EP0604739B1 - Inspection cover - Google Patents

Inspection cover Download PDF

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Publication number
EP0604739B1
EP0604739B1 EP93118014A EP93118014A EP0604739B1 EP 0604739 B1 EP0604739 B1 EP 0604739B1 EP 93118014 A EP93118014 A EP 93118014A EP 93118014 A EP93118014 A EP 93118014A EP 0604739 B1 EP0604739 B1 EP 0604739B1
Authority
EP
European Patent Office
Prior art keywords
frame
inspection
cover
gap
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93118014A
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German (de)
French (fr)
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EP0604739A1 (en
Inventor
Christoph Langenhorst
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.)
LAHRMANN EVA-MARIA
Original Assignee
LAHRMANN EVA MARIA
Langenhorst geb Lahrmann Eva
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Application filed by LAHRMANN EVA MARIA, Langenhorst geb Lahrmann Eva filed Critical LAHRMANN EVA MARIA
Publication of EP0604739A1 publication Critical patent/EP0604739A1/en
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Publication of EP0604739B1 publication Critical patent/EP0604739B1/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
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E06B5/164—Sealing arrangements between the door or window and its frame, e.g. intumescent seals specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F19/00—Other details of constructional parts for finishing work on buildings
    • E04F19/08—Built-in cupboards; Masks of niches; Covers of holes enabling access to installations

Definitions

  • the invention relates to a revision cover with a revision frame for wall and ceiling installation, with a revision cover which can be inserted into the revision frame, with a circumferential sealing profile being present for sealing the gap between the frame profiles of the revision frame and revision cover, which swells when heat develops, and the sealing profile on the
  • the inside of the frame profiles of the inspection frame is arranged, and the frame legs of the frame profiles forming the gap between the inspection frame and the inspection cover have openings for the passage of the sealing material which swells when exposed to heat.
  • Such a revision cover is known, the revision frame of which can be located in a suspended ceiling.
  • the inspection cover is pivotally mounted in the inspection frame about an axis of articulation.
  • a distance is provided between the inspection frame and the inside of the opening of the false ceiling, which serves to receive a laminate strip as a sealing profile.
  • this laminate strip expands and penetrates through openings in the inspection frame, so that the gap between the inspection frame and the inspection cover is closed.
  • the openings in the inspection frame are intended to enable the laminate strip to be easily accommodated and fastened (cf. DE-A-35 17 836).
  • the invention has for its object to provide a revision cover of the embodiment described above, in which a correct positioning of the sealing profile is guaranteed.
  • the sealing material that swells or foams in the event of a fire can easily pass through the existing openings to seal the gap between the inspection frame and the inspection cover.
  • the invention teaches that the gap-forming or delimiting frame legs of the frame profiles form a chamber for receiving the sealing profile with an insulating plate inserted into the inspection cover or revision frame, so that a correct positioning of the sealing profile on the inside of the frame legs is ensured.
  • the openings in the gap-forming frame legs are preferably designed as rows of holes or rows of slots, predetermined hole diameters or slot widths being selected which ensure that the swelling or foaming sealing profile passes through in the event of a fire.
  • At least one safety spring that can be expanded in the frame plane is arranged on at least one frame profile of the revision frame, that the associated frame profile of the inspection cover has a pocket for receiving a spread-out spring leg of the safety spring, and that the spreadable spring leg on the frame profile the revision frame is held back or tensioned in the starting position by means of a fusible link.
  • the inspection cover has an expandable spring leaf on its rear side, at least in the area of a steel corner angle, which is retained in the starting position by means of a melting bolt and spreads over the relevant corner angle of the revision frame when the melting bolt is melted, however this ensures that the revision cover is held properly in place Fire trap not reached if the revision cover is installed in a wall, for example. Because then the inspection cover can open inwards or outwards in an uncontrolled manner. This is avoided as part of the measures according to the invention. The inspection cover is always locked properly regardless of its hinge and the cover lock.
  • the invention further recommends that a cover which is open towards the inspection cover is provided for the securing spring and which also functions as a hold-down and guide for the expandable spring leg, so that the spread spring leg actually fits perfectly into the opposite pocket on the associated frame profile of the inspection cover entry.
  • a revision cover with a revision frame 1 for wall and ceiling installation is shown, specifically with a revision cover 2 which can be inserted into the revision frame 1, with a lid closure 3, with a circumferential seal for sealing the gap S between the frame profiles 4 of the revision frame 1 and revision cover 2
  • Sealing profile 5 is present, which swells or foams when heat develops.
  • the sealing profile 5 is arranged on the inside of the frame profiles 4 of the inspection cover 2.
  • the frame legs 6 of the frame profiles 4 forming the gap S between the inspection frame 1 and the inspection cover 2 have openings 7 for the passage of the sealing material which swells or foams when exposed to heat.
  • the gap-forming or gap-limiting frame legs 6 form with a circumferential Z-profile 8 a chamber 9 for receiving and fixing the position of the sealing profile 5, the Z-profile 8 resting with its one Z-leg 10 on an insulating plate 11 inserted in the inspection cover 2 , with its other Z-leg 12 abuts or is directed against the frame leg 6 and overlaps the insulating plate 11 with its transverse leg 13.
  • the overlying Z-leg 10 is attached to the relevant frame profile 4 of the inspection cover 2, for. B. screwed.
  • the openings 7 are designed as rows of holes.
  • the associated frame profile 4 of the inspection cover 2 has a pocket 15 for receiving a spread-out spring leg 16 of the securing spring 14.
  • Expandable spring legs 16 are retained or tensioned on the frame profile 4 of the inspection frame 1 by means of a solder 17 or bolt in the starting position and are only released in the event of a fire.
  • a cover 18, which is open towards the inspection cover 2, and guidance or hold-down are provided for the securing spring 14, a cover 18, which is open towards the inspection cover 2, and guidance or hold-down are provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Laminated Bodies (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Magnetic Heads (AREA)
  • Structure And Mechanism Of Cameras (AREA)
  • Special Wing (AREA)

