or abutment wall as support of the wholly or partially bent frame, characterized in that the separating device or saw (7) is a manually operable or manually operated tool and that at the distance, in which the junction of the two frame ends of a Frame corner is removed, a guide (9) for the hand-operated Tool or the saw blade (7a) of the hand saw (7) is arranged, whereby the separating cut perpendicular to the Hollow profile (2) out is.

Description

The The invention relates to a device for bending a spacer Inner frame for one Insulating glass pane made of a continuous hollow profile with a pivoting bending beam, with a the inside of the bending area and the bend-defining abutment with a hold-down for the hollow profile especially in the bending area, with a separator or saw, with which is the fully or partially curved frame of each supplied Hollow profile is separable, and in particular with a horizontal oblique and / or in her slant adjustable support plate or abutment wall as support of the wholly or partially curved frame.

Such a device is designed as a machine for bending a distance-maintaining inner frame DE 32 21 986 C2 or off AT 403 350 B already known. The separating device formed as a motor-driven saw is seen in the feed and feed direction of the hollow profile installed behind the bending point and the bending device in the distance in which the junction of the two frame ends is removed from a frame corner. This ensures that the generally square or rectangular frame also receives the required dimension on the frame legs, at which the connection point is located to close the hollow profile.

Further are in this known device, the other movable parts, in particular the bending cheek provided with a drive, the one corresponding having programmable control. Thus, this known machine very good for an automated operation and for a correspondingly high number of Interior or spacer frame suitable. So she is less suitable if in a small production operation only relatively small quantities to be made of such distance-retaining inner frame.

Of the The invention is therefore based on the object, a device of to create the aforementioned type, with which to simple and especially inexpensive way spacer inner frame for insulating glass panes can be bent, So the advantages of bent from continuous hollow sections inner frame across from obtained from several items assembled inner frame remain and still the device constructive and of the operation her simple and thus the production are inexpensive.

to solution this object is the aforementioned device characterized that the Separator or saw is a hand operated or hand operated tool and that in the Distance in which the junction of the two frame ends from a frame corner, a guide for the hand-operated tool or the saw blade the hand saw, is arranged, whereby the separating cut perpendicular to the hollow profile guided is.

It So is on a motor-driven and accordingly to control Disconnecting device and instead a hand-operated tool, especially a hand saw, provided as a separator and combined with a guide, by which a correspondingly exact separation cut ensured becomes. Thus, a very inexpensive device, because a specially adjusted and fixed, motor-driven and controlled Saved separator and by a simple hand saw and a also easy attachable guide replaced for that becomes. Through the leadership but still the precision of Secured separating cut. It can by the orientation the leadership be achieved that the Interface on the hollow profile at a right angle to this hollow section lying plane forms, so that the both end faces of the ends of the frame legs to be joined get an exact mutual investment. So the user can smaller quantities Such distance-retaining inner frame with a cheap device still finished with the required accuracy.

The guide for the sawblade the handsaw can in vertical or downward direction oriented transversely to the hollow profile and its feed direction and after be open at the bottom. As a rule, the inner frame is in fact during his Production about horizontally or obliquely, so that when separating at least one down directed slope or even vertical cut is required. Due to the openness of the leadership at least down is enabled that at Sawing accruing Chips and eventually at the same time trickling out of the already filled with desiccant hollow profile Desiccant can be removed by gravity, without that the Device or to be manufactured inner frame are dirty. This can be such chips and desiccant surpluses, of course, below the leadership by means of a container easy to catch.

refinements the leadership for the handsaw on the one hand a precise one guide during the saw cut on the other hand, but also facilitate the insertion of the saw in the guide, are the subject the claims 3 to 8.

According to claim 3, at least two pairs of bolts are provided, each one Pair of such bolts has a distance between them, the insertion and Move the saw blade without palpable Deflections possible.

claim 4 relates to the configuration of the bolts or pins with such Cross section that is the slot in the direction of movement of the saw blade each up to his narrowest point rejuvenated, regardless of whether the saw is led or not this means in every direction is a precise one guide possible without risk of tilting of the saw blade in his leadership. simultaneously is for that taken care that the guide is little susceptible to wear, in particular if the bolts are hardened steel consist.

claim 5 contains Features and measures to adapt the leadership to a possible wear or on differently thick saw blades through the possibility the change the slot width or the distance of each to a pair of bolts belonging Bolt.

claim 6 allows insertion and removing a saw blade a hacksaw in the lead, without that the across from the saw blade secure headband with the leadership can collide.

claim 7 indicates how the bending cheek in relation to the guide and the leadership forming bolt can be arranged and designed to be even one enough size Length too have and make a correspondingly large lever arm to a hollow profile smooth to be able to bend although in the area of the bending cheek also the separation cut done should.

claim 8 gives action on, like the cutting edge of the saw or the saw teeth in front can be protected against premature wear, the especially when the saw movement after cutting can occur of the hollow section is still somewhat continued.

For an effective and cheap bending, it is useful if that in the bending area located abutment is interrupted in the vertical direction and out opposite the width of the hollow section, so its dimension between the as an attachment for the Single panes of insulating glass serving side bars, respectively shortened, there are aligned and mutually aligned projections, one of which is the area of a resting side bar and their others in the area of the further side bar which is gripped by a hold-down device each projecting. Thus, not the entire inside of the bending area of the hollow profile acted upon by the abutment, but only the edge areas from which the side bars depart. Have attempts shown that nevertheless over the entire width of the hollow section an exact and tight inner bend results.

there it is advantageous if the projections forming the abutment thin pins are, respectively, at least on the edge of the inside of the frame forming crosspiece lie, of which the laying on of the Go off individual slices of the insulating glass serving side bars. In that the Pins thin are, the bending center is practically in agreement with the inside of the frame or the crossbar of the Hohlprofiles or this is anyway so close that he without or almost without train or Compression load can be bent. This results in a precise and accurate inside bend, which is beneficial because this also works later the installation of the insulating glass pane is visible in a frame.

The Abutment projections or pins can projecting on rotatable or pivotable plates or surfaces whose axis of rotation coincides with the geometric center axis of the abutment projections, and these rotatable plates can with the bending cheek in the sense of a synchronous Mitdrehbewegung when Bending coupled or rigidly connected. This will achieve that with the pivoting movement of the bending beam and the support and the hold-down in the area of abutment projections be synchronously rotated. This results in a very exact Bending, in which virtually no material flow occurs in the profile direction. The bending becomes exactly the same on the inside and the length is exactly the same the respective frame legs from bending to bending, so that no additional activities for measuring and adjusting are required. Reasonably priced the entire bending device can be designed and used.

The Bending cheek can for a manual operation at a distance to its pivotal mounting a handle or a hand attack point exhibit. Thus, the actual bending process with muscle power take place, so does not require a motor drive with appropriate Control. The user then has it in his own hands, which angle He bends, how fast he performs the bending process and how exactly he the respective For example, an angle to a template or a stop or like that. Also any other angles deviating from a right angle can easily be bent, for example, if a custom order or a model frame is needed become.

Another useful embodiment The invention may consist in that the hold-down and the associated abutment projection or abutment pin is adjustable and fixable in its extension direction relative to the other abutment projection for adaptation to different widths sized hollow profiles. It is therefore possible to change the two abutment projections together with the surfaces holding them in terms of their distance, in order to take into account also differently sized hollow profiles in a simple manner.

For example the hold-down can be attached to at least one set screw be, which at its front side as hold-down a rotatable plate with carries the abutment pin and by twisting due to its thread in the axial direction Delivered to the other abutment projection or movable away from him is. Thus, the user can easily change the distance of the abutment projections Carry out adaptation to differently sized hollow sections and so that the device suitably versatile.

there can the operation be simplified by the the hold-down or forming screw relative to the it survives receiving counter thread and in the supernatant Area a knurling, having a handle, so that for their axial adjustment by twisting not even a tool is needed.

at the device according to the invention however, it is a modified solution for the Problem provided that at Bending around an abutment, which at an internal crossbar is applied, the outboard Cross bar stretched or extended would have to, and this solution and at the same time embodiment of the device according to the invention is that on the outside the bending region of the device, a second separation device is provided with the on the outside of the bending area extending transverse web of the hollow profile transverse to the feed direction and transverse to the longitudinal extent the hollow section with a predetermined tear point providable or in the Anritzbar dimensions or that is incontrovertible on the outside extending transverse web when bending parallel to the abutment separable is or tears up. So it is the incised or incised area of the hollow section, namely the Outside extending transverse bridge, which are actually extended when bending compared to the neutral phase would have to, cut will, so that it not to tensions or distortions in this area and at the Side bars, in particular on the sealing compound to be occupied Areas of the side bars can come. The open outside or the Interruption of the outside in the bending area extending crosspiece can in a simple way by a hand applied and pressed seal For example, made of durable elastic Resistant plastic such as butyl rubber are closed again.

Cheap is it when the outside of the Bending area or the ruptured or torn area of the outer cross bar the hollow profile is openly accessible to the device. It can then be the mentioned Sealing the outside the bending area immediately after the bending process or under some circumstances even take place simultaneously with the bending process, so that a Ingress of moisture or falling out of larger quantities desiccant is avoided from the outset. It still remains the internal cross section closed and uninterrupted and relieved thus the sealing of the corner region of an insulating glass pane across from a solution in which frame legs are plugged together in the corner and over their entire cross-section are interrupted.

The second separator and separation point can be a guide for a hand-operated or hand-operated Tool or for a hand saw that lead to the lead the separator or saw at right angles to the feed direction the hollow profile is used. It can be particularly useful and inexpensive Device advantageously the same hand-operated or hand-operated separator or the same parting tool, in particular the same hand saw also for scribing or cutting the outside of the bending area be provided, on the other hand, for separating the curved frame supplied by the Hollow profile is used. Thus, both for separating the curved frame from the hollow profile as well as for each scoring or cutting the outsides of the usually four bends and corners of the distance-retaining inner frame only a single such tool or a single saw required.

The already mentioned guide for guiding the Tool or saw on the outside of the Bending area can turn a guide slot or an out at least two spaced bolts formed guide slot be like her too the separating cut for separating the bent frame from the actual Hollow profile is provided. The relevant features and measures are the subject of claim 20.

In this case, the guide of the second separation point can be arranged relative to the abutment and the bending cheek at the point at which after bending the vertex of the outside of the bend is approximately. It is therefore expedient if the scratching or the cut on the outside of the hollow profile or its outer crosspiece takes place at the point that forms the apex of the bend after bending, so that the tearing movement and the broadening of the scribe or slot takes place approximately equally to both sides and a symmetrical opening is formed, which thus causes little or no distortions in their environment and can be sealed well.

characteristics and measures for storing the handsaw in the form of a quiver and its assignment to at least one of the guides for the hand saw in their operation Subject of the claims 22 and 23. The one mentioned therein Quiver allowed it to keep a corresponding hand saw at hand at the device, so that she too is not lost when not in use and is available at all times.

All in all arises especially when combining one or more of the above features and measures a device of generic type, with the inexpensively largely handmade hollow sections can be bent to the spacer frame without it consuming measuring, Adjustment and drive means required, so that especially smaller quantities rational and inexpensive, but also can be produced exactly. there The invention makes use of the idea, which also includes bending machines for large quantities already known, namely to guide the hollow profile itself exactly and hold down in the bending area, but for the exact location of the separating cut only a pre-fixed guide for a hand-operated tool, for example, a hand saw is provided so that the Always cut at the same distance from its neighbor Bend comes to rest. This automatically leads to that then too the ends of the bent and cut to be joined to the frame Hollow profiles fit each other exactly, so with an average skill a corresponding distance-retaining inner frame fast, inexpensive and precise can be bent. Especially for the good dimensional stability and accuracy are in the case of the hand-operated device by accurate guides and by the possibility the outside overstretched during bending by scratching or cutting to relax, the requirements created that no one elaborate measuring devices and adjustments required. Nevertheless, this device can not just a common one right-angled inner frame, but also a model frame bent be provided at which angles deviating from right angles are. Thus, the device according to the invention also in such Operate be beneficial, which is actually high volumes manufacture and for that have automated and mechanized bending machines, because again and again the need for special shapes and special sizes of such inner frame consists.

