EP3867567B1 - Viewing window for ventilation and air-conditioning systems and climate chambers - Google Patents

Viewing window for ventilation and air-conditioning systems and climate chambers Download PDF

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Publication number
EP3867567B1
EP3867567B1 EP19790443.6A EP19790443A EP3867567B1 EP 3867567 B1 EP3867567 B1 EP 3867567B1 EP 19790443 A EP19790443 A EP 19790443A EP 3867567 B1 EP3867567 B1 EP 3867567B1
Authority
EP
European Patent Office
Prior art keywords
viewing
viewing window
light
emitting element
pane
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
EP19790443.6A
Other languages
German (de)
French (fr)
Other versions
EP3867567A1 (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.)
Filing date
Publication date
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Publication of EP3867567A1 publication Critical patent/EP3867567A1/en
Application granted granted Critical
Publication of EP3867567B1 publication Critical patent/EP3867567B1/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
    • 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
    • E06B3/54—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/411—Lighting for industrial, commercial, recreational or military use for inspection of the interior of hollow structures, e.g. vessels, tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/20—Elongate light sources, e.g. fluorescent tubes of polygonal shape, e.g. square or rectangular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/33—Elongate light sources, e.g. fluorescent tubes curved annular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a viewing window for insertion into a viewing opening, in particular a viewing opening for observing the interior of an HVAC system and/or a climatic chamber.
  • a viewing window for insertion into a viewing opening, in particular a viewing opening for observing the interior of an HVAC system and/or a climatic chamber.
  • Such and/or viewing windows of the same type are known from EP 3 375 968 A1 , WO 2010/010255 A1 , DE 17 74 786 U , U.S. 2015/0198366 A1 and WO 2012/028813 A1 .
  • HVAC systems ventilation and air-conditioning systems
  • climatic chambers are equipped with a wide variety of machines, systems, system components, aggregates, etc. for various applications.
  • HVAC systems or climatic chambers usually have a closed system housing in which different operating or climatic conditions can prevail, in particular due to the temperatures prevailing there, the pressure level and/or the humidity conditions etc. can differ significantly from the environmental conditions.
  • the walls and doors of the system housings of such HVAC systems and climatic chambers are generally designed to be pressure-tight and also thermally insulated.
  • viewing openings with viewing windows inserted therein are provided at certain points of the system housing , which in practice are often designed in the manner of portholes.
  • the object of the invention is to specify a viewing window which allows the interior of the system housing to be observed in an observer-friendly manner even in unfavorable lighting conditions.
  • a lighting element is provided for illuminating an observation area.
  • the observation area can be illuminated by the operator using the lighting element provided on the viewing window. It does not require the operator to carry a flashlight, which operators find more convenient. There is also no danger that an observer will not carry out his observation tasks carefully, as would be the case if a flashlight or similar device was forgotten.
  • the viewing window has two pane supports that can be inserted into the viewing opening from opposite directions along a mounting axis, with the lighting element being arranged on one of the pane supports.
  • the light-emitting element can preferably be arranged on the inner pane carrier.
  • the lighting element can be shielded from the conditions prevailing inside by means of sealing elements.
  • the lighting element can illuminate the interior from the inner pane carrier in the direction of the viewing axis of the viewing window.
  • the pane carriers each have a window frame carrying a window pane, with the lighting element being arranged on a window frame of the pane carrier in such a way that the available window area is not impaired by the lighting element.
  • the window frames are designed as axial stops to rest on the edge of the viewing opening.
  • the light-emitting element is parallel extends to the edge of the disc carrier. This allows good illumination of the observation area to be achieved.
  • the lighting element is ring-shaped, in particular circular ring-shaped or square ring-shaped is trained.
  • the term “annular” should be understood to mean not only annular geometries but also rectangular or square rings with or without rounded corners. The ring shape allows good illumination without reducing the effective window area.
  • the lighting element has a large number of individual lighting points.
  • the luminous points can each be formed by LEDs.
  • the LEDs can in particular be LEDs that emit white light or--depending on the respective application--also light in a more discrete wavelength range, for example in the UV range.
  • a cover that can be moved back and forth between an open position and a closed position is provided.
  • the viewing window can be closed via the cover and opened only when required. In this way, any disturbing light influences are shielded from the interior of the HVAC system or climate chamber. Shading of devices and equipment can also be achieved via the covering element. This is particularly advantageous for air humidifiers in order to avoid algae formation.
  • the cover is operatively connected to the lighting element in such a way that the lighting element is switched on in the open position and switched off in the closed position.
  • the lighting element is switched on in the open position and switched off in the closed position.
  • a switch button for switching the light-emitting element can be provided.
  • the switch button can be designed as a changeover switch, with which it is possible to switch between an on and a switched-off state, or as a pushbutton switch, via which the switched-on state is activated for a predetermined period of time.
  • a further advantageous embodiment provides that the cover can be moved back and forth between the open position and the closed position by pivoting relative to a pivot bearing. This results in a structurally advantageous possibility of moving the cover back and forth between the open position and the closed position in the manner of a pivotable cover.
  • a further embodiment provides that a power supply is provided for operating the lighting means.
  • the lighting element can also be operated independently of external power supplies and in particular wired power grids, which can prove particularly advantageous in the case of a viewing window mounted in a door or another movable element of a system housing.
  • the power supply is arranged on the pivot bearing.
  • the swivel bearing has a dual function in that it serves not only to swivel the cover but also as a power supply.
  • the power supply is designed in the manner of a battery box.
  • Fig.1 shows a system housing 100 in a highly schematic view.
  • the system housing 100 can be the housing of an HVAC system or the housing of a climatic chamber, as these are widely used in the industrial sector for various applications.
  • two viewing windows 1 are provided, which are each provided with panes and allow a view of the systems and machines accommodated inside the system housing 100 in the manner of portholes, without the door 101 having to be opened for this purpose.
  • One viewing window 1 is arranged in the door 101 and the other viewing window 1 is arranged in a housing wall 102 .
  • the viewing windows 1 are designed and installed in the same way for both wall and door mounting, which is why the following explanations are focused on wall mounting. It goes without saying that the viewing window 1 can also be installed in a door 101 in the same way.
  • the structure and assembly of the viewing window 1 are initially based on the representations in the Figures 2 to 15 generally explained before then using the illustrations in the Figures 16 to 21 on details of a locking device 31 of the window 1 and based on the Figures 22 to 27 details of the lighting element 50 of the viewing window 1 will be discussed.
  • the viewing window 1 has a cylindrical geometry and is inserted into an approximately cylindrical viewing opening 2 within a housing wall 102 of the system housing 100 .
  • the viewing window 1 is composed of two parts.
  • One part of the viewing window 1 is formed by a disc carrier 3 which is inserted into the viewing opening 2 from one side of the housing wall 102 along the direction R 1 .
  • the second part of the viewing window 1 is formed by a further pane carrier 4 which is inserted into the viewing opening 2 along the direction R 2 from the opposite side of the housing wall 102 .
  • the housing wall 102 of the system housing 100 can be, for example, a solid housing wall 102 or a sandwich-like housing wall 102 formed from metallic surfaces and an insulating material arranged in between, which is provided with the inspection 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 102 in a way that is easy to assemble and, with few sealing points, is not susceptible to leaks.
  • sealing elements 17, 18 are provided on both sides of the in 2 Solid housing wall 102 made of a rubber-elastic material.
  • the sealing elements 17, 18 are between a peripheral collar of the disc carrier 3, 4 and the opposite Edge 2.2 of the viewing opening 2 braced.
  • One sealing element 18 has a round cross section and the other sealing element 17 has a rectangular cross section, although 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 carrier 3 is designed like a cover 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 adjoins the window frame 7 .
  • the fastening section 9 has a tubular geometry and is connected in one piece 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 .
  • the disk carrier 3 would be made of two pieces.
  • the advantage of the non-transparent area 9 would be that it would not be possible for an observer to look through the viewing window 1 over the inner lateral surface 2.1 of the viewing opening 2 at an angle into the interior of the housing wall 102, where, in the case of a sandwich-like housing wall 102, a mineral insulating material is located, for example .
  • the pane carrier 3 has a fastening means 5 which is designed in such a way 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 fastening means 5 is formed by two tabs projecting radially inward. More tabs can also be used as fasteners 5 . It would also be conceivable to use tabs that are more spiral-shaped. The tabs can also be made longer or shorter. It is important that these are suitable for entering a spiral of the other fastening means 6 and fastening the pane carriers 3, 4 in the viewing opening 2.
  • the pane carrier 4 shows the other disc carrier 4 in a perspective view.
  • the pane carrier 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 is connected.
  • the configuration of the disk carrier 4 corresponds to that of the disk carrier 3 .
  • the pane carrier 4 can also be made in one piece from a transparent material or the fastening area 10 can be designed as a separate piece from an opaque material.
  • the fastening means 6 are formed by spiral-shaped or partially spiral-shaped elements which are arranged on the circumference of the cylindrical fastening section 10 .
  • the fasteners 6 of a total of three spiral coil sections 6.1, 6.2 and 6.3 formed, which are offset in the direction of the assembly axis M of the viewing window 1 against each other.
  • a single such spiral helix section 6.1, 6.2 or 6.3 would be sufficient for mounting the viewing window 1.
  • a plurality of spiral coil sections creates the possibility of quickly adapting the viewing window 1 to different wall thicknesses of the housing wall 102, which will be explained in more detail below.
  • spiral coil sections 6.1, 6.2 and 6.3 are not continuous, but are provided on two opposite sides with an insertion opening 13 corresponding to the number of fastening means 5 of the other pane carrier 3, into which the fastening means 5 of the other pane carrier are inserted can.
  • the insertion openings 13 are of channel-shaped cross-section. In order to facilitate insertion, the insertion openings 13 are provided with an insertion bevel 14 on the insertion side.
  • FIG Figures 8 to 11 The processes involved in assembling the two pane carriers 3, 4 to form a common viewing window 1 are shown in FIG Figures 8 to 11 illustrated.
  • the two pane carriers 3, 4 are initially moved toward one another along the assembly axis M from opposite directions R1 , R2 .
  • the strap-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 viewing opening 2 and further axial movement is no longer possible.