Abstract

The invention relates to an inspection covering with an inspection frame (1), for installation into walls and floors, and with an inspection cover (2) which can be introduced into the inspection frame (1), a peripheral sealing profile (5) being provided in order to seal the gap (S) between inspection profiles (4) of inspection frame (1) and inspection cover (2). The sealing profile (5) is arranged on the inner side of the frame profiles (4) of the inspection frame (1) and/or of the inspection cover (2). The frame legs which form the gap (S) between inspection frame (1) and inspection cover (2) and belong to the frame profiles (4) exhibit openings (7) for the through-passage of the sealing material which swells up under the action of heat. <IMAGE>

Description

Die Erfindung betrifft eine Revisionsabdeckung mit einem Revisionsrahmen für Wand- und Deckeneinbau, mit einem in den Revisionsrahmen einsetzbaren Revisionsdeckel, wobei zum Abdichten des Spaltes zwischen Rahmenprofilen vom Revisionsrahmen und Revisionsdeckel ein umlaufendes Dichtungsprofil vorhanden ist, welches bei Hitzeentwicklung aufquillt, wobei ferner das Dichtungsprofil auf der Innenseite der Rahmenprofile des Revisionsrahmens angeordnet ist, und wobei die den Spalt zwischen Revisionsrahmen und Revisionsdeckel bildenden Rahmenschenkel der Rahmenprofile Durchbrechungen zum Hindurchtreten des bei Hitzeeinwirkung aufquillenden Dichtungsmaterials aufweisen.The invention relates to a revision cover with a revision frame for wall and ceiling installation, with a revision cover which can be inserted into the revision frame, with a circumferential sealing profile being present for sealing the gap between the frame profiles of the revision frame and revision cover, which swells when heat develops, and the sealing profile on the The inside of the frame profiles of the inspection frame is arranged, and the frame legs of the frame profiles forming the gap between the inspection frame and the inspection cover have openings for the passage of the sealing material which swells when exposed to heat.

Es ist eine derartige Revisionsabdeckung bekannt, deren Revisionsrahmen sich in einer abgehängten Unterdecke befinden kann. Der Revisionsdeckel ist in dem Revisionsrahmen um eine Gelenkachse schwenkbar gelagert. Zwischen dem Revisionsrahmen und der Innenseite der Öffnung der Unterdecke ist ein Abstand vorgesehen, welcher zur Aufnahme eines Laminatstreifens als Dichtungsprofil dient. Im Brandfalle dehnt sich dieser Laminatstreifen aus und dringt durch Durchbrechungen im Revisionsrahmen hindurch, so daß der zwischen dem Revisionsrahmen und dem Revisionsdeckel befindliche Spalt verschlossen wird. Die Durchbrechungen in dem Revisionsrahmen sollen eine einfache Unterbringung und Befestigung des Laminatstreifens ermöglichen (vgl. DE-A-35 17 836).Such a revision cover is known, the revision frame of which can be located in a suspended ceiling. The inspection cover is pivotally mounted in the inspection frame about an axis of articulation. A distance is provided between the inspection frame and the inside of the opening of the false ceiling, which serves to receive a laminate strip as a sealing profile. In the event of fire, this laminate strip expands and penetrates through openings in the inspection frame, so that the gap between the inspection frame and the inspection cover is closed. The openings in the inspection frame are intended to enable the laminate strip to be easily accommodated and fastened (cf. DE-A-35 17 836).

