EP0115087B1 - Cover for a servicing hole in the form of a sliding shutter - Google Patents

Cover for a servicing hole in the form of a sliding shutter Download PDF

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Publication number
EP0115087B1
EP0115087B1 EP83113262A EP83113262A EP0115087B1 EP 0115087 B1 EP0115087 B1 EP 0115087B1 EP 83113262 A EP83113262 A EP 83113262A EP 83113262 A EP83113262 A EP 83113262A EP 0115087 B1 EP0115087 B1 EP 0115087B1
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EP
European Patent Office
Prior art keywords
cover
chain
guide
cover according
supporting beams
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
Application number
EP83113262A
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German (de)
French (fr)
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EP0115087A1 (en
EP0115087B2 (en
Inventor
Gerd Schulz
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.)
RHEIN-BAYERN FAHRZEUGBAU GMBH & CO. KG
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Rhein-Bayern Fahrzeugbau & Co KG GmbH
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25807454&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0115087(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE19833300463 external-priority patent/DE3300463A1/en
Priority claimed from DE19833345018 external-priority patent/DE3345018A1/en
Application filed by Rhein-Bayern Fahrzeugbau & Co KG GmbH filed Critical Rhein-Bayern Fahrzeugbau & Co KG GmbH
Priority to AT83113262T priority Critical patent/ATE41198T1/en
Publication of EP0115087A1 publication Critical patent/EP0115087A1/en
Application granted granted Critical
Publication of EP0115087B1 publication Critical patent/EP0115087B1/en
Publication of EP0115087B2 publication Critical patent/EP0115087B2/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
    • E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
    • E04H5/06—Pits or building structures for inspection or services

Definitions

  • the invention relates to a roller shutter-like cover for assembly pits, consisting of a plurality of parallel support beams, the ends of which have guide bodies and rest on rails that serve as guides at the edge of the pit, the support beams being connected on the underside by means of chains running parallel to the rails, and can be moved from the cover position into a rest position in the pit and vice versa by a drive motor acting on the chains.
  • a roller shutter-like cover of the type described above can be found, for example, in GB-A-2 060 754.
  • the rails have guide surfaces which are arranged in vertical planes and which cooperate with rollers at the ends of the support beams which move around vertical ones Rotate axes when the cover is in the cover position.
  • the support beams are telescopic and by means of the arrangement described it is possible to cover different pit widths.
  • a plurality of deflection rollers is necessary to form the endless arrangement, which causes an additional assembly effort. With a long installation pit, it becomes difficult to divide the cover into individual parts, which is often desirable.
  • DE-U-1 940 275 describes a cover, for example for swimming pools, which is to be moved in a sliding manner, the cover being designed to be floating and requiring no special guides. A special motor drive is not described
  • each support beam forms a link of a joint block, the joints of which are assigned to the gaps between the support beams and are arranged in the cover position at the lower end of the column that the drive motor with its Sprocket with recesses for the chain joints on the chain during the movement in the covering position and that the guide surfaces of the guides for the guide body of the supporting beams run horizontally in the covering position.
  • the invention provides a solution of how the roller shutter-like cover can also be pushed by means of the drive motor, so that the endless arrangement, which always allows the cover to move by pulling, is avoided. It has been found that through a sensible connection of the three elements, namely the joints with the drive motor, the support of the support beams by the rails, and the guidance of the support beams, for. B. by rolling on the one hand a very resilient construction is created, and on the other hand also the fear of jamming during the sliding movement can be prevented.
  • the guides and guide bodies provided in the invention entail a comparatively small additional outlay if it is taken into account that the additional deflection devices for an endless arrangement are avoided.
  • the slidable roll-like cover for example, in two parts in the case of longer assembly pits, so that one or the other part of the pit is covered, but the other part remains accessible.
  • any sections can be kept open. In particular, guides in the middle of the pit etc. are avoided.
  • the invention also proposes that the driving sprocket is arranged as a deflection wheel between horizontal and vertical guides of the cover. This significantly simplifies the construction. In addition, the advantage is gained that the thrust is introduced by the driven sprocket in a straight line into the relevant part of the cover. This reduces any clamping forces from the outset.
  • the invention also proposes that the guides and guide bodies are arranged at such a height or distance that they do not substantially support the loaded supporting beams.
  • the guide bodies only have the task of providing adequate guidance in the deflection areas and, furthermore, of ensuring that the buckling forces which occur when pushing are absorbed.
  • each support beam has a roller at each end. It is true that several rollers can also be provided, as a result of which any tilting movement of the individual support beam is then completely ruled out. However, it is also sufficient to have a roller at each end, since the supporting beams slide on the associated guides anyway.
  • the assembly pit 14 has rails in the shape of a double T at the upper edge, which are firmly walled in.
  • the double-T rails 11 carry the U-shaped rail guides 10, which include the rollers 8.
  • the U-shaped guides are also permanently installed.
  • the axes 9 of these shafts run in the longitudinal direction of the support beams 1.
  • the height of the support 13, the arrangement of the rollers 8 with respect to the support beam 1 and the U-shaped guides 10 are selected and assigned to one another such that the guides 10 surround the rollers 8 with play, while the support beams rest on the support 13.
  • the arrangement can also be such that the rollers 8 carry a small part of the weight of the support beam 1 when the support beams are not loaded. This makes it easier to move. Since the bearing of the rollers 8 in the supporting beam 1 is somewhat flexible, it will result in the load that the load is taken over the support 13 from the rail 11.
  • rollers 8 are only slightly loaded and that it is nevertheless ensured that the cover has a high load-bearing capacity.
  • the individual supporting beams 1 are fastened to the articulated chain 2 by means of the angled fastening elements 21.
  • This articulated chain 2 has articulated links, the length of which is adapted to the width of the support beam with respect to the width of the gap 3.
  • the chain link 7 is in each case under the gap 3.
  • the thrust for moving the cover 12 is introduced by the drive motor 4 via the sprocket 5 into the link chain 2.
  • the chain wheel has corresponding recesses 6, which act on the chain links 7.
  • the chain wheels 5 for the two link chains connecting the supporting beams are each arranged at the end of the cover when the cover is in the cover position. If the cover is brought into the cover position, the sprocket 5 pushes the part of the cover entering the cover position in front of it.
  • the guide 10 In the area of the deflections, the guide 10 has curve pieces 17 and a further deflection wheel 18. In the vertical part 19 of the guide and also in the guide part 20 on the bottom of the pit 14, a rail for the ends of the supporting beams 1 per se can be dispensed with. However, it is advisable to provide suitable rail elements, albeit of smaller dimensions, with a corresponding support, so that the sliding movement can also be mastered reliably in this area.
  • the links 24 of the articulated chain are fastened to the underside of the supporting beams by means of the screws 23.
  • the chain link 7 is each formed by the bolt 25 and a sleeve 26.
  • the bolt 25 carries at its end the roller 8, which rests on the underside of the rail 11.
  • This rail 11 also forms the support flange for the ends of the beams 1.
  • a plastic support 28 made of a suitable plastic with low friction is mounted on this support flange or the rail 11 by means of the screws 27.
  • the inner edge 29 of the plastic pad 28 cooperates with the outer edge 30 of the chain link 24, so that in this way a guide of the supporting beam 1 is obtained.
  • the angle rail 31 delimits the floor to the side of the cover of the assembly pit.
  • the rollers rest on the rail for the bar ends from below. It is thereby achieved that the rollers do not carry the weight in the event of a possible load on the cover, in particular when driving through a vehicle, and are thus exposed to a defect. This also reduces the width of the guide of the cover and there is no additional assembly effort.
  • insert pieces 38 can for example consist of a well sliding plastic and are inserted into the ends of the support beam 1.
  • the insert pieces 38 can consist, for example, of an upper and a lower part 32 or 33, which leave a gap 34 between them, the gap 34 serving as a guide. In order to ensure smoothness in curves, it is advisable to limit the guiding action to the central region 35, that is to say only in this region to adapt the gap width approximately to the thickness of the guide 36.
  • the guide 36 is, for example, flange-shaped and welded to the angle rail 31. It extends both in the cover area of the pit and in the vertical part of the path of the cover or on the pit floor.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Escalators And Moving Walkways (AREA)
  • Framework For Endless Conveyors (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Description