  • the window frames 7, 8 form stops.
  • an anti-rotation device 19 arranged on one pane carrier 4 interacts with a counter-contour on the housing wall 102 in such a way that the pane carrier 4 moves within the inspection opening 2 can no longer be twisted.
  • the anti-twist device 19 is formed by a positive-locking element which is arranged on the window frame 8 of the pane carrier 4 and interacts positively with a counter-structure on the housing wall 102 .
  • the anti-twist device 19 is formed by a projection and the counter-structure on the housing wall 102 is formed by a recess. Alternatively, however, it would also be possible for the anti-twist device 19 to be formed by a recess and for the counter-structure on the housing wall 102 to be formed by a projection.
  • one disk carrier 3 is moved relative to the other disk carrier 4 and the fastening means 5, 6 are thereby actuated, i. H. the fasteners 5, 6 are engaged with each other.
  • the relative movement is a relative rotation of the two disk carriers 3, 4, as a result of which they are connected to one another in a screw-like manner via a rotary connection 30.
  • the anti-twist device 19 prevents the pane carrier 4 from rotating in the viewing opening 2 .
  • the strap-like fastening means 5 first enter the area of the spiral coil sections 6.1, 6.2, 6.3, see also the illustrations in FIGS Figures 10 and 11 . Depending on how thick the wall of the housing wall 102 is, these come into contact either behind one of the spiral coil sections 6.1, 6.2 or 6.3. As the twisting continues, the corresponding spiral coil section 6.1, 6.2 or 6.3 exerts an axial force on the fastening means 5 due to its pitch. The two disc carriers 3, 4 then move in the axial direction towards the housing wall 102, compensating for any manufacturing tolerances, until the sealing elements 17, 18 are sufficiently compressed and the viewing window sits pressure-tight in the viewing opening 2.
  • 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 102 of the system housing 100 in the area of the viewing opening 2, so that one and the same viewing window 1 can be used for different wall thicknesses. This is explained below using the illustrations in the 12-14 explained.
  • a view of the mounted viewing window 1 is shown in a viewing opening 2 of a comparatively thin housing wall 102.
  • the fastening means 5 of the pane carrier 3 are brought into contact behind the spiral coil section 6.3 of the other pane carrier 4, which is closest to the window frame 7 of the pane carrier 4, and secured there by twisting.
  • 13 shows an installation situation in a viewing opening 2 of a housing wall 102 of medium thickness, in which the fastening means 5 come to rest behind the middle spiral coil section 6.2.
  • 14 finally shows an installation situation in which the fastening means 5 bear against the spiral coil section 6.3, which is arranged at the front end of the fastening section 10.
  • the viewing window 1 can optionally be used in housing walls 102 of different thicknesses. It is not necessary to make any structural changes to the viewing window 1 for this purpose.
  • the disk carrier 3 having the spiral-shaped fastening means forms a type of screw and the disk carrier 4 having the strap-like fastening means 5 forms a type of nut.
  • FIG. 15 shows once again the processes involved in assembling the viewing pane 1 in an exploded view, the two pane supports 3, 4 of which are inserted into a housing wall 102 in the manner of a double-glazed porthole, coming from two opposite directions.
  • the two pane carriers 3, 4 can be inserted without additional fastening elements such as in particular bolts and similar elements together in a pressure-tight manner in a simple and easy-to-assemble manner in the viewing opening 2 of a system housing 100 and fastened there by a rotary joint 30.
  • a difference compared to the viewing window 1 described above is in the execution according to Figures 16 to 27 in that the viewing window 1 is not inserted into a solid housing wall 102 of a system housing 100, but rather into a housing wall 102 constructed in sandwich construction, cf. 15 and 16 .
  • the housing wall 102 has a multi-layer structure with two plate-shaped elements 103, which can in particular be metal sheets. Between the elements 103 is a gap 104 is provided for receiving a filler.
  • the filler can be, for example, mineral insulating wool or a similar filler.
  • the viewing window 1 basically corresponds to the features described above and, due to the sandwich construction of the housing wall 102, differs only in that an intermediate ring 40 is arranged in the area between the plate-shaped elements 103, which is not required in the case of a solid housing wall 102.
  • the intermediate ring 40 is as shown in the 16 and 17 arranged in the area of the viewing opening 2 between the plate-shaped elements 103 and surrounds the viewing opening 2 in a concentrically offset position.
  • the intermediate ring 40 has a separation point 42, see also FIG 26 .
  • the separation point 42 By temporarily loosening the separation point 42, the intermediate ring 40 can be deformed for assembly purposes in such a way that it extends over the viewing opening 2, which has a smaller radius, in the in the 16 and 17 bring shown area between the window frames 7, 8 and arrange accordingly.
  • the intermediate ring 40 fulfills several functions in the housing wall 102 constructed like a sandwich.
  • the main function of the intermediate ring 40 is first of all to achieve pressure-resistant support for the two plate-shaped elements 103 .
  • the plate-like elements 103 are formed by thin-walled and therefore easily deformable sheet metal.
  • the intermediate ring 40 therefore sits in the manner of a spacer between the window frames 7, 8 of the pane supports 3, 4.
  • the two thin-walled elements 103 are therefore not deformed inwards, but pressed against the end faces of the intermediate ring 40 and supported there. Unwanted deformations of the elements 103 are thus prevented.
  • the intermediate ring 40 also has a sealing function.
  • the intermediate ring 40 has a sealant receptacle 41 on each of its end faces.
  • the sealant receptacle 41 extends in the manner of a groove along the end face of the intermediate ring 40.
  • a seal made of a rubber-elastic material can be accommodated in the sealant receptacle 41 to seal the interior of the housing wall 102 in relation to the area of the viewing window 1 or the viewing opening 2.
  • the air and climatic conditions prevailing inside the housing wall 102 are therefore not transferred to the inside of the viewing window 1.
  • the risk of the viewing window 1 being fogged up unintentionally is significantly reduced.
  • a third function of the intermediate ring 40 is that it consists of an optically non-transparent material and in this respect forms a privacy screen. It is therefore not possible for the observer to look through the window panes 11, 12 into the area between the two plate-shaped elements 103 at the filler arranged there.
  • the fastening sections 9, 10 of the disk carriers 3, 4 can therefore be made transparent, advantageously with a frosted glass-like surface.
  • FIG. 18 shows the disk carrier 3 in a perspective view.
  • a latching element 32 is provided on each of the fastening means 5, projecting radially inwards.
  • the locking element 32 is designed in the manner of a locking lug and when the rotary connection 30 is produced, it interacts in a latching manner with latching elements 33 provided on the other pane carrier 4 .
  • the locking elements 33 of the other disk carrier 4 are in the 19 and 20 to recognize.
  • a large number of latching elements 33 can be seen in the area of the fastening means 6, which is formed by a plurality of spiral coil sections 6.1, 6.2, 6.3.
  • the locking elements 33 are arranged parallel to the spiral coil sections 6.1, 6.2, 6.3.
  • Each of the helical coil sections 6.1, 6.2, 6.3 is assigned a latching section 34 formed from a plurality of latching elements 33 arranged in a row, on which the latching element 32 latches when the rotary connection 30 is established by engaging the fastening means 5 on the fastening means 6.
  • the latching element 32 When the disk carriers 3, 4 rotate relative to one another, the latching element 32 is moved along one of the latching sections 34 like a ratchet and latched between two latching elements 33 as soon as the rotational movement ends. As a result, a locking device 31 is formed, which prevents unwanted turning back, for example due to vibrations acting on the viewing window 1, seals becoming porous over time, or similar circumstances.
  • the rotary connection 30 is functionally coupled to the locking device 31 .
  • the locking device 31 is also activated automatically when the revolving connection 30 is established.
  • it is therefore necessary to apply a certain force so that the locking element 32 can jump from a locking position between two locking elements 33 to the next locking position.
  • the attachment section 9 of the pane carrier 3 expands temporarily and then snaps back into its initial position due to the inherent elasticity of the material.
  • the force application points 35 are designed in the manner of wrench flats.
  • the force application points 35 can be gripped with a special tool and the pane carrier 3 can be turned with a sufficiently large tightening torque.
  • a Council section 34 formed from a plurality of latching elements 33 is arranged parallel to a fastening means 6 or one of its helical coil sections.
  • the latching elements 33 have a wavy contour with depressions 36 arranged between the latching elements 33 and in which the latching element 32 can come to rest.
  • the latching elements 33 or indentations 36 each have a latching distance A along the latching section 34, resulting in a uniform latching in the manner of a ratchet.
  • the latching elements 33 could also have a jagged, scale-like or barb-like structure. In this way, different forces can be achieved when tightening and loosening the rotary connection 30 .
  • the rotary movements of the two pane carriers 3, 4 can also end in a position in which the latching element 32 lies on top of a latching element 33.
  • the disc carrier 3 will rotate back at most by half a locking distance A until the locking element 32 has entered the nearest depression 36 and has locked between two adjacent locking elements 33 .
  • the council distance A and the pitch of the spiral coil sections 6.1, 6.2, 6.3 are dimensioned in such a way that the resulting axial movement of the disk carriers 3, 4 is negligibly small. In particular, there is no fear that the existing seals will lose their effectiveness.
  • the viewing window 1 first shows the viewing window 1 in the viewing opening 2 of a housing wall 102 constructed in sandwich construction.
  • the viewing window 1 is closed opaquely via the cover 52, see also the representation in FIG 17 .
  • the construction of the viewing window 1 is in 25 shown in a perspective view and essentially corresponds to the configurations described above.
  • the lighting element 50 is provided on the inside of the viewing window 1 .
  • the light-emitting element 50 is, as has already been shown in the illustration in 16 and 17 was clearly arranged in the area of the window frame 8 of the pane carrier 4 .
  • the window frame 8 has a receiving groove 20 in which the lighting element 50 is accommodated.
  • the window frame 8 consists of an optically transparent material, so that the lighting element 50 can illuminate the observation area inside.
  • a separate switch can be provided to actuate the light-emitting element 50 .
  • the cover 52 is operatively connected to the lighting element 50 in such a way that the lighting element 50 is switched on automatically when the cover 52 is opened.
  • the light-emitting element 50 is switched off automatically. In this way, it is prevented that when the cover 52 is closed, for example due to an operator error, there is no possibility that the lighting element 50 will continue to shine unobserved.
  • a power supply 54 is provided, which is designed in the manner of a battery box.
  • the power supply 54 is integrated into the pivot bearing 53, resulting in a compact design.
  • the battery box 54 and the pivot bearing 53 only need to be attached to the outside of the housing wall 102 via two screw connection points 56 .
  • the light-emitting element 50 is constructed as an LED ring with a multiplicity of light-emitting points 57 which are distributed uniformly over the circumference of the light-emitting element 50 .
  • the luminous points 57 each have an angular distance ⁇ from one another.
  • the arrangement of the lighting element 50 in the area of the window frame 7 does not impair the available viewing area of the viewing window 1 .
  • the light-emitting element 50 can also be used at a suitable location independently of external power supplies due to the power supply 54 integrated into the viewing window 1 .

