EP0187976B1 - Dispositif de verrouillage pour éléments télescopiques de monte-charge - Google Patents

Dispositif de verrouillage pour éléments télescopiques de monte-charge Download PDF

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Publication number
EP0187976B1
EP0187976B1 EP85116068A EP85116068A EP0187976B1 EP 0187976 B1 EP0187976 B1 EP 0187976B1 EP 85116068 A EP85116068 A EP 85116068A EP 85116068 A EP85116068 A EP 85116068A EP 0187976 B1 EP0187976 B1 EP 0187976B1
Authority
EP
European Patent Office
Prior art keywords
locking
rope
telescope
locking device
unlocking
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
EP85116068A
Other languages
German (de)
English (en)
Other versions
EP0187976A2 (fr
EP0187976A3 (en
Inventor
Albert Böcker
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.)
Albert Boecker GmbH and Co KG
Original Assignee
Albert Boecker 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
Priority claimed from DE3500841A external-priority patent/DE3500841C1/de
Application filed by Albert Boecker GmbH and Co KG filed Critical Albert Boecker GmbH and Co KG
Priority to AT85116068T priority Critical patent/ATE70026T1/de
Publication of EP0187976A2 publication Critical patent/EP0187976A2/fr
Publication of EP0187976A3 publication Critical patent/EP0187976A3/de
Application granted granted Critical
Publication of EP0187976B1 publication Critical patent/EP0187976B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C5/00—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles
    • E06C5/02—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C5/00—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles
    • E06C5/02—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members
    • E06C5/04—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic
    • E06C5/06—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic by piston and cylinder, or equivalent means, operated by a pressure medium
    • E06C5/12—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic by piston and cylinder, or equivalent means, operated by a pressure medium derived directly from a pump or compressor