Im übrigen kennt man eine Revisionsabdeckung, bei welcher das im Brandfall aufschäumende Dichtungsprofil in einer außenliegenden Nut entweder der Rahmenprofile für den Revisionsrahmen oder für den Revisionsdeckel untergebracht ist. Diese außenliegende Unterbringung des Dichtungsprofils ist schon deshalb unbefriedigend, weil mechanische Beschädigungen nicht ausgeschlossen sind. Auch ein selbständiges Lösen des Dichtungsprofiles liegt im Bereich des Möglichen.In addition, one knows a revision cover, in which the foaming sealing profile in the event of fire in an external Groove of either the frame profiles for the inspection frame or for the inspection cover is housed. This external placement of the sealing profile is unsatisfactory because mechanical damage can not be excluded. Independent loosening of the sealing profile is also possible.

Der Erfindung liegt die Aufgabe zugrunde, eine Revisionsabdeckung der eingangs beschriebenen Ausführungsform zu schaffen, bei welcher eine einwandfreie Positionierung des Dichtungsprofils gewährleistet ist.The invention has for its object to provide a revision cover of the embodiment described above, in which a correct positioning of the sealing profile is guaranteed.

Diese Aufgabe löst die Erfindung bei einer gattungsgemäßen Revisionsabdeckung dadurch, daß das Dichtungsprofil auf der Innenseite der Rahmenprofile des Revisionsrahmens und/oder des Revisionsdeckels angeordnet ist, und daß die spaltbildenden Rahmenschenkel der Rahmenprofile mit einem umlaufenden Z-Profil eine Kammer zur Aufnahme des Dichtungsprofils bilden, wobei das Z-Profil mit seinem einen Z-Schenkel auf der in den Revisionsdeckel bzw. Revisionsrahmen eingesetzten Dämmplatte aufliegt, mit seinem anderen Z-Schenkel gegen die Rahmenschenkel anliegt bzw. gerichtet ist und mit seinem Querschenkel die Dämmplatte übergreift. - Diese Maßnahmen der Erfindung haben zunächst einmal zur Folge, daß das auf der Innenseite der Rahmenprofile von entweder Revisionsrahmen oder Revisionsdeckel angeordnete Dichtungsprofil gegen Beschädigungen geschützt und gegen ein selbständiges Lösen gesichert ist. Das im Brandfalle aufquillende bzw. aufschäumende Dichtungsmaterial kann durch die vorhandenen Durchbrechungen unschwer hindurchtreten, um den Spalt zwischen Revisionsrahmen und Revisionsdeckel abzudichten. Diese Durchbrechungen ermöglichen eine Sichtkontrolle, ob nämlich das Dichtungsprofil tatsächlich eingelegt worden ist. Insoweit wird eine optische Qualitätskontrolle sowohl für die Fertigung als auch für den Benutzer verwirklicht. Darüber hinaus gewährleistet das Z-Profil eine einwandfreie Lagefixierung des Dichtungsprofils.This object is achieved by the invention in the case of a generic revision cover in that the sealing profile is arranged on the inside of the frame profiles of the revision frame and / or the revision cover, and that the gap-forming frame legs of the frame profiles form a chamber for receiving the sealing profile with a circumferential Z profile, wherein the Z-profile rests with its one Z-leg on the insulation board inserted into the inspection cover or revision frame, with its other Z-leg lies or is directed against the frame legs and overlaps the insulation board with its cross leg. - These measures of the invention have the consequence, first of all, that the sealing profile arranged on the inside of the frame profiles of either revision frame or revision cover is protected against damage and is secured against independent loosening. The sealing material that swells or foams in the event of a fire can easily pass through the existing openings to seal the gap between the inspection frame and the inspection cover. These breakthroughs enable a visual check whether the sealing profile has actually been inserted. In this respect, an optical quality control is implemented both for the production and for the user. In addition, the Z profile ensures that the sealing profile is properly fixed in position.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind im folgenden aufgeführt. So lehrt die Erfindung, daß die spaltbildenden bzw. begrenzenden Rahmenschenkel der Rahmenprofile mit einer in den Revisionsdeckel bzw. Revisionsrahmen eingesetzten Dämmplatte eine Kammer zur Aufnahme des Dichtungsprofils bilden, insoweit also eine einwandfreie Positionierung des Dichtungsprofils auf der Innenseite der Rahmenschenkel gewährleistet ist. Vorzugsweise sind die Durchbrechungen in den spaltbildenden Rahmenschenkeln als Lochreihen oder Schlitzreihen ausgebildet, wobei vorgegebene Lochdurchmesser bzw. Schlitzbreiten gewählt sind, die im Brandfall ein einwandfreies Hindurchtreten des aufquillenden bzw. aufschäumenden Dichtungsprofils gewährleisten.Further advantageous embodiments of the invention are listed below. Thus, the invention teaches that the gap-forming or delimiting frame legs of the frame profiles form a chamber for receiving the sealing profile with an insulating plate inserted into the inspection cover or revision frame, so that a correct positioning of the sealing profile on the inside of the frame legs is ensured. The openings in the gap-forming frame legs are preferably designed as rows of holes or rows of slots, predetermined hole diameters or slot widths being selected which ensure that the swelling or foaming sealing profile passes through in the event of a fire.

