EP2483504B1 - Device for assembling a window sash having an integrated insulating glass pane - Google Patents

Description

The invention relates to a device for assembling sashes with integrated insulating glass, which has a frame formed of plastic hollow sections with an inner side, an inner side facing away from the inside and two flanks, which connect the inside and the outside together, the frame on its inside has two mutually parallel webs, which form an all-round boundary of the window opening of the window sash and are glued to two glass panels, which are held by the two webs at a distance. The US 6,286,288 B1 and the US 7,097,724 B2 disclose such casements for sash windows and methods of manufacture known as "sashlite".

In the sashlite method, a rectangular or square frame is first formed from an extruded plastic hollow profile by the four legs of the frame are cut from the plastic hollow profile and welded at their ends to form the corners of the frame in pairs with each other by ultrasound. The frame has on its inside two parallel webs. In the space between these two webs, a pasty adhesive is injected, in which a moisture-binding material, in particular molecular sieves in powder form, is stored. On the outside of the two webs is circumferentially applied to all four legs of the frame, a strand of a sealant and adhesive, with which two glass sheets are glued to the two webs, which serve as a spacer for the two glass sheets. Such a sealant and adhesive is hereinafter referred to as sealant. It has the task of establishing a firm bond between the inwardly directed webs of the frame and the glass sheets and the gap between the webs and the glass sheets against the ingress of moisture and against a loss of a heavy gas, which optionally filled in the space between the glass sheets is to seal.

The prefabricated frame is placed on a horizontal conveyor track and conveyed to a processing station, in which first the adhesive, which contains the moisture-binding material is injected at all four legs of the frame in the space between the two webs, which to the opposite leg of the Frame is open. Thereafter, a strand of the sealant is applied to the top of the two webs and glued a first glass sheet on it. Then the frame on the horizontal conveyor track is turned over, so that the web with the first glass panel adhering thereto is at the bottom and the second of the two parallel webs is at the top. Then, one strand of the sealing compound is applied to the now uppermost web and the second glass sheet is glued to this strand.

One of the two webs outside the area, which is covered by the glass panels, a hole which leads into the space between the glass panels. Through this hole, the gap between the two glass sheets can be vented when the two glass sheets are pressed against the webs, whereby the gap between the glass sheets is reduced. The pressing of the glass panels is z. B. in that in the region of the two webs with rollers is acted upon on the glass sheets and thereby the glass sheets are pressed against the webs, whereby the sealing compound pressed flat and the gap between the two glass sheets is sealed. As another way to press the two glass panels of a sashlite window to the two webs of the window frame, it is known through the bore, which is provided in one of the webs, air from the To suck space between the two glass panels, so that in the space creates a negative pressure, which pulls the glass panels against the webs, thereby pressing the sealant flat.

When sashlite method, it is also known to put two tubes in the hole in one of the two webs of the window frame. Through one of the tubes, a heavy gas, e.g. Argon, blown into the gap between the two sheets of glass, air or a mixture of air and the heavy gas is sucked out of the space between the two glass panels by the other tube. As a result, the air in the space between the glass panels is partially replaced by the heavy gas, whereby the heat transfer between the two glass panels is difficult. After such gas exchange, the bore is sealed in the web of the frame.

Finally, cover strips are inserted into the frame, which cover the edge of the glass panels to the outside. The sash with integrated insulating glass is completed.

The known sashlite method is largely performed manually. The disadvantage is that the personnel costs are high and quality defects are inevitable.

The device according to the invention is the subject of claim 1. Advantageous developments of the device are the subject of the dependent claims.

• mit einem Waagerechtförderer, welcher in der Höhe verstellbar auf einem Untergestell vorgesehen ist,
• mit einem am Untergestell angebrachten, vom Untergestell aufragenden Gestell, an welchem oberhalb des Waagerechtförderers parallel zu diesem wenigstens drei nebeneinander liegende Reihen von Stützelementen angebracht sind, welche in der Höhe verstellbar und so angeordnet sind, dass sie auf dem Waagerechtförderer geförderte Glastafeln und Rahmen in senkrechter oder einige Grade nach hinten geneigter Lage abstützen und führen können,
• mit einem vor dem Waagerechtförderer auf dem Untergestell gelagerten vorderen Gestell, welches rahmenförmig ausgebildet und quer zum Waagerechtförderer auf dem Untergestell verschiebbar ist,
• mit einem hinter dem Waagerechtförderer auf dem Untergestell angeordneten hinteren Gestell, welches rahmenförmig ausgebildet und quer zum Waagerechtförderer auf dem Untergestell verschiebbar ist,
• wobei sowohl am vorderen Gestell als auch am hinteren Gestell eine horizontale Traverse auf und ab verschiebbar und eine vertikale Traverse horizontal verschiebbar gelagert sind,
• mit Stempeln die an einer feststehenden unteren Traverse, an der waagerechten verschiebbaren Traverse, an der verschiebbaren vertikalen Traverse und an einem zu dieser parallelen aufragenden Pfosten des vorderen Gestells und des hinteren Gestells angebracht und waagerecht bzw. einige Grade gegen die Horizontale geneigt quer, insbesondere rechtwinklig zur Förderrichtung des Waagerechtförderers verschiebbar sind, wobei die am vorderen Gestell angebrachten Stempel in Richtung zum hinteren Gestell vorgeschoben werden können und die am hinteren Gestell vorgesehenen Stempel in Richtung zum vorderen Gestell vorgeschoben werden können,
• und mit Saugern welche sowohl am vorderen Gestell als auch am hinteren Gestell vorgesehen sind und von denen die am vorderen Gestell angebrachten Sauger dem hinteren Gestell zugewandt sind, während die am hinteren Gestell vorgesehenen Sauger dem vorderen Gestell zugewandt sind.

