EP0941957B1 - Dispositif de verrouillage pour les éléments d'échelle d'un ascenseur de construction ou similaire - Google Patents

Dispositif de verrouillage pour les éléments d'échelle d'un ascenseur de construction ou similaire Download PDF

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Publication number
EP0941957B1
EP0941957B1 EP99104613A EP99104613A EP0941957B1 EP 0941957 B1 EP0941957 B1 EP 0941957B1 EP 99104613 A EP99104613 A EP 99104613A EP 99104613 A EP99104613 A EP 99104613A EP 0941957 B1 EP0941957 B1 EP 0941957B1
Authority
EP
European Patent Office
Prior art keywords
locking
pivoting lever
ladder
profile
cross
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
EP99104613A
Other languages
German (de)
English (en)
Other versions
EP0941957A2 (fr
EP0941957A3 (fr
Inventor
Thomas Schlund
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.)
GEDA Dechentreiter GmbH and Co KG
Original Assignee
GEDA Dechentreiter 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 GEDA Dechentreiter GmbH and Co KG filed Critical GEDA Dechentreiter GmbH and Co KG
Publication of EP0941957A2 publication Critical patent/EP0941957A2/fr
Publication of EP0941957A3 publication Critical patent/EP0941957A3/fr
Application granted granted Critical
Publication of EP0941957B1 publication Critical patent/EP0941957B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/06—Securing devices or hooks for parts of extensible ladders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/26—Positively-acting devices, e.g. latches, knives