Nach einer anderen Ausführungsform der Erfindung ist vorgesehen, daß zumindest auf einem Rahmenprofil des Revisionsrahmens zumindest eine in Rahmenebene aufspreizbare Sicherungsfeder angeordnet ist, daß das zugeordnete Rahmenprofil des Revisionsdeckels eine Tasche zur Aufnahme eines aufgespreizten Federschenkels der Sicherungsfeder aufweist, und daß der aufspreizbare Federschenkel auf dem Rahmenprofil des Revisionsrahmens mittels eines Schmelzlotes in Ausgangsstellung zurückgehalten bzw. gespannt ist. Zwar ist es bereits bekannt, daß der Revisionsdeckel auf seiner Rückseite zumindest im Bereich eines stählernen Eckwinkels ein aufspreizbares Federblatt aufweist, welches in Ausgangsstellung mittels eines Schmelzriegels zurückgehalten ist und bei aufgeschmolzenem Schmelzriegel über den betreffenden Eckwinkel des Revisionsrahmens aufspreizt, jedoch wird dadurch eine einwandfreie Halterung des Revisionsdeckels im Brandfalle dann nicht erreicht, wenn die Revisionsabdeckung beispielsweise in eine Wand eingebaut ist. Denn dann kann der Revisionsdeckel unkontrolliert nach innen oder außen öffnen. Das wird im Rahmen der erfindungsgemäßen Maßnahmen vermieden. Stets wird der Revisionsdeckel unabhängig von seinem Scharnier und dem Deckelverschluß einwandfrei arretiert. Aus diesem Grunde empfiehlt die Erfindung weiter, daß für die Sicherungsfeder eine zum Revisionsdeckel hin offene Abdeckung vorgesehen ist, die zugleich als Niederhalter und Führung für den aufspreizbaren Federschenkel funktioniert, so daß der aufgespreizte Federschenkel tatsächlich einwandfrei in die gegenüberliegende Tasche auf dem zugeordneten Rahmenprofil des Revisionsdeckels eintritt.According to another embodiment of the invention it is provided that at least one safety spring that can be expanded in the frame plane is arranged on at least one frame profile of the revision frame, that the associated frame profile of the inspection cover has a pocket for receiving a spread-out spring leg of the safety spring, and that the spreadable spring leg on the frame profile the revision frame is held back or tensioned in the starting position by means of a fusible link. It is already known that the inspection cover has an expandable spring leaf on its rear side, at least in the area of a steel corner angle, which is retained in the starting position by means of a melting bolt and spreads over the relevant corner angle of the revision frame when the melting bolt is melted, however this ensures that the revision cover is held properly in place Fire trap not reached if the revision cover is installed in a wall, for example. Because then the inspection cover can open inwards or outwards in an uncontrolled manner. This is avoided as part of the measures according to the invention. The inspection cover is always locked properly regardless of its hinge and the cover lock. For this reason, the invention further recommends that a cover which is open towards the inspection cover is provided for the securing spring and which also functions as a hold-down and guide for the expandable spring leg, so that the spread spring leg actually fits perfectly into the opposite pocket on the associated frame profile of the inspection cover entry.

Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert; es zeigen:

Fig. 1
Teilweise eine erfindungsgemäße Revisionsabdeckung in Draufsicht,
Fig. 2
einen Schnitt AA durch den Gegenstand nach Fig. 1,
Fig. 3
eine Ansicht in Richtung des Pfeiles X auf einen Rahmenschenkel des Revisionsdeckels für den Gegenstand nach Fig. 2 und
Fig. 4
einen Ausschnitt aus dem Gegenstand nach Fig. 1 mit aufgespreiztem Federschenkel.
In the following, the invention is explained in more detail with reference to a drawing showing only one embodiment; show it:
Fig. 1
Partly a revision cover according to the invention in plan view,
Fig. 2
2 shows a section AA through the object according to FIG. 1,
Fig. 3
a view in the direction of arrow X on a frame leg of the inspection cover for the object of FIG. 2 and
Fig. 4
a section of the object of FIG. 1 with spread spring legs.

In den Figuren ist eine Revisionsabdeckung mit einem Revisionsrahmen 1 für Wand- und Deckeneinbau dargestellt, und zwar mit einem in den Revisionsrahmen 1 einsetzbaren Revisionsdeckel 2 mit Deckelverschluß 3, wobei zum Abdichten des Spalts S zwischen den Rahmenprofilen 4 von Revisionsrahmen 1 und Revisionsdeckel 2 ein umlaufendes Dichtungsprofil 5 vorhanden ist, welches bei Hitzeentwicklung aufquillt bzw. aufschäumt. Das Dichtungsprofil 5 ist nach dem Ausführungsbeispiel auf der Innenseite der Rahmenprofile 4 des Revisionsdeckels 2 angeordnet. Die den Spalt S zwischen Revisionsrahmen 1 und Revisionsdeckel 2 bildenden Rahmenschenkel 6 der Rahmenprofile 4 weisen Durchbrechungen 7 zum Hindurchtreten des bei Hitzeeinwirkung aufquillenden bzw. aufschäumenden Dichtungsmaterials auf. Die spaltbildenden bzw. spaltbegrenzenden Rahmenschenkel 6 bilden mit einem umlaufenden Z-Profil 8 eine Kammer 9 zur Aufnahme und einwandfreien Lagefixierung des Dichtungsprofils 5, wobei das Z-Profil 8 mit seinem einen Z-Schenkel 10 auf einer in den Revisionsdeckel 2 eingesetzten Dämmplatte 11 aufliegt, mit seinem anderen Z-Schenkel 12 gegen die Rahmenschenkel 6 anliegt bzw. gerichtet ist und mit seinem Querschenkel 13 die Dämmplatte 11 übergreift. Der aufliegende Z-Schenkel 10 ist an dem betreffenden Rahmenprofil 4 des Revisionsdeckels 2 befestigt, z. B. verschraubt. Die Durchbrechungen 7 sind als Lochreihen ausgebildet.In the figures, a revision cover with a revision frame 1 for wall and ceiling installation is shown, specifically with a revision cover 2 which can be inserted into the revision frame 1, with a lid closure 3, with a circumferential seal for sealing the gap S between the frame profiles 4 of the revision frame 1 and revision cover 2 Sealing profile 5 is present, which swells or foams when heat develops. According to the exemplary embodiment, the sealing profile 5 is arranged on the inside of the frame profiles 4 of the inspection cover 2. The frame legs 6 of the frame profiles 4 forming the gap S between the inspection frame 1 and the inspection cover 2 have openings 7 for the passage of the sealing material which swells or foams when exposed to heat. The gap-forming or gap-limiting frame legs 6 form with a circumferential Z-profile 8 a chamber 9 for receiving and fixing the position of the sealing profile 5, the Z-profile 8 resting with its one Z-leg 10 on an insulating plate 11 inserted in the inspection cover 2 , with its other Z-leg 12 abuts or is directed against the frame leg 6 and overlaps the insulating plate 11 with its transverse leg 13. The overlying Z-leg 10 is attached to the relevant frame profile 4 of the inspection cover 2, for. B. screwed. The openings 7 are designed as rows of holes.