A particularly expedient embodiment of the invention, in particular with regard to the abutment can be in both the device described above and in devices or machines for bending such hollow profiles for example according to EP 0 121 873 B1 or EP 0 318 748 B2 or similar bending devices or machines or also in a bending device or machine according to EP 0 582 064 A1 be used with non-replaceable, but nevertheless adaptable to different widths hollow sections or adapted bending mandrel.

The initially mentioned device or the device described above, in the area of the abutment on the one hand as hold-down a Hold-down plate and on the other hand as a support for the hollow profile has a bearing plate may be characterized, the hold-down plate and / or the bearing plate are interchangeable and optionally about just up to the abutment pin reaching plates or plates with at least one average projecting paragraph in the area of Abutment pin are provided, the height of the paragraph about a lateral projection on the side bar or the web to be bent Hollow profiles or the supernatant a previously attached seal made of durably elastic Material, for example, a butyl seal or cord corresponds.

It is possible, in the area of the abutment an adaptation of the device or machine different hollow profiles thereby causing the hold-down plate and / or the bearing plate, whereby the side webs of the hollow profile while of bending, exchanged or replaced can be be it together with the or the abutment pins or even without the abutment pin. Are the side bars of the hollow section over their entire height even and smooth and without sealant, can the hold-down plate and be the bearing plate. On the other hand, should a hollow profile be bent are prefabricated on the side bars of a sealing cord are present, in exchange for the flat plates with such used a protruding paragraph, the height of this Paragraph the supernatant considering the seal, so that Hollow profile next to the seal on the side bars of the raised paragraph detected will, while the receding, at a greater distance to the abutment pin area located receives the seal and the necessary space for the seal creates, because, opposite the paragraph each recessed outer areas the plates a greater distance as the heels have each other.

Embodiments of the device with respect The abutment and there replaceable provided hold-down plate and also interchangeable bearing plate are the subject of claims 29 to 36. They relate to measures for the simplest possible construction and fast interchangeability while still sufficiently secure mounting of the respective plates.

In claim 36, a measure is indicated, by which also the seal 28 is guided by the plates in particular during the bending process and held with little force, so that it follows the change in direction caused by the bend.

below is an embodiment the invention described in more detail with reference to the drawing. It shows in partly schematized representation:

1 a side view of the device according to the invention with a view of the feed and the abutment and the side of a bending cheek, which externally applied to the frame leg to be bent during the bending process, wherein a support plate for the profile and the frame to be bent partially and in section indicated in the region of a section is, in which the device is arranged

2 one of the 1 corresponding side view with inserted or supplied hollow profile before the actual bending process,

3 a plan view of the device according to 1 which is arranged in a section of a support plate, wherein a hollow profile is inserted and so far moved past an abutment, that a first part of a frame leg can be bent,

4 one of the 3 corresponding plan view during the bending process, that is, after a Teilverschwenkung the bending beam with the voltage applied to her and acted upon by her part or leg of the hollow section,

5 one of the 3 and 4 corresponding representation after the pivoting of the bending beam and acted upon by it frame leg by 90 °, which is indicated by dash-dotted lines that a more extensive bending is possible,

6 a the 3 to 5 corresponding representation after the back swinging of the bending beam and before the displacement of the hollow profile and the first corner located thereon by the length of a second frame leg,

7 a cross section through the device in the region of the separation point at which the finished curved frame is separated from the located in the feed area and later again in the same way to be machined hollow profile with a view of a trained as a hand saw separator,

8th a section through the abutment and bending area with a view of the same handsaw while scribing or cutting the outer crosspiece of the hollow section at a location that forms the vertex of the bend after bending and rupturable by the bending process and then closed by hand with sealant, wherein at the same time a storage quiver is indicated both in this area and in the separation area,

9 on an enlarged scale, a section through the abutment and bending area serving as hold-down plate and serving as a support for the hollow profile bearing plate, both plates each have an abutment pin and concentric to this one opposite the other plate area raised paragraph to take into account on both sides of the Side bars of the hollow profile provided provided seals, and

10 one of the 9 corresponding representation, wherein the hold-down plate and the bearing plate are replaced with the paragraph each by a flat plate in which only centrally projecting each abutment pin, which is also indicated that these flat plates can project beyond the flat and smooth side webs of the detected hollow profile.

One in total with 1 designated device is used to bend a spacer inner frame for an insulating glass pane of a continuous hollow profile 2 and can be operated essentially by hand, so does not require any drives or controls and can also be regarded as an auxiliary device for bending such inner frame.

Essential for the device 1 is a pivotable about the bending center bending beam 3 from a stretched position according to the 1 to 3 in the direction of the curved arrow Pf1 in 4 can be pivoted and thereby acted upon by her part or leg 2a of the hollow section 2 takes along and turns accordingly, as it is based on the 3 to 5 becomes clear.

It is important for the device 1 furthermore, especially in 1 recognizable, to be described in more detail below, the inside of the bend area and bending abutment 4 which is interrupted in the embodiment and of two mutually aligned abutment pins 5 and further to be explained parts. It belongs to the device and also to the abutment 4 or its upper abutment pin 5 a hold-down 6 for the hollow profile, which is effective at least in the bending area.

Further, for the device 1 in the embodiment as a hand saw 7 trained separating device, with which the fully or partially curved frame of the respectively supplied hollow profile 2 can be separated, for example, if all four bends are performed in a rectangular quadrangular frame. It then results after the fourth bend again a piece of a frame leg, with the first leg 2a be added to a frame side and with this example, by a straight connector and tightly connected.

To the device 1 further includes a horizontally shown in the embodiment, but possibly also oblique or adjustable in its slope support plate 8th , which serves as a support of the wholly or partially bent frame during the individual bending steps and the intermediate displacement steps.

