DE3711338A1 - Manhole cover - Google Patents

Manhole cover

Info

Publication number
DE3711338A1
DE3711338A1 DE19873711338 DE3711338A DE3711338A1 DE 3711338 A1 DE3711338 A1 DE 3711338A1 DE 19873711338 DE19873711338 DE 19873711338 DE 3711338 A DE3711338 A DE 3711338A DE 3711338 A1 DE3711338 A1 DE 3711338A1
Authority
DE
Germany
Prior art keywords
lifting
aids
manhole cover
aid
opening angle
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.)
Ceased
Application number
DE19873711338
Other languages
German (de)
Inventor
Guenter Weber
Karl Hans Amend
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.)
Richard Weber & Co KG GmbH
Buderus Bau und Abwassertechnik GmbH
Original Assignee
Richard Weber & Co KG GmbH
Buderus Bau und Abwassertechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Richard Weber & Co KG GmbH, Buderus Bau und Abwassertechnik GmbH filed Critical Richard Weber & Co KG GmbH
Priority to DE19873711338 priority Critical patent/DE3711338A1/en
Priority to DE8717627U priority patent/DE8717627U1/de
Publication of DE3711338A1 publication Critical patent/DE3711338A1/en
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1091—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a gas spring
    • 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
    • E02D29/1463—Hinged connection of cover to frame
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
    • E05F1/105—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring
    • E05F1/1058—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring for counterbalancing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/132—Doors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/60—Application of doors, windows, wings or fittings thereof for other use
    • E05Y2900/612—Application of doors, windows, wings or fittings thereof for other use for manhole covers

Landscapes

  • 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)

Abstract

In a manhole cover (2) having a plurality of lifting aids (5) arranged next to one another, only one lifting aid (5'') takes effect over the full opening angle. The other lifting aid (5') or the remaining lifting aids take effect only up to specific opening angles. At each stage, the respective lifting forces which are actually necessary are exerted. <IMAGE>

Description

Die Erfindung betrifft eine Schachtabdeckung nach dem Oberbegriff des Patentanspruches 1.The invention relates to a manhole cover according to the Preamble of claim 1.

Schachtabdeckungen mit Hebehilfen stellen einen altbe­ kannten Stand der Technik dar. Die Hebehilfen haben dabei die Aufgabe, das sehr hohe Deckelgewicht in der Hubphase leichter überwinden zu helfen und in der Absenkphase teilweise abzufangen. Ohne solche Hebehilfen wären beim Anheben und beim Absenken sehr hohe Kräfte aufzubringen, was mit den Hebehilfen nicht erforderlich ist. Je nach Deckelgewicht werden eine oder mehrere Hebehilfen neben­ einander eingesetzt. Deren Wirksamkeit beginnt bei den bekannten Schachtabdeckungen mit dem Anheben und läuft bis zum völligen Öffnen. Der geöffnete Deckel ist noch der Wirksamkeit der Hebehilfen ausgesetzt, wodurch er in seiner Offenstellung gehalten wird.Manhole covers with lifting aids provide an old knew the state of the art the task, the very high cover weight in the lifting phase help to overcome easier and in the lowering phase partially intercept. Without such lifting aids, Lifting and applying very high forces when lowering, which is not necessary with the lifting aids. Depending on Lid weights are next to one or more lifting aids used each other. Their effectiveness starts with the known manhole covers with lifting and running until fully opened. The lid is still open exposed to the effectiveness of the lifting aids, making it in its open position is held.

Beim Anheben sind bei richtiger Zuordnung und Einstellung der Hebehilfen genau die erforderlichen Hubkräfte vor­ handen. Da die bisher üblichen Hebehilfen alle bis zur vollen Öffnung wirken, liegen bei größeren Öffnungswinkeln jedoch Kräfte vor, die wegen der anderen Stellung des Deckels zum weiteren Öffnen eigentlich gar nicht mehr er­ forderlich wären. Die erforderliche Hubkraft nimmt mit zunehmender Öffnung nämlich fortwährend ab. Beim Schließen des Deckels sind auf der Gegenseite zunächst relativ starke Kräfte der Hebehilfen zu überwinden, bis das Eigengewicht des Deckels zum Tragen kommt.When lifting are with correct assignment and setting the lifting aids precisely the required lifting forces act. Since the usual lifting aids up to full opening, are at larger opening angles however forces in front of the other position of the He actually no longer opened the lid would be required. The required lifting power takes with it namely increasing opening. While closing of the cover are initially relative on the opposite side  to overcome strong lifting aid forces until that Dead weight of the lid comes into play.

Bei einer Schachtabdeckung mit mindestens zwei neben­ einander angeordneten Hebehilfen sollen deren Hubkräfte so austariert sein, daß bei jedem Öffnungswinkel die jeweils erforderliche Hubkraft vorhanden ist.With a manhole cover with at least two next to it mutually arranged lifting aids should have their lifting forces be balanced so that at every opening angle the required lifting force is available.