Außerdem ist auf zumindest einem Rahmenprofil 4 des Revisionsrahmens 1 zumindest eine in Rahmenebene aufspreizbare Sicherungsfeder 14 angeordnet. Das zugeordnete Rahmenprofil 4 des Revisionsdeckels 2 weist eine Tasche 15 zur Aufnahme eines aufgespreizten Federschenkels 16 der Sicherungsfeder 14 auf. Der aufspreizbare Federschenkel 16 ist auf dem Rahmenprofil 4 des Revisionsrahmens 1 mittels eines Schmelzlotes 17 bzw. -riegels in Ausgangsstellung zurückgehalten bzw. gespannt und wird nur im Brandfalle freigegeben. Für die Sicherungsfeder 14 ist eine zum Revisionsdeckel 2 hin offene Abdeckung 18 und gleichsam Führung bzw. Niederhaltung vorgesehen.In addition, at least one safety spring 14, which can be expanded in the plane of the frame, is arranged on at least one frame profile 4 of the inspection frame 1. The associated frame profile 4 of the inspection cover 2 has a pocket 15 for receiving a spread-out spring leg 16 of the securing spring 14. Of the Expandable spring legs 16 are retained or tensioned on the frame profile 4 of the inspection frame 1 by means of a solder 17 or bolt in the starting position and are only released in the event of a fire. For the securing spring 14, a cover 18, which is open towards the inspection cover 2, and guidance or hold-down are provided.

Claims (5)

  1. An inspection covering with an inspection frame (1) for incorporation in walls and ceilings, with an inspection cover (2) able to be inserted into the inspection frame (1), in which to seal the gap (S) between frame sections (4) of the inspection frame (1) and inspection cover (2), a sealing section (5) is present, running all around, which swells when heat develops, in which in addition the sealing section (5) is arranged on the inner side of the frame sections (4) of the inspection frame (1), and in which the frame shanks (6) of the frame sections (4) forming the gap (S) between the inspection frame (1) and inspection cover (2) have openings (7) for the sealing material, swelling under the development of heat, to pass through, characterised in that the sealing section (5) is arranged on the inner side of the frame sections (4) of the inspection frame (1) and/or of the inspection cover (2), and that the gap-forming frame shanks (6) of the frame sections (4) form with a Z-section (8), running all around, a chamber (9) to receive the sealing section (5), in which the Z-section (8) lies with its one Z-shank (10) on the insulating plate (11) inserted into the inspection cover (2) or inspection frame (1), lies against or is directed towards the frame shanks (6) with its other Z-shank (12), and engages over the insulating plate (11) with its transverse shank (13).
  2. An inspection covering according to Claim 1, characterised in that the gap-forming frame shanks (6) of the frame sections (4) form with an insulating plate (11), inserted into the inspection cover (2) or inspection frame (1), a chamber (9) to receive the sealing section (5).
  3. An inspection covering according to Claim 1 or 2, characterised in that the openings (7) in the gap-forming frame shanks (6) are constructed as rows of holes or rows of slits.
  4. An inspection covering according to one of Claims 1 to 3 and independent therefrom, characterised in that on a frame section (4) of the inspection frame (1) a retaining spring (14) is arranged which is capable of expanding in the plane of the frame, that the associated frame section (4) of the inspection cover (2) has a pocket (15) to receive an expanded spring shank (16) of the retaining spring (14), and that the expandable spring shank (16) is held back or braced in initial position on the frame section (4) of the inspection frame (1) by means of a melting solder (17).
  5. An inspection covering according to one of Claims 1 to 4, characterised in that a covering (18), open towards the inspection cover (2), is provided for the retaining spring (14).
EP93118014A 1992-12-31 1993-11-06 Inspection cover Expired - Lifetime EP0604739B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4244578 1992-12-31
DE4244578A DE4244578C2 (en) 1992-12-31 1992-12-31 Revision cover

Publications (2)

Publication Number Publication Date
EP0604739A1 EP0604739A1 (en) 1994-07-06
EP0604739B1 true EP0604739B1 (en) 1996-10-23

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EP93118014A Expired - Lifetime EP0604739B1 (en) 1992-12-31 1993-11-06 Inspection cover

Country Status (7)

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US (1) US5440843A (en)
EP (1) EP0604739B1 (en)
CN (1) CN1049468C (en)
AT (1) ATE144579T1 (en)
CA (1) CA2111666C (en)
DE (2) DE4244578C2 (en)
ES (1) ES2093901T3 (en)

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Also Published As

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CN1093769A (en) 1994-10-19
CA2111666A1 (en) 1994-07-01
DE4244578A1 (en) 1994-07-07
ATE144579T1 (en) 1996-11-15
DE59304296D1 (en) 1996-11-28
DE4244578C2 (en) 1996-05-09
CN1049468C (en) 2000-02-16
US5440843A (en) 1995-08-15
EP0604739A1 (en) 1994-07-06
CA2111666C (en) 1997-11-25
ES2093901T3 (en) 1997-01-01

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