Die Erfindung betrifft eine rolladenartige Abdeckung für Montagegruben, bestehend aus einer Vielzahl paralleler Tragbalken, deren Enden Führungskörper aufweisen und auf Schienen, die als Führung dienen, am Grubenrand aufliegen, wobei die Tragbalken auf der Unterseite mittels parallel zu den Schienen verlaufender Ketten verbunden sind, und durch einen auf die Ketten wirkenden Antriebsmotor aus der Abdeckstellung in eine Ruhestellung in der Grube und umgekehrt bewegbar ist.The invention relates to a roller shutter-like cover for assembly pits, consisting of a plurality of parallel support beams, the ends of which have guide bodies and rest on rails that serve as guides at the edge of the pit, the support beams being connected on the underside by means of chains running parallel to the rails, and can be moved from the cover position into a rest position in the pit and vice versa by a drive motor acting on the chains.

Eine rolladenartige Abdeckung der vorstehend beschriebenen Art geht beispielsweise hervor aus der GB-A-2 060 754. Bei dieser rolladenartigen Abdeckung besitzen die Schienen Führungsflächen, die in senkrechten Ebenen angeordnet sind, und die mit Rollen an den Enden der Tragbalken zusammenwirken, die um senkrechte Achsen umlaufen, wenn sich die Abdeckung in der Abdeckstellung befindet. Die Tragbalken sind hierbei teleskopartig ausgebildet und mittels der beschriebenen Anordnung ist es möglich, unterschiedliche Grubenbreiten abzudecken.A roller shutter-like cover of the type described above can be found, for example, in GB-A-2 060 754. In this roller shutter-like cover, the rails have guide surfaces which are arranged in vertical planes and which cooperate with rollers at the ends of the support beams which move around vertical ones Rotate axes when the cover is in the cover position. The support beams are telescopic and by means of the arrangement described it is possible to cover different pit widths.

