EP3375968B1 - Viewing window for rlt installations and air-conditioner housing - Google Patents

Viewing window for rlt installations and air-conditioner housing Download PDF

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Publication number
EP3375968B1
EP3375968B1 EP18161047.8A EP18161047A EP3375968B1 EP 3375968 B1 EP3375968 B1 EP 3375968B1 EP 18161047 A EP18161047 A EP 18161047A EP 3375968 B1 EP3375968 B1 EP 3375968B1
Authority
EP
European Patent Office
Prior art keywords
viewing
fastening means
pane
viewing window
spiral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18161047.8A
Other languages
German (de)
French (fr)
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EP3375968A1 (en
Inventor
Thorsten Kuhnke
Michael Backhaus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EMKA Beschlagteile GmbH and Co KG
Original Assignee
EMKA Beschlagteile GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by EMKA Beschlagteile GmbH and Co KG filed Critical EMKA Beschlagteile GmbH and Co KG
Priority to PL18161047T priority Critical patent/PL3375968T3/en
Publication of EP3375968A1 publication Critical patent/EP3375968A1/en
Application granted granted Critical
Publication of EP3375968B1 publication Critical patent/EP3375968B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/54—Fixing of glass panes or like plates
    • E06B3/58—Fixing of glass panes or like plates by means of borders, cleats, or the like
    • E06B3/5892—Fixing of window panes in openings in door leaves
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
    • E06B7/30—Peep-holes; Devices for speaking through; Doors having windows
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/04—Wing frames not characterised by the manner of movement
    • E06B3/26—Compound frames, i.e. one frame within or behind another
    • E06B3/2605—Compound frames, i.e. one frame within or behind another with frames permanently mounted behind or within each other, each provided with a pane or screen

