WO2008046668A1 - Kit de réglage de trous d'homme pour puits - Google Patents

Kit de réglage de trous d'homme pour puits Download PDF

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Publication number
WO2008046668A1
WO2008046668A1 PCT/EP2007/056036 EP2007056036W WO2008046668A1 WO 2008046668 A1 WO2008046668 A1 WO 2008046668A1 EP 2007056036 W EP2007056036 W EP 2007056036W WO 2008046668 A1 WO2008046668 A1 WO 2008046668A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
lifting
pit
apt
kit according
Prior art date
Application number
PCT/EP2007/056036
Other languages
English (en)
Inventor
Bruno Zanatta
Original Assignee
Bruno Zanatta
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 Bruno Zanatta filed Critical Bruno Zanatta
Priority to PL07765473T priority Critical patent/PL2084333T3/pl
Priority to EP07765473A priority patent/EP2084333B1/fr
Publication of WO2008046668A1 publication Critical patent/WO2008046668A1/fr

Links

Classifications

    • 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
    • E02D29/1409—Covers for manholes or the like; Frames for covers adjustable in height or inclination

Definitions

  • the present invention relates to a kit for the adjustment of manholes for road pits, such as sewage pits and the like, and to a respective method for the adjustment of manholes.
  • manholes are formed by a frame, generally made of cast iron, disposed resting on the mouth of the pit, onto which a cover is laid so as to deny the access to the sewage system and allow the passage of vehicles onto the manhole itself.
  • a very important feature during the setting of manholes consists in the laying of the cover at the same level of the road surface. Such operation is in fact necessary in order to avoid noticing the presence of the manhole as the vehicle passes over it, with a bothersome sensation for the passengers, possibly provoking damages to the vehicle, if the difference in the level is excessive. Moreover, a difference of level between the manhole and the road surface can be particularly dangerous for bicycles and motorbikes, as it can easily cause the falling of the driver.
  • the European patent application EP 317 189 discloses a manhole comprising a base to be mounted at the mouth of the sewage pit on which a recess is made.
  • the cover of the manhole rests on a frame slidable inside said recess.
  • One or more shims can be interposed between the base and the frame, allowing to adjust the height of the frame and, consequently, the position of the cover with respect to the height of the road surface.
  • the manufacturing of this device is complicated and expensive, particularly in the manufacturing of the base on which the frame slides. Moreover, it does not provide any system for the lifting of the frame that, therefore, should be manually lifted by levers or cranes.
  • Japanese patent application n Japanese patent application n.
  • JP-A-H 10- 18328 offers a solution to such problem and discloses a manhole formed by two sliding concentric portions adjustable by means of screws.
  • the manhole is barely practical in its use since the screws are definitely exposed to the action of the gases coming from the pit and to the draining rain water, that can contain a relevant amount of corrosive agents, mainly salt used in streets during the winter and in marine zones.
  • US patent 4,337,005 proposes another solution, disclosing a cylindrical pit composed of a resting base and a frame externally concentric thereto. The frame can therefore slide axially with respect to the base, so as to adjust the distance between the two elements.
  • the pit further comprises a set of elastic rings placed externally to the frame.
  • the rings can interpose between the base and the frame by raising the latter, so as to act as shims.
  • the use of complex elements, such as the base and the elastic rings remarkably affects the costs of the manhole and, consequently, the device is barely advantageous.
  • the system for the lifting of the manhole is barely practical and the adjustments thereof become thus long and complex, as the manhole is lifted by a bar extending diametrically at the mouth thereof, the bar being connected to a crane.
  • the manhole cannot be use in squared manholes, since it requires elastic rings that enlarges for behaving as shims as the frame is lifted. Consequently, such feature cannot be performed in squared manholes.
  • the technical problem underlying the present invention is to provide a device allowing the adjustment of manholes allowing to overcome the drawbacks mentioned above with reference to the known art.
  • the present invention provides several relevant advantages.
  • the main advantage lies in that it allows practical and easy adjustment of the cover with respect to the level of the road surface, wherein the maintenance costs are remarkably lower than the present ones, although maintaining laying and purchasing costs comparable to the one for traditional manholes.
  • it does not require the setting-up of any element that is easily wearable if placed inside the manhole.
  • figure 1 is an exploded perspective view of a kit for the adjustment of manholes according to the present invention
  • figure 2 is a rear plan view of a frame of manhole, detail of figure 1
  • figure 3A-3C are sectional views along line A-A of the frame of figure 2, according to different perspectives