In der DE-A-2 646 395 ist eine andere Abdeckung für Montagegruben beschrieben, wobei die Tragbalken ein Gliederband bilden und die Enden des Gliederbandes über Umlenkrollen' miteinander zu einer endlosen Anordnung verbunden sind.Another cover for assembly pits is described in DE-A-2 646 395, wherein the supporting beams form a link belt and the ends of the link belt are connected to one another via deflecting rollers to form an endless arrangement.

Bei einer solchen Bauweise wird es möglich, mittels des Antriebsmotors auf die Abdeckung bzw. das Gliederband immer wieder einen Zug auszuüben, und zwar sowohl beim Vorgang, der die Abdeckung in die Abdeckstellung bringt, als auch dann, wenn die Abdeckung in eine Ruhestellung am Grubenboden oder an der Grubenwand gebracht wird.With such a construction, it becomes possible to repeatedly pull the cover or link belt by means of the drive motor, both during the process that brings the cover into the cover position and when the cover is in a rest position on the pit floor or brought to the pit wall.

Zur Bildung der endlosen Anordnung ist eine Mehrzahl von Umlenkrollen notwendig, was einen zusätzlichen Montageaufwand verursacht. Bei langer Montagegrube wird es schwierig, die Abdeckung in einzelne Teile zu unterteilen, was oft erwünscht ist.A plurality of deflection rollers is necessary to form the endless arrangement, which causes an additional assembly effort. With a long installation pit, it becomes difficult to divide the cover into individual parts, which is often desirable.

Im DE-U-1 940 275 ist eine Abdeckung beispielsweise für Schwimmbecken beschrieben, die schiebend bewegt werden soll, wobei die Abdeckung schwimmend ausgebildet ist und ohne besondere Führungen auskommt. Ein besondere motorischer Antrieb ist nicht beschriebenDE-U-1 940 275 describes a cover, for example for swimming pools, which is to be moved in a sliding manner, the cover being designed to be floating and requiring no special guides. A special motor drive is not described

Aus der US-A-3 603 046 ist eine andere Abdeckung bekannt, die für eine Montagegrube gedacht ist. Die Abdeckung kann auf Führungen in Stellung gebracht werden.Another cover is known from US-A-3 603 046, which is intended for an assembly pit. The cover can be positioned on guides.

Es ist Aufgabe der Erfindung, eine rolladenartige Abdeckung der eingangs beschriebenen Gattung dahingehend weiterzuentwickeln, daß sie bei Beibehaltung der bekannten Funktionssicherheit mit einem geringeren Montageaufwand auskommt und insbesondere vielseitig einsetzbar wird.It is an object of the invention to further develop a roller shutter-like cover of the type described at the outset in such a way that, while maintaining the known functional reliability, it requires less assembly effort and is particularly versatile.

Zur Lösung dieser Aufgabe geht die Erfindung aus von der eingangs beschriebenen Abdeckung und schlägt vor, daß jeder Tragbalken ein Glied einer Gelenkkotte bildet, deren Gelenke je den Spalten zwischen den Tragbalken zugeordnet und in der Abdeckstellung am unteren Spaltenende angeordnet sind, daß der Antriebsmotor mit seinem Kettenrad mit Ausnehmungen für die Kettengelenke auf die Kette bei der Bewegung in die Abdeckstellung schiebend einwirkt und daß die Führungsflächen der Führungen für die Führungskörper der Tragbalken in der Abdeckstellung horizontal verlaufen.To achieve this object, the invention is based on the cover described above and suggests that each support beam forms a link of a joint block, the joints of which are assigned to the gaps between the support beams and are arranged in the cover position at the lower end of the column that the drive motor with its Sprocket with recesses for the chain joints on the chain during the movement in the covering position and that the guide surfaces of the guides for the guide body of the supporting beams run horizontally in the covering position.

Die Erfindung gibt eine Lösung an, wie die rolladenartige Abdeckung mittels des Antriebsmotors auch geschoben werden kann, so daß die endlose Anordnung, die immer eine Bewegung der Abdeckung durch Ziehen zuläßt, vermieden wird. Es wurde gefunden, daß durch sinnvolle Verbindung der drei Elemente, nämlich der Gelenke mit dem Antriebsmotor, der Unterstützung der Tragbalken durch die Schienen, und der Führung der Tragbalken z. B. durch Rollen einerseits eine sehr gut belastbare Konstruktion geschaffen wird, und andererseits auch die bei der Schiebebewegung zu befürchtende Klemmerscheinung verhindert werden kann. Die bei der Erfindung vorgesehenen Führungen und Führungskörper bringen einen vergleichsweise geringen zusätzlichen Aufwand, wenn dabei in Betracht bezogen wird, daß die zusätzlichen Umlenkeinrichtungen für eine endlose Anordnung vermieden werden.The invention provides a solution of how the roller shutter-like cover can also be pushed by means of the drive motor, so that the endless arrangement, which always allows the cover to move by pulling, is avoided. It has been found that through a sensible connection of the three elements, namely the joints with the drive motor, the support of the support beams by the rails, and the guidance of the support beams, for. B. by rolling on the one hand a very resilient construction is created, and on the other hand also the fear of jamming during the sliding movement can be prevented. The guides and guide bodies provided in the invention entail a comparatively small additional outlay if it is taken into account that the additional deflection devices for an endless arrangement are avoided.