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Glass Compositions (AREA)
  • Casings For Electric Apparatus (AREA)

Description

Die vorliegende Erfindung betrifft ein Sichtfenster zum Einsetzen in eine Sichtöffnung, insbesondere eine Sichtöffnung zur Beobachtung des Innenraums einer RLT-Anlage und/oder einer Klimakammer. Derartige und/oder gattungsgleiche Sichtfenster sind bekannt aus EP 3 375 968 A1 , WO 2010/010255 A1 , DE 17 74 786 U , US 2015/0198366 A1 und WO 2012/028813 A1 .The present invention relates to a viewing window for insertion into a viewing opening, in particular a viewing opening for observing the interior of an HVAC system and/or a climatic chamber. Such and/or viewing windows of the same type are known from EP 3 375 968 A1 , WO 2010/010255 A1 , DE 17 74 786 U , U.S. 2015/0198366 A1 and WO 2012/028813 A1 .

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 insbesondere aufgrund der dort herrschenden Temperaturen, des Druckniveaus und/oder der Luftfeuchteverhältnisse usw. deutlich von den Umgebungsbedingungen unterscheiden können. Aus diesem Grund werden die Wände und Türen der Anlagengehäuse derartiger RLT-Anlagen und Klimakammern in der Regel druckdicht und auch wärmegedämmt ausgebildet. Um eine beispielsweise im Inneren einer RLT-Anlage angeordnete Maschine von außerhalb des Anlagengehäuses beobachten zu können, ohne hierbei eine Tür des Anlagengehäuses öffnen zu müssen und hierdurch die im Inneren herrschenden Bedingungen zu beeinflussen, sind an bestimmten Stellen des Anlagengehäuses Sichtöffnungen mit darin eingesetzten Sichtfenstern vorgesehen, die in der Praxis häufig nach Art von Bullaugen ausgebildet sind.Especially in the industrial sector, ventilation and air-conditioning systems (HVAC systems) and climatic chambers are equipped with a wide variety of machines, systems, system components, aggregates, etc. for various applications. Such HVAC systems or climatic chambers usually have a closed system housing in which different operating or climatic conditions can prevail, in particular due to the temperatures prevailing there, the pressure level and/or the humidity conditions etc. can differ significantly from the environmental conditions. For this reason, the walls and doors of the system housings of such HVAC systems and climatic chambers are generally designed to be pressure-tight and also thermally insulated. In order to be able to observe a machine arranged inside an HVAC system, for example, from outside the system housing without having to open a door of the system housing and thereby influencing the conditions prevailing inside, viewing openings with viewing windows inserted therein are provided at certain points of the system housing , which in practice are often designed in the manner of portholes.

Häufig ist es so, dass im Inneren der Anlagengehäuse keine Beleuchtung vorgesehen ist, weshalb es einem Beobachter nicht ohne weiteres möglich ist, den Bereich hinter dem Sichtfenster zu beobachten. In der Praxis behelfen sich die Beobachter häufig damit, dass sie eine Taschenlampe mit sich führen, mit welcher sie über das Sichtfenster in das Innere des Anlagengehäuses gezielt hineinleuchten können, um dort bestimmte Maschinen oder Prozesse beobachten zu können.It is often the case that no lighting is provided inside the system housing, which is why it is not readily possible for an observer to observe the area behind the viewing window. In practice, the observers often manage by carrying a flashlight with them, with which they can shine a light through the viewing window into the interior of the system housing in order to be able to observe certain machines or processes there.

Dies hat sich in der Praxis insoweit als nachteilig erwiesen, als dass die Bediener stets eine Taschenlampe mit sich führen müssen, was sich in der Praxis als umständlich und wenig beobachterfreundlich erwiesen hat.In practice, this has proven to be disadvantageous insofar as the operators always have to carry a flashlight with them, which in practice has proven to be cumbersome and not very observer-friendly.

Davon ausgehend stellt sich die Erfindung die Aufgabe , ein Sichtfenster anzugeben, welches selbst bei ungünstigen Lichtverhältnissen auf beobachterfreundliche Art und Weise eine Beobachtung des Inneren des Anlagengehäuses erlaubt.Proceeding from this, the object of the invention is to specify a viewing window which allows the interior of the system housing to be observed in an observer-friendly manner even in unfavorable lighting conditions.

Bei einem Sichtfenster der eingangs genannten Art wird zur Lösung dieser Aufgabe vorgeschlagen, dass ein Leuchtelement zur Ausleuchtung eines Beobachtungsbereichs vorgesehen ist.In order to solve this problem, it is proposed in a viewing window of the type mentioned at the outset that a lighting element is provided for illuminating an observation area.

Durch das an dem Sichtfenster vorgesehene Leuchtelement kann der Beobachtungsbereich durch den Bediener im Bedarfsfall ausgeleuchtet werden. Es ist nicht erforderlich, dass der Bediener hierzu eine Taschenlampe mit sich führt, was von den Bedienern als komfortabler empfunden wird. Auch besteht nicht die Gefahr, dass ein Beobachter seinen Beobachtungsaufgaben nicht sorgfältig nachkommt, wie dies etwa der Fall wäre, wenn eine Taschenlampe oder ein ähnliches Gerät vergessen wurde.If necessary, the observation area can be illuminated by the operator using the lighting element provided on the viewing window. It does not require the operator to carry a flashlight, which operators find more convenient. There is also no danger that an observer will not carry out his observation tasks carefully, as would be the case if a flashlight or similar device was forgotten.

Gemäß der Erfindung weist das Sichtfenster zwei entlang einer Montageachse aus entgegengesetzten Richtungen in die Sichtöffnung einsetzbare Scheibenträger auf, wobei das Leuchtelement an einem der Scheibenträger angeordnet ist. Vorzugsweise kann das Leuchtelement an dem innenliegenden Scheibenträger angeordnet sein. Das Leuchtelement kann gegenüber den im Inneren herrschenden Bedingungen über Dichtelemente abgeschirmt sein. Das Leuchtelement kann von dem inneren Scheibenträger in Richtung der Sichtachse des Sichtfensters in das Innere leuchten.According to the invention, the viewing window has two pane supports that can be inserted into the viewing opening from opposite directions along a mounting axis, with the lighting element being arranged on one of the pane supports. The light-emitting element can preferably be arranged on the inner pane carrier. The lighting element can be shielded from the conditions prevailing inside by means of sealing elements. The lighting element can illuminate the interior from the inner pane carrier in the direction of the viewing axis of the viewing window.

In diesem Zusammenhang ist es erfindungsgemäß weiter vorgesehen, dass die Scheibenträger jeweils einen eine Fensterscheibe tragenden Fensterrahmen aufweisen, wobei das Leuchtelement an einem Fensterrahmen des Scheibenträgers angeordnet ist, derart, dass die zur Verfügung stehende Fensterfläche durch das Leuchtelement nicht beeinträchtigt wird. Die Fensterrahmen sind dabei zur Anlage am Rand der Sichtöffnung als axiale Anschläge ausgebildet.In this context, it is further provided according to the invention that the pane carriers each have a window frame carrying a window pane, with the lighting element being arranged on a window frame of the pane carrier in such a way that the available window area is not impaired by the lighting element. The window frames are designed as axial stops to rest on the edge of the viewing opening.

Eine vorteilhafte Ausgestaltung sieht vor, dass sich das Leuchtelement parallel zum Rand des Scheibenträgers erstreckt. Hierdurch lässt sich eine gute Ausleuchtung des Beobachtungsbereichs erreichen. Eine in ähnlicher Weise vorteilhafte Ausgestaltung sieht vor, dass das Leuchtelement ringförmig, insbesondere kreisring- oder quadratringförmig ausgebildet ist. Unter dem Begriff "ringförmig" sollen nicht nur kreisringförmige Geometrien, sondern auch rechteckige oder quadratische Ringe mit oder ohne abgerundete Ecken verstanden werden. Die Ringform erlaubt eine gute Ausleuchtung, ohne die effektive Fensterfläche zu verringern.An advantageous embodiment provides that the light-emitting element is parallel extends to the edge of the disc carrier. This allows good illumination of the observation area to be achieved. A similarly advantageous embodiment provides that the lighting element is ring-shaped, in particular circular ring-shaped or square ring-shaped is trained. The term “annular” should be understood to mean not only annular geometries but also rectangular or square rings with or without rounded corners. The ring shape allows good illumination without reducing the effective window area.

Eine konstruktiv vorteilhafte Ausgestaltung sieht vor, dass das Leuchtelement eine Vielzahl einzelner Leuchtpunkte aufweist. In energetisch vorteilhafter Weise können die Leuchtpunkte jeweils von LEDs gebildet werden. Bei den LEDs kann es sich insbesondere um solche LEDs handeln, die Weißlicht oder - entsprechend der jeweiligen Anwendung - auch Licht in einem diskreteren Wellenlängenbereich emittieren, beispielsweise im UV-Bereich.A structurally advantageous configuration provides that the lighting element has a large number of individual lighting points. In an energetically advantageous manner, the luminous points can each be formed by LEDs. The LEDs can in particular be LEDs that emit white light or--depending on the respective application--also light in a more discrete wavelength range, for example in the UV range.

Für verschiedene Anwendungen hat es sich zudem als vorteilhaft erwiesen, wenn eine zwischen einer Offenstellung und einer Schließstellung hin- und her bewegbare Abdeckung vorgesehen ist. Über die Abdeckung kann das Sichtfenster geschlossen und nur bei Bedarf geöffnet werden. Auf diese Weise werden gegebenenfalls störende Lichteinflüsse vom Inneren der RLT-Anlage oder Klimakammer abgeschirmt. Auch kann über das Abdeckelement eine Abschattung von Vorrichtungen und Geräten erreicht werden. Dies ist insbesondere bei Luftbefeuchtern von Vorteil, um eine Algenbildung zu vermeiden.For various applications, it has also proven to be advantageous if a cover that can be moved back and forth between an open position and a closed position is provided. The viewing window can be closed via the cover and opened only when required. In this way, any disturbing light influences are shielded from the interior of the HVAC system or climate chamber. Shading of devices and equipment can also be achieved via the covering element. This is particularly advantageous for air humidifiers in order to avoid algae formation.

In diesem Zusammenhang ist es im Hinblick auf eine bedienerfreundliche Ausgestaltung ferner von Vorteil, wenn die Abdeckung mit dem Leuchtelement derart wirkverbunden ist, dass das Leuchtelement in der Offenstellung eingeschaltet und in der Schließstellung ausgeschaltet wird. Es ergibt sich eine Art Ein- und Ausschaltautomatik über die Abdeckung. Bei geöffneter Abdeckung wird der Beobachtungsbereich automatisch ausgeleuchtet. Bei geschlossener Abdeckung schaltet das Leuchtelement ab.In this context, it is also advantageous with regard to a user-friendly configuration if the cover is operatively connected to the lighting element in such a way that the lighting element is switched on in the open position and switched off in the closed position. There is a kind of automatic switching on and off via the cover. When the cover is open, the observation area is automatically illuminated. When the cover is closed, the light element switches off.