The device according to the invention for assembling window sashes with integrated insulating glass pane, which have a frame formed of plastic hollow profiles with an inside, an inside facing away from the inside and two flanks, which connect the inside and the outside together, the frame on its inside two has parallel webs, which form an all-round boundary of the window opening of the window sash and are glued to two glass panels, which are held by the two webs at a distance, is equipped with the following features:

• with a horizontal conveyor, which is provided in height adjustable on a base,
• with a mounted on the base, upstanding from the frame frame on which above the horizontal conveyor parallel to this at least three adjacent rows of support elements are mounted, which are adjustable in height and arranged so that they promoted on the horizontal conveyor glass panels and frame in vertical or can support and guide a few degrees to the rear inclined position
• with a front frame which is mounted on the underframe in front of the horizontal conveyor and which is frame-shaped and displaceable on the underframe transversely to the horizontal conveyor,
• with a rear frame arranged behind the horizontal conveyor on the underframe, which frame-shaped and is displaceable transversely to the horizontal conveyor on the base frame,
• wherein both on the front frame and on the rear frame, a horizontal cross member are displaceable up and down and a vertical cross member are mounted horizontally displaceable,
• with punches attached to a fixed lower cross-piece, to the horizontal sliding cross-piece, to the sliding vertical cross-piece and to a parallel upstanding post of the front frame and the rear frame and horizontally or a few degrees inclined to the horizontal transversely, in particular at right angles be displaced to the conveying direction of the horizontal conveyor, wherein the attached to the front frame punch can be advanced towards the rear frame and the provided on the rear frame punch can be advanced towards the front frame,
• and with suckers which are provided on both the front frame and the rear frame, and of which the suckers attached to the front frame face the rear frame, while the suckers provided on the rear frame face the front frame.

• Das Aufstellen des Rahmens und der Glastafeln in senkrechter Lage oder in einer wenige Grade gegen die Senkrechte geneigten Lage und das Durchführen der zu einem zusammengebauten Fensterflügel führende Arbeitsschritte in einer solchen Vorrichtung, in welcher die Rahmen und Glastafeln senkrecht oder annährend senkrecht aufgestellt zusammengebaut werden, ist eine Grundlage für eine wesentliche Rationalisierung des Zusammenbauvorgangs.
• Es werden Personalkosten eingespart.
• Die maschinell erfolgenden Arbeitsschritte im Zusammenbauvorgang sind von individuellen Schwächen und Fehlern des Bedienungspersonals unabhängig.
• Die Qualität der Fensterflügel, die in der neuen Vorrichtung zusammengebaut werden, wird wesentlich gesteigert und die Lebensdauer der integrierten Isolierglasscheibe wird erheblich verlängert.
• In der neuen Vorrichtung können die Rahmen und Glastafeln unabhängig voneinander maschinell bewegt und vor dem Zusammenbauen justiert werden. Justierfehler können auf diese Weise weitgehend ausgeschlossen werden.
• Durch die vorgesehenen verschiebbaren Traversen sowohl am vorderen Gestell als auch am hinteren Gestell kann die Vorrichtung leicht an wechselnde Formate der Rahmen und Glastafeln angepasst werden.
• Dadurch, dass zwei unabhängig voneinander bewegbare Gestelle vorgesehen sind, von denen eines vor dem Waagerechtförderer und eines hinter dem Waagerechtförderer liegt, kann die Vorrichtung auch leicht auf wechselnde Dicken der Rahmen, auf wechselnde Dicken der Glastafeln und auf wechselnde Abstände der Glastafeln im Fensterflügel eingestellt werden.
• Mit den vorgesehenen Stempeln können die Glastafeln gezielt dort, wo es nötig ist, nämlich im Randbereich der Glastafeln, mit gleichmäßigem Andruck mit dem Rahmen verklebt werden, wodurch eine wiederholbar gute und gleichmäßige Verklebung ermöglicht wird, die für die Abdichtung der integrierten Isolierglasscheibe wichtig ist.
• Mit den Saugern können die Glastafeln in der Vorrichtung fixiert werden, nachdem sie in Förderrichtung genau positioniert wurden. Nach dem Fixieren der Glastafeln kann der Rahmen in der gewünschten Höhe relativ zu den Glastafeln ausgerichtet werden, in welcher ein exakter Zusammenbau mit wiederholbarer Genauigkeit möglich wird.

The invention has significant advantages:

• The erection of the frame and the glass panels in a vertical position or in a position slightly inclined from the vertical and performing the operations leading to an assembled window sash in such an apparatus in which the frames and glass panels are assembled vertically or nearly perpendicularly is a basis for a significant rationalization of the assembly process.
• Personnel costs are saved.
• The automated operations in the assembly process are independent of individual weaknesses and operator errors.
• The quality of the sashes, which are assembled in the new device is significantly increased and the life of the integrated insulating glass pane is considerably extended.
• In the new apparatus, the frames and glass panels can be independently moved and adjusted prior to assembly. Alignment errors can be largely excluded in this way.
• The provided movable trusses on both the front frame and the rear frame, the device can be easily adapted to changing formats of the frame and glass panels.
• The fact that two independently movable racks are provided, one of which is located in front of the horizontal conveyor and one behind the horizontal conveyor, the device can also be easily adjusted to changing thicknesses of the frame, changing thicknesses of the glass panels and changing distances of the glass panels in the sash ,
• With the provided stamps, the glass panels can be selectively bonded where necessary, namely in the edge region of the glass panels, with even pressure to the frame, whereby a repeatable good and uniform bonding is possible, which is important for the sealing of the integrated insulating glass.
• With the suckers, the glass sheets can be fixed in the device after they have been accurately positioned in the conveying direction. After fixing the glass sheets, the frame can be aligned at the desired height relative to the glass sheets in which accurate assembly with repeatable accuracy becomes possible.

The horizontal conveyor is preferably a three-track horizontal conveyor. This makes it possible to independently move the two glass sheets and the frame, although this should be avoided as far as possible for reasons of short cycle time of the apparatus. For the purpose of adjustment, however, the possibility of moving the glass panels and the frame independently is welcome.

Preferably, the three-lane horizontal conveyor three juxtaposed conveyor belt, the upper run are in a common plane. This makes it easier to connect the device to upstream sections of a production line on which the glass sheets and the frames are prepared for assembly and most easily conveyed at the same level. The required different orientation of the glass sheets on the one hand and the frame on the other hand in their height relative to each other is then finally carried out in the device according to the invention.

The supporting elements, which are to support and guide the glass sheets and the frame at some distance from the horizontal conveyor, preferably near its upper edge, are preferably free-running rollers whose axes are arranged perpendicularly or a few degrees to the vertical inclined backwards , The slight inclination to the rear has the advantage that the glass panels and the frame with appropriate inclination can be applied to the free-running rollers, which - especially during conveying - secures against tipping forward. The upper runners of the conveyor belts should be tilted backwards so that the axles of the free-running rollers are perpendicular to the common plane of the upper runners.