Insbesondere wird es bei der Erfindung möglich, die geschobene rollenartige Abdeckung bei längeren Montagegruben beispielsweise zweiteilig auszubilden, so daß wahlweise der eine oder andere Teil der Grube abgedeckt ist, der andere Teil jedoch zugänglich bleibt. Bei entsprechend langen Abdeckungen können dabei beliebige Teilabschnitte offengehalten werden. Insbesondere werden dabei Führungen in der Grubenmitte usw. vermieden.In particular, it is possible with the invention to form the slidable roll-like cover, for example, in two parts in the case of longer assembly pits, so that one or the other part of the pit is covered, but the other part remains accessible. With correspondingly long covers, any sections can be kept open. In particular, guides in the middle of the pit etc. are avoided.

Die Erfindung schlägt ferner vor, daß das antreibende Kettenrad als Umlenkrad zwischen horizontalen und senkrechten Führungen der Abdeckung angeordnet ist. Hierdurch wird die Bauweise wesentlich vereinfacht. Darüber hinaus wird der Vorteil gewonnen, daß die Schubkraft durch das angetriebene Kettenrad geradlinig in den betreffenden Teil der Abdeckung eingeleitet wird. Dadurch werden von vorneherein etwaige Klemmkräfte vermindert.The invention also proposes that the driving sprocket is arranged as a deflection wheel between horizontal and vertical guides of the cover. This significantly simplifies the construction. In addition, the advantage is gained that the thrust is introduced by the driven sprocket in a straight line into the relevant part of the cover. This reduces any clamping forces from the outset.

Die Erfindung schlägt ferner vor, daß die Führungen und Führungskörper in solcher Höhenlage oder Distanz angeordnet sind, daß sie die belasteten Tragbalken nicht wesentlich unterstützen. Die Führungskörper haben bei der Erfindung nur die Aufgabe, eine ausreichende Führung in den Umlenkbereichen zu ergeben und ferner sicherzustellen, daß die beim Schieben auftretenden Knickkräfte aufgefangen werden.The invention also proposes that the guides and guide bodies are arranged at such a height or distance that they do not substantially support the loaded supporting beams. In the case of the invention, the guide bodies only have the task of providing adequate guidance in the deflection areas and, furthermore, of ensuring that the buckling forces which occur when pushing are absorbed.

Wenn auf die Führungskörper, also z. B. auf die Rollen, keine Traglast einwirkt, die die Abdeckung in der Abdeckstellung aufnehmen muß, können diese Teile und die zugehörigen Führungen vergleichsweise leicht ausgebildet werden, was die Herstellung vereinfacht.If on the guide body, so z. B. acts on the roles, no load that the Cover must be in the cover position, these parts and the associated guides can be made comparatively light, which simplifies production.

Insbesondere schlägt die Erfindung vor, daß jeder Tragbalken an jedem Ende eine Rolle besitzt. Zwar können auch mehrere Rollen vorgesehen werden, wodurch dann eine etwaige Kippbewegung des einzelnen Tragbalkens völlig ausgeschlossen ist. Es genügt aber auch eine Rolle an jedem Ende, da die Tragbalken ohnehin auf den zugehörigen Führungen gleiten.In particular, the invention proposes that each support beam has a roller at each end. It is true that several rollers can also be provided, as a result of which any tilting movement of the individual support beam is then completely ruled out. However, it is also sufficient to have a roller at each end, since the supporting beams slide on the associated guides anyway.

Anstelle einer Bauweise, bei der der Tragbalken jeweils mit dem zugehörigen Glied der Kette verbunden ist, kann der Tragbalken auch selbst ein Teil des Kettengliedes bilden. In diesem Falle wird dann der Gelenkteil des Kettengliedes jeweils am Tragbalken befestigt. Diese und weitere Ausgestaltungen des Gegenstandes nach Anspruch 1, sind den Unteransprüchen zu entnehmen und ergeben sich aus der nachfolgenden Zeichnungsbeschreibung.Instead of a construction in which the support beam is connected to the associated link of the chain, the support beam itself can also form part of the chain link. In this case, the joint part of the chain link is then attached to the supporting beam. These and other refinements of the subject matter of claim 1 can be found in the subclaims and result from the following description of the drawings.

In der Zeichnung sind einige Ausführungsbeispiele der Erfindung schematisch dargestellt. Es zeigen:

  • Fig. 1 eine perspektivische Darstellung eines Teils einer erfindungsgemäßen Abdeckung im eingebauten Zustand,
  • Fig. 2 einen Schnitt durch eine Montagegrube mit einer erfindungsgemäßen Abdeckung,
  • Fig. 3 einen Querschnitt durch die Abdeckung gemäß den Fig. 1 und 2,
  • Fig. 4 und Fig. 5 eine Seitenansicht mit Schnittdarstellung einer Einzelheit der Erfindung,
  • Fig. 6 eine Schnittdarstellung eines anderen Ausführungsbeispiels der Erfindung, und
  • Fig. 7 und Fig. 8 eine Seitenansicht mit Schnittdarstellung eines weiteren Ausführungsbeispiels der Erfindung.
In the drawing, some embodiments of the invention are shown schematically. Show it:
  • 1 is a perspective view of part of a cover according to the invention in the installed state,
  • 2 shows a section through an assembly pit with a cover according to the invention,
  • 3 shows a cross section through the cover according to FIGS. 1 and 2,
  • 4 and 5 is a side view with a sectional view of a detail of the invention,
  • Fig. 6 is a sectional view of another embodiment of the invention, and
  • Fig. 7 and Fig. 8 is a side view with a sectional view of another embodiment of the invention.

