EP2281951A1 - Locking closing device - Google Patents

Locking closing device Download PDF

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Publication number
EP2281951A1
EP2281951A1 EP09002243A EP09002243A EP2281951A1 EP 2281951 A1 EP2281951 A1 EP 2281951A1 EP 09002243 A EP09002243 A EP 09002243A EP 09002243 A EP09002243 A EP 09002243A EP 2281951 A1 EP2281951 A1 EP 2281951A1
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EP
European Patent Office
Prior art keywords
closure device
handle
lockable
material layer
safety cover
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.)
Granted
Application number
EP09002243A
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German (de)
French (fr)
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EP2281951B1 (en
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.)
Langmatz GmbH
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Lic Langmatz GmbH
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Publication date
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Publication of EP2281951A1 publication Critical patent/EP2281951A1/en
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Publication of EP2281951B1 publication Critical patent/EP2281951B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1418—Covers for manholes or the like; Frames for covers with implements to assist in lifting, e.g. counterweights, springs
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1427—Locking devices

Definitions

  • the invention relates to a lockable closure device with at least one handle for opening or removing the closure device.
  • the closure device can be a flap, a door or the like, which can be locked and generally intended to secure a room against unauthorized access or access.
  • the invention relates to a safety cover for a shaft in which, for example, electrical or electronic components are accommodated, to which unauthorized access is to be denied.
  • the safety cover is preferably arranged under the actual manhole cover, which closes the shaft flush with the environment and usually consists of concrete or cast iron.
  • lockable designates not only the securing of the closure device by means of one or more bolts, but all security means with which a door, a flap, a lid or the like can be closed.
  • a safety cover of the type considered is locked or closed upon completion of work in the manhole to prevent unauthorized persons from entering the manhole.
  • this is insufficiently ensured in the previously known safety lids, as can not be ruled out that the safety cover when exercising a large force on the on the Safety lid attached handle (or the handles) can be forcibly opened or torn out of the anchorage.
  • the present invention has for its object to provide a solution to this problem.
  • the invention provides that the at least one handle of the closure device is released from the closure device when a force exceeding a predetermined size is exerted.
  • the at least one handle is torn off the safety cover, which reliably prevents the safety cover is released from its locked state, for example by deforming the latch or its holding elements. It should be understood that the same effect can be caused, for example, in a door when a predetermined magnitude exceeding force is exerted on the handle, thereby preventing the door from being torn from its anchorage.
  • the at least one handle is partially covered by a layer of material, which in turn is attached to the closure device or the security cover.
  • the material layer is preferably a steel sheet which may be welded onto the closure device or safety cover, with any other fastening being within the scope of the invention.
  • a metal sheet may in principle be provided a layer of another material such as plastic. If a steel sheet is the preferred two Covered holding portions of the handle, this steel sheet, for example, have a thickness of 3 mm.
  • the material layer in which the holding portions of the at least one handle overlapping areas incisions such that these areas are deformable to release the at least one handle.
  • the cuts may be lines of reduced material thickness, but it is preferred that these cuts cut through the material layer completely. If the material layer consists of sheet steel, these cuts are preferably formed by laser beams.
  • the at least one handle preferably has a substantially U-shape with inwardly pointing short webs at the ends of the parallel webs, these short webs are covered by preferably cut-free tongues of the material layer. If over the at least one handle a predetermined magnitude exceeding tensile force is exerted on the closure device or the safety cover to tear it out of its locked position, the cut-free tongues are previously bent and release the handle, so that the closure device or the safety cover remains in the locked position.
  • the material layer or the metal sheet has the shape of a transverse strip, which is attached to the safety cover and fixes two spaced handles on their holding sections.
  • two such transverse strips are each attached to the safety cover with two handles, preferably welded onto the safety cover.
  • the handles are expediently made of a round steel, which may for example have a diameter of 10 mm.
  • the invention thus provides a closure device preferably in the form of a safety cover of a shaft, in addition to its Locking device has a further security device, which makes the unauthorized access to the space behind or below the closure device considerably more difficult.
  • This additional security device also has the advantage that it causes only low costs.
  • a security cover 1 of a shaft is shown.
  • This safety cover 1 is located below the usually consisting of concrete or cast iron, one or more parts lid, with which the shaft is flush with its surroundings.
  • the safety cover 1 has a with a special key to be operated lock 2, with the arranged on the underside of the safety cover 1, not shown latch are actuated to releasably secure the safety cover 1 to a manhole frame.
  • the safety cover 1 is unlocked and removed from the manhole by means of four handles 3.
  • the handles 3 are fastened to the safety cover 1 in a special way by means of transverse strips 4.
  • the transverse strips 4 which may consist of a steel sheet of a thickness of 3 mm, are welded to the likewise made of steel safety cover 1.
  • each handle 5 has a substantially U-shape with a top in the use position transverse web 6 and two parallel side webs 7, the lower ends continue in short successive support webs 8, which are parallel to the upper web 6.
  • the transverse strips 4 have a cross-sectionally curved shape, such that they can be undercut by the retaining webs 8 of the handles 5.
  • the transverse strips 4 have in the region of each handle 5 at a distance of the parallel webs 7 of each handle 5 two to the edge 9 of the transverse strips 4 continuous recesses or cutouts 10 through which pass the handles 5.
  • the lateral edge region of the transverse strips 4 is bent in the direction of the safety cover such that the short webs 8 are held in the transverse strips 4 without disturbing lateral play.
  • the transverse strips 4 are welded to the top of the safety cover 1, which is indicated by welds 11.
  • the transverse strips 4 have in the short webs 8 overlapping areas incisions 12, 13, which pass through the material wall.
  • the notches 12 extend parallel to the short webs 8, while the cuts 13 preferably extend at right angles thereto in the direction of the marginal edges of the transverse strips 4, wherein they naturally terminate at a distance from these marginal edges.
  • cut-free tongues 14 are formed, which in the initial state of Fig. 2 are as curved as the adjacent regions of the transverse strips 4.
  • the tongues have a width which is equal to or greater than the length of the short webs 8.
  • the tongues 14 Upon application of a predetermined magnitude exceeding tensile force on the handles 5, the tongues 14 are bent, which in the Figures 3 and 4 is shown schematically, so that the short webs 8 can escape from the resulting thereby openings 15 in the transverse strips 4.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