In both the front frame and the rear frame of the device, a part of the punches is preferably mounted on slides, one each on the stationary lower cross member, one on the movable horizontal cross member, one on the movable upright cross member and one on the opposite one protruding post of the frame is longitudinally displaceable and dragging a scissor lattice, which changes its extension by the sliding movement and to which further punches are attached, whose mutual distance and their distance from the punches mounted on the respective slide changes by the movement of the slider. The movement of the slides can be coupled with the movement of the movable trusses. It has the advantage that can be achieved by changing the extension of the scissor lattice, that the punch, which should press the glass sheets against the webs of the frame, acting at sufficiently uniform intervals on the edge region of the glass sheets and thus a uniform compression of the sealing compound between ensure the glass panels and the bars of the frame.

Preferably, adjusting means are provided on the movable horizontal traverse of both the front frame and the rear frame, which arms, in particular in the form of strips, which transverse to the conveying direction of the horizontal conveyor towards the opposite rear from the displaceable horizontal traverse of the front frame Frame can be advanced, whereas the provided on the horizontally displaceable traverse of the rear frame adjustment means can advance their arms transversely to the conveying direction of the horizontal conveyor towards the opposite front frame. Thereby, the upper leg of the frame adjusted in its desired position for assembly and in particular a slack, which he could have, be compensated by the arms of the adjusting means are moved under the upper leg of the frame, so that this when lowering the frame strikes the arms which define the desired position of the upper frame leg.

The adjusting devices, the punches and the suckers are preferably individually operable, in particular by pneumatic cylinders. This facilitates the adaptation of the device to different formats of the glass panels and frames.

The heat transmission through insulating glass panes can be reduced if the air in the interior of the insulating glass pane is completely or partially replaced by a heavy gas. In order to enable this even with a window sash according to the invention, it is preferably provided that provided either on the front frame or on the rear frame against the opposite frame directed suction are, with which an adjacent, sucked on the horizontal conveyor glass plate sucked and at two diagonally opposite corners to the rear, ie away from the opposite glass panel, can be bent. In this case, initially two accesses to the interior remain open when assembling the sash, wherein through an access, preferably through the lower access, the heavy gas is introduced, which then rises in the space between the two glass panels and displaces the air from the upper access. Such a configuration is particularly simple in the device according to the invention.

For reasons of simplification in the present patent application of a casement is mentioned. The term "window sash" is intended to include both sliding sashes as well as hinged sashes as well as door sashes with integrated insulating glass.

Fig. 1

zeigt in Draufsicht einen ersten Ausschnitt aus einer Zusammenbaulinie für Fensterflügel mit integrierter Isolierglasscheibe,

Fig. 2

zeigt eine Draufsicht eines zweiten Ausschnitts aus der Zusammenbaulinie für Fensterflügel mit integrierter Isolierglasscheibe,

Fig. 3

zeigt die Vorbereitungsstation aus Figur 1 in einer Schrägansicht,

Fig. 4

zeigt die Vorbereitungsstation aus Figur 3 in einer Seitenansicht mit Blickrichtung parallel zur Förderrichtung,

Fig. 5

zeigt als Detail den Ausschnitt A aus Figur 4,

Fig. 6

zeigt als Detail den Ausschnitt B aus Figur 4,

Fig. 7

zeigt die Zusammenbaustation aus Figur 1 in einer Schrägansicht,

Fig. 8

zeigt die Zusammenbaustation in einer Seitenansicht parallel zur Förderrichtung,

Fig. 9

zeigt den hinteren Teil der Zusammenbaustation aus Figur 8 in einer Vorderansicht,

Fig. 10

zeigt den vorderen Teil der Zusammenbaustation aus Figur 8 in einer Ansicht von dem hinteren Teil der Vorrichtung aus gesehen

Fig. 11

zeigt als Detail eine Schrägansicht auf das Auslaufende der Zusammenbaustation mit einem Fensterrahmen und zwei Glastafeln, die parallel nebeneinander stehen,

Fig. 12

zeigt als Detail C einen Ausschnitt aus dem hinteren Teil der Zusammenbaustation,

Fig. 13

zeigt einen als Detail D einen Ausschnitt aus dem vorderen Teil der Zusammenbaustation,

Fig. 14

zeigt einen ersten Ausschnitt aus Figur 13,

Fig. 15

zeigt einen zweiten Ausschnitt aus Figur 13 mit veränderter Einstellung, die

Fig. 16-18

zeigen drei aufeinanderfolgende Phasen des Zusammenbaus des Fensterflügels, dargestellt im Bereich von dessen oberen Rand, und

Fig. 19

zeigt einen Ausschnitt aus einem teilweise zusammengebauten Fensterflügel mit einer abgebogenen Glastafel beim Gasaustausch.

An embodiment of the invention will be explained below with reference to the accompanying drawings.

Fig. 1

shows in plan view a first section of an assembly line for window sash with integrated insulating glass pane,

Fig. 2

shows a plan view of a second section of the assembly line for sash with integrated insulating glass pane,

Fig. 3

shows the preparation station FIG. 1 in an oblique view,

Fig. 4

shows the preparation station FIG. 3 in a side view looking in parallel to the conveying direction,

Fig. 5

shows as detail the detail A from FIG. 4 .

Fig. 6

shows the detail B as a detail FIG. 4 .

Fig. 7

shows the assembly station FIG. 1 in an oblique view,

Fig. 8

shows the assembly station in a side view parallel to the conveying direction,

Fig. 9

shows the back of the assembly station FIG. 8 in a front view,

Fig. 10

shows the front part of the assembly station FIG. 8 in a view from the rear part of the device

Fig. 11

shows in detail an oblique view of the outlet end of the assembly station with a window frame and two glass panels that are parallel to each other,

Fig. 12

shows as detail C a section of the rear part of the assembly station,

Fig. 13

shows as a detail D a section of the front part of the assembly station,

Fig. 14

shows a first section FIG. 13 .

Fig. 15

shows a second section FIG. 13 with a changed attitude, the

Fig. 16-18

show three successive phases of the assembly of the sash, shown in the region of its upper edge, and

Fig. 19

shows a section of a partially assembled window sash with a bent glass sheet during gas exchange.

The FIGS. 1 and 2 show in a schematic plan view of an assembly line for sash or door leaf with integrated insulating glass. For the sake of simplicity, only window sashes will be discussed below. For door leaves, however, the corresponding applies. The term "wing" is intended to include both sliding and pivotable wings.

