EP1512657A1 - Elevator system with drive on the counterweight - Google Patents

Elevator system with drive on the counterweight Download PDF

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Publication number
EP1512657A1
EP1512657A1 EP04077248A EP04077248A EP1512657A1 EP 1512657 A1 EP1512657 A1 EP 1512657A1 EP 04077248 A EP04077248 A EP 04077248A EP 04077248 A EP04077248 A EP 04077248A EP 1512657 A1 EP1512657 A1 EP 1512657A1
Authority
EP
European Patent Office
Prior art keywords
counterweight
cabin
elevator system
sheath
pulley
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.)
Withdrawn
Application number
EP04077248A
Other languages
German (de)
French (fr)
Inventor
Jean-Yves Bluteau
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.)
ThyssenKrupp Elevator Manufacturing France SAS
Original Assignee
ThyssenKrupp Elevator Manufacturing France 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.)
Filing date
Publication date
Priority claimed from FR0310176A external-priority patent/FR2877931A1/en
Application filed by ThyssenKrupp Elevator Manufacturing France SAS filed Critical ThyssenKrupp Elevator Manufacturing France SAS
Publication of EP1512657A1 publication Critical patent/EP1512657A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
    • B66B11/0246—Maintenance features
    • 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
    • B66B9/04—Kinds or types of lifts in, or associated with, buildings or other structures actuated pneumatically or hydraulically

Definitions

  • the present invention relates to an elevator system provided with a unit of motorization on counterweight and planned to facilitate its maintenance.
  • a connecting member 50 such as a cable, a cable ply, or a belt
  • the pulley 41 being mounted on the counterweight 30, it will also be said that the counterweight 30 is bent. It is the same with the pulley 21 and strands 55 and 56.
  • the return pulley 21 being mounted on the cabin 20, it will be said that the cabin 20 is mouflée. In such a system of mittens, the cable length unrolled or wound is double the corresponding displacement of its pulley. So we can note that the cab 20 and the counterweight 30 move of identical lengths and, therefore, at the same speed.
  • the mass of the counterweight 30 In the elevator system shown in FIG. 1, to have an equilibrium, the mass of the counterweight 30 must be substantially equal to the mass of the car 20 plus a predetermined load corresponding to half of the nominal load of the car 20. Moreover, when the car 20 is at the top 10, for example at the last bearing 11 n , the counterweight 30 must be in the bottom of the sheath, as shown in FIG. 1 in the dotted situation. Conversely, when the cabin 20 is at the first bearing 11 1 , the counterweight 30 must be at the head of sheath 11 n , as shown in fine lines.
  • the maintenance or eventual repair of the motorization unit 40 is for example carried out at the bottom of the pit, but at this point the cabin 20 is at the last landing (situation shown in dotted lines). Conversely, they can be made at the head of the duct, where the electrical control cabinets 70 of the elevator system are generally located, in particular the cabinet for supplying the supply current of said system. But at that moment, the cabin is at the first landing (situation represented in fine lines). It is therefore difficult, if not impossible, to carry out the maintenance or the repair of the elevator system of the state of the art by having simultaneous access to the booth 20 and to the drive unit 40 which is mounted on the counterweight and , a fortiori, the or electrical control cabinets 70. Note that the cabin 20 is carrying many devices necessary for its proper operation and require maintenance as the unit of motorization 40, and in association therewith. For example, the cabin can carry the control cabinet of the elevator system.
  • elevator systems in which only one part of the motorisation unit is to be monitored (systematically and relatively common), the other part being mounted in the sheath and not requiring maintenance as frequent as the first part.
  • the unit of motorization is a cylinder and its control unit.
  • organ to watch the part of the motorization unit which is monitor is called organ to watch.
  • the present invention is not limited to an organ monitor who is the motorization unit itself or only a part of the unit of motorization. It includes any type of organ to be monitored which requires a monitoring, and therefore relatively frequent maintenance.
  • the object of the present invention is to solve the problem mentioned above of simultaneous access to a set of organs of the elevator system and therefore proposes an elevator system whose general architecture is such that the organ to be monitored which is mounted on the counterweight, for example the drive unit of the system lift can be subject to maintenance or possible repairs from the cabin while having direct access to command in this one.
  • an elevator system is of the type which comprises a cabin intended to circulate vertically in a duct so as to serve a plurality of bearings, a counterweight connected to said cabin via pulleys and a connecting member, said counterweight carrying a member to be monitored.
  • said link member is arranged so that the displacement of said counterweight in the sheath is lower than that of the cabin and in that the connecting member has a length such as, where the cabin is at a predetermined point of access to inside the sheath, the body to be monitored carried by the counterweight is accessible from the cabin, but also that the cabin and the counterweight can move freely inside the sheath.
  • said access point predetermined is a bearing or a bridge provided between two bearings.
  • the cabinet or cabinets of control and electrical control of said elevator system are accessible from the elevator car when it is at said predetermined location.
  • said cabin has a retractable hatch allowing the access of the organ to be monitored carried by the counterweight from inside said cabin.
  • said body monitor is the motorization unit of the elevator.
  • said link member is then fixed at a point fixed in the upper part of the sheath, passes into the drive pulley of the unit of motorisation, passes back into at least one pulley of solidarity sheath in its upper part and is fixed at a fixed point of the cabin.
  • said motorization unit is a winch and the connecting member passes through a pulley whose clevis is secured to the sheath in its upper part, passes into a pulley whose clevis is attached to the counterweight, passes back into at least one integral pulley of the sheath in its upper part and is fixed at a fixed point of the cabin.
  • the counterweight and the cabin are bent so that the ratio of the displacement of the cabin to the displacement of the counterweight is greater than 1.
  • the system elevator is of the type where the engine unit of said elevator system is a cylinder.
  • said member to be monitored is the control unit of said jack, said control unit being mounted on said counterweight.
  • said jack is then mounted so as to that its barrel has one end that is integral with the counterweight and that the free end its rod 92 is integral with a stop in the lower part of the sheath.
  • the counterweight also carries a crazy pulley, said connecting member being fixed to a fixed point in the upper part of the sheath, passing in the idle pulley carried by said counterweight, passing back into at least a return pulley secured to the sheath in its upper part and being fixed at a point fixed cabin.
  • said counterweight also carries a pulley mad, said connecting member being fixed to a fixed point in the lower part of the sheath, passing through the idler pulley carried by said counterweight and being fixed at a fixed point from the cabin.
  • the elevator system shown in FIG. 2a essentially comprises the same elements as those of the elevator system shown in FIG. 1. These same elements therefore bear the same references.
  • the cabin 20 is connected by a connecting member 50 and via pulleys a counterweight 30, which is equipped with a motorization unit 40 provided to drive the cabin 20.
  • the body to be monitored merges with the motorization unit 40. It will give by the following an example of realization where this is not the case.
  • FIG. 2a One of the essential differences with the elevator system of FIG. 1 lies in the arrangement of the connecting member 50. As can be seen in FIG. 2a, it is fixed at a fixed point 51 of the sheath 10, passes into the drive pulley 41 of the motorization unit 40, passes from new in a return pulley 61, but unlike the system of FIG. 1, is then attached to the cabin 20 at a fixed point 22 thereof.
  • the liaison body 50 has strands 52 and 53 which form, with the drive pulley 41, a hauling.
  • the pulley 41 being mounted on the counterweight 30, it will also be said that the counterweight 30 is bent.
  • the cabin 20 does has no mittens or haul system, so that the movement of the counterweight 30 is lower, in this case by half, than that of the cabin 20.
  • the counterweight 30 would have a displacement k times less than the cabin 20. But, for a balance of masses of one and the other, its mass should be k times greater than the mass of the cabin 20 to which a predetermined mass is added corresponding to half the nominal load of the cab 20.
  • the second means used by the invention is an adjustment of the length of the connecting member 50 so that when the cabin 20 is at a place predetermined access of the sheath 10, the member which is mounted on the counterweight 30 and which is to be monitored, in this case, in the case of FIG. 2, the motorization unit 40, accessible from the cabin 20, in particular, as is the case in FIG. 2, since inside the cabin 20, for example via a retractable access hatch 23.
  • the counterweight 30 is substantially at the same height as the cabin 20.
  • a predetermined access location is defined as an access point determined by the designer of the elevator system, an access location that allows more access to the interior of the sheath 10.
  • system maintenance elevator having access to the motorization unit 40, to the counterweight 30 and to all the devices that are linked to the cabin 20.
  • a retractable access hatch is called a hatch which, in operation normal elevator system (out of maintenance), does not allow and even hides access to the sheath 10 from the cabin 20 and which, during maintenance operations, at the contrary, allows access to the sheath 10 and therefore to the organ to be monitored 40 mounted on the counterweight 30. Any suitable system for such a function is conceivable.
  • mechanical means may be provided to lock the movement of the cab 20 and the counterweight 30 and thus obtain a secure position.
  • the predetermined access location in question is one of the intermediate bearings, in this case the bearing 11 3 .
  • control and control cabinet (s) 70 may be advantageous to mount the control and control cabinet (s) 70 at the predetermined access point (on the bearing 11 3 in the exemplary embodiment of Fig. 4).
  • control and control cabinet can be also be mounted inside cabin 20.
  • Fig. 2b which represents the elevator system of FIG. 2a with the same length of the connecting member 50, that when the cabin 20 is at the bearing 11 1 , the lowest, the counterweight 30 is not at the top of sheath 10.
  • FIG. . 2c when the cab 20 is at bearing 11 5 is the highest, the counterweight 30 is not at the bottom of sheath 10. This is mainly due to the fact that movement of the counterweight 30 is n times lower (here two times lower) that of the cabin 20.
  • the predetermined access point where the member mounted on the counterweight 30 which is to be monitored, in this case, the drive unit 40, is accessible from the cab 20 can not be any. It is indeed necessary that the cab 20 and the counterweight 30 can move freely, that is to say without encountering obstacles, inside the sheath 10. To highlight this aspect, it is shown in Figs. 3a and 3b, two embodiments with the same sheath 10 as previously for which this is not the case. Indeed, in FIG. 3a, the predetermined access location is at the second level 11 2 . It can be seen that if the cabin 20 rises by three levels, the counterweight 30 can not go down one and a half steps. Symmetrically in FIG. 3b, the predetermined access location is at the penultimate step 11 4 . It can be seen that if the car 20 descends by three bearings, the counterweight 30 can not go up one and a half steps.
  • N be the total number of steps to be serviced and r the rank of the landing where the cabin 20 and the counterweight 30 are at the same level, thus allowing access to the body to be monitored mounted on the counterweight to be accessible from the cabin 20.
  • the hauling report is called p.
  • FIG. 4 there is shown another embodiment according to which the predetermined access point is a gateway 12 arranged for the access effect for maintenance in the elevator shaft 10 at a level between two levels, occurrence between level 11 3 and level 11 4 .
  • the electrical control cabinet 70 At the gateway 12 is mounted the electrical control cabinet 70.
  • dashed and in fine lines, are shown the respective positions of the cab 20 and the counterweight 30 when the cabin 20 is respectively at the last and the first bearings.
  • the bridge 12 is provided so that it is possible to access the interior of the cabin 20 and, from this interior, the organ to be monitored 40 mounted on the counterweight 30.
  • FIG. 5 there is shown another embodiment where the motorization unit 40 is in fact a winch also mounted on the counterweight 30 and the pulley 41 is an idler pulley which is therefore not driven by the drive unit 40
  • the connecting member 50 passes into a pulley 80 whose yoke is secured to the sheath 10 in its upper part, then passes into the idler pulley 41, then rejoins the pulley 61 before reaching attach to the cabin 20.
  • three strands 57, 52 and 53 have an end secured to the counterweight 30.
  • the ratio p of the displacement of the cab 20 to the displacement of the counterweight 30 is here 3.
  • the connecting member 50 is fixed on a fixed point 51 in the upper part of the sheath 10, passes in a crazy pulley 100 whose clevis is integral with the counterweight 30, returns to a return pulley 80 whose yoke is secured to the sheath 10 in its upper part, then passes into the drive pulley 41 of the motor unit 40, then rejoins the pulley 61 in which it passes, passes in a crazy pulley 110 whose yoke is secured to the cabin 20, passes into a pulley 120 whose clevis is secured to the sheath 10 in its upper part then is fixed to the cabin 20 at a fixed point 22.
  • FIG. 7 there is shown another embodiment where the drive unit 40 is in fact a cylinder 90 whose barrel 91 has one end which is integral with the counterweight 30 and whose free end of the rod 92 is integral with a stop 12 at the bottom of the sheath 10.
  • the oil supply of the jack 90 is provided by a hydraulic unit 93 which is mounted on the counterweight 30.
  • the connecting member 50 it is fixed to a fixed point 51 in the upper part of the sheath 10 passes into an idler pulley 41 mounted on a yoke 32 integral with the counterweight 30, passes through a pulley 61 in the upper part of the sheath 10 and is fixed on the cabin 20
  • the length of the connecting member 50 is such that when the cabin 20 is at a predetermined access point, here the bearing 11 3 , the body to be monitored of the unit of motorization 40, in this case the control unit 93 of the jack 90, for example Its hydraulic power unit is accessible from the cabin 20, particularly as is the case in the drawing, from the inside of the cabin 20, via a hatch in the bottom thereof.
  • FIG. 8 there is shown another embodiment of the present invention where the drive unit 40 is also a cylinder 90 whose barrel 91 has one end which is integral with the counterweight 30 and whose free end of the rod 92 is integral with a stop 12 of the sheath 10.
  • the control of the cylinder 90 is provided by a control unit 93, for example a hydraulic unit, which is mounted on the counterweight 30.
  • a control unit 93 for example a hydraulic unit, which is mounted on the counterweight 30.
  • the connecting member 50 it is fixed at a fixed point 51 'in the lower part of the sheath 10, passes into an idler pulley 41 mounted on a yoke 32 integral with the counterweight 30, and is fixed to the cabin 20, for example in the part bass of it.
  • the length of the connecting member 50 is such that when the cabin 20 is at a predetermined access point, here the last bearing 11 5 , the body to be monitored of the motorization unit 40, in this case , the hydraulic unit 93, is accessible from the cabin 20, particularly as is the case in the drawing, from inside the cabin 20 via a trap in the bottom thereof.
  • the hauling of the counterweight is always higher than that of the cabin so that it has a length of displacement less than the traveling length of the cabin 20.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