Die Montagegrube 14 besitzt am oberen Rand Schienen in Doppel-T-Form, die fest eingemauert sind. Die Doppel-T-Schienen 11 tragen die U-förmigen Schienenführungen 10, die die Rollen 8 umfassen. Auch die U-förmigen Führungen sind fest montiert.The assembly pit 14 has rails in the shape of a double T at the upper edge, which are firmly walled in. The double-T rails 11 carry the U-shaped rail guides 10, which include the rollers 8. The U-shaped guides are also permanently installed.

Die Tragbalken 1, die beispielsweise von einem Rechteckrohr gebildet sind, liegen mit ihren Enden auf der Auflage 13 auf und tragen in ihren Enden Einschubstücke 15 zur Lagerung der Wellen 16 der Rollen 8. Die Achsen 9 dieser Wellen verlaufen dabei in Längsrichtung der Tragbalken 1.The ends of the support beams 1, which are formed, for example, by a rectangular tube, rest on the support 13 and carry insert ends 15 for supporting the shafts 16 of the rollers 8 at their ends. The axes 9 of these shafts run in the longitudinal direction of the support beams 1.

Die Höhe des Auflagers 13, die Anordnung der Rollen 8 bezüglich der Tragbalken 1 und die U-förmigen Führungen 10 sind so gewählt und einander zugeordnet, daß die Führungen 10 die Rollen 8 mit Spiel umfassen, während die Tragbalken auf dem Auflager 13 aufruhen.The height of the support 13, the arrangement of the rollers 8 with respect to the support beam 1 and the U-shaped guides 10 are selected and assigned to one another such that the guides 10 surround the rollers 8 with play, while the support beams rest on the support 13.

Die Anordnung kann aber auch derart getroffen sein, daß bei unbelasteten Tragbalken die Rollen 8 einen geringen Teil des Gewichts der Tragbalken 1 tragen. Hierdurch läßt sich eine leichtere Beweglichkeit erzielen. Da die Lagerung der Rollen 8 im Tragbalken 1 in gewisser Weise nachgiebig ist, wird sich bei der Belastung ergeben, daß die Last über das Auflager 13 von der Schiene 11 übernommen wird.The arrangement can also be such that the rollers 8 carry a small part of the weight of the support beam 1 when the support beams are not loaded. This makes it easier to move. Since the bearing of the rollers 8 in the supporting beam 1 is somewhat flexible, it will result in the load that the load is taken over the support 13 from the rail 11.

Diese Bauweise hat den Vorteil, daß die Rollen 8 nur wenig belastet sind, und daß dennoch sichergestellt ist, daß die Abdeckung eine hohe Tragkraft hat.This design has the advantage that the rollers 8 are only slightly loaded and that it is nevertheless ensured that the cover has a high load-bearing capacity.

Die einzelnen Tragbalken 1 sind beim gezeigten Ausführungsbeispiel mittels der abgewinkelten Befestigungselemente 21 an der Gelenkkette 2 befestigt. Diese Gelenkkette 2 besitzt Gelenkglieder, deren Länge der Tragbalkenbreite bezüglich der Breite des Spaltes 3 angepaßt ist. Das Kettengelenk 7 liegt jeweils unter dem Spalt 3.In the exemplary embodiment shown, the individual supporting beams 1 are fastened to the articulated chain 2 by means of the angled fastening elements 21. This articulated chain 2 has articulated links, the length of which is adapted to the width of the support beam with respect to the width of the gap 3. The chain link 7 is in each case under the gap 3.

Die Schubkraft zur Bewegung der Abdeckung 12 wird vom Antriebsmotor 4 über das Kettenrad 5 in die Gelenkkette 2 eingeleitet. Das Kettenrad besitzt hierfür entsprechende Ausnehmungen 6, die auf die Kettengelenke 7 einwirken. Wie die Fig. 2 erkennen läßt, sind die Kettenräder 5 für die die Tragbalken verbindenden beiden Gelenkketten jeweils am Ende der Abdeckung angeordnet, wenn sich diese in der Abdeckstellung befindet. Wird die Abdeckung in Abdeckstellung gebracht, schiebt das Kettenrad 5 den in die Abdeckstellung einlaufenden Teil der Abdeckung vor sich her.The thrust for moving the cover 12 is introduced by the drive motor 4 via the sprocket 5 into the link chain 2. For this purpose, the chain wheel has corresponding recesses 6, which act on the chain links 7. As can be seen in FIG. 2, the chain wheels 5 for the two link chains connecting the supporting beams are each arranged at the end of the cover when the cover is in the cover position. If the cover is brought into the cover position, the sprocket 5 pushes the part of the cover entering the cover position in front of it.