The representation in FIG. 2 includes the right end of the illustration FIG. 1 at.

The production line has a first horizontal conveyor 1 and an obliquely extending second horizontal conveyor 2, which open into a horizontally conveying switch 4, which connects to the third horizontal conveyor 3, which is arranged in alignment with the first horizontal conveyor 1. The first horizontal conveyor 1 consists of several sections, starting with a section 5, on which the individual glass panels 52, 53 are successively abandoned, from a section passing through a machine 6 for washing and drying the glass panels, and two sections 7 and 8, which serves for the intermediate transport and, if necessary, also a jamming of the glass panels 52, 53. In addition, in section 7 it is possible to check whether the washed glass panels are actually clean. In Sections 5 to 8, the first horizontal conveyor 1 has a horizontal row of synchronously driven rollers 9, which are located in the sections 5, 7 and 8 at the bottom of a support wall 10 which by a few degrees, z. B. is inclined at 6 ° to the vertical to the rear and is preferably designed as an air cushion wall. The glass panels are supported on the rollers 9 standing and leaned against the support wall 10. In the washing and drying machine 6, the glass sheets are supported in a conventional manner by an arrangement of washing brushes and rollers.

The second horizontal conveyor 2 also has a plurality of sections 11, 12, 13, 14 and 15, in each of which an endless conveyor belt 16 is provided with horizontally extending upper strand at the bottom of a support wall 17, which inclined at the same angle from the vertical out backwards The support wall 10. Conveniently, the upper strand is arranged at right angles to the support wall 10 and thus also inclined by a few degrees to the rear. The second horizontal conveyor 2 is used for conveying rectangular or square frames 51 (see FIG. 1 ), which are formed of plastic hollow sections. They are placed with one of their legs on the conveyor belt 16 and leaned against the support wall 17, in which for the reduction of friction, preferably with bristles, in particular with soft bristles, provided strips are inserted or glued. Just above the conveyor belt 16 is a row of free-running guide rollers 18, which are partially under the support wall 17, projecting beyond this and each have a perpendicular to the upper run of the conveyor belt 16 extending axis. At a distance from the support wall 17, a further row of support rollers 19 is preferably provided in front of this, the height of which can be adjustable and which, if necessary, serve to prevent the frame standing on the conveyor belt 16 from tipping over.

In section 11 of the second horizontal conveyor 2, the frames formed from the hollow plastic profiles 21 are applied to the horizontal conveyor 2.

The section 12 of the second horizontal conveyor 2 is associated with a system 20, which serves to inject into the space between two webs of the plastic hollow profile, from which the frame 51 is formed for the window sash, an adhesive in which a desiccant is incorporated. An example of such a plastic hollow profile is in the FIGS. 16 to 19 shown in cross section. The illustrated plastic hollow profile 21 has a flat outer side 22, a structured inner side 23, two flanks 24 and 25 and some hollow chambers. On the inside 23 are two to the flanks 24 and 25 and mutually parallel webs 26 and 27, the gap to the inside of the frame 51 is open. The webs 26, 27 are angled at their free end and thereby form a projection 28, to which the glass plates 52, 53 can strike, for which the webs 26 and 27 serve as spacers, see FIG. 18 , In the space between the webs 26 and 27, an adhesive 29 is injected through the system 20, in which a desiccant is incorporated. As the adhesive 29 is particularly suitable a polyisobutylene and as a desiccant molecular sieves. The adhesive 29 is expediently injected by means of a nozzle 30, which can be moved up and down parallel to the support wall 17 and is rotatable about an axis perpendicular to the support wall 17. For injecting the adhesive 29 into the space between the vertically extending webs 28, the nozzle 30 is moved upwards or downwards, while the frame 51 formed from the hollow profile 21 rests. In the space between the horizontal webs 26 and 27, the adhesive is 29, while the frame 51 formed from the hollow profile 21 is conveyed horizontally forward or backward and the nozzle 30 rests.

The section 14 of the second horizontal conveyor 2 is a system 31 for applying a strand 35 of a sealing compound on the opposite sides of the webs 26 and 27 assigned. For this purpose, there is a first nozzle 32 in front of the support wall 17 and a second nozzle 33 behind the support wall 17, from where it can reach through a downwardly extending slot 34 in the support wall 17 through this. The nozzles 32 and 33 are movable in the same way as the nozzle 30 and they are synchronously moved and actuated so that they simultaneously apply the sealing compound to the outside of the two webs 26 and 27. In the FIGS. 16 to 18 the strand 35 is shown from the sealant.

The sections 13 and 15 of the second horizontal conveyor 2 serve for the intermediate transport of the frame. In section 13, if necessary, rungs could be used in the frames 51.

The in FIG. 1 illustrated section of the production line starts with the switch 4, which between the in FIG. 1 shown two positions back and forth is pivotally. The switch 4 has a horizontal conveyor with a structure that is similar to or similar to one of the sections of the second horizontal conveyor 2 and therefore can be regarded as a pivotable continuation of the second horizontal conveyor 2. In the position in which the switch 4 is aligned with the first horizontal conveyor 1, it can take over the glass plates 52, 53 conveyed there and transfer them to a preparation station 36. In the position in which the switch 4 is aligned with the second horizontal conveyor 2, they can take over this a frame 51 for the window sash. In order to be able to transfer the frame 51 into the preparation station 36, however, the switch 4 must first be pivoted into that position in which it aligns with the preparation station 36 and the first horizontal conveyor 1.

The preparation station 36 is in the FIGS. 3 to 6 shown. It has on a base frame 37, which has two rearwardly inclined rails 38, a frame-shaped Frame 39, which has on its front side two rearwardly inclined posts 40 which project at right angles to the rails 38 upwards. The rails 38 extend at a right angle to the conveying direction of the first and third horizontal conveyor 1 and 3. The posts 40 are inclined at the same angle to the rear as the support walls 10. At the post 40 is an arrangement of three horizontal bars 41, 42nd and 43 slidably mounted up and down, so that the beams 41, 42 and 43 can be adjusted in height. The three beams 41, 42, and 43 each carry a horizontal row of free-running support rollers 44 which are rotatable about axes which are parallel to the posts 40. In the lower region of the frame 39, a three-lane horizontal conveyor 45 is attached to this, which has a horizontal support 46 for three endless conveyor belts 47, 48 and 49, whose upper run arranged at a distance parallel to each other and inclined at the same angle to the rear as the post 40th The two outer conveyor belts 47 and 49 serve to convey glass panels 52, 53, whereas the central conveyor belt 48, which is wider than the outer conveyor belts 47 and 49, is intended to convey a frame 51 for a casement. The conveyor belts 47 to 49 are driven separately. On both sides of the conveyor belt 47 and 49 freewheeling support rollers 50 are arranged on the support. They serve to guide the lower edge of the glass panels and the frame for the window sash. Their axes are parallel to the axes of the rollers 44 attached to the beams 41, 42 and 43.