The locked closure device comprises a handle (3) for opening or removing the closure device. The handle releases the closure device by applying a tractive force exceeding the predetermined value. The closure device is a safety cover (1) for a shaft, where the handle is partly covered by a material layer which is fastened on the closure device. The material layer is a steel plate with slittings on an area which is deformed for releasing the handle.

Description

Die Erfindung betrifft eine verriegelbare Verschlusseinrichtung mit wenigstens einem Handgriff zum Öffnen oder Entfernen der Verschlusseinrichtung.The invention relates to a lockable closure device with at least one handle for opening or removing the closure device.

Bei der Verschlusseinrichtung kann es sich um eine Klappe, eine Tür oder dergleichen handeln, die verschließbar ist und allgemein einen Raum gegen unbefugten Zutritt oder Zugriff sichern soll. Insbesondere betrifft die Erfindung einen Sicherheitsdeckel für einen Schacht, in dem zum Beispiel elektrische oder elektronische Komponenten untergebracht sind, zu denen Unbefugten der Zugang verwehrt werden soll. Dabei ist der Sicherheitsdeckel bevorzugt unter dem eigentlichen Schachtdeckel angeordnet, der den Schacht bündig mit der Umgebung abschließt und meist aus Beton oder Gusseisen besteht.The closure device can be a flap, a door or the like, which can be locked and generally intended to secure a room against unauthorized access or access. In particular, the invention relates to a safety cover for a shaft in which, for example, electrical or electronic components are accommodated, to which unauthorized access is to be denied. In this case, the safety cover is preferably arranged under the actual manhole cover, which closes the shaft flush with the environment and usually consists of concrete or cast iron.

Der Begriff "verriegelbar" bezeichnet nicht nur die Sicherung der Verschlusseinrichtung mittels eines oder mehrerer Riegel, sondern alle Sicherheitsmittel, mit denen eine Tür, eine Klappe, ein Deckel oder dergleichen verschließbar ist.The term "lockable" designates not only the securing of the closure device by means of one or more bolts, but all security means with which a door, a flap, a lid or the like can be closed.

Die Erfindung wird nachfolgend anhand der bevorzugten Anwendung auf einen Sicherheitsdeckel für einen Schacht beschrieben.The invention will be described below with reference to the preferred application to a safety cover for a shaft.