Da die Schubkraft genau in der Kettenebene eingeleitet wird, ergibt sich wenig Neigung zu einem Aufstellen der Kettenglieder, zumal die Höhenlage der Gelenkkette 2 weitgehend übereinstimmt mit der Höhenlage der Gleitfläche auf der Auflage 13. Ergibt sich ein Widerstand und neigt ein Tragbalken zum Kippen, wird dies von der Rolle 8 in der Führung 10 verhindert.Since the thrust force is introduced exactly in the chain plane, there is little tendency to raise the chain links, especially since the height of the articulated chain 2 largely corresponds to the height of the sliding surface on the support 13. If there is resistance and a support beam tends to tilt, this prevents from the roller 8 in the guide 10.

Die Führung 10 besitzt im Bereich der Umlenkungen Kurvenstücke 17 sowie ein weiteres Umlenkrad 18. Im senkrechten Teil 19 der Führung und auch in, Führungsteil 20 auf dem Boden der Grube 14 kann auf eine Schiene für die Enden der Tragbalken 1 an sich verzichtet werden. Es empfiehlt sich jedoch, auch hier geeignete Schienenelemente, wenn auch geringerer Dimensionierung, mit sinngemäßer Auflage vorzusehen, um die Schiebebewegung auch in diesem Bereich sicher zu beherrschen.In the area of the deflections, the guide 10 has curve pieces 17 and a further deflection wheel 18. In the vertical part 19 of the guide and also in the guide part 20 on the bottom of the pit 14, a rail for the ends of the supporting beams 1 per se can be dispensed with. However, it is advisable to provide suitable rail elements, albeit of smaller dimensions, with a corresponding support, so that the sliding movement can also be mastered reliably in this area.

Beim Ausführungsbeispiel nach der Fig. 6 sind mittels der Schrauben 23 die Glieder 24 der Gelenkkette an der Unterseite der Tragbalken befestigt. Das Kettengelenk 7 wird jeweils von dein Bolzen 25 und einer Hülse 26 gebildet. Der Bolzen 25 trägt an seinem Ende die Rolle 8, welche an der Unterseite der Schiene 11 anliegt. Diese Schiene 11 bildet gleichzeitig den Stützflansch für die Enden der Balken 1. Auf diesem Stützflansch bzw. der Schiene 11 ist zu diesem Zweck mittels der Schrauben 27 eine Kunststoffauflage 28 aus einem geeigneten Kunststoff mit geringer Reibung montiert. Die Innenkante 29 der Kunststoffauflage 28 wirkt dabei mit der Außenkante 30 des Kettenglieds 24 zusammen, so daß auf diese Weise eine Führung des Tragbalkens 1 erhalten wird.In the exemplary embodiment according to FIG. 6, the links 24 of the articulated chain are fastened to the underside of the supporting beams by means of the screws 23. The chain link 7 is each formed by the bolt 25 and a sleeve 26. The bolt 25 carries at its end the roller 8, which rests on the underside of the rail 11. This rail 11 also forms the support flange for the ends of the beams 1. For this purpose, a plastic support 28 made of a suitable plastic with low friction is mounted on this support flange or the rail 11 by means of the screws 27. The inner edge 29 of the plastic pad 28 cooperates with the outer edge 30 of the chain link 24, so that in this way a guide of the supporting beam 1 is obtained.

Die Winkelschiene 31 begrenzt den Fußboden seitlich der Abdeckung der Montagegrube.The angle rail 31 delimits the floor to the side of the cover of the assembly pit.

Durch die Bauweise gemäß Fig. 6 wird die Herstellung der Grubenabdeckung wesentlich vereinfacht. Das ohnehin vorhandene Gelenk der Kette ist gleichzeitig auch die Achse der Rolle, wobei zwei benachbarte Rollen jeweils einen Tragbalken führen. Diese Bauweise hat weiter den Vorteil, daß für die Rollen keine U-förmige Führungen notwendig sind. Es genügt, wenn die Rollen 8 einseitig an der Schiene 11 anliegen.6, the manufacture of the pit cover is considerably simplified. The already existing joint of the chain is at the same time the axis of the roller, with two adjacent rollers each carrying a supporting beam. This design also has the advantage that no U-shaped guides are necessary for the rollers. It is sufficient if the rollers 8 bear on one side on the rail 11.

Bei dieser Ausführungsform der Erfindung liegen die Rollen von unten an der Schiene für die Halkenenden an. Dadurch wird erreicht, daß die Rollen bei einer etwaigen Belastung der Abdeckung, insbesondere beim Befahren durch ein Fahrzeug, nicht das Gewicht mittragen, und so einem Defekt ausgesetzt sind. Auch verringert sich so die Breite der Führung der Abdeckung, und es entsteht kein zusätzlicher Montageaufwand.In this embodiment of the invention, the rollers rest on the rail for the bar ends from below. It is thereby achieved that the rollers do not carry the weight in the event of a possible load on the cover, in particular when driving through a vehicle, and are thus exposed to a defect. This also reduces the width of the guide of the cover and there is no additional assembly effort.

