EP1972723A2 - Revisionsabdeckung - Google Patents

Revisionsabdeckung Download PDF

Info

Publication number
EP1972723A2
EP1972723A2 EP08151789A EP08151789A EP1972723A2 EP 1972723 A2 EP1972723 A2 EP 1972723A2 EP 08151789 A EP08151789 A EP 08151789A EP 08151789 A EP08151789 A EP 08151789A EP 1972723 A2 EP1972723 A2 EP 1972723A2
Authority
EP
European Patent Office
Prior art keywords
inspection cover
lid
cover according
frame
annular portion
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.)
Withdrawn
Application number
EP08151789A
Other languages
English (en)
French (fr)
Other versions
EP1972723A3 (de
Inventor
Roberto Baccarini
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.)
FIGLI DI ENZO ROSSI S.P.A.
Original Assignee
Silmar Srl
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 Silmar Srl filed Critical Silmar Srl
Publication of EP1972723A2 publication Critical patent/EP1972723A2/de
Publication of EP1972723A3 publication Critical patent/EP1972723A3/de
Withdrawn legal-status Critical Current

Links

Images

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
    • E02D29/1427—Locking devices

Definitions

  • the present invention relates to an inspection cover.
  • inspection covers are constituted generally by a perimetric frame to be embedded in the ground, to which a lid is hinged which is suitable to be arranged, in the closed configuration, within a complementarily shaped annular wall of the frame; an internal annular portion of the lid is designed to rest on a corresponding shoulder which protrudes inside the frame by way of the interposition of an annular sealing element.
  • Such inspection covers are provided generally with reversible locking means for closing the lid onto the frame, so that the lid cannot open inadvertently, when for example a vehicle passes over it, and in any case to prevent anyone from being able to access it easily, if said inspection covers are of the type of the manhole type, i.e., having such dimensions as to allow a person to pass through them.
  • the means for locking the lid to the frame are constituted generally by a screw-and-nut coupling, which is arranged in a recess below the walking surface and is therefore awkward to access and also slow to provide.
  • latch-type locking means which are constituted by a pin which is inserted through the lid and has an actuation head which faces upward from the lid, at the level of the walking surface, and is available to an operator, and a retention element which protrudes radially from the pin below the lid and is positioned, when the lid is closed, below the shoulder of the frame on which the sealing element is arranged and against which the lid abuts; when the lid is closed, by turning the actuation head the lid is released to lift it or couple it to the frame.
  • locking means are widespread and appreciated, they require the provision of a suitable contoured hole for the pin with a recess for the actuation head, and they also require an operation for assembling the retention element to the pin; although the drawbacks of the screw-and-nut system are solved, said locking means introduce the need to fit new components to the inspection cover, with consequent higher costs in terms of manufacture and labor.
  • the aim of the present invention is to provide an inspection cover which solves the drawbacks shown by known types of inspection cover.
  • an object of the present invention is to provide an inspection cover in which the closure of the lid onto the frame is immediate.
  • Another object of the present invention is to provide an inspection cover whose locking means are easy and quick to open.
  • Another object of the present invention is to provide an inspection cover whose mechanical and technical properties are at least equal to those of known types of inspection cover.
  • Another object of the present invention is to provide an inspection cover which is simple to provide.
  • Another object of the present invention is to provide an inspection cover which can be manufactured with known systems and technologies.
  • an inspection cover which comprises a perimetric frame to be embedded in the ground and to which a lid is pivoted which is suitable to be arranged, in the closed configuration, within a complementarily shaped annular wall of the frame, an internal annular portion of said lid being designed to rest on a corresponding shoulder which protrudes within said frame by way of the interposition of an annular sealing element, said lid being closable onto said frame with reversible locking means, said inspection cover being characterized in that said reversible locking means are constituted by at least one elastically flexible bar which is formed on said internal annular portion of the lid and monolithically therewith, said at least one bar having a raised portion which is suitable to engage by snap action within a corresponding recess formed on the internal surface of said annular wall.
  • an inspection cover according to the invention is generally designated by the reference numeral 10 in its first embodiment; such first embodiment of the invention is shown in Figures 1 to 3 .
  • the inspection cover 10 comprises a perimetric frame 11 to be embedded in the ground and to which a lid 12 is pivoted which is suitable to be arranged, in the closed configuration, within a complementarily shaped annular wall 13 of the frame 11.
  • An internal annular portion 14 of the lid 12 is designed to rest on a corresponding shoulder 15 which protrudes inside the frame 11 by way of the interposition of an annular sealing element 17.
  • the lid 12 can be closed onto the frame 11 by way of reversible locking means.
  • Such reversible locking means are constituted by two bars 18 and 19, which are elastically flexible and are formed on the internal annular portion 14 of the lid 12 and monolithically therewith.