Alternativ kann ein Schaltknopf zum Schalten des Leuchtelements vorgesehen sein. Der Schaltknopf kann als Wechselschalter, mit welchem sich zwischen einem ein- und einem ausgeschalteten Zustand schalten lässt, oder als Tastschalter ausgebildet sein, über welchen der eingeschaltete Zustand für einen vorgegebenen Zeitraum aktiviert wird.Alternatively, a switch button for switching the light-emitting element can be provided. The switch button can be designed as a changeover switch, with which it is possible to switch between an on and a switched-off state, or as a pushbutton switch, via which the switched-on state is activated for a predetermined period of time.

Eine weitere vorteilhafte Ausgestaltung sieht vor, dass die Abdeckung durch Verschwenken gegenüber einem Schwenklager zwischen der Offenstellung und der Schließstellung hin- und her bewegbar ist. Auf diese Weise ergibt sich eine konstruktiv vorteilhafte Möglichkeit, die Abdeckung nach Art eines verschwenkbaren Deckels zwischen der Offenstellung und der Schließstellung hin- und her zu bewegen.A further advantageous embodiment provides that the cover can be moved back and forth between the open position and the closed position by pivoting relative to a pivot bearing. This results in a structurally advantageous possibility of moving the cover back and forth between the open position and the closed position in the manner of a pivotable cover.

Eine weitere Ausgestaltung sieht vor, dass eine Stromversorgung zum Betrieb des Leuchtmittels vorgesehen ist. Durch eine dem Sichtfenster zugeordnete Stromversorgung kann das Leuchtelement auch unabhängig von externen Stromversorgungen und insbesondere kabelgebundenen Stromnetzen betrieben werden, was sich insbesondere im Falle eines in eine Tür oder ein sonstiges bewegbares Element eines Anlagengehäuses montierten Sichtfensters als vorteilhaft erweisen kann.A further embodiment provides that a power supply is provided for operating the lighting means. With a power supply assigned to the viewing window, the lighting element can also be operated independently of external power supplies and in particular wired power grids, which can prove particularly advantageous in the case of a viewing window mounted in a door or another movable element of a system housing.

Für eine kompakte Bauweise ist es von Vorteil, wenn die Stromversorgung an dem Schwenklager angeordnet ist. Dem Schwenklager kommt insoweit eine Doppelfunktion zu, als dieses nicht nur zum Schwenken der Abdeckung, sondern auch als Stromversorgung dient.For a compact design, it is advantageous if the power supply is arranged on the pivot bearing. The swivel bearing has a dual function in that it serves not only to swivel the cover but also as a power supply.

In diesem Zusammenhang ist es von besonderem Vorteil, wenn die Stromversorgung nach Art eines Batteriekastens ausgebildet ist.In this context, it is of particular advantage if the power supply is designed in the manner of a battery box.

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

Fig. 1
in stark schematisierter Darstellung die 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 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,
Fig. 16
eine teilweise geschnittene, perspektivische Ansicht eines Sichtfensters,
Fig. 17
eine Schnittansicht des Sichtfensterns aus Fig. 16,
Fig. 18
eine perspektivische Ansicht eines Scheibenträgers,
Fig. 19
eine perspektivische Ansicht eines anderen Scheibenträgers,
Fig. 20
die Scheibenträger aus Fig. 18 und Fig. 19 im montierten Zustand in seitlicher Ansicht,
Fig. 21
die Scheibenträger aus Fig. 18 und Fig. 19 im montierten Zustand in perspektivischer Ansicht,
Fig. 22
eine Schnittansicht eines montierten Sichtfensters,
Fig. 23
eine vergrößerte Detailansicht gemäß der Darstellung in Fig. 22,
Fig. 24
eine perspektivische Ansicht eines montierten Sichtfensters,
Fig. 25
eine Explosionsansicht des Sichtfensters aus Fig. 24,
Fig. 26
eine der Ansicht in Fig. 26 entsprechende Explosionsansicht aus einer anderen Richtung her betrachtet und
Fig. 27
eine Frontalansicht auf Teile des Sichtfensters.
Further details and advantages of the present invention are explained below with the aid of an exemplary embodiment illustrated in the figures. Show in it:
1
in a highly schematic representation the view of a system housing of an HVAC system or a climate chamber with two viewing windows,
2
an enlarged view of one of the two viewing windows,
Figures 3 and 4
Perspective views of the two disc carriers of the viewing window 2 ,
Figures 5 to 7
different views of one of the two target carriers,
8
a perspective view of the two disc carriers in the assembled state,
9
one of the representation in 8 Corresponding representation of the viewing window in side view,
10 and 11
Perspective view of a viewing window to illustrate the processes involved in attaching the viewing window in the viewing opening,
Figures 12 to 14
perspective views to illustrate the wall thickness adjustment of the viewing window according to the invention and
15
an exploded view of the viewing window,
16
a partially sectioned, perspective view of a viewing window,
17
a sectional view of the viewing window 16 ,
18
a perspective view of a disc carrier,
19
a perspective view of another disc carrier,
20
the disk carriers 18 and 19 in assembled condition in side view,
21
the disk carriers 18 and 19 in assembled condition in perspective view,
22
a sectional view of a mounted viewing window,
23
an enlarged detail view as shown in 22 ,
24
a perspective view of a mounted viewing window,
25
an exploded view of the viewing window 24 ,
26
one of the view in 26 Corresponding exploded view viewed from a different direction and
27
a frontal view of parts of the viewing window.

Fig.1 zeigt in stark schematisierter Ansicht ein Anlagengehäuse 100. Bei dem Anlagengehäuse 100 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 system housing 100 in a highly schematic view. The system housing 100 can be the housing of an HVAC system or the housing of a climatic chamber, as these are widely used in the industrial sector for various applications.

Im Inneren des Anlagengehäuses 100, welches beim Ausführungsbeispiel gemäß Fig. 1 über eine Tür 101 begehbar ist, können verschiedene Maschinen, Anlagen, Anlagenteile, Aggregate und ähnliches angeordnet werden. Im Inneren des Anlagengehäuses 100 herrschen Betriebsbedingungen, die sich zumeist hinsichtlich Druck- und Temperatur von den außerhalb des Anlagengehäuses 100 herrschenden Umgebungsbedingungen unterscheiden. Aus diesem Grund ist es zur Kontrolle der in dem Anlagengehäuse 100 angeordneten Vorrichtungen nicht möglich, einfach die Tür 101 zu öffnen und diese zu inspizieren. Denn durch Öffnen der Tür 101 würden die Betriebsbedingungen innerhalb des Anlagengehäuses 100 beeinträchtigt, was in vielen Fällen nicht gewünscht ist.Inside the system housing 100, which according to the embodiment 1 is accessible via a door 101, various machines, systems, parts of the system, aggregates and the like can be arranged. Operating conditions prevail in the interior of the system housing 100, which mostly differ from the ambient conditions prevailing outside of the system housing 100 in terms of pressure and temperature. For this reason, in order to check the devices arranged in the equipment body 100, it is not possible to simply open the door 101 and inspect it. This is because opening the door 101 would adversely affect the operating conditions within the system housing 100, which is undesirable in many cases.

Um daher beispielsweise eine im Inneren des Anlagengehäuses 100 angeordnete Maschine von außerhalb des Anlagengehäuses 100 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 Anlagengehäuses 100 untergebrachten Anlagen und Maschinen erlauben, ohne dass hierzu die Tür 101 geöffnet werden muss. Das eine Sichtfenster 1 ist in der Tür 101, das andere Sichtfenster 1 in einer Gehäusewand 102 angeordnet. Die Sichtfenster 1 sind sowohl für die Wand- als auch die Türmontage gleich ausgebildet und montiert, weshalb die nachfolgenden Ausführungen auf die Wandmontage konzentriert werden. Es versteht sich, dass das Sichtfenster 1 in gleicher Weise auch in einer Tür 101 montiert werden kann.In order to be able to monitor, for example, a machine arranged inside the system housing 100 from outside the system housing 100, in the exemplary embodiment according to FIG 1 two viewing windows 1 are provided, which are each provided with panes and allow a view of the systems and machines accommodated inside the system housing 100 in the manner of portholes, without the door 101 having to be opened for this purpose. One viewing window 1 is arranged in the door 101 and the other viewing window 1 is arranged in a housing wall 102 . The viewing windows 1 are designed and installed in the same way for both wall and door mounting, which is why the following explanations are focused on wall mounting. It goes without saying that the viewing window 1 can also be installed in a door 101 in the same way.

Der Aufbau und die Montage der Sichtfenster 1 werden nachfolgend zunächst anhand der Darstellungen in den Fig. 2 bis 15 allgemein erläutert, bevor dann anhand der Darstellungen in den Fig. 16 bis 21 auf Einzelheiten einer Rastsicherung 31 der Sichtfenster 1 und anhand der Fig. 22 bis 27 auf Einzelheiten des Leuchtelements 50 der Sichtfenster 1 eingegangen werden wird.The structure and assembly of the viewing window 1 are initially based on the representations in the Figures 2 to 15 generally explained before then using the illustrations in the Figures 16 to 21 on details of a locking device 31 of the window 1 and based on the Figures 22 to 27 details of the lighting element 50 of the viewing window 1 will be discussed.

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 102 des Anlagengehäuses 100 eingesetzt.As shown in 2 can be seen, the viewing window 1 has a cylindrical geometry and is inserted into an approximately cylindrical viewing opening 2 within a housing wall 102 of the system housing 100 .

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 einen Seite der Gehäusewand 102 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 gegenüberliegenden Seite der Gehäusewand 102 in die Sichtöffnung 2 eingesetzt wird.As shown in 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 disc carrier 3 which is inserted into the viewing opening 2 from one side of the housing wall 102 along the direction R 1 . The second part of the viewing window 1 is formed by a further pane carrier 4 which is inserted into the viewing opening 2 along the direction R 2 from the opposite side of the housing wall 102 .

