EP0732466B1 - Echafaudage - Google Patents

Echafaudage Download PDF

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Publication number
EP0732466B1
EP0732466B1 EP96103009A EP96103009A EP0732466B1 EP 0732466 B1 EP0732466 B1 EP 0732466B1 EP 96103009 A EP96103009 A EP 96103009A EP 96103009 A EP96103009 A EP 96103009A EP 0732466 B1 EP0732466 B1 EP 0732466B1
Authority
EP
European Patent Office
Prior art keywords
load
hydraulic
frame
scaffold according
hydraulic cylinder
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.)
Expired - Lifetime
Application number
EP96103009A
Other languages
German (de)
English (en)
Other versions
EP0732466A1 (fr
Inventor
Martin Lindmeier
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19511837A external-priority patent/DE19511837C1/de
Application filed by Individual filed Critical Individual
Publication of EP0732466A1 publication Critical patent/EP0732466A1/fr
Application granted granted Critical
Publication of EP0732466B1 publication Critical patent/EP0732466B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/18—Scaffolds primarily resting on the ground adjustable in height
    • E04G1/22—Scaffolds having a platform on an extensible substructure, e.g. of telescopic type or with lazy-tongs mechanism

Definitions

  • the invention relates to a scaffold according to the preamble of Claim 1.
  • Height-adjustable scaffolding for example in the form of a Scaffolding with crank adjustment of a load platform are known.
  • crank stages is in a trestle frame Height-adjustable element like a telescopic guide arranged.
  • the height-adjustable element comes with a Crank, which cooperates with an axis, driven.
  • the height-adjustable element has spaced apart Cutouts in which a gear wheel on the axis of the drive element intervenes.
  • EP-A-0 206 382 describes the formation of Load holding valves are known to be used in hydraulic circuits Find.
  • the scaffold is used so that a large number, but at least two scaffolding frames are arranged so that a virtually arbitrary load and work surface each predetermined same working height.
  • the working height is continuously and evenly under load and remotely operated adjustable by the respective hydraulic cylinder of the variety controlled by trestles by means of a hydraulic unit become a gear divider for even Has pressure or hydraulic fluid loading.
  • the hydraulic cylinders each have a load holding valve, so that even after switching off or removing the Hydraulic power pack the selected, current working height preserved.
  • the well-known transport wheel is to avoid lateral tilting when changing the position of the trestle as a double wheel formed, which is arranged on a common axis is.
  • the Load platform support means for holding a foldable Safety railing being in transport or folded down Condition that the safety railing is fixed to the frame rail and Parts of the same a transport handle for easier Change of position of the trestle using the double wheel form.
  • Interchangeable and interchangeable on the load carrier Adapter pads can advantageously be a side Fixing and holding very different covering frames done without costly changes to the trestle themselves are necessary.
  • the foldable safety railing has a locking bracket on, in the event that the railing is in its actual Functional position is in addition, the covering frame and / or the covering there against height Tilting secures.
  • the respective Hydraulic cylinder of the respective trestle almost in the middle arranged a lower frame cross member and on the upper Frame cross member guided so that by means of a single Hydraulic cylinder a telescopic retraction and extension of the Load platform carrier, which is movably guided in the frame bars is can be done.
  • the hydraulic piston is on for undisturbed height adjustment Load platform girder hinged, so that tilting the telescopic guides, especially when retracting the load platform, is almost impossible.
  • Hydraulic connection elements on the cylinder bottom essentially in Width range of the lower frame cross member, through this protected against mechanical damage, arranged. necessary Hydraulic pipes are tight-fitting on the outer peripheral surface of the hydraulic cylinder so that damage, especially mechanical, are reduced.
  • This safety distance is advantageous Embodiment essentially 20 cm.
  • the scaffolding trestles are made possible by the special Hydraulic cylinder with load holding valve located in the lower area locking at any height, even in the Trap if a hydraulic unit is not connected. It is therefore a height locking in any position below guaranteed in all circumstances.
  • the security railing which for example with a Fastening bolt can be fixed folded down enables the use of parts of the security railing, namely the means for hanging railing cross struts as a handle.
  • This handle is for easy moving away of the single trestle by means of the aforementioned double wheels.
  • the longitudinal strut facing away from the wheel Fastening devices for the arrangement of if necessary length-adjustable cross struts that link the trestles to one another connect and secure against slipping, provided.
  • the Adjustable length gives the possibility of the stand spacing to change, which increases the resilience and Covering frames of different dimensions can be used can.
  • the load platform carrier has essentially opposite Bores that lock the adapter supports for a wide variety Cover frames serve.
  • the adapter pads have in Cross section e.g. a triangular or semicircular shape, so that covering frame or stacking frame of the most varied Scaffold manufacturers can be securely locked against slipping, without any constructive in the actual hydraulic frame Changes need to be made.
  • the upper receptacle of the hydraulic piston on the upper frame support so that a U-shaped Reaching around the upper frame support is realized.
  • the scaffolding trestle is also for lifting beams or The like suitable for the ceiling area without crane or other lifting devices must be used.
  • Such other lifting devices can e.g. in the Old building renovation is not to be used without restrictions anyway because there are no known cranes or hydraulic work platforms transported and built into the already converted space can be.
  • Existing locking brackets to accommodate the work platform or a running surface that rests on the work platform are designed so that a projection or nose, as well with the safety railing, the covering frame or on it secure boards.