By transversely displacing the frame 39 on the rails 38 of the undercarriage 37, each of the three conveyor belts 47, 48 and 49 can be brought into alignment with the horizontal conveyor of the switch 4. In the in FIG. 1 shown position can be passed from the switch 4, a frame 51 for a window sash on the middle conveyor belt 48; the support rollers 18 of the switch 4 are aligned with the support rollers 50, which are arranged between the rear conveyor belt 49 and the central conveyor belt 48 and inclined at the same angle to the rear as the posts 40 are. To transfer a glass panel 53 to the rear conveyor belt 49, this is positioned by transverse displacement of the carrier 46 so that the arranged behind the conveyor belt 49 support rollers 50 are aligned with the support rollers 18 in the switch 4. In order to pass a glass panel 52 on the front conveyor belt 47, this is positioned by transversely displacing the carrier 46 so that the between the front conveyor belt 47 and the middle conveyor belt 48 arranged support rollers 50 are aligned with the support rollers 18 in the switch 4.

In the preparation station 36, the frame 51 and the two glass panels 52 and 53 are preferably positioned so that their front upstanding edges are approximately adjacent to one another and adjacent to the subsequent assembly station 54.

The assembly station 54 is in the FIGS. 7 to 15 shown. It has a base 55 with rails 56, the inclination of which coincides with the inclination of the rails 38 in the preparation station 36. On the base 55, a frame 57 is fixed, which is similar to the frame 39 of the preparation station 36 and how that has an arrangement of three bars 58, 59 and 60. To each of which a horizontal row of support rollers 61 are mounted, whose axes are approximately perpendicular, namely perpendicular to the rails 56 extend. The arrangement of the bars 58 to 60 is like the arrangement of the bars 41 to 43 in the preparation station 36 in height adjustably attached to posts of the frame 57. In contrast to the displaceable frame 39 in the preparation station 36, however, the frame 57 is fixed immovably to the base 55. A three-lane horizontal conveyor 62, which is similar in structure to the three-lane horizontal conveyor 45 in the preparation station 36, is height-adjustable on the undercarriage 55.

In front of the fixed frame 57, a front frame 63 is arranged, which is displaceable on a pair of rails 56. Behind the fixed frame 57, a rear frame 64 is arranged, which is also displaceable on a pair of rails 56. FIG. 2 shows a view of the rear frame 64. Two lateral posts 65 of the rear frame 64 have at their lower ends undercut guide members 66 which engage around the rails 56. At the post 65 a horizontal cross member 67 is attached, which by means of toothed belt 68, which are driven by a motor 69, on the post 65 up and down is displaceable. On the Traverse 67 stamp 70 are attached, which can be actuated by pressure cylinder 71, in particular by pneumatic cylinder, which in the FIGS. 7 and 8th are shown in FIG. 9 but are not visible because they are behind the Traverse 67. Above each punch 70 is an adjusting device 72nd provided, see FIG. 16 consisting of a pneumatic cylinder 73, whose piston rod 74 has a head 75 to which a parallel to the piston rod 74 guided, extendable strip 76 is attached. The adjusting device 72 serves to position the upper leg of the frame 51 and to eliminate any slack in the upper leg of the frame 51, see FIGS. 16 to 18 ,

At a lower cross member 77 of the rear frame 64 also individually actuated plunger 70 and in addition a number of suckers 78 are attached by pressure medium cylinder. Another sucker 78 is attached to the horizontal cross member 68. The suckers 78, like the dies 70, can be displaced individually by pressure medium cylinders 89, in particular by pneumatic cylinders. At the lower cross member 77 and at an upper cross member 79 of the rear frame 64, a parallel to the post 65 upright cross member 80 is mounted horizontally displaceable. The upright cross member 80 crosses the horizontal cross member 67 and is arranged behind this. The displacement of the upright cross member 80 takes place as in the horizontal cross member 67 by means of two toothed belts 81, which are driven by a motor 82. At the upright cross member 80 and at its parallel to the post 65 further punch 70 and 70 a are mounted, which are also actuated individually by pressure medium cylinder. Most stamps 70 are attached to the trusses 67, 77 and 80 and the post 65 each on a slider 83, which carries on a scissor lattice 84 mounted smaller punch 70 a, whereby the distance of the associated with the pawl 84 punch 70, 70a changes from each other. The length compensation effected by the louver 84 makes it possible to adapt the position of the punches 70 and 70a optimally to the height and width of the frames 51. The adaptation to the height and width of the frame 51 for the sash also serves the displacement of the trusses 67 and 80th

FIG. 9 further shows two suckers 85 and 86, which are larger than the suckers 78. The lower sucker 85 is in the view of FIG. 9 in the lower left corner of the bounded by the trusses 67, 77, 68 and the post 65 field and is attached to the lower beam 77. The upper sucker 86 is located in the diagonally opposite corner of this field. While the lower nipple 85 can only be moved back and forth and the rest of his position the upper cross member 77 retains, the upper nipple 86 may additionally follow the movements of the cross members 67 and 80 so as to maintain its position in the corner of the panel defined by the position of the cross members 67 and 80. With these suckers 85 and 86, a glass sheet 53, which is held by the suckers 78 in the field defined by the trusses 76, 70, 68 and the post 65, can be bent back at two diagonally opposite corners. In addition, the larger suction cups 85, 86 contribute to the fixation of the glass panels 52, 53, which has to be done before the three-track horizontal conveyor 62 can be lowered. The larger suckers 85 and 86, like the smaller suckers 78, are displaceable by pressure medium cylinders, in particular by pneumatic cylinders 89.