Definitions

  • the invention relates to a locking device comprising pluggable conductor elements of a construction elevator or the like. According to the preamble of claim 1.
  • GB 1 398 269 discloses a scaffold element for a construction hoist, two scaffold element arrangements arranged side by side and parallel to one another, each with a plurality of scaffold elements plugged onto one another, forming a tower for the construction hoist.
  • the plug-in mechanism for plugging together two scaffolding elements comprises a bushing which engages in two adjacent pipe sections of plugged scaffolding elements and is fixed in the respective pipe sections of the scaffolding elements by means of pins.
  • the invention is therefore based on the object of creating a lock which eliminates the disadvantages mentioned above and by means of which it is possible to assemble and disassemble the individual conductor elements simply, quickly and safely.
  • the solution according to the invention has the essential advantage that, without additional parts which would have to be installed after the conductor elements have been plugged together, a lock between the plugged-together conductor elements can be produced in a simple, quick and safe manner and without great assembly effort.
  • the dismantling of the conductor elements is also easily and quickly possible since it is only necessary to remove the two locking means of the locking device, i.e. thus the preferably provided locking rods to be released by means of a single actuating handle.
  • a particularly simple and quick locking of the assembled conductor elements is achieved when the locking elements are arranged essentially horizontally displaceably such that they reach through at least a pair of aligned through holes of a profile element and a plug-in tab.
  • the locking elements expediently comprise at least one locking rod, in particular two locking rods.
  • a secure guidance of the plug-in tabs without tilting when inserting an upper conductor element into a conductor element arranged underneath is achieved in that in the upper region of the profile elements of a conductor element, in which the respective plug-in tabs of an attached conductor element engage, a separating element over a predetermined length of the respective profile element in this way is arranged that an inserted tab between the separating element and a wall of the respective profile element comes to rest.
  • a good storage and guidance of the locking elements is ensured if the separating element has a through hole aligned with the through hole of the respective profile element, in which the respective locking element is mounted and guided.
  • the configuration according to the invention offers a particularly stable and functionally reliable construction if the locking device has a transverse web which extends between two profile elements and is fastened on both sides to the profile elements and / or to the separating elements arranged in the profile elements.
  • a particularly simple locking mechanism that can be actuated with a handle is available in that a pivoting lever is pivotably pivoted about a pivoting point on the crossbar, and in that two locking rods or bolts are preferably pivotally eccentrically opposed to the center of gravity of the pivoting lever on both sides.
  • a simple pivoting movement of the pivoting lever leads to an essentially horizontal translational movement of the locking rods, which then reach through the through holes of the profile elements and plug-in tabs.
  • load lifting means such as, for example, which can be moved up and down along the ladder of the construction hoist or the like.
  • a conveyor cage, a transport platform or the like a limit switch is arranged such that it triggers a stop contact when passing the pivoting lever when the pivoting lever is in the unlocked position, but does not trigger any contact when the pivoting lever is in the locked position.
  • a mechanically particularly simple and reliable safety monitoring is achieved if at least one contact surface is designed and arranged on the swivel lever in such a way that the limit switch contacts it when the swivel lever is in a position in which it is fully or partially unlocked.
  • crossbar is U-shaped at its upper end and the pivot lever is articulated between the U-legs shaped in this way, a particularly stable and functionally reliable construction results.
  • a slot-shaped recess is formed in an L-leg of the crosspiece, through which the pivot lever engages.
  • a clear positioning for unlocking and locking and at the same time a functionally reliable fixation of the pivot lever in these pivot positions, so that undesired automatic locking or unlocking is avoided, is achieved by providing a locking means which is displaceable in the direction of its longitudinal axis and which is both in the Locking position and in the unlocking position of the pivot lever engages in a correspondingly arranged latching recess in the slot-shaped recess.
  • the locking means is preferably brought into engagement by gravity and is supported by spring force.
  • a spring is provided which applies force to the latching means in the latching direction.
  • the locking device can be configured to be manually or motor-operated.
  • each conductor element 10, 12 of the ladder of a construction elevator or the like is to be connected to one another by plugging them together.
  • Each conductor element 10, 12 comprises two lateral profile elements 14, which are connected by cross struts 16 and run parallel to one another.
  • plug tabs 18 are attached to the lower end of each profile element such that they engage in corresponding recesses 20 at the upper ends of the profile elements 14 of the lower conductor element 12 when the upper conductor element 10 is plugged onto the lower conductor element 12 becomes.
  • ladder of the construction elevator to be formed can be put together from any number of ladder elements 10, 12, depending on the desired length.
  • FIG. 1 shows only two conductor elements 10, 12.
  • FIGS. 2 and 3 illustrate the assembled state.
  • the plug-in tabs 18 have through bores 24 which, when the conductor elements 10, 12 are plugged together, are aligned with corresponding through bores 26 in the profile elements 14 (FIG. 2).
  • the respective recesses 20 are delimited on the one hand by the profile elements 14 and on the other hand by separating elements 28 arranged in the profile elements 14.
  • the respective plug-in tab 18 comes to lie between a separating element 28 and a wall of the profile element 14. In this way, lateral guidance of the plug-in tabs 18 is ensured.
  • FIG. 1 to 3 also show a transverse web 30 arranged between the profile elements 14 or between the separating elements 28, which is part of a locking device arranged near the ends of each conductor element 10, 12 without plug-in tabs, and there on each side on a separating element 28 or a profile element 14 is attached.
  • a pivot lever 32 is articulated on the crossbar 30 in such a way that it can be pivoted about a pivot point 34.
  • two transverse locking rods 36 are arranged, which are articulated at one end on both sides of the lever pivot point 34 to the pivot lever 32 and with their other ends engage in a through hole 38 of the separating elements 28 or are guided there by means of a guide bush 40.
  • a limit switch 42 is located at a position of this type on a load-carrying device (not shown in detail) which can be moved up and down along the conductors 10, 12 provided that it runs onto run-up surfaces 44, 46 on the pivot lever 32 and thus triggers immediate contact to stop the upwardly moving load-carrying means when the pivot lever 32 is in the position according to FIG. 1 or a similar position, ie, if not or is not completely locked.
  • the limit switch 42 moves past the run-up surfaces 44, 46 without triggering a stop contact when the pivot lever 32 is in the position shown in FIG. 2, that is to say when it is completely locked.
  • the limit switch 42 moves vertically upwards along a line 48 and strikes the run-up surface 44 in the fully unlocked position of the pivot lever 32 (FIG. 5) or the run-up surface 46 in the partially unlocked position of the pivot lever 32.
  • the limit switch 42 moves past the pivot lever 32 without triggering a stop contact when the pivot lever 32 is in the fully locked position according to FIG. 6.
  • FIG. 4 shows the locking device with cross bar 30 and swivel lever 32.
  • the cross bar 30 is U-shaped in cross section at its upper end 50, the swivel lever 32 being articulated between the two U legs 52 of the cross bar 30.
  • the locking bars 36 extend in Fig. 4 perpendicular to the plane of the drawing.
  • the crossbar 30 is L-shaped.
  • a slot-shaped recess 58 is formed in the L-leg 56 thus provided, in which the pivot lever 32 is guided.
  • a latching means 60 which is displaceable in its longitudinal direction is arranged on the pivot lever 32.
  • This has a locking lug 62 which, in the locking position or unlocking position of the pivot lever 32, engages in a respective locking recess 64 in the slot-like recess 58 (FIGS. 5 and 6).
  • the pivot lever 32 is both in its unlocked position (FIGS. 1 and 5) and in its locked position (Fig. 2 and 6) fixed, so that accidental, unwanted locking or unlocking is safely avoided.
  • the training is such that a self-locking is present in intermediate positions of the pivot lever 32.
  • a spring 68 is supported on the pivot lever 32 at a point 66, which exerts a force on the latching means 60 in the latching direction at an opposite end.
  • a grip tab 70 (FIGS. 5 and 6) is arranged in such a way that it can be subjected to pressure when the pivoting lever 32 is gripped manually, for example with the thumb of a hand, so that the latching means 60 can be moved against spring force and thus is unlocked. Then the pivot lever 32 can then be pivoted into the desired position. In the corresponding unlocking position (FIG. 5) or locking position (FIG. 6), the grip tab 70 is preferably relieved after actuating the pivoting lever 32, so that the latching means 60 engages with its latching lug 62 in a latching recess 64 and the pivoting lever 32 in the respective position fixed.
  • FIG. 7 and 8 illustrate, in an enlarged detail, on the one hand the unlocked position (FIG. 7) and on the other hand the locked position (FIG. 8) of the locking rod 36.
  • the pivot lever 32 In the position shown in FIG. 7, the pivot lever 32 is in the unlocking position (Fig. 1, 5).
  • the locking rod 36 is accordingly withdrawn up to the through bore 38 having the guide bush 40.
  • the arrangement of the locking rod 36 and its eccentric actuation by the pivot lever 32 is made such that in the unlocking position the locking rod 36 is just not pulled out of the guide bush 40 of the through hole 38, but is retracted to the extent that the upper conductor element 10 (Fig. 1) can be easily pulled out of the recess 20 of the lower conductor element 12 with its plug-in tab 18.
  • the load suspension device can now be moved upwards or downwards, such as a conveyor basket, a transport platform or the like.
  • the limit switch 42 described is provided, which triggers a corresponding stop contact if the respective pivot lever 32 is not in the fully locked position (FIGS. 2, 6).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
  • Elevator Door Apparatuses (AREA)

