WO2005038150A1 - Lid for a shaft cover and shaft cover - Google Patents
Lid for a shaft cover and shaft cover Download PDFInfo
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- WO2005038150A1 WO2005038150A1 PCT/EP2004/010195 EP2004010195W WO2005038150A1 WO 2005038150 A1 WO2005038150 A1 WO 2005038150A1 EP 2004010195 W EP2004010195 W EP 2004010195W WO 2005038150 A1 WO2005038150 A1 WO 2005038150A1
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- section
- cover
- lid
- lid according
- locking means
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- 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 cover of a manhole cover with a cover body and at least one locking means arranged on the cover body, which has a spring section and an engagement section arranged thereon and engageable with part of a frame. Furthermore, the invention relates to a manhole cover with such a cover and a frame receiving it.
- Manhole covers with such a lock are known and are in diverse use.
- the locking means has a resilient arm, which is formed with its one end on the underside of the cover body on a stiffening rib and with its free other end extends essentially parallel to part of the circumference of the cover.
- a latching lug is provided as the engaging section and sits at its free end transversely to the longitudinal extension of the resilient arm.
- the resilient arm is resiliently movable transversely to its longitudinal extent, the locking lug being correspondingly biased in the direction of the frame by the resilient arm.
- the present invention now proposes to fasten the spring section with its two ends to the cover body and to keep it apart from the cover body and to arrange the engagement section between the two ends of the spring arm.
- the spring section functions in the manner of a leaf spring clamped at both ends. It has been found that the construction according to the invention can be used to implement a lock which functions particularly effectively and at the same time is particularly easy to handle.
- the spring section preferably extends approximately parallel to the cover body.
- a particularly preferred embodiment of the invention is characterized in that the spring section is designed as an annular body which is fastened to the cover body with a holding section which essentially unites the two ends of the spring section. Because in this embodiment the spring section is essentially closed with its two ends to form an annular body, it has the function of a double leaf spring arrangement with two leaf springs arranged in parallel, the one half of the annular body between the ends of which engage portion, the function of the first leaf spring and the second half of the annular body, between the ends of which the holding portion is located, the function of the second leaf spring. With such a construction, the efficiency of the spring action can be increased even further.
- the ring body can have any shape, provided that the spring section is curved so that its two ends meet or are at least or arranged adjacent to one another.
- the ring body can have, for example, approximately the shape of a circle, the engagement section expediently being arranged at a point substantially diametrically opposite the holding section.
- the ring body can also have the shape of an oval, for example, with two, preferably semicircular, curved sections and two essentially elongated sections connecting these curved sections to one another. Because the shape of such an elongated oval is particularly suitable for increasing the spring effect.
- the holding section should preferably be arranged on one elongated section and the engagement section on the other elongated section.
- the elongated section carrying the engagement section can spring back relative to the ends of the curved sections which are connected by this elongated section, as a result of which the annular body can be adapted particularly well to the structural conditions, both in terms of the desired spring action and in terms of space requirements.
- the engagement section expediently has a wedge-shaped catch section, as a result of which the engagement takes place as a catch.
- the latching section is provided with at least one surface inclined in the engagement direction.
- the locking means is usually arranged on the underside of the cover body.
- the locking means should be arranged on the cover body at a distance from the stiffening ribs, which results in a particularly space-saving arrangement of the locking means.
- Figure 1 is a perspective bottom view of a cover of a manhole cover
- Figure 2 is a bottom perspective view of an arrangement of the lid of Figure 1 on a frame
- FIG. 2a shows an enlarged detail view of FIG. 2
- 3 shows a cross section through the arrangement of lid and frame shown in Figure 2
- FIG. 3a shows an enlarged detail view of FIG. 3 in sections.
- a disk-shaped cover 10 is shown in a perspective bottom view, which together with a matching ring-shaped frame, which will be described in more detail later, forms a manhole cover.
- the cover 10 of which the underside is shown in FIG. 1, has a disk-shaped cover body 12, the circumference of which is delimited on its underside by a circumferential web 14 projecting downwards.
- This circumferential web 14 serves as a support when using the cover 10 in a frame, as will be described later.
- the lid body 12 is provided on its underside with radially extending stiffening ribs 16.
- a locking means 20 is arranged, which is provided on its outer side opposite the circumferential web 14 with a radially outwardly directed locking lug 26.
- FIGS. 2 and 3 also show the associated annular frame 30 on which the cover 10 rests and which together with the cover 10 forms the manhole cover.
