EP3415707B1 - Zusammenklappbare arbeitsplattform mit geringem platzbedarf und mit sicherheitsgeländer - Google Patents

Zusammenklappbare arbeitsplattform mit geringem platzbedarf und mit sicherheitsgeländer Download PDF

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Publication number
EP3415707B1
EP3415707B1 EP18174210.7A EP18174210A EP3415707B1 EP 3415707 B1 EP3415707 B1 EP 3415707B1 EP 18174210 A EP18174210 A EP 18174210A EP 3415707 B1 EP3415707 B1 EP 3415707B1
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EP
European Patent Office
Prior art keywords
uprights
fact
legs
working platform
climbing surface
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
EP18174210.7A
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English (en)
French (fr)
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EP3415707A1 (de
Inventor
Yves Bugy
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.)
Aud Innov SAS
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Aud Innov SAS
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.)
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Priority to PL18174210T priority Critical patent/PL3415707T3/pl
Publication of EP3415707A1 publication Critical patent/EP3415707A1/de
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Publication of EP3415707B1 publication Critical patent/EP3415707B1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/14—Ladders capable of standing by themselves
    • E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
    • E06C1/20—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
    • E06C1/22—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/39—Ladders having platforms; Ladders changeable into platforms
    • E06C1/393—Ladders having platforms foldable with the ladder
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/397—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders characterised by having wheels, rollers, or runners
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/18—Devices for preventing persons from falling
    • E06C7/181—Additional gripping devices, e.g. handrails
    • E06C7/182—Additional gripping devices, e.g. handrails situated at the top of the ladder
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/18—Devices for preventing persons from falling
    • E06C7/181—Additional gripping devices, e.g. handrails
    • E06C7/183—Additional gripping devices, e.g. handrails situated along the ladder