With the help of the larger suckers 85 and 86, access to the space between the two sheets of glass 52, 53 of the sash for the purpose of gas exchange can be temporarily kept open during assembly of a sash. During the gas exchange, air in the intermediate space of the glass panels 52 and 53 is replaced by heavy gas. The heavy gas is expediently supplied in the area of the lower corner in the vicinity of the lower teat 85 and displaces the air through the opening in the region of the diagonally opposite upper teat 86. So that the heavy gas is not discharged again through the access open from the lower teat 85 there a two-legged seal 87 is provided, which covers the gap between the frame 51 and the rear glass panel 53 in the lower corner of the frame 51 and thereby seals the access to the gap between the glass panels 52, 53. The seal 87 may, for. B. be a molded part of a sponge rubber or the like. Through the seal 87 extends a supply line 88 for the supplied heavy gas. The guided through the seal 87 end portion of the supply line 88 is preferably a closed at the end, porous pipe piece, which z. B. may consist of a sintered plastic, from which the heavy gas emerges diffusely, flows into the space between the glass plates 52, 53 and the air displaced upwards there, so that the air leaves the gap on the opening caused by the upper sucker 86.

FIG. 10 shows one of the FIG. 9 corresponding view of the front frame 63, which is arranged in the assembly station in front of the three-lane horizontal conveyor 62 is. This front frame 63 is substantially mirror-inverted with the rear frame 64, so that recourse may be had to the description of the rear frame 64 for the details. However, the front frame 63 does not have the larger sucker 85, not the seal 87 and also no supply line 88 for a heavy gas.

• Die für einen Fensterflügel benötigten beiden Glastafeln 52 und 53 werden auf den Abschnitt 5 des ersten Waagerechtförderers 1 aufgegeben. Der für den Fensterflügel benötigte Rahmen 51, welcher aus Kunststoff-Hohlprofilen vorgefertigt ist, wird auf den Abschnitt 11 des zweiten Waagerechtförderers 2 aufgegeben. Die Glastafeln 52 und 53 werden aufeinanderfolgend durch die Wasch- und Trockenmaschine 6 hindurchgefördert, können im Abschnitt 7 des ersten Waagerechtförderers 1 auf Reinheit überprüft werden, gelangen auf den Abschnitt 8 des ersten Waagerechtförderers 1, auf welchem sie erforderlichenfalls gestaut werden können, wenn die Weiche 4 oder die ihr nachfolgende Vorbereitungsstation 36 noch nicht aufnahmebereit sein sollten. Die Weiche 4 ist für die Glastafeln 52 und 53 aufnahmebereit, wenn sie mit dem ersten Waagerechtförderer 1 fluchtet und leer ist. In diesem Fall werden die beiden Glastafeln 52 und 53 aufeinanderfolgend auf die Weiche 4 gefördert. Wenn die Vorbereitungsstation 36 aufnahmebereit ist, wird sie durch Querverschieben so positioniert, dass entweder die hinter dem hinteren Förderriemen 49 angeordneten Stützrollen 50 oder die zwischen dem vorderen Förderriemen 47 und dem mittleren Förderriemen 48 angeordneten Stützrollen 50 mit den Stützrollen 18 der Weiche 4 fluchten. Im zuletzt genannten Fall wird dann die erste Glastafel 52 auf den vorderen Förderriemen 47 gefördert, von diesem bis kurz vor das Auslaufende der Vorbereitungsstation 36 gefördert und dort angehalten. Dann wird durch Querverschieben des Gestells 39 die für die zweite Glastafel 53 bestimmte Förderbahn mit dem hinteren Förderriemen 49 in die Flucht der Weiche 4 verschoben und die zweite Glastafel 53 von der Weiche 4 auf den hinteren Förderriemen 49 gefördert, welcher sie bis zum Auslaufende der Vorbereitungsstation 36 fördert und sie dort anhält. Anschließend wird der dreibahnige Waagerechtförderer 62 so positioniert, dass seine mittlere Förderbahn mit dem breiteren Förderriemen 48 mit dem ersten Waagerechtförderer 1 fluchtet.

In the described production line the sashes are assembled according to the following procedure:

• The two glass panels 52 and 53 required for a window sash are placed on the section 5 of the first horizontal conveyor 1. The frame 51 required for the window sash, which is prefabricated from hollow plastic profiles, is fed onto the section 11 of the second horizontal conveyor 2. The glass panels 52 and 53 are successively conveyed through the washing and drying machine 6, can be checked for purity in section 7 of the first horizontal conveyor 1, reach the section 8 of the first horizontal conveyor 1, on which they can be stowed if necessary, when the switch 4 or the subsequent preparation station 36 should not yet be ready for recording. The switch 4 is receptive to the glass panels 52 and 53 when it is aligned with the first horizontal conveyor 1 and is empty. In this case, the two glass sheets 52 and 53 are successively conveyed to the switch 4. When the preparation station 36 is ready to receive, it is positioned by moving it in a transverse position so that either the support rollers 50 located behind the rear conveyor belt 49 or the support rollers 50 located between the front conveyor belt 47 and the center conveyor belt 48 are aligned with the support rollers 18 of the switch 4. In the latter case, the first glass panel 52 is then conveyed to the front conveyor belt 47, promoted from this until shortly before the outlet end of the preparation station 36 and stopped there. Then, by moving the frame 39 transversely, the conveyor belt intended for the second glass panel 53 is displaced with the rear conveyor belt 49 into alignment with the switch 4 and the second glass panel 53 is conveyed by the switch 4 onto the rear conveyor belt 49, which feeds it to the outlet end of the preparation station 36 and stops them there. Subsequently, the three-lane horizontal conveyor 62 is positioned so that its middle Conveyor track with the wider conveyor belt 48 with the first horizontal conveyor 1 is aligned.