Definitions

  • the invention relates to a locking device for the positively guided telescopic sections of an elevator, wherein each telescopic section is designed as a ladder and can be locked with the next telescopic section in several extended positions against retraction, and at the end of all telescopic sections with the exception of a telescopic section for locking, operated from the level of a telescopic section serve in the plane of the next telescopic section spring-loaded pivoting locking cams, on which support members of the next telescopic section are supported, using traction cables which operate locking cables connected to movably mounted intermediate members.
  • Such a device is known for a freight elevator (DE-PS 30 01 410), the elevator being a rail for Has leadership of a freight elevator container.
  • a locking device can be actuated via a corresponding pull rope, with the aid of which all telescopic sections are locked together.
  • the "insertion" of the locking is done via a manually operated pull rope; after the lock has been released by the same pull rope, the locking device remains spring-loaded in the unlocked position.
  • Swivel bodies are used to transfer the cable pull from one telescopic section to the other, which allow only a slight "shortening" of the respective cable.
  • a sliding ladder which consists of a lower ladder and an upper ladder and the displacement of the two ladder parts to one another is also rope-operated, but is done by hand.
  • a pivotable drop lever is mounted on the resting sub-conductor, which is designed with two arms for the purpose of supporting the upper conductor and with the support surface of one arm under a spar of the sub-conductor and the support surface of the other arm under the holds the respective spar of the top ladder.
  • the drop lever can deflect against the force of a spring.
  • the pull rope For the purpose of unlocking, the pull rope must be moved to a position to the side of the lower conductor.
  • the invention is based on the std. T. after the locking device according to DE-PS 30 01 410. It is based on the task of making the locking device even simpler and more reliable.
  • the cable guide required to operate the locking device should be designed so that a reliable response of the unlocking cable and thus the unlocking device is guaranteed. At the same time, it should be achieved that as little force as possible is required to actuate the locking device.
  • the different lengths of the traction rope on the one hand and the locking rope on the other hand and the resulting different rope elongation under tension should be compensated for by a "translation" between the two ropes.
  • the invention achieves the stated object in a locking device of the type mentioned at the outset by the teaching of claim 1.
  • the movable roller is directly or indirectly via the locking or unlocking rope connected to the locking elements between the individual telescopic sections (locking cams, pawls), while the pull rope is guided in a pulley-like manner around a fixed roller and a movable roller.
  • the traction rope itself first experiences a "translation" with regard to its movement, ie the traction rope, which is on the one hand longer and possibly guided over more deflection points, experiences a greater change in length than the locking or unlocking rope. This results in a further translation between the pull rope and the locking or unlocking rope.
  • pawls When using pawls, these are each located on the (relatively) extending telescopic section and run over the (relatively) stationary telescopic section in such a way that their supporting surface is supported from above on the rung of the (relatively) stationary telescopic section.
  • the locking takes place automatically in a manner known per se; unlocking, however, through the special design of the movably mounted intermediate links as a pulley block in connection with the connection of the unlocking rope to this pulley block.
  • Such a device has proven itself not only in inclined lifts, but in particular also in scaffold lifts.
  • the design of the intermediate links as a pulley block ensures that the change in rope length is reliably transmitted to the subsequent telescopic sections with little effort.
  • the movable roller of the pulley block can act directly or indirectly on the locking or unlocking rope, locking cams arranged in the upper region of the telescopic sections or pawls arranged in the lower region of the telescopic sections can be used.
  • the locking cams can be arranged on a control cam which deflects into the unlocking position against spring force or can pivot out under spring force in the unlocking position.
  • the pawls on the other hand, preferably spring-loaded into the locking position and are brought into the unlocking position by means of the pull rope.
  • the movable role of this pulley can be changed in position by a pull rope, so that an unlocking is effected.
  • the pull rope thus acts directly on the unlocking rope via the movable roller.
  • the cable guide is made such that the train exerted on the traction cable is transmitted to the same extent as a result of the translation to the following traction cables.
  • the translation is particularly advantageous here because the rope lengths and the "slack" of the individual deflection points add up to a certain extent and can be adequately compensated for by the translation.
  • the pawls with relatively short deflector surfaces can overflow the rungs of the adjacent telescopic section and automatically fall into the locking position after the rungs have overrun.
  • the stops according to claim 5 limit both the falling in the locking direction and the pivoting movement in the unlocking direction by the unlocking cable.
  • Claim 6 includes the additional use of the bearing pin of the pawl as a bearing for the locking spring for automatically pivoting the pawl into the locking position; the spring is designed so that the force of the locking spring is overcome with a corresponding train in the unlocking rope and the locking device can be operated in the sense of "unlocking".
  • Claims 9 and 10 relate to the arrangement of the unlocking rope in connection with a tension spring switched into the unlocking rope, which serves to compensate the rope tension.
  • the claims 11 and 12 are directed to the formation of the pawl. It is generally sufficient if the locking device has only one pawl, so that the locking device engages after a rung has passed. However, in order to be able to immediately lock effectively when traveling only smaller extension paths, the invention further proposes that the pawl has a plurality of locking cams which are mounted in rocker arms on the rail of the telescopic section. The pawl is thus sawtooth-like, with the locking system effectively engaging each time a sawtooth is passed over
  • the invention is not limited to use with freight elevators designed as inclined elevators, but instead aims in particular at the use of scaffolding lifts, in which the telescopic section that extends in each case extends together with all subsequent telescopic sections as a “package”, ie without a simultaneous relative movement of the following sections among themselves.
  • the locking device designated 34 is in each case Area of the lower end 37 ', 37'',37''' and 37 '''' of the telescopic sections IV, III, II and I arranged. From Fig. 6 it can be seen that the last (lowest) telescopic section has been assigned the reference number V, the following telescopic sections the designations IV, III, II and I in sequence.
  • a further traction rope 53 ' which is led with one end in the manner described above to the upper end 38' of the telescopic section and with its other end to the lower end 37 'of the telescopic section IV, where it runs over a tensioning device 56 (see also FIG. 1) is fixed.
  • the cable guide can be seen in an enlarged view from FIG. 1.
  • the upper end 38 'of the telescopic section IV is shown in the image plane at the top.
  • the pulling rope 53 'coming from the previous telescopic section V rotates around the deflection roller 55, which is arranged on a cross belt 59 of the telescopic section IV so that it can rotate, but does not vary in distance.
  • the rope is guided to the movable roller 50.
  • the unlocking cable 46 is connected, which - which cannot be seen in FIG. 5 - leads to the lower end of the telescopic section IV and is attached to the axis 39 there by the spring 47.
  • the fixed roller 51 arranged on a rung 60 of the telescopic section IV forms, together with the movable roller 50, a pulley 52. Both rollers are wrapped in a rope 53 ′′, which ends with its upward end (see also FIG. 6) The upper end 38 ′′ of the telescopic section III and with its downward end to the lower end 37 ′′ of the telescopic section III, as shown in the image plane of FIG. 1 below. From Fig. 1 it can also be seen that the unlocking rope 46 'acts on the axis 39 via a spring 47. The axis 39 connects the two pawls 35, which are displaced on short bearing pins 43 fastened to the rails 42.
  • the journals 43 are located below the lowest cross belt 44 of the telescopic section.
  • a locking spring arranged on an extension of the bearing pin 43 45 is supported on the one hand on the cross belt 44 and on the other hand on locking cams 62 designed as pawls 35, the pawl in the locking position. Stops 40 arranged on the pawls, which lie against the rails 42, prevent the pawls from swinging too far due to the force of the spring 45.
  • the pawl has a sliding surface 61, with which it can slide along the rungs 60 of the adjacent shot against the action of the spring 45 when the neighboring telescopic shot is passed over it. From Fig. 4 it can also be seen that an additional stop 41 is provided which is intended to prevent the pawls from swinging too far when the unlocking rope 46 'is actuated.
  • a modified embodiment of the pawl is designated by 36.
  • a sawtooth-shaped pawl which has a plurality of locking cams 48, is mounted in rocker arms 49 in such a way that the entire pawl can move out of the plane of the adjacent telescopic shot when the telescopic shot is extended.
  • the pawl After driving over a rung, the pawl can engage in the locking sense in the manner described above.
  • a pawl of this type is preferably installed in the space between the lowermost cross belt 44 and the next rung. It has the advantage that the locking device engages each time a small extension path is covered.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Ladders (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Types And Forms Of Lifts (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Lock And Its Accessories (AREA)
  • Vehicle Body Suspensions (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Claims (13)