As already mentioned, the separating device is a manually operated tool, namely a hand saw 7 , In the distance in which the junction of the two frame ends is removed from a frame corner, which is in 6 still within the device 1 recognizes, is also one in total with 9 designated guide for the saw blade 7a the hand saw 7 arranged, whereby the separating cut perpendicular to the hollow profile 2 to be led.

In 7 is the guide of the hand saw 7 and her saw blade 7a in the guide to be described in more detail 9 shown. It should be mentioned that while the bending cheek 3 is arranged in unverschwenkter or zurückverschwenkter from a bending position back in the starting position.

According to 1 . 2 . 7 and 8th is the lead 9 for the saw blade 7a the hand saw 7 in the vertical or downward direction transverse to the hollow profile 2 and to which by the arrow Pf2 in 2 and 3 oriented supply direction oriented and open at the bottom, so that sawdust and possibly emerging from the separation point desiccant discharged by gravity and out of the range of the bending device 1 be removed, so easily disposed of or collected with a container.

In common consideration of the 1 . 3 and 7 and in the same way also the 2 . 4 and 7 it becomes apparent that the leadership 9 for the hand saw 7 in the embodiment by two pairs of bolts 10 or pins is formed, wherein the clear distance between two such a pair forming bolts 10 about the thickness of the saw blade 7a corresponds or exceeds this thickness by a small amount of play. The two pairs of two bolts 10 arranged at a distance from each other and the feed of the hollow section extends between these two pairs of bolts 10 , but these are arranged in the feed direction behind the bending point, namely where the separating cut is to take place after performing the four bends of a rectangular frame.

The the lead 9 forming bolts 10 or the like pins have on the sides facing each other both in the direction from top to bottom and from bottom to top, so to speak inlet slopes, so that the saw blade 7a can not be tilted and jammed during the reciprocating motion of the sawing process. This is realized by the bolts 10 on the sides facing each other have an arcuate or circular arc-shaped cross-section, wherein the simplicity of the bolts 10 overall have a circular cross-section. Thus, despite the good and precise, virtually play-free guidance only a very small area of these guide pins 10 from the saw blade 7 is touched during his float. In order to keep the wear low, the bolts are expediently made of metal, preferably of hardened steel.

In a manner not shown, the distance between the bolt 10 be adjustable to either compensate for a wear in which the bolts are approaching each other or initially twisted and then fixed again, or it can be adapted to different thicknesses of saw blades 7a also an opposite adjustment may be possible.

According to 4 or 7 or 8th are they the guide 9 for the saw blade 7a forming bolts 10 held on one side, fastened and clamped and the slot or distance between them runs at the clamping point facing away from the free end of these bolts 10 free from, so is open there, so that the saw from the free ends or the front sides 10a the bolt 10 from between these can be introduced. It can just as easily be removed after sawing. The length of the bolts 10 is big enough to give good leadership right from the start, especially with reference to 7 It is recognizable where the saw blade 7a even before the first contact with the hollow profile to be separated 2 represented and yet of the under Um stand also different long bolts 10 laterally surmounted by a multiple of its width.

Based on 1 and 2 becomes apparent that the bending cheek 3 in initial position, in which a not yet bent hollow profile 2 stretched against it, the leadership between the two 9 forming pairs of bolts and thereby an upper, possibly also a lower section 11 has, which receive the bolt pairs in this position. Thus, the bending cheek 3 about the leadership 9 in the direction of insertion survive and still relative to the leadership 9 be pivoted in the direction of the arrow Pf1, which is especially evident in 4 is recognizable. The bending cheek 3 So can in the bending process relative to the leadership 9 and to the bolts 10 be swung out of the space between the two pairs of bolts. Thus, the length of the bending cheek 3 not by the predetermined placement of the leadership 9 limited. Optionally, it could be the distance of the bolt pairs to the width of the hollow section to be machined 2 be tuned so that during bending and the curved leg 2a of the hollow section 2 at least in the first part of its pivoting, in which the bend is applied, by the bolts 10 to be led.

So when separating the hollow section 2 with the help of the hand saw 7 the bending cheek 3 is not accidentally violated, on which the hollow profile 2 is in the area of leadership 9 at the bending edge 3 the leadership 9 by one or expediently two spaced rollers 12 made of metal or hardened steel in particular, whose axes of rotation 13 transverse to the separation or sawing movement and thus in the feed direction of the hollow section 2 run. Is this hollow profile 2 sawn through, the saw blade hits 7a with his saw teeth on these roles 12 and thus can not use the bending cheek 3 to damage. At the same time, these rollers and their rotatability damage the saw blade 7a largely prevented.

In the 1 and 2 is indicated that the abutment located in the bending area 4 , as already mentioned above, is interrupted in the vertical direction and off with respect to the width of the hollow profile 2 each shortened, aligned and mutually aligned projections or pins 5 one of which is in the area of an overlying side bar and the other in the area of the hold-down 6 detected further side bar each projecting. This arrangement is in 1 and 2 on the one hand, but also in 8th recognizable. It also becomes clear that the abutment 4 forming protrusions 5 thin pins are, in each case abut at least on the edge of the inner side of the frame forming transverse web, from which serving for placing the individual panes of the insulating glass side webs of this hollow section 2 depart. Thus, from the projections 5 of the abutment 4 especially that area of the hollow profile detected, which causes the greater resistance due to the outgoing side bars when bending.

The abutment projections 5 or -stifte standing on rotating or pivotable plates or surfaces whose axis of rotation with the geometric center axis of the abutment projections 5 matches. Both in the support area and on the hold-down 6 Thus, rotatable plates are provided which are coupled to the bending cheek 3 in the sense of a synchronous Mitdrehbewegung during the bending process or rigidly connected thereto, so that therefore during the pivoting of the bending cheek 3 These plates or plates are mitverdreht, which is the bending and bending especially of the side webs of the hollow section 2 supported.

The bending cheek 3 has in the embodiment for a manual operation at a distance to its located in the bending area pivotal mounting a handle 14 on, a pivoting of the bending cheek 3 without motor drive allowed. The user can thus also determine the bending speed itself.