  • the bars 18 and 19 each have a raised portion 20 and 21 respectively, which is suitable to engage by snap action within a corresponding recess, 22 for a first raised portion 20 and 23 for the second raised portion 21; the recesses 22, 23 are formed on the internal surface 16 of the annular wall 13.
  • the two elastic bars 18 and 19 are arranged symmetrically and tangentially with respect to the annular portion 14, and the respective raised portions 20 and 21 are provided on the free ends thereof.
  • Each raised portion 20 and 21 has a thickness which decreases continuously from the outside toward the inside of the lid 12, as can be seen clearly in the sectional view of Figure 3 , so as to form an inclined pusher surface when the raised portion 20 and 21, during the closure of the lid 12, comes into contact with the outer edge 24 of the annular wall 13, which produces the inward flexing of the elastic bar 18 and 19 of which the raised portion 20 and 21 is a part.
  • Each recess 22 and 23 is contoured so as to form a guide for the upward exit of the corresponding raised portion 20 and 21.
  • Such guiding element as exemplified in Figure 3 for a first recess 22, is formed by the upper face 22a of the recess 22, which is inclined so as to allow the sliding thereon, so as to exit from said recess, of the corresponding raised portion 20; the same applies also to the second recess 23 and the respective raised portion 21.
  • each one of the elastic bars 18 and 19 is formed on the internal annular portion 14 by a substantially U-shaped slot 25 for the first bar 18 and 26 for the second bar 19; the slots 25, 26 are open on the solid wall which constitutes the internal annular portion 14.
  • Such solid wall which constitutes the internal annular portion 14 therefore has a continuous and uninterrupted lower edge 14a which abuts against the annular sealing element 17, which also is continuous.
  • a compartment 28 for the insertion of a lever-like tool for opening the lid 12 is formed on the annular wall 13 of the frame 11, between the two recesses 22 and 23; a grip tooth 29 for the tool faces the compartment 28 from the lid 12.
  • the perimetric frame 11 has, on its perimetric resting base 30, openings 31 for optimizing the grip of the grout.
  • the annular sealing element 17 is a noise-damping and oscillation-preventing gasket, which also acts as an odor-tight seal, if the inspection cover 10 according to the invention is provided, as in the example described and shown here, with such a shape and dimensions as to be of the manhole type, and is used to close accesses for sewer inspection.
  • the inspection cover 10 according to the invention can be provided preferably by using spheroidal cast iron, but also by using any other equivalent material.
  • the lid 12 pivoted to the frame 11 with a per se known articulation, to enter by gravity the annular wall 13 of the frame 11; the passage of the raised portions 20 and 21 against the annular wall 13 causes the elastic bars 18 and 19 to flex toward the inside of the lid 12 and then return to the initial position when the raised portions 20 and 21 snap into the respective seats 22 and 23 provided on the wall 13.
  • the lid 12 ends its stroke in abutment against the annular sealing element 17.
  • a lever-like tool for example a bar or a crowbar, in the compartment 28, and act so that the end portion of the bar arranged inside the compartment 28 rests on one side against the upper edge of the compartment 28 while it pushes with the end against the tooth 29 which protrudes from the lid 12.
  • a particular advantage provided with the inspection cover 10 according to the invention resides in that the lower edge 14a of the annular portion 14 of the lid is continuous, and when the lid is closed, it presses against the equally continuous sealing element 17.
  • each one of the elastic bars 118 and 119 is formed on the internal annular portion 114 of the lid 112 by a substantially L-shaped slot 125 and 126 which is open onto the solid wall which constitutes the internal annular portion 114; the L-shaped slot 125 and 126 protrudes from the lower edge 114a of the latter.
  • the solid wall that constitutes the internal annular portion 114 has a lower edge 114a with two discontinuous portions whose dimensions are between 5 and 15 mm at the L-shaped slots 125 and 126 and abuts against the continuous annular sealing element 117.
  • the seal formed by the closure of the lower edge 114a on the sealing element 117 is therefore slightly inferior to the one achieved with the first embodiment 10 of the inspection cover described above, but is in any case better than similar known types of inspection cover, which generally have closure means which are structured so that the sealing element is interrupted and therefore the ability to retain odors is inferior.
  • the present invention provides an inspection cover in which the closure of the lid onto the frame is immediate, since it is sufficient to lower the lid 12 onto the frame 11 to achieve the automatic snap insertion of the raised portions 20 and 21 in the respective seats 22 and 23.
  • the present invention provides an inspection cover whose locking means are easy and quick to open, since a tool with which to act as a lever, as described above, is sufficient.
  • the invention provides an inspection cover whose mechanical and technical properties are not inferior to those of known types of inspection cover.
  • the inspection cover according to the invention allows to achieve an optimum hermetic closure in order to prevent the escape into the environment of the odors and stenches that rise for example from a sewer system inspection well to which it is applied.
  • the materials employed may be any according to requirements and to the state of the art.
EP08151789A 2007-03-21 2008-02-22 Revisionsabdeckung Withdrawn EP1972723A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITPD20070101 ITPD20070101A1 (it) 2007-03-21 2007-03-21 Chiusino perfezionato