The system has a motorization unit (40) mounted on a counterbalance (30) connected by a connection unit (50) to a cabin (20) moving vertically in an elevator shaft (10) to serve multiple stages (111 to 115). The unit (50) is arranged such that a movement of the counterbalance is less than that of the cabin. The unit (50) has a total length that enables the unit (40) is accessible from the cabin, when the cabin is in one stage.

Description

La présente invention concerne un système d'ascenseur pourvu d'une unité de motorisation sur contrepoids et prévu pour faciliter sa maintenance.The present invention relates to an elevator system provided with a unit of motorization on counterweight and planned to facilitate its maintenance.

On a représenté schématiquement à la Fig. 1, un système d'ascenseur de l'état de la technique dont l'unité de motorisation est montée sur le contrepoids, reprenant ainsi les concepts qui sont exposés dans le document de brevet US-A-3 101 130. Il comprend une gaine 10 dans laquelle peut se déplacer verticalement une cabine d'ascenseur 20 afin de pouvoir desservir des paliers 111 à 11n (ici n = 5). Il comporte encore un contrepoids 30 sur lequel est montée une unité de motorisation 40. Un organe de liaison 50, tel qu'un câble, une nappe de câble, ou encore une courroie, est fixé à un point fixe 51 de la gaine 10, passe dans la poulie d'entraínement 41 de l'unité de motorisation 40 en formant deux brins 52 et 53, passe sur une poulie de renvoi 61 dont la chape est solidaire de la gaine 10 dans sa partie haute, puis passe sur une poulie de renvoi 21 dont la chape est solidaire de la cabine 20 avant d'être de nouveau fixé sur un autre point fixe 54 solidaire de la gaine 10 dans sa partie haute. La poulie de renvoi 21 forme deux brins 55 et 56. Diagrammatically shown in FIG. 1, a lift system of the state of the art with the drive unit mounted on the counterweight, thus incorporating the concepts which are set forth in US-A-3,101,130. 10 in which can move vertically an elevator car 20 to be able to service bearings 11 1 to 11 n (here n = 5). It also comprises a counterweight 30 on which is mounted a motorization unit 40. A connecting member 50, such as a cable, a cable ply, or a belt, is fixed to a fixed point 51 of the sheath 10. passes in the drive pulley 41 of the drive unit 40 by forming two strands 52 and 53, passes on a pulley 61 whose clevis is secured to the sheath 10 in its upper part, then passes on a pulley 21 reference whose clevis is secured to the cabin 20 before being fixed again on another fixed point 54 integral with the sheath 10 in its upper part. The pulley 21 forms two strands 55 and 56.