Definitions

  • the present invention relates to a viewing window for insertion into a viewing opening, in particular a viewing opening of an HVAC system and / or a climatic chamber, according to the preamble of patent claim 1.
  • HVAC systems room, air and technical systems
  • climatic chambers are equipped with a wide variety of machines, systems, system parts, units, etc. for various applications.
  • air conditioning systems or climatic chambers usually have a closed system housing, in which different operating or climatic conditions can prevail, which in some cases differ significantly from the environmental conditions outside the system housing.
  • the walls of the system housing of such HVAC systems and climatic chambers are generally pressure-tight and also heat-insulated.
  • viewing openings with viewing windows inserted therein are provided at certain points in the system housing, which in practice are often designed like portholes.
  • These viewing windows usually have two panes, of which a first pane is arranged on the inside and a second pane on the outside of the viewing opening, resulting in a type of double glazing with good thermal insulation properties.
  • a first pane is arranged on the inside and a second pane on the outside of the viewing opening, resulting in a type of double glazing with good thermal insulation properties.
  • panes are usually arranged on pane carriers, which are inserted into the viewing opening from opposite directions and mounted there.
  • the processes involved in installing the viewing window are therefore such that a pane support is inserted from the inside and a pane support from the outside into the view opening.
  • a plurality of screw bolts distributed over the circumference of the two disk carriers are inserted through corresponding openings and the two disk carriers are braced against one another by actuating the screw bolts.
  • Seals arranged on the pane carriers are compressed so that the operating conditions prevailing on the climate side in the region of the viewing window are not impaired.
  • Such a window is out DE20200817183U known.
  • the document US4525961 describes a rectangular viewing window, with the pane supports attached to each other by means of a snap-in connection JP0663787U and US177432 reveal peepholes with two pane supports that are screwed together.
  • the two pane supports can be fastened in the viewing opening in a manner which is easy to assemble.
  • the two pane supports can be inserted into the viewing opening and then attached by means of a relative movement.
  • Additional fasteners, such as bolts, are not required for fastening, which is why not only is assembly significantly simplified, but also a smaller number of sealing points required and thus a reduced risk of leakage.
  • the pane carriers have a window frame which receives a window pane and a fastening section on which the fastening means are arranged.
  • the window frame receiving the window pane and the fastening section can be angled with respect to one another and in particular can run at right angles to one another.
  • the window frame can be designed in the manner of a flange-shaped collar and the fastening section in the manner of a tubular connecting piece. Due to the arrangement of the fastening means on the fastening section of the pane carrier, the pane carrier has a dual function in that it serves not only as a carrier for the pane, but also immediately as a fastening means for fastening the pane carrier in the viewing opening.
  • a design that is advantageous in terms of production technology provides that the window frame and the fastening section are connected to one another in one piece.
  • the disk carrier can be manufactured in one piece in a technically advantageous manner, for example in a plastic injection molding process.
  • the entire pane support can be made of a transparent material and the viewing pane can also be integrally formed on the pane support.
  • a multi-piece design of the window frame and the actuating section is also conceivable, in particular a two-piece design, in which the window frame is made of a transparent material and the fastening section is made of an opaque material.
  • the non-transparent fastening section can protrude into the viewing opening and in this way close the inner circumferential surface thereof from views from the outside. This offers the advantage that when checking a unit, for example within an air conditioning system, the controller does not point to the inside of the wall of the air conditioning system provided filling, for example a glass fiber material or a similar insulation material.
  • a further embodiment provides that the fastening sections are designed such that when they are inserted into the viewing opening they form a collar covering the inner surface of the viewing opening.
  • the inner areas of the wall section of the viewing opening surrounding the viewing opening are covered. In this respect, there is no fear that material from this area, such as an insulating material or similar materials, will get into the viewing opening, where these could impair the view.
  • the window frames be designed such that they can be tensioned against an end edge of the viewing opening by actuating the fastening means.
  • the resulting clamping force can also serve to compress a seal surrounding the front edge of the viewing opening. This results in a gas-tight contact of the window frame on the inside or outside of the housing wall in the area of the viewing opening.
  • fastening means it has proven to be advantageous if they are designed in the manner of screw, bayonet and / or latching connection means, screw connection means having proven to be particularly simple and easy to assemble.
  • the fastening means can be actuated by a relative rotation of the disk carrier.
  • the disk carrier can first be inserted into the viewing opening and then rotated against one another.
  • the pane carriers can be moved towards one another in the axial direction and with their window frames while compressing a sealing element provided there be pressed against the front edges of the viewing opening.
  • An embodiment is particularly advantageous in which the fastening means of the pane carrier are of spiral design, at least in sections.
  • the fastening means of the one disk carrier can be designed in the manner of a threaded spindle.
  • the disc carrier can be connected to the other disc carrier in the manner of a screw.
  • the fastening means are formed by several, in particular three, separate spiral turning sections.
  • the spiral spiral sections can be adapted to the wall thicknesses of various system housings. Depending on the thickness of the wall or the wall thickness in the area of the viewing opening, one of these spiral turning sections can be used for fastening.
  • the spiral coil sections are therefore designed as a wall thickness adjustment. Three separate spiral coil sections need not necessarily be provided. Solutions are also conceivable in which four, five, six or more spiral turning sections are provided. Depending on the number of spiral spiral sections, the viewing window can be used for a corresponding number of different wall thicknesses in the area of the viewing opening.
  • the spiral coil sections for inserting the viewing window in different viewing openings are arranged at a distance from one another in its insertion directions. Use the different distances of the spiral spiral sections in different system housings with different wall thicknesses.
  • the invention provides if these fastening means are designed to engage the spiral-shaped fastening means of the other pane carrier.
  • These fastening means can also be designed in the manner of a spiral or a spiral section.
  • the first disk carrier in its fastening section can be designed in the manner of a screw bolt and the second in the disk carrier in the region of its fastening section in the manner of a nut. The two disc carriers can then be screwed together in the usual way.
  • fastening means are of spiral design, at least in sections.
  • the spiral shapes of the fastening means of the two disk carriers can be designed to correspond to one another.
  • the fastening means are designed in the manner of tabs which engage the spiral-shaped fastening means of the other pane carrier.
  • the tabs can be approximated to a corresponding spiral helix and locked there by a short, mostly less than 360 ° rotary movement.
  • a plurality of fasteners are provided distributed over the circumference of the disc carrier for a uniform force distribution.
  • two fastening means can be provided on opposite sides of the fastening section. It is even more advantageous to provide a total of four fastening means which are distributed uniformly over the circumference.
  • solutions with six, eight or even more such fastening elements are also conceivable.
  • the spiral helical gates have insertion openings for inserting the fastening means.
  • the fastening means can first be pushed as far as possible into the insertion openings and then brought into engagement with the spiral helix provided there. It is not necessary to first completely run through a spiral having several turns, as is the case with a conventional screw connection. Rather, the fastening means can be transferred along the insertion openings in the manner of a bypass directly to a suitable spiral spiral or a suitable spiral spiral section. This also simplifies assembly.
  • a further assembly-friendly embodiment provides that the insertion openings have an insertion bevel at their insertion end, which simplifies the insertion of the fastening means, in particular in the case of unfavorable visibility conditions.
  • a further embodiment provides a reverse rotation lock to secure the disk carriers in their fastened position within the viewing opening.
  • the anti-rotation device can be used to prevent turning back and thus unwanted loosening and impairment of the climatic conditions in a system housing, for example an HVAC system in the area of the viewing window, as can occur, for example, in industrial production due to vibration of machines and similar effects.
  • the anti-rotation device can be secured, for example, by a screw securing the window frame of the window support against the wall of the housing and / or a window window of the window support the positive locking element securing the wall of the housing can be provided.
  • At least one additional anti-rotation lock is provided, which can always be used when the actual anti-rotation lock has already been used and it cannot be used again. Even more advantageously, at least three additional anti-rotation locks are provided.
  • Fig. 1 shows a highly schematic view of a system housing 20.
  • the system housing 20 can be the housing of an HVAC system or the housing of a climatic chamber, as is widely used in the industrial sector for various applications.
  • Various machines, systems, system parts, units and the like can be arranged via a door 21.
  • Operating conditions prevail in the interior of the system housing 20, which usually differ in terms of pressure and temperature from the ambient conditions prevailing outside the system housing 20. For this reason, in order to control the devices arranged in the system housing 20, it is not possible to simply open the door 21 and to inspect it. Because opening the door 21 would affect the operating conditions within the device housing 20, which is not desirable in many cases.
  • the exemplary embodiment according to FIG Fig. 1 two viewing windows 1 are provided, each provided with panes and in the manner of portholes allow a view of the systems and machines housed inside the device housing 20 without the door 21 having to be opened.
  • the viewing window 1 is of cylindrical geometry and is inserted into an approximately cylindrical viewing opening 2 within a housing wall 22 of the system housing 20.
  • the housing wall 22 can be the part of a door 21, a wall or the ceiling of the system housing 20.
  • the viewing window 1 is composed of two parts.
  • One part of the viewing window 1 is formed by a pane support 3 which is inserted into the viewing opening 2 from the inside, that is to say the climate side, of the installation housing 20 along the direction R 1 .
  • the second part of the viewing window 1 is formed by a further pane support 4, which is inserted into the viewing opening 2 along the direction R 2 from the outside of the system housing 20.
  • the housing wall 22 of the system housing 20 can be, for example, a system wall formed from metallic surfaces and an insulating material arranged in between, which is provided with the viewing opening 2 designed in the manner of a through hole.
  • the viewing window 1 is inserted in a gas-tight manner in the viewing opening 2 of the housing wall 22 in a manner that is easy to assemble and leak-proof with few sealing points.
  • sealing elements 17, 18 are provided on both sides of the housing wall, which are between a circumferential Collar of the disc carrier 3, 4 and the opposite edge 2.2 of the viewing opening 2 are braced.
  • the climate-side sealing element 18 has a round cross section and the outside sealing element 17 has a rectangular cross section, wherein other cross sections would also be conceivable.
  • Both sealing elements 17, 18 are of annular geometry and extend along the edge 2.2 of the viewing opening 2 around it.
  • the pane support 3 is designed like a lid and carries a window pane 11 made of optically transparent material.
  • a window frame 7 surrounding the window pane 11 is provided for fastening the window pane 11 to the pane carrier 3.
  • a fastening section 9 with a smaller diameter is connected to the window frame 7.
  • the fastening section 9 is of tubular geometry and, in the exemplary embodiment, is integrally connected to the window frame 7.
  • both the window pane 11 and the window frame 7 surrounding it, as well as the fastening section 9 are made of an optically transparent material and in particular a plastic material.
  • the disk carrier 3 would be made from two pieces.
  • the advantage of the non-transparent area 9 would be that it would not be possible for an observer to look diagonally through the viewing window 1 over the inner circumferential surface 2.1 of the viewing opening 2 into the interior of the housing wall 22, where for example a mineral insulating material is located.
  • the pane carrier 3 has a fastening means 5 which is designed such that it interacts with a corresponding fastening means 6 of the other pane carrier 4 as a result of a relative movement of the two fastening means 5, 6.
  • the fastener 5 is formed by two radially inwardly projecting tabs. It can also be used more tabs than fasteners 5. It would also be conceivable to use tabs with a more spiral shape. The tabs can also be made longer or shorter. It is important that these are suitable to enter a spiral of the other fastening means 6 and to fasten the pane supports 3, 4 in the viewing opening 2.
  • Fig. 4 shows the other disk carrier 4 in a perspective view.
  • the pane support 4 has a window pane 12 made of transparent material.
  • the window pane 12 is surrounded by a window frame 8, to which a fastening section 10 connects.
  • the configuration of the disc carrier 4 is the same as that of the disc carrier 3.
  • the pane support 4 can also be made from one piece in a transparent material or the fastening area 10 can be made as a separate piece from an opaque material.
  • the fastening elements 6 are formed by spiral or partially spiral elements which are arranged on the circumference of the cylindrical fastening section 10.
  • the fastening elements 6 are formed by a total of three spiral turning sections 6.1, 6.2 and 6.3, which point in the direction of the mounting axis M of the viewing window 1 are arranged offset from one another. Basically, a single such spiral spiral section 6.1, 6.2 or 6.3 would be sufficient for mounting the viewing window 1.
  • a plurality of spiral spiral sections creates a possibility for quickly adapting the viewing window to different wall thicknesses of the housing wall 22, which will be explained in more detail below.
  • spiral turning sections 6.1, 6.2 and 6.3 are not continuous, but are provided on two opposite sides corresponding to the number of fasteners 5 of the other disk carrier 3 with an insertion opening 13 into which the fastening means 5 of the other disk carrier are inserted can.
  • the insertion openings have a channel-shaped cross section.
  • the insertion openings 13 are provided with an insertion bevel 14 on the insertion side.
  • FIG 8 to 11 The predecessor to the assembly of the two pane supports 3, 4 to form a common viewing window 1 is shown in FIG 8 to 11 illustrated.
  • the two pane supports 3, 4 are first moved towards each other along the mounting axis M from opposite directions R 1 , R 2 .
  • the tab-like fastening means 5 enter the area of the insertion opening 13 until the two pane supports 3, 4 with their window frames 7, 8 come to rest on the edge of the insertion opening 2 and a further axial movement is no longer possible.
  • the window frames 7, 8 form stops.
  • an anti-rotation device 19 arranged on the one disk carrier 13 interacts with a counter-contour on the housing wall 22 in such a way that the disk carrier 4 can no longer be rotated within the viewing opening 2.
  • the anti-rotation device 19 is on the climatic side Disc carrier 4 arranged.
  • the anti-rotation device 19 is formed by a form-locking element, which is arranged on the window frame 8 of the pane support 4 and interacts positively with a counter-structure on the housing wall 22.
  • the anti-rotation device 19 is formed by a projection and the counter structure on the housing wall 22 by a recess. Alternatively, however, it would also be possible for the anti-rotation device 19 to be formed by a recess and the counter structure on the housing wall 22 to be formed by a projection.
  • the one disc carrier 3 is moved relative to the other disc carrier 4 and thereby the fastening means 5 is actuated, i.e. the fastening means 5, 6 are brought into engagement with one another.
  • the relative movement is a relative rotation of the two disk carriers 3, 4, as a result of which these are connected to one another in a screw-like manner.
  • the disk support 4 is also prevented from rotating in the viewing opening 2 by the anti-rotation device 19.
  • the tab-like fastening elements 5 When the two disk carriers 3, 4 are rotated relative to one another, the tab-like fastening elements 5 first enter the area of the spiral sections 6.1, 6.2, 6.3, cf. also the representations in the 10 and 11 . Depending on how large the wall thickness of the housing wall 22 is, these optionally come into contact behind one of the spiral sections 6.1, 6.2 or 6.3. Upon further rotation, the corresponding spiral section 6.1, 6.2 or 6.3 exerts an axial force on the fastening element 5 due to its incline. As a result, the two disk carriers 3, 4 move in the axial direction, compensating for any manufacturing tolerances, towards the housing wall 22 until the sealing elements 17, 18 are sufficiently compressed and the viewing window is seated pressure-tight in the viewing opening.
  • a reverse rotation lock 15 is then produced, which ensures that the two disk carriers 3, 4 do not rotate relative to one another in the opposite direction during operation and the attachment can unintentionally loosen.
  • a bore can be provided for receiving a locking screw that can be screwed to the housing wall 22. Since it can happen over the lifetime of the viewing window that it may be disassembled, for example in the case of porous seals, and reinstalled after the insertion of new seals, in the exemplary embodiment a plurality of anti-rotation devices 16 are provided. In total, three additional anti-rotation safeguards 15 are provided for the actual anti-rotation lock 15, which are distributed approximately at 90 ° angular intervals around the circumference of the disk carrier 3, but more additional anti-rotation locks 16 can also be provided.
  • anti-rotation locks 16 can be used as an alternative to the anti-rotation lock 15, if this should be unsuitable in the case of a second installation of the viewing window 1, in particular due to an unfavorably positioned drill hole of the locking screw originally used in the housing wall 22.
  • a single spiral helix would be sufficient as the fastening element 6 for actuating the fastening means 5, 6.
  • three spiral coils 6.1, 6.2, 6.3 are provided, which serve as wall thickness compensation for different wall thicknesses of the housing wall 22 of the system housing 20 in the region of the viewing opening 2. This is shown in the illustrations in the Fig. 12-14 explained.
  • FIG. 12 a view of the assembled viewing window 1 in a viewing opening 2 of a comparatively thin housing wall 22 is shown.
  • the fastening means 5 of the pane carrier 3 are behind the spiral coil section 6.3 brought into contact with the other pane support 4, which is closest to the window frame 7 of the pane support 4, and secured there by twisting.
  • Fig. 13 shows an installation situation in a viewing opening 2 of a housing wall 22 of medium thickness, in which the fastening means 5 come to rest behind the central spiral helix section 6.2.
  • Fig. 14 finally shows an installation situation in which the fastening means 5 abut the spiral helix section 6.3, which is arranged at the front end of the fastening section 10.
  • the viewing window 1 can optionally be inserted into housing walls 22 of different thicknesses. For this purpose, it is not necessary to make any design changes to the viewing window 1.
  • the disk carrier 3 having the spiral-shaped fastening means forms a type of screw and the disk carrier 4 having the tab-like fastening elements 5 forms a type of nut.
  • Fig. 15 finally shows once again the processes when assembling a lens 1 in an exploded view, the two parts 3, 4 of Art a double-glazed porthole can be inserted into a housing wall 22 coming from two opposite directions.
  • fastening elements 5, 6 can be arranged on the fastening sections 9 and 10 of the two disk carriers 3, 4, which form a bayonet connection.
  • the fastening elements 5, 6 can also be designed in the manner of snap and locking elements, which are actuated by an axial relative movement of the two disk carriers 3, 4, i.e. snap together or have them detached from each other.
  • the two disk carriers 3, 4 are inserted into the viewing opening 1 of a device housing 20 in a pressure-tight and easy-to-assemble manner without additional fastening elements, in particular screw bolts and similar elements, and there by a relative movement, in particular a relative rotation or an axial relative movement , the two disc carriers 3, 4 can be attached pressure-tight.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Description

Die vorliegende Erfindung betrifft ein Sichtfenster zum Einsetzen in eine Sichtöffnung, insbesondere eine Sichtöffnung einer RLT-Anlage und/oder einer Klimakammer, gemäß dem Oberbegriff des Patentanspruchs 1.The present invention relates to a viewing window for insertion into a viewing opening, in particular a viewing opening of an HVAC system and / or a climatic chamber, according to the preamble of patent claim 1.

Vor allem im industriellen Bereich werden für verschiedene Anwendungen Raum- Luft- Technische- Anlagen (RLT-Anlagen) sowie Klimakammern mit unterschiedlichsten Maschinen, Anlagen, Anlagenteilen, Aggregaten usw. ausgestattet. Solche RLT-Anlagen oder Klimakammern weisen zumeist ein geschlossenes Anlagengehäuse auf, in welchem unterschiedliche Betriebs- oder Klimabedingungen herrschen können, die sich teilweise deutlich von den Umgebungsbedingungen außerhalb der Anlagengehäuse unterscheiden.Especially in the industrial sector, room, air and technical systems (HVAC systems) and climatic chambers are equipped with a wide variety of machines, systems, system parts, units, etc. for various applications. Such air conditioning systems or climatic chambers usually have a closed system housing, in which different operating or climatic conditions can prevail, which in some cases differ significantly from the environmental conditions outside the system housing.