- the frame 30 in the exemplary embodiment shown has an inwardly projecting, circumferential support surface 32, which lies in a plane that is in the installed state of the frame 30 in FIG
- cover 10 lies with its circumferential, downwardly projecting web 14 on this annular support surface 32 of the cover
- each locking means 20 has in the illustrated
- Cover body 12 extends. In the illustrated embodiment, the
- Ring body formed by a closed strip-shaped element, which is substantially perpendicular to the disc-shaped
- Cover body 12 extends. As can be seen in particular in FIG. 2a, the ring body consists of two approximately U-shaped bends
- the two elongated sections 23 and 24 connect the curved sections 21 and 22 to each other, whereby the one thus formed
- Ring body receives an approximately oval shape.
- the annular connecting means 20 is formed on the underside of the lid body 12 via a holding section 25, while the remaining section of the annular locking means 20 is separated and spaced from the underside of the lid body 12.
- the locking lug 26 is seated in a radially outward arrangement.
- the locking lug 26 is arranged on the ring body of the locking means 20 at a point which is essentially radially opposite the holding section 25.
- the locking means 20 has a mirror-symmetrical shape, the axis of symmetry (not shown) of which runs approximately radially.
- the holding section 25 and the locking lug 26 are also located on the axis of symmetry.
- FIG. 2a in particular reveals that the elongated section 23 carrying the locking lug 26 springs back a little compared to the ends of the curved sections 21, 22 which are connected by this elongated section 23. Therefore, in the illustrated embodiment, the shape of the locking means 20 can at least remind a little of the shape of a butterfly.
- the section of the oval locking means 20 which is exposed relative to the cover body 12 and which is formed by the two curved sections 21, 22, the elongated section 23 and the outer edge sections of the elongated section 24, develops a spring action in the manner of an arrangement formed from two parallel leaf springs in the radial direction with respect to the stationary holding section 25. In this way, the detent 26 is resiliently biased in the radial direction.
- the annular locking means 20 is integrally formed on the cover body 12 with the aid of the holding section 25, the locking means 20 is made of the same material as the cover body 12. This is usually a cast material with which the desired construction is possible due to the construction described above Spring effect of the locking means 20 can be easily achieved.
- the cover 10 is locked on the frame 30 with the aid of the locking means 20 in that the catch 26 engages under a web 34 which is arranged on the inside of the frame 30 and projects inwards by one on the outside of the Latch 26 formed inclined surface 28 comes into contact with a correspondingly inclined counter surface formed on the underside of the web 34.
- the locking lug 26 is subjected to a forced movement in the direction of the center of the cover 10 against the radial bias exerted by the oval locking means 20.
- the oval locking means 20 buckles a little in the direction of the holding section 25 by shortening the distance between the two elongated sections 23 and 24 accordingly.
- the same temporary change in shape of the oval locking means 20, which is favored by the construction described above, also occurs when the cover 10 is pulled out of the frame 30 and thereby the locking lug 26 is brought out of engagement by the counter surface 36 on the frame 30.
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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)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Sewage (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Closures For Containers (AREA)
Abstract
Description
Deckel einer Schachtabdeckung sowie Schachtabdeckung Cover of a manhole cover and manhole cover
Die Erfindung betrifft einen Deckel einer Schachtabdeckung mit einem Deckelkörper und mindestens einem am Deckelkörper angeordneten Verriegelungsmittel, dass einen Federabschnitt und einen daran angeordneten und mit einem Teil eines Rahmens in Eingriff bringbaren Eingriffsabschnitt aufweist. Ferner betrifft die Erfindung eine Schachtabdeckung mit einem solchen Deckel und einem diesen aufnehmenden Rahmen.The invention relates to a cover of a manhole cover with a cover body and at least one locking means arranged on the cover body, which has a spring section and an engagement section arranged thereon and engageable with part of a frame. Furthermore, the invention relates to a manhole cover with such a cover and a frame receiving it.
Schachtabdeckungen mit einer derartigen Verriegelung, deren Eingriff gewöhnlich nach Art einer Arretierung oder Rastung stattfindet, sind bekannt und befinden sich vielfältig im Einsatz. Beispielsweise wird hierzu auf die WO 86/04624 verwiesen, die einen selbstverriegelnden Mannloch-Deckel offenbart, bei dem das Verriegelungsmittel einen federnden Arm aufweist, der mit seinem einen Ende an der Unterseite des Deckelkörpers an einer Versteifungsrippe angeformt ist und sich mit seinem freien anderen Ende im Wesentlichen zu einem Teil des Umfanges des Deckels parallel an diesem erstreckt. Als Eingriffsabschnitt ist eine Rastnase vorgesehen, die quer zur Längserstreckung des federnden Armes an dessen freiem Ende sitzt. Zum Einrasten bzw. Lösen der Rastnase in eine bzw. von einer entsprechenden Aussparung im Rahmen ist der federnde Arm quer zu seiner Längserstreckung federnd beweglich, wobei die Rastnase durch den federnden Arm in Richtung auf den Rahmen entsprechend vorgespannt ist.Manhole covers with such a lock, the engagement of which usually takes the form of a locking or latching action, are known and are in diverse use. For example, reference is made to WO 86/04624, which discloses a self-locking manhole cover, in which the locking means has a resilient arm, which is formed with its one end on the underside of the cover body on a stiffening rib and with its free other end extends essentially parallel to part of the circumference of the cover. A latching lug is provided as the engaging section and sits at its free end transversely to the longitudinal extension of the resilient arm. To lock or release the locking lug in or from a corresponding recess in the frame, the resilient arm is resiliently movable transversely to its longitudinal extent, the locking lug being correspondingly biased in the direction of the frame by the resilient arm.