The hold down 6 and in particular the associated abutment projection 5 is in its extension direction relative to the other abutment projection 5 adjustable and fixable for adaptation to hollow sections of different widths. This is the hold-down 6 on a set screw 15 attached to the front as a hold-down 6 the rotatable plate with the abutment pin 5 carries and by twisting due to their thread in the axial direction to the other abutment projection 5 can be delivered or moved away from it. You can see in 1 . 2 and 8th that the downholder 6 carrying screw 15 opposite to the counter thread for this screw 15 having part 16 protrudes and in the protruding area a knurling or a handle 15a has, so that a simple and rapid change in the distance of the blank holder 6 from the lower support for the hollow profile 2 or the distance between the two abutment pins 5 for adaptation to hollow sections of different widths 2 is possible.

Based on 3 to 5 and 8th becomes another feature of the device 1 recognizable, which is that on the outside of the bending region of the device 1 a second separation device in turn in the form of a hand saw 7 is provided, with the extending on the outside of the bending region transverse web of the hollow profile 2 transverse to the feed direction and to the longitudinal extent of the hollow profile 2 provided with a predetermined tear and can be scratched or trimmed to an extent that this lying on the outside transverse web of the hollow section 2 when bending parallel to the orientation of the abutment 4 is split or tears open. Thus it is prevented that on the outside of the bend in the transverse web located there is too great a tension or on this outside corresponding additional tools for rolling and lengths or for pressing the crossbar closer to the neutral phase zoom are required. Instead, in the sense of the simplest possible solution of this area, which is exposed during the bending process of the greatest tensile stress, is simply relieved and relieved by a transverse slot, which also reduces the required bending forces.

In this case, the outside of the region of the outer transverse web of the hollow profile 2 at the device 1 open, so that the user already during bending or tearing or at least after completion of the bending process according to 5 Hand-sealing a seal on this open outside 24 , In particular, can apply a sealant from a permanently elastic-elastic plastic such as butyl rubber. Thus, this opened by the bending process and the previously performed scratching the outside of the bend immediately steam-tight again. Since at the same time the inner crosspiece and the side bars remain intact, nevertheless results in a spacer frame with the advantages of a continuous through to a joint inside, which allows a better seal against assembled from individual frame legs spacer frame.

This second separating device and separating position also has a guide 9 for a hand-operated or hand-operated tool, in the embodiment a handsaw 7 on, for guiding this separator perpendicular to the feed direction of the hollow section 2 serves. As in the embodiment, the same hand-operated or hand-operated separating device, namely the saw 7 also for scoring or cutting the outside of the bending region of the hollow profile 2 is provided for separating the bidding frame from the supplied hollow profile 2 This guide and the handsaw have the same reference numbers.

It can be seen in the plan views according to 3 to 6 and doing very well in 4 as in 8th in that to guide the saw 7 on the outside of the bend in turn a guide slot is provided, which is formed by two spaced bolt pairs, wherein the bolts 10 are in turn held on one side and between them have a on the side facing away from the holder guide slot, in the region of the holder with respect to the insertion depth of the tool or the saw 7 are limited by one or more stops such that only the outer web of the hollow section 2 through the saw 7 scratchable or separable, the side bars and in particular the innenliegen de bridge but remain uninterrupted. This guide 9 the second separation point is relative to the abutment 4 and the bending cheek 3 arranged at the point where after bending the vertex of the outside of the bend is about. This is achieved in that this second guide with the bending cheek 3 is swinging, which is especially good in 4 and also in 5 is recognizable.

Under at least one of the guides 9 , In the embodiment under both guides 9 is a recording in the form of a quiver 17 for storing the handsaw 7 provided in a handy position, wherein the receptacle or the quiver 17 a receiving slot 18 for picking up the saw blade 7a and one the saw blade 7a holding bracket or the like and the insertion depth is such that the handle 7b the hand saw 7 completely or partially survives, so that the saw is always ready to hand.

Advantageously, is the slot-shaped quiver 17 in continuation of the guide slot between the bolts 10 the leadership 9 arranged and holds the handsaw 7 in a position corresponding approximately to its cutting position. Thus, the handsaw 7 , as in 7 and 8th visible in their operation also partially in this slot 18 the quiver 17 engage and thereby additionally guided laterally. After use, the user can use the handsaw 7 Just lower a bit further, so that they are in the respective quiver 17 rests. He needs the handsaw 7 for scoring the outer bar in a rectangular frame four times, so that they first in the outer quiver 17 can remain in the area of the bending point. Thus, it also does not hinder the bending process, which could happen if it were plugged into the other quiver in the pivoting area of the bending beam 3 lies below this. If necessary, could also be dispensed with this quiver.

It should be mentioned that the leadership 9 shows two different lengths of bolt pairs for the separating cut behind the bending area, because the separating cut expediently with a slightly obliquely arranged saw blade 7a is done as it is in 7 is indicated.

Furthermore, it is indicated that for the most common bending angle of 90 °, a stop 19 can be provided which facilitates the user bending rectangular frames and thus this from the device 1 assisted manual production of such distance-retaining inner frame rationalized and accelerated.

Especially in 1 and 2 one recognizes thereby that the stop 19 as against a restoring force, in the embodiment against a compression spring 20 is formed opposite the plane occupied by the curved hollow profile level swivel or niederdruckbarer lever. He is designed as a rocker or a latch, with his front page 21 forms the abutment surface for the hollow profile or the bending beam or a counter-attack thereon in pivoted by 90 ° position. In 2 it is recognized in a position to cooperate with the bending cheek 3 or a support located on it 22 , where he is in total with his serving as a stop face 21 below the level of the hollow section 2 or a resulting frame and also below the surface of the platen 8th is arranged.