  • the carrier for the working platform itself can be adjusted in height by means of holes or hydraulically.
  • a large number of hydraulic cylinders are controlled evenly, but the cylinders can also be controlled individually so that a height compensation, e.g. with different Underground, can be made.
  • the unit used is easy to move and can for the control of several groups of hydraulic stands or the Hydraulic cylinders of such trestles are used. About that the unit can also be operated remotely so that the construction worker, which is working on the hydraulic jack, remotely change the height of the trestle or trestles can.
  • the hydraulic jack only moves to a predetermined one Rest height, so that a hazard may be persons below are excluded.
  • the hydraulic jacks themselves are essentially space-saving portable and can be assembled and disassembled with one-man operation become. Thanks to the easy transport, you can also Lifts that cannot be used in certain locations, be replaced. This can be useful, for example, if Beam formwork is to be installed or beams can be added later must be installed.
  • the hydraulic unit provided with a gear meter can be designed so that it is switchable e.g. Ball valves are capable of several Stages, e.g. to operate on large construction sites.
  • a frame 1 is provided with hydraulic height adjustment, which has side rails 6.
  • the frame bars 6 are in the lower area by means of a lower frame cross member 3 and in the upper area by means of an upper frame cross member 4 connected.
  • the frame bars 6 are preferably rectangular or square hollow profile. In the area below are on the frame bars 6 and on the lower frame cross member 3 Support feet 2 arranged. One standing sideways in width Support foot 2.1 is used to hold a joint Axle arranged double wheel 8 for easier transportation of the trestle.
  • a hydraulic cylinder 7 is supported on the lower frame cross member from.
  • the hydraulic cylinder 7 is on the upper frame cross member 4th fixed laterally by means of a clamp 15.
  • the hydraulic cylinder 7 itself takes a hydraulic piston 70 on.
  • the hydraulic piston 70 is movable on by means of a joint Load platform support 5, close to its width center arranged.
  • Hydraulic fluid penetrating into the hydraulic cylinder 7 displaces the hydraulic piston 70, this the load platform carrier 5 adjusted in height.
  • a load holding valve arranged inside the hydraulic cylinder 7 also ensures maintaining a predetermined height in the event of an external pressure no longer being applied or a pressure loss.
  • the load holding valve is expedient located in the cylinder base 10 of the hydraulic cylinder 7.
  • These fasteners 9.3 are designed so that the support bracket 9.1 removed for the work platform 9 and with the cantilever 9.2 of the respective support bracket 9.1 rotated by 180 ° and can be inserted and attached from above so that the Cantilever 9.2 locked above the load platform 5 is, which reduces the transport space of the trestle (Position drawn with broken lines according to Fig. 1a).
  • a safety distance A by corresponding constructive dimensioning preset so that the sufficient occupational health and safety aspects Is taken into account.
  • a safety railing 11 on the side of the load platform support 5 arranged pivotable or foldable.
  • the railing spar for Formation of the security railing 11 can in the transport case can be folded down and locked, making parts of the Railing bracket 12 as a handle for lifting and pushing away the trestle can be used by means of the double wheel 8 can. This results in an easy change of position of the goat even when one-man operation is required.
  • a locking bracket 14 on the railing rail arranged, which is a covering frame in the railing condition and / or a coating applied thereon against tilting guaranteed.
  • adapter pads 13 By means of attached to the load platform support 5 and Interchangeably arranged adapter pads 13 can be completely different topping frames fixed laterally become.
  • the adapter pads 13 form according to their each shape is optimized for the respective covering frame Supporting surface.
  • Hydraulic connection elements 15 are on the cylinder bottom 10 of the Hydraulic cylinder 7 substantially the width of the lower Frame cross member 3 arranged accordingly, so that a as far as possible protection against mechanical damage Connection elements 15 is guaranteed.
  • Required hydraulic tubes 16 are close to the outer peripheral surface of the hydraulic cylinder 7 is provided so that here too the risk of damage is reduced.
  • adjustable cross struts ensure several stages set them up against each other lateral shifting or pushing away under load.
  • In one embodiment of the invention are on one common unit with gear meter for even Pressurizing six hydraulic jacks in a row next to each other connected. This ensures a continuous, flat and extensive load platform and work surface created so that a correspondingly long masonry brisk train can be built around train. Due to the possible remote control the height adjustment of the hydraulic jacks the construction workers do not leave the work area and it can the effectiveness of the work process can be increased.
  • the remote control is by electrical actuation of Solenoid valves of the hydraulic unit reached.
  • the hydraulic jacks are also for lifting beams or The like suitable for the ceiling area, without other Crane or lifting devices must be used. This leads to special advantages e.g. in the renovation of old buildings and reconstruction in buildings with limited space already converted space.
  • the individual scaffolding trestles can be moved together and folded railings transported easily and space-saving or stored with a small footprint.
  • the achievable load capacity is per scaffolding trestle at approx. 1500 kg, with scaffolding group 5 is achieved at a distance between stands of 2.5 m.
  • the particularly narrow design of the hydraulic jack is in the Sectional view along lines BB according to FIG. 2 recognize, the integration of the hydraulic cylinder 7th between the load platform 5 and the lower frame cross member 3 is shown.
  • Fig. 1b shows a section through the trestle along the Line A - A according to Fig. 1a; same parts are here with the each provided the same reference numerals.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Movable Scaffolding (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Claims (10)