La poulie d'entraínement 41 et les deux brins 52 et 53 réalisent ensemble ce que l'on appelle dans le domaine de la technique un système de moufles ou mouflage. La poulie d'entraínement 41 étant montée sur le contrepoids 30, on dira aussi que le contrepoids 30 est mouflé. Il en est de même de la poulie de renvoi 21 et des brins 55 et 56. La poulie de renvoi 21 étant montée sur la cabine 20, on dira que la cabine 20 est mouflée. Dans un tel système de moufles, la longueur de câble déroulée ou enroulée est double du déplacement correspondant de sa poulie. On peut donc constater que la cabine 20 et le contrepoids 30 se déplacent de longueurs identiques et, donc, à la même vitesse.The drive pulley 41 and the two strands 52 and 53 together realize what a system of mittens or haulage is known in the art. The pulley 41 being mounted on the counterweight 30, it will also be said that the counterweight 30 is bent. It is the same with the pulley 21 and strands 55 and 56. The return pulley 21 being mounted on the cabin 20, it will be said that the cabin 20 is mouflée. In such a system of mittens, the cable length unrolled or wound is double the corresponding displacement of its pulley. So we can note that the cab 20 and the counterweight 30 move of identical lengths and, therefore, at the same speed.

Il existe également des systèmes de moufles à plusieurs poulies montées sur une même chape et plusieurs poulies de renvoi formant entre elles ce qui est appelé un palan. Dans de tels systèmes de moufles, le rapport longueur déroulée à déplacement est égal au nombre de poulies montées sur la chape.There are also systems of muffles with several pulleys mounted on a same clevis and several pulleys forming between them what is called a hoist. In such systems of mittens, the ratio length unwound to displacement is equal to the number of pulleys mounted on the screed.

Dans le système d'ascenseur montré à la Fig. 1, pour avoir un équilibre, la masse du contrepoids 30 doit être sensiblement égale à la masse de la cabine 20 plus une charge prédéterminée correspondant à la moitié de la charge nominale de la cabine 20. De plus, lorsque la cabine 20 est en tête de gaine 10, par exemple au dernier palier 11n, le contrepoids 30 doit se trouver dans le fond de la gaine, comme cela est représenté à la Fig. 1 dans la situation en pointillés. Réciproquement, lorsque la cabine 20 se trouve au premier palier 111, le contrepoids 30 doit se trouver en tête de gaine 11n, comme cela est représenté en traits fins.In the elevator system shown in FIG. 1, to have an equilibrium, the mass of the counterweight 30 must be substantially equal to the mass of the car 20 plus a predetermined load corresponding to half of the nominal load of the car 20. Moreover, when the car 20 is at the top 10, for example at the last bearing 11 n , the counterweight 30 must be in the bottom of the sheath, as shown in FIG. 1 in the dotted situation. Conversely, when the cabin 20 is at the first bearing 11 1 , the counterweight 30 must be at the head of sheath 11 n , as shown in fine lines.

La maintenance ou l'éventuelle réparation de l'unité de motorisation 40 est par exemple réalisée en fond de fosse, mais à ce moment-là la cabine 20 est au dernier palier (situation représentée en pointillés). Inversement, elles peuvent être réalisées en tête de gaine, là où se trouvent généralement les armoires de commande électrique 70 du système d'ascenseur, notamment l'armoire d'arrivée du courant d'alimentation dudit système. Mais à ce moment-là, la cabine est au premier palier (situation représentée en traits fins). Il est donc difficile, voire impossible de réaliser la maintenance ou la réparation du système d'ascenseur de l'état de la technique en ayant un accès simultané à la cabine 20 et à l'unité de motorisation 40 qui est montée sur le contrepoids et, a fortiori, à la ou les armoires de commande électrique 70. On notera que la cabine 20 est porteuse de nombreux dispositifs nécessaires à son bon fonctionnement et qui demandent à être l'objet d'une maintenance au même titre que l'unité de motorisation 40, et en association avec celle-ci. A titre d'exemple, la cabine peut porter l'armoire de commande du système d'ascenseur.The maintenance or eventual repair of the motorization unit 40 is for example carried out at the bottom of the pit, but at this point the cabin 20 is at the last landing (situation shown in dotted lines). Conversely, they can be made at the head of the duct, where the electrical control cabinets 70 of the elevator system are generally located, in particular the cabinet for supplying the supply current of said system. But at that moment, the cabin is at the first landing (situation represented in fine lines). It is therefore difficult, if not impossible, to carry out the maintenance or the repair of the elevator system of the state of the art by having simultaneous access to the booth 20 and to the drive unit 40 which is mounted on the counterweight and , a fortiori, the or electrical control cabinets 70. Note that the cabin 20 is carrying many devices necessary for its proper operation and require maintenance as the unit of motorization 40, and in association therewith. For example, the cabin can carry the control cabinet of the elevator system.

Pour avoir accès à l'un et à l'autre simultanément, il est nécessaire qu'il soit l'un à côté de l'autre. Cela arrive quand ils se croisent lors de leurs déplacements respectifs, mais là ils ne sont ni l'un ni l'autre facilement accessibles depuis l'extérieur de la gaine 10.To have access to both simultaneously, it is necessary that he be one next to each other. It happens when they meet during their travels but they are neither easily accessible from the outside of the sheath 10.

On connaít également des systèmes d'ascenseur dans lesquels seulement une partie de l'unité de motorisation est à surveiller (de manière systématique et relativement fréquente), l'autre partie étant montée dans la gaine et ne nécessitant pas une maintenance aussi fréquente que la première partie. Par exemple, l'unité de motorisation est un vérin et son unité de commande.Also known are elevator systems in which only one part of the motorisation unit is to be monitored (systematically and relatively common), the other part being mounted in the sheath and not requiring maintenance as frequent as the first part. For example, the unit of motorization is a cylinder and its control unit.

Dans la suite de la description, la partie de l'unité de motorisation qui est à surveiller est appelée organe à surveiller.In the rest of the description, the part of the motorization unit which is monitor is called organ to watch.

On comprendra que la présente invention ne se limite pas à un organe à surveiller qui est l'unité de motorisation elle-même ou seulement une partie de l'unité de motorisation. Elle englobe tout type d'organe à surveiller qui nécessite une surveillance, et donc une maintenance relativement fréquente.It will be understood that the present invention is not limited to an organ monitor who is the motorization unit itself or only a part of the unit of motorization. It includes any type of organ to be monitored which requires a monitoring, and therefore relatively frequent maintenance.

Le but de la présente invention est de résoudre le problème mentionné ci-dessus de l'accès simultané à un ensemble d'organes du système d'ascenseur et propose donc un système d'ascenseur dont l'architecture générale soit telle que l'organe à surveiller qui est monté sur le contrepoids, par exemple l'unité de motorisation du système d'ascenseur puisse faire l'objet d'opérations de maintenance ou d'éventuelles réparations depuis la cabine tout en ayant accès directement aux organes de commande dans celle-ci.The object of the present invention is to solve the problem mentioned above of simultaneous access to a set of organs of the elevator system and therefore proposes an elevator system whose general architecture is such that the organ to be monitored which is mounted on the counterweight, for example the drive unit of the system lift can be subject to maintenance or possible repairs from the cabin while having direct access to command in this one.

Pour ce faire, un système d'ascenseur selon l'invention est du type qui comporte une cabine prévue pour circuler verticalement dans une gaine de manière à desservir une pluralité de paliers, un contrepoids relié à ladite cabine via des poulies et par un organe de liaison, ledit contrepoids portant un organe à surveiller.To do this, an elevator system according to the invention is of the type which comprises a cabin intended to circulate vertically in a duct so as to serve a plurality of bearings, a counterweight connected to said cabin via pulleys and a connecting member, said counterweight carrying a member to be monitored.

Selon une caractéristique de la présente invention, ledit organe de liaison est arrangé de manière à ce que le déplacement dudit contrepoids dans la gaine soit inférieur à celui de la cabine et en ce que l'organe de liaison présente une longueur totale telle que, lorsque la cabine se trouve à un endroit prédéterminé d'accès à l'intérieur de la gaine, l'organe à surveiller porté par le contrepoids soit accessible depuis la cabine, mais telle aussi que la cabine et le contrepoids puissent se déplacer librement à l'intérieur de la gaine.According to a feature of the present invention, said link member is arranged so that the displacement of said counterweight in the sheath is lower than that of the cabin and in that the connecting member has a length such as, where the cabin is at a predetermined point of access to inside the sheath, the body to be monitored carried by the counterweight is accessible from the cabin, but also that the cabin and the counterweight can move freely inside the sheath.

Selon un mode de réalisation de la présente invention, ledit endroit d'accès prédéterminé est un palier ou une passerelle prévu entre deux paliers.According to one embodiment of the present invention, said access point predetermined is a bearing or a bridge provided between two bearings.

Selon une autre caractéristique de la présente invention, la ou les armoires de contrôle et de commande électrique dudit système d'ascenseur sont accessibles depuis la cabine d'ascenseur lorsque celle-ci se trouve audit endroit prédéterminé.According to another characteristic of the present invention, the cabinet or cabinets of control and electrical control of said elevator system are accessible from the elevator car when it is at said predetermined location.