In den Fig. 7 und 8 ist ein weiteres Ausführungsbeispiel der Erfindung beschrieben, wobei die Tragbalken 1 nicht durch Rollen geführt sind, sondern die Führungskörper von Einsatzstücken 38 gebildet sind. Diese Einsatzstücke 38 können beispielsweise aus einem gut gleitenden Kunststoff bestehen und sind in die Enden der Tragbalken 1 eingesetzt. Die Einsatzstücke 38 können beispielsweise aus einem oberen und einem unteren Teil 32 bzw. 33 bestehen, die zwischen sich einen Spalt 34 frei lassen, wobei der Spalt 34 der Führung dient. Um eine Kurvengängigkeit sicherzustellen, empfiehlt es sich, die Führungswirkung auf den mittleren Bereich 35 zu beschränken, also nur in diesem Bereich die Spaltbreite annähernd der Dicke der Führung 36 anzupassen.7 and 8, a further embodiment of the invention is described, wherein the support beams 1 are not guided by rollers, but the guide body of insert pieces 38 are formed. These inserts 38 can for example consist of a well sliding plastic and are inserted into the ends of the support beam 1. The insert pieces 38 can consist, for example, of an upper and a lower part 32 or 33, which leave a gap 34 between them, the gap 34 serving as a guide. In order to ensure smoothness in curves, it is advisable to limit the guiding action to the central region 35, that is to say only in this region to adapt the gap width approximately to the thickness of the guide 36.

Die Führung 36 ist beispielsweise flanschartig gestaltet und an die Winkelschiene 31 angeschweißt. Sie erstreckt sich sowohl im Abdeckungsbereich der Grube als auch im senkrechten Teil der Bahn der Abdeckung bzw. auch am Grubenboden.The guide 36 is, for example, flange-shaped and welded to the angle rail 31. It extends both in the cover area of the pit and in the vertical part of the path of the cover or on the pit floor.

Aus der Fig. 7 läßt sich entnehmen, daß das Kettenrad 5, das die Umlenkung aus dem senkrechten Teil der Abdeckungsbahn in den horizontalen Bereich, in dem die Abdeckung die Grube verschließt, mit einem Zahnriemen gekoppelt ist, der eine Verbindung mit dem Kettenrad senkrecht unter dem Kettenrad 5 herstellt. Dadurch werden diese beiden Kettenräder gleichförmig bewegt, was den Vorteil hat, daß die Abdeckung bei der Erfindung nur eine solche Größe haben muß, daß gerade der Abdeckungszweck erfüllbar ist. In der Abdeckungsstellung nimmt der letzte Tragbalken 37 beispielsweise die in der Fig. 7 gezeigte Stellung ein. Dies bringt eine wesentliche Verbilligung. Trotzdem ist es möglich, beim Öffnungsvorgang auch eine sehr lange Abdeckung dem unten liegenden Kettenrad zuzuführen, das die Abdeckung ohne Störung aufnimmt und in den horizontalen Abdeckungsweg am Grubenboden überführt. Es ist klar, daß der Zahnriemen 22 auch durch andere den Gleichlauf der beiden Kettenräder sichernde Getriebe ersetzbar ist.From Fig. 7 it can be seen that the sprocket 5, the deflection from the vertical part of the cover sheet in the horizontal region in which the cover closes the pit, is coupled with a toothed belt, which is connected to the sprocket vertically below the sprocket 5 manufactures. As a result, these two sprockets are moved uniformly, which has the advantage that the cover in the invention only has to be of such a size that the purpose of the cover can be achieved. In the covering position, the last supporting beam 37 assumes the position shown in FIG. 7, for example. This brings a substantial reduction in price. Nevertheless, during the opening process, it is also possible to feed a very long cover to the chain sprocket below, which picks up the cover without interference and transfers it to the horizontal cover path on the pit floor. It is clear that the toothed belt 22 can also be replaced by other gears which ensure the synchronism of the two chain wheels.

Claims (10)

