EP0727559B1 - Cadre mobile et échelle pour échafaudage respectivement pour plate-forme de travail - Google Patents

Cadre mobile et échelle pour échafaudage respectivement pour plate-forme de travail Download PDF

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Publication number
EP0727559B1
EP0727559B1 EP96101988A EP96101988A EP0727559B1 EP 0727559 B1 EP0727559 B1 EP 0727559B1 EP 96101988 A EP96101988 A EP 96101988A EP 96101988 A EP96101988 A EP 96101988A EP 0727559 B1 EP0727559 B1 EP 0727559B1
Authority
EP
European Patent Office
Prior art keywords
stand according
frame
rotatable
main frame
locking element
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
EP96101988A
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German (de)
English (en)
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EP0727559A1 (fr
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.)
FAMI Deutschland Handelsgesellschaft mbH
Original Assignee
FAMI Deutschland Handelsgesellschaft mbH
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 FAMI Deutschland Handelsgesellschaft mbH filed Critical FAMI Deutschland Handelsgesellschaft mbH
Publication of EP0727559A1 publication Critical patent/EP0727559A1/fr
Application granted granted Critical
Publication of EP0727559B1 publication Critical patent/EP0727559B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E06C1/38—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
    • 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
    • E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
    • 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
    • E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
    • E04G2001/242—Scaffolds movable on wheels or tracks