Publications (2)

Publication Number Publication Date
EP1972723A2 true EP1972723A2 (de) 2008-09-24
EP1972723A3 EP1972723A3 (de) 2009-04-01

Family

ID=39402782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08151789A Withdrawn EP1972723A3 (de) 2007-03-21 2008-02-22 Revisionsabdeckung

Country Status (2)

Country Link
EP (1) EP1972723A3 (de)
IT (1) ITPD20070101A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010123217A2 (ko) * 2009-04-20 2010-10-28 Song In Jin 맨홀 커버 조립체
ITVI20100092A1 (it) * 2010-04-01 2011-10-02 Pro S R L Sa Dispositivo di chiusura per pozzetti e simili.
CN112177053A (zh) * 2020-09-30 2021-01-05 萧县冠达新型墙体材料有限责任公司 一种安全防盗且具有防异味功能的市政井盖

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL83644C (de) * 1900-01-01
NL7905854A (nl) * 1979-07-30 1981-02-03 Raatjes Egbertus Sijbolt Afdekking.
FR2711688B1 (fr) * 1993-10-26 1995-12-29 Pont A Mousson Regard de chaussée à verrouillage par rotation du tampon.
DE20001719U1 (de) * 2000-02-01 2000-03-16 Betonwerk Und Eisengieserei Be Schachtabdeckung
DE20008820U1 (de) * 2000-05-16 2000-08-17 Heinrich Meier Eisengieserei G Schachtanordnung
DE20010316U1 (de) * 2000-06-08 2001-10-18 Broermann Rita Rinnenelement
DE202005010323U1 (de) * 2005-07-01 2005-09-15 Heinrich Meier Eisengieserei G Schachtabdeckung mit dämpfender Einlage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010123217A2 (ko) * 2009-04-20 2010-10-28 Song In Jin 맨홀 커버 조립체
WO2010123217A3 (ko) * 2009-04-20 2011-01-06 Song In Jin 맨홀 커버 조립체
ITVI20100092A1 (it) * 2010-04-01 2011-10-02 Pro S R L Sa Dispositivo di chiusura per pozzetti e simili.
EP2372028A1 (de) * 2010-04-01 2011-10-05 S.a.pro. S.r.l. Abdeckung für einen Strassenschacht
CN112177053A (zh) * 2020-09-30 2021-01-05 萧县冠达新型墙体材料有限责任公司 一种安全防盗且具有防异味功能的市政井盖
CN112177053B (zh) * 2020-09-30 2021-11-19 重庆洁环水处理设备有限公司 一种安全防盗且具有防异味功能的市政井盖

Also Published As

Publication number Publication date
ITPD20070101A1 (it) 2008-09-22
EP1972723A3 (de) 2009-04-01

Similar Documents

Publication Publication Date Title
US20140210330A1 (en) Device for Releasably Connecting a Furniture Pull-Out, Which is Movable Guided in a Furniture Carcass via a Guidance Unit to Said Guidance Unit
EP1972723A2 (de) Revisionsabdeckung
US9095967B2 (en) Wood chisel and blade for a wood chisel
EP2816161A1 (de) Popup-installationsstruktur für eine spüle und installationsverfahren
US20150372411A1 (en) Tamper resistant receptacle shutter with friction reducing lead in configuration
US7201361B2 (en) Gate valve having reduced friction
JP5332815B2 (ja) ボトルの蓋制動構造
US20070039483A1 (en) Double-sided fry pan
KR102145789B1 (ko) 천장에 시공되는 점검구
EP2248969A1 (de) Schloss und Umbausatz für Schloss
ITTO20030048U1 (it) Dispositivo di fissaggio per ancoraggio su sede ricevente.
RU2429535C2 (ru) Устройство для приема карточки
EP1965016A2 (de) Dichtungsstreifen, insbesondere für Holztüren
JP4835524B2 (ja) 宅配ボックス
KR100712408B1 (ko) 경사형 잠금장치 맨홀
WO2010012743A1 (en) Device for anchoring the free end of a chain of a chain-type actuator to a shutter
KR101183470B1 (ko) 복귀가 자동으로 이루어지는 도어 스토퍼
EP1615249A3 (de) Schalter
DK2675332T3 (en) Langsomtlukkende mechanism for toilet cover
KR200485914Y1 (ko) 슬라이딩 창호용 관통홀 마감커버
KR200397584Y1 (ko) 건물 외벽의 돌출무늬 성형용 거푸집의 마감부재
JP2553208Y2 (ja) マンホール鉄蓋用ロック部材
JP6392168B2 (ja) 飾り部材の取付構造
KR0113133Y1 (ko) 출입구 개폐장치의 티켓 이송가이드 잠금장치
JP2010127068A (ja) スライド式ドアストッパー

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: FIGLI DI ENZO ROSSI S.P.A.

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK

17P Request for examination filed

Effective date: 20090728

17Q First examination report despatched

Effective date: 20090915

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20130122