  1. Echafaudage, comprenant au moins deux chevalets à réglage hydraulique de hauteur, ceux-ci comprenant respectivement un cadre (1), des pieds d'appui (2) fixés latéralement à des barres (6) du cadre (1), des supports transversaux inférieur (3) et supérieur (4), ainsi qu'un support de plate-forme de charge (5), qui est guidé de manière mobile et réglable en hauteur au moyen de barres latérales dans les barres de cadre (6), ainsi qu'un cylindre hydraulique (7) s'appuyant sur le support transversal inférieur (3), une roue de transport (8) placée sur un autre pied d'appui (2.1) et un dispositif de fixation pour une plate-forme de travail (9), les cylindres hydrauliques (7) étant dimensionnés de manière identique pour former des surfaces de charge et de travail quelconques de hauteur de travail à chaque fois donnée, identique et réglable de manière continue et régulière même sous charge,
       caractérisé en ce qu'au moyen d'un unique groupe hydraulique, une même quantité prédéterminée de liquide hydraulique est envoyée à chaque cylindre hydraulique (7) et chaque cylindre hydraulique (7) présente une vanne de retenue de charge, et en ce que la roue de transport (8) est conformée en roue double (8) sur un axe commun afin d'éviter un basculement latéral lors d'un changement de position du chevalet.
  2. Echafaudage selon la revendication 1, caractérisé en ce que la vanne de retenue de charge est disposée à chaque fois de manière solidaire avec le fond (10) du cylindre hydraulique (7) respectif.
  3. Echafaudage selon l'une des revendications précédentes, caractérisé en ce que le support de plate-forme de charge (5) présente des moyens de réception d'un garde-corps de sécurité rabattable (11), ceux-ci formant, à l'état de transport ou escamoté du garde-corps de sécurité (11), une poignée de transport pour faciliter le changement de position de l'échafaudage au moyen de la double roue (8).
  4. Echafaudage selon l'une des revendications précédentes, caractérisé en ce que le support de plate-forme de charge (5) présente de manière arrêtée des adaptateurs (13) enfichables et interchangeables pour la fixation et la réception latérales de différents cadres de garniture.
  5. Echafaudage selon la revendication 3 et 4, caractérisé en ce que sur le garde-corps de sécurité escamotable (11) est placé un arceau d'arrêt (14) qui, dans l'état d'utilisation du garde-corps, sécurise le cadre de garniture et/ou la gamiture sur la plate-forme de charge.
  6. Echafaudage selon l'une des revendications précédentes, caractérisé en ce que le cylindre hydraulique (7) est sécurisé sur le support transversal supérieur (4) contre un basculement latéral au moyen d'un étrier d'enserrement (15) ou analogue.
  7. Echafaudage selon l'une des revendications précédentes, caractérisé en ce que le piston hydraulique (70) du cylindre hydraulique (7) est monté sensiblement au centre et de manière articulée sur le support de plate-forme de charge (5).
  8. Echafaudage selon l'une des revendications précédentes, caractérisé en ce que la plate-forme de travail (9) est montée de manière amovible au moyen d'une cornière porteuse (9.1) sur la plate-forme de charge (5).
  9. Echafaudage selon l'une des revendications précédentes, caractérisé en ce que des éléments de raccord hydraulique (15) sont placés sur le fond (10) du cylindre sensiblement au niveau de la largeur du support transversal inférieur (3) de manière protégée par celui-ci contre des dégradations mécaniques, et des tuyaux hydrauliques nécessaires (16) s'étendent en étroite proximité avec la surface périphérique extérieure du cylindre hydraulique (7).
  10. Echafaudage selon l'une des revendications précédentes, caractérisé par une distance de sécurité (A) prédéterminée entre le support de plate-forme de charge (5) et le support transversal supérieur (4) à l'état rentré, abaissé de la plate-forme de charge.
EP96103009A 1995-03-13 1996-02-28 Echafaudage Expired - Lifetime EP0732466B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19509015 1995-03-13
DE19509015 1995-03-13
DE19511837 1995-03-30
DE19511837A DE19511837C1 (de) 1995-03-13 1995-03-30 Gerüstbock mit hydraulischer Höhenverstellung