Selon une caractéristique avantageuse de la présente invention, ladite cabine comporte une trappe escamotable permettant l'accès de l'organe à surveiller porté par le contrepoids depuis l'intérieur de ladite cabine.According to an advantageous characteristic of the present invention, said cabin has a retractable hatch allowing the access of the organ to be monitored carried by the counterweight from inside said cabin.

Selon un mode de réalisation avantageux de la présente invention, ledit organe à surveiller est l'unité de motorisation de l'ascenseur.According to an advantageous embodiment of the present invention, said body monitor is the motorization unit of the elevator.

Selon un mode de réalisation, ledit organe de liaison est alors fixé à un point fixe en partie haute de la gaine, passe dans la poulie d'entraínement de l'unité de motorisation, passe de nouveau dans au moins une poulie de renvoi solidaire de la gaine dans sa partie haute et est fixé en un point fixe de la cabine.According to one embodiment, said link member is then fixed at a point fixed in the upper part of the sheath, passes into the drive pulley of the unit of motorisation, passes back into at least one pulley of solidarity sheath in its upper part and is fixed at a fixed point of the cabin.

Selon une variante de réalisation, ladite unité de motorisation est un treuil et l'organe de liaison passe dans une poulie de renvoi dont la chape est solidaire de la gaine dans sa partie haute, passe dans une poulie dont la chape est solidaire du contrepoids, passe de nouveau dans au moins une poulie de renvoi solidaire de la gaine dans sa partie haute et est fixé en un point fixe de la cabine.According to an alternative embodiment, said motorization unit is a winch and the connecting member passes through a pulley whose clevis is secured to the sheath in its upper part, passes into a pulley whose clevis is attached to the counterweight, passes back into at least one integral pulley of the sheath in its upper part and is fixed at a fixed point of the cabin.

Selon une caractéristique avantageuse de la présente invention, le contrepoids et la cabine sont mouflés de manière à ce que le rapport du déplacement de la cabine au déplacement du contrepoids est supérieur à 1.According to an advantageous characteristic of the present invention, the counterweight and the cabin are bent so that the ratio of the displacement of the cabin to the displacement of the counterweight is greater than 1.

Selon un autre mode de réalisation de la présente invention, le système d'ascenseur est du type où l'unité de motorisation dudit système d'ascenseur est un vérin. Dans ce cas, ledit organe à surveiller est l'unité de commande dudit vérin, ladite unité de commande étant montée sur ledit contrepoids.According to another embodiment of the present invention, the system elevator is of the type where the engine unit of said elevator system is a cylinder. In this case, said member to be monitored is the control unit of said jack, said control unit being mounted on said counterweight.

Selon un mode de réalisation avantageux, ledit vérin est alors monté de manière que son fût ait une extrémité qui soit solidaire du contrepoids et que l'extrémité libre de sa tige 92 soit solidaire d'une butée en partie basse de la gaine.According to an advantageous embodiment, said jack is then mounted so as to that its barrel has one end that is integral with the counterweight and that the free end its rod 92 is integral with a stop in the lower part of the sheath.

Selon un mode de réalisation, le contrepoids porte également une poulie folle, ledit organe de liaison étant fixé à un point fixe en partie haute de la gaine, passant dans la poulie folle portée par ledit contrepoids, passant de nouveau dans au moins une poulie de renvoi solidaire de la gaine dans sa partie haute et étant fixé en un point fixe de la cabine.According to one embodiment, the counterweight also carries a crazy pulley, said connecting member being fixed to a fixed point in the upper part of the sheath, passing in the idle pulley carried by said counterweight, passing back into at least a return pulley secured to the sheath in its upper part and being fixed at a point fixed cabin.

Selon un autre mode de réalisation, ledit contrepoids porte également une poulie folle, ledit organe de liaison étant fixé à un point fixe dans la partie basse de la gaine, passant dans la poulie folle portée par ledit contrepoids et étant fixé en un point fixe de la cabine.According to another embodiment, said counterweight also carries a pulley mad, said connecting member being fixed to a fixed point in the lower part of the sheath, passing through the idler pulley carried by said counterweight and being fixed at a fixed point from the cabin.

Les caractéristiques de l'invention mentionnées ci-dessus, ainsi que d'autres, apparaítront plus clairement à la lecture de la description suivante d'un exemple de réalisation, ladite description étant faite en relation avec les dessins joints, parmi lesquels :

  • La Fig. 1 est un schéma d'un système d'ascenseur selon l'art antérieur,
  • Les Figs. 2a à 2c sont des schémas d'un système d'ascenseur selon un premier mode de réalisation de l'invention, la cabine 20 et le contrepoids 30 étant à la même hauteur à la Fig. 2a, la cabine 20 étant au premier palier à la Fig. 2b et au dernier palier à la Fig. 2c,
  • Les Figs. 3a et 3b sont des schémas de deux systèmes d'ascenseur qui ne fonctionnent pas,
  • La Fig. 4 est un schéma d'un système d'ascenseur selon un autre mode de réalisation de l'invention, l'endroit où le contrepoids 30 est à la même hauteur que la cabine 20 étant au niveau d'une passerelle 12 entre deux paliers,
  • La Fig. 5 est un schéma d'un système d'ascenseur selon un autre mode de réalisation de l'invention où l'unité de motorisation 40 est un treuil,
  • La Fig. 6 est un schéma d'un système d'ascenseur selon un autre mode de réalisation de l'invention.
  • La Fig. 7 est un schéma d'un système d'ascenseur selon un autre mode de réalisation de la présente invention, et
  • La Fig. 8 est un schéma d'un système d'ascenseur selon un autre mode de réalisation de la présente invention.
    • The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being given in relation to the attached drawings, among which:
  • Fig. 1 is a diagram of an elevator system according to the prior art,
  • Figs. 2a to 2c are diagrams of an elevator system according to a first embodiment of the invention, the cab 20 and the counterweight 30 being at the same height in FIG. 2a, the cabin 20 being at the first bearing in FIG. 2b and at the last landing in FIG. 2c,
  • Figs. 3a and 3b are diagrams of two elevator systems that do not work,
  • Fig. 4 is a diagram of an elevator system according to another embodiment of the invention, the place where the counterweight 30 is at the same height as the cabin 20 being at a bridge 12 between two bearings,
  • Fig. 5 is a diagram of an elevator system according to another embodiment of the invention where the motorization unit 40 is a winch,
  • Fig. 6 is a diagram of an elevator system according to another embodiment of the invention.
  • Fig. 7 is a diagram of an elevator system according to another embodiment of the present invention, and
  • Fig. 8 is a diagram of an elevator system according to another embodiment of the present invention.

    • Le système d'ascenseur qui est représenté à la Fig. 2a comporte pour l'essentiel les mêmes éléments que ceux du système d'ascenseur qui est représenté à la Fig. 1. Ces mêmes éléments portent donc les mêmes références. On reconnaítra ainsi la gaine d'ascenseur 10 dans laquelle peut circuler verticalement une cabine 20 afin de desservir des paliers 111 à 115 ménagés le long de la gaine 10. La cabine 20 est reliée par un organe de liaison 50 et via des poulies à un contrepoids 30, lequel est équipé d'une unité de motorisation 40 prévue pour entraíner la cabine 20.The elevator system shown in FIG. 2a essentially comprises the same elements as those of the elevator system shown in FIG. 1. These same elements therefore bear the same references. This will recognize the elevator shaft 10 in which a cabin 20 can be vertically circulated so as to serve bearings 11 1 to 11 5 formed along the shaft 10. The cabin 20 is connected by a connecting member 50 and via pulleys a counterweight 30, which is equipped with a motorization unit 40 provided to drive the cabin 20.

    On comprendra que dans cet exemple de réalisation de la présente invention, l'organe à surveiller se confond avec l'unité de motorisation 40. On donnera par la suite un exemple de réalisation où cela n'est pas le cas.It will be understood that in this embodiment of the present invention, the body to be monitored merges with the motorization unit 40. It will give by the following an example of realization where this is not the case.

    Considérons de nouveau la Fig. 2a. Une des différences essentielles avec le système d'ascenseur de la Fig. 1 réside dans l'agencement de l'organe de liaison 50. Comme on peut le constater à la Fig. 2a, il est fixé à un point fixe 51 de la gaine 10, passe dans la poulie d'entraínement 41 de l'unité de motorisation 40, passe de nouveau dans une poulie de renvoi 61, mais, contrairement au système de la Fig. 1, est ensuite fixé à la cabine 20 en un point fixe 22 de celle-ci. L'organe de liaison 50 présente des brins 52 et 53 qui forment, avec la poulie d'entraínement 41, un mouflage. La poulie 41 étant montée sur le contrepoids 30, on dira aussi que le contrepoids 30 est mouflé. Contrairement au système de la Fig. 1, la cabine 20 ne comporte pas de système de moufles ou mouflage, si bien que le déplacement du contrepoids 30 est inférieur, ici de moitié inférieur, à celui de la cabine 20.Consider again Fig. 2a. One of the essential differences with the elevator system of FIG. 1 lies in the arrangement of the connecting member 50. As can be seen in FIG. 2a, it is fixed at a fixed point 51 of the sheath 10, passes into the drive pulley 41 of the motorization unit 40, passes from new in a return pulley 61, but unlike the system of FIG. 1, is then attached to the cabin 20 at a fixed point 22 thereof. The liaison body 50 has strands 52 and 53 which form, with the drive pulley 41, a hauling. The pulley 41 being mounted on the counterweight 30, it will also be said that the counterweight 30 is bent. Unlike the system of FIG. 1, the cabin 20 does has no mittens or haul system, so that the movement of the counterweight 30 is lower, in this case by half, than that of the cabin 20.

    On notera que si le système de moufles du contrepoids 30 était multiple à k poulies, le contrepoids 30 aurait un déplacement k fois inférieur à la cabine 20. Mais, pour un équilibre des masses de l'un et de l'autre, sa masse devrait être k fois supérieure à la masse de la cabine 20 à laquelle on ajoute une masse prédéterminée correspondant à la moitié de la charge nominale de la cabine 20.Note that if the system of counterweight mittens 30 was multiple to k pulleys, the counterweight 30 would have a displacement k times less than the cabin 20. But, for a balance of masses of one and the other, its mass should be k times greater than the mass of the cabin 20 to which a predetermined mass is added corresponding to half the nominal load of the cab 20.

    Pour que le déplacement du contrepoids 30 soit inférieur à celui de la cabine 20, il est également possible de moufler le contrepoids 30 et la cabine 20 de manière différente. Un exemple est donné en fin de description en relation avec la Fig. 6.For the movement of the counterweight 30 is less than that of the cabin 20, it is also possible to muffle the counterweight 30 and the cabin 20 so different. An example is given at the end of the description in relation to FIG. 6.

    L'agencement particulier de l'organe de liaison 50 décrit ci-dessus, qui assure que le déplacement du contrepoids 30 présente une amplitude inférieure à celui de la cabine 20, permet de résoudre en partie le problème lié aux opérations de maintenance mentionnées ci-dessus.The particular arrangement of the connecting member 50 described above, which ensures that the displacement of the counterweight 30 has a lower amplitude than that of the cabin 20, partially solves the problem of maintenance operations mentioned above.

    Le second moyen utilisé par l'invention est un ajustement de la longueur de l'organe de liaison 50 de manière à ce que, lorsque la cabine 20 se trouve à un endroit d'accès prédéterminé de la gaine 10, l'organe qui est monté sur le contrepoids 30 et qui est à surveiller, en l'occurrence, dans le cas de la Fig. 2, l'unité de motorisation 40, soit accessible depuis la cabine 20, notamment, comme c'est le cas à la Fig. 2, depuis l'intérieur de la cabine 20, par exemple via une trappe d'accès 23 escamotable. A la Fig. 2, pour ce faire, le contrepoids 30 se trouve sensiblement à la même hauteur que la cabine 20.The second means used by the invention is an adjustment of the length of the connecting member 50 so that when the cabin 20 is at a place predetermined access of the sheath 10, the member which is mounted on the counterweight 30 and which is to be monitored, in this case, in the case of FIG. 2, the motorization unit 40, accessible from the cabin 20, in particular, as is the case in FIG. 2, since inside the cabin 20, for example via a retractable access hatch 23. To the Fig. 2, to do this, the counterweight 30 is substantially at the same height as the cabin 20.

    On entend par endroit d'accès prédéterminé, un endroit d'accès préalablement déterminé par le concepteur du système d'ascenseur, endroit d'accès qui permet de plus l'accès à l'intérieur de la gaine 10. Lorsque la cabine 20 et le contrepoids 30 se trouvent à cet endroit d'accès, il est possible d'effectuer la maintenance du système d'ascenseur en ayant accès à l'unité de motorisation 40, au contrepoids 30 et à l'ensemble des dispositifs qui sont liés à la cabine 20.A predetermined access location is defined as an access point determined by the designer of the elevator system, an access location that allows more access to the interior of the sheath 10. When the cabin 20 and the counterweight 30 is located at this access point, it is possible to carry out system maintenance elevator having access to the motorization unit 40, to the counterweight 30 and to all the devices that are linked to the cabin 20.

    On appelle trappe d'accès escamotable une trappe qui, en fonctionnement normal du système d'ascenseur (hors maintenance), ne permet pas et cache même l'accès à la gaine 10 depuis la cabine 20 et qui, lors des opérations de maintenance, au contraire, permet l'accès à la gaine 10 et donc à l'organe à surveiller 40 monté sur le contrepoids 30. Tout système adéquat permettant une telle fonction est envisageable.A retractable access hatch is called a hatch which, in operation normal elevator system (out of maintenance), does not allow and even hides access to the sheath 10 from the cabin 20 and which, during maintenance operations, at the contrary, allows access to the sheath 10 and therefore to the organ to be monitored 40 mounted on the counterweight 30. Any suitable system for such a function is conceivable.

    On notera que dans cette position, des moyens mécaniques (non représentés) peuvent être prévus pour verrouiller le déplacement de la cabine 20 et du contrepoids 30 et ainsi obtenir une position sécurisée.Note that in this position, mechanical means (not shown) may be provided to lock the movement of the cab 20 and the counterweight 30 and thus obtain a secure position.

    A la Fig. 2a, l'endroit d'accès prédéterminé en question est un des paliers intermédiaires, en l'occurrence le palier 113.In FIG. 2a, the predetermined access location in question is one of the intermediate bearings, in this case the bearing 11 3 .

    Pour faciliter encore la maintenance ou la réparation du système d'ascenseur, il peut être avantageux de monter la ou les armoires de contrôle et de commande 70 à l'endroit d'accès prédéterminé (sur le palier 113 dans l'exemple de réalisation de la Fig. 4).To further facilitate maintenance or repair of the elevator system, it may be advantageous to mount the control and control cabinet (s) 70 at the predetermined access point (on the bearing 11 3 in the exemplary embodiment of Fig. 4).

    On notera également qu'une armoire de contrôle et de commande peut être également être montée à l'intérieur de la cabine 20.It should also be noted that a control and control cabinet can be also be mounted inside cabin 20.

    On peut voir à la Fig. 2b qui représente le système d'ascenseur de la Fig. 2a avec la même longueur de l'organe de liaison 50, que lorsque la cabine 20 est au palier 111, le plus bas, le contrepoids 30 n'est pas en haut de gaine 10. De même, on peut voir à la Fig. 2c que lorsque la cabine 20 est au palier 115 le plus haut, le contrepoids 30 n'est pas en bas de gaine 10. Cela provient essentiellement du fait que le déplacement du contrepoids 30 est n fois inférieur (ici deux fois inférieur) à celui de la cabine 20.We can see in Fig. 2b which represents the elevator system of FIG. 2a with the same length of the connecting member 50, that when the cabin 20 is at the bearing 11 1 , the lowest, the counterweight 30 is not at the top of sheath 10. Similarly, it can be seen in FIG. . 2c when the cab 20 is at bearing 11 5 is the highest, the counterweight 30 is not at the bottom of sheath 10. This is mainly due to the fact that movement of the counterweight 30 is n times lower (here two times lower) that of the cabin 20.

    Pour le montage de l'ascenseur, on peut procéder de la manière suivante. On prévoit une butée 90 (uniquement représentée à la Fig. 2c pour des raisons de lisibilité des autres Figs.) contre laquelle le contrepoids s'appuie pour se trouver dans sa position la plus basse. A ce moment, la cabine 20 est mise en position à la hauteur du dernier palier. On met alors en place l'organe de liaison de manière à ce qu'il soit tendu. L'ascenseur est prêt à fonctionner. Si l'on procède de la sorte, on constate que l'invention oblige à positionner cette butée 90 à une hauteur préalablement déterminée. On signale qu'avec les ascenseurs de l'état de la technique, cette butée était toujours positionnée en fond de la gaine d'ascenseur.To mount the lift, proceed as follows. We provides a stop 90 (only shown in Fig. 2c for readability reasons) other Figs.) against which the counterweight relies to be in its lowest position. At this moment, the cabin 20 is put in position at the height of last stop. The liaison agency is then set up so that it is tense. The elevator is ready to operate. If one proceeds in this way, one finds that the invention obliges to position this stop 90 at a predetermined height. It is reported that with the lifts of the state of the art, this stop was always positioned at the bottom of the elevator shaft.

