EP1175533B1 - Road network device - Google Patents

Description

The present invention relates to a road device.

It relates in particular to a device for closing inspection chimneys or inspection of an underground network, such as manholes or sidewalks, or on a coronation device of manholes, such as a grid of road.

Roadway devices of this type are generally provided with a frame and a frame cover.

The invention relates in particular to a device of this type, in which the frame has a raised peripheral edge with a double wall delimiting a groove and in which the covering element, for its part, is provided with a protruding peripheral lip .

In the closed position, the cover member caps the frame so that the lip engages in the groove.

In general, to remove the cover element, often made of cast iron, it is necessary to raise it vertically so as to clear the lip of the groove, which has a major disadvantage, given its mass.

Document FR-A-2 531 152 proposes to solve this problem by providing the bottom of the groove with an inclined ramp for translating the covering element when it is removed or mounted on the frame. Such a solution, however, does not allow, with least effort, to open and / or close the covering element by rotation around the frame.

Another solution is to provide the bottom of the groove with a guide for guiding the rotation of the covering element about a horizontal axis, but this solution does not then allow to translate the covering element during its deposit.

These technical solutions thus make it possible to move the covering element either in rotation or in translation.

US 5362174 discloses a device according to the preamble of claim 1.

In view of the foregoing, the object of the invention is to provide a road device whose covering element can be operated either in translation or in rotation in an easy manner.

It therefore relates to a road device, according to claim 1.

• la ou les rampes ont une section en coupe sagittale en forme de secteur de disque ;
• la tranche d'extrémité libre de la lèvre comporte un chanfrein constituant une butée de limitation dé la rotation de l'élément de recouvrement dans le sens de l'ouverture, conjointement avec la zone d'extrémité libre de la paroi externe du cadre sur laquelle vient buter la surface externe de l'élément de recouvrement ;
• l'élément de recouvrement est doté de moyens de préhension situés à l'opposé de la ou des rampes ;
• les moyens de préhension sont constitués par un évidement formé dans la surface externe de l'élément de recouvrement ;
• les moyens de préhension sont constitués par un orifice traversant formé dans la paroi de l'élément de recouvrement dans une zone située entre le bord de ce dernier et la lèvre ;
• la lèvre forme, dans ladite zone, une chicane ;
• il comporte un verrou de blocage de l'élément de recouvrement en position fermée, sur le cadre ;
• le verrou comporte une tige pivotante rendue solidaire d'une barrette de verrouillage au moyen de deux branches d'extrémité rabattables, ladite barrette étant destinée à s'insérer sous une butée du cadre ;
• il comporte un joint d'étanchéité interposé entre le verrou et l'élément de recouvrement ;
• la gorge est emplie d'eau et forme, conjointement avec la lèvre de l'élément de recouvrement, un siphon anti-odeurs ;
• le cadre comporte, à sa base, au moins un relief en saillie latérale dont la face inférieure est munie d'une série de nervures d'ancrage du dispositif dans un matériau de scellement ; et
• le cadre comporte des nervures d'ancrage ménagées dans la partie médiane de chacun de ses côtés, lesdites nervures étant adaptées pour s'opposer à la flexion du cadre.

In various embodiments, the road device according to the invention comprises one or more of the following characteristics, taken separately or in any technically possible combination.

• the ramp (s) have a sagittal cross-section in the form of a disk sector;
• the free end edge of the lip comprises a chamfer constituting an abutment for limiting the rotation of the cover element in the direction of opening, together with the free end zone of the outer wall of the frame on which abuts the outer surface of the covering element;
• the covering element is provided with gripping means located opposite the ramp or ramps;
• the gripping means are constituted by a recess formed in the outer surface of the covering element;
• the gripping means are constituted by a through hole formed in the wall of the covering element in an area between the edge of the latter and the lip;
• the lip forms, in said zone, a baffle;
• it comprises a locking latch of the covering element in the closed position, on the frame;
• the lock comprises a pivoting rod secured to a locking bar by means of two foldable end branches, said bar being intended to be inserted under a stop of the frame;
• it comprises a seal interposed between the latch and the covering element;
• the groove is filled with water and forms, together with the lip of the cover member, an odor trap;
• the frame comprises, at its base, at least one lateral projecting projection whose lower face is provided with a series of anchoring ribs of the device in a sealing material; and
• the frame comprises anchoring ribs formed in the median part of each of its sides, said ribs being adapted to oppose bending of the frame.