  • figures 4 and 4A are a lateral section along the line B-B of the kit of figure 1 and a respective detail
  • figure 5 is a detail according to a perspective view of the kit according the present invention, shown in a section along the line A-A
  • figures 6A-6C are sectional views showing the operation of a lifting means of the kit according to the present invention
  • figure 7 is an exploded perspective view of a second embodiment of the kit according to the present invention, wherein the lifting means has been removed
  • figure 8 is a plan view of the
  • a pit 100 is shown according to an exploded perspective view, on which a manhole frame 4 is laid, analogously to the traditional systems.
  • a cover not shown in the present figure, is then laid thereon.
  • one advantage of the present invention consists in that it allows the adjustment of manholes without requiring relevant modifications compared to traditional manholes and anyhow allowing the use of conventional covers. This is remarkably important in order to maintain limited manufacturing costs and anyhow comparable to traditional frames.
  • the frame 4 is arranged resting on an border 101 of the mouth of the pit, interposing one or more shims 3.
  • the shims 3 allow the adjustment of the manhole or, more precisely, to adjust the height thereof with reference to the road surface 6 or to any other analogous reference.
  • the shims 3 are plate-shaped and have such dimensions that openings 46 are defined at the frame corners, when a shim is placed at the a respective frame side, as shown in figure 5.
  • the kit according to the present invention allows to lift the frame 4, according to the method described in the following, and to place further shims 3, until the frame is located at the same level of the road surface 6 or, anyhow, at the desired height.
  • suitable spacing means which, in the present embodiment, comprises lifting plates 71, in particular in a number equal to four, said plates having threaded seats 73, wherein a screw 8 can engage, and respective resting plates 72.
  • the frame 4 comprises a rim 42 having holes 44 so as to allow the engagement with play of the screws 8.
  • the lifting plate 71 and the resting plate 72 are initially located inside the openings 46, in an intermediate position between the manhole and the pit 100, more precisely below the rim 42.
  • This arrangement is such that a resting surface 720 of the plate 72 is arranged resting on the border 101 of the pit, whilst a lifting surface 710 is below the rim 42, facing thereto.
  • the plate 71 is located so that the threaded seat 73 is substantially concentric to the hole 44 realized on the rim.
  • the screw 8 is engaged in the hole 44 and screwed in the respective threaded seat 73.
  • the plate 71 is vertically lifted by keeping the lifting plate 71 steady and screwing the screw 8 on the seat 44, as the bottom of the screw remain resting on the resting plate 72.
  • the plate 71 comes into contact with the rim 42 by the lifting surface 710 and thus driving high in vertically direction also the rim 42.
  • This process i.e., allows to vary the space between the surface 710 and 720, thus achieving the lifting of the frame 4 with respect to the pit 100, onto which said surfaces are respectively resting.
  • the lifting means also allows to easily remove the frame 4 for maintenance.
  • the lifting means could be easily removed, by taking out the screw 8 and removing the plates 71 and 72 from the opening 46.
  • Such system advantageously allows to use said lifting means as the only equipment for the lifting of several manhole, thus obtaining a remarkable saving on the costs than the known manholes provided with adjusting means.
  • the only component having threaded parts of the kit according the present invention is the lifting means and their capability of being removed allows to avoid that any threaded part comes into contact with liquids or vapours flowing in the manhole, in such case said part will surely be remarkably subject to wear.
  • the lifting means can be easily operated by a single worker, without the aid of any particular external equipment rather than a key for rotating the screw 8. - o -
  • the plates can be also spaced with different methods, e.g. by a jack-based system or the like.
  • the resting plate 72 could also not be present and, in such case, the resting surface 720 would be defined by the bottom of the screw 8, as, e.g., it happens in the next embodiment.
  • the frame and the other components in general of the kit according to the present invention also have some particular arrangements allowing to perform more effectively the lifting action and, in general, they offer several advantages during the installation and the maintenance.
  • the frame 4 has engaging means 47 and 48 for the purpose of making easier the lifting of the resting plate and the lifting plate respectively.
  • Such engaging means 47 and 48 are made by guides wherein the plates can slide, so as to be easily engaged in a suitable position for achieving the lifting.
  • the engaging means allows to keep the plates still during the lifting of the frame, which requires the screwing of the screw in the threaded seat 73, thus making the operation even easier.