Ein Sicherheitsdeckel der betrachteten Art wird nach Beendigung von Arbeiten in dem Schacht verriegelt oder abgeschlossen, um zu verhindern, dass Unbefugte in den Schacht gelangen können. Dies wird aber bei den bisher bekannten Sicherheitsdeckeln nur unzureichend gewährleistet, da nicht auszuschließen ist, dass der Sicherheitsdeckel bei Ausübung einer großen Kraft auf den an dem Sicherheitsdeckel befestigten Handgriff (bzw. die Handgriffe) gewaltsam geöffnet bzw. aus der Verankerung herausgerissen werden kann.A safety cover of the type considered is locked or closed upon completion of work in the manhole to prevent unauthorized persons from entering the manhole. However, this is insufficiently ensured in the previously known safety lids, as can not be ruled out that the safety cover when exercising a large force on the on the Safety lid attached handle (or the handles) can be forcibly opened or torn out of the anchorage.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Lösung für dieses Problem anzugeben.The present invention has for its object to provide a solution to this problem.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruchs 1 gelöst.This object is achieved by the features of claim 1.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Advantageous embodiments of the invention are characterized in the subclaims.

Die Erfindung sieht vor, dass der wenigstens eine Handgriff der Verschlusseinrichtung sich bei Einwirkung einer eine vorbestimmte Größe übersteigenden Kraft von der Verschlusseinrichtung löst. Bei der bevorzugten Anwendung auf einen Sicherheitsdeckel eines Schachtes wird somit der wenigstens eine Handgriff von dem Sicherheitsdeckel losgerissen, wodurch zuverlässig verhindert ist, dass der Sicherheitsdeckel aus seinem verriegelten Zustand zum Beispiel durch Verformen der Riegel oder deren Halteelemente freigegeben wird. Dabei versteht es sich, dass dieselbe Wirkung zum Beispiel bei einer Tür hervorgerufen werden kann, wenn eine eine vorbestimmte Größe übersteigende Kraft auf deren Handgriff ausgeübt wird, wodurch verhindert wird, dass die Tür aus ihrer Verankerung gerissen werden kann.The invention provides that the at least one handle of the closure device is released from the closure device when a force exceeding a predetermined size is exerted. In the preferred application to a safety cover of a shaft thus the at least one handle is torn off the safety cover, which reliably prevents the safety cover is released from its locked state, for example by deforming the latch or its holding elements. It should be understood that the same effect can be caused, for example, in a door when a predetermined magnitude exceeding force is exerted on the handle, thereby preventing the door from being torn from its anchorage.

In näheren Einzelheiten wird vorgeschlagen, dass der wenigstens eine Handgriff teilweise von einer Materialschicht überdeckt ist, die ihrerseits an der Verschlusseinrichtung bzw. dem Sicherheitsdeckel befestigt ist. Bei der Materialschicht handelt es sich bevorzugt um ein Stahlblech, das auf die Verschlusseinrichtung bzw. den Sicherheitsdeckel aufgeschweißt sein kann, wobei jede andere Befestigung im Rahmen der Erfindung liegt. Anstelle eines Metallblechs kann grundsätzlich auch eine Schicht aus einem anderen Material wie Kunststoff vorgesehen sein. Wenn ein Stahlblech die bevorzugt zwei Halteabschnitte des Handgriffs überdeckt, kann dieses Stahlblech beispielsweise eine Stärke von 3 mm haben.In more detail, it is proposed that the at least one handle is partially covered by a layer of material, which in turn is attached to the closure device or the security cover. The material layer is preferably a steel sheet which may be welded onto the closure device or safety cover, with any other fastening being within the scope of the invention. Instead of a metal sheet may in principle be provided a layer of another material such as plastic. If a steel sheet is the preferred two Covered holding portions of the handle, this steel sheet, for example, have a thickness of 3 mm.

Weiter wird mit großem Vorteil vorgeschlagen, dass die Materialschicht in dem die Halteabschnitte des wenigstens einen Handgriffs überdeckenden Bereichen Einschnitte aufweist, derart, dass diese Bereiche zur Freigabe des wenigstens einen Haltegriffs verformbar sind. Bei den Einschnitten kann es sich um Linien mit verringerter Materialdicke handeln, wobei jedoch bevorzugt ist, dass diese Einschnitte die Materialschicht vollständig durchtrennen. Wenn die Materialschicht aus Stahlblech besteht, werden diese Einschnitte bevorzugt durch Laserstrahlen ausgebildet.Further, it is proposed with great advantage that the material layer in which the holding portions of the at least one handle overlapping areas incisions, such that these areas are deformable to release the at least one handle. The cuts may be lines of reduced material thickness, but it is preferred that these cuts cut through the material layer completely. If the material layer consists of sheet steel, these cuts are preferably formed by laser beams.

Der wenigstens eine Handgriff hat bevorzugt im wesentlichen eine U-Form mit nach innen weisenden kurzen Stegen an den Enden der parallelen Stege, wobei diese kurzen Stege von bevorzugt freigeschnittenen Zungen der Materialschicht überdeckt sind. Wenn über den wenigstens einen Handgriff eine eine vorbestimmte Größe übersteigende Zugkraft auf die Verschlusseinrichtung bzw. den Sicherheitsdeckel ausgeübt wird, um diesen aus seiner verriegelten Lage herauszureißen, werden die freigeschnittenen Zungen zuvor ausgebogen und geben den Handgriff frei, so dass die Verschlusseinrichtung bzw. der Sicherheitsdeckel in der verriegelten Lage verbleibt.The at least one handle preferably has a substantially U-shape with inwardly pointing short webs at the ends of the parallel webs, these short webs are covered by preferably cut-free tongues of the material layer. If over the at least one handle a predetermined magnitude exceeding tensile force is exerted on the closure device or the safety cover to tear it out of its locked position, the cut-free tongues are previously bent and release the handle, so that the closure device or the safety cover remains in the locked position.

In weiterer Ausgestaltung der Erfindung wird vorgeschlagen, dass die Materialschicht bzw. das Metallblech die Form einer Querleiste hat, die an dem Sicherheitsdeckel angebracht ist und zwei beabstandete Handgriffe an ihren Halteabschnitten fixiert. Zweckmäßigerweise sind zwei solcher Querleisten mit jeweils zwei Handgriffen an dem Sicherheitsdeckel befestigt, vorzugsweise auf den Sicherheitsdeckel aufgeschweißt. Die Handgriffe bestehen zweckmäßigerweise aus einem Rundstahl, der zum Beispiel einen Durchmesser von 10 mm haben kann.In a further embodiment of the invention, it is proposed that the material layer or the metal sheet has the shape of a transverse strip, which is attached to the safety cover and fixes two spaced handles on their holding sections. Conveniently, two such transverse strips are each attached to the safety cover with two handles, preferably welded onto the safety cover. The handles are expediently made of a round steel, which may for example have a diameter of 10 mm.

Die Erfindung sieht somit eine Verschlusseinrichtung bevorzugt in Form eines Sicherheitsdeckels eines Schachtes vor, der zusätzlich zu seiner Verriegelungseinrichtung eine weitere Sicherungseinrichtung aufweißt, die den unbefugten Zugang zu dem hinter oder unter der Verschlusseinrichtung liegenden Raum erheblich erschwert. Diese zusätzliche Sicherungseinrichtung hat zudem den Vorteil, dass sie nur geringe Kosten verursacht.The invention thus provides a closure device preferably in the form of a safety cover of a shaft, in addition to its Locking device has a further security device, which makes the unauthorized access to the space behind or below the closure device considerably more difficult. This additional security device also has the advantage that it causes only low costs.

Weitere Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung einer bevorzugten Ausführungsform sowie anhand der Zeichnungen. Dabei zeigen:

Fig. 1
Eine perspektivische Aufsicht auf einen Sicherheitsdeckel eines Schachtes;
Fig. 2
Eine vergrößerte Darstellung aus Fig. 1 im Bereich eines Handgriffs im funktionsfähigen Ausgangszustand;
Fig. 3
Eine Darstellung ähnlich Fig. 2, jedoch mit aufgebogenen Haltezungen und
Fig. 4
Die Freigabe des Handgriffs.
Further details of the invention will become apparent from the following description of a preferred embodiment and from the drawings. Showing:
Fig. 1
A perspective view of a safety cover of a shaft;
Fig. 2
An enlarged view Fig. 1 in the range of a handle in the functional initial state;
Fig. 3
A representation similar Fig. 2 , but with bent tabs and
Fig. 4
The release of the handle.