  1. Dispositif de verrouillage (34) pour les tronçons télescopiques (I à V), soumis à un guidage forcés les uns sur les autres, d'un élévateur, chaque tronçon télescopique (I à V) étant réalisé sous forme d'une échelle et verrouillable au tronçon télescopique suivant contre toute rétraction éventuelle, en plusieurs positions de déploiement, des ergots de verrouillage (48,62) placés à l'extrémité de tous les tronçons télescopiques (I à IV), à l'exception d'un tronçon télescopique (V), servant à assurer le verrouillage, étant susceptibles de pivoter en allant du plan d'un tronçon télescopique dans le plan du tronçon télescopique suivant, des organes d'appui du tronçon télescopique suivant prenant appui sur les ergots de verrouillage (48,62), en utilisant des câbles de traction (53 à 53''''), qui actionnent des câbles de déverrouillage, ou de verrouillage (46 à 46''') raccordés aux organes intermédiaires (poulies 50,55) montés déplaçables, caractérisé par les propriétés suivantes :
    a) les organes intermédiaires montés déplaçables sont formés par une poulie fixe (55) et une poulie mobile (50), dont l'espacement par rapport à la poulie fixe (55) et modifiable en direction longitudinale des tronçons télescopiques (V à II)
    b) les câbles de traction (53' à 53''') des tronçons télescopiques (V à II) sont fixés, à une extrémité, à l'extrémité inférieure d'un tronçon télescopique (par exemple III) et élingués à l'autre extrémité, sur la poulie mobile (50) située sur l'extrémité supérieure du tronçon télescopique (par exemple III), en enlaçant l'organe intermédiaire d'un tronçon télescopique précédent (par exemple IV),
    c) les câbles de déverrouillage et de verrouillage (46 à 46'') sont chaque fois passés en allant de la poulie mobile (50) aux ergots de verrouillage (48,62).
  2. Dispositif de verrouillage selon la revendication 1, caractérisé en ce que le câble de déverrouillage (16 à 16''') qui agit à une extrémité sur l'axe (39) qui porte les cliquets de blocage (35,36) agit à l'autre extrémité sur la poulie mobile(50) d'un palan (52), formé d'une poulie mobile et d'une poulie fixe (51), disposé dans la zone de l'extrémité supérieure (38 à 38''') des tronçons télescopiques (II à V), dont la position de la poulie mobile est modifiable dans le sens d'un déverrouillage, grâce au câble de traction (53 à 53''').
  3. Dispositif de verrouillage selon la revendication 1 ou 2, caractérisé en ce que la poulie mobile (50) et la poulie fixe (51) associées à un tronçon télescopique (par exemple IV) servent conjointement au guidage d'un câble de traction (par exemple 53''') associé au tronçon télescopique suivant (par exemple III), de telle façon que l'extrémité du câble qui entoure la poulie fixe (inférieure) est associée à l'extrémité supérieure (38'') du tronçon télescopique suivant (III) et l'extrémité du câble qui enlace la poulie mobile (supérieure) est associée à l'extrémité inférieure (37'') du tronçon télescopique suivant.
  4. Dispositif de verrouillage selon l'une des revendications 1 à 3, caractérisé en ce que les cliquets de blocage (35,36) d'un tronçon télescopique (I à IV) sont reliés entre eux par l'intermédiaire d'un axe rigide (39).
  5. Dispositif de verrouillage selon l'une des revendications 1 à 4, caractérisé en ce que les cliquets de blocage (35,36) sont pourvus de butées (40,41) pour limiter le pivotement.
  6. Dispositif de verrouillage selon l'une des revendications 1 à 5, caractérisé en ce que les cliquets de blocage (35) sont montés tournants sur des tourillons de palier (43) disposés sur les glissières (42) du tronçon télescopique (I à IV).
  7. Dispositif de verrouillage selon l'une des revendications 1 à 6, caractérisé en ce qu'au moins l'un des tourillons de palier (43) sert au déplacement d'un ressort (ressort de verrouillage (45)) agissant d'un côté sur la ceinture transversale (44) du tronçon télescopique (I à IV) et de l'autre côté sur le cliquet de blocage (35,36).
  8. Dispositif de verrouillage selon l'une des revendications 1 à 7, caractérisé en ce qu'un câble provoquant le déverrouillage (câble de déverrouillage (46 à 46''') agit sur l'axe (39) reliant les deux cliquets (35,36).
  9. Dispositif de verrouillage selon la revendication 8, caractérisé en ce qu'un ressort de traction (47) est disposé entre l'axe (39) et le câble de déverrouillage (46 à 46''').
  10. Dispositif de verrouillage selon l'une des revendications 1 à 9, caractérisé en ce qu'un cliquet de blocage (35,36) comporte plusieurs ergots de verrouillage (48).
  11. Dispositif de verrouillage selon la revendication 10, caractérisé en ce que le cliquet de blocage (36), qui comporte plusieurs ergots de verrouillage (48), est monté dans des leviers oscillants (49), sur la glissière (42) du tronçon télescopique (I à IV).
  12. Dispositif de verrouillage selon la revendication 1, caractérisé par l'utilisation dans un élévateur à échafaudage, dont chaque fois le tronçon télescopique en train de se déployer le fait conjointement avec tous les tronçons télescopiques qui suivent, sans mouvement relatif par rapport à ceux-ci.
  13. Dispositif de verrouillage selon la revendication 1, caractérisé par l'utilisation dans un élévateur de charges réalisé sous forme d'un élévateur incliné, dont chaque fois le tronçon télescopique en train de se déployer le fait conjointement avec tous les tronçons télescopiques qui suivent, avec un mouvement relatif constant de plusieurs tronçons télescopiques entre eux.
EP85116068A 1985-01-12 1985-12-17 Dispositif de verrouillage pour éléments télescopiques de monte-charge Expired - Lifetime EP0187976B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85116068T ATE70026T1 (de) 1985-01-12 1985-12-17 Verriegelungsvorrichtung fuer die aneinander zwangsgefuehrten teleskopschuesse eines aufzuges.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3500841 1985-01-12
DE3500841A DE3500841C1 (de) 1984-12-12 1985-01-12 Verriegelungsvorrichtung fuer die aneinander zwangsgefuehrten Teleskopschuesse eines Aufzuges

Publications (3)

Publication Number Publication Date
EP0187976A2 EP0187976A2 (fr) 1986-07-23
EP0187976A3 EP0187976A3 (en) 1988-08-03
EP0187976B1 true EP0187976B1 (fr) 1991-12-04

Family

ID=6259680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85116068A Expired - Lifetime EP0187976B1 (fr) 1985-01-12 1985-12-17 Dispositif de verrouillage pour éléments télescopiques de monte-charge

Country Status (6)

Country Link
EP (1) EP0187976B1 (fr)
JP (1) JPS62116486A (fr)
AT (1) ATE70026T1 (fr)
DE (1) DE3584834D1 (fr)
ES (1) ES8704137A1 (fr)
SU (1) SU1586508A3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3923466A1 (de) * 1989-07-15 1991-01-24 Boecker Albert Gmbh & Co Kg Vorrichtung zur verriegelung der teleskopschuesse eines schraegaufzuges
GB2262931A (en) * 1992-01-02 1993-07-07 John Arthur Roake Extendable tower.
JP3013080U (ja) * 1994-12-27 1995-06-27 英夫 逸見 梯子体
ES2402030T3 (es) * 2010-04-12 2013-04-26 Iveco Magirus Ag Dispositivo de seguridad frente a caídas para un conjunto de escalera telescópica

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3001410C2 (de) * 1980-01-16 1984-11-15 Albert Böcker GmbH & Co KG, 4712 Werne Lastaufzug mit Teleskopschiene
DE3149639A1 (de) * 1981-12-15 1983-07-21 Maschinenfabrik Hermann Paus GmbH, 4448 Emsbüren Schraegaufzug zum foerdern von lasten
DE3329210C2 (de) * 1983-08-10 1986-12-18 August Wilhelm Andernach KG, 5300 Bonn Knickleiter

Also Published As

Publication number Publication date
SU1586508A3 (ru) 1990-08-15
ES550790A0 (es) 1987-03-16
ATE70026T1 (de) 1991-12-15
ES8704137A1 (es) 1987-03-16
DE3584834D1 (de) 1992-01-16
EP0187976A2 (fr) 1986-07-23
EP0187976A3 (en) 1988-08-03
JPS62116486A (ja) 1987-05-28

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