Definitions

  • the invention relates to a movable frame with a Number of rollers with which the frame can be moved freely is, one or more feet, opposite the roles can be raised and lowered, so that in the lowered state the frame stands securely on the floor Frame also has one or more steps, of which at least one is movably mounted to over load an operating mechanism to lower the feet.
  • a scaffolding or Podium leader is a scaffolding or Podium leader.
  • Scaffolding or platform ladders that have such a frame include, which can be moved on wheels on the one hand and that rests on feet when in use are in different designs known.
  • platform ladders with a frame the rollers are attached, provided between the Rollers and the frame springs are installed, so that at Load the ladder the springs are compressed and the ladder on the corresponding feet on the floor sits on.
  • the springs press the entire ladder and the rack up, making the Ladder on the rollers freely movable in all directions is.
  • the problem with this type of platform ladder is that the ladder is not stable if the load is too low on the feet is guaranteed. Furthermore, at for example remaining heavy tool boxes on the May not lead them into a movable position is pushed up by the appropriate springs.
  • a platform ladder is known, spread over one Lifting device of a manually operated lever rolls can be lifted in relation to the feet of the ladder or can be lowered so that the ladder can be moved on the rollers is.
  • By moving the lever in the opposite direction Lowered feet opposite the rollers so that the Ladder resting on the feet.
  • a bottom step is steeply up is folded up so that an ascent is only possible when standing safely the leader is done.
  • this type of ladder exists the problem that even when the lever is not operated possibly a second step and thus on the ladder can be climbed, which is a security hazard represents because the ladder continues on the roles slidably rests.
  • US-A-2 708 652 is a movable frame or one Head known that has a number of roles with which the frame or the ladder can be moved freely. Of there are also two front feet opposite the roles assigned to this can be raised and lowered. In lowered state rests that known from this document Frame on the two front feet. Furthermore points the well-known ladder up several levels, one of which level is movably mounted. When the movable stage is loaded the feet are actuated lowered. Finally, a lifting element is in the form of a Pedals known that the feet from the floor when loaded takes off, which simultaneously moves the movable step into the original position is returned.
  • US-A-3 155 190 discloses a movable frame, which has a movable step.
  • a Bracket provided with the lifting and lowering feet from Floor can be lifted off.
  • US-A-3,291,254 is a movable one Frame shown in the front casters via a movable Level opposite arranged in the area of these roles The feet can be raised or lowered.
  • the technical problem underlying the invention exists in creating a frame that is already climbing the frame an even better stability guaranteed.
  • the invention is based on the idea that through The ladder automatically ascends the frame or the ladder from the traversing position to the safe standing position on the Feet is brought.
  • a rotatable or slidable step ensures that by ascending to this level through the Actuation mechanism the level from a first to one second position is rotated or shifted, whereby via an actuating mechanism or the feet be lowered and thus the frame securely on the Feet rests.
  • the lifting element Stepping load achieved that the feet from the floor lift off, simultaneously using the actuating mechanism the rotatable step is turned back to the first position becomes. This ensures that the rotatable step in movable condition of the frame always in a slightly rotated Location comes to rest.
  • the invention automatically secure stability is achieved on the feet on the base frame pivotally arranged support frame with the or the roles are already over when climbing the frame the actuating mechanism relieves the rollers quickly and thus the frame slides from the start prevented.
  • the lowest stage is advantageous rotatably mounted since a user normally climbs of the rack enters the lowest level. It is to increase For security reasons, however, several of the lower ones are possible Steps to be rotatably supported and coupled so that even when using the second or even the third stage each automatically lowering the actuating mechanism of the frame on the feet.
  • Points is stored on a base frame of the frame and the feet are arranged on this base frame is in constructively simple manner when using secure frame or a safe scaffolding or platform ladder created.
  • Base frame By pivoting the support frame by means of swivel arms Base frame is arranged is a very simple and inexpensive construction created.
  • the swivel arms are advantageously on the base frame and on Support frame rotatably mounted.
  • the pivot points are on Support frame offset to the pivot points on the base frame arranged. This is due to the weight of the Head achieved that by light actuation or by light load on the rotatable step, causing a stop is rotated, the frame on the feet to stand is coming. There are only very small forces to twist the rotatable stage necessary, i.e. only the trigger forces for pivoting the actuating mechanism.