Definitions

  • the present invention relates to the technical field of climbing equipment with folding worktop and railing, and more particularly relates to a secure work platform and reduced size.
  • Such a work platform generally designed to perform work at heights of between 2.5 and 4 meters.
  • a recurring problem of this type of platform is that it is, in the folded position, too bulky in length, and is therefore difficult to transport in a compact commercial vehicle.
  • each of the amounts of the climb plan is composed of a top and a lower part connected to each other by a hinge with lockable positions to arrange and lock the lower part in the extension of the upper part, or to fold against it by imprisoning the legs of support retracted, while each of the telescopic support legs is composed of an articulated upper portion on the upright and a lower portion slidably mounted on the outside of the upper one.
  • this lower leg carries a complex articulation on which are articulated, on the one hand, the end of the corresponding fixed tie rod and, on the other hand, the end of the corresponding spacer arm, so that the legs extend when the worktop is brought into use position.
  • the working platform has in the folded state a reduced length, between 1.4 and 1.6 meters, for easy storage in a van or a particular car.
  • each control rod of the guardrail is independent of the work plane and its lower end is articulated against the inner face of the corresponding amount.
  • each of the rods carries hinge bearings of a gate extending transversely towards the gate of the other rod.
  • the work plan is independent of the railing and is insensitive to the efforts received by the latter and, in particular, the exceptional efforts resulting from excessive support of the user on the crossbar or the associated gates at the railing.
  • the force is transmitted to the gates, it is transmitted by connecting rods directly to the uprights, therefore without increasing its value, as is the case in the work platforms with gates articulated on the connecting rods. a parallelogram for example.
  • the profiles of the uprights do not need to be thickened to withstand the effort.
  • One of the aims of the invention is therefore to provide a foldable work platform with safety railings whose length and folded position can be reduced for transport and storage, without changes in its structure impair the automation of its deployment and its folding, resistance or stability in the deployed state.
  • Another object of the invention is to provide such a work platform whose deployment kinematics is simple, safe and fast.
  • the railing is articulated with respect to two parallel secondary uprights, which are pivotally mounted about an axis of articulation relative to the uprights of the mounting plane to tilt from an extended position in the extension of said amounts to a folded position against the plane of climb, the guardrail and the control rods being, in the folded position, folded against the secondary uprights.
  • control rods are, on the one hand, pivotally mounted relative to the uprights of the plane of rise around a hinge axis common with that of the secondary uprights and, on the other hand, articulated on mounted collars. sliding on the railing.
  • the invention provides a working platform of reduced size in that the structure carrying the railing, namely the secondary uprights, and the control rods can be tilted and folded against the plane of rise along the same axis hinge.
  • This axis is common also reduces the size of the working platform in the folded storage position.
  • each control rod comprises two rotational bearings spaced apart and receiving the branches of a U-shaped gate.
  • the two support legs or the amounts of the plane of rise are joined, at the vertices, by a lower sub-smooth disposed parallel to the guardrail in the safety position.
  • the two support legs and the lower sub-smooth are made in one piece. This characteristic is advantageous in that it makes it possible to reduce the space requirement to a greater extent.
  • each support leg comprises a telescopic end portion slidably mounted on the end of the support leg and having a longitudinal slot provided with positioning notches and support able to cooperate with at least one finger projecting from the support leg.
  • the working platform advantageously comprises a second climbing plane also composed of parallel uprights joined by crosspieces, and slidably mounted on the first rise plane.
  • the ends of the support legs are inclined to move away from each other. In this way, the longer the legs are extended, the longer the wheelbase and stability.
  • each amount of the climbing plane comprises a wing fixed on an outer face and at the level of the summit of said upright and overflowing from the plane of rise, each wing comprises an opening opening adapted to receive in engagement a locking and return finger disposed on each outer face of the secondary uprights for locking in the deployed position in the extension of said uprights.
  • each amount of the climb plan, or the secondary climb plan comprises at a lower end, a set of three wheels mounted pivoting about a transverse axis.
  • the invention relates to a working platform (1) secured with worktop (2) and railing (3) foldable, whose size is reduced to facilitate its transport, especially in a compact commercial vehicle.
  • the working platform (1) comprises a rise plane (4), composed of two parallel uprights (4a) joined by crosspieces (4b) forming steps, and an upper bar (4c) ) for the articulation of a worktop (2).
  • the working platform (1) comprises two telescopic support legs (5) joined transversely by a bar (5a) for supporting the work plane (2) in the extended position of the working platform (1) such that it will be described below.
  • Each leg (5) is hinged to the top of one of the uprights (4a) to occupy a storage position ( Figures 10 and 11 ) against the uprights (4a), or a stabilizing position ( Figures 1 to 8 ) away from the amounts (4a).
  • the ends of the legs (5) of support are inclined to move away from each other to optimize the stability of the work platform (1).
  • the legs (5) of support are joined at their summit by a lower sub-smooth (6) disposed parallel to the guardrail (3) in the safety position.
  • the lower sub-smooth (6) is fixed directly to the uprights (4a) of the rise plane (4) and in the extension thereof.
  • the fact that the lower sub-smooth (6) is fixed directly on the legs (5) support and in the extension thereof reduces the length of the working platform (1) in folded position. Indeed, the tilting of the legs (5) of support against the plane of rise (4) allows to incline the lower sub-smooth (6) downwards and to reduce the length of the work platform (1).
  • the two support legs (5) and the lower sub-smooth (6) are made in one piece, for example by means of a curved tubular profile.
  • the bent tubular section is welded at its lower end to a U-shaped bow (7) whose branches form the legs of the legs (5) support.
  • the legs of the supporting legs (5) comprise each a telescopic end portion (8) slidably mounted on the end of the support leg (5).
  • the telescopic parts (8) each have a longitudinal slot provided with positioning and support notches adapted to cooperate with at least one finger protruding from the support leg.
  • the telescopic portion (8) and the support leg (5) are connected by elastic means which tend to bring them back to the retracted position, as soon as the finger is released from the locking catch which previously held it.
  • This unlocking operation requires a manual action on the telescopic part (8) combining a rotation and an elongation so that the protruding finger comes out of the notch and is found in the longitudinal lumen. This combination of movements guarantees the absence of inadvertent unlocking.
  • the working platform (1) comprises a second plane of rise (9) composed of parallel uprights (9a) joined by sleepers (9b), and slidably mounted on the first rise plane (4) to form an enhancement.
  • This type of second rise plan (9) is well known from the state of the art and will not be described in detail.
  • the work surface (2) of the work platform (1) is articulated between the two uprights (4a) of the rise plane (4) and the two legs (5) of support. More specifically, the work surface (2) is pivotally mounted on the transverse bar (4c) of the plane of rise (4) to switch between a folded position folded against the plane of rise (4) and a horizontal position of use in support locked on the bar (5a) joining the legs (5) support, or two projecting fingers of each leg (5) support.
  • the work surface (2) is connected to the legs (5) support by two lateral arms (2a) pivoting.
  • the working platform (1) comprises a U-shaped foldable railing (3) whose lateral branches (3a) are articulated at the transverse bar (3b) by axes and at the vertices of two secondary uprights. (10) parallel.
  • the two secondary uprights (10) are pivotally mounted about an articulation axis (11) relative to the uprights (4a) of the climbing plane (4) to switch from an extended position in the extension of said uprights (4a) to a folded position against the rise (4).
  • Two control rods (12) make it possible to deploy the railing (3) in a safety position, cf. figure 3 .
  • the control rods (12) are, on the one hand, pivotally mounted relative to the uprights (4a) of the rise plane (4) around a joint axis (11) common with that of the secondary uprights (10). and, on the other hand, hinged on collars (13) slidably mounted on the guardrail (3).
  • the guardrail (3) and the connecting rods control (12) are folded against the secondary uprights (10), which are folded against the plane of rise (4).
  • each upright (4a) of the rise plane (4) comprises at the level of an upper part, two plates (14) fixed on either side of the upright (4a) and in overflow in the opposite direction to the legs (5) support. These plates (14) receive between them the lower end of one of the control rods (12) articulated along the axis of articulation (11). Two arms (15) are also articulated around the same axis of articulation (11) and are fixedly connected to either side of one of the secondary uprights (10). In this way, the secondary uprights (10) and the control rods (12) both pivot relative to the uprights (4a) of the rise plane (4) and around the same hinge axis (11).
  • each upright (4a) of the rise plane (4) comprises a wing (16) fixed on an outer face and at the top of said upright (4a) .
  • Each wing (16) protrudes from the plane of rise (4), and comprises a through hole (16a) adapted to receive in engagement a finger (16b) locking and return disposed on each outer face of the secondary uprights (10) for their locking in the extended position in the extension of said uprights (4a).
  • Each control rod (12) is independent of the work plane (2) and carries two bearings (12a) spaced apart and serving for the articulation of the two arms (15) of a door (17) in the shape of a U.
  • La width of each gate (17) is equal to half the interval between the connecting rods (12) and is smaller than the length of the branches (3a) of the guardrail (3) so as to be able to fall back below they without difficulties.
  • each of the branches (3a) of the guardrail (3) is provided, near its free end, with a well known means, manually unlockable, ensuring the automatic locking of the collar (13). ) slidably articulated to the rod (12) when the collar (13) reaches its working position.
  • each upright (4a, 9a) of the rise plane (4), or the secondary rise plane (9) comprises at a lower end, at least one wheel, and preferably a set (19) of three wheels (18) pivoted about a transverse axis to allow the crossing of steps.
  • the wheel or wheels (18) protrude in the direction opposite to the support legs (5) so that they allow the work platform (1) to stand upright when folded, and do not increase the the size of the working platform (1) in the folded storage position.
  • the user can then come on the work surface (2) by pushing the doors (17) forward. These return to the closed position as soon as it is completely installed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Ladders (AREA)

