EP2957678B1 - Pivoting cover for a shaft - Google Patents

Description

The invention relates to a pivot cover for a sunken into a roadway shaft. The pivot cover includes a peripheral frame and at least one, preferably two or more pivotable lids. The lids may each have a substantially triangular shape in which the "apex" of the triangle is widened to form a short marginal edge, two lids each forming a pair of lids in the form of a rectangle and the lids on opposite sides of the frame Hinges are hinged so that they can be folded up into a stable overhead position. The shaft and the lid are preferably made of cast iron.

When the traffic rolls over such a pivot cover, usually occur rattling noises, which are perceived in the vicinity of the pivot cover as very annoying.

The DE 10 2007 020 865 A1 discloses a manhole cover with damping elements which are inserted in a circumferential groove of the manhole frame, wherein the manhole cover rests on these damping elements. The DE 198 42 348 A1 also discloses a manhole cover in which the lid is disposed on damping strip segments. These two manhole covers dampen vertical forces acting on the blanket but not lateral impact of the covers on the frame due to horizontal forces.

The present invention has for its object to provide a pivoting cover of the type considered so on that such rattling noises are largely avoided.

This object is achieved by the features of claim 1.

Advantageous embodiments of the invention are characterized in the subclaims.

The invention provides that bags are provided with laterally projecting, rubber-like blocks between the frame and the adjacent lids and between the adjacent lids. The pockets are preferably integrally formed in each case on the respective components. The rubber-like blocks are held securely in the pockets, so that they are securely held in their positions even when opening and closing the individual lids. By the rubber-like blocks is reliably avoided that the lids are moved by the rolling traffic to the frame or against each other and that a rattling noise is produced by the impact, since the rubber-like blocks maintain a small distance of the parts of the pivot cover from each other and also occurring vibrations immediately dampen. When swivel cover according to the invention therefore no rattling noises occur when driving through heavy vehicles.

In further details, it is provided that the lids overlap at their edges, in each case a downwardly offset edge web is formed on one of the lids, on which rests an upper edge web of the adjacent lid. Of course, the tops of the covers are flush with each other.

Characterized in that the lid each have a downwardly offset edge web on one side and an upper edge web on the opposite side, overlap and under cover all the covers alternately, whereby the lid mutually block so that they opened only starting from one of the edge cover can be. If this edge cover can be locked, all lids can be locked with it.

It is further proposed that at least one, preferably two spaced-apart pockets are each formed on the side of each lid, on which the downwardly offset edge web is formed. These bags can be in advantageous embodiment of the invention extend from the web down, wherein from the web an inlet opening for a rubber-like block is recessed and the bag has a closed bottom. In horizontal section, the bag according to the invention has a T-shaped recess, the central web is open to the side. The rubber-like blocks have in horizontal section a corresponding T-shape, the laterally projecting portions are held in the pockets and their laterally projecting portions are held in the pockets and the central web projects laterally out of the associated pocket. The slightly protruding beyond the outer surface of the bag out web of the rubber-like pad is opposite to a peripheral edge of the adjacent lid, with a minimum distance between these parts may exist. The adjacent lid can also rest against the two rubber-like blocks.

The pockets are designed so that the rubber-like blocks can be easily inserted from above. They may be held in the pocket in a press fit so that they can not be pulled out of the pocket by frictional forces or the like when opening the adjacent lid.

As already mentioned above, the blocks are securely held in the pockets and are subjected to large pressure only on the over the associated bag projecting central web when the adjacent lid impinges on the blocks. Due to their shape and arrangement, the rubber-like blocks can be used over a long period of time. Once worn, they are easily replaceable in the pockets.

In this context, it should be mentioned that the blocks can also be glued in the pockets, which makes their interchangeability a little more difficult.

Figur 1

eine Aufsicht auf eine im wesentlich rechteckige Schwenkabdeckung mit vier im wesentlichen dreieckigen Deckeln;

Figur 2

einen Vertikalschnitt entlang der Linie A-A in Figur 1;

Figur 3

eine Oberansicht der Schwenkabdeckung gemäß Figur 1 in vergrößerter Darstellung im Horizontalschnitt;

Figur 4

eine Aufsicht auf den Rahmen der Schwenkabdeckung;

Figur 5

einen Teil des Rahmens der Figur 4 mit zwei Taschen;

Figur 6

eine teilweise Darstellung der Figur 5 mit eingesetztem gummiartigen Klotz;

Figur 7

eine Darstellung einer Hälfte der Schwenkabdeckung mit zwei Deckeln;

Figur 8

eine vergrößerte Darstellung des Bereichs A in Figur 7 im Maßstab 1:1;

Figur 9

eine perspektivische Ansicht des in Figur 7 oberen Deckels mit einer Aufsicht und einer Seitenansicht in verkleinerten Maßstäben;

Figur 10

eine perspektivische Darstellung eines gummiartigen Klotzes.