Over time, with the passage of the two glass panels 52 and 53 through the first horizontal conveyor 1 is on the second horizontal conveyor 2 in the section 12, the adhesive mass, in which a desiccant is incorporated, in the space between the two webs 26 and 27 of the frame 51st injected. In section 13 of the second horizontal conveyor 2 there is the opportunity, if desired, to insert rungs into the frame 51. In the subsequent section 14 of the second horizontal conveyor 2, an endless strand 35 of a sealing compound is applied to the outside of the two webs 26 and 27 without interruption. In the adjoining section 15 of the second horizontal conveyor 2 of the thus prepared and coated frame 51 can be stowed until the switch 4 is free and pivoted into its aligned with the second horizontal conveyor 2 position. Subsequently, the frame 51 is conveyed to the switch 4. As soon as this has happened, the switch 4 pivots back into alignment with the first horizontal conveyor 1. If this has not been done by then, the frame 39 of the preparation station 36 is next moved transversely on the underframe 37 with the intermediate conveyor belt 48 and the rear conveyor belt 49 arranged row of support rollers 50 in the alignment of the support rollers 18 in the switch 4 brought. Once this is done, the frame 51 is conveyed to the center conveyor belt 48 and conveyed from this to the outlet end of the preparation station 36. If the subsequent assembly station 54 is receptive, the frame 51 can arrive without stopping in the assembly station 54 and simultaneously the two glass panels 52 and 53 conveyed from the preparation station 36 in the assembly station 54. If, however, the assembly station 54 is not yet ready to pick up, the frame 51 is stopped in the preparation station 36. The frame 51 and the glass panels 52 and 53 then have the in FIG. 1 taken position shown. Once the assembly station 54 is ready to receive, the frame 51 and the two glass panels 52 and 53 are simultaneously conveyed into the assembly station 54 and moved to the vicinity of the outlet end, where they -. B. gesteuertso be stopped by position sensors that the upright edges of the two glass panels 52, 53 in the conveying direction on the upright edges of the two webs 26 and 27 of the frame 51 are centered. Since the upper runners of the conveyor belts 47, 48 and 49 lie in a common plane, the glass panels 52 and 53 are not yet correctly aligned in height to the height they must occupy in the frame 51, see FIG. 11 ,

In order to achieve this, the suckers 78 provided in the two racks 63 and 64 of the assembly station 54 are advanced and activated as far as the adjacent glass panel 52 or 53 by actuation of pneumatic cylinders 89, to the piston rod of which a respective suction device 78 is attached. so that the two glass sheets are sucked in and fixed in their position. In this case, only those suckers 78 are advanced and activated, which are required for the length and height of the respective glass panels 52 and 53. The dimensions of the glass panels 52, 53 may be known from manufacturing planning and may be dictated to the control of the assembly station 54, or may be determined by position sensors provided in the assembly apparatus 54. The trusses 67 and 80 can be adjusted in this way automatically to the current dimension of the glass panels 52, 53 and the associated frame 51. The adjustment of the trusses 67 and 80 to the dimensions of the current frame 51 includes the alignment of the punches 70, 70a, for which purpose the slides 83 are displaced to a position in which the punches 70, 70a reach the edge of the glass panels 52, 53 opposite possible uniform distances. Only suckers 78, which in the sense of FIG. 9 in the lower left, by the trusses 67, 77 and 80 and by the post 65 limited field are activated. In addition, the larger suckers 85 and 86 are advanced and activated against the glass sheets 52 and 53.

Simultaneously with the suckers 78 and the punch 70, 70a are extended from their pneumatic cylinders 71 and lie against the glass panels 52, 53, see Figure 16. In addition, the adjusting device 72 is now activated. For this purpose, the strips 76 are extended by operating the pneumatic cylinder 73, so that they pass under the flanks 24 and 25 of the upper leg of the frame 51, see FIG. 16 ,

Now the three-lane balance conveyor 62 can be lowered in the assembly station 54. As a result, the upper leg of the frame 51 on the strips 76th deposed, see FIG. 17 , And any slack of the upper leg of the frame 51 is eliminated. The three-lane horizontal conveyor 62 is lowered until the horizontal edges of the glass panels 52 and 53 are centered on the horizontal edges of the webs 26 and 27. The strands 35 of the sealant now lie opposite the glass sheets 52, 53 near their edge.

Next, the beams 58, 59 and 60 are raised so that the support rollers 61 disengage from the glass panels 52, 53. Then, the front frame 63 and the rear frame 64 are both moved towards each other, thereby pressing the glass sheets 52 and 53 against the string 35 of sealant which is on the lands 26 and 27. The movement of the frames 63 and 64 is thereby cushioned by the pneumatic cylinder 71 of the punches 70, 70a, which provide for a pressing of the glass sheets 52, 53 to the webs 26 and 27 of the frame 51 with a predetermined pressure, see FIG. 18 ,

This is the window sash assembled. The pneumatic cylinders of the punches 70, 70a and the adjusting device 72 retract their piston rods, the suckers 78, 85 and 86 are deactivated and withdrawn, the three-track horizontal conveyor 62 is restored to the original level, which coincides with the level of the horizontal conveyor in the preparation station 36 coincides, raised and the sash is conveyed out of the assembly station 54 on a discharge conveyor 90. Here, if necessary, in the frame 51 in a conventional manner nor cover strips are used, which cover the edge of the glass panels 52 and 53.

If the insulating glass pane integrated into the window sash is to be filled with a heavy gas, this is done by bending the rear glass plate 53 outwards against the frame 51 by pressing the glass plate 53 against diagonally opposite corners - see FIG. 19 -, Wherein, by the access, which was produced by the suction 85, the heavy gas introduced and from the opening, which was produced by the sucker 86, air is displaced from the space between the two glass sheets 52 and 53. If a sufficiently high degree of filling of the heavy gas is achieved, the suckers 85 and 86 are deactivated, whereby the openings due to the elastic resilience Close the glass panels 52 and 53 readily and be closed by the action of the pneumatically operated punch 70, 70 a. FIG. 19 shows in detail the access 91 at a lower corner of the sash with the attached seal 87 and a portion of the porous feed line 88 through which the heavy gas is supplied, and between the seal 87 and the glass sheet 53 a portion of the elastomeric suction cup of the suction 85th

reference numerals

1

first horizontal conveyor

2

second horizontal conveyor

3

third horizontal conveyor

4

switch

5

section

6

Washing and drying machine

7

section

8th

section

9

roll

10

retaining wall

11

Section of 2

12

Section of 2

13

Section of 2

14

Section of 2

15

Section of 2

16

conveyor belts

17

retaining wall

18

guide rollers

19

guide rollers

20

Plant for injecting an adhesive

21

Plastic hollow profile

22

Outside of 21

23

Inside of 21

24

Flank of 21

25

Flank of 21

26

web

27

web

28

head Start

29

Adhesive with embedded desiccant

30

jet

31

Plant for applying sealant

32

jet

33

jet

34

slot

35

Strand of sealing compound

36

preparation station

37

undercarriage

38

rails

39

frame

40

post

41

bar

42

bar

43

bar

44

support rollers

45

three-lane horizontal conveyor

46

carrier

47

conveyor belts

48

conveyor belts

49

conveyor belts

50

support rollers

51

frame

52

rear glass panel

53

front glass panel

54

assembly station

55

undercarriage

56

rails

57

fixed frame

58

bar

59

bar

60

bar

61

Support elements (support rollers)