Claims (9)

  1. Sicherheitsarbeitsbühne (1), umfassend :
    - zwei parallele Holme (4a), die durch Querträger (4b) verbunden sind, um einen Aufstieg (4) zu definieren;
    - zwei Stützbeine (5), die jeweils oben an einem der Holme (4a) artikuliert angeordnet sind, um eine Lagerposition gegen die Holme (4a) oder eine stabilisierte Position einzunehmen, in der die Holme (4a) im Abstand zueinander stehen;
    - eine artikulierte Arbeitsfläche (2), die zwischen den beiden Holmen (4a) und den beiden Stützbeinen (5) zwischen einer horizontalen Betriebsstellung, wenn sich die Stützbeine (5) in einer stabilisierten Position befinden, und einer heruntergeklappten Position gegen den Aufstieg (4), wenn sich die Stützbeine (5) in einer Lagerposition befinden, klappbar ist;
    - ein Sicherheitsgeländer (3), das an der Spitze des Aufstiegs (4) angeordnet ist und unter der Wirkung von Steuerstangen (12) eine mit dem Aufstieg (4) ausgerichtete eingeklappte Position oder eine horizontale Sicherheitsposition einnehmen kann;
    dadurch gekennzeichnet, dass das Geländer (3) in Bezug auf zwei parallele Sekundärholme (10) schwenkbar ist, die schwenkbar um eine Gelenkachse (11) in Bezug auf die Holme (4a) des Aufstiegs (4) angeordnet sind, um aus einer ausgefahrenen Position in der Verlängerung der besagten Holme (4a) in eine eingeklappte Position gegen den Aufstieg (4) zu kippen, wobei das Geländer (3) und die Steuerstangen (12) in der eingeklappten Position gegen die Sekundärholm (10) geklappt sind, und dass die Steuerstangen (12) einerseits in Bezug auf die Holme (4a) des Aufstiegs (4) um eine, mit der Gelenkachse der Sekundärholme (10) gemeinsame Gelenkachse (11) schwenkbar und andererseits schwenkbar um Schellen (13), die verschiebbar auf dem Geländer (3) montiert sind.
  2. Arbeitsbühne (1) nach Anspruch 1, dadurch gekennzeichnet, dass jede Steuerstange (12) zwei beabstandete Drehlager (12a) umfasst, die die Schenkel eines U-förmigen Tores (17) aufnehmen.
  3. Arbeitsbühne (1) nach Anspruch 1, dadurch gekennzeichnet, dass die beiden Stützbeine (5) oder Holme (4a) des Aufstiegs (4) am oberen Ende durch ein unteres Bordbrett (6) verbunden sind, das in der Sicherheitsstellung parallel zum Geländer (3) angeordnet ist.
  4. Arbeitsbühne (1) nach Anspruch 3, dadurch gekennzeichnet, dass die beiden Stützbeine (5) und das untere Bordbrett (6) aus einem Stück gefertigt sind.
  5. Arbeitsbühne (1) nach Anspruch 1, dadurch gekennzeichnet, dass jedes Stützbein (5) einen teleskopischen Endabschnitt (8) umfasst, der verschiebbar am Ende des Stützbeins (5) montiert ist und ein Längslumen aufweist, das mit Positionierungs- und Stützkerben versehen ist, die mit mindestens einem aus dem Stützbein (5) herausragenden Finger zusammenwirken können.
  6. Arbeitsbühne (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Enden der Stützbeine (5) geneigt sind, sich voneinander wegzubewegen.
  7. Arbeitsbühne (1) nach Anspruch 1, dadurch gekennzeichnet, dass jeder Holm (4a) des Aufstiegs (4) einen Flügel (16) umfasst, der an einer Außenfläche und an der Oberseite des Holms (4a) befestigt ist und in Bezug auf den Aufstieg (4) übersteht, wobei jeder Flügel (16) eine Öffnung (16a) umfasst, die geeignet ist, einen Verriegelungs- und Rückholfinger (16b) aufzunehmen, der an jeder Außenfläche der Sekundärholme (10) für deren Verriegelung in der ausgefahrenen Position in der Verlängerung der besagten Holme (4a) angeordnet ist.
  8. Arbeitsbühne (1) nach Anspruch 1, dadurch gekennzeichnet, dass sie einen zweiten Aufstieg (9) umfasst, der ebenfalls aus parallelen Holmen (9a) besteht, die durch Querträger (9b) verbunden und auf dem ersten Aufstieg (4) gleitend montiert sind.
  9. Arbeitsbühne (1) nach einem der Ansprüche 1 oder 8, dadurch gekennzeichnet, dass jeder Holm (4a, 9a) des Aufstiegs (4) oder des sekundären Aufstiegs (9) an einem unteren Ende eine Anordnung (19) von drei um eine Querachse schwenkbaren Rädern (18) umfasst.
EP18174210.7A 2017-06-16 2018-05-25 Zusammenklappbare arbeitsplattform mit geringem platzbedarf und mit sicherheitsgeländer Active EP3415707B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18174210T PL3415707T3 (pl) 2017-06-16 2018-05-25 Kompaktowa składana platforma robocza z poręczą bezpieczeństwa