    On doit comprendre que l'endroit d'accès prédéterminé où l'organe monté sur le contrepoids 30 qui est à surveiller, en l'occurrence, l'unité de motorisation 40, est accessible depuis la cabine 20 ne peut pas être quelconque. Il est en effet nécessaire que la cabine 20 et le contrepoids 30 puissent se déplacer librement, c'est-à-dire sans rencontrer d'obstacles, à l'intérieur de la gaine 10. Pour bien faire ressortir cet aspect, on a représenté aux Figs. 3a et 3b, deux exemples de réalisation avec la même gaine 10 que précédemment pour lesquels cela n'est pas le cas. En effet, à la Fig. 3a, l'endroit d'accès prédéterminé est au second palier 112. On peut constater que si la cabine 20 monte de trois paliers, le contrepoids 30 ne peut pas descendre d'un palier et demi. Symétriquement à la Fig. 3b, l'endroit d'accès prédéterminé est à l'avant dernier palier 114. On peut constater que si la cabine 20 descend de trois paliers, le contrepoids 30 ne peut pas monter d'un palier et demi.It should be understood that the predetermined access point where the member mounted on the counterweight 30 which is to be monitored, in this case, the drive unit 40, is accessible from the cab 20 can not be any. It is indeed necessary that the cab 20 and the counterweight 30 can move freely, that is to say without encountering obstacles, inside the sheath 10. To highlight this aspect, it is shown in Figs. 3a and 3b, two embodiments with the same sheath 10 as previously for which this is not the case. Indeed, in FIG. 3a, the predetermined access location is at the second level 11 2 . It can be seen that if the cabin 20 rises by three levels, the counterweight 30 can not go down one and a half steps. Symmetrically in FIG. 3b, the predetermined access location is at the penultimate step 11 4 . It can be seen that if the car 20 descends by three bearings, the counterweight 30 can not go up one and a half steps.

    Un cas simple peut être mis en équation.A simple case can be put in equation.

    Appelons N le nombre total de paliers à desservir et r le rang du palier où la cabine 20 et le contrepoids 30 se trouvent au même niveau, permettant ainsi l'accès à l'organe à surveiller monté sur le contrepoids d'être accessible depuis la cabine 20. Le rapport de mouflage est appelé p.Let N be the total number of steps to be serviced and r the rank of the landing where the cabin 20 and the counterweight 30 are at the same level, thus allowing access to the body to be monitored mounted on the counterweight to be accessible from the cabin 20. The hauling report is called p.

    Partons de la situation où la cabine 20 et le contrepoids 30 sont au même niveau. Si la cabine 20 descend du palier de rang r au premier palier, elle aura parcouru r-1 paliers. Le contrepoids 30, du fait du mouflage va lui monter de (r-1)/p paliers. Ce nombre (r-1)/p de paliers doit être inférieur ou égal au nombre (N-r). En conséquence, on peut écrire : (r-1)/p ≤ (N- r)   soit r ≤ (Np + 1 )/(p+1) Let's start from the situation where the cabin 20 and the counterweight 30 are at the same level. If the cabin 20 goes down from the landing row r at the first landing, it will have traveled r-1 levels. The counterweight 30, because of hauling will go up to him (r-1) / p bearings. This number (r-1) / p of steps must be less than or equal to the number (Nr). As a result, we can write: (r-1) / p ≤ (N-r) is r ≤ (Np + 1) / (p + 1)

    De même, si la cabine monte du palier de rang r au dernier palier, elle aura parcouru (N-r) paliers et le contrepoids 30, du fait du mouflage, va descendre de (N-r)/p paliers. Ce nombre (N-r)/p de paliers doit être inférieur ou égal au nombre r-1. En conséquence, on peut écrire : (N-r)/p ≤ (r-1)   soit r ≥ (N+p)/(p+1) Likewise, if the car climbs from the landing of row r to the last landing, it will have traveled (Nr) bearings and the counterweight 30, because of hauling, will descend from (Nr) / p bearings. This number (Nr) / p of steps must be less than or equal to the number r-1. As a result, we can write: (Nr) / p ≤ (r-1) is r ≥ (N + p) / (p + 1)

    En définitive, on peut écrire : (N+p)/(p+1) ≤ r ≤ (Np+1)/(p+1) In the end, we can write: (N + p) / (p + 1) ≤ r ≤ (Np + 1) / (p + 1)

    Par exemple, avec p = 2 (cas d'un mouflage simple du contrepoids 30), cette expression devient : (N+2)/3 ≤ r ≤ 2N+1/3 For example, with p = 2 (case of a simple hauling of the counterweight 30), this expression becomes: (N + 2) / 3 ≤ r ≤ 2N + 1/3

    Si N = 5, comme cela est le cas des exemples illustrés ici, on peut constater que cette expression devient : 7/3 ≤ r ≤ 11/3   2,33 ≤ r ≤ 3,66 If N = 5, as is the case of the examples illustrated here, we can see that this expression becomes: 7/3 ≤ r ≤ 11/3 2.33 ≤ r ≤ 3.66

    On notera que la valeur de r est exprimée en nombre de paliers. Si l'on veut que l'endroit d'accès soit placé à un palier, on peut constater que seule la valeur r = 3 est possible.Note that the value of r is expressed in number of steps. If we want the access place is placed at a level, we can see that only the value r = 3 is possible.

    On notera que si la valeur de p était de 3 (voir le mode de réalisation décrit ci-après en relation avec la Fig. 5), on obtiendrait les valeurs suivantes : 2 ≤ r ≤ 4 Note that if the value of p was 3 (see the embodiment described below in relation to Fig. 5), the following values would be obtained: 2 ≤ r ≤ 4

    On voit que trois paliers sur cinq pourraient faire office d'endroit d'accès prédéterminé au sens de l'invention.We see that three levels out of five could serve as access predetermined in the sense of the invention.

    D'autres exemples peuvent être donnés. Si le nombre N de paliers est de 10, les rangs des paliers où cabine 20 et contrepoids 30 qui peuvent se trouver simultanément sont 4, 5, 6 et 7 aussi bien avec un mouflage simple (p = 2) qu'avec un mouflage à rapport de trois (p = 3) et 3, 4, 5, 6, 7 et 8 pour un mouflage double (p = 4). Other examples can be given. If the number N of steps is 10, the ranks of the bearings where cabin 20 and counterweight 30 which can be simultaneously are 4, 5, 6 and 7 with both a simple haul (p = 2) and a haul ratio of three (p = 3) and 3, 4, 5, 6, 7 and 8 for double haul (p = 4).

    On notera que pour écrire les relations qui sont données ci-dessus, on a fait l'hypothèse que le contrepoids 30 ne pouvait ni monter au-dessus du dernier palier ni descendre en dessous du premier palier qui se trouve donc lui au rez-de-chaussée.Note that to write the relations given above, we made the assumption that the counterweight 30 could neither rise above the last level nor go down below the first landing which is therefore him on the ground floor.

    A la Fig. 4, on a représenté un autre mode de réalisation selon lequel l'endroit d'accès prédéterminé est une passerelle 12 aménagée à l'effet d'accès pour la maintenance dans la gaine d'ascenseur 10 à un niveau entre deux paliers, en l'occurrence entre le palier 113 et le palier 114. Au niveau de la passerelle 12, est montée l'armoire de commande électrique 70. Sur cette Fig. 4, en pointillés et en traits fins, sont représentées les positions respectives de la cabine 20 et du contrepoids 30 lorsque la cabine 20 est respectivement au dernier et au premier paliers. La passerelle 12 est prévue pour qu'il soit possible d'accéder à l'intérieur de la cabine 20 et, depuis cet intérieur, à l'organe à surveiller 40 monté sur le contrepoids 30.In FIG. 4, there is shown another embodiment according to which the predetermined access point is a gateway 12 arranged for the access effect for maintenance in the elevator shaft 10 at a level between two levels, occurrence between level 11 3 and level 11 4 . At the gateway 12 is mounted the electrical control cabinet 70. In this FIG. 4, dashed and in fine lines, are shown the respective positions of the cab 20 and the counterweight 30 when the cabin 20 is respectively at the last and the first bearings. The bridge 12 is provided so that it is possible to access the interior of the cabin 20 and, from this interior, the organ to be monitored 40 mounted on the counterweight 30.

    A la Fig. 5, on a représenté un autre mode de réalisation où l'unité de motorisation 40 est en fait un treuil également monté sur le contrepoids 30 et la poulie 41 est une poulie folle qui n'est donc pas entraínée par l'unité de motorisation 40. Dans ce mode de réalisation, l'organe de liaison 50 passe dans une poulie 80 dont la chape est solidaire de la gaine 10 dans sa partie haute, puis passe dans la poulie folle 41, rejoint ensuite la poulie de renvoi 61 avant de se fixer à la cabine 20. On peut constater que trois brins 57, 52 et 53 ont une extrémité solidaire du contrepoids 30. Il en résulte que le rapport p du déplacement de la cabine 20 au déplacement du contrepoids 30 est ici de 3.In FIG. 5, there is shown another embodiment where the motorization unit 40 is in fact a winch also mounted on the counterweight 30 and the pulley 41 is an idler pulley which is therefore not driven by the drive unit 40 In this embodiment, the connecting member 50 passes into a pulley 80 whose yoke is secured to the sheath 10 in its upper part, then passes into the idler pulley 41, then rejoins the pulley 61 before reaching attach to the cabin 20. It can be seen that three strands 57, 52 and 53 have an end secured to the counterweight 30. As a result, the ratio p of the displacement of the cab 20 to the displacement of the counterweight 30 is here 3.