Bei der Gehäusewand 102 des Anlagengehäuses 100 kann es sich beispielsweise um eine massive Gehäusewand 102 oder eine sandwichartige, aus metallischen Oberflächen und einem dazwischenliegend angeordneten Dämmstoff gebildete Gehäusewand 102 handeln, welche mit der nach Art eines Durchgangslochs ausgebildeten Sichtöffnung 2 versehen ist.The housing wall 102 of the system housing 100 can be, for example, a solid housing wall 102 or a sandwich-like housing wall 102 formed from metallic surfaces and an insulating material arranged in between, which is provided with the inspection 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 102 eingesetzt. Hierzu sind auf beiden Seiten der in Fig. 2 massiv ausgebildeten Gehäusewand 102 aus einem gummielastischen Material bestehende Dichtelemente 17, 18 vorgesehen. Die Dichtelemente 17, 18 sind zwischen einem umlaufenden Kragen der Scheibenträger 3, 4 und der gegenüberliegenden Kante 2.2 der Sichtöffnung 2 verspannt. Das eine Dichtelement 18 weist einen runden Querschnitt und das andere Dichtelement 17 einen rechteckigen Querschnitt auf, wobei auch andere Querschnitte denkbar wären. Beide Dichtelemente 17, 18 sind von ringförmiger Geometrie und erstrecken sich entlang der Kante 2.2 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 102 in a way that is easy to assemble and, with few sealing points, is not susceptible to leaks. For this purpose, on both sides of the in 2 Solid housing wall 102 made of a rubber-elastic material sealing elements 17, 18 are provided. The sealing elements 17, 18 are between a peripheral collar of the disc carrier 3, 4 and the opposite Edge 2.2 of the viewing opening 2 braced. One sealing element 18 has a round cross section and the other sealing element 17 has a rectangular cross section, although 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 disk carriers in 2 are shown in the assembled state, show the Figures 3 and 4 the two disk 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 transparenten 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 carrier 3 is designed like a cover 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 adjoins the window frame 7 . The fastening section 9 has a tubular geometry and is connected in one piece to the window frame 7 in the exemplary embodiment. 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 das Sichtfenster 1 über die innere Mantelfläche 2.1 der Sichtöffnung 2 schräg in das Innere der Gehäusewand 102 hineinzublicken, wo sich im Falle einer sandwichartigen Gehäusewand 102 beispielsweise ein mineralischer Dämmstoff befindet.In this case the disk carrier 3 would be made of two pieces. The advantage of the non-transparent area 9 would be that it would not be possible for an observer to look through the viewing window 1 over the inner lateral surface 2.1 of the viewing opening 2 at an angle into the interior of the housing wall 102, where, in the case of a sandwich-like housing wall 102, a mineral insulating material is located, for example .

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 in such a way 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 exemplary embodiment, the fastening means 5 is formed by two tabs projecting radially inward. More tabs can also be used as fasteners 5 . It would also be conceivable to use tabs that are more spiral-shaped. The tabs can also be made longer or shorter. It is important that these are suitable for entering a spiral of the other fastening means 6 and fastening the pane carriers 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. 4 shows the other disc carrier 4 in a perspective view. The pane carrier 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 is connected. In this respect, the configuration of the disk carrier 4 corresponds to that of the disk carrier 3 . The pane carrier 4 can also be made in one piece from a transparent material or the fastening area 10 can be designed 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 fasteners 6 of the disc carrier 4 are also in the Figures 5 to 7 shown.

Die Befestigungsmittel 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 Befestigungsmittel 6 von insgesamt drei Spiralwendelabschnitten 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 1 an verschiedene Wandstärken der Gehäusewand 102 geschaffen, was nachfolgend noch näher erläutert werden wird.In the disk carrier 4 , the fastening means 6 are formed by spiral-shaped or partially spiral-shaped elements which are arranged on the circumference of the cylindrical fastening section 10 . In the embodiment, the fasteners 6 of a total of three spiral coil sections 6.1, 6.2 and 6.3 formed, which are offset in the direction of the assembly axis M of the viewing window 1 against each other. In principle, a single such spiral helix section 6.1, 6.2 or 6.3 would be sufficient for mounting the viewing window 1. However, a plurality of spiral coil sections creates the possibility of quickly adapting the viewing window 1 to different wall thicknesses of the housing wall 102, which will be explained in more detail below.

Ferner zu erkennen ist, dass die Spiralwendelabschnitte 6.1, 6.2 und 6.3 nicht durchgängig ausgebildet sind, sondern auf zwei gegenüberliegenden 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 13 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 coil sections 6.1, 6.2 and 6.3 are not continuous, but are provided on two opposite sides with an insertion opening 13 corresponding to the number of fastening means 5 of the other pane carrier 3, into which the fastening means 5 of the other pane carrier are inserted can. The insertion openings 13 are of 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 Vorgänge bei der Montage der beiden Scheibenträger 3, 4 zu einem gemeinsamen Sichtfenster 1 sind in den Fig. 8 bis 11 veranschaulicht.The processes involved in assembling the two pane carriers 3, 4 to form a common viewing window 1 are shown in FIG Figures 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 Sichtöffnung 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 carriers 3, 4 are initially moved toward one another along the assembly axis M from opposite directions R1 , R2 . The strap-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 viewing opening 2 and 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 4 angeordnete Verdrehsicherung 19 mit einer Gegenkontur an der Gehäusewand 102 derart zusammen, dass sich der Scheibenträger 4 innerhalb der Sichtöffnung 2 nicht mehr verdrehen lässt. 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 102 zusammenwirkt. Bei dem Ausführungsbeispiel wird die Verdrehsicherung 19 von einem Vorsprung und die Gegenstruktur an der Gehäusewand 102 von einem Rücksprung gebildet. Es wäre alternativ jedoch auch möglich, dass die Verdrehsicherung 19 von einem Rücksprung und die Gegenstruktur an der Gehäusewand 102 von einem Vorsprung gebildet wird.In this position, an anti-rotation device 19 arranged on one pane carrier 4 interacts with a counter-contour on the housing wall 102 in such a way that the pane carrier 4 moves within the inspection opening 2 can no longer be twisted. In the exemplary embodiment, the anti-twist device 19 is formed by a positive-locking element which is arranged on the window frame 8 of the pane carrier 4 and interacts positively with a counter-structure on the housing wall 102 . In the exemplary embodiment, the anti-twist device 19 is formed by a projection and the counter-structure on the housing wall 102 is formed by a recess. Alternatively, however, it would also be possible for the anti-twist device 19 to be formed by a recess and for the counter-structure on the housing wall 102 to be formed by a projection.

Sodann wird der eine Scheibenträger 3 gegenüber dem anderen Scheibenträger 4 relativ bewegt und hierdurch die Befestigungsmittel 5, 6 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 über eine Drehverbindung 30 schraubenartig miteinander verbunden werden. Ein Mitdrehen des Scheibenträgers 4 in der Sichtöffnung 2 wird über die Verdrehsicherung 19 unterbunden.Then one disk carrier 3 is moved relative to the other disk carrier 4 and the fastening means 5, 6 are thereby actuated, i. H. the fasteners 5, 6 are engaged with each other. The relative movement is a relative rotation of the two disk carriers 3, 4, as a result of which they are connected to one another in a screw-like manner via a rotary connection 30. The anti-twist device 19 prevents the pane carrier 4 from rotating in the viewing opening 2 .

Bei der Herstellung der Drehverbindung 30 der beiden Scheibenträger 3, 4 treten zunächst die laschenartigen Befestigungsmittel 5 in den Bereich der Spiralwendelabschnitte 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 102 ist, gelangen diese wahlweise hinter einem der Spiralwendelabschnitte 6.1, 6.2 oder 6.3 in Anlage. Beim weiteren Verdrehen übt der entsprechende Spiralwendelabschnitt 6.1, 6.2 oder 6.3 aufgrund dessen Steigung eine Axialkraft auf das Befestigungsmittel 5 aus. In der Folge bewegen sich die beiden Scheibenträger 3, 4 in axialer Richtung unter Ausgleich etwaiger Fertigungstoleranzen jeweils auf die Gehäusewand 102 zu, bis die Dichtelemente 17, 18 ausreichend gestaucht sind und das Sichtfenster druckdicht in der Sichtöffnung 2 sitzt.When the rotary connection 30 of the two disk carriers 3, 4 is produced, the strap-like fastening means 5 first enter the area of the spiral coil sections 6.1, 6.2, 6.3, see also the illustrations in FIGS Figures 10 and 11 . Depending on how thick the wall of the housing wall 102 is, these come into contact either behind one of the spiral coil sections 6.1, 6.2 or 6.3. As the twisting continues, the corresponding spiral coil section 6.1, 6.2 or 6.3 exerts an axial force on the fastening means 5 due to its pitch. The two disc carriers 3, 4 then move in the axial direction towards the housing wall 102, compensating for any manufacturing tolerances, until the sealing elements 17, 18 are sufficiently compressed and the viewing window sits pressure-tight in the viewing opening 2.

Beim Ausführungsbeispiel sind drei Spiralwendeln 6.1, 6.2, 6.3 vorgesehen, die als Wandstärkenausgleich für unterschiedliche Wandstärken der Gehäusewand 102 des Anlagengehäuses 100 im Bereich der Sichtöffnung 2 dienen, so dass sich ein und dasselbe Sichtfenster 1 für unterschiedliche Wandstärken einsetzen lässt. Dies wird nachfolgend anhand der Darstellungen in den Fig. 12-14 erläutert.In the exemplary embodiment, 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 102 of the system housing 100 in the area of the viewing opening 2, so that one and the same viewing window 1 can be used for different wall thicknesses. This is explained below using the illustrations in the 12-14 explained.

In Fig. 12 dargestellt ist eine Ansicht des montierten Sichtfensters 1 in einer Sichtöffnung 2 einer vergleichsweise dünnen Gehäusewand 102. 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 102 mittlerer Dicke, bei welcher die Befestigungsmittel 5 hinter dem mittleren Spiralwendelabschnitt 6.2 zur Anlage gelangen. Fig. 14 zeigt schließlich eine Einbausituation, bei welcher die Befestigungsmittel 5 an dem Spiralwendelabschnitt 6.3 anliegen, welcher an dem vorderen Ende des Befestigungsabschnitts 10 angeordnet ist.In 12 a view of the mounted viewing window 1 is shown in a viewing opening 2 of a comparatively thin housing wall 102. In this, the fastening means 5 of the pane carrier 3 are brought into contact behind the spiral coil section 6.3 of the other pane carrier 4, which is closest to the window frame 7 of the pane carrier 4, and secured there by twisting. 13 shows an installation situation in a viewing opening 2 of a housing wall 102 of medium thickness, in which the fastening means 5 come to rest behind the middle spiral coil section 6.2. 14 finally shows an installation situation in which the fastening means 5 bear against the spiral coil 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 102 eingesetzt werden. Hierzu ist es nicht erforderlich, irgendwelche konstruktiven Änderungen an dem Sichtfenster 1 vorzunehmen.In this way, by using the various spiral coil sections 6.1, 6.2, 6.3, the viewing window 1 can optionally be used in housing walls 102 of different thicknesses. It is not necessary to make any structural changes to the viewing window 1 for this purpose.