Die erfindungsgemäße Schachtabdeckung ist gekennzeichnet durch die im Kennzeichen des Patentanspruchs 1 genannten Merkmale.The manhole cover according to the invention is marked by those mentioned in the characterizing part of patent claim 1 Characteristics.

Nur eine der Hebehilfen, die möglichst im mittleren Be­ reich der Abdeckung angeordnet sein sollte, ist über den vollen Öffnungswinkel wirksam. Sie dient dem Anheben und hält den Deckel auch in seiner Offenstellung. Die zweite und die evtl. weiteren Hebehilfen werden hingegen ab be­ stimmten Öffnungswinkeln unwirksam. Sie dienen nur dem Anheben. Sobald ihre Hubkräfte nicht mehr nötig sind, setzen sie aus. Bei mehreren Hebehilfen kann das bei unterschiedlichen Öffnungswinkeln der Fall sein. Auf diese Weise liegen über den gesamten Öffnungsbereich annähernd die Hubkräfte vor, die zum Anheben gerade benötigt werden.Only one of the lifting aids, if possible in the middle loading should be arranged richly over the cover full opening angle effective. It is used for lifting and keeps the lid in its open position. The second and any other lifting aids, however, are from agreed opening angles ineffective. They only serve that Lifting. As soon as their lifting forces are no longer necessary, expose them. With several lifting aids, this can be done with different opening angles. On in this way lie over the entire opening area approximates the lifting forces that are currently being used for lifting are needed.

Zum Schließen des Deckels ist zunächst nur die Kraft der einzig wirksamen Hebehilfe zu überwinden. Sobald der größer werdende Eigengewichtsanteil des Deckels abgefangen werden muß, setzen nacheinander die zusätzlichen Hebe­ hilfen ein und fangen das Eigengewicht des Deckels ab. Die gestaffelte Wirksamkeit der Hebehilfen ist somit beim Öffnen und beim Schließen vorteilhaft.To close the lid, initially only the power of only effective lifting aid to overcome. Once the intercepting larger portion of the lid's own weight must be placed in sequence, the additional lifting help and catch the weight of the lid. The staggered effectiveness of the lifting aids is thus advantageous when opening and closing.

Die Erfindung läßt sich relativ einfach verwirklichen. Die über den vollen Öffnungswinkel wirksame Hebehilfe ist ebenso aufgebaut wie die bisher üblichen Hebehilfen. Die ab bestimmten Öffnungswinkeln unwirksam werdenden Hebehilfen sind hingegen kürzer und sitzen in Rohrhülsen, die am Deckel schwenkbar befestigt sind. Sie wirken zu­ nächst gegen einen Anschlag und werden nach dem Aussetzen ihrer Wirksamkeit teleskopartig in den Rohren geführt.The invention can be implemented relatively easily. The lifting aid effective over the full opening angle is constructed in the same way as the usual lifting aids. The ones that become ineffective from certain opening angles Lifting aids, on the other hand, are shorter and sit in tube sleeves,  which are pivotally attached to the lid. They work too next against a stop and will be after suspending their effectiveness guided telescopically in the tubes.

Die Zeichnung stellt in einer einzigen Figur ein Ausführungsbeispiel der Erfindung dar.The drawing represents a single figure an embodiment of the invention.

In einem Rahmen 1 sitzt eine Abdeckung 2 die mit Schwenk­ armen 3 zu verschwenken und mit einem Knebel 4 zu arre­ tieren ist. Mehrere Hebehilfen 5, die in der Bildebene hintereinander liegen, unterstützen das Anheben der Ab­ deckung 2. Sie wirken alle mit voller Hubkraft auf die Abdeckung 2 ein. Sobald ein bestimmter Öffnungswinkel (Position a) erreicht ist, endet die Hubwirkung der einen Hebehilfe 5′. Sie wird dann in einem Rohr 6 teleskopartig geführt. Je nach Anzahl der Hebehilfen können bei anderen Öffnungswinkeln weitere Hebehilfen aussetzen. Nur eine mittlere Hebehilfe 5′′ wirkt mit voller Kraft bis zum vollen Öffnungswinkel (Position b). Beim Schließen ist zunächst nur die Kraft dieser einen Hebehilfe 5′′ zu über­ winden bis schließlich auch die andere Hebehilfe 5′ zum Eingriff kommt.In a frame 1 is seated a cover 2 which is connected to pivot arms to pivot and 3 animals with a knob 4 to arre. Several lifting aids 5 , which lie one behind the other in the image plane, support the lifting of the cover 2 . They all act on cover 2 with full lifting force. As soon as a certain opening angle (position a) is reached, the lifting effect of a lifting aid 5 ' ends. It is then guided telescopically in a tube 6 . Depending on the number of lifting aids, other lifting aids may drop out at other opening angles. Only a medium lifting aid 5 '' acts with full force up to the full opening angle (position b) . When closing, only the force of this one lifting aid 5 '' is to be overcome until finally the other lifting aid 5 ' comes into engagement.