• la figure 1 est une vue de dessus de l'élément de recouvrement d'un dispositif de voirie conforme à l'invention ;
• la figure 2 est une vue de dessus du cadre du dispositif selon l'invention ;
• la figure 3 est une vue en coupe selon la ligne III-III de l'élément de recouvrement du dispositif de la figure 1 ;
• la figure 4 est une vue en coupe selon la ligne IV-IV du cadre de la figure 2 ;
• la figure 5 est une vue agrandie d'un détail de l'élément de recouvrement du dispositif illustré sur la figure 1 ;
• les figures 6 à 10 montrent de façon schématique l'opération de montage de l'élément de recouvrement sur le cadre ; et
• la figure 11 est une vue illustrant le déplacement en rotation de l'élément de recouvrement par rapport au cadre de la position de fermeture vers la position d'ouverture du dispositif.

Other features and advantages will become apparent from the following description, given purely by way of example, and with reference to the appended drawings, in which:

• Figure 1 is a top view of the covering element of a road device according to the invention;
• Figure 2 is a top view of the frame of the device according to the invention;
• Figure 3 is a sectional view along the line III-III of the covering element of the device of Figure 1;
• Figure 4 is a sectional view along the line IV-IV of the frame of Figure 2;
• Fig. 5 is an enlarged view of a detail of the cover member of the device shown in Fig. 1;
• Figures 6 to 10 show schematically the assembly operation of the cover element on the frame; and
• Figure 11 is a view illustrating the rotational displacement of the cover member relative to the frame from the closed position to the open position of the device.

In Figures 1 and 2, there is shown a top view of the constituent elements of a road device, designated by the general reference numeral 10.

It is in particular made of cast iron and has a section in rectangular or square cross section.

In the exemplary embodiment shown, it is intended for the closure of a chimney inspection or inspection of an underground network.

The device 10 comprises a frame 12 forming a base intended to be mounted on the access chimney to the underground network and a covering element 14 constituted by a buffer to cap the frame.

The frame 12 comprises, in each corner, a relief 16, 18, 20 and 22 projecting laterally from the wall constituting the frame 12 to improve the vertical anchoring of the frame in a sealing material, in this case mortar and to avoid rotation of the frame about a vertical axis when subjected to a rotational force. A series of ribs, such as 23, extend diagonally across the underside of each relief to enhance the horizontal anchoring of the device in the seal material.

Additional anchoring ribs such as are provided under the frame in the mid-zones to prevent bending of the frame 12 in case of deficient sealing.

The frame 12 has a substantially vertical vertical raised peripheral edge 24, 26 delimiting between them a groove 28, generally U-shaped. The height of the inner wall 24 is smaller than that of the outer wall 26.

The pad 14, meanwhile, consists mainly of a flat plate, solid or perforated, provided with a peripheral lip 32 projecting from the inner or lower surface of the plate 30. The buffer comprises a first set of support pads 34, 36 configured in the form a planar bearing surface coplanar with the plate 30, and a second set of support pads 38, 40 located opposite the first set and configured as a bearing surface s' extending inclined relative to the plane of the plate 30 downwards and towards the bearing surfaces 34 and 36 planes vis-à-vis.

In the assembled state, that is to say when the buffer 14 rests on the frame 12, the peripheral lip 32 engages in the groove 28 and rests by the support pads 34, 36 on the bottom of the groove, while the support pads 38 and 40 of the second set rest on support pads 41 and 41 has complementary shape formed in the bottom of the groove.