    On notera que différentes valeurs de p peuvent être obtenues en constituant des mouflages appropriés aussi bien sur le contrepoids 30 que sur la cabine 20. Par exemple, un mouflage à rapport de trois sur le contrepoids et un mouflage simple sur la cabine donneraient une valeur de p du déplacement du contrepoids 30 au déplacement de la cabine 20 de 3/2. Un mouflage double sur le contrepoids 30 et un mouflage à rapport de trois sur la cabine 20 donneraient une valeur de 4/3.It should be noted that different values of p can be obtained by constituting appropriate hauls both on the counterweight 30 and on the booth 20. For example, a ratio of three haul on the counterweight and a simple haul on the booth would give a value of p of the displacement of the counterweight 30 to the displacement of the cabin 20 of 3/2. A double haul on the counterweight 30 and a three-ratio haul on the booth 20 would give a value of 4/3.

    On a représenté un tel arrangement de l'organe de liaison 50 à la Fig. 6. On peut voir que dans ce mode de réalisation, l'organe de liaison 50 est fixé sur un point fixe 51 dans la partie haute de la gaine 10, passe dans une poulie folle 100 dont la chape est solidaire du contrepoids 30, repasse dans une poulie de renvoi 80 dont la chape est solidaire de la gaine 10 dans sa partie haute, puis passe dans la poulie d'entraínement 41 de l'unité de motorisation 40, rejoint ensuite la poulie de renvoi 61 dans laquelle il passe, passe dans une poulie folle 110 dont la chape est solidaire de la cabine 20, passe dans une poulie de renvoi 120 dont la chape est solidaire de la gaine 10 dans sa partie haute puis vient se fixer à la cabine 20 en un point fixe 22.Such an arrangement of the connecting member 50 in FIG. 6. We can see that in this embodiment, the connecting member 50 is fixed on a fixed point 51 in the upper part of the sheath 10, passes in a crazy pulley 100 whose clevis is integral with the counterweight 30, returns to a return pulley 80 whose yoke is secured to the sheath 10 in its upper part, then passes into the drive pulley 41 of the motor unit 40, then rejoins the pulley 61 in which it passes, passes in a crazy pulley 110 whose yoke is secured to the cabin 20, passes into a pulley 120 whose clevis is secured to the sheath 10 in its upper part then is fixed to the cabin 20 at a fixed point 22.

    A la Fig. 7, on a représenté un autre mode de réalisation où l'unité de motorisation 40 est en fait un vérin 90 dont le fût 91 a une extrémité qui est solidaire du contrepoids 30 et dont l'extrémité libre de la tige 92 est solidaire d'une butée 12 en partie basse de la gaine 10. L'alimentation en huile du vérin 90 est assurée par une centrale hydraulique 93 qui est montée sur le contrepoids 30. En ce qui concerne l'organe de liaison 50, il est fixé à un point fixe 51 dans la partie haute de la gaine 10, passe dans une poulie folle 41 montée sur une chape 32 solidaire du contrepoids 30, passe dans une poulie de renvoi 61 dans la partie haute de la gaine 10 et est fixé sur la cabine 20. Dans ce mode de réalisation aussi, la longueur de l'organe de liaison 50 est telle que lorsque la cabine 20 se trouve à un endroit d'accès prédéterminé, ici le palier 113, l'organe à surveiller de l'unité de motorisation 40, en l'occurrence, l'unité de commande 93 du vérin 90, par exemple sa centrale hydraulique, se trouve accessible depuis la cabine 20, notamment comme cela est le cas dans le dessin, depuis l'intérieur de la cabine 20, via une trappe dans le fond de celle-ci.In FIG. 7, there is shown another embodiment where the drive unit 40 is in fact a cylinder 90 whose barrel 91 has one end which is integral with the counterweight 30 and whose free end of the rod 92 is integral with a stop 12 at the bottom of the sheath 10. The oil supply of the jack 90 is provided by a hydraulic unit 93 which is mounted on the counterweight 30. As regards the connecting member 50, it is fixed to a fixed point 51 in the upper part of the sheath 10 passes into an idler pulley 41 mounted on a yoke 32 integral with the counterweight 30, passes through a pulley 61 in the upper part of the sheath 10 and is fixed on the cabin 20 In this embodiment also, the length of the connecting member 50 is such that when the cabin 20 is at a predetermined access point, here the bearing 11 3 , the body to be monitored of the unit of motorization 40, in this case the control unit 93 of the jack 90, for example Its hydraulic power unit is accessible from the cabin 20, particularly as is the case in the drawing, from the inside of the cabin 20, via a hatch in the bottom thereof.

    A la Fig. 8, on a représenté un autre mode de réalisation de la présente invention où l'unité de motorisation 40 est là aussi un vérin 90 dont le fût 91 a une extrémité qui est solidaire du contrepoids 30 et dont l'extrémité libre de la tige 92 est solidaire d'une butée 12 de la gaine 10. La commande du vérin 90 est assurée par une unité de commande 93, par exemple une centrale hydraulique, qui est montée sur le contrepoids 30. En ce qui concerne l'organe de liaison 50, il est fixé à un point fixe 51' dans la partie basse de la gaine 10, passe dans une poulie folle 41 de mouflage montée sur une chape 32 solidaire du contrepoids 30, puis est fixé à la cabine 20, par exemple dans la partie basse de celle-ci. La longueur de l'organe de liaison 50 est telle que lorsque la cabine 20 se trouve à un endroit d'accès prédéterminé, ici le dernier palier 115, l'organe à surveiller de l'unité de motorisation 40, en l'occurrence, la centrale hydraulique 93, se trouve accessible depuis la cabine 20, notamment comme cela est le cas dans le dessin, depuis l'intérieur de la cabine 20, via une trappe dans le fond de celle-ci.In FIG. 8, there is shown another embodiment of the present invention where the drive unit 40 is also a cylinder 90 whose barrel 91 has one end which is integral with the counterweight 30 and whose free end of the rod 92 is integral with a stop 12 of the sheath 10. The control of the cylinder 90 is provided by a control unit 93, for example a hydraulic unit, which is mounted on the counterweight 30. With regard to the connecting member 50 it is fixed at a fixed point 51 'in the lower part of the sheath 10, passes into an idler pulley 41 mounted on a yoke 32 integral with the counterweight 30, and is fixed to the cabin 20, for example in the part bass of it. The length of the connecting member 50 is such that when the cabin 20 is at a predetermined access point, here the last bearing 11 5 , the body to be monitored of the motorization unit 40, in this case , the hydraulic unit 93, is accessible from the cabin 20, particularly as is the case in the drawing, from inside the cabin 20 via a trap in the bottom thereof.

    Dans les exemples à mouflage du contrepoids 30 et de la cabine 20, et pour respecter le principe de la présente invention, le mouflage du contrepoids est toujours de rang supérieur à celui de la cabine de manière à ce que celui-ci ait une longueur de déplacement inférieure à la longueur de déplacement de la cabine 20.In the examples for hauling the counterweight 30 and the cabin 20, and for respect the principle of the present invention, the hauling of the counterweight is always higher than that of the cabin so that it has a length of displacement less than the traveling length of the cabin 20.