Die vorliegende Erfindung schlägt nun vor, den Federabschnitt jeweils mit seinen beiden Enden am Deckelkörper zu befestigen und im Übrigen vom Deckelkörper getrennt zu halten und den Eingriffsabschnitt zwischen den beiden Enden des Federarmes anzuordnen.The present invention now proposes to fasten the spring section with its two ends to the cover body and to keep it apart from the cover body and to arrange the engagement section between the two ends of the spring arm.
Aufgrund der erfindungsgemäßen Konstruktion funktioniert der Federabschnitt nach Art einer an ihren beiden Enden eingespannten Blattfeder. Dabei hat sich herausgestellt, dass mit der erfindungsgemäßen Konstruktion eine Verriegelung realisiert werden kann, die besonders effektiv funktioniert und zugleich besonders einfach zu handhaben ist.Due to the construction according to the invention, the spring section functions in the manner of a leaf spring clamped at both ends. It has been found that the construction according to the invention can be used to implement a lock which functions particularly effectively and at the same time is particularly easy to handle.
Vorzugsweise erstreckt sich der Federabschnitt etwa parallel zum Deckelkörper.The spring section preferably extends approximately parallel to the cover body.
Eine besonders bevorzugte Ausführung der Erfindung zeichnet sich dadurch aus, dass der Federabschnitt als Ringkörper ausgebildet ist, der mit einem die beiden Enden des Federabschnittes im Wesentlichen vereinenden Halteabschnitt am Deckelkörper befestigt ist. Dadurch, dass bei dieser Ausführung der Federabschnitt mit seinen beiden Enden im Wesentlichen zu einem Ringkörper geschlossen ist, erhält er die Funktion einer Doppel-Blattfeder-Anordnung mit zwei parallel angeordneten Blattfedern, wobei die eine Ringkörperhälfte, zwischen deren Enden der Eingriffsabschnitt sitzt, die Funktion der ersten Blattfeder und die zweite Ringkörperhälfte, zwischen deren Enden der Halteabschnitt liegt, die Funktion der zweiten Blattfeder. Mit einer solchen Konstruktion lässt sich die Effizienz der Federwirkung noch weiter erhöhen.A particularly preferred embodiment of the invention is characterized in that the spring section is designed as an annular body which is fastened to the cover body with a holding section which essentially unites the two ends of the spring section. Because in this embodiment the spring section is essentially closed with its two ends to form an annular body, it has the function of a double leaf spring arrangement with two leaf springs arranged in parallel, the one half of the annular body between the ends of which engage portion, the function of the first leaf spring and the second half of the annular body, between the ends of which the holding portion is located, the function of the second leaf spring. With such a construction, the efficiency of the spring action can be increased even further.
Grundsätzlich kann der Ringkörper jede Form aufweisen, sofern der Federabschnitt so gekrümmt ist, dass seine beiden Enden sich treffen oder zumindest bzw. benachbart zueinander angeordnet sind.In principle, the ring body can have any shape, provided that the spring section is curved so that its two ends meet or are at least or arranged adjacent to one another.
Der Ringkörper kann beispielsweise etwa die Form eines Kreises haben, wobei zweckmäßigerweise der Eingriffsabschnitt an einer im Wesentlichen diametral dem Halteabschnitt gegenüberliegenden Stelle angeordnet ist.The ring body can have, for example, approximately the shape of a circle, the engagement section expediently being arranged at a point substantially diametrically opposite the holding section.
Alternativ kann der Ringkörper beispielsweise aber auch die Form eines Ovals mit zwei, vorzugsweise halbkreisförmig, gebogenen Sektionen und zwei diese gebogenen Sektionen miteinander verbindenden, im Wesentlichen länglichen Sektionen haben. Denn die Form eines solchen länglichen Ovals eignet sich insbesondere zur Erhöhung der Federwirkung. Der Halteabschnitt sollte vorzugsweise an der einen länglichen Sektion und der Eingriffsabschnitt an der anderen länglichen Sektion angeordnet sein. Vorzugsweise kann die den Eingriffsabschnitt tragende längliche Sektion gegenüber den durch diese längliche Sektion miteinander verbundenen Enden der gebogenen Sektionen zurückspringen, wodurch sich der Ringkörper sowohl hinsichtlich der gewünschten Federwirkung als auch hinsichtlich des Raumbedarfes an die konstruktiven Gegebenheiten besonders gut anpassen lässt.Alternatively, however, the ring body can also have the shape of an oval, for example, with two, preferably semicircular, curved sections and two essentially elongated sections connecting these curved sections to one another. Because the shape of such an elongated oval is particularly suitable for increasing the spring effect. The holding section should preferably be arranged on one elongated section and the engagement section on the other elongated section. Preferably, the elongated section carrying the engagement section can spring back relative to the ends of the curved sections which are connected by this elongated section, as a result of which the annular body can be adapted particularly well to the structural conditions, both in terms of the desired spring action and in terms of space requirements.