In Fig. 1 ist ein Sicherheitsdeckel 1 eines nicht dargestellten Schachtes gezeigt. Dieser Sicherheitsdeckel 1 befindet sich unterhalb des in der Regel aus Beton oder Gusseisen bestehenden, ein oder mehrteiligen Deckels, mit dem der Schacht bündig mit seiner Umgebung verschlossen wird.In Fig. 1 a security cover 1 of a shaft, not shown, is shown. This safety cover 1 is located below the usually consisting of concrete or cast iron, one or more parts lid, with which the shaft is flush with its surroundings.

Der Sicherheitsdeckel 1 hat ein mit einem Spezialschlüssel zu betätigendes Schloß 2, mit dem an der Unterseite des Sicherheitsdeckels 1 angeordnete, nicht dargestellte Riegel betätigbar sind, um den Sicherheitsdeckel 1 an einem Schachtrahmen lösbar zu befestigen. Wenn Arbeiten in dem Schacht durchzuführen sind, wird der Sicherheitsdeckel 1 entriegelt und mit Hilfe von vier Handgriffen 3 vom Schacht entfernt.The safety cover 1 has a with a special key to be operated lock 2, with the arranged on the underside of the safety cover 1, not shown latch are actuated to releasably secure the safety cover 1 to a manhole frame. When work is to be performed in the manhole, the safety cover 1 is unlocked and removed from the manhole by means of four handles 3.

Um zu verhindern, dass der Sicherheitsdeckel von Unbefugten, die das Schloß 2 zum Entriegeln nicht betätigen können, gewaltsam aus seiner verriegelten Stellung herausgerissen werden kann, sind die Handgriffe 3 auf besondere Weise mittels Querleisten 4 an dem Sicherheitsdeckel 1 befestigt. Die Querleisten 4, die aus einem Stahlblech einer Dicke von 3 mm bestehen können, sind an dem ebenfalls aus Stahl bestehenden Sicherheitsdeckel 1 angeschweißt.In order to prevent the safety cover from being torn out of its locked position by unauthorized persons who can not operate the lock 2 for unlocking, the handles 3 are fastened to the safety cover 1 in a special way by means of transverse strips 4. The transverse strips 4, which may consist of a steel sheet of a thickness of 3 mm, are welded to the likewise made of steel safety cover 1.

Fig. 4 zeigt, dass jeder Handgriff 5 im wesentlichen eine U-Form hat mit einem in der Gebrauchslage oberen querverlaufenden Steg 6 und zwei parallelen Seitenstegen 7, deren untere Enden sich in kurzen aufeinander zu verlaufenden Haltestegen 8 fortsetzen, die parallel zu dem oberen Steg 6 sind. Fig. 4 shows that each handle 5 has a substantially U-shape with a top in the use position transverse web 6 and two parallel side webs 7, the lower ends continue in short successive support webs 8, which are parallel to the upper web 6.

Die Querleisten 4 haben querschnittlich eine gewölbte Form, derart, dass sie von den Haltestegen 8 der Handgriffe 5 untergriffen werden können. Die Querleisten 4 haben im Bereich jedes Handgriffs 5 im Abstand der parallelen Stege 7 jedes Handgriffs 5 zwei bis zum Rand 9 der Querleisten 4 durchgehende Aussparungen oder Ausschnitte 10, durch die die Handgriffe 5 hindurchgehen. Der seitliche Randbereich der Querleisten 4 ist so in Richtung des Sicherheitsdeckels gebogen, dass die kurzen Stege 8 ohne störendes seitliches Spiel in den Querleisten 4 gehalten sind. Die Querleisten 4 sind auf der Oberseite des Sicherheitsdeckels 1 angeschweißt, was durch Schweißnähte 11 angedeutet ist.The transverse strips 4 have a cross-sectionally curved shape, such that they can be undercut by the retaining webs 8 of the handles 5. The transverse strips 4 have in the region of each handle 5 at a distance of the parallel webs 7 of each handle 5 two to the edge 9 of the transverse strips 4 continuous recesses or cutouts 10 through which pass the handles 5. The lateral edge region of the transverse strips 4 is bent in the direction of the safety cover such that the short webs 8 are held in the transverse strips 4 without disturbing lateral play. The transverse strips 4 are welded to the top of the safety cover 1, which is indicated by welds 11.