The frame 12 is further provided with a stop 42 carried by the inner surface of the inner wall 24 of the peripheral edge. This abutment preferably has a cross-section V-shaped open towards the inside of the frame and receives a projection 43 of complementary shape carried by the inner surface of the buffer 14. The cooperation of this projection 43 and the abutment 42, associated with the support feature of the buffer on the frame 12, ensures the pad 14 a support stability at four points when subjected to the action of a vertical load, and whatever the point of application load on the buffer. This prevents any phenomenon of hugging of the buffer, which has the effect of avoiding beat noises.

The bottom of the groove 28 is filled with water so as to constitute an anti-odor siphon, together with the lip engaged in the groove, as shown in FIG.

Referring particularly to FIG. 3, it can be seen that, according to the invention, the pad 14 is provided with ramps, such as 44, having a sagittal cross-section in the form of a disk sector and extending between the inner surface lip 32 and the peripheral area of the inner surface 30 of the pad.

These ramps are positioned on one side of the buffer 14 and constitute a means for guiding the buffer 14, in translation and in rotation, during the displacement thereof relative to the frame under the action of a force exerted in a zone opposed to the ramps 44. They are provided in a sufficient number to allow effective guidance of the buffer, while limiting friction. For example, the pad 14 is provided with two ramps 44. The ramps-44 are arranged on the side of the pad where the flat support pads 34 and 36 are located.

During mounting of the buffer or disassembly thereof, the ramps 44 bear on the end edge of the inner wall 24 of the peripheral edge of the frame, which allows the buffer is to slide on the frame, when a translational movement, or to pivot about an axis of rotation coplanar to the frame during a rotational movement.

Furthermore, the lower end of the lip 32 of the buffer 14 is provided with a chamfer 45 extending along the side of the lip carrying the ramps 44. This chamfer is intended to prevent the total swing of the buffer in the direction the opening by ensuring a stabilization of the latter in the open position in which it forms an opening angle greater than about 100 ° relative to the general plane of the frame.

In order to facilitate the gripping of the buffer 14, it is provided with a gripping means 48 provided in the vicinity of the buffer side situated opposite the ramps 44.

For example, it is realized during the molding of the stamp 14 in the form of a through hole 48 which can be obtained by direct demolding. This eliminates the costly use of a kernel. In this case, as shown in FIG. 1, the peripheral lip 32 and the groove 28 advantageously have, in this zone, a baffle so that the orifice is placed outside the lip, so as to ensure the tightness odors, in the case of application to a sidewalk.

The gripping means 48 may also be in the form of a blind hole, for example by coring, formed in the outer surface of the pad.

Finally, the buffer is completed by a locking member 50, seen in detail in FIG. 5, situated opposite the ramps 44, making it possible to block the buffer 14 on the frame 12.

It can be seen in this figure that, for example, the latch 50 comprises a locking bar 52 made integral with a pivot rod 54 passing through. the buffer 14 by folding two end branches 55 and 55a of this rod against the underside of the bar

The pivoting rod 54 is provided with a head 56 shaped so as to be angularly displaceable by means of a tool.

Preferably, the head 56 is capped by a protective cap 58.

An O-ring seal 60 may be interposed between the head 56 and the pad 14 so as to ensure odor-tightness and to constitute a brake avoiding the accidental unlocking of the lock.

In the locked position, the bar 52 engages under a stop 59 of the frame secured to the inner wall 24 of the latter.

With reference to FIGS. 6 to 10, the mounting operation of the stamp 14 on the frame 12 will be described.

This operation is carried out, starting from the position shown in FIG. 6, in which the buffer rests on the side comprising the ramps 44 on the frame 12, exerting a thrust on the buffer tending to cause a translation of the latter by to the frame until the lip reaches the groove (Figure 7).

A subsequent thrust causes the peripheral lip to engage in the groove (Figures 8 and 9).

In this position, the projection 43 carried by the buffer bears against the abutment 42.

It can be seen in these figures 8 and 9 that during the engagement of the lip in the groove, the ramps 44 provide support and sliding of the buffer on the free end portion of the inner wall 24 of the throat , thus making it possible to translate the buffer with less effort.

At the end of this movement, the peripheral lip is completely engaged in the throat.

To drop the buffer, reverse operations must be performed.