Beispielsweise können im Inneren dieser Anlagengehäuse Bedingungen sowohl mit positivem als auch negativem Überdruck, verschiedenste Temperatur- und/oder Luftfeuchteverhältnisse usw. herrschen, weshalb die Wände der Anlagengehäuse solcher RLT-Anlagen und Klimakammern in der Regel druckdicht und auch wärmegedämmt ausgebildet sind.For example, inside the system housing there can be conditions with both positive and negative overpressure, a wide variety of temperature and / or air humidity conditions, etc., which is why the walls of the system housing of such HVAC systems and climatic chambers are generally pressure-tight and also heat-insulated.

Um daher beispielsweise eine im Inneren einer RLT-Anlage angeordnete Maschine von außerhalb deren Anlagengehäuses überwachen zu können, sind an bestimmten Stellen des Anlagengehäuses Sichtöffnungen mit darin eingesetzten Sichtfenstern vorgesehen, die in der Praxis häufig nach Art von Bullaugen ausgebildet sind.In order, for example, to be able to monitor a machine arranged inside an air-conditioning system from outside its system housing, viewing openings with viewing windows inserted therein are provided at certain points in the system housing, which in practice are often designed like portholes.

Diese Sichtfenster weisen zumeist zwei Scheiben auf, von denen eine erste Scheibe an der Innenseite und eine zweite Scheibe an der Außenseite der Sichtöffnung angeordnet wird, wodurch sich eine Art doppelte Verglasung mit guten Wärmedämmeigenschaften ergibt. Bei der Montage der Sichtfenster ergeben sich aufgrund der im Inneren der Anlagengehäuse herrschenden Betriebs- oder Klimabedingungen und insbesondere den dort herrschenden Druckverhältnissen besondere Anforderungen, da die Sichtfenster druckdicht in der zugehörigen Sichtöffnung des Anlagengehäuses montiert werden müssen.These viewing windows usually have two panes, of which a first pane is arranged on the inside and a second pane on the outside of the viewing opening, resulting in a type of double glazing with good thermal insulation properties. When installing the viewing window, there are special requirements due to the operating or climatic conditions inside the system housing and in particular the pressure conditions there, since the viewing window must be installed pressure-tight in the associated viewing opening of the system housing.

Aus diesem Grund werden die Scheiben zumeist an Scheibenträgern angeordnet, die aus entgegengesetzten Richtungen in die Sichtöffnung eingesetzt und dort montiert werden. Die Abläufe beim Montieren des Sichtfensters sind daher so, dass zunächst ein Scheibenträger von der Innenseite und ein Scheibenträger von der Außenseite her in die Sichtöffnung eingesetzt wird. Sodann werden zumeist mehrere über den Umfang der beiden Scheibenträger verteilt angeordnete Schraubbolzen durch entsprechende Öffnungen hindurch gesteckt und die beiden Scheibenträger durch Betätigung der Schraubbolzen gegeneinander verspannt. Durch das Verspannen werden an den Scheibenträgern angeordnete Dichtungen gestaucht, so dass die auf der Klimaseite herrschenden Betriebsbedingungen im Bereich des Sichtfensters nicht beeinträchtigt werden. Ein derartiges Sichtfenster ist aus DE20200817183U bekannt.For this reason, the panes are usually arranged on pane carriers, which are inserted into the viewing opening from opposite directions and mounted there. The processes involved in installing the viewing window are therefore such that a pane support is inserted from the inside and a pane support from the outside into the view opening. Then mostly a plurality of screw bolts distributed over the circumference of the two disk carriers are inserted through corresponding openings and the two disk carriers are braced against one another by actuating the screw bolts. By being braced Seals arranged on the pane carriers are compressed so that the operating conditions prevailing on the climate side in the region of the viewing window are not impaired. Such a window is out DE20200817183U known.

Als nachteilig bei dieser Art bekannter Sichtfenster hat es sich erwiesen, dass auch die Schraubbolzen sowohl auf der Außenseite als auch auf der Klimaseite zumeist eine separate, den Schraubbolzen umgebende Dichtung, beispielsweise eine O-Ring-Dichtung erfordern, so dass dort keine Leckageströme beispielsweise im Falle eines in der Klimakammer herrschenden Überdrucks entstehen. Insgesamt ergibt sich daher eine große Anzahl erforderlicher Dichtstellen und ein mit der Anzahl Dichtstellen steigendes Risiko etwaiger Leckagen. Ein weiteres Problem dieser Sichtfenster liegt darin, dass sich aufgrund der Vielzahl über den Umfang verteilt angeordneten Schraubbolzen ein vergleichsweiser hoher Montageaufwand beim Einsetzen des Sichtfensters in die Sichtöffnung ergibt.It has proven to be disadvantageous in this type of known viewing window that the screw bolts both on the outside and on the climate side usually require a separate seal surrounding the screw bolt, for example an O-ring seal, so that there are no leakage flows, for example in the If there is overpressure in the climate chamber. Overall, there is therefore a large number of required sealing points and an increasing risk of any leaks as the number of sealing points increases. Another problem with these viewing windows is that, due to the large number of screw bolts distributed over the circumference, there is a comparatively high outlay in terms of installation when the viewing window is inserted into the viewing opening.

Das Dokument US4525961 beschreibt einen rechteckigen Sichtfenster, wobei die Scheibenträger mittels einer Rastverbindung miteinander befestigt sind.Die Dokumente JP0663787U und US177432 offenbaren Türspionen mit zwei Scheibenträger die aneinander geschraubt sind.The document US4525961 describes a rectangular viewing window, with the pane supports attached to each other by means of a snap-in connection JP0663787U and US177432 reveal peepholes with two pane supports that are screwed together.

Ausgehend von einem solchen Sichtfenster ist es die Aufgabe der vorliegenden Erfindung, ein gleichsam montagefreundliches wie auch leckageunanfälliges Sichtfenster anzugeben.Starting from such a viewing window, it is the object of the present invention to provide a viewing window that is as easy to install as it is leak-proof.

Diese Aufgabe wird bei einem Sichtfenster der eingangs genannten Art mit den Merkmalen des Patentanspruchs 1 gelöst.This object is achieved in a window of the type mentioned by the features of claim 1.

Mit derartig angeordneten und ausgebildeten Befestigungsmitteln lassen sich die beiden Scheibenträger auf montagefreundliche Art und Weise in der Sichtöffnung befestigen. Die beiden Scheibenträger können in die Sichtöffnung eingesetzt und anschließend durch eine Relativbewegung befestigt werden. Zusätzliche Befestigungsmittel, wie etwa Schraubbolzen, werden zur Befestigung nicht benötigt, weshalb sich nicht nur ein eine deutlich vereinfachte Montage, sondern auch eine geringere Anzahl erforderlicher Dichtstellen und damit ein reduziertes Leckagerisiko ergibt.With such fasteners arranged and designed in this way, the two pane supports can be fastened in the viewing opening in a manner which is easy to assemble. The two pane supports can be inserted into the viewing opening and then attached by means of a relative movement. Additional fasteners, such as bolts, are not required for fastening, which is why not only is assembly significantly simplified, but also a smaller number of sealing points required and thus a reduced risk of leakage.

Eine vorteilhafte Ausgestaltung der Erfindung sieht vor, dass die Scheibenträger einen eine Fensterscheibe aufnehmenden Fensterrahmen und einen Befestigungsabschnitt aufweisen, an welchem die Befestigungsmittel angeordnet sind. Der die Fensterscheibe aufnehmende Fensterrahmen und der Befestigungsabschnitt können zueinander abgewinkelt und insbesondere zueinander rechtwinklig verlaufen. Beispielsweise kann der Fensterrahmen nach Art eines flanschförmigen Kragens und der Befestigungsabschnitt nach Art eines rohrförmigen Stutzens ausgebildet sein. Durch die Anordnung der Befestigungsmittel an dem Befestigungsabschnitt des Scheibenträgers kommt dem Scheibenträger eine Doppelfunktion zu, indem dieser nicht nur als Träger für die Scheibe, sondern sogleich auch als Befestigungsmittel zum Befestigen des Scheibenträgers in der Sichtöffnung dient.An advantageous embodiment of the invention provides that the pane carriers have a window frame which receives a window pane and a fastening section on which the fastening means are arranged. The window frame receiving the window pane and the fastening section can be angled with respect to one another and in particular can run at right angles to one another. For example, the window frame can be designed in the manner of a flange-shaped collar and the fastening section in the manner of a tubular connecting piece. Due to the arrangement of the fastening means on the fastening section of the pane carrier, the pane carrier has a dual function in that it serves not only as a carrier for the pane, but also immediately as a fastening means for fastening the pane carrier in the viewing opening.

Eine fertigungstechnisch vorteilhafte da einfache Ausgestaltung sieht vor, dass der Fensterrahmen und der Befestigungsabschnitt einstückig miteinander verbunden sind. Auf diese Weise lässt sich der Scheibenträger in fertigungstechnisch vorteilhafter Weise in nur einem Stück fertigen, beispielsweise in einem Kunststoff-Spritzgussverfahren. Bei einer solchen Ausgestaltung kann der gesamte Scheibenträger aus einem transparenten Material gefertigt sein und auch die Sichtscheibe einstückig an dem Scheibenträger angeformt sein. Alternativ ist auch eine mehrstückige Ausbildung des Fensterrahmens und des Betätigungsabschnitts denkbar, insbesondere eine zweistückige Ausbildung, bei welcher der Fensterrahmen aus einem transparenten Material besteht und der Befestigungsabschnitt aus einem blickdichten Material. Der nicht transparente Befestigungsabschnitt kann in die Sichtöffnung hineinragen und deren innere Mantelfläche auf diese Weise gegenüber Blicken von außen verschließen. Dies bietet den Vorteil, dass beim Kontrollieren eines Aggregats beispielsweise innerhalb einer RLT-Anlage der Kontrolleur nicht auf die im Inneren der Wand der RLT-Anlage vorgesehene Füllung, beispielsweise ein Glasfasermaterial oder einen ähnlichen Dämmstoff blicken kann.A design that is advantageous in terms of production technology provides that the window frame and the fastening section are connected to one another in one piece. In this way, the disk carrier can be manufactured in one piece in a technically advantageous manner, for example in a plastic injection molding process. In such an embodiment, the entire pane support can be made of a transparent material and the viewing pane can also be integrally formed on the pane support. Alternatively, a multi-piece design of the window frame and the actuating section is also conceivable, in particular a two-piece design, in which the window frame is made of a transparent material and the fastening section is made of an opaque material. The non-transparent fastening section can protrude into the viewing opening and in this way close the inner circumferential surface thereof from views from the outside. This offers the advantage that when checking a unit, for example within an air conditioning system, the controller does not point to the inside of the wall of the air conditioning system provided filling, for example a glass fiber material or a similar insulation material.