Auch ist es nicht erforderlich, für unterschiedlich dicke Gehäusewände 102 zunächst die beiden Scheibenträger 3, 4 mehrfach um deren eigene Achse gegeneinander zu verdrehen und eine längere Spiralwendel zu durchlaufen. Vielmehr kann das Befestigungsmittel 5 in die Einschuböffnung 13 eingeführt werden, bis die Fensterrahmen 7, 8 der beiden Scheibenträger 3, 4 an der Gehäusewand 102 anliegen. Sodann kann durch eine Drehbewegung eine Drehverbindung 30 der beiden Scheibenträger 3, 4 hergestellt werden.It is also not necessary, for housing walls 102 of different thicknesses, first to rotate the two disk carriers 3, 4 several times in relation to one another about their own axis and to run through a longer spiral helix. Rather, the fastener 5 can be inserted into the insertion opening 13 until the window frames 7, 8 of the two pane carriers 3, 4 the housing wall 102 abut. A rotary connection 30 of the two disc carriers 3, 4 can then be produced by a rotary movement.

Bei dieser Drehverbindung 30 bildet der die spiralförmigen Befestigungsmittel aufweisende Scheibenträger 3 eine Art Schraube und der die laschenartigen Befestigungsmittel 5 aufweisende Scheibenträger 4 eine Art Mutter.In this revolving connection 30, the disk carrier 3 having the spiral-shaped fastening means forms a type of screw and the disk carrier 4 having the strap-like fastening means 5 forms a type of nut.

Fig. 15 zeigt noch einmal die Vorgänge beim Montieren der Sichtscheibe 1 in explodierter Darstellung, deren beide Scheibenträger 3, 4 nach Art eines doppelverglasten Bullauges in eine Gehäusewand 102 aus zwei entgegen gesetzten Richtungen kommend eingesetzt werden. Die beiden Scheibenträger 3, 4 können ohne zusätzliche Befestigungselemente wie insbesondere Schraubbolzen und ähnliche Elemente miteinander druckdicht auf einfache und montagefreundliche Art und Weise in die Sichtöffnung 2 eines Anlagengehäuses 100 eingesetzt werden und dort durch eine Drehverbindung 30 befestigt werden. 15 shows once again the processes involved in assembling the viewing pane 1 in an exploded view, the two pane supports 3, 4 of which are inserted into a housing wall 102 in the manner of a double-glazed porthole, coming from two opposite directions. The two pane carriers 3, 4 can be inserted without additional fastening elements such as in particular bolts and similar elements together in a pressure-tight manner in a simple and easy-to-assemble manner in the viewing opening 2 of a system housing 100 and fastened there by a rotary joint 30.

Da die Einzelheiten der Rastsicherung 31 sowie des Leuchtelements 50 in den Fig. 1 bis 15 aus Gründen der Übersicht nicht dargestellt sind, werden diese nachfolgend anhand der Darstellungen in den Fig. 16 bis 27 im Einzelnen erläutert.Since the details of the locking device 31 and the light-emitting element 50 in the Figures 1 to 15 are not shown for reasons of clarity, these are shown below using the illustrations in the Figures 16 to 27 explained in detail.

Ein Unterschied gegenüber dem zuvor beschriebenen Sichtfenster 1 besteht bei der Ausführung gemäß den Fig. 16 bis 27 darin, dass das Sichtfenster 1 nicht in eine massive Gehäusewand 102 eines Anlagengehäuses 100 eingesetzt ist, sondern in eine in Sandwichbauweise aufgebaute Gehäusewand 102, vgl. Fig. 15 und 16.A difference compared to the viewing window 1 described above is in the execution according to Figures 16 to 27 in that the viewing window 1 is not inserted into a solid housing wall 102 of a system housing 100, but rather into a housing wall 102 constructed in sandwich construction, cf. 15 and 16 .

Die Gehäusewand 102 weist bei dieser Ausführung einen mehrlagigen Aufbau mit zwei plattenförmigen Elementen 103 auf, bei welchen es sich insbesondere um Metallbleche handeln kann. Zwischen den Elementen 103 ist ein Zwischenraum 104 zur Aufnahme eines Füllstoffs vorgesehen. Bei dem Füllstoff kann es sich beispielsweise um eine mineralische Dämmwolle oder einen ähnlichen Füllstoff handeln. Das Sichtfenster 1 entspricht im Grunde genommen den zuvor beschriebenen Merkmalen und unterscheidet sich aufgrund der Sandwichbauweise der Gehäusewand 102 lediglich dadurch, dass im Bereich zwischen den plattenförmigen Elementen 103 ein Zwischenring 40 angeordnet ist, der im Falle einer massiven Gehäusewand 102 nicht benötigt wird.In this embodiment, the housing wall 102 has a multi-layer structure with two plate-shaped elements 103, which can in particular be metal sheets. Between the elements 103 is a gap 104 is provided for receiving a filler. The filler can be, for example, mineral insulating wool or a similar filler. The viewing window 1 basically corresponds to the features described above and, due to the sandwich construction of the housing wall 102, differs only in that an intermediate ring 40 is arranged in the area between the plate-shaped elements 103, which is not required in the case of a solid housing wall 102.

Der Zwischenring 40 ist gemäß den Darstellungen in den Fig. 16 und 17 im Bereich der Sichtöffnung 2 zwischen den plattenförmigen Elementen 103 angeordnet und umgibt die Sichtöffnung 2 in einer konzentrisch nach außen versetzten Position. Um in die dargestellte Position zwischen den beiden Elementen 103 auch als Nachrüstlösung eingesetzt werden zu können, weist der Zwischenring 40 eine Trennstelle 42 auf, vgl. auch Fig. 26. Durch vorübergehendes Lösen der Trennstelle 42 kann der Zwischenring 40 zu Montagezwecken derart verformt werden, dass er sich über die im Radius kleinere Sichtöffnung 2 in dem in den Fig. 16 und 17 dargestellten Bereich zwischen den Fensterrahmen 7, 8 einbringen und entsprechend anordnen lässt.The intermediate ring 40 is as shown in the 16 and 17 arranged in the area of the viewing opening 2 between the plate-shaped elements 103 and surrounds the viewing opening 2 in a concentrically offset position. In order to also be able to be used as a retrofit solution in the position shown between the two elements 103, the intermediate ring 40 has a separation point 42, see also FIG 26 . By temporarily loosening the separation point 42, the intermediate ring 40 can be deformed for assembly purposes in such a way that it extends over the viewing opening 2, which has a smaller radius, in the in the 16 and 17 bring shown area between the window frames 7, 8 and arrange accordingly.

Der Zwischenring 40 erfüllt bei der sandwichartig aufgebauten Gehäusewand 102 gleich mehrere Funktionen.The intermediate ring 40 fulfills several functions in the housing wall 102 constructed like a sandwich.

Die Hauptfunktion des Zwischenrings 40 besteht zunächst darin, eine druckfeste Abstützung der beiden plattenförmigen Elemente 103 zu erreichen. Die plattenförmigen Elemente 103 werden von dünnwandigen und damit leicht verformbaren Metallblechen gebildet. Nach Art eines Abstandshalters sitzt der Zwischenring 40 daher zwischen den Fensterrahmen 7, 8 der Scheibenträger 3, 4. Beim Anziehen der Drehverbindung 30 werden die beiden dünnwandigen Elemente 103 daher nicht nach innen verformt, sondern gegen die Stirnseiten des Zwischenrings 40 gedrückt und dort abgestützt. Ungewollte Verformungen der Elemente 103 werden damit unterbunden.The main function of the intermediate ring 40 is first of all to achieve pressure-resistant support for the two plate-shaped elements 103 . The plate-like elements 103 are formed by thin-walled and therefore easily deformable sheet metal. The intermediate ring 40 therefore sits in the manner of a spacer between the window frames 7, 8 of the pane supports 3, 4. When the rotary connection 30 is tightened, the two thin-walled elements 103 are therefore not deformed inwards, but pressed against the end faces of the intermediate ring 40 and supported there. Unwanted deformations of the elements 103 are thus prevented.

Darüber hinaus kommt dem Zwischenring 40 auch eine Dichtfunktion zu. Hierzu verfügt der Zwischenring 40 an seinen Stirnseiten jeweils über eine Dichtmittelaufnahme 41. Die Dichtmittelaufnahme 41 erstreckt sich nach Art einer Nut entlang der Stirnseite des Zwischenrings 40. In der Dichtmittelaufnahme 41 kann eine aus einem gummielastischen Material bestehende Dichtung aufgenommen werden, um das Innere der Gehäusewand 102 gegenüber dem Bereich des Sichtfensters 1 bzw. der Sichtöffnung 2 abzudichten. Die im Inneren der Gehäusewand 102 herrschenden Luft- und Klimabedingungen übertragen sich daher nicht in das Innere des Sichtfensters 1. Die Gefahr eines ungewollten Beschlagens des Sichtfensters 1 wird deutlich verringert.In addition, the intermediate ring 40 also has a sealing function. For this purpose, the intermediate ring 40 has a sealant receptacle 41 on each of its end faces. The sealant receptacle 41 extends in the manner of a groove along the end face of the intermediate ring 40. A seal made of a rubber-elastic material can be accommodated in the sealant receptacle 41 to seal the interior of the housing wall 102 in relation to the area of the viewing window 1 or the viewing opening 2. The air and climatic conditions prevailing inside the housing wall 102 are therefore not transferred to the inside of the viewing window 1. The risk of the viewing window 1 being fogged up unintentionally is significantly reduced.

Eine dritte Funktion des Zwischenrings 40 besteht schließlich darin, dass dieser aus einem optisch nicht transparenten Material besteht und insoweit einen Sichtschutz bildet. Es ist dem Beobachter daher nicht möglich, über die Fensterscheiben 11, 12 in den Bereich zwischen den beiden plattenförmigen Elementen 103 auf den dort angeordneten Füllstoff zu blicken. Die Befestigungsabschnitte 9, 10 der Scheibenträger 3, 4 können daher transparent ausgebildet werden, vorteilhafterweise mit einer milchglasartigen Oberfläche.Finally, a third function of the intermediate ring 40 is that it consists of an optically non-transparent material and in this respect forms a privacy screen. It is therefore not possible for the observer to look through the window panes 11, 12 into the area between the two plate-shaped elements 103 at the filler arranged there. The fastening sections 9, 10 of the disk carriers 3, 4 can therefore be made transparent, advantageously with a frosted glass-like surface.

