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WO2007077289A1 - Construction de couvercle - Google Patents

Construction de couvercle Download PDF

Info

Publication number
WO2007077289A1
WO2007077289A1 PCT/FI2006/000424 FI2006000424W WO2007077289A1 WO 2007077289 A1 WO2007077289 A1 WO 2007077289A1 FI 2006000424 W FI2006000424 W FI 2006000424W WO 2007077289 A1 WO2007077289 A1 WO 2007077289A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
spring
cover construction
place
construction according
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
PCT/FI2006/000424
Other languages
English (en)
Inventor
Erkki Lehtonen
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.)
SUUNNITTELUTOIMISTO BESTDAN Oy
Original Assignee
SUUNNITTELUTOIMISTO BESTDAN Oy
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 SUUNNITTELUTOIMISTO BESTDAN Oy filed Critical SUUNNITTELUTOIMISTO BESTDAN Oy
Publication of WO2007077289A1 publication Critical patent/WO2007077289A1/fr
Anticipated expiration legal-status Critical
Priority to NO20083329A priority Critical patent/NO20083329L/no
Ceased legal-status Critical Current

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
    • 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
    • E02D29/1427—Locking devices

Definitions

  • the present invention relates to a cover construction and more specifically to s construction, which is used to ensure that a manhole cover will remain in place despite the stresses caused by traffic, for example, or despite attempts by children to open the cover.
  • the cover construction is suitable for use in both large and small covers.
  • the covers of drain, inspection, and other manholes which a located, for example, in streets, are made from cast iron.
  • the casting technology has been used for a long time and cast iron is, as such, an economical material. Dimensioning is also easy, as the thickness of the material can be increased and various reinforcements can be easily added as required/
  • a problem is that, even though the covers are placed quite tightly in various collar constructions, traffic often lifts the covers into the wrong position, where they form a direct danger to both traffic and all other road users.
  • Another safety aspect is that the covers of the smallest manholes are of such a weight that even a child can lift them out of place and cause danger to both itself and the environment.
  • the present invention is intended to create an improvement over the drawbacks afflicting the aforementioned prior art and create construction, which is economical to manufacture, but which nevertheless overcomes all the aforementioned drawbacks-
  • Figure 1 shows an axonometric view of the separate parts of the manhole cover
  • Figure 2 shows the parts of the cover according to Figure 1 , when combined;
  • Figure 3 shows a cross-section, in which the cover is placed in the 'collar'.
  • cover 1 and the spring 2 are two separate pieces.
  • the combination of the pieces 1 and 2 to form a functioning totality is arranged to take place without rivets or other fastenings means.
  • the edge 4 of the cover 1 is slightly conical, in order to ensure that it will sit tightly, and also to ensure that the cover will not easily become stuck in the collar.
  • the reference number 5 is used to mark a slot, which permits a crowbar-like object to be put between the cover and the collar, in order to crowbar the cover open.
  • the spring 2 is manufactured from a suitable material, which has sufficient flexible properties. The material can be steel, aluminium, or even plastic. The spring is shaped in such a way that, when set in place, it sits with its full spring force against the slightly bevelled surface of the collar. This can be seen clearly in the cross-section in Figure 3.
  • grooves 6. 6, into which the spring 2 is pushed, are formed in the cover for the spring 2.
  • the front part 7 of the spring is bent slightly, so that the fastening to the groove 6 will be tight.
  • the friction forces hold the spring in place without rivets, screws, or other fastening means.
  • installation can be assisted by using a suitable pin-like object, which can be pushed through the slot 10 to correspond to the front edge of the curved part 8.
  • Lugs 9 also go into the grooves 6, which prevents the spring from moving in such a way that it could go into the wrong position.
  • Figure 2 shows the spring 2 set in place and is self-explanatory on the basis of the above.
  • Figure 3 shows the manhole collar component 11 , which is of a type that is mainly similar to standard collars that are on the market at present too.
  • the cover 1 is placed on the collar, when the spring 2 sits with a certain force against the sloping surface 12 of the collar.
  • some pin or bar that acts as a lever must be placed in the slot 5 opposite to the spring, and used to crowbar the cover up, using the edge of the collar as a fulcrum, when the spring will release its grip on the edge 12 of the collar and the cover can be removed. Installation in place takes place simply by first of all setting the spring edge in place and then stamping down on the other edge, after which the fastening will be ready.
  • the single-spring arrangement described above is very suitable for use.
  • covers are of very different sizes and for this reason, as the size of the cover increases, the number of springs can be increased.
  • the strength of the spring can be dimensions and should be dimensioned in such a way as to correspond to the intended use.
  • the springs can be thicker, wider, or made from a material giving a greater spring force, than in conventional use.
  • the invention can be varied in many ways. While remaining within the basic idea, i.e. that a separate spring that is set in place without fastening means is used to ensure the fastening, it is possible to use many other kinds of solution for attaching the spring. Many such solutions can be found in different fields of technology.

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

Construction de couvercle, en particulier construction de couvercle en fonte pour trou d'homme, habituellement placée à l'aide d'un collier (11) d'installation approprié sur la surface souhaitée, comme une surface de rue, et généralement formé d'un composant (1) semblable à une plaque équipé ou non de trous et comportant un composant à ressort pour s'assurer qu'il reste en place. Le composant (2) à ressort est formé d'une pièce de ressort séparée qui peut être combinée à la construction de couvercle pour être définitivement en place, sans moyen de fixation entre le couvercle (1) et le ressort. En particulier, la fixation a lieu en enfonçant le composant (2) à ressort dans des rainures formées dans le couvercle.
PCT/FI2006/000424 2005-12-30 2006-12-28 Construction de couvercle Ceased WO2007077289A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO20083329A NO20083329L (no) 2005-12-30 2008-07-29 Lokkonstruksjon

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20051344A FI117763B (fi) 2005-12-30 2005-12-30 Kansirakenne
FI20051344 2005-12-30

Publications (1)

Publication Number Publication Date
WO2007077289A1 true WO2007077289A1 (fr) 2007-07-12

Family

ID=35510707

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2006/000424 Ceased WO2007077289A1 (fr) 2005-12-30 2006-12-28 Construction de couvercle

Country Status (3)

Country Link
FI (1) FI117763B (fr)
NO (1) NO20083329L (fr)
WO (1) WO2007077289A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102448894A (zh) * 2009-06-03 2012-05-09 生物水技术公司 生物净化废水的方法和反应器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991000942A1 (fr) * 1989-07-11 1991-01-24 Von Roll Ag Dispositif de fermeture de puits
DE20200509U1 (de) * 2002-01-15 2002-03-21 ANRIN Anröchter Rinne GmbH, 59609 Anröchte Abdeckrostverriegelung
DE10208729A1 (de) * 2001-09-21 2003-04-30 Ahlmann Aco Severin Oberflächenentwässerungs-Einrichtung
WO2004113632A1 (fr) * 2003-06-25 2004-12-29 Aco Severin Ahlmann Gmbh & Co. Kg Dispositif d'evacuation des eaux de ruissellement
DE102004023829A1 (de) * 2004-05-13 2005-12-08 Aco Severin Ahlmann Gmbh & Co. Kg Schnappriegelbefestigung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991000942A1 (fr) * 1989-07-11 1991-01-24 Von Roll Ag Dispositif de fermeture de puits
DE10208729A1 (de) * 2001-09-21 2003-04-30 Ahlmann Aco Severin Oberflächenentwässerungs-Einrichtung
DE20200509U1 (de) * 2002-01-15 2002-03-21 ANRIN Anröchter Rinne GmbH, 59609 Anröchte Abdeckrostverriegelung
WO2004113632A1 (fr) * 2003-06-25 2004-12-29 Aco Severin Ahlmann Gmbh & Co. Kg Dispositif d'evacuation des eaux de ruissellement
DE102004023829A1 (de) * 2004-05-13 2005-12-08 Aco Severin Ahlmann Gmbh & Co. Kg Schnappriegelbefestigung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102448894A (zh) * 2009-06-03 2012-05-09 生物水技术公司 生物净化废水的方法和反应器
CN102448894B (zh) * 2009-06-03 2014-04-09 生物水技术公司 生物净化废水的方法和反应器

Also Published As

Publication number Publication date
NO20083329L (no) 2008-09-22
FI117763B (fi) 2007-02-15
FI20051344A0 (fi) 2005-12-30

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