Publications (2)

Publication Number Publication Date
EP0732466A1 EP0732466A1 (fr) 1996-09-18
EP0732466B1 true EP0732466B1 (fr) 2002-05-08

Family

ID=26013323

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103009A Expired - Lifetime EP0732466B1 (fr) 1995-03-13 1996-02-28 Echafaudage

Country Status (3)

Country Link
EP (1) EP0732466B1 (fr)
AT (1) ATE217378T1 (fr)
CZ (1) CZ289665B6 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111501567A (zh) * 2020-04-24 2020-08-07 严学芝 一种应用于桥梁施工的脚手架

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103883114A (zh) * 2012-12-20 2014-06-25 江苏瑞安特重型机械有限公司 一种高空作业安全操作平台
CN104895313B (zh) * 2015-05-21 2019-08-16 中州大学 一种用于建筑施工的平台传动装置
GB2539663B (en) * 2015-06-22 2018-10-03 Safestand Ltd Builders' trestles
CN111810094B (zh) * 2020-08-11 2024-05-24 大庆丹诺石油科技开发有限公司 无游梁式抽油机卸载装置和使用方法
CN114809557B (zh) * 2022-03-24 2024-02-23 安徽理工大学 一种应用于装配式建筑施工支架

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091305A (en) * 1961-04-28 1963-05-28 Fordees Corp Hydraulically operated portable scaffold
US3221838A (en) * 1962-11-08 1965-12-07 Alton M Brayton Deck and lift structure for scaffolding and the like
US3891055A (en) * 1973-12-18 1975-06-24 Alfred A Medlock Self-elevating scaffold construction
DE3509833C1 (de) * 1985-03-19 1986-11-27 MAFISCO Bautechnik GmbH, 7959 Achstetten Hebebühne
IT1187790B (it) * 1985-06-24 1987-12-23 Corghi Elettromecc Spa Impianto idraulico di comando per ponti sollevatori di automezzi in genere
DE9401407U1 (de) * 1994-01-28 1994-08-04 Lindmeier, Martin, 94127 Neuburg Hydraulik-Gerüstbock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111501567A (zh) * 2020-04-24 2020-08-07 严学芝 一种应用于桥梁施工的脚手架

Also Published As

Publication number Publication date
CZ289665B6 (cs) 2002-03-13
CZ74296A3 (en) 1996-10-16
ATE217378T1 (de) 2002-05-15
EP0732466A1 (fr) 1996-09-18

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