Claims (4)

1. Schachtabdeckung mit mindestens zwei nebeneinander angeordneten Hebehilfen in Form von Gasfedern oder der­ gleichen, dadurch gekennzeichnet, daß nur eine der Hebehilfen (5′′) über den vollen Öffnungswinkel der Abdeckung (2) wirksam ist, während die übrige Hebehilfe (5′) bzw. die übrigen ab bestimmten Öffnungswinkeln unwirksam werden.1. manhole cover with at least two juxtaposed lifting aids in the form of gas springs or the like, characterized in that only one of the lifting aids ( 5 '' ) is effective over the full opening angle of the cover ( 2 ), while the rest of the lifting aid ( 5 ' ) or the others become ineffective from certain opening angles. 2. Schachtabdeckung nach Anspruch 1, dadurch gekennzeichnet, daß die über den vollen Öffnungs­ winkel der Abdeckung (2) wirksame Hebehilfe (5′′) im mittleren Bereich der Abdeckung angeordnet ist.2. Manhole cover according to claim 1, characterized in that the effective over the full opening angle of the cover ( 2 ) lifting aid ( 5 '' ) is arranged in the central region of the cover. 3. Schachtabdeckung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die ab bestimmten Öffnungs­ winkeln unwirksam werdenden Hebehilfen (5′) beiderseits der über den vollen Öffnungswinkel wirksamen Hebehilfe (5′′) angeordnet sind und bei unterschiedlichen Öffnungs­ winkeln unwirksam werden.3. Manhole cover according to claims 1 and 2, characterized in that the lifting aids which become ineffective from certain opening angles ( 5 ' ) are arranged on both sides of the lifting aid effective over the full opening angle ( 5'' ) and become ineffective at different opening angles. 4. Schachtabdeckung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die ab bestimmten Öffnungs­ winkeln unwirksam werdenden Hebehilfen (5′) bis zum vollen Öffnungwinkel teleskopartig in Rohren (6) ge­ führt sind.4. manhole cover according to claims 1 to 3, characterized in that the starting from certain opening angles ineffective lifting aids ( 5 ' ) leads to the full opening angle telescopically in pipes ( 6 ) GE.
DE19873711338 1987-04-03 1987-04-03 Manhole cover Ceased DE3711338A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19873711338 DE3711338A1 (en) 1987-04-03 1987-04-03 Manhole cover
DE8717627U DE8717627U1 (en) 1987-04-03 1987-04-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873711338 DE3711338A1 (en) 1987-04-03 1987-04-03 Manhole cover

Publications (1)

Publication Number Publication Date
DE3711338A1 true DE3711338A1 (en) 1988-10-13

Family

ID=6324841

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8717627U Expired DE8717627U1 (en) 1987-04-03 1987-04-03
DE19873711338 Ceased DE3711338A1 (en) 1987-04-03 1987-04-03 Manhole cover

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8717627U Expired DE8717627U1 (en) 1987-04-03 1987-04-03

Country Status (1)

Country Link
DE (2) DE8717627U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29506179U1 (en) * 1994-04-14 1995-06-22 Scherer Peter Device for the liquid-tight sealing of building, pool, lock openings or the like.
US5788406A (en) * 1996-04-17 1998-08-04 S. Bravo Systems, Inc. Double pivot semi-automatic manhole cover lifting device
CN102630264A (en) * 2009-09-16 2012-08-08 圣-戈班Pam集团公司 Fastener for street ironwork, assembly, street ironwork and corresponding method
WO2020021464A1 (en) * 2018-07-26 2020-01-30 Ironmade International S.R.L. Manhole cover

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4208453C2 (en) * 1992-03-17 1996-02-22 Passavant Werke Manhole cover with a circular manhole cover with a hinge

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE712766C (en) * 1937-06-16 1941-10-24 Diessel Geb Balancing of a hinged cover

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE712766C (en) * 1937-06-16 1941-10-24 Diessel Geb Balancing of a hinged cover

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29506179U1 (en) * 1994-04-14 1995-06-22 Scherer Peter Device for the liquid-tight sealing of building, pool, lock openings or the like.
US5788406A (en) * 1996-04-17 1998-08-04 S. Bravo Systems, Inc. Double pivot semi-automatic manhole cover lifting device
CN102630264A (en) * 2009-09-16 2012-08-08 圣-戈班Pam集团公司 Fastener for street ironwork, assembly, street ironwork and corresponding method
CN102630264B (en) * 2009-09-16 2014-11-12 圣-戈班Pam集团公司 Fastener for street ironwork, assembly, street ironwork and corresponding method
WO2020021464A1 (en) * 2018-07-26 2020-01-30 Ironmade International S.R.L. Manhole cover

Also Published As

Publication number Publication date
DE8717627U1 (en) 1989-08-10

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection