EP2287106B1 - Plate-forme de travail de longueur réglable - Google Patents

Plate-forme de travail de longueur réglable Download PDF

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Publication number
EP2287106B1
EP2287106B1 EP10190962.0A EP10190962A EP2287106B1 EP 2287106 B1 EP2287106 B1 EP 2287106B1 EP 10190962 A EP10190962 A EP 10190962A EP 2287106 B1 EP2287106 B1 EP 2287106B1
Authority
EP
European Patent Office
Prior art keywords
work
elements
work platform
extension
platform 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.)
Active
Application number
EP10190962.0A
Other languages
German (de)
English (en)
Other versions
EP2287106A3 (fr
EP2287106A2 (fr
Inventor
Günther Krause
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.)
Krause Werk GmbH and Co KG
Original Assignee
Krause Werk GmbH and Co KG
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 Krause Werk GmbH and Co KG filed Critical Krause Werk GmbH and Co KG
Priority to PL10190962T priority Critical patent/PL2287106T3/pl
Publication of EP2287106A2 publication Critical patent/EP2287106A2/fr
Publication of EP2287106A3 publication Critical patent/EP2287106A3/fr
Application granted granted Critical
Publication of EP2287106B1 publication Critical patent/EP2287106B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • 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
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/152—Platforms made of metal or with metal-supporting frame
    • 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
    • E04G5/08—Scaffold boards or planks
    • 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
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G2001/157—Extensible platforms, e.g. telescopic platforms

Definitions

  • the invention relates to a variable-length work platform, in particular stage, screed, bridge, bridge or the like, with a base surface device with a worktop element and an expansion surface device with two extension elements, which are receivable by the worktop element.
  • Length-adjustable work platforms are regularly used in the manner of a stage, screed, bridge or the like on, for example, construction sites. Compared to conventional, often wooden planks or scaffolding, such work platforms have the advantage that they are variable in length within an adjustment. For example, the work platform can be easily adapted to a distance between two trestles or scaffolding elements. Also, the transport and handling of such work platforms is relatively simple, since they can be shortened to a minimum length.
  • variable-length work platforms are composed of a plurality of aluminum hollow profiles.
  • the aluminum hollow profiles are arranged in the longitudinal direction parallel to each other, so that a usable working surface is formed from an upper side of the hollow profiles.
  • Fastening tabs arranged transversely to the work platform on the work platform connect the hollow sections to one another, wherein one set of tabs connects each second hollow section and a second set of tabs connects each second, intermediate hollow section.
  • a variable-length work platform of the type mentioned is the DE-U-94 15 276 refer to.
  • the work platform referred to as a working platform has a designed as a rectangular profile inner working surface element and lateral to this folding work surface elements.
  • two pull-out elements designed as rectangular hollow profiles are displaceably arranged, of which in each case one pull-out element passes through one of the end faces of the inner work surface element.
  • a working platform for lifts and scaffolding is from the DE-U-200 05 934 known.
  • the work platform is designed as a frame construction, which consists of two longitudinal frames, two transverse frames and two cross members. With the appropriate frame construction floor elements are welded. In the bottom elements extracts can be introduced independently of each other front sides, which serve to enlarge the working platform.
  • An aerial work platform is out of the DE-U-94 11 518 known.
  • the aerial work platform includes a work platform with independently extractable pull-outs.
  • the present invention is based on the object, a variable-length work platform of the type mentioned in such a way that it can be produced in a simple design with relatively few parts, has a relatively low weight and is easy to handle.
  • the work surface is to have a high stability even when pulled out of the work surface element extract elements.
  • the invention essentially provides that the work surface element as a rectangular hollow profile with a longitudinal inner web is formed, which divides the rectangular hollow profile of the worktop element into two pullout element receptacles for receiving in each case one of the two formed as a rectangular hollow profile pull-out elements, and that lying outside of the worktop element ends of the pullout elements to form a substantially closed working surface of the extension surface means are connected to each other via a closure element.
  • variable-length work platform has a base surface device with a worktop element and an extension surface device with at least two pullout elements, wherein the pullout elements are receivable by the worktop element.
  • the work platform can be produced from only three components, wherein the pull-out elements are inserted in a Verwahrposition in the worktop element. To form a maximum working surface, the pull-out elements can be pulled out of the worktop element, wherein the worktop is then substantially closed and there are no stumbling blocks for users. Due to the low number of parts and the weight of the work platform is relatively low.
  • the worktop element and the pull-out elements are each a hollow profile with a rectangular cross-section.
  • the pull-out elements can then be stored particularly easily in the worktop element.
  • the use of such hollow profiles results in a high stability of the work platform with a simple design, wherein the torsion is significantly reduced.
  • At least one web can be formed on the work surface element which runs between the extension elements and forms pull-out element receptacles for receiving the pull-out elements.
  • each pull-out element has its own pull-out element holder and the bar increases the stability of the work platform.
  • any widths of working platforms can be formed if more than two extension elements are used, which are each separated by a web recorded in the work surface element, wherein the pull-out elements increase the stability of such a work platform, in particular by their profile side surfaces.
  • the pull-out elements can be pulled out of the work surface element, without causing tilting of the pull-out elements in the work surface element.
  • the guide device is at least one sliding element, so that the pull-out elements can be moved particularly easily in the work surface element.
  • a sliding element may surround one end of an extension element circumferentially, so that the extension element is spaced from a working surface element.
  • a plurality of sliding elements may be arranged on the circumference of an extension element.
  • the sliding elements can be produced particularly cost-effectively, for example, as an injection-molded part made of plastic.
  • a stop device limits an extension length of the extension surface device from the base surface device in an end position such that the extension elements are partially received by the work surface element.
  • the end position can be selected depending on profile cross sections of the pull-out elements or of the worktop element such that a subsection of the pull-out elements is received or covered by the worktop element.
  • Such a profile overlap in a central region of the working platform is particularly advantageous in the case of high bending stresses acting in this area.
  • the work platform can have a locking device, by means of which the expansion surface device can be locked in a storage position in the base surface device.
  • the pull-out elements can be further from the locking force or positive locking in any relative position be locked to the working surface element. For example, by means of a kind of toothed rail or a row of holes, which allow a substantially stepless locking.
  • Particularly simple locking device can be formed if this has a spring-actuated latch which is received in the expansion surface device.
  • a bolt automatically locks the expansion surface device in a storage position, wherein the lock can be released by simple manual operation of the bolt.
  • the arrangement of the locking device in the expansion surface device is particularly advantageous, since so no components that can pose a risk of injury, the work platform protrude.
  • the base surface device and the expansion surface device each have a closing element at the outer ends of the working platform.
  • profiles of pull-out elements can be connected to one another at an outer end so that they can be pulled out of a work surface element with only one hand, and on the other hand, all the profile openings located at the outer ends of the work platform can be closed or reinforced with the closure elements, so that Ingress of dirt into the interior or damage to outer corners of the work platform is avoided.
