EP2712979A1 - Échafaudage fourni avec un dispositif de protection anti-chute - Google Patents
Échafaudage fourni avec un dispositif de protection anti-chute Download PDFInfo
- Publication number
- EP2712979A1 EP2712979A1 EP20130186907 EP13186907A EP2712979A1 EP 2712979 A1 EP2712979 A1 EP 2712979A1 EP 20130186907 EP20130186907 EP 20130186907 EP 13186907 A EP13186907 A EP 13186907A EP 2712979 A1 EP2712979 A1 EP 2712979A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- cable
- scaffold
- structure according
- tubes
- 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- Withdrawn
Links
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/001—Safety or protective measures against falling down relating to scaffoldings
Definitions
- the present invention relates to a building structure comprising a horizontal tube.
- safety measures must increasingly be taken to limit the risk of falling and/or limit the consequences thereof.
- An example thereof is found with scaffolding, where strict requirements are placed on guardrails and other protective measures, so that the people working on the scaffold, for example on a building, are not exposed to the risk of falling from the scaffold.
- said building structure comprises a horizontal tube provided with a fall protection device, wherein said fall protection device comprises a cable which extends along said tube for attaching a belt or the like thereto, one end of which tube is provided with an opening, wherein said cable extends through said opening into the interior of said tube, and wherein a free end of said cable which is located in said tube is secured via a damper arranged in said tube.
- a cable which extends parallel to the tube and to which the person working on the scaffold may be attached by means of a belt with an eyelet. He therefore has freedom of movement over the entire length of the tube.
- a load on the tube will involve a bending load and/or in particular a crushing load.
- the resistance of the tube to bending depends on the material and the cross section of the tube. In the case of an aluminium tube, for example, the resistance to crushing will be significant.
- the moment caused by the force of the fall will be relatively small and is able to be transmitted directly into the rest of the structure, such as a scaffold, via the coupling of a horizontal tube, for example.
- the damper may comprise a structure which increases the length of the cable outside the tube in a damped manner, for example a friction damper and/or a spring.
- each cable end is preferably connected to one single spring.
- the spring load is preferably such that, in the position of use, that is to say without the exertion of any load, the cable extends as far as possible taut along the tube.
- the spring used may be a tension spring or a compression spring.
- the cable ends are always attached at the end of the spring.
- the cable ends extend through the interior of such a coil spring and are supported on the coil spring at opposite ends.
- the openings in the tube may be of a relatively simple design.
- cable guides are present in order to as far as possible prevent the cable from being restrained due to friction at the opening.
- These cable guides may comprises plastic parts, for example, as a result of which a pulling movement on the outside of the tube is converted directly into a pulling movement on the cable on the inside of the tube.
- such a guide comprises a wheel.
- the tube may also be designed in another manner depending on the structure in which the fall protection device according to the invention is arranged.
- said tube is preferably provided with a coupling at both ends.
- a scaffold tube of this type forms part of a platform which is arranged between two uprights of a scaffold structure and on which the worker is able to walk.
- a scaffold tube of this type forms part of a platform which is arranged between two uprights of a scaffold structure and on which the worker is able to walk.
- the present invention also relates to a method for erecting a scaffold, comprising providing a number of vertical and horizontal scaffold tubes and connecting said tubes to one another, wherein one of the higher tubes of said horizontal scaffold tubes is provided with a cable which is connected thereto and extends parallel thereto, attaching a belt which is connected to the builder of said scaffold to said cable, wherein the builder can move along said cable by means of said belt.
- the invention relates to a method for erecting a scaffold, comprising:
- the method comprises:
- the present invention also relates to a further method for erecting a scaffold, comprising:
- Fig. 3 shows an example of the tube 7 of a platform 4 or 24 in a cut-away illustration. It can be seen that the ends of the tube are provided with couplings 8. It will be understood that said couplings may have a different configuration or that, depending on the use, such couplings may be present only on one side, or not at all.
- the tube 7 is provided with openings 15 close to the ends thereof. Cable guides such as wheels 14 are arranged in said openings 15.
- the cable 6 extends horizontally through said openings 15 along the wheels 14 on either side of the interior of the tube.
- a coil spring 16 is arranged in the interior of the tube.
- the cable ends extend through the interior of the coil spring so that cable end 17 is connected to the left-hand end (in Fig. 3 ) of the coil spring and cable end 18 is connected to the right-hand end.
- the coil spring may be supported in any way or be arranged loosely in the tube.
- the prestress of the coil spring or the shortening of the cable or line 6 is configured in such a way that in the unloaded state cable 6 runs relatively taut along the outside of the tube.
- the free movement of a ring or hook 12 to which the belt 11 of the person 9 is attached is always readily possible. Free movement is possible predominantly along the cable, i.e. in the longitudinal direction of the cable.
- the tension on the cable means that the freedom of movement is limited in the direction transverse to the cable, which increases safety.
- Fig. 4 diagrammatically shows the position in the event of an unforeseen fall.
- the fall generates a force F in the part of the cable 6 which is located outside the tube, as a result of which the cable is pulled to the outside. This occurs counter to the effect of the spring force of the coil spring 16 which is compressed as shown in Figure 3 .
- the fall is damped with the aid of the coil spring and the load caused by the fall is transmitted into the tube 7 and then diverted into the rest of the structure 1 more gradually and with fewer peaks.
- a relatively lightweight construction of the tube 7 is sufficient, and said tube 7 can therefore be fitted in a simple manner and without an excessive amount of effort.
- Fig. 5 illustrates a scaffold 1.
- the scaffold 1 comprises a number of horizontal tubes 7 provided with a fall protection device according to the present invention.
- the number of tubes 7 is arranged along an imaginary line 18 and thus offers workers a greater freedom of movement in the longitudinal direction of the cable, which guarantees safety.
- the cable 6 extends along one tube 7 as shown in Fig. 4 .
- the number of tubes 7 provides workers with protection from falling while they are positioning the next layer onto the existing layer 23, or board, of the scaffold 1, or when working on a building against which the scaffold 1 has been erected.
- Figures 6 and 7 show successive steps in a method for erecting a scaffold.
- a number of vertical and horizontal scaffold tubes are provided which are connected to one another to form a scaffold layer 23 alongside a building 22.
- some of the tubes are provided in the form of a preformed frame 19, or gantry 19.
- Figure 6 also shows that two tubes 21a, 21b are connected to the scaffold 1 at a distance from one another.
- These two scaffold tubes 21a, 21b are each provided with a fall protection device.
- Said fall protection device comprises a cable 6 connected to the two tubes, which tubes are provided with an opening 15 at an end thereof ( Fig. 3 ). The cable 6 extends through said openings into the interior of said tubes.
- a free end 17; 18 of said cable 6 which is located in said tubes is secured via a damper 16 arranged in said tubes. It is also conceivable for only one tube to be provided with an above-described fall protection device.
- the tubes 21 a, 21b are arranged with respect to the scaffold layer 23 in such a way that the tube end 24 provided with the opening extends above the scaffold layer 23 so that the cable 6 is able to extend above the scaffold layer 23 in order to provide people working on the scaffold layer 23 with protection from falling while they are positioning the next scaffold layer, as shown in Fig. 7 .
- the scaffold tubes 2 1 a, b are pivotably connected to the scaffold 1 and assume a vertical position.
- the cable 6 extends horizontally and parallel to the scaffold layer 23.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Emergency Lowering Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2009545A NL2009545C2 (nl) | 2012-10-01 | 2012-10-01 | Steiger voorzien van valbeveiliging. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2712979A1 true EP2712979A1 (fr) | 2014-04-02 |
Family
ID=47074860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20130186907 Withdrawn EP2712979A1 (fr) | 2012-10-01 | 2013-10-01 | Échafaudage fourni avec un dispositif de protection anti-chute |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2712979A1 (fr) |
| NL (1) | NL2009545C2 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230391A (zh) * | 2019-06-13 | 2019-09-13 | 杜希田 | 一种高空施工用脚手架 |
| EP3611313A1 (fr) * | 2018-08-17 | 2020-02-19 | KERO GmbH + Co. KG | Dispositif de fixation des charges à la face inférieure d'un plancher d'un échafaudage |
| JP7582105B2 (ja) | 2021-07-16 | 2024-11-13 | 株式会社ダイフク | 物品搬送設備 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2538904A (en) * | 1948-10-19 | 1951-01-23 | Patrick J Hurley | Tower ladder safety device |
| US3137487A (en) * | 1963-09-18 | 1964-06-16 | Lesser Frank | Safety belt for scaffolds |
| JPS5235424A (en) * | 1975-09-12 | 1977-03-18 | Fuji Electric Co Ltd | Assembling safety fence |
| FR2712916A1 (fr) * | 1993-11-26 | 1995-06-02 | Mounier Alain | Dispositif de tension d'un câble de sécurité. |
| US8157057B1 (en) * | 2007-03-16 | 2012-04-17 | Kenneth Johnson | Safety apparatus for scaffolding |
-
2012
- 2012-10-01 NL NL2009545A patent/NL2009545C2/nl not_active IP Right Cessation
-
2013
- 2013-10-01 EP EP20130186907 patent/EP2712979A1/fr not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2538904A (en) * | 1948-10-19 | 1951-01-23 | Patrick J Hurley | Tower ladder safety device |
| US3137487A (en) * | 1963-09-18 | 1964-06-16 | Lesser Frank | Safety belt for scaffolds |
| JPS5235424A (en) * | 1975-09-12 | 1977-03-18 | Fuji Electric Co Ltd | Assembling safety fence |
| FR2712916A1 (fr) * | 1993-11-26 | 1995-06-02 | Mounier Alain | Dispositif de tension d'un câble de sécurité. |
| US8157057B1 (en) * | 2007-03-16 | 2012-04-17 | Kenneth Johnson | Safety apparatus for scaffolding |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3611313A1 (fr) * | 2018-08-17 | 2020-02-19 | KERO GmbH + Co. KG | Dispositif de fixation des charges à la face inférieure d'un plancher d'un échafaudage |
| CN110230391A (zh) * | 2019-06-13 | 2019-09-13 | 杜希田 | 一种高空施工用脚手架 |
| CN110230391B (zh) * | 2019-06-13 | 2021-09-10 | 天津九为实业有限公司 | 一种高空施工用脚手架 |
| JP7582105B2 (ja) | 2021-07-16 | 2024-11-13 | 株式会社ダイフク | 物品搬送設備 |
Also Published As
| Publication number | Publication date |
|---|---|
| NL2009545C2 (nl) | 2014-04-02 |
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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 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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| AX | Request for extension of the european patent |
Extension state: BA ME |
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| 17P | Request for examination filed |
Effective date: 20141001 |
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| RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| 17Q | First examination report despatched |
Effective date: 20150506 |
|
| 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: 20151117 |