  • the actuating mechanism Locking element comprises, which is rotatably mounted on the base frame and with one end on the lower side of the rotatable stage slidably and with its other end by a spring attached to the support frame against the Inside of the rotating stage is pressed. So that becomes a very simple and at the same time only very low power required triggering with rotation of the rotatable stage created.
  • the locking element has a shoulder on a appropriate fitting on the support frame when the The feet are raised is only a very small one Angle between the first and second position of the rotatable stage necessary to trigger a locking element, so that the safe standing position is taken.
  • Pedal lever consists of a U-shaped tube, which with its Legs are welded to the associated swivel arms.
  • a scaffolding or platform ladder with an inventive Frame, as described above, has a very large Safety when using.
  • the first Embodiment corresponds essentially to that in the 4 to 7 shown second embodiment. Only the locking elements with the rotatable stage 4 and Support frame 7 are connected, and the kick bar differ from that in the first embodiment second embodiment. Because of this, regarding of the other elements on the description of the second Reference embodiment.
  • the first embodiment it is a plate-like one Locking element 9 rotatably attached to the base frame 6. With at one end, the locking element 9 is sliding on the Bottom of the rotatable stage 4. The other end of the Locking element 9 is by a spring 12 which on Support frame 7 is attached, held such that the Locking element 9 constantly against the underside of the rotatable Level 4 presses. As shown in Fig. 1, an am Support frame 7 fixed stop 8 arranged. In this illustration, the feet 2 are lifted off Condition shown. When feet 2 are off the floor the locking element 9 with a locking surface on Locking stop 8 on. The locking element 9 is thereby the spring 12 held in this position.
  • FIG. 2 The front view shown in FIG. 2 is good too recognize that the pedal lever 10 is essentially on the extends the entire width of the frame and from a U-shaped Pipe exists in this embodiment the opposite front swivel arms 5 on his Legs are welded.
  • the rotatable bearings of the swivel arms 5 very well recognizable. That is, the rotatable bearings on the base frame 6 and Support frame 7.
  • the podium leader has four Feet 2 on one at the four corners Square steel pipes welded to the existing base frame 6 are.
  • On the base frame 6 is a pedestal 21 with several Levels 22 firmly attached.
  • a railing 23 also extends below the base frame 6 a support frame 7 can be pivoted by means of swivel arms 5 appropriate.
  • the support frame 7 consists of Square tubes, which in plan view essentially one form a rectangular frame. Rollers 3 are on the support frame 7 attached freely rotatable.
  • the swivel arms 5 consist of elongated plates on either side of the tubes of the Base frame 6 as well as the base frame 7 at pivot points are stored.
  • the support frame 7 On the support frame 7 is in the vicinity of the lowest level Bearing bracket 18 welded to the rotatable locking element 19 is attached.
  • the locking element 19 with his one end rotatably attached to the bracket 18.
  • the other The end of the locking element 19 is sliding on the underside the lowest level 4, which rotates on one end Base frame 6 is arranged.
  • Kickbar 17 On the front view the front of the support frame 7 extends Kickbar 17, which in turn is rotatably attached to the support frame 7 is.
  • the kick bar 17 is bent essentially in a U-shape, with its two legs in the direction of the base frame 6 are bent and their free ends with rollers 20 are provided on the underside of the base frame 6 unroll.
  • the platform ladder 1 is freely movable in all directions.
  • a bearing block 18 is on Base frame 6 attached, at the lower end Locking element 19 is rotatably attached.
  • the locking element 19 has a first locking surface 22 and a second locking surface 23, which are formed by folds.
  • In off-the-shelf Position of the feet 2 is the front cross tube of the Support frame 7 on the first locking surface 22 of the Locking element 19 on.
  • This is a spring 12 Locking element 19 against the underside of the rotatable stage 4 pressed. In this position, level 4 is a small one Angle of about 2 to 5 ° twisted upwards.
  • a step bracket 17 is rotatably attached to the support frame 7 and has casters 20 on its opposite Legs that roll on the base frame 6.
  • the kick bar 17 occupies a lower position here.
  • the locking element 19 is down pushed away, whereby the cross tube of the support frame 7 from releases the first latching surface and into the second latching surface 23, that is above is pressed.
  • This in turn will achieved that already by the slightly pivoted storage of the support frame 7 compared to the base frame 6 Weight of the ladder the support frame 7 automatically pivots when the locking element 19 is released. Thereby the feet 2 come to a standstill on the floor.
  • This Position is shown in Fig. 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Movable Scaffolding (AREA)
  • Tents Or Canopies (AREA)

Claims (22)

  1. Bâti mobile comportant :
    une pluralité de roulettes (3) à l'aide desquels le bâti est déplaçable librement,
    un ou plusieurs pieds support (2), pouvant être levés ou abaissés par rapport aux roulettes (3), de manière que, à l'état abaissé, le bâti repose de façon sûre sur le sol,
    un ou plusieurs étagements (4), au moins un étagement (4) étant monté de façon à être déplaçable, peut prendre une première et une deuxième position et, en cas de sollicitation, peut être placé de la première à la deuxième position, faisant que le ou les pieds support (2) sont abaissés, par un mécanisme d'actionnement (9, 19),
    un élément de soulèvement (10), qui, en cas de sollicitation lève du sol les pieds support (2), faisant que, simultanément par l'intermédiaire du mécanisme d'actionnement (9, 19), l'étagement mobile (4) est replacé à la première position, et
    un cadre support (7), disposé de façon pivotante, avec les roulettes (3), sur le cadre de base.
  2. Bâti selon la revendication 1, caractérisé en ce qu'en cas de plusieurs étagements, l'étagement (4) situé le plus bas est monté de façon à être déplaçable.
  3. Bâti selon la revendication 1 ou 2, caractérisé en ce que l'étagement (4) est susceptible de tourner et est monté, sur deux points opposés, sur un cadre de base (6) du bâti et les pieds support (2) étant disposés sur ce cadre de base (6).
  4. Bâti selon la revendication 1, caractérisé en ce que le cadre support (7) est disposé sur le cadre de base (6)de façon pivotante, au moyen de bras pivotants (5).
  5. Bâti selon la revendication 4, caractérisé en ce que les bras pivotants (5) sont montés de façon à pouvoir tourner sur le cadre de base (6) et le cadre support (7) et les points de rotation situés sur le cadre support (7) étant décalés par rapport au point de rotation situés sur le cadre de base (6).
  6. Bâti selon la revendication 1, caractérisé en ce que le mécanisme d'actionnement comprend un élément de blocage (9), qui est monté de façon à pouvoir tournern sur le cadre de base (6) et appuie en glissant, par une de ses extrémités, sur la face inférieure de l'étagement (4) susceptible de tourner et est pressé par son autre extrémité au moyen d'un ressort (12), monté sur le cadre support (7), contre la face intérieure de l'étagement (4) susceptible de tourner.
  7. Bâti selon la revendication 6, caractérisé en ce que l'élément de blocage (9) présente un décrochement, appuyant sur une pièce d'appendice (8) correspondante située sur le cadre support (7) lorsque les pieds support (2) sont levés.
  8. Bâti selon la revendication 1, caractérisé en ce que l'élément de soulèvement est constitué d'un levier à pédale (10) qui est relié aux bras pivotants (5) disposé à proximité de l'étagement (4) pouvant tourner et fait saillie par rapport à l'étagement (4) pouvant tourner lorsqu'on observe en vue de dessus.
  9. Bâti selon la revendication 8, caractérisé en ce que le levier à pédale (10) est constitué d'un tube en forme de U soudé par ses branches aux bras pivotants (5) afférents.
  10. Bâti selon la revendication 1, caractérisé en ce que la première position de l'étagement (4) susceptible de tourner est définie par le fait qu'un plan, parallèle à la surface de pose de l'étagement, est tourné d'un angle prédétermién par rapport à un plan horizontal.
  11. Bâti selon la revendication 1, caractérisé en ce que la deuxième position de l'étagement (4) susceptible de tourner est défini par le fait qu'un plan, parallèle à la surface de pose de l'étagement pouvant tourner, est orienté horizontalement.
  12. Bâti selon la revendication 1, caractérisé en ce que, lorsque l'étagement (4) susceptible de tourner prend la première position, l'élément de soulèvment (10) prend une position inférieure et, dans le cas où l'étagement susceptible de tourner prend la deuxième position, l'élément de soulèvement (10) prend une position supérieure.
  13. Bâti selon l'une des revendications précédentes, caractérisé en ce que l'angle entre la première et la deuxième position de l'étagement (4) susceptible de tourner est compris dans la plage allant de 1° à 20°.
  14. Bâti selon la revendication 1, caractérisé en ce que l'angle fait entre la première et la deuxième position de l'étagement (4) susceptible de tourner est compris dans la plage allant de 1° à 5°.
  15. Bâti selon l'une des revendications précédentes, caractérisé en ce que, dans la première position de l'étagement (4) susceptible de tourner, les bras pivotants (5) sont inclinés par rapport à la verticale, d'un angle compris dans la plage allant de 5 à 20 degrès.
  16. Bâti selon la revendication 1 ou 6, caractérisé en ce que le mécanisme d'actionnement est disposé au centre de l'étagement (4) susceptible de tourner.
  17. Bâti selon la revendication 1, caractérisé en ce qu'un étrier à pédale (17) est monté de façon à pouvoir tourner sur le cadre support (7) et glisse à l'aide de galets de glissement sur la face inférieure du cadre de base (6).
  18. Bâti selon la revendication 17, caractérisé en ce que l'étrier à pédale (17) est constitué d'un tube en forme de U, dont les extrémités sont pliés vers le haut et qui glisse sur le cadre de base (6).
  19. Bâti selon la revendication 1 ou 3, caractérisé en ce qu'un bloc palier (18) est fixé au cadre de base (6) et un élément de blocage (19), monté de façon à pouvoir tourner sur celui-ci, est maintenu de façon pressée au moyen d'un ressort (12) contre l'étagement (4) susceptible de tourner, l'élément de blocage (19) étant constitué d'une tôle plusieurs fois pliée, appuyant avec glissement, par son extrémité supérieure, contre la face inférieure de l'étagement (4) susceptible de tourner.
  20. Bâti selon la revendication 19, caractérisé en ce que, dans la première position de l'étagement (4) susceptible de tourner, le cadre support (7) appuie sur une surface d'appui inférieure de l'élément de blocage (19) et, dans la deuxième position, est situé dans une deuxième surface d'appui, disposée au-dessus, de l'éléemnt de blocage (19).
  21. Bâti selon la revendicaton 1 ou 2, caractérisé en ce que l'étagement (4) susceptible de se déplacer est déplaçable d'une première position à une deuxième position.
  22. Echelle pour échauffadage et/ou plate-forme de travail, comportant une pluralité d'étagements disposés les uns au-dessus des autres, et une plate-forme supérieure, comprenant un bâti déplaçable, selon l'une des revendications 1 à 21.
EP96101988A 1995-02-15 1996-02-12 Cadre mobile et échelle pour échafaudage respectivement pour plate-forme de travail Expired - Lifetime EP0727559B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19505066 1995-02-15
DE19505066A DE19505066C1 (de) 1995-02-15 1995-02-15 Verfahrbares Gestell, insbesondere Gerüst- bzw. Podestleiter