1. A cover for a servicing hole in the form of a sliding shutter consisting of a plurality of parallel supporting beams (1), the ends of which provided with guide bodies (8, 38) leaning on rails (10, 11, 36) at the edge of the hole, the rails serving as guide means, whereby the supporting beams (1) are connected at their bottom side by chains (2) running parallelly with the rails (10, 11, 36) and by a drive motor (4) operating the chains (2) is movable from a covering position into a rest position in the hole and vice versa characterized in that each supporting beam (1) is a link of a link chain (2), the joints thereof corresponding to the gaps (3) between the supporting beams and in the covering position arranged at the lower gap end, that the drive motor (4) together with its chain wheel (5) provided with recesses (6) for the chain joints (7) operates the chain in pushing manner during movement into the covering position, and that the guiding surfaces of the guide means (10, 11, 36) for the guide bodies (8, 38) of the supporting beams (1) extend horizontally in the covering position.
2. A cover according to claim 1, characterized in that the driving chain wheel (5) as a deflection wheel is arranged between a horizontal and a vertical guide means of the cover (12).
3. A cover according to claim 1, characterized in that the guide means (10, 11, 36) and the guide bodies (8, 38) are arranged at such a level or distance, that they do not remarkably support the loaded supporting beams (1).
4. A cover according to one or more of the preceding claims, characterized in that each supporting beam (1) at each end has a roller (8) as a guide body.
5. A cover according to one or more of the preceding claims, characterized in that the supporting beam (1) forms a part of the chain link respectively.
6. A cover according to one or more of the preceding claims, characterized in that the bolts (25) of the chain joints (7) form the axes of the rollers (8).
7. A cover according to one or more of the preceding claims, characterized in that the rollers (8) contact the supporting rail (11) for the ends of the supporting beams (1) from below.
8. A cover according to one or more of the preceding claims, characterized in that layers (28) of plastics are provided for the ends of the supporting beams (1), and that the inner edges (29) of the layers (28) of plastics serve as guide means for the fastening elements (21) of the chain (2).
9. A cover according to one or more of the preceding claims, characterized in that the guide bodies are formed by insert pieces (38) in the ends of the supporting beams, whereby the insert pieces (38) have a guide gap (34) into which engages a flange-shaped guide (36).
10. A cover according to one or more of the preceding claims, characterized in that the guide bodies (8, 38) are arranged outside of the plane defined by the circulating chain (2).
EP83113262A 1983-01-08 1983-12-31 Cover for a servicing hole in the form of a sliding shutter Expired - Lifetime EP0115087B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83113262T ATE41198T1 (en) 1983-01-08 1983-12-31 SHUTTER-LIKE COVER FOR INSTALLATION PITS.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19833300463 DE3300463A1 (en) 1983-01-08 1983-01-08 Cover, resembling a slatted roller blind, for installation pits
DE3300463 1983-01-08
DE3345018 1983-12-13
DE19833345018 DE3345018A1 (en) 1983-12-13 1983-12-13 Roller blind-like covering for assembly pits

Publications (3)

Publication Number Publication Date
EP0115087A1 EP0115087A1 (en) 1984-08-08
EP0115087B1 true EP0115087B1 (en) 1989-03-08
EP0115087B2 EP0115087B2 (en) 1994-10-12

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EP83113262A Expired - Lifetime EP0115087B2 (en) 1983-01-08 1983-12-31 Cover for a servicing hole in the form of a sliding shutter

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EP (1) EP0115087B2 (en)
DE (1) DE3379338D1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102182330A (en) * 2011-04-22 2011-09-14 铁道第三勘察设计院集团有限公司 Movable cover plate device of checking trench
CN109571342A (en) * 2018-11-22 2019-04-05 北京无线电测量研究所 A kind of phased array antenna assembly manipulation device of flexibility

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408080A1 (en) * 1984-03-05 1985-09-05 Rhein-Bayern-Fahrzeugbau GmbH & Co KG, 8950 Kaufbeuren MOUNTING PIT COVER
DE3825718A1 (en) * 1988-07-28 1990-02-01 Hans Balzer SHUTTER-LIKE COVER FOR REPAIR AND ASSEMBLY PITS
DE4019779C2 (en) * 1990-06-21 1997-06-19 Wilfried Werner Cover for elongated assembly pits
CA2043243C (en) * 1991-05-24 1998-05-12 Roland Proulx Retractable apron for covering the pit of a variable spacing lifting jack
DE4345415C2 (en) * 1993-05-26 1998-10-22 Balzer Heide Assembly and repair kit with steel cassette
DE4324339C2 (en) * 1993-05-26 1996-03-28 Balzer Heide Assembly and repair pit and method for manufacturing the same
DE20215830U1 (en) * 2002-10-15 2002-12-05 Balzer Hans Roller shutter-like cover for repair or assembly pits
EP2628704B1 (en) 2004-05-17 2015-10-28 Stertil B.V. A system for lifting a motor vehicle
DE102004041902B4 (en) * 2004-08-30 2012-01-26 Hans Balzer Roller blind cover for installation pits
FR2965836B1 (en) * 2010-10-06 2013-08-02 Atelier Des Fermetures Sefers REMOVABLE COVERING DEVICE FOR PITCHES
DE102011050828A1 (en) * 2011-06-03 2012-12-06 Hans Balzer Cover for mounting pits

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603046A (en) 1970-05-08 1971-09-07 Stanley Humphrey Jr Automobile servicing unit
DE2646395C3 (en) 1976-10-14 1979-05-10 Rhein-Bayern J. Hermanns, Kraftfahrzeuge, 8950 Kaufbeuren Cover for assembly pits
DE2941755C2 (en) * 1979-10-16 1983-01-20 Rhein-Bayern Fahrzeugbau GmbH & Co KG, 8950 Kaufbeuren Cover for assembly pits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102182330A (en) * 2011-04-22 2011-09-14 铁道第三勘察设计院集团有限公司 Movable cover plate device of checking trench
CN109571342A (en) * 2018-11-22 2019-04-05 北京无线电测量研究所 A kind of phased array antenna assembly manipulation device of flexibility

Also Published As

Publication number Publication date
EP0115087A1 (en) 1984-08-08
DE3379338D1 (en) 1989-04-13
EP0115087B2 (en) 1994-10-12

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