Nachfolgend werden nun Einzelheiten der Rastsicherung 31 anhand der Darstellungen in den Fig. 18 bis 23 erläutert.Below are now details of the locking device 31 based on the representations in the Figures 18 to 23 explained.

Fig. 18 zeigt in perspektivischer Ansicht den Scheibenträger 3. An den Befestigungsmitteln 5 ist nach radial innen vorspringend jeweils ein Rastelement 32 vorgesehen. Das Rastelement 32 ist nach Art einer Rastnase ausgebildet und wirkt beim Erzeugen der Drehverbindung 30 verrastend mit am anderen Scheibenträger 4 vorgesehenen Rastelementen 33 zusammen. 18 shows the disk carrier 3 in a perspective view. A latching element 32 is provided on each of the fastening means 5, projecting radially inwards. The locking element 32 is designed in the manner of a locking lug and when the rotary connection 30 is produced, it interacts in a latching manner with latching elements 33 provided on the other pane carrier 4 .

Die Rastelemente 33 des anderen Scheibenträgers 4 sind in den Fig. 19 und 20 zu erkennen. Im Bereich des Befestigungsmittels 6, welches von mehreren Spiralwendelabschnitten 6.1, 6.2, 6.3 gebildet wird, ist eine Vielzahl von Rastelementen 33 zu erkennen. Die Rastelemente 33 sind parallel zu den Spiralwendelabschnitten 6.1, 6.2, 6.3 angeordnet. Jedem der Spiralwendelabschnitte 6.1, 6.2, 6.3 ist jeweils eine aus mehreren aneinandergereihten Rastelementen 33 gebildete Raststrecke 34 zugeordnet, an welcher das Rastelement 32 beim Herstellen der Drehverbindung 30 durch Eingreifen des Befestigungsmittels 5 an dem Befestigungsmittel 6 einrastet. Beim gegenseitigen Verdrehen der Scheibenträger 3, 4 wird das Rastelement 32 ähnlich einer Ratsche entlang einer der Raststrecken 34 bewegt und zwischen zwei Rastelementen 33 verrastet, sobald die Drehbewegung endet. Hierdurch wird eine Rastsicherung 31 gebildet, welche ein ungewolltes Zurückdrehen etwa aufgrund von auf das Sichtfenster 1 einwirkenden Vibrationen, im Laufe der Zeit porös werdenden Dichtungen oder ähnlichen Umständen verhindert.The locking elements 33 of the other disk carrier 4 are in the 19 and 20 to recognize. A large number of latching elements 33 can be seen in the area of the fastening means 6, which is formed by a plurality of spiral coil sections 6.1, 6.2, 6.3. The locking elements 33 are arranged parallel to the spiral coil sections 6.1, 6.2, 6.3. Each of the helical coil sections 6.1, 6.2, 6.3 is assigned a latching section 34 formed from a plurality of latching elements 33 arranged in a row, on which the latching element 32 latches when the rotary connection 30 is established by engaging the fastening means 5 on the fastening means 6. When the disk carriers 3, 4 rotate relative to one another, the latching element 32 is moved along one of the latching sections 34 like a ratchet and latched between two latching elements 33 as soon as the rotational movement ends. As a result, a locking device 31 is formed, which prevents unwanted turning back, for example due to vibrations acting on the viewing window 1, seals becoming porous over time, or similar circumstances.

Die Drehverbindung 30 ist mit der Rastsicherung 31 funktional gekoppelt. Auch beim Herstellen der Drehverbindung 30 wird automatisch auch die Rastsicherung 31 aktiviert. Beim Verdrehen der beiden Scheibenträger 3, 4 zum Herstellen der Drehverbindung 30 ist es daher erforderlich, eine gewisse Kraft aufzubringen, damit das Rastelement 32 von einer Raststellung zwischen zwei Rastelementen 33 in die nächste Raststellung springen kann.The rotary connection 30 is functionally coupled to the locking device 31 . The locking device 31 is also activated automatically when the revolving connection 30 is established. When rotating the two pane carriers 3, 4 to produce the rotary connection 30, it is therefore necessary to apply a certain force so that the locking element 32 can jump from a locking position between two locking elements 33 to the next locking position.

Hierzu weitet der Befestigungsabschnitt 9 des Scheibenträgers 3 vorübergehend auf und schnappt dann aufgrund der Eigenelastizität des Materials wieder in seine Ausgangsstellung zurück. Um die erforderliche Kraft aufzubringen, sind an dem Scheibenträger 3 entsprechende Krafteinleitungspunkte 35 vorgesehen. Die Krafteinleitungspunkte 35 sind nach Art von Schlüsselflächen ausgebildet. Die Krafteinleitungspunkte 35 können mit einem Spezialwerkzeug gegriffen und der Scheibenträger 3 mit einem ausreichend großen Anzugsmoment gedreht werden.For this purpose, the attachment section 9 of the pane carrier 3 expands temporarily and then snaps back into its initial position due to the inherent elasticity of the material. In order to apply the required force, there are 3 corresponding force application points on the target carrier 35 provided. The force application points 35 are designed in the manner of wrench flats. The force application points 35 can be gripped with a special tool and the pane carrier 3 can be turned with a sufficiently large tightening torque.

Die hierzu erforderlichen Kräfte müssen auch in entgegengesetzter Richtung beim Lösen der Drehverbindung 30 überwunden werden, was unter normalen Umständen nicht der Fall ist, so dass die Drehverbindung 30 zuverlässig gegen ungewolltes Zurückdrehen gesichert ist.The forces required for this must also be overcome in the opposite direction when loosening the rotary connection 30, which is not the case under normal circumstances, so that the rotary connection 30 is reliably secured against unintentional turning back.

Weitere Einzelheiten der Rastsicherung 31 lassen sich anhand der Darstellungen in den Fig. 22 und 23 erkennen. Wie insbesondere die Darstellung in Fig. 23 erkennen lässt, ist eine aus einer Vielzahl von Rastelementen 33 gebildete Ratstrecke 34 parallel zu einem Befestigungsmittel 6 bzw. eines dessen Spiralwendelabschnitten angeordnet. Die Rastelemente 33 weisen eine wellenförmige Kontur mit zwischen den Rastelementen 33 angeordneten Vertiefungen 36 auf, in welchen das Rastelement 32 zur Anlage gelangen kann. Die Rastelemente 33 bzw. Vertiefungen 36 weisen entlang der Raststrecke 34 jeweils einen Rastabstand A auf, wodurch sich eine gleichmäßige Rastung nach Art einer Ratsche ergibt. Alternativ könnten die Rastelemente 33 auch eine gezackte, schuppenförmige oder wiederhakenförmige Struktur aufweisen. Hierdurch lassen sich unterschiedliche Kräfte beim Anziehen und Lösen der Drehverbindung 30 erreichen.Further details of the locking device 31 can be found in the illustrations in the 22 and 23 recognize. As in particular the representation in 23 can be seen, a Council section 34 formed from a plurality of latching elements 33 is arranged parallel to a fastening means 6 or one of its helical coil sections. The latching elements 33 have a wavy contour with depressions 36 arranged between the latching elements 33 and in which the latching element 32 can come to rest. The latching elements 33 or indentations 36 each have a latching distance A along the latching section 34, resulting in a uniform latching in the manner of a ratchet. Alternatively, the latching elements 33 could also have a jagged, scale-like or barb-like structure. In this way, different forces can be achieved when tightening and loosening the rotary connection 30 .

Wie die Darstellung in Fig. 23 erahnen lässt, können die Drehbewegungen der beiden Scheibenträger 3, 4 auch in einer Stellung enden, in welcher das Rastelement 32 oben auf einem Rastelement 33 liegt. In einem solchen Fall wird maximal eine Rückdrehung des Scheibenträgers 3 um einen halben Rastabstand A erfolgen, bis das Rastelement 32 in die nächstgelegene Vertiefung 36 eingetreten und zwischen zwei benachbarten Rastelementen 33 verrastet ist. Der Ratsabstand A und die Steigung der Spiralwendelabschnitte 6.1, 6.2, 6.3 sind derart bemessen, dass die sich ergebende Axialbewegung der Scheibenträger 3, 4 vernachlässigbar klein ist. Insbesondere steht nicht zu befürchten, dass die vorhandenen Dichtungen ihre Wirkung verlieren.As shown in 23 can be guessed, the rotary movements of the two pane carriers 3, 4 can also end in a position in which the latching element 32 lies on top of a latching element 33. In such a case, the disc carrier 3 will rotate back at most by half a locking distance A until the locking element 32 has entered the nearest depression 36 and has locked between two adjacent locking elements 33 . The council distance A and the pitch of the spiral coil sections 6.1, 6.2, 6.3 are dimensioned in such a way that the resulting axial movement of the disk carriers 3, 4 is negligibly small. In particular, there is no fear that the existing seals will lose their effectiveness.

Nachfolgend werden Einzelheiten des Leuchtelements 50 anhand der Darstellungen in den Fig. 24 bis 27 erläutert werden.Below are details of the light-emitting element 50 based on the illustrations in FIGS Figures 24 to 27 be explained.

Fig. 24 zeigt zunächst das Sichtfenster 1 in der Sichtöffnung 2 einer in Sandwichbauweise aufgebauten Gehäusewand 102. Das Sichtfenster 1 weist auf dessen Außenseite eine deckelartige Abdeckung 52 auf, welche über ein Scharniergelenk 55 gelenkig an einem Schwenklager 53 angelenkt ist. Über die Abdeckung 52 wird das Sichtfenster 1 blickdicht verschlossen, vgl. auch die Darstellung in Fig. 17. Der Aufbau des Sichtfensters 1 ist in Fig. 25 in perspektivischer Ansicht dargestellt und entspricht im Wesentlichen den zuvor beschriebenen Ausgestaltungen. 24 first shows the viewing window 1 in the viewing opening 2 of a housing wall 102 constructed in sandwich construction. The viewing window 1 is closed opaquely via the cover 52, see also the representation in FIG 17 . The construction of the viewing window 1 is in 25 shown in a perspective view and essentially corresponds to the configurations described above.

Auf der Innenseite des Sichtfensters 1 ist das Leuchtelement 50 vorgesehen. Das Leuchtelement 50 ist, wie dies auch bereits anhand der Darstellung in Fig. 16 und Fig. 17 deutlich wurde, im Bereich des Fensterrahmens 8 des Scheibenträgers 4 angeordnet. Der Fensterrahmen 8 weist eine Aufnahmenut 20 auf, in welcher das Leuchtelement 50 untergebracht ist. Der Fensterrahmen 8 besteht aus einem optisch transparenten Material, so dass das Leuchtelement 50 den Beobachtungsbereich im Inneren ausleuchten kann.The lighting element 50 is provided on the inside of the viewing window 1 . The light-emitting element 50 is, as has already been shown in the illustration in 16 and 17 was clearly arranged in the area of the window frame 8 of the pane carrier 4 . The window frame 8 has a receiving groove 20 in which the lighting element 50 is accommodated. The window frame 8 consists of an optically transparent material, so that the lighting element 50 can illuminate the observation area inside.