Furthermore, one recognizes in the 1 - 7 - in 1 and 2 in side view, in 3 - 6 in plan view and in 7 in cross-section or in front view - serving as a support support 22 for the hollow profile 2 which is adjacent to the separation point and its leadership 9 is arranged and on which the hollow profile 2 according to 2 and 7 when sawing through with his bending and separating the platen 8th facing side web rests. Practically this support is located 22 approximately flush or in alignment with the surface of the platen 8th ,

It is mainly based on the 7 clearly that the support 22 a the edge or transition between side bar and inner crosspiece of the hollow section 2 detecting or supporting slope 23 , Curvature or the like having guide in the embodiment over the entire longitudinal extension of the support 22 enough. Thus, differently sized hollow profiles can be detected with different width side bars each. In addition, this provides from its free edge to the support 22 down sloping slope 23 for that when pressing the hollow section 2 to the support 22 at the same time a force component in the direction of its outer transverse web and thus arises against its support, so that a user by holding down the hollow section 2 in the area of this support 22 Achieved a good fix, which is a vibration-free cutting with the saw 7 allowed. Practically creates a kind of jamming of the hollow section, so that the outgoing of the saw teeth movements and loads not to unwanted displacements of the hollow section 2 at his cutting lead.

In the drawings, the platen is 8th and thus also the side web of the hollow profile facing it arranged approximately horizontally, so that the transverse webs of the hollow profile 2 stand vertically about. But it is also possible to make the arrangement obliquely or even vertically, so that then the side bars with their cross-section in a corresponding, the skew or orientation of the support plate 8th Appropriate orientation and reach the transverse webs in the area of the repository more and more approximate a horizontal position.

It should be noted that in the embodiment, especially the holder or a retaining screw for the support 22 the counter-attack for the attack 19 form.

That already on the basis of 1 . 2 . 5 and 8th mentioned and described abutment 4 is in the 9 and 10 shown enlarged with an advantageous embodiment. It becomes clear that in the area of this abutment 4 on the one hand, as the already mentioned hold-down a hold-down plate 6 and on the other hand as a support for the hollow profile 2 a bearing plate 26 are provided, between which the hollow profile 2 is held during the bending process so that even in the bending area no distortions or buckling of its side bars can occur. At the same time considering the 9 and 10 will be appreciated that the hold-down plate 6 and the bearing plate 26 each designed differently and are interchangeable, to adapt to differently shaped cross-section hollow sections 2 to enable.

In 9 is a slightly differently shaped hollow profile 2 as in 10 to recognize. The main difference is that in the hollow section 2 according to 9 prefabricated on the side bars in a conventional manner seals 28 , For example, butyl cords are arranged, which in the bending process and the clamping between the bearing plate 26 and hold-down plate 6 should not be crushed. In the hollow profile 2 according to 10 however, the side bars are smooth and flat and should remain so even in the bending area.

The hold-down plate 6 and the bearing plate 26 according to 9 therefore have a medium protruding paragraph 27 in the area of the abutment pin 5 that is practically the middle of both this paragraph 27 as well as the entire plate forms. The height of this paragraph 27 corresponds according to 9 about the supernatant of the previously attached seal 28 so that the hollow profile 2 next to the seal 28 between hold-down plate 6 and bearing plate 26 can be detected with the desired force without the seal 26 it bothers or in turn is squeezed.

The hold-down plate 6 and the bearing plate 26 according to 10 on the other hand are adjacent to the abutment pins 5 smooth and flat.

In the exemplary embodiment, the bearing plate 26 and the hold-down plate 6 each together with the projecting abutment pin 5 releasably and interchangeably attached. For this purpose, each of these plates, so the bearing plate 26 and the hold-down plate 6 both embodiments on its side facing away from the abutment pin a bolt-like projection 29 in a hole 30 or bore fits and it can be fixed in a form-fitting and / or non-positive or clamping. To replace or replace the plates 6 and or 26 So only need the projections 29 from their perforations 30 to be pulled out or pushed, then the corresponding projections 29 to introduce the other plates.

It can be seen that the bolt-like projection 29 a circumferential O-ring on its circumference 31 to increase the friction in the counter-perforation 30 or bore. This leads to a frictional fixing, which requires no complicated assembly activity. By inserting the projection 29 in the corresponding hole 30 becomes the O-ring 31 compressed accordingly, but remains by an annular groove on the projection 29 in its desired position and allows in the same way again pulling out the projection 29 from the perforation 30 ,

The bolt-shaped projection 29 each has a flattening 29a that are inside the perforation 30 with a counter stop or cross pin 32 cooperates as anti-rotation. This allows each of the plates 6 and 26 be set at its holder or storage in the direction of rotation. If this holder or bearing is rotatable or pivotable on your part, the plates are also rotated. On the other hand, if a rotation of these plates relative to their support during the bending process desired, could be dispensed with the rotation.

The recording perforation 30 for the hold-down plate 6 is coaxial with the screw carrying it 15 arranged and has one to the opposite end of this screw 15 reaching and there open continuation 30a with in this case smaller cross-section. This makes it possible to replace the hold-down plate 6 with a pen-like tool through this sequel 30a through the lead 29 to charge at his end and take him out of his receiving mouth 30 push out.

In the same way also has the recording perforation 30 for the bearing plate 26 a downward in this case, open at its lower end continuation 30a , which, however, has no cross-sectional reduction, but could have. In this case, the bearing plate is changed 26 a pin, mandrel or the like tool pushed up from below to the bearing plate 26 and her bolt-shaped projection 29 upwards out of the opening 30 push out.

It is particularly favorable if the bearing plate 26 and / or the hold-down plate 6 are round and in the radial direction at least over the width of the side webs of the hollow section to be bent 2 extend. In 10 it is shown that at least the flat plates 6 and 26 that do not have a central paragraph 27 , So have no step-like increase in their central region, can also protrude beyond the side webs of the hollow section.

The height of the flat central paragraph 27 opposite the rest of the plates 6 and 26 is sized so that the radially outside of the raised paragraph 27 located section of the plate 6 or 26 the protective film covered with a protective film 27 touched and pressurized with a small force, so that they are in a corresponding groove of the hollow section 2 is held fixed during the bending process and thus follows the bending process.

By the possibility of the hold-down plate 6 and / or the bearing plate 26 to make replaceable and depending on the shape of the hollow profiles 2 different, the device will 1 even more versatile. Since the above-mentioned hold-down 6 In these cases, as a plate or plate-shaped plate is formed, it is also called "hold-down plate 6 '' designated.