  • the plates 71 and 72 have different dimensions, so that it possible to insert by the respective guide 47 the resting plate first, which is wider, and then the lifting plate over the former.
  • the plates 71 and 72 has wedge shaped ends so that they can completely engage at the corners of the frame 4.
  • the frame furthermore has a sloping edge 49 allowing an improved stability to the manhole, without compromising the lifting operations.
  • the edge 49 will be covered with asphalt, or with any other material used in the ground wherein the manhole is placed, so as to allow enough stability to the frame. Nevertheless, since such edge is sloped, it will be possible to lift the frame without necessarily removing completely the asphalt covering the edge, since it will be broken by the lifting itself.
  • the manhole can be laid in a single layer of asphalt, whilst being laid below in a second stronger material 60, as shown in figure 4A.
  • the spacing means 3 has coupling means and, in the present embodiment, it is realized by a projection 31 and a respective coupling seat 35. Accordingly, it will be possible to stack the shims one above the other in a stable arrangement.
  • the frame 4 also has an analogous coupling seat 45, wherein a projection 31 can engage.
  • damping elements 40 whereon the cover is posed, at the sides of the frame 42 is particularly advantageous, as again shown in figure 4A. These damping elements allow to avoid, or at least reduce, the noise during the passing of vehicles over the manhole, a remarkably desired feature in urban centers.
  • a kit for the adjustment of manhole for pits 100 comprises a substantially flat secondary frame 1, apt to be placed resting at the border of the mouth of the pit 100.
  • the frame 4 has a substantially squared section and it is formed by four side walls 41, developing substantially parallel to an end portion 102 of the frame 100.
  • the side walls 41 can define a space apt, in use, to receive at his end portion both the secondary resting frame 1 and the pit 100. Accordingly, the frame 4 can slide with respect to the end portion 102 of the pit and to the secondary frame resting on border 101 thereof.
  • the frame 4 comprises the inside rim 42, developing substantially perpendicular to the above mentioned side walls 41 and, moreover, substantially parallel to the secondary resting frame 1.
  • the developed surface of the rim 42 is substantially facing to a first side of the latter.
  • the cover 5 is then placed on the on a second side of the rim 42 so as to achieve the blinding of the pit. It should be also noted that the position of the rim from the upper end of the frame is so that the cover 5, when posed, is substantially at level with the latter, wherein upper end should be intended as the one facing the road surface 6.
  • the rim 42 faces the secondary frame 1 and thus it is possible to interpose at least an angle shim 3 therebetween, allowing to vary the vertical position of the frame 4 with the cover 5, respecting to the pit 100.
  • the shims 3 are some millimeters thick and made of plastic or metallic materials, with enough mechanical strength to be able to bear the stress due to the passage of vehicles over the cover 5.
  • the use of angle-shaped shims not only allows to vertically adjust the position of the cover, but also to tilt the surface thereof, by using angle shims only at single corner of the secondary frame 1.
  • shims with different thickness can be provided, so that it is possible to easily adjust the vertical position of the frame with the cover, by using combination of different thickness.
  • a first shim is posed at the corner of the secondary frame, thus defining, in use, a spacing between rim 42 and secondary frame 1.
  • the shims 3 have a hole 32 which, in use, is aligned to the holes 13 and
  • such means is achieved by a pin 9 to be plugged in the three holes 13, 32 and 43.
  • the coupling between pin and hole is with play, thus allowing an easy removal thereof.
  • the pin 9, or any other equal means will be removed in order to add additional angle shims, thus allowing to place them as previously described.
  • At least an angle shim 3 has coupling means with the rim 42, also in the present embodiment achieved by the seat
  • the projection 31 is shaped as a spherical cap and the seat is complementary shaped, so that the rim and the angle shim will keep in contact even when the frame is tilted by using a different number of shims at the four corners.
  • the secondary frame 1 further comprises abutments 11, limiting the displacement thereof above the border 101, as shown in figures 9 and 10.
  • the present embodiment allows the use of lifting means, hereby realized by the lifting plate 71 and the screw 8, since the resting plate 72 is not required for the presence of the secondary frame.
  • the first embodiment provides the advantage of providing a greater resting surface between the manhole and the pit border, thus allowing to respect more easily the provisions defining the limits in the maximum load bearable by the pit surface.
  • the present invention has hereto been described with reference to preferred embodiments thereof. It is understood that there might be other embodiments referable to the same inventive kernel, all falling within the protective scope of the claims hereinafter.