    Claims (13)

    Système d'ascenseur du type comportant une cabine (20) prévue pour circuler verticalement dans une gaine (10) de manière à desservir une pluralité de paliers (111 à 11 n), un contrepoids (30) relié à ladite cabine (20) via des poulies et par un organe de liaison (50), ledit contrepoids (30) portant un organe à surveiller (40), caractérisé en ce que ledit organe de liaison (50) est arrangé de manière à ce que le déplacement dudit contrepoids (30) dans la gaine (10) soit inférieur à celui de la cabine (20) et en ce que l'organe de liaison (50) présente une longueur totale telle que lorsque la cabine (20) se trouve à un endroit prédéterminé d'accès à l'intérieur de la gaine (10), l'organe à surveiller (40) porté par le contrepoids (30) soit accessible depuis la cabine (20), mais telle aussi que la cabine (20) et le contrepoids (30) puissent se déplacer librement à l'intérieur de la gaine (10).Elevator system of the type having a booth (20) arranged to flow vertically in a sheath (10) so as to serve a plurality of bearings (11 1 to 11 n ), a counterweight (30) connected to said booth (20) via pulleys and by a connecting member (50), said counterweight (30) carrying a member to be monitored (40), characterized in that said connecting member (50) is arranged so that movement of said counterweight ( 30) in the sheath (10) is smaller than that of the booth (20) and in that the connecting member (50) has a total length such that when the booth (20) is at a predetermined location of access inside the sheath (10), the member to be monitored (40) carried by the counterweight (30) is accessible from the cabin (20), but also as the cabin (20) and the counterweight (30). ) can move freely inside the sheath (10). Système d'ascenseur selon la revendication 1, caractérisé en ce que ledit endroit d'accès prédéterminé est un palier (11).Elevator system according to claim 1, characterized in that said predetermined access point is a bearing (11). Système d'ascenseur selon la revendication 1, caractérisé en ce que ledit endroit d'accès prédéterminé est une passerelle (12) prévue entre deux paliers.Elevator system according to claim 1, characterized in that said predetermined access point is a bridge (12) provided between two bearings. Système d'ascenseur selon une des revendications précédentes, caractérisé en ce que la ou les armoires de contrôle et de commande électrique (70) dudit système d'ascenseur sont accessibles depuis la cabine d'ascenseur (20) lorsque celle-ci se trouve audit endroit prédéterminé.Elevator system according to one of the preceding claims, characterized in that the electrical control and control cabinet or cabinets (70) of said elevator system are accessible from the elevator car (20) when the latter is located at the elevator. predetermined place. Système d'ascenseur selon une des revendications précédentes, caractérisé en ce que ladite cabine (20) comporte une trappe escamotable (23) permettant l'accès de l'organe à surveiller (40) porté par le contrepoids (30) depuis l'intérieur de ladite cabine (20).Elevator system according to one of the preceding claims, characterized in that said cabin (20) comprises a retractable hatch (23) allowing access of the body to be monitored (40) carried by the counterweight (30) from the inside of said cabin (20). Système d'ascenseur selon une des revendications précédentes, caractérisé en ce que ledit organe à surveiller (40) est l'unité de motorisation de l'ascenseur.Elevator system according to one of the preceding claims, characterized in that said member to be monitored (40) is the motor unit of the elevator. Système d'ascenseur selon la revendication 6, caractérisé en ce que ledit organe de liaison (50) est fixé à un point fixe (51) en partie haute de la gaine (10), passe dans la poulie d'entraínement (41) de l'unité de motorisation (40), passe de nouveau dans au moins une poulie de renvoi (61) solidaire de la gaine (10) dans sa partie haute et est fixé en un point fixe (22) de la cabine (20).Elevator system according to claim 6, characterized in that said connecting member (50) is fixed to a fixed point (51) in the upper part of the sheath (10), passes into the drive pulley (41) of the motorization unit (40) passes again into at least one return pulley (61) secured to the sheath (10) in its upper part and is fixed at a fixed point (22) of the cabin (20). Système d'ascenseur selon la revendication 6, caractérisé en ce que ladite unité de motorisation (40) est un treuil et en ce que l'organe de liaison (50) passe dans une poulie de renvoi (80) dont la chape est solidaire de la gaine (10) dans sa partie haute, passe dans une poulie (41) dont la chape est solidaire du contrepoids (30), passe de nouveau dans au moins une poulie de renvoi (61) solidaire de la gaine (10) dans sa partie haute et est fixé en un point fixe (22) de la cabine (20).Elevator system according to claim 6, characterized in that said motor unit (40) is a winch and in that the connecting member (50) passes through a pulley (80) whose clevis is secured to the sheath (10) in its upper part, passes into a pulley (41) whose clevis is integral with the counterweight (30), passes again in at least one pulley (61) integral with the sheath (10) in its upper part and is fixed at a fixed point (22) of the cabin (20). Système d'ascenseur selon la revendication 6, caractérisé en ce que le contrepoids (30) et la cabine (20) sont mouflés de manière à ce que le rapport du déplacement de la cabine (20) au déplacement du contrepoids (30) est supérieur à 1.Elevator system according to claim 6, characterized in that the counterweight (30) and the car (20) are inflated so that the ratio of the displacement of the car (20) to the movement of the counterweight (30) is greater than to 1. Système d'ascenseur du type où l'unité de motorisation (40) dudit système d'ascenseur est un vérin (90), système d'ascenseur en outre selon une des revendications 1 à 5, caractérisé en ce que ledit organe à surveiller l'unité de commande (93) dudit vérin (90), ladite unité de commande (93) étant montée sur ledit contrepoids (30).Elevator system of the type where the drive unit (40) of said elevator system is a cylinder (90), further elevator system according to one of claims 1 to 5, characterized in that said member to monitor the control unit (93) of said cylinder (90), said control unit (93) being mounted on said counterweight (30). Système d'ascenseur selon la revendication 10, caractérisé en ce que ledit vérin (90) est monté de manière que son fût (91) ait une extrémité qui est solidaire du contrepoids (30) et que l'extrémité libre de sa tige 92 soit solidaire d'une butée (12) en partie basse de la gaine (10).Elevator system according to claim 10, characterized in that said jack (90) is mounted so that its barrel (91) has an end which is integral with the counterweight (30) and that the free end of its rod 92 is secured to a stop (12) at the bottom of the sheath (10). Système d'ascenseur selon la revendication 11, caractérisé en ce que le contrepoids (30) porte également une poulie folle (41), ledit organe de liaison (50) étant fixé à un point fixe (51) en partie haute de la gaine (10), passant dans la poulie folle (41) portée par ledit contrepoids (30), passant de nouveau dans au moins une poulie de renvoi (61) solidaire de la gaine (10) dans sa partie haute et étant fixé en un point fixe (22) de la cabine (20).Elevator system according to claim 11, characterized in that the counterweight (30) also carries a idler pulley (41), said connecting member (50) being fixed to a fixed point (51) in the upper part of the sheath ( 10), passing through the idle pulley (41) carried by said counterweight (30), passing again in at least one return pulley (61) integral with the sheath (10) in its upper part and being fixed at a fixed point (22) of the cabin (20). Système d'ascenseur selon la revendication 11, caractérisé en ce que ledit contrepoids (30) porte également une poulie folle (41), ledit organe de liaison (50) étant fixé à un point fixe (51') dans la partie basse de la gaine (10), passant dans la poulie folle (41) portée par ledit contrepoids (30) et étant fixé en un point fixe (22) de la cabine (20).Elevator system according to claim 11, characterized in that said counterweight (30) also carries an idler pulley (41), said link member (50) being fixed to a fixed point (51 ') in the lower part of the sheath (10) passing through the idle pulley (41) carried by said counterweight (30) and being fixed at a fixed point (22) of the car (20).
    EP04077248A 2003-08-26 2004-08-06 Elevator system with drive on the counterweight Withdrawn EP1512657A1 (en)

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    FR0310176 2003-08-26
    FR0310176A FR2877931A1 (en) 2003-08-26 2003-08-26 Elevator system, has connection unit arranged such that movement of counterbalance is less than that of cabin, and having length such that motorization unit is accessible from cabin, when cabin is in one of multiple stages
    FR0311236 2003-09-25
    FR0311236A FR2877932B1 (en) 2003-08-26 2003-09-25 ELEVATOR SYSTEM HAVING A COUNTERWEIGHT MOTORIZATION UNIT

    Publications (1)

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    EP1512657A1 true EP1512657A1 (en) 2005-03-09

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    Application Number Title Priority Date Filing Date
    EP04077248A Withdrawn EP1512657A1 (en) 2003-08-26 2004-08-06 Elevator system with drive on the counterweight

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    EP (1) EP1512657A1 (en)
    FR (1) FR2877932B1 (en)

    Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP0924155A2 (en) * 1997-12-22 1999-06-23 Otis Elevator Company Hydraulic elevator without a machineroom
    WO1999064339A1 (en) * 1998-06-09 1999-12-16 Menozzi Renzo S.R.L. Hydraulic arrangement for lift
    US6382361B2 (en) * 1999-12-09 2002-05-07 Hitachi, Ltd. Elevator
    FR2819796A1 (en) * 2001-01-19 2002-07-26 Emile Kadoche MOTORIZATION ON BOARD UNDER AN ELEVATOR CAB

    Patent Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP0924155A2 (en) * 1997-12-22 1999-06-23 Otis Elevator Company Hydraulic elevator without a machineroom
    WO1999064339A1 (en) * 1998-06-09 1999-12-16 Menozzi Renzo S.R.L. Hydraulic arrangement for lift
    US6382361B2 (en) * 1999-12-09 2002-05-07 Hitachi, Ltd. Elevator
    FR2819796A1 (en) * 2001-01-19 2002-07-26 Emile Kadoche MOTORIZATION ON BOARD UNDER AN ELEVATOR CAB

    Also Published As

    Publication number Publication date
    FR2877932B1 (en) 2007-02-16
    FR2877932A1 (en) 2006-05-19

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