The device 1 for bending a spacer inner frame for an insulating glass pane of a hollow profile 2 has a bending area continuing the feeding area 3 on, which is pivotable about a pivot axis transverse to this feed direction and thereby the hollow profile 2 acted upon on its outside. On the inside of the bending point is an abutment 4 with a hold-down 6 for the hollow profile 2 and further provided is a separator which, after bending the frame, serves to separate it from the further supplied hollow profile 2 separate. In this case, the separation device is a manually operable or manually operated tool, preferably as a saw 7 educated. At the distance in which the later connection point of the two frame ends is removed from a frame corner is on the device 1 a guide 9 for the hand-operated tool or the saw blade 7a arranged so that the separating cut perpendicular to the hollow profile 2 is guided and thus fit together the frame leg parts fit together and abge can be sealed. To great bending stresses on the outside of the hollow section 2 and to avoid any resulting distortions and deformations, can at this point a partial separation or scoring in particular with the same tool or the same saw 7 done so that the outer cross section of the hollow profile ruptures when bending and can be closed again with a sealant.

Claims (36)

Contraption ( 1 ) for bending a spacer inner frame for an insulating glass pane made of a continuous hollow profile ( 2 ) with a pivoting bending cheek ( 3 ), with an abutment defining the inside of the bending area and the bend ( 4 ), with a hold-down ( 6 ) for the hollow profile ( 2 ), in particular in the bending area, with a separating device or saw, with which the completely or partially curved frame of the respectively supplied hollow profile ( 2 ) is separable, and in particular with a horizontal, oblique and / or adjustable in its slope support plate ( 8th ) or abutment wall as a support of the wholly or partially curved frame, characterized in that the separating device or saw ( 7 ) is a manually operated or manually operated tool and that in the distance in which the connection point of the two frame ends is removed from a frame corner, a guide ( 9 ) for the hand-operated tool or the saw blade ( 7a ) of the hand saw ( 7 ), whereby the separating cut perpendicular to the hollow profile ( 2 ) is guided. Device according to claim 1, characterized in that the guide ( 9 ) for the saw blade ( 7a ) of the hand saw ( 7 ) in the vertical or downward direction transverse to the hollow profile ( 2 ) and its feed direction oriented and open at the bottom. Apparatus according to claim 1 or 2, characterized in that the guide ( 9 ) for the hand saw ( 7 ) by at least two pairs of bolts ( 10 ) or pins is formed, wherein the clear distance between two such a pair forming bolt ( 10 ) about the thickness of the saw blade ( 7a ) or exceeds the thickness of the saw blade by a small amount of play and that two pairs of two bolts ( 10 ) are arranged at a distance from each other and the feed region of the hollow profile between these two pairs of bolts ( 10 ) runs. Device according to claim 3, characterized in that the guide ( 9 ) forming bolts ( 10 ) each have at least on the mutually facing sides of an arcuate or circular arc-shaped cross-section, or overall a circular cross-section and that the bolts ( 10 ) made of metal or hardened steel. Device according to one of claims 3 or 4, characterized in that the spacing of the bolts ( 10 ) as a leadership ( 9 ) serving bolt pairs adjustable and each forming a pair of bolts to each other and / or for adaptation to differently thick saw blades ( 7a ) to each other and from each other adjustable and fixable. Device according to one of claims 3 to 5, characterized in that the guide ( 9 ) for the saw blade ( 7a ) forming bolts ( 10 ) are held on one side or clamped and the slot located between them at the end facing away from the clamping point of the bolt ( 10 ) is open and runs free. Device according to one of claims 3 to 6, characterized in that the bending cheek ( 3 ) in initial position between the two the leadership ( 9 ) forming bolts ( 10 ) and / or at least one or two cutouts ( 11 ), which in this position the bolts ( 10 ), and that the bending cheek ( 3 ) in the bending process relative to the guide ( 9 ) and the bolt ( 10 ) from the space between these bolts ( 10 ) is pivotable out. Device according to one of claims 3 to 7, characterized in that in the transverse direction of the hollow profile ( 2 ) and the feed direction between the clamping points or holders of the guide-forming bolts ( 10 ) the leadership ( 9 ) by at least one or two spaced rollers ( 12 ) is bounded by metal or steel or hardened steel whose axes of rotation ( 13 ) transverse to the separation or sawing movement and in the feed direction of the hollow profile ( 2 ). Device according to one of the preceding claims, characterized in that the abutment located in the bending region ( 4 ) is interrupted in the vertical direction and off from the width of the hollow profile ( 2 ) each shortened, aligned and mutually facing projections ( 5 ), one of which is in the region of an overlying web and the other in the area of 6 ) detected further side bar each projecting. Apparatus according to claim 9, characterized in that the abutment ( 4 ) forming projections ( 5 ) are thin pins, each abutting at least on the edge of the inner side of the frame forming transverse web, from which depart for serving the individual disks of the insulating glass side webs. Device according to one of claims 9 or 10, characterized in that the abutment projections ( 5 ) or pins on swivel or swivel projecting bare plates or surfaces whose axis of rotation with the geometric center axis of the abutment projections ( 5 ) and that these rotatable plates with the bending cheek ( 3 ) are coupled in the sense of a synchronous Mitdrehbewegung during the bending process or rigidly connected. Device according to one of claims 1 to 11, characterized in that the bending cheek ( 3 ) for a manual operation at a distance from its pivotal mounting a handle ( 14 ) or a hand attack point. Device according to one of claims 9 to 11, characterized in that the hold-down device ( 6 ) and the abutment projection ( 5 ) in its direction of extension relative to the other abutment projection ( 5 ) is adjustable and fixable for adaptation to differently sized hollow profiles. Device according to claim 13, characterized in that the hold-down device ( 6 ) on at least one adjusting screw ( 15 ) is attached, which on its front side as hold-down ( 6 ) a rotatable plate with the abutment pin ( 5 ) and by twisting due to their thread in the axial direction to the other abutment projection ( 5 ) or movable away from it. Device according to claim 