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)
  • Air-Flow Control Members (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Lift Valve (AREA)

Abstract

La présente invention concerne un kit de réglage pour trous d'homme de puits (100), doté d'un cadre (4) pouvant être posé sur le puits (100), de moyens d'espacement (3), pouvant varier le placement du cadre (4) selon la surface de la chaussée (6), et des moyens de soulèvement (8, 71) du cadre (4), les moyens de soulèvement (8, 71) pouvant être insérés de manière mobile entre le cadre (4) et le puits (100) et comprend une surface de soulèvement (710) et une surface d'assise (720), la distance entre ces deux surfaces (710, 720) étant réglable afin de permettre le soulèvement du cadre (4) en prenant en compte le puits (100).
PCT/EP2007/056036 2006-10-17 2007-06-18 Kit de réglage de trous d'homme pour puits WO2008046668A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL07765473T PL2084333T3 (pl) 2006-10-17 2007-06-18 Zestaw do regulacji włazów do studzienek rewizyjnych
EP07765473A EP2084333B1 (fr) 2006-10-17 2007-06-18 Kit de réglage de trous d'homme pour puits

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000564A ITRM20060564A1 (it) 2006-10-17 2006-10-17 Dispositivo di chiusura regolabile per pozzetti
ITRM2006A000564 2006-10-17

Publications (1)

Publication Number Publication Date
WO2008046668A1 true WO2008046668A1 (fr) 2008-04-24

Family

ID=38616026

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/056036 WO2008046668A1 (fr) 2006-10-17 2007-06-18 Kit de réglage de trous d'homme pour puits

Country Status (4)

Country Link
EP (1) EP2084333B1 (fr)
IT (1) ITRM20060564A1 (fr)
PL (1) PL2084333T3 (fr)
WO (1) WO2008046668A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20120273A1 (it) * 2012-09-19 2014-03-20 Bruno Zanatta Telaio di tombini per pozzetti
CN104631511A (zh) * 2015-02-09 2015-05-20 苏州设计研究院股份有限公司 一种窨井盖盲孔提升装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20160313A1 (it) * 2016-01-22 2017-07-22 Bruno Zanatta Chiusino o caditoia regolabile in altezza e relativo metodo di installazione