Zweckmäßigerweise weist der Eingriffsabschnitt einen keilförmigen Rastabschnitt auf, wodurch der Eingriff als Rastung stattfindet. Demnach ist der Rastabschnitt mit mindestens einer in Eingriffsrichtung geneigten Fläche versehen. Zusätzlich ist es aber auch denkbar, zum leichteren Lösen eine in entgegengesetzter Richtung ebenfalls geneigte Fläche am Rastabschnitt auszubilden. Alternativ oder zusätzlich ist es aber auch denkbar, die entsprechenden Eingriffsflächen am Rahmenteil keilförmig bzw. geneigt als Schrägflächen auszubilden.The engagement section expediently has a wedge-shaped catch section, as a result of which the engagement takes place as a catch. Accordingly, the latching section is provided with at least one surface inclined in the engagement direction. In addition, it is also conceivable to make it easier Detach a surface that is also inclined in the opposite direction on the latching section. Alternatively or additionally, it is also conceivable to design the corresponding engagement surfaces on the frame part in a wedge-shaped or inclined manner as inclined surfaces.
Gewöhnlich ist das Verriegelungsmittel an der Unterseite des Deckelkörpers angeordnet.The locking means is usually arranged on the underside of the cover body.
Sofern der Deckel mit Versteifungsrippen versehen ist, sollte das Verriegelungsmittel beabstandet von den Versteifungsrippen am Deckelkörper angeordnet sein, wodurch sich eine besonders platzsparende Anordnung des Verriegelungsmittels ergibt.If the cover is provided with stiffening ribs, the locking means should be arranged on the cover body at a distance from the stiffening ribs, which results in a particularly space-saving arrangement of the locking means.
Schließlich sei noch der Vollständigkeit halber erwähnt, dass gewöhnlich mindestens zwei Verriegelungsmittel am Deckel vorgesehen sein sollten, die voneinander beabstandet angeordnet sind und gewöhnlich einander gegenüberliegen und bei kreisförmigem Deckel einander radial gegenüberliegen.Finally, for the sake of completeness, it should be mentioned that usually at least two locking means should be provided on the cover, which are arranged at a distance from one another and are usually opposite one another and are radially opposite one another in the case of a circular cover.
Nachfolgend wird ein bevorzugtes Ausführungsbeispiel der Erfindung anhand der beiliegenden Figuren näher erläutert. Es zeigen:A preferred exemplary embodiment of the invention is explained in more detail below with reference to the accompanying figures. Show it:
Figur 1 eine perspektivische Unteransicht auf einen Deckel einer Schachtabdeckung; Figur 2 eine perspektivische Unteransicht auf eine Anordnung des Deckels von Figur 1 auf einem Rahmen; Figur 2a eine vergrößerte ausschnittsweise Detailansicht von Figur 2; Figur 3 einen Querschnitt durch die in Figur 2 gezeigte Anordnung von Deckel und Rahmen; und Figur 3a eine vergrößerte abschnittsweise Detailansicht von Figur 3. In Figur 1 ist in perspektivischer Unteransicht ein scheibenförmiger Deckel 10 dargestellt, der zusammen mit einem dazu passenden ringförmigen Rahmen, der noch an späterer Stelle näher beschrieben wird, eine Schachtabdeckung bildet.Figure 1 is a perspective bottom view of a cover of a manhole cover; Figure 2 is a bottom perspective view of an arrangement of the lid of Figure 1 on a frame; FIG. 2a shows an enlarged detail view of FIG. 2; 3 shows a cross section through the arrangement of lid and frame shown in Figure 2; and FIG. 3a shows an enlarged detail view of FIG. 3 in sections. In FIG. 1, a disk-shaped cover 10 is shown in a perspective bottom view, which together with a matching ring-shaped frame, which will be described in more detail later, forms a manhole cover.