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1755467A FR3067742B1 (fr) 2017-06-16 2017-06-16 Plateforme de travail repliable d'encombrement reduit avec garde-corps de securite

Publications (2)

Publication Number Publication Date
EP3415707A1 EP3415707A1 (de) 2018-12-19
EP3415707B1 true EP3415707B1 (de) 2019-07-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18174210.7A Active EP3415707B1 (de) 2017-06-16 2018-05-25 Zusammenklappbare arbeitsplattform mit geringem platzbedarf und mit sicherheitsgeländer

Country Status (6)

Country Link
EP (1) EP3415707B1 (de)
DK (1) DK3415707T3 (de)
ES (1) ES2736531T3 (de)
FR (1) FR3067742B1 (de)
PL (1) PL3415707T3 (de)
PT (1) PT3415707T (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210003203U (zh) * 2019-01-25 2020-01-31 江苏宙际杰智能科技股份有限公司 用于梯子的伸缩定位结构
FR3111940B1 (fr) 2020-06-29 2022-06-24 Cdh Group Battant de portillon pour plateforme de travail en hauteur et plateforme de travail comprenant un tel battant de portillon
FR3112570B1 (fr) 2020-07-15 2022-09-09 Cdh Group Dispositif de travail en hauteur a garde-corps articule et portillon automatique
FR3113695B1 (fr) 2020-08-27 2022-10-07 Cdh Group Dispositif de travail en hauteur a garde-corps articule et moyen de maintien en position repliee
CN113605181B (zh) * 2021-08-10 2023-05-23 中交二公局第六工程有限公司 土路肩摊铺机及其施工方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2978486B1 (fr) * 2011-07-29 2013-08-23 Alstep Dispositif d'acces en hauteur
US9663989B2 (en) * 2012-01-23 2017-05-30 Wing Enterprises, Inc. Elevated working platform and related methods
FR3027942B1 (fr) * 2014-10-31 2016-11-18 Audinnov Equipement d'ascension avec plateforme et garde corps repliables

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
EP3415707A1 (de) 2018-12-19
DK3415707T3 (da) 2019-08-12
PT3415707T (pt) 2019-07-17
FR3067742A1 (fr) 2018-12-21
PL3415707T3 (pl) 2019-10-31
FR3067742B1 (fr) 2019-07-05
ES2736531T3 (es) 2020-01-02

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