Claims (15)

  1. Éléments d'échelle emboîtables d'un ascenseur de chantier ou similaire comprenant un dispositif de verrouillage, les éléments d'échelle (10, 12) présentant chacun au moins deux éléments profilés (14) s'étendant à distance l'un de l'autre et reliés par au moins une traverse (16), sur l'une des extrémités desquels est prévue une patte de raccord ou d'enfichage respective qui peut être enfichée dans l'autre extrémité de l'élément profilé (14) d'un autre élément d'échelle (12) à accoupler et qui peut y être immobilisé par des moyens de liaison qui s'engagent dans des trous de passage (24, 26) alignés les uns aux autres, des pattes d'enfichage (18) et des éléments profilés (14),
    caractérisés en ce que sur ou à proximité des extrémités exemptes de pattes d'enfichage de chaque élément d'échelle (12) est fixé un dispositif de verrouillage (30, 32, 36) qui présente des moyens de verrouillage (36) déplaçables transversalement à l'axe longitudinal de l'élément d'échelle pour s'engager de manière détachable dans les trous de passage (24, 26) alignés les uns aux autres, des éléments profilés (14) ainsi que des pattes d'enfichage (18) de l'élément d'échelle suivant, qui sont enfichées dans ceux-ci.
  2. Dispositif selon la revendication 1, caractérisé en ce que les moyens de verrouillage (36) peuvent être déplacés par un levier d'actionnement et de pivotement (32) simultanément dans la position de verrouillage ou de déverrouillage.
  3. Dispositif selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que les moyens de verrouillage comprennent au moins une tige de verrouillage (36).
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que dans la région d'extrémité (20) des éléments profilés (14) d'un élément d'échelle (12), dans laquelle s'engagent les pattes d'enfichage (18) d'un élément d'échelle (10) emboîté, un élément de séparation (28) est agencé sur une longueur prédéterminée de l'élément profilé (14) respectif de telle sorte qu'une patte d'enfichage (18) introduite vient se loger entre l'élément de séparation (28) et une paroi de l'élément profilé (14) respectif.
  5. , Dispositif selon la revendication 4, caractérisé en ce que l'élément de séparation (28) présente un perçage traversant (38) en alignement avec le trou de passage (26) de l'élément profilé (14) respectif pour monter et guider un moyen de verrouillage (36).
  6. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il présente une traverse (30) qui s'étend entre deux éléments profilés (14) et qui est fixée à ceux-ci et/ou aux éléments de séparation (28).
  7. Dispositif selon la revendication 6, caractérisé en ce que le levier de pivotement (32) actionnant les deux tiges de verrouillage est articulé sur un point de pivotement (34) de la traverse (30) et en ce que d'autre part, les deux tiges de verrouillage (36) sont articulées sur le levier avec une de leur extrémité respective à un emplacement de chaque côté du point de pivotement (34).
  8. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'un commutateur de fin de course (42) est agencé sur un moyen de réception de charge, tel qu'une cage de convoyage, une plate-forme de transport ou similaire, déplaçable le long de l'échelle de l'ascenseur de chantier ou similaire, de telle sorte qu'en passant devant le levier de pivotement (32), ledit commutateur déclenche un contact d'arrêt lorsque le levier de pivotement (32) se trouve en position déverrouillée, et ne déclenche pas de contact lorsque le levier de pivotement (32) se trouve en position verrouillée.
  9. Dispositif selon la revendication 8, caractérisé en ce qu'au moins une surface d'entrée (44, 46) est réalisée sur le levier de pivotement de telle sorte que le commutateur de fin de course (42) passant devant celle-ci vient s'engager sur celle-ci lorsque le levier de pivotement (32) prend une position dans laquelle il est entièrement ou partiellement. déverrouillé.
  10. Dispositif selon l'une des revendications 6 à 9, caractérisé en ce que la traverse (30) est réalisée avec une section transversale en forme de U à son extrémité supérieure (50) et en ce que le levier de pivotement (32) est articulé entre les deux branches en U (52) de la traverse.
  11. Dispositif selon l'une des revendications 6 à 10, caractérisé en ce que la traverse (30) est réalisée en forme de L à son extrémité inférieure (54) et présente sur une branche (56) en L qui y est formée un évidement (58) en forme de fente à travers lequel s'engage le levier de pivotement (32).
  12. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le levier de pivotement (32) est réalisé de manière à pouvoir s'enclencher dans sa position de verrouillage et/ou dans sa position de déverrouillage.
  13. Dispositif selon la revendication 12, caractérisé en ce qu'il est prévu sur le levier de pivotement (32) un élément d'enclenchement (60, 62) mobile en direction de son axe longitudinal, lequel s'engage, dans la position de verrouillage et/ou de déverrouillage du levier de pivotement (32), dans un évidement d'enclenchement (64) respectif dans l'évidement (58) en forme de fente.
  14. Dispositif selon la revendication 13, caractérisé en ce qu'il est prévu un ressort (68) qui sollicite par une force le moyen d'enclenchement (60, 62) en direction d'enclenchement et assiste ainsi l'enclenchement automatique sous la force de la pesanteur.
  15. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il est réalisé de manière à pouvoir être actionné à la main ou par moteur.
EP99104613A 1998-03-11 1999-03-09 Dispositif de verrouillage pour les éléments d'échelle d'un ascenseur de construction ou similaire Expired - Lifetime EP0941957B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29804327U DE29804327U1 (de) 1998-03-11 1998-03-11 Verriegelungsvorrichtung für die Leiterelemente eines Bauaufzuges o.dgl.
DE29804327U 1998-03-11