Der Deckel 10, von dem in Figur 1 die Unterseite erkennbar dargestellt ist, weist einen scheibenförmigen Deckelkörper 12 auf, dessen Umfang an seiner Unterseite von einem nach unten vorspringenden umlaufenden Steg 14 begrenzt wird. Dieser umlaufende Steg 14 dient als Auflager beim Einsatz des Deckels 10 in einem Rahmen, wie an späterer Stelle noch beschrieben wird. Ferner ist der Deckelkörper 12 an seiner Unterseite mit sich radial erstreckenden Versteifungsrippen 16 versehen.The cover 10, of which the underside is shown in FIG. 1, has a disk-shaped cover body 12, the circumference of which is delimited on its underside by a circumferential web 14 projecting downwards. This circumferential web 14 serves as a support when using the cover 10 in a frame, as will be described later. Furthermore, the lid body 12 is provided on its underside with radially extending stiffening ribs 16.
An zwei radial gegenüberliegenden Stellen ist zwischen jeweils zwei benachbarten Rippen 16 und dem umlaufenden Steg 12 an der Unterseite des Deckelkörpers 12 jeweils ein Verriegelungsmittel 20 angeordnet, das an ihrer dem umlaufenden Steg 14 gegenüberliegenden Außenseite mit einer radial nach außen gerichteten Rastnase 26 versehen ist.At two radially opposite points between each two adjacent ribs 16 and the circumferential web 12 on the underside of the cover body 12, a locking means 20 is arranged, which is provided on its outer side opposite the circumferential web 14 with a radially outwardly directed locking lug 26.
In den Figuren 2 und 3 ist zusätzlich der zugehörige ringförmige Rahmen 30 dargestellt, auf dem der Deckel 10 aufliegt und der gemeinsam mit dem Deckel 10 die Schachtabdeckung bildet. Wie insbesondere Figur 3a erkennen lässt, weist der Rahmen 30 im dargestellten Ausführungsbeispiel an seiner Innenseite eine nach innen vorspringende, umlaufende Auflagefiäche 32 auf, die in einer Ebene liegt, die sich im eingebauten Zustand des Rahmens 30 imFIGS. 2 and 3 also show the associated annular frame 30 on which the cover 10 rests and which together with the cover 10 forms the manhole cover. As can be seen in particular in FIG. 3a, the frame 30 in the exemplary embodiment shown has an inwardly projecting, circumferential support surface 32, which lies in a plane that is in the installed state of the frame 30 in FIG
Wesentlichen horizontal erstreckt. Bei im Rahmen 30 eingesetztemExtends essentially horizontally. When used in the frame 30
Deckel 10 liegt der Deckel 10 mit seinem umlaufenden, nach unten vorspringenden Steg 14 auf dieser ringförmigen Auflagefläche 32 desCover 10, the cover 10 lies with its circumferential, downwardly projecting web 14 on this annular support surface 32 of the
Rahmens 30 auf, so dass die Auflagefläche 32 als Lager für den Deckel 10 am Rahmen 30 dient. Bei Einsatz im Rahmen 30 wird der Deckel 10 am Rahmen 30 verriegelt. Hierzu sind die bereits zuvor erwähnten, an der Unterseite des Deckelkörpers 12 angebrachten Verriegelungsmittel 20 vorgesehen.Frame 30, so that the bearing surface 32 serves as a bearing for the lid 10 on the frame 30. When used in the frame 30, the lid 10 is locked on the frame 30. For this purpose, the locking means 20 already mentioned above, which are attached to the underside of the cover body 12, are provided.
Der genaue Aufbau der Verriegelungsmittel 20 ist insbesondere in Figur 2a erkennbar. Jedes Verriegelungsmittel 20 weist im dargestelltenThe exact structure of the locking means 20 can be seen in particular in FIG. 2a. Each locking means 20 has in the illustrated
Ausführungsbeispiel einen geschlossenen Ringkörper auf, der in einerEmbodiment a closed ring body in a
Ebene liegt, die sich im Wesentlichen parallel zum scheibenförmigenPlane lying essentially parallel to the disc-shaped
Deckelkörper 12 erstreckt. Im dargestellten Ausführungsbeispiel wird derCover body 12 extends. In the illustrated embodiment, the
Ringkörper von einem geschlossenen streifenförmigen Element gebildet, das sich im Wesentlichen rechtwinklig zum scheibenförmigenRing body formed by a closed strip-shaped element, which is substantially perpendicular to the disc-shaped
Deckelkörper 12 erstreckt. Wie insbesondere Figur 2a ferner erkennen lässt, besteht der Ringkörper aus zwei etwa U-förmig gebogenenCover body 12 extends. As can be seen in particular in FIG. 2a, the ring body consists of two approximately U-shaped bends
Sektionen 21 und 22 sowie zwei im Wesentlichen länglichen SektionenSections 21 and 22 and two substantially elongated sections
23 und 24. Die beiden länglichen Sektionen 23 und 24 verbinden die gebogenen Sektionen 21 und 22 miteinander, wodurch der so gebildete23 and 24. The two elongated sections 23 and 24 connect the curved sections 21 and 22 to each other, whereby the one thus formed
Ringkörper eine etwa ovale Form erhält.Ring body receives an approximately oval shape.