  • the working platform is particularly easy to handle if the end element of the expansion surface device has a stop which limits the expansion surface device in the storage position such that the extension surface device can be handled by means of the end element.
  • a stop can be formed, for example, between the closing element and a frontal outer edge of a profile of a worktop element, so that pull-out elements are not completely included in the worktop element and can be easily detected or taken on the closing element for pulling the pull-out elements from the worktop element manually.
  • the work platform is particularly slip-resistant if the end elements each have rubber pads. These slip-resistant rubber pads can be fixed on the contact surface side and / or on the working surface side by means of rivets or adhesive material on or on the end elements. Such rubber pads can slip a z. B. on stairs laid work platform. Also, the rubber pads can form a stop, the eventual slipping of z. As ladder rungs or ladder steps or prevented by goats.
  • the work surface element and the extension elements may have a longitudinal surface structure.
  • a surface structure can effectively prevent slippage from the work platform. If the surface structure in the longitudinal direction interrupted strip-like, these structureless surface strips are particularly well suited for contact with sliding elements. Thus, a good displaceability of the pull-out elements in the worktop element, as well as a desired slip resistance of the surface of the work platform can be ensured.
  • FIG. 1 An embodiment of a working platform 20 illustrates a synopsis of Fig. 1 to 3 showing the work platform 20 in different views.
  • the working platform 20 is shown in a storage position, wherein pullout elements 21, 22 are inserted into a working surface element 23.
  • the pull-out elements 21, 22 and the worktop element 23 are formed from hollow aluminum profiles with a surface longitudinal structuring 24, wherein at their respective outer ends 25 and 26, a closing element 27 and 28 by means of rivets 29 on the working surface element 23 and on the pullout elements 21 and 22, this is fastened connecting.
  • the working surface element 23 and the pull-out elements 21 and 22 have bores 30 into which inner and outer sliding elements 31 and 32 are inserted.
  • FIG. 9 which shows the outer sliding member 32 in a perspective view.
  • the inner sliding elements 31 are each supported on the working surface element 23 and form a sliding guide 33 for the extension elements 21 and 22, wherein these each form a sliding guide 34 with the outer sliding elements 32.
  • the sliding guides 33 and 34 thus enable a longitudinally displaceable relative arrangement of the pull-out elements 21 and 22 in the work surface element 23, wherein the storage position shown is limited by a stop 35 which is formed between the closure element 28 and the work surface element 23 is.
  • a locking device 36 for locking the connected extension elements 21 and 22 is further arranged in the Verwahrposition shown.
  • the 4 and 5 show a partial section of the working platform 20 in a plan view and in a side view, wherein the pull-out elements 21 and 22 are partially pulled out of the work surface element 23, so that the working platform 20 is extended in its length.
  • An abutment device 37 with stop elements 38 and 39 limits an end position of the extension length of the working platform 20 such that an overlap of the extension elements 21 and 22 is ensured by the working surface element 23, wherein the sliding guides 33 and 34, the extension elements 21 and 22 with the working surface element 23 fitting connect.
  • a bending stress, caused, for example, by a person located on the work platform 20, is thus particularly well derivable in the covering area of the extension elements 21 and 22 with the working surface element 23.
  • the stop elements 38 and 39 are respectively fastened on the extension element 22 or on the work surface element 23 so that the stop device 37 is formed within the work surface element 23 and does not pose a risk of injury to a user.
  • Fig. 6 shows the outer end 26 of the working platform 20 in a perspective view.
  • a recess 40 is formed with a slot 41, wherein a latch 42 of the locking device 36 can be handled without the latch 42 projects beyond the outer end 26. If, for example, the work platform 20 is to be transferred to an expansion position, unlocking of the illustrated storage position is possible by simple manual actuation of the bolt 42, the end element 28 being grasped simultaneously with one hand and the pull-out elements 21 and 22 exercised by exerting a tensile force in the longitudinal direction of the work platform 20 can be pulled out of the work surface element 23.
  • Fig. 7 shows a sectional view of the working platform 20 along a line VII-VII Fig. 2 ,
  • the work surface element 23 has centrally in the longitudinal direction a web 43, the receiving chambers 44 and 45 of the working surface element 23 forms.
  • the pull-out elements 21 and 22 are respectively inserted into the receiving chambers 44 and 45 and, as shown here, guided by the inner sliding elements 21.
  • the inner sliding elements 31 each have a plurality of grooves 46 which receive the surface structuring 24 of the extension elements 21 and 22 without the surface structure 24 touching the inner sliding elements 31.
  • the locking device 36 is held on the extension element 21 by means of an angle element 47 and engages with the latch 42 in a not visible here recess in the web 43 a.
  • the locking device 36 may also be supported in an embodiment not shown here by means of a U-profile on the extension element 21.
  • the stop element 39 is fixed in the web 43.
  • Fig. 8 shows a partial sectional view along a line VIII-VIII Fig. 7 ,
  • the stop 35 is, as shown in detail here, formed between beads 48 of the end element 28 and collars 49 of the inner sliding elements 31.
  • the bolt 42 is rotatably supported by means of a rivet 50 on the angle member 47 and the U-profile, not shown here, and is pressed by a spring 51 against the web 43, so that the latch 42 rests on the web 43 and in the Verwahrposition in the here not shown recess in the web 43 locked.
  • An outer sliding member 32 is in Fig. 9 shown in perspective.
  • the outer slide member 32 has a lower surface 52 for sliding contact with an inner surface 53 of the work surface member 23 and an upper surface 54 for attachment to one of the extension members 21 and 22, respectively.
  • Grooves 55 are formed on the upper side 54 and receive the surface structuring 24 of the pull-out elements 21 and 22.
  • 54 coupling members 56 are formed on the upper side, which are in the holes 30 of the pullout elements 21 and 22 are used, so that the outer sliding elements 32 are connected within a component network of the working platform 20 fixed to the pullout elements 21 and 22 respectively.
  • the outer sliding member 32 further comprises an outer and inner lug 57 and 58, respectively, which engage around respective longitudinal edges 59 of the pullout elements 21 and 22.
  • variable-length work platform arise when the end elements 27 and 28 are provided with anti-slip rubber pads. These are fixed on the contact surface side and / or on the working surface side by means of rivets or adhesive material on or on the end elements 27 and 28.
  • the rubber pads prevent slipping of z. B. placed on stairs work platform 20 or form a stop against a possible slipping of z. B. ladder rungs or ladder steps or of goats.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Ladders (AREA)
  • Bridges Or Land Bridges (AREA)
  • Road Repair (AREA)