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801579A (en) * 1954-09-15 1957-08-06 William U Vinton Manhole extension
US3773428A (en) * 1971-03-12 1973-11-20 Nat Utility Prod Co Adjustable manhole cover support
US4337005A (en) 1981-02-17 1982-06-29 Lebaron Francis Structures for supporting manhole covers, grates and the like provided with self-storing adjustable leveling apparatus
US4673310A (en) 1983-11-14 1987-06-16 E.L. LeBaron Foundry Co. Method of and apparatus for adjustably leveling manhole covers, grates and the like
EP0317189A1 (fr) 1987-11-14 1989-05-24 Sutcliffe, Brian Procédé d'alignement d'une base et d'un cadre à la surface d'une route
DE4400846A1 (de) * 1994-01-14 1995-07-20 Passavant Werke Schachtabdeckung
JPH1018328A (ja) 1996-07-05 1998-01-20 Fukuhara Imono Seisakusho:Kk マンホール蓋受枠
JP2000027217A (ja) 1998-07-09 2000-01-25 Hinode Ltd 地下構造物用蓋の受枠構造
EP1031663A2 (fr) 1999-02-24 2000-08-30 Gottfried Schwarz Regard de chaussée et dispositif de séparation pour découvrir des regards de chaussée
JP2001032306A (ja) 1999-07-26 2001-02-06 Hinode Ltd 地下構造物用蓋の嵩調整構造
JP2002242213A (ja) 2001-01-31 2002-08-28 Gaun Yo マンホール

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801579A (en) * 1954-09-15 1957-08-06 William U Vinton Manhole extension
US3773428A (en) * 1971-03-12 1973-11-20 Nat Utility Prod Co Adjustable manhole cover support
US4337005A (en) 1981-02-17 1982-06-29 Lebaron Francis Structures for supporting manhole covers, grates and the like provided with self-storing adjustable leveling apparatus
US4673310A (en) 1983-11-14 1987-06-16 E.L. LeBaron Foundry Co. Method of and apparatus for adjustably leveling manhole covers, grates and the like
EP0317189A1 (fr) 1987-11-14 1989-05-24 Sutcliffe, Brian Procédé d'alignement d'une base et d'un cadre à la surface d'une route
DE4400846A1 (de) * 1994-01-14 1995-07-20 Passavant Werke Schachtabdeckung
JPH1018328A (ja) 1996-07-05 1998-01-20 Fukuhara Imono Seisakusho:Kk マンホール蓋受枠
JP2000027217A (ja) 1998-07-09 2000-01-25 Hinode Ltd 地下構造物用蓋の受枠構造
EP1031663A2 (fr) 1999-02-24 2000-08-30 Gottfried Schwarz Regard de chaussée et dispositif de séparation pour découvrir des regards de chaussée
JP2001032306A (ja) 1999-07-26 2001-02-06 Hinode Ltd 地下構造物用蓋の嵩調整構造
JP2002242213A (ja) 2001-01-31 2002-08-28 Gaun Yo マンホール

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20120273A1 (it) * 2012-09-19 2014-03-20 Bruno Zanatta Telaio di tombini per pozzetti
WO2014045198A3 (fr) * 2012-09-19 2014-07-24 Bruno Zanatta Cadre de couvercle de trou d'homme pour trous d'homme
CN104520510A (zh) * 2012-09-19 2015-04-15 金晓峰 用于人孔的人孔盖框架
CN104520510B (zh) * 2012-09-19 2017-06-06 金晓峰 用于人孔的人孔盖框架
CN104631511A (zh) * 2015-02-09 2015-05-20 苏州设计研究院股份有限公司 一种窨井盖盲孔提升装置

Also Published As

Publication number Publication date
EP2084333B1 (fr) 2013-03-06
PL2084333T3 (pl) 2013-08-30
EP2084333A1 (fr) 2009-08-05
ITRM20060564A1 (it) 2008-04-18

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