Publications (3)

Publication Number Publication Date
EP0941957A2 EP0941957A2 (fr) 1999-09-15
EP0941957A3 EP0941957A3 (fr) 2001-07-11
EP0941957B1 true EP0941957B1 (fr) 2003-09-10

Family

ID=8053965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99104613A Expired - Lifetime EP0941957B1 (fr) 1998-03-11 1999-03-09 Dispositif de verrouillage pour les éléments d'échelle d'un ascenseur de construction ou similaire

Country Status (3)

Country Link
EP (1) EP0941957B1 (fr)
AT (1) ATE249390T1 (fr)
DE (2) DE29804327U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL215088A0 (en) * 2011-09-11 2011-10-31 Gilad Omri Telescopic ladder and locking mechanism thereof

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR756404A (fr) * 1933-06-02 1933-12-09 Grue télescopique
DE1807169U (de) 1959-12-24 1960-03-03 Karl Sprattler Zerlegbare leiter.
GB1398269A (en) * 1971-11-05 1975-06-18 Ace Machinery Ltd Tower panel for a building site hoist
DE2634752C3 (de) 1976-08-02 1979-10-25 Hailo-Werk Rudolf Loh Gmbh & Co Kg, 6342 Haiger Rastgelenk für Mehrzweckleiter
US4086980A (en) 1977-02-11 1978-05-02 Shortes Lois E Dismantling ladder
US4687076A (en) 1986-10-17 1987-08-18 Tu Nan Hsing Segment connector for modular ladder
DE3737295A1 (de) 1987-11-04 1989-05-18 Krause Werk Gmbh & Co Kg Gelenk fuer leitern
DE4113152A1 (de) * 1991-04-23 1992-10-29 Langer Ruth Geb Layher Aufzug fuer baumaterialien, geruestelemente und geruestmontagen
DE9214590U1 (de) 1992-10-28 1992-12-17 Schmitz, Egon, 5060 Bergisch Gladbach Vorrichtung zum Transport von Dachmaterial auf schrägen Dachflächen
US5692855A (en) 1994-06-21 1997-12-02 Farmers' Factory Co. Automatic quick-connect coupler for implements
AT401924B (de) * 1995-03-28 1996-12-27 Ebbs & Radinger Maschhandel Kletteraufzug

Also Published As

Publication number Publication date
EP0941957A2 (fr) 1999-09-15
DE29804327U1 (de) 1998-05-20
DE59906912D1 (de) 2003-10-16
ATE249390T1 (de) 2003-09-15
EP0941957A3 (fr) 2001-07-11

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