An der zur Mitte des Deckelkörpers 12 gerichteten länglichen Sektion 24 ist das ringförmige Verbindungsmittel 20 über einen Halteabschnitt 25 an der Unterseite des Deckelkörpers 12 angeformt, während der übrige Abschnitt des ringförmigen Verriegelungsmittels 20 von der Unterseite des Deckelkörpers 12 getrennt und beabstandet angeordnet ist.On the elongated section 24 directed towards the center of the lid body 12, the annular connecting means 20 is formed on the underside of the lid body 12 via a holding section 25, while the remaining section of the annular locking means 20 is separated and spaced from the underside of the lid body 12.
An der dem Rand des Deckels 10 gegenüberliegenden länglichen Sektion 23 sitzt die Rastnase 26 in radial nach außen gerichteter Anordnung. Dabei ist die Rastnase 26 am Ringkörper des Verriegelungsmittels 20 an einer im Wesentlichen radial dem Halteabschnitt 25 gegenüberliegenden Stelle angeordnet. Wie insbesondere Figur 2a ferner erkennen lässt, weist das Verriegelungsmittel 20 eine spiegelsymmetrische Form auf, deren (nicht dargestellte) Symmetrieachse etwa radial verläuft. Auf dieser gedachten Symmetrieachse liegen auch der Halteabschnitt 25 und die Rastnase 26.On the elongated section 23 opposite the edge of the cover 10, the locking lug 26 is seated in a radially outward arrangement. In this case, the locking lug 26 is arranged on the ring body of the locking means 20 at a point which is essentially radially opposite the holding section 25. As can also be seen particularly in FIG. 2a, the locking means 20 has a mirror-symmetrical shape, the axis of symmetry (not shown) of which runs approximately radially. On this imagined The holding section 25 and the locking lug 26 are also located on the axis of symmetry.
Ferner lässt insbesondere Figur 2a erkennen, dass die die Rastnase 26 tragende längliche Sektion 23 gegenüber den durch diese längliche Sektion 23 miteinander verbundenen Enden der gebogenen Sektionen 21 , 22 ein wenig zurückspringt. Deshalb kann im dargestellten Ausführungsbeispiel die Form des Verriegelungsmittels 20 auch zumindest ein wenig an die Form eines Schmetterlings erinnern.Furthermore, FIG. 2a in particular reveals that the elongated section 23 carrying the locking lug 26 springs back a little compared to the ends of the curved sections 21, 22 which are connected by this elongated section 23. Therefore, in the illustrated embodiment, the shape of the locking means 20 can at least remind a little of the shape of a butterfly.
Der gegenüber dem Deckelkörper 12 frei liegende Abschnitt des ovalen Verriegelungsmittels 20, welcher von den beiden gebogenen Sektionen 21 , 22, der länglichen Sektion 23 und den äußeren Randabschnitten der länglichen Sektion 24 gebildet wird, entfaltet eine Federwirkung nach Art einer aus zwei parallelen Blattfedern gebildeten Anordnung in radialer Richtung in Bezug auf den stationären Halteabschnitt 25. Auf diese Weise wird die Rastnase 26 in radialer Richtung federnd vorgespannt.The section of the oval locking means 20 which is exposed relative to the cover body 12 and which is formed by the two curved sections 21, 22, the elongated section 23 and the outer edge sections of the elongated section 24, develops a spring action in the manner of an arrangement formed from two parallel leaf springs in the radial direction with respect to the stationary holding section 25. In this way, the detent 26 is resiliently biased in the radial direction.
Da im dargestellten Ausführungsbeispiel das ringförmige Verriegelungsmittel 20 mit Hilfe des Halteabschnittes 25 am Deckelkörper 12 einstückig angeformt ist, besteht das Verriegelungsmittel 20 aus demselben Material wie der Deckelkörper 12. Hierbei handelt es sich gewöhnlich um Gussmaterial, mit dem sich aufgrund der zuvor beschriebenen Konstruktion die gewünschte Federwirkung des Verriegelungsmittels 20 ohne weiteres erzielen lässt.Since, in the exemplary embodiment shown, the annular locking means 20 is integrally formed on the cover body 12 with the aid of the holding section 25, the locking means 20 is made of the same material as the cover body 12. This is usually a cast material with which the desired construction is possible due to the construction described above Spring effect of the locking means 20 can be easily achieved.