Zur Betätigung des Leuchtelements 50 kann ein separater Schalter vorgesehen sein. Beim Ausführungsbeispiel ist vorgesehen, dass die Abdeckung 52 mit dem Leuchtelement 50 derart wirkverbunden ist, dass beim Öffnen der Abdeckung 52 das Leuchtelement 50 automatisch eingeschaltet wird. Beim Schließen der Abdeckung 52 wird das Leuchtelement 50 automatisch abgeschaltet. Auf diese Weise wird verhindert, dass bei geschlossener Abdeckung 52 etwa durch einen Bedienfehler die Möglichkeit besteht, dass das Leuchtelement 50 unbeobachtet weiter leuchtet.A separate switch can be provided to actuate the light-emitting element 50 . In the exemplary embodiment, it is provided that the cover 52 is operatively connected to the lighting element 50 in such a way that the lighting element 50 is switched on automatically when the cover 52 is opened. When the cover 52 is closed, the light-emitting element 50 is switched off automatically. In this way, it is prevented that when the cover 52 is closed, for example due to an operator error, there is no possibility that the lighting element 50 will continue to shine unobserved.

Um das Leuchtelement 50 mit Strom zu versorgen, ist eine Stromversorgung 54 vorgesehen, welche nach Art eines Batteriekastens ausgebildet ist. Die Stromversorgung 54 ist in das Schwenklager 53 integriert, wodurch sich eine kompakte Bauweise ergibt. Der Batteriekasten 54 bzw. das Schwenklager 53 brauchen lediglich über zwei Schraubverbindungspunkte 56 an der Außenseite der Gehäusewand 102 befestigt werden.In order to supply the lighting element 50 with electricity, a power supply 54 is provided, which is designed in the manner of a battery box. The power supply 54 is integrated into the pivot bearing 53, resulting in a compact design. The battery box 54 and the pivot bearing 53 only need to be attached to the outside of the housing wall 102 via two screw connection points 56 .

Einzelheiten des Leuchtelements 50 lassen sich in den Darstellungen in den Fig. 26 und 27 erkennen.Details of the light-emitting element 50 can be found in the illustrations in FIGS 26 and 27 recognize.

Das Leuchtelement 50 ist als ein LED-Ring mit einer Vielzahl von Leuchtpunkten 57 aufgebaut, welche gleichmäßig über den Umfang des Leuchtelements 50 verteilt angeordnet sind. Die Leuchtpunkte 57 weisen jeweils einen Winkelabstand α zueinander auf. Durch die Anordnung des Leuchtelements 50 im Bereich des Fensterrahmens 7 wird der zur Verfügung stehende Durchblickbereich des Sichtfensters 1 nicht beeinträchtigt. Das Leuchtelement 50 lässt sich zudem aufgrund der in das Sichtfenster 1 integrierten Stromversorgung 54 unabhängig von externen Stromversorgungen an geeigneter Stelle einsetzen.The light-emitting element 50 is constructed as an LED ring with a multiplicity of light-emitting points 57 which are distributed uniformly over the circumference of the light-emitting element 50 . The luminous points 57 each have an angular distance α from one another. The arrangement of the lighting element 50 in the area of the window frame 7 does not impair the available viewing area of the viewing window 1 . The light-emitting element 50 can also be used at a suitable location independently of external power supplies due to the power supply 54 integrated into the viewing window 1 .

Bezugszeichen:References:

11
Sichtfensterviewing window
22
Sichtöffnungviewing port
2.12.1
InnenflächeInner surface
2.22.2
Kanteedge
33
Scheibenträgerdisc carrier
44
Scheibenträgerdisc carrier
55
Befestigungsmittelfasteners
66
Befestigungsmittelfasteners
6.16.1
Spiralwendelabschnittespiral coil sections
6.26.2
Spiralwendelabschnittespiral coil sections
6.36.3
Spiralwendelabschnittespiral coil sections
77
Fensterrahmenwindow frames
88th
Fensterahmenwindow frames
99
Befestigungsabschnittattachment section
1010
Befestigungsabschnittattachment section
1111
Fensterscheibewindowpane
1212
Fensterscheibewindowpane
1313
Einschuböffnunginsertion opening
1414
Einführschrägelead-in bevel
1515
Rückdrehsicherunganti-reverse device
1616
Rückdrehsicherunganti-reverse device
1717
Dichtungpoetry
1818
Dichtungpoetry
1919
Verdrehsicherunganti-rotation device
2020
Aufnahmenutreceiving groove
3030
DrehverbindungSlewing Ring
3131
Rastsicherunglocking device
3232
Rastelementlocking element
3333
Rastelementlocking element
3434
Raststreckerest area
3535
Krafteinleitungspunktforce application point
3636
Vertiefungdeepening
4040
Zwischenringintermediate ring
4141
Dichtmittelaufnahmesealant intake
4242
Trennstelleseparation point
5050
Leuchtelementlight element
5252
Abdeckungcover
5353
Schwenklagerswivel bearing
5454
Stromversorgungpower supply
5555
Scharniergelenkhinge joint
5656
Schraubverbindungspunktscrew connection point
5757
Leuchtpunktluminous dot
100100
Anlagengehäusesystem housing
101101
Türdoor
102102
Gehäusewandhousing wall
103103
Elementelement
104104
Zwischenraumspace
R1R1
RichtungDirection
R2R2
RichtungDirection
MM
Montageachsemounting axis
AA
Rastabstandgrid spacing

Claims (10)

  1. Viewing window (1) for being placed into a viewing opening (2), in particular a viewing opening (2) of an RLT system and/or an environmental chamber, having two pane carriers (3, 4) which are placeable into the viewing opening (2) along a mounting axis (M) from mutually opposite directions (R1, R2), wherein the pane carriers (3, 4) each have a window frame (7, 8) carrying a windowpane (11, 12), wherein the window frames (7, 8) are embodied as axial stops for coming to rest against the periphery of the viewing opening (2), characterized by a light-emitting element (50) for illuminating a viewing region, which light-emitting element (50) is arranged at one of the window frames (8) of a pane carrier (4) in a manner such that the available window area is not impaired by the light-emitting element (50).
  2. Viewing window according to Claim 1, characterized in that the light-emitting element (50) extends parallel to the periphery of the pane carrier (4).
  3. Viewing window according to either of the preceding claims, characterized in that the light-emitting element (50) is embodied in the shape of a ring, in particular in the shape of a circular ring or a square ring.
  4. Viewing window according to any of the preceding claims, characterized in that the light-emitting element (50) has a multiplicity of individual light-emitting points (57).
  5. Viewing window according to any of the preceding claims, characterized by a cover (52) that is movable back and forth between an open position and a closed position.
  6. Viewing window according to Claim 5, characterized in that the cover (52) is operatively connected to the light-emitting element (50), in that the light-emitting element (50) is switched on in the open position and is switched off in the closed position.
  7. Viewing window according to either of Claims 5 and 6, characterized in that the cover (52) is movable back and forth between the open position and the closed position by being pivoted relative to a pivot bearing (53).
  8. Viewing window according to any of the preceding claims, characterized by a power supply (54) for operating the light-emitting element (50).
  9. Viewing window according to Claims 7 and 8, characterized in that the power supply (54) is arranged at the pivot bearing (53).
  10. Viewing window according to either of Claims 8 and 9, characterized in that the power supply (54) is embodied in the manner of a battery box.
EP19790443.6A 2018-10-15 2019-10-10 Viewing window for ventilation and air-conditioning systems and climate chambers Active EP3867567B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018125502.0A DE102018125502A1 (en) 2018-10-15 2018-10-15 Viewing window for HVAC systems and climatic chambers
PCT/DE2019/100878 WO2020078509A1 (en) 2018-10-15 2019-10-10 Viewing window for ventilation and air-conditioning systems and climate chambers

Publications (2)

Publication Number Publication Date
EP3867567A1 EP3867567A1 (en) 2021-08-25
EP3867567B1 true EP3867567B1 (en) 2023-02-22

Family

ID=68295898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790443.6A Active EP3867567B1 (en) 2018-10-15 2019-10-10 Viewing window for ventilation and air-conditioning systems and climate chambers

Country Status (5)

Country Link
EP (1) EP3867567B1 (en)
DE (1) DE102018125502A1 (en)
ES (1) ES2942438T3 (en)
PL (1) PL3867567T3 (en)
WO (1) WO2020078509A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019104263B4 (en) * 2019-02-20 2020-10-29 Al-Ko Therm Gmbh Sight glass and housing of an air conditioning and ventilation system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1694285U (en) * 1953-12-09 1955-03-03 Siemens Ag DEVICE FOR LIGHTING THE INTERIOR OF A FLAPED CONTAINER.
DE1774786U (en) * 1956-07-25 1958-09-25 Hans Wollenberg ELECTRIC SIGHT GLASS FOR DRYING CABINETS.
US3764794A (en) * 1972-05-05 1973-10-09 King Nutronics Corp Illumination and viewing system for vacuum or pressure chamber
DE2506084C3 (en) * 1975-02-13 1978-10-05 Horst 5840 Schwerte Papenmeier Sight glass light
US6033084A (en) * 1998-02-02 2000-03-07 Burke; June G. Retrofittable mailbox light system
FR2934356B1 (en) * 2008-07-24 2010-09-17 Centre Nat Rech Scient DEVICE FOR SUPPORTING A REMOVABLE AND AUTOPORTED LIGHTING SYSTEM FOR A DOOR.
DE202010006469U1 (en) * 2010-05-05 2011-09-05 Adri Hardware Co., Ltd. peephole
FR2964138B1 (en) * 2010-09-01 2012-08-24 Saint Gobain MULTILIGHTING GLAZING WITH LIGHT EMITTING DIODES
US9797650B2 (en) * 2014-01-10 2017-10-24 Illinois Tool Works Inc. Thermally insulated door assembly and method
DE102017105267A1 (en) * 2017-03-13 2018-09-13 Emka Beschlagteile Gmbh & Co. Kg Window for RLT systems and air conditioning housings

Also Published As

Publication number Publication date
DE102018125502A1 (en) 2020-04-16
EP3867567A1 (en) 2021-08-25
WO2020078509A1 (en) 2020-04-23
PL3867567T3 (en) 2023-05-29
ES2942438T3 (en) 2023-06-01

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