Claims (10)

  1. Plateforme de travail à longueur variable (20), en particulier échafaudage, madrier, passerelle, pont ou similaire, comprenant un dispositif à surface de base pourvu d'un élément de surface de travail (23) et un dispositif à surface d'extension pourvu de deux éléments d'extension (21, 22) qui peuvent être logés dans l'élément de surface de travail,
    caractérisée en ce
    que l'élément de surface de travail (23) est conçu en tant que profilé creux rectangulaire avec une âme intérieure (43) s'étendant dans le sens longitudinal et qui subdivise le profilé creux rectangulaire de l'élément de surface de travail (23) en deux logements d'élément d'extension (44, 45) destinés à loger chacun l'un des deux éléments d'extension (21, 22) conçus en tant que profilés creux rectangulaires, et que les extrémités des éléments d'extension situées hors de l'élément de surface de travail sont reliées entre elles par un élément de bordure (28) afin de former une surface de travail pour l'essentiel fermée du dispositif à surface d'extension.
  2. Plateforme de travail selon la revendication 1,
    caractérisée en ce
    que l'élément de surface de travail (23) et les éléments d'extension (21, 22) présentent respectivement un dispositif de guidage (33, 34) destiné à guider les éléments d'extension dans l'élément de surface de travail.
  3. Plateforme de travail selon la revendication 2,
    caractérisée en ce
    que le dispositif de guidage (33, 34) est au moins un élément coulissant (31, 32).
  4. Plateforme de travail selon la revendication 1,
    caractérisée en ce
    qu'un dispositif de butée (37) limite une longueur d'extension du dispositif à surface d'extension à partir du dispositif à surface de base dans une position finale de manière telle que les éléments d'extension (21, 22) sont partiellement logés dans l'élément de surface de travail (23).
  5. Plateforme de travail selon au moins la revendication 1,
    caractérisée en ce
    que la plateforme de travail (20) présente un dispositif de blocage (36) au moyen duquel le dispositif à surface d'extension peut être bloqué dans une position de rangement dans le dispositif à surface de base.
  6. Plateforme de travail selon la revendication 5,
    caractérisée en ce
    que le dispositif de blocage (36) présente un loquet (43) actionné par ressort qui est logé dans le dispositif à surface d'extension.
  7. Plateforme de travail selon la revendication 1,
    caractérisée en ce
    que le dispositif à surface d'extension traverse une face frontale de l'élément de surface de travail (23) et que la face frontale opposée de l'élément de surface de travail présente un élément de bordure (27).
  8. Plateforme de travail selon la revendication 1,
    caractérisée en ce
    que l'élément de bordure (28) du dispositif à surface d'extension présente une butée (35) qui limite le dispositif à surface d'extension dans la position de rangement de manière telle que le dispositif à surface d'extension peut être manipulé au moyen de l'élément de bordure.
  9. Plateforme de travail selon au moins la revendication 1 et la revendication 7,
    caractérisée en ce
    que les éléments de bordure (27, 28) présentent chacun des appuis en caoutchouc.
  10. Plateforme de travail selon au moins la revendication 1,
    caractérisée en ce
    que l'élément de surface de travail (23) et les éléments d'extension (21, 22) présentent une structure superficielle (24) s'étendant dans le sens longitudinal.
EP10190962.0A 2007-02-08 2008-01-24 Plate-forme de travail de longueur réglable Active EP2287106B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10190962T PL2287106T3 (pl) 2007-02-08 2008-01-24 Platforma robocza o zmiennej długości