Wie insbesondere Figur 3a erkennen lässt, findet eine Verrastung des Deckels 10 am Rahmen 30 mit Hilfe der Verriegelungsmittel 20 dadurch statt, dass die Rastnase 26 einen an der Innenseite des Rahmens 30 angeordneten und nach innen vorspringenden Steg 34 untergreift, indem eine an der Außenseite der Rastnase 26 ausgebildete Schrägfläche 28 in Anlage an eine an der Unterseite des Steges 34 ausgebildete und entsprechend geneigte Gegenfläche gelangt. Beim Einsetzen des Deckels 10 in den Rahmen 30 wird dabei die Rastnase 26 einer Zwangsbewegung in Richtung auf die Mitte des Deckels 10 entgegen der vom ovalen Verriegelungsmittel 20 ausgeübten radialen Vorspannung unterworfen. Dabei knickt das ovale Verriegelungsmittel 20 in Richtung des Halteabschnittes 25 ein wenig ein, indem der Abstand zwischen den beiden länglichen Sektionen 23 und 24 entsprechend verkürzt wird. Die gleiche temporäre Formveränderung des ovalen Verriegelungsmittels 20, welche durch die zuvor beschriebene Konstruktion begünstigt wird, entsteht auch dann, wenn der Deckel 10 aus dem Rahmen 30 wieder herausgezogen und dadurch die Rastnase 26 außer Eingriff von der Gegenfläche 36 am Rahmen 30 gebracht wird. As can be seen in particular in FIG. 3a, the cover 10 is locked on the frame 30 with the aid of the locking means 20 in that the catch 26 engages under a web 34 which is arranged on the inside of the frame 30 and projects inwards by one on the outside of the Latch 26 formed inclined surface 28 comes into contact with a correspondingly inclined counter surface formed on the underside of the web 34. At the Inserting the cover 10 into the frame 30, the locking lug 26 is subjected to a forced movement in the direction of the center of the cover 10 against the radial bias exerted by the oval locking means 20. The oval locking means 20 buckles a little in the direction of the holding section 25 by shortening the distance between the two elongated sections 23 and 24 accordingly. The same temporary change in shape of the oval locking means 20, which is favored by the construction described above, also occurs when the cover 10 is pulled out of the frame 30 and thereby the locking lug 26 is brought out of engagement by the counter surface 36 on the frame 30.
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HK06113357.4A HK1092848B (en) | 2003-10-09 | 2004-09-13 | Lid for a shaft cover and shaft cover |
| EP04765117A EP1670993B1 (en) | 2003-10-09 | 2004-09-13 | Lid for a shaft cover and shaft cover |
| US10/575,013 US20080028688A1 (en) | 2003-10-09 | 2004-09-13 | Lid for a Shaft Cover and Shaft Cover |
| DE502004005621T DE502004005621D1 (en) | 2003-10-09 | 2004-09-13 | LID OF A BAY COVER AND BAY COVER |
| NO20062057A NO20062057L (en) | 2003-10-09 | 2006-05-08 | Cover for a shaft guard |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20315709U DE20315709U1 (en) | 2003-10-09 | 2003-10-09 | Cover of a manhole cover and manhole cover |
| DE20315709.5 | 2003-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005038150A1 true WO2005038150A1 (en) | 2005-04-28 |
Family
ID=32748419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2004/010195 Ceased WO2005038150A1 (en) | 2003-10-09 | 2004-09-13 | Lid for a shaft cover and shaft cover |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20080028688A1 (en) |
| EP (1) | EP1670993B1 (en) |
| CN (1) | CN100564703C (en) |
| DE (2) | DE20315709U1 (en) |
| NO (1) | NO20062057L (en) |
| WO (1) | WO2005038150A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7588392B2 (en) | 2006-04-24 | 2009-09-15 | Zurn Industries, Llc | Removable grate |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080168719A1 (en) * | 2003-11-28 | 2008-07-17 | Phillip Borunda | Construction hole safety device |
| US9821953B2 (en) * | 2011-05-02 | 2017-11-21 | The Charles Machine Works, Inc. | Apparatus for sealing a vacuum tank door |
| US10214345B1 (en) * | 2011-12-12 | 2019-02-26 | Cameron Gordon Howie | Entryway protective collar |
| DE102014104744A1 (en) * | 2014-04-03 | 2015-10-08 | ACO Severin Ahlmann GmbH & Co Kommanditgesellschaft | Support structure of a cover |
| US10221602B2 (en) | 2016-04-06 | 2019-03-05 | The Charles Machine Works, Inc. | Vacuum system |
| CN106013252B (en) * | 2016-07-04 | 2018-09-18 | 无锡爱路建设有限公司 | The installation method of integrated type resistance to compression well lid and the well lid in new pavement |