Eine weitere Ausgestaltung sieht vor, dass die Befestigungsabschnitte derart ausgebildet sind, dass diese beim Einsetzten in die Sichtöffnung einen die Innenfläche der Sichtöffnung abdeckenden Kragen bilden. Die inneren Bereiche des die Sichtöffnung umgebenden Wandabschnitts der Sichtöffnung werden abgedeckt. Es steht insoweit nicht zu befürchten, dass Material aus diesem Bereich, wie beispielsweise ein Dämmstoff oder ähnliche Materialien, in die Sichtöffnung gelangen, wo diese die Durchsicht beeinträchtigen könnten.A further embodiment provides that the fastening sections are designed such that when they are inserted into the viewing opening they form a collar covering the inner surface of the viewing opening. The inner areas of the wall section of the viewing opening surrounding the viewing opening are covered. In this respect, there is no fear that material from this area, such as an insulating material or similar materials, will get into the viewing opening, where these could impair the view.

Darüber hinaus wird vorgeschlagen, dass die Fensterrahmen derart ausgebildet sind, dass diese durch Betätigen der Befestigungsmittel gegen eine stirnseitige Kante der Sichtöffnung spannbar sind. Die resultierende Spannkraft kann auch zum Stauchen einer die stirnseitige Kante der Sichtöffnung umgebenden Dichtung dienen. Insoweit ergibt sich eine gasdichte Anlage des Fensterrahmens an der Innen- bzw. Außenseite der Gehäusewand im Bereich der Sichtöffnung.In addition, it is proposed that the window frames be designed such that they can be tensioned against an end edge of the viewing opening by actuating the fastening means. The resulting clamping force can also serve to compress a seal surrounding the front edge of the viewing opening. This results in a gas-tight contact of the window frame on the inside or outside of the housing wall in the area of the viewing opening.

Im Hinblick auf die Befestigungsmittel hat es sich als vorteilhaft erwiesen, wenn diese nach Art von Schraub-, Bajonett- und/oder Rastverbindungsmitteln ausgebildet sind, wobei sich Schraubverbindungsmittel als besonders einfach und montagefreundlich erwiesen haben.With regard to the fastening means, it has proven to be advantageous if they are designed in the manner of screw, bayonet and / or latching connection means, screw connection means having proven to be particularly simple and easy to assemble.

Erfindungsgemäß ist vorgesehen, dass die Befestigungsmittel durch eine Relativverdrehung der Scheibenträger betätigbar sind. Auf diese Weise können die Scheibenträger zunächst in die Sichtöffnung eingesetzt und sodann gegeneinander verdreht werden. Nach Art einer Schraubverbindung können die Scheibenträger in axialer Richtung aufeinander zu bewegt und mit deren Fensterrahmen unter Stauchung eines dort vorgesehenen Dichtelements gegen die stirnseitigen Kanten der Durchsichtöffnung gedrückt werden.According to the invention it is provided that the fastening means can be actuated by a relative rotation of the disk carrier. In this way, the disk carrier can first be inserted into the viewing opening and then rotated against one another. In the manner of a screw connection, the pane carriers can be moved towards one another in the axial direction and with their window frames while compressing a sealing element provided there be pressed against the front edges of the viewing opening.

Besonders vorteilhaft ist eine Ausgestaltung, bei welcher die Befestigungsmittel des Scheibenträgers zumindest abschnittsweise spiralförmig ausgebildet sind. Die Befestigungsmittel des einen Scheibenträgers können nach Art einer Gewindespindel ausgebildet sein. Der Scheibenträger kann nach Art einer Schraube mit dem anderen Scheibenträger verbunden werden.An embodiment is particularly advantageous in which the fastening means of the pane carrier are of spiral design, at least in sections. The fastening means of the one disk carrier can be designed in the manner of a threaded spindle. The disc carrier can be connected to the other disc carrier in the manner of a screw.

Eine weitere vorteilhafte Ausgestaltung sieht in diesem Zusammenhang vor, dass die Befestigungsmittel von mehreren, insbesondere drei, separaten Spiralwendeabschnitten gebildet werden. Die Spiralwendelabschnitte können an die Wandstäke verschiedener Anlagengehäuse angepasst sein. Je nach Dicke der Wand bzw. nach der Wandstärke im Bereich der Sichtöffnung kann eine dieser Spiralwendeabschnitte zur Befestigung genutzt werden. Die Spiralwendelabschnitte sind daher als Wandstärkenanpassung ausgebildet. Es müssen dabei nicht notwendigerweise drei separate Spiralwendelabschnitte vorgesehen sein. Denkbar sind auch Lösungen, bei denen vier, fünf, sechs oder mehr Spiralwendeabschnitte vorgesehen sind. In Abhängigkeit der Anzahl der Spiralwendelabschnitte kann das Sichtfenster für eine entsprechende Anzahl unterschiedlicher Wandstärken im Bereich der Sichtöffnung verwendet werden.A further advantageous embodiment provides in this connection that the fastening means are formed by several, in particular three, separate spiral turning sections. The spiral spiral sections can be adapted to the wall thicknesses of various system housings. Depending on the thickness of the wall or the wall thickness in the area of the viewing opening, one of these spiral turning sections can be used for fastening. The spiral coil sections are therefore designed as a wall thickness adjustment. Three separate spiral coil sections need not necessarily be provided. Solutions are also conceivable in which four, five, six or more spiral turning sections are provided. Depending on the number of spiral spiral sections, the viewing window can be used for a corresponding number of different wall thicknesses in the area of the viewing opening.

In diesem Zusammenhang wird weiter vorgeschlagen, dass die Spiralwendelabschnitte zum Einsetzten des Sichtfensters in verschiedene Sichtöffnungen in dessen Einsetzrichtungen gegeneinander beabstandet angeordnet sind. Über die unterschiedlichen Abstände der Spiralwendelabschnitte in verschiedene Anlagengehäuse mit unterschiedlichen Wandstärken einsetzen.In this context, it is further proposed that the spiral coil sections for inserting the viewing window in different viewing openings are arranged at a distance from one another in its insertion directions. Use the different distances of the spiral spiral sections in different system housings with different wall thicknesses.

Im Hinblick auf die Befestigungsmittel des einen Scheibenträgers ist erfindungsgemäß vorgesehen, wenn diese Befestigungsmittel an den spiralförmigen Befestigungsmitteln des anderen Scheibenträgers angreifend ausgebildet sind. Auch diese Befestigungsmittel können nach Art einer Spirale oder eines Spiralabschnitts ausgebildet sein. Beispielsweise kann der erste Scheibenträger in dessen Befestigungsabschnitt nach Art eines Schraubbolzens und der zweite im Scheibenträger im Bereich dessen Befestigungsabschnitts nach Art einer Mutter ausgebildet sein. Die beiden Scheibenträger können dann in üblicher Weise miteinander verschraubt werden.With regard to the fastening means of the one pane carrier, the invention provides if these fastening means are designed to engage the spiral-shaped fastening means of the other pane carrier. These fastening means can also be designed in the manner of a spiral or a spiral section. For example, the first disk carrier in its fastening section can be designed in the manner of a screw bolt and the second in the disk carrier in the region of its fastening section in the manner of a nut. The two disc carriers can then be screwed together in the usual way.

Vorteilhaft hat es sich ferner erwiesen, wenn die Befestigungsmittel zumindest abschnittsweise spiralförmig ausgebildet sind. Die Spiralformen der Befestigungsmittel der beiden Scheibenträger können zueinander korrespondierend ausgebildet sein.It has also proven to be advantageous if the fastening means are of spiral design, at least in sections. The spiral shapes of the fastening means of the two disk carriers can be designed to correspond to one another.

Ebenfalls hat es sich als vorteilhaft erwiesen, wenn die Befestigungsmittel nach Art von Laschen ausgebildet sind, die an den spiralförmigen Befestigungsmitteln des anderen Scheibenträgers angreifen. Die Laschen lassen sich entsprechend der Wandstärke im Bereich der Sichtöffnung an eine entsprechende Spiralwendel annähern und dort durch eine nur kurze, zumeist deutlich weniger als 360° betragende Drehbewegung arretieren.It has also proven to be advantageous if the fastening means are designed in the manner of tabs which engage the spiral-shaped fastening means of the other pane carrier. Depending on the wall thickness in the area of the viewing opening, the tabs can be approximated to a corresponding spiral helix and locked there by a short, mostly less than 360 ° rotary movement.

Erfindungsgemäß ist vorgesehen, dass für eine gleichmäßige Kraftverteilung mehrere über den Umfang des Scheibenträgers verteilt angeordnete Befestigungsmittel vorgesehen sind. Beispielsweise können zwei Befestigungsmittel auf gegenüber liegenden Seiten des Befestigungsabschnitts vorgesehen sein. Noch vorteilhafter können insgesamt vier gleichmäßig über den Umfang verteilt angeordnete Befestigungsmittel vorgesehen sein. Denkbar sind jedoch auch Lösungen mit sechs, acht oder noch mehr derartigen Befestigungselementen.According to the invention it is provided that a plurality of fasteners are provided distributed over the circumference of the disc carrier for a uniform force distribution. For example, two fastening means can be provided on opposite sides of the fastening section. It is even more advantageous to provide a total of four fastening means which are distributed uniformly over the circumference. However, solutions with six, eight or even more such fastening elements are also conceivable.

Weiterhin ist erfindungsgemäß vorgesehen, wenn die Spiralwendelanschnitte Einschuböffnungen zum Einschieben der Befestigungsmittel aufweisen. Auf diese Weise können die Befestigungsmittel zunächst bis zum Anschlag in die Einschuböffnungen eingeschoben und dann mit der dort vorgesehen Spiralwendel in Eingriff gebracht werden. Es ist nicht erforderlich, zunächst eine mehrere Windungen aufweise Spiralwendel vollständig zu durchlaufen, wie dies bei einer herkömmlichen Schraubverbindung der Fall ist. Vielmehr können die Befestigungsmittel entlang der Einschuböffnungen nach Art eines Bypasses direkt zu einer geeigneten Spiralwendel bzw. einem geeignetem Spiralwendeabschnitt überführt werden. Auch dies vereinfacht die Montage.Furthermore, it is provided according to the invention if the spiral helical gates have insertion openings for inserting the fastening means. In this way, the fastening means can first be pushed as far as possible into the insertion openings and then brought into engagement with the spiral helix provided there. It is not necessary to first completely run through a spiral having several turns, as is the case with a conventional screw connection. Rather, the fastening means can be transferred along the insertion openings in the manner of a bypass directly to a suitable spiral spiral or a suitable spiral spiral section. This also simplifies assembly.