Die Querleisten 4 haben in dem die kurzen Stege 8 überdeckenden Bereichen Einschnitte 12, 13, die durch die Materialwand hindurchgehen. Die Einschnitte 12 verlaufen parallel zu den kurzen Stegen 8, während die Einschnitte 13 bevorzugt rechtwinklig hierzu in Richtung der Randkanten der Querleisten 4 verlaufen, wobei sie natürlich im Abstand von diesen Randkanten enden. Hierdurch sind freigeschnittene Zungen 14 gebildet, die im Ausgangszustand der Fig. 2 ebenso gekrümmt sind wie die benachbarten Bereiche der Querleisten 4. Die Zungen haben eine Breite, die gleich oder größer als die Länge der kurzen Stege 8 ist. Bei Einwirken einer eine vorbestimmte Größe übersteigenden Zugkraft auf die Handgriffe 5 werden die Zungen 14 aufgebogen, was in den Figuren 3 und 4 schematisch dargestellt ist, so dass die kurzen Stege 8 aus den hierdurch sich ergebenden Öffnungen 15 in den Querleisten 4 austreten können.The transverse strips 4 have in the short webs 8 overlapping areas incisions 12, 13, which pass through the material wall. The notches 12 extend parallel to the short webs 8, while the cuts 13 preferably extend at right angles thereto in the direction of the marginal edges of the transverse strips 4, wherein they naturally terminate at a distance from these marginal edges. As a result, cut-free tongues 14 are formed, which in the initial state of Fig. 2 are as curved as the adjacent regions of the transverse strips 4. The tongues have a width which is equal to or greater than the length of the short webs 8. Upon application of a predetermined magnitude exceeding tensile force on the handles 5, the tongues 14 are bent, which in the Figures 3 and 4 is shown schematically, so that the short webs 8 can escape from the resulting thereby openings 15 in the transverse strips 4.

Es wird betont, dass die Erfindung nicht auf die beschriebenen und dargestellten Ausführungsformen beschränkt ist. Vielmehr sind alle offenbarten Merkmale auf jede Weise einzeln miteinander kombinierbar.It is emphasized that the invention is not limited to the described and illustrated embodiments. Rather, all disclosed features can be individually combined with each other in any way.

Claims (8)

Verriegelbare Verschlusseinrichtung mit wenigstens einem Handgriff zum Öffnen oder Entfernen der Verschlusseinrichtung, wobei der wenigstens eine Handgriff (5) bei Einwirkung einer eine vorbestimmte Größe übersteigenden Zugkraft sich von der Verschlusseinrichtung löst,
dadurch gekennzeichnet,
dass der wenigstens eine Handgriff teilweise von einer Materialschicht überdeckt ist, die an der Verschlusseinrichtung befestigt ist und dass die Materialschicht an dem den wenigstens einen Handgriff (5) überdeckenden Bereich oder an den den wenigstens einen Handgriff (5) überdeckenden Bereichen Einschnitte (12,13) aufweist, derart, dass diese Bereiche zur Freigabe des wenigstens einen Handgriffs (5) verformbar sind.Lockable closure device having at least one handle for opening or removing the closure device, wherein the at least one handle (5) releases from the closure device when a tensile force exceeds a predetermined size,
characterized,
in that the at least one handle is partially covered by a layer of material which is fastened to the closure device and in that the material layer is provided on the region covering the at least one handle (5) or on the regions (12, 13) which cover the at least one handle (5) ), such that these areas for releasing the at least one handle (5) are deformable. Verriegelbare Verschlusseinheit nach Anspruch 1,
dadurch gekennzeichnet,
dass die Verschlusseinrichtung ein Sicherheitsdeckel (1) für einen Schacht ist.Lockable locking unit according to claim 1,
characterized,
that the closure device is a safety cover (1) for a shaft. Verriegelbare Verschlusseinrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die Materialschicht ein Stahlblech ist.Lockable closure device according to claim 1 or 2,
characterized,
that the material layer is a steel sheet. Verriegelbare Verschlusseinreichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass die Einschnitte (12,13) durch Laserstrahlen ausgebildet sind.Lockable closure device according to claim 1,
characterized,
that the incisions (12,13) are formed by laser beams. Verriegelbare Verschlusseinrichtung nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
dass der wenigstens eine Handgriff (5) im wesentlichen eine U-Form hat mit nach innen weisenden kurzen Stegen (8) an den Enden der parallelen Stege (7) und dass diese kurzen Stege (8) von durch die Einschnitte (12,13) freigeschnittenen Zungen (14) der Materialschicht überdeckt sind.Lockable closure device according to one of claims 1 to 4,
characterized,
in that the at least one handle (5) has a substantially U-shape with inwardly pointing short webs (8) at the ends of the parallel ones Webs (7) and that these short webs (8) of the incisions (12,13) cut free tongues (14) of the material layer are covered. Verriegelbare Verschlusseinheit nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
dass die Materialschicht die Form einer Querleiste (4) hat, die zwei beabstandete Handgriffe (5) hält.Lockable closure unit according to one of claims 1 to 5,
characterized,
in that the material layer has the shape of a transverse strip (4) which holds two spaced handles (5). Verriegelbare Verschlusseinheit nach Anspruch 6,
dadurch gekennzeichnet,
dass zwei Querleisten (4) mit jeweils zwei Handgriffen (5) an der Verschlusseinrichtung befestigt sind.Lockable closure unit according to claim 6,
characterized,
in that two transverse strips (4) are fastened to the closure device with two handles (5) each. Verriegelbare Verschlusseinrichtung nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
dass die Handgriffe (5) aus Rundstahl bestehen.Lockable closure device according to one of claims 1 to 7,
characterized,
that the handles (5) consist of round steel.
EP20090002243 2008-03-04 2009-02-18 Locking closing device Not-in-force EP2281951B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810012489 DE102008012489A1 (en) 2008-03-04 2008-03-04 Lockable closure device

Publications (2)

Publication Number Publication Date
EP2281951A1 true EP2281951A1 (en) 2011-02-09
EP2281951B1 EP2281951B1 (en) 2012-08-01

Family

ID=40428247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090002243 Not-in-force EP2281951B1 (en) 2008-03-04 2009-02-18 Locking closing device

Country Status (2)

Country Link
EP (1) EP2281951B1 (en)
DE (1) DE102008012489A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5423627A (en) 1994-07-12 1995-06-13 Abercrombie; Evan W. Light weight vault lid
FR2780996A1 (en) * 1998-07-10 2000-01-14 Norinco DEVICE FOR LOCKING AND UNLOCKING WITH A KEY OF A BUFFER ON A FRAME
EP1243705A1 (en) * 2001-03-23 2002-09-25 Societe De Transformation Industrielle De Materiels Orthopediques, Medicaux Plastiques Sigle "Trioplast" Safety cover for closing openings at waste water purification plants

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802056A (en) * 1970-01-07 1974-04-09 Chandler Res Inst Method of making self-refrigerating and heating food containers
GB1600493A (en) * 1977-07-18 1981-10-14 Clark F S Access cover
US4919564A (en) * 1988-12-15 1990-04-24 David L. Neathery Manhole insert
US5123776A (en) * 1991-01-31 1992-06-23 Advanced Drainage Systems, Inc. Plastic fillable manhole cover with penetrating handles
GB0108608D0 (en) * 2001-04-05 2001-05-23 Alpa Ind Ltd Security storage device
US20040040221A1 (en) * 2002-08-26 2004-03-04 Michael Airheart Molded manhole unit
FR2893642B1 (en) * 2005-11-21 2008-01-11 Norinco Soc Par Actions Simpli DEVICE FOR PREVENTING THE PASSAGE OF INSECTS, SUCH AS MOSQUITOES, THROUGH A ROAD EQUIPMENT

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5423627A (en) 1994-07-12 1995-06-13 Abercrombie; Evan W. Light weight vault lid
FR2780996A1 (en) * 1998-07-10 2000-01-14 Norinco DEVICE FOR LOCKING AND UNLOCKING WITH A KEY OF A BUFFER ON A FRAME
EP1243705A1 (en) * 2001-03-23 2002-09-25 Societe De Transformation Industrielle De Materiels Orthopediques, Medicaux Plastiques Sigle "Trioplast" Safety cover for closing openings at waste water purification plants

Also Published As

Publication number Publication date
EP2281951B1 (en) 2012-08-01
DE102008012489A1 (en) 2009-09-17

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