Further details of the invention will become apparent from the following description. Showing:

FIG. 1

a plan view of a substantially rectangular pivot cover with four substantially triangular lids;

FIG. 2

a vertical section along the line AA in FIG. 1 ;

FIG. 3

a top view of the pivot cover according to FIG. 1 in an enlarged view in horizontal section;

FIG. 4

a plan view of the frame of the pivot cover;

FIG. 5

a part of the framework of FIG. 4 with two pockets;

FIG. 6

a partial representation of the FIG. 5 with inserted rubber-like block;

FIG. 7

a representation of one half of the pivot cover with two lids;

FIG. 8

an enlarged view of the area A in FIG. 7 in the scale 1: 1;

FIG. 9

a perspective view of the in FIG. 7 upper lid with a top view and a side view on smaller scales;

FIG. 10

a perspective view of a rubber-like pad.

FIG. 1 shows a pivot cover with a frame 1 and four substantially triangular lids 2, which are hinged to the frame 1 with hinges 3. The lid 2 complement each other in pairs to form a rectangle and are hingedly connected to the frame 1 at their opposite longitudinal sides 4.

As the Figures 2 and 7 to 9 show, each lid contains its in FIG. 1 right peripheral edge opposite its top down offset edge web 5, which is also referred to as Untertritt. The adjacent lid has an upper edge web 6 (or crossing), which rests on the lower edge web 5. This overlaps and under the adjacent lid 2, which in the representation of the FIG. 1 only step by step from right to left can be opened. When the right lid in FIG. 1 is blocked by a locking device 7, all lids are securely closed.

The lids have at the lateral edges with the downwardly offset edge web 5 two molded pockets 8, which extend from the edge web 5 vertically downwards. The pockets 8 have a bottom 9 and are open towards the top of the edge web 5 so that a block 10 made of a rubber-like material (see FIG FIG. 10 ) is inserted from above into the pocket 8. The pocket 8 has a horizontal section a cavity with a T-shape with a frontally open slot 11, from which the central web 12 of the pad 10 protrudes by a few millimeters. The two transverse webs 13 are securely held in the corresponding recesses of the pocket 8.

In FIG. 9 you can see that in FIG. 7 upper cover 2 in turn on the right edge (the representation of FIG. 1 ) has the molded pockets 8. On the frame 1, two spaced apart pockets 8 are integrally formed on the opposite narrow sides 13a. These extend from one short downwardly offset edge web 14 upwards. At the out of the pockets projecting central webs 12 of the blocks 10 (see FIG. 6 ) are lower ribs 15 of the edge cover on (or are slightly spaced therefrom). Also at the pockets 8 and projecting webs 12 of the blocks 10 of the lid 2 are lower webs 16 and 17, when the lid are moved by the rolling traffic accordingly.

Claims (7)

1. A pivoting cover for a shaft set into a roadway with a frame (1) and at least one, preferably two or four, pivotal cover plates (2) and with damping elements, characterised in that positioned between the frame (1) and the adjacent cover plate (2) or the adjacent cover plates (2) and, in the case of a plurality of cover plates (2), between the individual cover plates (2) there are pockets (8) with rubbery pads (10) which project laterally in the installed position, that the pockets (8) extend downwardly to a closed base and have an upwardly open cavity, which is T-shaped in horizontal section, the central web of which is open laterally and that the rubbery pads (10) have a corresponding T shape in horizontal section, the laterally projecting sections (13) of which are held in the pockets (8) and the central web (12) of which projects laterally out of the pockets (8).
2. A pivoting cover as claimed in Claim 1, characterised in that the pads (8) are held by a force fit.
3. A pivoting cover as claimed in Claim 1, characterised in that the pads (8) are secured in the pockets by adhesive.
4. A pivoting cover as claimed in Claim 1, wherein two or four cover plates are provided, characterised in that the cover plates (2) overlap at their edges, a downwardly offset edge web (5) being formed in each case on one of the cover plates, on which an upper edge web (6) of the adjoining cover plate (2) rests.
5. A pivoting cover as claimed in Claim 4, characterised in that at least one, preferably two, pockets (8) are formed in each case on the side of a cover plate (2) including the downwardly offset edge web (5).
6. A pivoting cover as claimed in Claims 1 to 5, characterised in that the cover plate or cover plates (2) and the frame (1) consist of cast iron and that the pockets (8) are integrally moulded on.
7. A pivoting cover as claimed in Claims 1 to 6, characterised in that the cover plates (2) have a substantially triangular shape such that each pair of cover plates has the shape of a rectangle and that the cover plates (2) of each pair of cover plates are pivotally connected to opposing edges of the frame (1).

Images