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007007059A DE102007007059A1 (de) 2007-02-08 2007-02-08 Längenveränderliche Arbeitsplattform
EP08707250A EP2117985A2 (fr) 2007-02-08 2008-01-24 Plateforme de travail à longueur variable

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP08707250.0 Division 2008-01-24

Publications (3)

Publication Number Publication Date
EP2287106A2 EP2287106A2 (fr) 2011-02-23
EP2287106A3 EP2287106A3 (fr) 2012-01-25
EP2287106B1 true EP2287106B1 (fr) 2013-08-07

Family

ID=39493935

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10190962.0A Active EP2287106B1 (fr) 2007-02-08 2008-01-24 Plate-forme de travail de longueur réglable
EP08707250A Withdrawn EP2117985A2 (fr) 2007-02-08 2008-01-24 Plateforme de travail à longueur variable

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08707250A Withdrawn EP2117985A2 (fr) 2007-02-08 2008-01-24 Plateforme de travail à longueur variable

Country Status (6)

Country Link
EP (2) EP2287106B1 (fr)
CN (1) CN101663227A (fr)
DE (1) DE102007007059A1 (fr)
ES (1) ES2428395T3 (fr)
PL (1) PL2287106T3 (fr)
WO (1) WO2008095612A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012012934A1 (de) * 2012-06-29 2014-01-02 Christoph Mohr Scherenhubtisch und Verfahren zum Zusammenbau eines Scherenhubtisches
CN105152104B (zh) * 2015-09-08 2017-05-03 中国十七冶集团有限公司 一种升降式可收缩的吊栏架
CN105298106B (zh) * 2015-11-26 2017-04-26 重庆钢星建筑工程有限公司 可调节式活动翻板
CN109954788A (zh) * 2019-03-27 2019-07-02 东莞三思得仓储设备有限公司 一种用于爬架的脚手板及其成型工艺

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1375962A (en) * 1971-10-26 1974-12-04 Reed H T Extensible working platform
DE7804014U1 (de) * 1978-02-11 1978-06-08 Kuemmerlin, Walter, 7120 Bietigheim- Bissingen Laufsteg
DE9411518U1 (de) * 1994-07-15 1994-09-22 Lissmac Maschb & Diamantwerkz Hubarbeitsbühne
DE9415276U1 (de) * 1994-09-21 1995-01-19 Mbv Maschinenbau Und Vertriebs Arbeitsbühne mit klappbaren Arbeitsflächen
DE20005934U1 (de) * 2000-03-31 2000-08-17 Schoch Rolf Arbeitsplattform für Hebebühnen und Gerüste
GB2406354B (en) * 2003-08-08 2006-09-27 Karl Dorn Adjustable length plank assembly

Also Published As

Publication number Publication date
CN101663227A (zh) 2010-03-03
DE102007007059A1 (de) 2008-08-21
EP2117985A2 (fr) 2009-11-18
PL2287106T3 (pl) 2014-01-31
EP2287106A3 (fr) 2012-01-25
WO2008095612A2 (fr) 2008-08-14
WO2008095612A3 (fr) 2008-12-18
ES2428395T3 (es) 2013-11-07
WO2008095612A4 (fr) 2009-02-19
EP2287106A2 (fr) 2011-02-23

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