14, characterized in that the hold-down device ( 6 ) carrying or forming screw ( 15 ) projects beyond the mating thread and in the protruding region has a knurling, a handle. Device according to one of claims 1 to 15, characterized in that on the outside of the bending region of the device ( 1 ), a second separating device is provided, with which the extending on the outside of the bending region transverse web of the hollow profile ( 2 ) transversely to the feed direction and to the longitudinal extent of the hollow profile ( 2 ) can be provided with a predetermined breaking point or can be carved or cut to the extent that this transverse web lying on the outside can be separated or torn parallel to the abutment during bending. Apparatus according to claim 16, characterized in that the outside of the bending region or the ruptured or torn region of the outer transverse web of the hollow profile ( 2 ) on the device ( 1 ) is openly accessible. Device according to one of claims 16 or 17, characterized in that the second separating device and separating point comprise a guide ( 9 ) for a hand-operated or hand-operated tool or a hand saw ( 7 ), which are perpendicular to the feeding direction of the hollow profile ( 2 ) serves. Device according to one of claims 16 to 18, characterized in that the same hand-operated or hand-operated separating device or the separating tool or the saw ( 7 ) for separating the bent frame from the supplied hollow profile ( 2 ) is also provided for scribing or cutting the outside of the bending region. Device according to one of claims 16 to 19, characterized in that for guiding the tool or the saw ( 7 ) on the outside of the bending area a guide slot ( 9 ) or by at least two spaced bolts ( 10 ) formed guide slot ( 9 ), the bolts ( 10 ) are held one-sided and between themselves, one on the holder. facing away from the side opening guide slot ( 9 ), which is limited in the region of the holder with respect to the insertion depth of the tool by one or more stops such that only the outer web is scratched or separable by the cutting tool or the saw. Device according to one of claims 18 or 20, characterized in that the guide ( 9 ) of the second separation point relative to the abutment ( 4 ) and the bending cheek ( 3 ) is located at the point where after bending the vertex of the outside of the bend is about. Device according to one of claims 18, 20 or 21, characterized in that under at least one of the guides ( 9 ) a receptacle or a quiver ( 17 ) for storing the hand saw ( 7 ) is provided in a handy position, wherein the receptacle or the quiver ( 17 ) for the hand saw ( 7 ) a receiving slot ( 18 ) for receiving the saw blade ( 7a ) and one the saw blade ( 7a ) holding bracket and the insertion depth is dimensioned such that the handle ( 7b ) of the hand saw ( 7 ) survives in whole or in part. Apparatus according to claim 22, characterized in that the slot-shaped quiver ( 17 ) in continuation of the guide slot ( 9 ) and the hand saw ( 7 ) holds in a position corresponding approximately to their cutting position. Device according to one of the preceding claims, characterized in that for a pivoting of the bending beam ( 3 ) at a right angle a stop ( 19 ) is provided. Apparatus according to claim 24, characterized in that the stop ( 19 ) as against a restoring force or spring ( 20 ) With respect to the plane occupied by the curved hollow profile level pivotable or depressible lever out is forming. Device according to one of claims 1 to 25, characterized in that adjacent to the separation point and - seen in the feed direction - behind the bending point and behind the abutment ( 4 ) ( 9 ) a support or a support ( 22 ) for the hollow profile ( 2 ) and its bending and separating the support plate ( 8th ) facing side web is provided. Device according to claim 26, characterized in that the support ( 22 ) a the edge or transition between side bar and inner crosspiece of the hollow profile ( 2 ) detecting or supporting slope ( 23 ), Curvature or guidance. Device according to one of claims 1 to 27, wherein in the region of the abutment ( 4 ) on the one hand as hold-down a hold-down plate ( 6 ) and on the other hand as a support for the hollow profile ( 2 ) a bearing plate ( 26 ) are provided, characterized in that the hold-down plate ( 6 ) and / or the bearing plate ( 26 ) are interchangeable and optionally either as a flat, up to the abutment pin ( 5 ) or plates having at least one central projecting shoulder ( 27 ) in the area of the abutment pin ( 5 ), the height of the paragraph ( 27 ) about a lateral projection on the one or more side webs of the hollow section to be bent or the supernatant of a previously attached seal ( 28 ) of durable-elastic material corresponds. Apparatus according to claim 28, characterized in that the bearing plate ( 26 ) and / or the hold-down plate ( 6 ) together with the projecting abutment pin ( 5 ) is detachably and removably attached. Device according to one of claims 28 or 29, characterized in that the bearing plate ( 26 ) and / or hold-down plate ( 6 ) on its abutment pin ( 5 ) facing away from a bolt-like projection ( 29 ), which is in a perforation ( 30 ) or bore fits and it can be fixed positively and / or non-positively or clamped. Device according to claim 30, characterized in that the bolt-like projection ( 29 ) at least one circumferential O-ring ( 31 ) for increasing the friction in the counter-perforation ( 30 ) or bore. Device according to one of claims 30 or 31, characterized in that the bolt-shaped projection ( 29 ) a flattening ( 29a ), which within the perforation ( 30 ) with a counter stop or cross pin ( 32 ) cooperates as anti-rotation. Device according to one of claims 30 to 32, characterized in that the receiving perforation ( 30 ) for the hold-down plate ( 6 ) coaxially in the screw carrying it ( 15 ) and one to the opposite end of this screw ( 15 ) and openly continuing ( 30a ) has a smaller cross-section. Device according to one of claims 30 to 33, characterized in that the receiving perforation ( 30 ) for the bearing plate ( 26 ) a downward, open at its lower end continuation ( 30a ) having. Device according to one of claims 28 to 34, characterized in that the bearing plate ( 26 ) and / or the hold-down plate ( 6 ) are round and in the radial direction at least over the width of the side webs of the hollow profile to be bent ( 2 ) and / or overhang the side bars. Device according to one of claims 28 to 35, characterized in that the height of the flat central shoulder ( 27 ) for hollow profiles ( 2 ) with externally prefabricated attached seal ( 28 ) is dimensioned so that the radially outside of the raised paragraph ( 27 ) located portion of the plate ( 6 . 26 ) the seal coated with a protective film ( 28 ) or pressurized with little force.