Thus, it is appropriate to exert a traction on the gripping means 48, that is to say a force exerted upward, so as to clear the lip of the groove in the area opposite the ramps 44, then using Again the support of the ramps 44 on the free end portion of the inner wall of the groove to translate the buffer.

To open the tampon, as shown in FIG. 11, it is necessary to exert a pull on the pad 14 so as to cause a rotational movement of the pad along arrow F about a horizontal axis of rotation extending in the direction of rotation. throat.

Note that during this movement, the ramps also bear against the end edge of the inner wall 24 of the groove, which allows a guide of the rotating buffer.

Note also that the ramps 44 also provide a guide of the buffer during its rotation in the direction of closure, and again taking support against the end edge of the inner wall of the groove also allowing relieve the operator who operates the buffer.

Moreover, as can be seen in FIG. 11, the buffer 14 is stabilized in the open position, in which it forms an opening angle greater than approximately 100 ° with respect to the general plane of the frame 12, on the one hand, by its outer surface which abuts against the outer wall 26 of the frame and, on the other hand, by the chamfer 45 which abuts against the outer surface of the inner wall 24 of the peripheral edge of the frame.

This avoids the complete tilting of the buffer in the direction of the opening.

It is therefore conceivable that the invention which has just been described, which uses ramps in the form of a disk sector to guide the covering element during its displacement, makes it possible to maneuver the latter in translation, for its implementation. place and its removal, being in rotation in the direction of opening and closing. These operations are carried out easily, insofar as it is not necessary to lift the entire covering element.

Claims (12)

1. Highway device, of the type comprising a frame (12) and an element (14) for covering the frame, the frame comprising an upstanding peripheral border with two walls (24, 26) delimiting a groove (28) and the covering element (14) being equipped with a projecting peripheral lip (32) engaging in the groove (28) in the frame-covering position, characterized in that the covering element (14) comprises at least one ramp (44) extending between the lip and the internal surface of the said element, the ramp or ramps being positioned on a single side of the covering element (14) and intended to bear on the end edge of the peripheral border of the frame, thus constituting a means for guiding the covering element, translationally and rotationally, during the displacement of the latter with respect to the frame under the action of a force exerted on the said element in a zone opposite the ramp or ramps (44).
2. Device according to Claim 1, characterized in that the ramp or ramps (44) have a sagittal section in the shape of a sector of a disc.
3. Device according to either of Claims 1 and 2, characterized in that the free end edge of the lip (32) comprises a chamfer (45) constituting a stop for limiting the rotation of the covering element in the direction of opening, in conjunction with the free end zone of the external wall (26) of the frame, on which the external surface of the covering element butts.
4. Device according to any one of Claims 1 to 3, characterized in that the covering element (14) is equipped with grasping means (48) situated opposite the ramp or ramps.
5. Device according to Claim 4, characterized in that the grasping means (48) consist of a cutout formed in the external surface of the covering element (14).
6. Device according to Claim 4, characterized in that the grasping means (48) consist of a through-orifice formed in the wall of the covering element in a zone situated between the border of the latter and the lip (32).
7. Device according to Claim 6, characterized in that the lip (32) forms, in the said zone, an offset.
8. Device according to any one of Claims 1 to 7, characterized in that it comprises a lock (50) for locking the covering element (14) in the closed position, on the frame.
9. Device according to Claim 8, characterized in that the lock (50) comprises a pivoting rod (54) secured to a locking bar (52) by means of two end limbs capable of being folded back, the said bar being intended to be inserted beneath a stop (59) of the frame (12) .
10. Device according to Claim 9, characterized in that it comprises a seal (60) interposed between the lock and the covering element (14).
11. Device according to any one of Claims 1 to 10, characterized in that the frame (12) comprises, at its base, at least one laterally projecting relief (16, 18, 20, 22), the lower face of which is provided with a series of ribs (23) for anchoring the device in an embedding material.
12. Device according to any one of Claims 1 to 11, characterized in that the frame (12) comprises anchoring ribs (25) made in the median part of each of its sides, the said ribs being adapted to oppose the bending of the frame (12).

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