Eine weitere montagefreundliche Ausgestaltung sieht in diesem Zusammenhang vor, dass die Einschuböffnungen an deren Einschubende eine Einführschräge aufweisen, was das Einführen der Befestigungsmittel vereinfacht, insbesondere im Falle ungünstiger Sichtverhältnisse.In this context, a further assembly-friendly embodiment provides that the insertion openings have an insertion bevel at their insertion end, which simplifies the insertion of the fastening means, in particular in the case of unfavorable visibility conditions.

Eine weitere Ausgestaltung sieht eine Rückdrehsicherung zur Sicherung der Scheibenträger in deren befestigter Stellung innerhalb der Sichtöffnung vor. Über die Rückdrehsicherung kann ein Zurückdrehen und damit ein ungewolltes Lösen und eine Beeinträchtigung der Klimaverhältnisse in einem Anlagengehäuse beispielsweise einer RLT-Anlage im Bereich des Sichtfensters vermieden werden, wie diese beispielsweise in der industriellen Produktion durch Vibration von Maschinen und ähnliche Effekte auftreten kann. Die Rückdrehsicherung kann beispielsweise von einer den Fensterrahmen des Scheibenträgers gegenüber der Wand des Gehäuses sichernden Schraube und/oder einem den Fensterrahmen des Scheibenträgers gegenüber der Wand des Gehäuses sichernden Formschlusselement bereitgestellt werden.A further embodiment provides a reverse rotation lock to secure the disk carriers in their fastened position within the viewing opening. The anti-rotation device can be used to prevent turning back and thus unwanted loosening and impairment of the climatic conditions in a system housing, for example an HVAC system in the area of the viewing window, as can occur, for example, in industrial production due to vibration of machines and similar effects. The anti-rotation device can be secured, for example, by a screw securing the window frame of the window support against the wall of the housing and / or a window window of the window support the positive locking element securing the wall of the housing can be provided.

Vorteilhafterweise ist zumindest eine zusätzliche Rückdrehsicherung vorgesehen, die immer dann genutzt werden kann, wenn die eigentliche Rückdrehsicherung bereits genutzt wurde und eine nochmalige Nutzung nicht möglich ist. Noch vorteilhafter sind zumindest drei zusätzliche Rückdrehsicherungen vorgesehen.Advantageously, at least one additional anti-rotation lock is provided, which can always be used when the actual anti-rotation lock has already been used and it cannot be used again. Even more advantageously, at least three additional anti-rotation locks are provided.

Weitere Einzelheiten und Vorteile der vorliegenden Erfindung werden nachfolgend unter zu Hilfenahme eines in den Figuren dargestellten Ausführungsbeispiels erläutert werden. Darin zeigen:

Fig. 1
in stark schematisierter Ansicht eines Anlagengehäuses einer RLT-Anlage oder einer Klimakammer mit zwei Sichtfenstern,
Fig. 2
eine vergrößerte Ansicht eines der beiden Sichtfenster,
Fig. 3 u. 4
perspektivische Ansichten der beiden Scheibenträger des Sichtfensters aus Fig. 2,
Fig. 5 bis 7
verschiedene Ansichten eines der beiden Scheibenträger,
Fig. 8
eine perspektivische Ansicht der beiden Scheibenträger im montiertem Zustand,
Fig. 9
eine der Darstellung in Fig. 8 entsprechende Darstellung des Sichtfensters in seitlicher Ansicht,
Fig. 10 u. 11
perspektivische Ansicht eines Sichtfensters zur Veranschaulichung der Vorgänge beim Befestigen in des Sichtfensters in der Sichtöffnung,
Fig. 12 bis 14
perspektivische Ansichten zur Veranschaulichung der Wandstärkenanpassung des erfindungsgemäßen Sichtfensters und
Fig. 15
eine Explosionsansicht des Sichtfensters.
Further details and advantages of the present invention are explained below with the aid of an embodiment shown in the figures. In it show:
Fig. 1
in a highly schematic view of a system housing of an HVAC system or a climatic chamber with two viewing windows,
Fig. 2
an enlarged view of one of the two viewing windows,
Fig. 3 u. 4th
perspective views of the two pane supports of the viewing window Fig. 2 ,
5 to 7
different views of one of the two disc carriers,
Fig. 8
a perspective view of the two disc carriers in the assembled state,
Fig. 9
one of the representation in Fig. 8 corresponding representation of the viewing window in a side view,
Fig. 10 u. 11
perspective view of a viewing window Illustration of the processes when fastening in the viewing window in the viewing opening,
12 to 14
Perspective views to illustrate the wall thickness adjustment of the viewing window according to the invention and
Fig. 15
an exploded view of the viewing window.

Fig.1 zeigt in stark schematisierter Ansicht ein Anlagengehäuse 20. Bei dem Anlagengehäuse 20 kann es sich um das Gehäuse einer RLT-Anlage oder das Gehäuse einer Klimakammer handeln, wie diese im industriellen Bereich für verschiedene Anwendungen weitläufig verwendet werden. Fig. 1 shows a highly schematic view of a system housing 20. The system housing 20 can be the housing of an HVAC system or the housing of a climatic chamber, as is widely used in the industrial sector for various applications.

Im Inneren des Anlagengehäuses 20, welches beim Ausführungsbeispiel gemäß Fig. 1 über eine Tür 21 begehbar ist, können verschiedene Maschinen, Anlagen, Anlagenteile, Aggregate und ähnliches angeordnet werden. Im Inneren des Anlagengehäuses 20 herrschen Betriebsbedingungen, die sich zumeist hinsichtlich Druck- und Temperatur von den außerhalb des Anlagengehäuses 20 herrschenden Umgebungsbedingungen unterscheiden. Aus diesem Grund ist es zur Kontrolle der in dem Anlagengehäuse 20 angeordneten Vorrichtungen nicht möglich, einfach die Tür 21 zu öffnen und diese zu inspizieren. Denn durch Öffnen der Tür 21 würden die Betriebsbedingungen innerhalb des Gerätegehäuses 20 beeinträchtigt, was in vielen Fällen nicht gewünscht ist.Inside the system housing 20, which according to the exemplary embodiment Fig. 1 Various machines, systems, system parts, units and the like can be arranged via a door 21. Operating conditions prevail in the interior of the system housing 20, which usually differ in terms of pressure and temperature from the ambient conditions prevailing outside the system housing 20. For this reason, in order to control the devices arranged in the system housing 20, it is not possible to simply open the door 21 and to inspect it. Because opening the door 21 would affect the operating conditions within the device housing 20, which is not desirable in many cases.

Um daher beispielsweise eine im Inneren des Anlagengehäuses 20 angeordnete Maschine von außerhalb des Anlagengehäuses 20 überwachen zu können, sind beim Ausführungsbeispiel gemäß Fig. 1 zwei Sichtfenster 1 vorgesehen, die jeweils mit Scheiben versehen sind und nach Art von Bullaugen einen Blick auf die im Inneren des Gerätegehäuses 20 untergebrachten Anlagen und Maschinen erlauben, ohne dass hierzu die Tür 21 geöffnet werden muss.Therefore, in order to be able to monitor, for example, a machine arranged inside the system housing 20 from outside the system housing 20, the exemplary embodiment according to FIG Fig. 1 two viewing windows 1 are provided, each provided with panes and in the manner of portholes allow a view of the systems and machines housed inside the device housing 20 without the door 21 having to be opened.

Einzelheiten der Sichtfenster 1 werden nachfolgend anhand der Darstellungen in den Fig. 2 bis 15 im Einzelnen erläutert werden.Details of the viewing window 1 are described below with reference to the representations in FIGS 2 to 15 are explained in detail.

Wie die Darstellung in Fig. 2 erkennen lässt, ist das Sichtfenster 1 von zylindrischer Geometrie und in eine in etwa zylindrische Sichtöffnung 2 innerhalb einer Gehäusewand 22 des Anlagengehäuses 20 eingesetzt. Bei der Gehäusewand 22 kann es sich um den Teil einer Tür 21, eine Wand oder auch die Decke des Anlagengehäuses 20 handeln.As shown in Fig. 2 can be seen, the viewing window 1 is of cylindrical geometry and is inserted into an approximately cylindrical viewing opening 2 within a housing wall 22 of the system housing 20. The housing wall 22 can be the part of a door 21, a wall or the ceiling of the system housing 20.

Wie die Darstellung in Fig. 2 weiter erkennen lässt, ist das Sichtfenster 1 aus zwei Teilen zusammengesetzt. Der eine Teil des Sichtfensters 1 wird gebildet von einem Scheibenträger 3, der von der Innenseite, also der Klimaseite, des Anlagengehäuses 20 entlang der Richtung R1 in die Sichtöffnung 2 eingesetzt wird. Der zweite Teil des Sichtfensters 1 wird gebildet von einem weiteren Scheibenträger 4, welcher entlang der Richtung R2 von der Außenseite des Anlagengehäuses 20 in die Sichtöffnung 2 eingesetzt wird.As shown in Fig. 2 can be seen further, the viewing window 1 is composed of two parts. One part of the viewing window 1 is formed by a pane support 3 which is inserted into the viewing opening 2 from the inside, that is to say the climate side, of the installation housing 20 along the direction R 1 . The second part of the viewing window 1 is formed by a further pane support 4, which is inserted into the viewing opening 2 along the direction R 2 from the outside of the system housing 20.

Bei der Gehäusewand 22 des Anlagengehäuses 20 kann es sich beispielsweise um eine aus metallischen Oberflächen und einem dazwischenliegend angeordneten Dämmstoff gebildete Anlagenwand handeln, welche mit der nach Art eines Durchgangslochs ausgebildeten Sichtöffnung 2 versehen ist.The housing wall 22 of the system housing 20 can be, for example, a system wall formed from metallic surfaces and an insulating material arranged in between, which is provided with the viewing opening 2 designed in the manner of a through hole.

Das Sichtfenster 1 ist auf montagefreundliche und mit wenigen Dichtstellen leckageunanfällige Art und Weise gasdicht in der Sichtöffnung 2 der Gehäusewand 22 eingesetzt. Hierzu sind auf beiden Seiten der Gehäusewand Dichtelemente 17, 18 vorgesehen, welche zwischen einem umlaufenden Kragen der Scheibenträger 3, 4 und der gegenüberliegenden Kante 2.2 der Sichtöffnung 2 verspannt sind. Das klimaseitige Dichtelement 18 weist einen runden Querschnitt und das außenseitige Dichtelement 17 einen rechteckigen Querschnitt auf, wobei auch andere Querschnitte denkbar wären. Beide Dichtelemente 17, 18 sind von ringförmige Geometrie und erstrecken sich entlang der Kante 2.2 der der Sichtöffnung 2 um diese herum.The viewing window 1 is inserted in a gas-tight manner in the viewing opening 2 of the housing wall 22 in a manner that is easy to assemble and leak-proof with few sealing points. For this purpose, sealing elements 17, 18 are provided on both sides of the housing wall, which are between a circumferential Collar of the disc carrier 3, 4 and the opposite edge 2.2 of the viewing opening 2 are braced. The climate-side sealing element 18 has a round cross section and the outside sealing element 17 has a rectangular cross section, wherein other cross sections would also be conceivable. Both sealing elements 17, 18 are of annular geometry and extend along the edge 2.2 of the viewing opening 2 around it.

Während die beiden Scheibenträger in Fig. 2 im montierten Zustand dargestellt sind, zeigen die Fig. 3 und 4 die beiden Scheibenträger 3 und 4 jeweils separat in perspektivischer Ansicht.While the two disc carriers in Fig. 2 are shown in the assembled state, the 3 and 4 the two disc carriers 3 and 4 each separately in a perspective view.

Der Scheibenträger 3 ist deckelartig ausgebildet und trägt eine Fensterscheibe 11 aus optisch transparentem Material. Zur Befestigung der Fensterscheibe 11 an dem Scheibenträger 3 ist ein die Fensterscheibe 11 umgebender Fensterrahmen 7 vorgesehen. An den Fensterrahmen 7 schließt sich ein im Durchmesser kleinerer Befestigungsabschnitt 9 an. Der Befestigungsabschnitt 9 ist von rohrförmiger Geometrie und beim Ausführungsbeispiel einstückig mit dem Fensterrahmen 7 verbunden. Beim Ausführungsbeispiel sind sowohl die Fensterscheibe 11, als auch der diese umgebende Fensterrahmen 7 wie auch der Befestigungsabschnitt 9 aus einem optisch transparentem Material und insbesondere einem Kunststoffmaterial hergestellt. Alternativ wäre es auch möglich, den Befestigungsabschnitt 9 aus einem undurchsichtigen Material herzustellen und diesen mit dem Fensterrahmen 7 zu verbinden.The pane support 3 is designed like a lid and carries a window pane 11 made of optically transparent material. A window frame 7 surrounding the window pane 11 is provided for fastening the window pane 11 to the pane carrier 3. A fastening section 9 with a smaller diameter is connected to the window frame 7. The fastening section 9 is of tubular geometry and, in the exemplary embodiment, is integrally connected to the window frame 7. In the exemplary embodiment, both the window pane 11 and the window frame 7 surrounding it, as well as the fastening section 9, are made of an optically transparent material and in particular a plastic material. Alternatively, it would also be possible to produce the fastening section 9 from an opaque material and to connect it to the window frame 7.

In diesem Fall wäre der Scheibenträger 3 aus zwei Stücken gefertigt. Vorteil des nicht transparenten Bereichs 9 wäre, dass es einem Beobachter nicht möglich wäre, durch die Sichtscheibe 1 über die innere Mantelfläche 2.1 der Sichtöffnung 2 schräg in das Innere der Gehäusewand 22 hineinzublicken, wo sich beispielsweise ein mineralischer Dämmstoff befindet.In this case, the disk carrier 3 would be made from two pieces. The advantage of the non-transparent area 9 would be that it would not be possible for an observer to look diagonally through the viewing window 1 over the inner circumferential surface 2.1 of the viewing opening 2 into the interior of the housing wall 22, where for example a mineral insulating material is located.

Am freien Ende des Befestigungsabschnitts 9 weist der Scheibenträger 3 ein Befestigungsmittel 5 auf, welches derart ausgebildet ist, dass es mit einem korrespondierenden Befestigungsmittel 6 des anderen Scheibenträgers 4 infolge einer Relativbewegung der beiden Befestigungsmittel 5, 6 zusammenwirkt.At the free end of the fastening section 9, the pane carrier 3 has a fastening means 5 which is designed such that it interacts with a corresponding fastening means 6 of the other pane carrier 4 as a result of a relative movement of the two fastening means 5, 6.

Beim Ausführungsbeispiel wird das Befestigungsmittel 5 von zwei radial nach innen vorspringenden Laschen gebildet. Es können auch mehr laschen als Befestigungsmittel 5 eingesetzt werden. Auch die Verwendung eher spiralförmig ausgebildeter Laschen wäre denkbar. Die Laschen können auch länger oder kürzer ausgebildet sein. Wichtig ist, dass diese geeignet sind, in eine Spirale des anderen Befestigungsmittels 6 einzutreten und die Scheibenträger 3, 4 in der Sichtöffnung 2 zu befestigen.In the embodiment, the fastener 5 is formed by two radially inwardly projecting tabs. It can also be used more tabs than fasteners 5. It would also be conceivable to use tabs with a more spiral shape. The tabs can also be made longer or shorter. It is important that these are suitable to enter a spiral of the other fastening means 6 and to fasten the pane supports 3, 4 in the viewing opening 2.

Fig. 4 zeigt den anderen Scheibenträger 4 in perspektivischer Ansicht. Der Scheibenträger 4 weist eine Fensterscheibe 12 aus transparentem Material auf. Die Fensterscheibe 12 ist umgeben von einem Fensterrahmen 8, an welchen sich ein Befestigungsabschnitt 10 anschließt. Insoweit stimmt die Ausgestaltung des Scheibenträgers 4 mit jener des Scheibenträgers 3 überein. Auch kann der Scheibenträger 4 aus einem Stück in einem transparenten Werkstoff gefertigt sein oder der Befestigungsbereich 10 als separates Stück in einem undurchsichtigen Werkstoff ausgeführt sein. Fig. 4 shows the other disk carrier 4 in a perspective view. The pane support 4 has a window pane 12 made of transparent material. The window pane 12 is surrounded by a window frame 8, to which a fastening section 10 connects. In this respect, the configuration of the disc carrier 4 is the same as that of the disc carrier 3. The pane support 4 can also be made from one piece in a transparent material or the fastening area 10 can be made as a separate piece from an opaque material.

Einzelheiten der Befestigungsmittel 6 des Scheibenträgers 4 sind auch in den Fig. 5 bis 7 dargestellt.Details of the fastening means 6 of the disk carrier 4 are also in the 5 to 7 shown.

Die Befestigungselemente 6 werden bei dem Scheibenträger 4 von spiralförmigen oder teilspiralförmigen Elementen gebildet, die am Umfang des zylindrischen Befestigungsabschnitts 10 angeordnet sind. Beim Ausführungsbeispiel werden die Befestigungselemente 6 von insgesamt drei Spiralwendabschnitten 6.1, 6.2 und 6.3 gebildet, die in Richtung der Montageachse M des Sichtfensters 1 gegeneinander versetzt angeordnet sind. Grundsätzlich wäre zur Montage des Sichtfensters 1 ein einziger solcher Spiralwendelabschnitt 6.1, 6.2 oder 6.3 ausreichend. Durch mehrere Spiralwendelabschnitte wird jedoch eine Möglichkeit zur schnellen Anpassung des Sichtfensters an verschiedene Wandstärken der Gehäusewand 22 geschaffen, was nachfolgend noch näher erläutert werden wird.In the disk carrier 4, the fastening elements 6 are formed by spiral or partially spiral elements which are arranged on the circumference of the cylindrical fastening section 10. In the exemplary embodiment, the fastening elements 6 are formed by a total of three spiral turning sections 6.1, 6.2 and 6.3, which point in the direction of the mounting axis M of the viewing window 1 are arranged offset from one another. Basically, a single such spiral spiral section 6.1, 6.2 or 6.3 would be sufficient for mounting the viewing window 1. However, a plurality of spiral spiral sections creates a possibility for quickly adapting the viewing window to different wall thicknesses of the housing wall 22, which will be explained in more detail below.

Ferner zu erkennen ist, dass die Spiralwendeabschnitte 6.1, 6.2 und 6.3 nicht durchgängig ausgebildet sind, sondern auf zweigegenüber liegenden Seiten entsprechend der Anzahl der Befestigungsmittel 5 des anderen Scheibenträgers 3 mit einer Einschuböffnung 13 versehen sind, in welche die Befestigungsmittel 5 des anderen Scheibenträgers eingeführt werden können. Die Einschuböffnungen sind von kanalförmigem Querschnitt. Um das Einführen zu erleichtern, sind die Einschuböffnungen 13 einschubseitig mit einer Einführschräge 14 versehen.It can also be seen that the spiral turning sections 6.1, 6.2 and 6.3 are not continuous, but are provided on two opposite sides corresponding to the number of fasteners 5 of the other disk carrier 3 with an insertion opening 13 into which the fastening means 5 of the other disk carrier are inserted can. The insertion openings have a channel-shaped cross section. In order to facilitate insertion, the insertion openings 13 are provided with an insertion bevel 14 on the insertion side.

Die Vorgänger bei der Montage der beiden Scheibenträger 3, 4 zu einem gemeinsamen Sichtfenster 1 ist in den Fig. 8 bis 11 veranschaulicht.The predecessor to the assembly of the two pane supports 3, 4 to form a common viewing window 1 is shown in FIG 8 to 11 illustrated.

Innerhalb der Sichtöffnung 2 werden die beiden Scheibenträger 3, 4 entlang der Montageachse M aus entgegen gesetzten Richtungen R1, R2 zunächst aufeinander zu bewegt. Dabei treten die laschenartigen Befestigungsmittel 5 in den Bereich der Einschuböffnung 13 ein, bis die beiden Scheibenträger 3, 4 mit deren Fensterrahmen 7, 8 an dem Rand der Einschuböffnung 2 zur Anlage kommen und ein weiteres axiales Bewegen nicht mehr möglich ist. Die Fensterrahmen 7, 8 bilden insoweit Anschläge.Within the viewing opening 2, the two pane supports 3, 4 are first moved towards each other along the mounting axis M from opposite directions R 1 , R 2 . The tab-like fastening means 5 enter the area of the insertion opening 13 until the two pane supports 3, 4 with their window frames 7, 8 come to rest on the edge of the insertion opening 2 and a further axial movement is no longer possible. To this extent, the window frames 7, 8 form stops.

In dieser Stellung wirkt eine an dem einen Scheibenträger 13 angeordnete Verdrehsicherung 19 mit einer Gegenkontur an der Gehäusewand 22 derart zusammen, dass sich der Scheibenträger 4 innerhalb der Sichtöffnung 2 nicht mehr verdrehen lässt. Die Verdrehsicherung 19 ist an dem klimaseitigen Scheibenträger 4 angeordnet. Beim Ausführungsbeispiel wird die Verdrehsicherung 19 von einem Formschlusselement gebildet, welches an dem Fensterrahmen 8 des Scheibenträgers 4 angeordnet ist und formschlüssig mit einer Gegenstruktur an der Gehäusewand 22 zusammenwirkt. Bei Ausführungsbeispiel wird die Verdrehsicherung 19 von einem Vorsprung und die Gegenstruktur an der Gehäusewand 22 von einem Rücksprung gebildet. Es wäre alternativ jedoch auch möglich, dass Verdrehsicherung 19 von einem Rücksprung und die Gegenstruktur an der Gehäusewand 22 von einem Vorsprung gebildet wird.In this position, an anti-rotation device 19 arranged on the one disk carrier 13 interacts with a counter-contour on the housing wall 22 in such a way that the disk carrier 4 can no longer be rotated within the viewing opening 2. The anti-rotation device 19 is on the climatic side Disc carrier 4 arranged. In the exemplary embodiment, the anti-rotation device 19 is formed by a form-locking element, which is arranged on the window frame 8 of the pane support 4 and interacts positively with a counter-structure on the housing wall 22. In the exemplary embodiment, the anti-rotation device 19 is formed by a projection and the counter structure on the housing wall 22 by a recess. Alternatively, however, it would also be possible for the anti-rotation device 19 to be formed by a recess and the counter structure on the housing wall 22 to be formed by a projection.

Sodann wird der eine Scheibenträger 3 gegenüber dem anderen Scheibenträger 4 relativ bewegt und hierdurch die Befestigungsmittel 5 betätigt, d.h. die Befestigungsmittel 5, 6 werden miteinander in Eingriff gebracht. Bei der Relativbewegung handelt es sich um eine Relativverdrehung der beiden Scheibenträger 3, 4, infolge welcher diese schraubenartig miteinander verbunden werden. Ein Mitdrehen des Scheibenträgers 4 in der Sichtöffnung 2 wird über die Verdrehsicherung 19 unterbunden.Then the one disc carrier 3 is moved relative to the other disc carrier 4 and thereby the fastening means 5 is actuated, i.e. the fastening means 5, 6 are brought into engagement with one another. The relative movement is a relative rotation of the two disk carriers 3, 4, as a result of which these are connected to one another in a screw-like manner. The disk support 4 is also prevented from rotating in the viewing opening 2 by the anti-rotation device 19.

Beim gegenseitigen Verdrehen der beiden Scheibenträger 3, 4 treten zunächst die laschenartigen Befestigungselemente 5 in den Bereich der Spiralabschnitte 6.1, 6.2, 6.3 ein, vgl. auch die Darstellungen in den Fig. 10 und 11. Je nachdem, wie groß die Wandstärke der Gehäusewand 22 ist, gelangen diese wahlweise hinter einem der Spiralabschnitte 6.1, 6.2 oder 6.3 in Anlage. Bei weiteren Verdrehen übt der entsprechende Spiralabschnitt 6.1, 6.2 oder 6.3 aufgrund dessen Steigung eine Axialkraft auf das Befestigungselement 5 aus. In der Folge bewegen sich die beiden Scheibenträger 3, 4 in axialer Richtung unter Ausgleich etwaiger Fertigungstoleranzen jeweils auf die Gehäusewand 22 zu, bis die Dichtelemente 17, 18 ausreichend gestaucht sind und das Sichtfenster druckdicht in der Sichtöffnung sitzt.When the two disk carriers 3, 4 are rotated relative to one another, the tab-like fastening elements 5 first enter the area of the spiral sections 6.1, 6.2, 6.3, cf. also the representations in the 10 and 11 . Depending on how large the wall thickness of the housing wall 22 is, these optionally come into contact behind one of the spiral sections 6.1, 6.2 or 6.3. Upon further rotation, the corresponding spiral section 6.1, 6.2 or 6.3 exerts an axial force on the fastening element 5 due to its incline. As a result, the two disk carriers 3, 4 move in the axial direction, compensating for any manufacturing tolerances, towards the housing wall 22 until the sealing elements 17, 18 are sufficiently compressed and the viewing window is seated pressure-tight in the viewing opening.

In einem letzten Schritt wird dann eine Rückdrehsicherung 15 hergestellt, die dafür sorgt, dass sich die beiden Scheibenträger 3, 4 im laufenden Betrieb nicht in entgegen gesetzter Richtung relativverdrehen und sich die Befestigung ungewollt lösen kann.In a last step, a reverse rotation lock 15 is then produced, which ensures that the two disk carriers 3, 4 do not rotate relative to one another in the opposite direction during operation and the attachment can unintentionally loosen.

Hierzu kann gemäß Fig. 3 eine Bohrung zur Aufnahme einer mit der Gehäusewand 22 verschraubbaren Sicherungsschraube vorgesehen sein. Da es über die Lebensdauer des Sichtfensters betrachtet aber durchaus vorkommen kann, dass dieses etwa im Falle porös gewordener Dichtungen demontiert und nach Einsetzen neuer Dichtungen wieder montiert wird, sind beim Ausführungsbeispiel mehrere Rückdrehsicherungen 16 vorgesehen. Insgesamt sind zu der eigentliche Rückdrehsicherung 15 drei zusätzliche Rückdrehsicherungen vorgesehen, die etwa in Winkelabständen von 90° über den Umfang des Scheibenträgers 3 verteilt angeordnet sind, es können jedoch auch noch mehr zusätzliche Rückdrehsicherungen 16 vorgesehen werden. Diese zusätzlichen Rückdrehsicherungen 16 können alternativ zu der Rückdrehsicherung 15 verwendet werden, wenn sich diese im Falle einer Zweitmontage des Sichtfensters 1 insbesondere aufgrund eines ungünstig positionierten Bohrlochs der ursprünglich verwendeten Sicherungsschraube in der Gehäusewand 22 als ungeeignet sein sollte.According to Fig. 3 a bore can be provided for receiving a locking screw that can be screwed to the housing wall 22. Since it can happen over the lifetime of the viewing window that it may be disassembled, for example in the case of porous seals, and reinstalled after the insertion of new seals, in the exemplary embodiment a plurality of anti-rotation devices 16 are provided. In total, three additional anti-rotation safeguards 15 are provided for the actual anti-rotation lock 15, which are distributed approximately at 90 ° angular intervals around the circumference of the disk carrier 3, but more additional anti-rotation locks 16 can also be provided. These additional anti-rotation locks 16 can be used as an alternative to the anti-rotation lock 15, if this should be unsuitable in the case of a second installation of the viewing window 1, in particular due to an unfavorably positioned drill hole of the locking screw originally used in the housing wall 22.

Wie bereits erwähnt würde zur Betätigung der Befestigungsmittel 5, 6 eine einzige Spiralwendel als Befestigungselement 6 ausreichen. Es sind beim Ausführungsbeispiel jedoch drei Spiralwendeln 6.1, 6.2, 6.3 vorgesehen, die als Wandstärkenausgleich für unterschiedliche Wandstärken der Gehäusewand 22 des Anlagengehäuses 20 im Bereich der Sichtöffnung 2 dienen. Dies wird anhand der Darstellungen in den Fig. 12-14 erläutert.As already mentioned, a single spiral helix would be sufficient as the fastening element 6 for actuating the fastening means 5, 6. In the exemplary embodiment, however, three spiral coils 6.1, 6.2, 6.3 are provided, which serve as wall thickness compensation for different wall thicknesses of the housing wall 22 of the system housing 20 in the region of the viewing opening 2. This is shown in the illustrations in the Fig. 12-14 explained.

In Fig. 12 dargestellt ist eine Ansicht des montierten Sichtfensters 1 in einer Sichtöffnung 2 einer vergleichsweise dünnen Gehäusewand 22. In dieser werden die Befestigungsmittel 5 des Scheibenträgers 3 hinter dem Spiralwendelabschnitt 6.3 des anderen Scheibenträgers 4 in Anlage gebracht, welcher dem Fensterrahmen 7 des Scheibenträgers 4 am nächsten ist, und dort durch Verdrehen gesichert. Fig. 13 zeigt eine Einbausituation in einer Sichtöffnung 2 einer Gehäusewand 22 mittlerer Dicke, bei welcher die Befestigungsmittel 5 hinter dem mittleren Spiralwendelanschnitt 6.2 zur Anlage gelangen. Fig. 14 zeigt schließlich eine Einbausituation, bei welcher die Befestigungsmittel 5 an dem Spiralwendelanschnitt 6.3 anliegen, welcher an dem vorderen Ende des Befestigungsabschnitts 10 angeordnet ist.In Fig. 12 a view of the assembled viewing window 1 in a viewing opening 2 of a comparatively thin housing wall 22 is shown. In this, the fastening means 5 of the pane carrier 3 are behind the spiral coil section 6.3 brought into contact with the other pane support 4, which is closest to the window frame 7 of the pane support 4, and secured there by twisting. Fig. 13 shows an installation situation in a viewing opening 2 of a housing wall 22 of medium thickness, in which the fastening means 5 come to rest behind the central spiral helix section 6.2. Fig. 14 finally shows an installation situation in which the fastening means 5 abut the spiral helix section 6.3, which is arranged at the front end of the fastening section 10.

Auf diese Weise kann durch Verwendung der verschiedenen Spiralwendelabschnitte 6.1, 6.2, 6.3 das Sichtfenster 1 wahlweise in unterschiedlich dick ausgebildete Gehäusewände 22 eingesetzt werden. Hierzu ist es nicht erforderlich, irgendwelche konstruktiven Änderungen an dem Sichtfenster 1 vorzunehmen.In this way, by using the various spiral spiral sections 6.1, 6.2, 6.3, the viewing window 1 can optionally be inserted into housing walls 22 of different thicknesses. For this purpose, it is not necessary to make any design changes to the viewing window 1.

Auch ist es nicht erforderlich, für unterschiedlich dicke Gehäusewände zunächst die beiden Scheibenträger 3, 4 mehrfach um deren eigene Achse gegeneinander zu verdrehen und hierdurch eine längere Spiralwendel zu durchlaufen. Vielmehr kann das Befestigungsmittel 5 in die Einführschräge eingeführt werden, bis die Fensterrahmen 7, 8 der beiden Scheibenträger 3, 4 an der Gehäusewand 22 anliegen. Sodann kann durch eine Drehbewegung eine Arretierung der beiden Scheibenträger 3, 4 nach Art einer Schraubverbindung hergestellt werden.It is also not necessary, for housing walls of different thicknesses, to first twist the two disk carriers 3, 4 several times against one another about their own axis and thereby to go through a longer spiral coil. Rather, the fastening means 5 can be inserted into the insertion bevel until the window frames 7, 8 of the two pane supports 3, 4 bear against the housing wall 22. The two disk supports 3, 4 can then be locked in the manner of a screw connection by means of a rotary movement.

Bei dieser Schraubverbindung bildet der die spiralförmigen Befestigungsmittel aufweisende Scheibenträger 3 eine Art Schraube und der die laschenartigen Befestigungselemente 5 aufweisende Scheibenträger 4 eine Art Mutter.In this screw connection, the disk carrier 3 having the spiral-shaped fastening means forms a type of screw and the disk carrier 4 having the tab-like fastening elements 5 forms a type of nut.

Fig. 15 zeigt schließlich noch einmal die Vorgänge beim Montieren der einer Sichtscheibe 1 in explodierter Darstellung, deren beide Teile 3, 4 nach Art eine doppelverglasten Bullauges in eine Gehäusewand 22 aus zwei entgegen gesetzten Richtungen kommend eingesetzt werden. Fig. 15 finally shows once again the processes when assembling a lens 1 in an exploded view, the two parts 3, 4 of Art a double-glazed porthole can be inserted into a housing wall 22 coming from two opposite directions.

Auch wenn zuvor exemplarisch nur ein Ausführungsbeispiel beschrieben ist, bei welchem die beiden Scheibenträger 3, 4 nach Art einer Schraubverbindung miteinander verbunden sind, sind gleichsam auch andere Verbindungsarten denkbar. Beispielsweise können Befestigungselemente 5, 6 an den Befestigungsabschnitten 9 und 10 der beiden Scheibenträger 3, 4 angeordnet sein, die eine Bajonettverbindung bilden. Auch können die Befestigungselemente 5, 6 nach Art von Schnapp- und Rastelementen ausgebildet sein, die sich durch eine axiale Relativbewegung der beiden Scheibenträger 3, 4 betätigen, d.h. miteinander verrasten oder voneinander lösen lassen.Even if only one exemplary embodiment in which the two disk carriers 3, 4 are connected to one another in the manner of a screw connection is described by way of example, other types of connection are also conceivable. For example, fastening elements 5, 6 can be arranged on the fastening sections 9 and 10 of the two disk carriers 3, 4, which form a bayonet connection. The fastening elements 5, 6 can also be designed in the manner of snap and locking elements, which are actuated by an axial relative movement of the two disk carriers 3, 4, i.e. snap together or have them detached from each other.

Entscheidend ist, dass die beiden Scheibenträger 3, 4 ohne zusätzliche Befestigungselemente wie insbesondere Schraubbolzen und ähnliche Elemente miteinander druckdicht auf einfache und montagefreundliche Art und Weise in die Sichtöffnung 1 eines Gerätegehäuses 20 eingesetzt werden und dort durch eine Relativbewegung, insbesondere eine Relativverdrehung oder eine axiale Relativbewegung, der beiden Scheibenträger 3, 4 druckdicht befestigt werden können.It is crucial that the two disk carriers 3, 4 are inserted into the viewing opening 1 of a device housing 20 in a pressure-tight and easy-to-assemble manner without additional fastening elements, in particular screw bolts and similar elements, and there by a relative movement, in particular a relative rotation or an axial relative movement , the two disc carriers 3, 4 can be attached pressure-tight.

Bezugszeichen: Reference number :

11
SichtfensterViewing window
22nd
SichtöffnungViewing opening
2.12.1
InnenflächeInner surface
2.22.2
KanteEdge
33rd
ScheibenträgerDisc carrier
44th
ScheibenträgerDisc carrier
55
BefestigungsmittelFasteners
66
BefestigungsmittelFasteners
6.16.1
SpiralwendelabschnitteSpiral spiral sections
6.26.2
SpiralwendelabschnitteSpiral spiral sections
6.36.3
SpiralwendelabschnitteSpiral spiral sections
77
FensterrahmenWindow frame
88th
FensterahmenWindow frame
99
BefestigungsabschnittFastening section
1010th
BefestigungsabschnittFastening section
1111
FensterscheibeWindow pane
1212
FensterscheibeWindow pane
1313
EinschuböffnungSlot
1414
EinschuböffnungSlot
1515
RückdrehsicherungReverse lock
1616
RückdrehsicherungReverse lock
1717th
Dichtungpoetry
1818th
Dichtungpoetry
1919th
VerdrehsicherungAnti-rotation device
2020th
AnlagengehäuseSystem housing
2121
Türdoor
2222
GehäusewandHousing wall
R1 R 1
Richtungdirection
R2 R 2
Richtungdirection
MM
MontageachseAssembly axis

Claims (14)

  1. Viewing window for insertion into a viewing opening (2), in particular a viewing opening (2) of an RLT installation and/or of a climate chamber, having two pane carriers (3, 4) which can be inserted from opposite directions (R1, R2) into the viewing opening (2) and which can be fastened by way of fastening means (5, 6) in the viewing opening (2),
    wherein the fastening means (5, 6) are arranged and configured on the pane carriers (3, 4) in such a way that they can be actuated by way of a relative rotation of the pane carriers (3, 4),
    wherein the fastening means (6) are formed by a plurality of separate spiral helix portions (6.1, 6.2, 6.3),
    and wherein the fastening means (5) of the one pane carrier (3) are configured so as to engage on the spiral-shaped fastening means (6) of the other pane carrier (4),
    wherein a plurality of fastening means (5) are arranged so as to be distributed over the circumference of the pane carrier (4),
    wherein the spiral helix portions (6.1, 6.2, 6.3) have insertion openings (13) for the insertion of the fastening means (5).
  2. Viewing window according to Claim 1, characterized in that the pane carriers (3, 4) have a window frame (7, 8), which accommodates a window pane (11, 12), and a fastening portion (9, 10) on which the fastening means (5, 6) are arranged.
  3. Viewing window according to either of Claims 1 and 2, characterized in that the window frame (7, 8) and the fastening portion (9, 10) are connected to one another in one piece.
  4. Viewing window according to Claim 2 or 3, characterized in that the fastening portions (9, 10) are configured in such a way that, when inserted into the viewing opening (2), they form a collar which covers the inner surface (2.1) of the viewing opening (2).
  5. Viewing window according to one of Claims 2 to 4, characterized in that the window frames (7, 8) are configured in such a way that they can be clamped against a face-side edge (2.2) of the viewing opening (2) by actuation of the fastening means (5, 6).
  6. Viewing window according to one of the preceding claims, characterized in that the fastening means (5, 6) are configured in the manner of a screw connection, bayonet connection and/or latching connection means.
  7. Viewing window according to one of the preceding claims, characterized in that the fastening means (6) of the one pane carrier (4) are of spiral-shaped configuration at least in portions.
  8. Viewing window according to one of the preceding claims, characterized in that the fastening means (6) are formed by three separate spiral helix portions (6.1, 6.2, 6.3).
  9. Viewing window according to one of the preceding claims, characterized in that, for the purposes of inserting the viewing window into different viewing openings (2), the spiral helix portions (6.1, 6.2, 6.3) are arranged so as to be spaced apart in relation to each other in the insertion direction (R2) of said viewing window.
  10. Viewing window according to one of the preceding claims, characterized in that the fastening means (5) are of spiral-shaped configuration at least in portions.
  11. Viewing window according to one of the preceding claims, characterized in that the fastening means (5) are configured in the manner of tabs, which engage on the spiral-shaped fastening means (6) of the other pane carrier (4).
  12. Viewing window according to one of the preceding claims, characterized in that the insertion openings (13) have, at their insertion end, a lead-in chamfer (14).
  13. Viewing window according to one of the preceding claims, characterized by a backward-rotation prevention means (15) for securing the pane carriers (3, 4) in their fastened position within the viewing opening (2).
  14. Viewing window according to Claim 13, characterized by at least one additional backward-rotation prevention means (16), which can be used as an alternative to or in addition to the backward-rotation prevention means (15).
EP18161047.8A 2017-03-13 2018-03-09 Viewing window for rlt installations and air-conditioner housing Active EP3375968B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18161047T PL3375968T3 (en) 2017-03-13 2018-03-09 Viewing window for rlt installations and air-conditioner housing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017105267.4A DE102017105267A1 (en) 2017-03-13 2017-03-13 Window for RLT systems and air conditioning housings

Publications (2)

Publication Number Publication Date
EP3375968A1 EP3375968A1 (en) 2018-09-19
EP3375968B1 true EP3375968B1 (en) 2020-05-13

Family

ID=61622392

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18161047.8A Active EP3375968B1 (en) 2017-03-13 2018-03-09 Viewing window for rlt installations and air-conditioner housing

Country Status (4)

Country Link
EP (1) EP3375968B1 (en)
DE (1) DE102017105267A1 (en)
ES (1) ES2806700T3 (en)
PL (1) PL3375968T3 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
DE102021124426A1 (en) 2021-09-21 2023-03-23 Emka Beschlagteile Gmbh & Co. Kg. Viewing window with seal
DE102021124427A1 (en) 2021-09-21 2023-03-23 Emka Beschlagteile Gmbh & Co. Kg. viewing window

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Publication number Priority date Publication date Assignee Title
DE102018125499A1 (en) * 2018-10-15 2020-04-16 Emka Beschlagteile Gmbh & Co. Kg Viewing window for HVAC systems and climatic chambers
DE102018125502A1 (en) * 2018-10-15 2020-04-16 Emka Beschlagteile Gmbh & Co. Kg Viewing window for HVAC systems and climatic chambers
DE102019104263B4 (en) * 2019-02-20 2020-10-29 Al-Ko Therm Gmbh Sight glass and housing of an air conditioning and ventilation system

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US4525961A (en) * 1984-04-26 1985-07-02 Thermoform A/S Double-glazed window for insertion in openings in walls or doors of a sandwich-type construction
JPH0744719Y2 (en) * 1993-02-17 1995-10-11 榎本金属株式会社 Light windows for toilets and other room doors
DE19701371B4 (en) 1996-01-27 2005-02-17 Volkswagen Ag Device for fastening a spare wheel in a spare wheel well of a motor vehicle
JP4782611B2 (en) 2006-05-19 2011-09-28 榎本金属株式会社 Light window and its mounting structure
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JP6203073B2 (en) 2014-02-12 2017-09-27 Ykk Ap株式会社 Small window frame material, joinery and building wall provided with the same

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021124426A1 (en) 2021-09-21 2023-03-23 Emka Beschlagteile Gmbh & Co. Kg. Viewing window with seal
DE102021124427A1 (en) 2021-09-21 2023-03-23 Emka Beschlagteile Gmbh & Co. Kg. viewing window

Also Published As

Publication number Publication date
DE102017105267A1 (en) 2018-09-13
PL3375968T3 (en) 2020-11-02
ES2806700T3 (en) 2021-02-18
EP3375968A1 (en) 2018-09-19

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