62

three-lane horizontal conveyor

63

front frame

64

rear frame

65

Posts of 63 and 64 respectively

66

guide parts

67

traverse

68

toothed belt

69

engine

70

stamp

70a

stamp

71

Pressure medium cylinder (pneumatic cylinder)

72

adjusting

73

pneumatic cylinder

74

piston rod

75

Head of 74

76

Groin, arm

77

lower crossbar

78

sucker

79

upper crossbar

80

upright crossbar

81

toothed belt

82

engine

83

pusher

84

concertina

85

lower sucker

86

upper sucker

87

poetry

88

supply

89

pneumatic cylinder

90

exit conveyor

91

Access

Claims (11)

1. A device for assembling window sashes comprising an integrated insulating glass pane, the window sash having a frame (51) formed from plastic hollow profiles (21) comprising an inner face (23), an outer face (22) facing away from the inner face (23), and two flanks (24, 25), which connect the inner face (23) and the outer face (22) to each other, wherein the frame (51), on the inner face (23) thereof, has two webs (26, 27), which are parallel to each other, which constitute an all-around delimitation of the window opening of the window sash and which are adhesively secured to two glass plates (52, 53), which are held spaced apart by means of the two webs (26, 27),

   - with a horizontal conveyor (62), which is provided on an underframe (55) so as to be height-adjustable,

   - with a framework (57), which is attached to the underframe (55) and which projects upwards from the underframe (55), to which at least three rows of support elements (61), which are located next to one another, are attached above the horizontal conveyor (62) and parallel to it, said support elements (61) being height-adjustable and arranged such that they can support and guide glass plates (52, 53) conveyed on the horizontal conveyor (62) and frames (51) in vertical position or in a position, which is inclined backwards by a few degrees,

   - with a front framework (63), which is supported in front of the horizontal conveyor (62) on the underframe (55) and which is embodied in a frameshaped manner and which can be displaced transversely to the horizontal conveyor (62) on the underframe (55),

   - with a rear framework (64), which is arranged behind the horizontal conveyor (62) on the underframe (55) and which is embodied in a frameshaped manner and which can be displaced transversely to the horizontal conveyor (62) on the underframe (55),

   - wherein a horizontal traverse (67) and a vertical traverse (80) are so supported at the front framework (63) as well as at the rear framework (64), that the horizontal traverse (67) is capable of being displaced up and down and that the vertical traverse (80) is capable of being displaced horizontally,

   - with punches (70, 70a), which are attached to a stationary lower traverse (77), to the displaceable horizontal traverse (67), to the displaceable vertical traverse (80) and to a post (65) of the front framework (63) and of the rear framework (64), which posts (65) project upward parallel to the vertical traverse (80) and which punches (70, 70a) can be displaced transversely horizontally or inclined by a few degrees against the horizontal, respectively, in particular at right angles to the conveying direction of the horizontal conveyor (62), wherein the punches (70, 70a) attached to the front framework (63) can be pushed ahead in the direction to the rear framework (64) and the punches (70, 70a) provided at the rear framework (64) can be pushed ahead in the direction to the front framework (63),

   - and with suction devices (78, 85, 86), which are provided at the front framework (63) as well as at the rear framework (64) and wherein the suction devices (78, 85, 86) attached to the front framework (63) face the rear frame work (64), while the suction devices (78, 85, 86) provided at the rear framework (64) face the front framework (63).
2. A device according to claim 1, characterized in that the horizontal conveyor (62) is a three-track horizontal conveyor (62).
3. A device according to claim 2, characterized in that the three-track horizontal conveyor (62) has three conveyor belts (47, 48 and 49), which are located next to one another, the upper runs of which are located in a common plane.
4. A device according to claim 1, 2 or 3, characterized in that the support elements (61) are free-running rollers, the axes of which are arranged vertically or inclined backwards by a few degrees against the vertical, respectively.
5. A device according to any one of the preceding claims, characterized in that, in the case of the front framework (63) as well as in the case of the rear framework (64), a part of the punches (70, 70a) is mounted on slides (83), one of which can in each case be displaced longitudinally on the fixed lower traverse (77), one on the movable horizontal traverse (77), one on the movable vertical traverse (80) and one on the vertical post (65) of the framework (63, 64), which vertical post (65) is located opposite to the vertical traverse (80), and wherein each one of the said slides (83) tows a slidable lattice grate (84), which changes its expansion due to the displacement movement and to which further punches (70a) are attached, the distance of which relative to one another and the distance of which from the punches (70) mounted on the respective slide (83) changes due to the movement of the slide (83).
6. A device according to any one of the preceding claims, characterized in that provision is made at the movable horizontal traverse (67) of the front framework (63) as well as of the rear framework (64) for adjusting devices (72), which have arms (76), in particular in the shape of bars, which can be pushed forward from the displaceable horizontal traverse (67) of the front framework (63) transversely to the conveying direction of the horizontal conveyor (62) in the direction of the opposite rear framework (64), whereas the adjusting devices (72), which are provided at the displaceable horizontal traverse (67) of the rear framework (64), can push their arms (76) forward transversely to the conveying direction of the horizontal conveyor (62) in the direction of the opposite front framework (63).
7. A device according to claim 6, characterized in that the adjusting devices (72) can be activated individually, in particular by means of pneumatic cylinders (73).
8. A device according to any one of the preceding claims, characterized in that the punches (70, 70a) can be activated individually, in particular by means of pneumatic cylinders (71).
9. A device according to any one of the preceding claims, characterized in that the suction devices (78, 85, 86) can be activated individually, in particular by means of pneumatic cylinders (89).
10. A device according to any one of the preceding claims, characterized in that provision is made either at the front framework (63) or at the rear framework (64) for suction devices (85, 86), which are oriented against the opposite framework (64, 63), and by means of which an adjacent glass plate (53), which stands on the horizontal conveyor (62), can be sucked and can be bent backwards, that is, away from the opposite glass plate (52), at two corners, which are located diagonally opposite to one another.
11. A device according to claim 10, characterized in that a feed line (88), through which a heavy gas can be introduced into the space between the two glass plates (52, 53), is assigned to the lower suction device (85), namely through the access (91) to the interior, which is formed by bending away the glass plate (53) in the area of the lower suction device (85).

Images