| US11059682B2 (en) | 2017-12-21 | 2021-07-13 | The Charles Machine Works, Inc. | Offloading vacuum tank |
| USD895914S1 (en) | 2018-02-15 | 2020-09-08 | The Charles Machine Works, Inc. | Vacuum system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10195902A (en) * | 1996-12-29 | 1998-07-28 | Aron Kasei Co Ltd | Ballhole opening and closing device for manhole cover |
| JP2002038508A (en) * | 2000-07-27 | 2002-02-06 | Hoku Cast:Kk | Locking device of cover for underground structure |
| JP2002061216A (en) * | 2000-08-11 | 2002-02-28 | Nagashima Imono Kk | Closing device for opening of lid body |
| JP2002106232A (en) * | 2000-09-29 | 2002-04-10 | Takiron Co Ltd | Covering lid locking device and covering lid |
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|---|---|---|---|---|
| US1458391A (en) * | 1922-06-26 | 1923-06-12 | Burton Thomas James | Cover for manholes and analogous devices |
| US3623622A (en) * | 1970-07-13 | 1971-11-30 | Westhem Corp Ltd | Safety locking closure |
| USRE30326E (en) * | 1977-07-20 | 1980-07-08 | Trw Inc. | Panel hole closure |
| US4504009A (en) * | 1980-06-24 | 1985-03-12 | The Continental Group, Inc. | Closure having means for retention in tubular container |
| FR2513286B2 (en) * | 1981-09-23 | 1986-06-06 | Pont A Mousson | FLOOR LOOK |
| US5143478A (en) * | 1987-07-23 | 1992-09-01 | Bowman Harold M | Adjustable manhole cover support with spanners |
| EP0506837B1 (en) * | 1989-12-22 | 1995-06-07 | Volkswagen Aktiengesellschaft | Locking device |
| US5201151A (en) * | 1991-10-11 | 1993-04-13 | Ebw, Inc. | Manhole rim and cover assembly |
| US5230433A (en) * | 1992-01-28 | 1993-07-27 | The Procter & Gamble Company | Adult friendly child-resistant attachment for containers used to store potentially dangerous materials |
| US5628152A (en) * | 1995-08-16 | 1997-05-13 | Bowman; Harold M. | Adjustable manhole cover support with shield |
| US5950368A (en) * | 1997-03-17 | 1999-09-14 | Dabico, Inc. | Waterproof pit cover |
| US6955499B2 (en) * | 2000-09-01 | 2005-10-18 | Precision Cover Systems, Inc. | Adjustable utility access |
| PL199335B1 (en) * | 2001-05-04 | 2008-09-30 | Ahlmann Aco Severin | Cover for a drainage device |
| CN2536653Y (en) * | 2002-04-22 | 2003-02-19 | 高献富 | manhole cover assembly |
| CN2578393Y (en) * | 2002-09-29 | 2003-10-08 | 吉信国际贸易（上海）有限公司 | Locking mechanism of spring arm |
-
2003
- 2003-10-09 DE DE20315709U patent/DE20315709U1/en not_active Expired - Lifetime
-
2004
- 2004-09-13 WO PCT/EP2004/010195 patent/WO2005038150A1/en not_active Ceased
- 2004-09-13 DE DE502004005621T patent/DE502004005621D1/en not_active Expired - Lifetime
- 2004-09-13 CN CNB2004800293280A patent/CN100564703C/en not_active Expired - Fee Related
- 2004-09-13 US US10/575,013 patent/US20080028688A1/en not_active Abandoned
- 2004-09-13 EP EP04765117A patent/EP1670993B1/en not_active Expired - Lifetime
-
2006
- 2006-05-08 NO NO20062057A patent/NO20062057L/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10195902A (en) * | 1996-12-29 | 1998-07-28 | Aron Kasei Co Ltd | Ballhole opening and closing device for manhole cover |
| JP2002038508A (en) * | 2000-07-27 | 2002-02-06 | Hoku Cast:Kk | Locking device of cover for underground structure |
| JP2002061216A (en) * | 2000-08-11 | 2002-02-28 | Nagashima Imono Kk | Closing device for opening of lid body |
| JP2002106232A (en) * | 2000-09-29 | 2002-04-10 | Takiron Co Ltd | Covering lid locking device and covering lid |
Non-Patent Citations (3)
| Title |
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| PATENT ABSTRACTS OF JAPAN vol. 1998, no. 12 31 October 1998 (1998-10-31) * |
| PATENT ABSTRACTS OF JAPAN vol. 2002, no. 06 4 June 2002 (2002-06-04) * |
| PATENT ABSTRACTS OF JAPAN vol. 2002, no. 08 5 August 2002 (2002-08-05) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7588392B2 (en) | 2006-04-24 | 2009-09-15 | Zurn Industries, Llc | Removable grate |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1670993A1 (en) | 2006-06-21 |
| DE502004005621D1 (en) | 2008-01-10 |
| NO20062057L (en) | 2006-07-05 |
| CN100564703C (en) | 2009-12-02 |
| EP1670993B1 (en) | 2007-11-28 |
| HK1092848A1 (en) | 2007-02-16 |
| DE20315709U1 (en) | 2004-07-22 |
| CN1997796A (en) | 2007-07-11 |
| US20080028688A1 (en) | 2008-02-07 |
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