Publications (2)

Publication Number Publication Date
EP0727559A1 EP0727559A1 (fr) 1996-08-21
EP0727559B1 true EP0727559B1 (fr) 1999-07-14

Family

ID=7754038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96101988A Expired - Lifetime EP0727559B1 (fr) 1995-02-15 1996-02-12 Cadre mobile et échelle pour échafaudage respectivement pour plate-forme de travail

Country Status (3)

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EP (1) EP0727559B1 (fr)
AT (1) ATE182198T1 (fr)
DE (2) DE19505066C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
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CN103967405A (zh) * 2014-04-24 2014-08-06 上海东富龙拓溥科技有限公司 一种移动扶梯移动支撑机构
CN105201395A (zh) * 2015-10-19 2015-12-30 苏州天沃科技股份有限公司 便于固定定位的移动登高梯

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AUPN627995A0 (en) * 1995-10-31 1995-11-23 Custom Ladder Company Pty Ltd Ladder
FR2791085B1 (fr) * 1999-03-18 2001-06-08 Triax Perfectionnements apportes a un dispositif d'acces a une citerne
DE10326514A1 (de) * 2003-06-10 2005-01-05 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Runstrickmaschine mit einer Arbeitsplattform und Bausatz zu deren Herstellung
FR3001757B1 (fr) * 2013-02-04 2015-12-18 Fimm Escabeau roulant securise comportant une structure reposant sur un chariot equipe de roulettes
CN105339569B (zh) * 2013-05-02 2017-06-23 正八技术有限公司 平台单元、脚手架结构及相关方法
UY4591U (es) * 2015-06-10 2016-12-30 Grupo Bimbo Sab De Cv Escalera móvil
CN107313712B (zh) * 2016-08-30 2019-06-04 湖南省第八工程有限公司 一种改良结构的梯子
CN107060633A (zh) * 2017-05-08 2017-08-18 浙江众磊园林工程有限公司 园林用自动化修剪梯
CN108756715B (zh) * 2018-06-04 2019-11-29 林梅仙 一种非标自动化用人字梯
CN108868578B (zh) * 2018-06-24 2020-04-14 周子行 遥控行进式人字梯及其自动行进方法
CN111894440A (zh) * 2020-08-03 2020-11-06 武汉亿维登科技发展有限公司 一种便于移动搬运的电力检修支架

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US2899010A (en) * 1957-10-28 1959-08-11 Rol Away Truck Mfg Company Inc Transfer truck
US3155190A (en) * 1963-05-28 1964-11-03 Patent Scaffolding Co Inc Wheel mounted ladder
US3175641A (en) * 1963-06-19 1965-03-30 Harsco Corp Mobile ladders
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FR2171571A5 (fr) * 1972-02-07 1973-09-21 Hervieu Et Cie
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103967405A (zh) * 2014-04-24 2014-08-06 上海东富龙拓溥科技有限公司 一种移动扶梯移动支撑机构
CN103967405B (zh) * 2014-04-24 2015-09-30 上海东富龙拓溥科技有限公司 一种移动扶梯移动支撑机构
CN105201395A (zh) * 2015-10-19 2015-12-30 苏州天沃科技股份有限公司 便于固定定位的移动登高梯

Also Published As

Publication number Publication date
ATE182198T1 (de) 1999-07-15
DE59602412D1 (de) 1999-08-19
DE19505066C1 (de) 1996-08-22
EP0727559A1 (fr) 1996-08-21

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