EP3152147A1 - Système de tendeur pour un dispositif d'élévation sans contrepoids - Google Patents

Système de tendeur pour un dispositif d'élévation sans contrepoids

Info

Publication number
EP3152147A1
EP3152147A1 EP14731566.7A EP14731566A EP3152147A1 EP 3152147 A1 EP3152147 A1 EP 3152147A1 EP 14731566 A EP14731566 A EP 14731566A EP 3152147 A1 EP3152147 A1 EP 3152147A1
Authority
EP
European Patent Office
Prior art keywords
tensioner
joined
counter
weight
support plate
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Withdrawn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
EP14731566.7A
Other languages
German (de)
English (en)
Inventor
Jorge GALLARDO MIELGO
José Luis Blanco Sánchez
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 AG
TK Elevator GmbH
Original Assignee
ThyssenKrupp AG
ThyssenKrupp Elevator AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ThyssenKrupp AG, ThyssenKrupp Elevator AG filed Critical ThyssenKrupp AG
Publication of EP3152147A1 publication Critical patent/EP3152147A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B66B11/0065—Roping
    • B66B11/007—Roping for counterweightless elevators

Definitions

  • the subject matter of the present invention is, as established in the invention title, a tensioner system for a lift without a counter-weight, which is intended to ensure tension in the lower strand when faced with elongation brought about in the suspension system of the lift without a counter-weight.
  • the present invention is characterised by the fact that it is a basic lever system actuated by gravity, eliminating the need for any sort of auxil nowadaysy actuation system, be it mechanical, hydraulic, electrical or similar. Thus, it ach ieves an equ il ibrium between momenta, by balancing out the force generated by the load of the tensioner with the defined and necessary tension in the lower strand of the suspension system.
  • the present invention falls within the field of lifts without a counter-weight, and in particular, among those having means to balance the tension in the lower strand of the suspension system.
  • the object of the present invention is to develop a tensioner system for a lift without a counter-weight that overcomes the aforementioned drawbacks, developing a tensioner system that is actuated by gravity alone, without the need for additional actuation means, that occupies a minimal amount of space, that ensures the weights move vertically and keeps the sockets in parallel with the suspension, developing a tensioner system such as that which is described below, and whose essential nature is expressed in the first claim.
  • the subject matter of the present invention is a tensioner system for a lift without a counter-weight, which is intended to ensure tension in the lower strand of the lift.
  • FIG 1 one may observe a schematic representation of a lift without a counter-weight.
  • the lift is made up of a lower strand (6) and an upper strand (4).
  • the upper strand (4) suspends the car (2) and its length is variable, due to the movement of the lift.
  • the lower strand (6) is guided by the lower portion of the car (2) from the machine (3) to the tensioner system (1 ), and tensed by said system.
  • Said lower strand (6) collects and returns the belt to the upper strand (4) as the car (2) moves up and down, such that the position of the belt is kept constant both at the belt socket end and at the socket tensioner end, except in possible instances of elongation of the belt, thus eliminating the need for a mobile counter-weight in the shaft.
  • the tensioner system object of the invention is a lever system actuated by gravity, eliminating the need to use mechanical, hydraulic, or other such means.
  • the system balances out the force generated by the load of the tensioner with the defined and necessary tension in the lower strand of the suspension system.
  • the tensioner system is a lever system actuated by gravity, and is formed by:
  • a tensioner support assembly forming a first articulated quadrilateral, and which is joined at one of its ends to a belt socket assembly forming a second articulated quadrilateral.
  • tensioner support assembly forming the first articulated quadrilateral comprises:
  • ⁇ a support plate that is joined to a fixed element, such as the guide, the shaft wall, the floor, etc.,
  • lever arms are joined to the weight support assembly and to the tensioner arm.
  • the belt socket assembly responsible for fastening the end of the lower strand opposite the mach ine, and wh ich forms the second articulated quadrilateral, and is joined to the lower end of the tensioner arm.
  • the lever arms define the lever ratio. They are joined with a pivot point to the support plate.
  • the tensioner su pport assembly that forms the first articu lated quadrilateral acts on the leverage principle, where the joint between the tensioner arms and the support plate constitutes a fixed point.
  • the weight support assembly and the tensioner arm are fastened to the lever arms by a hinge, thus forming either a type 1 or a type 2 lever.
  • This first articulated quadrilateral making up a basic lever system seeks to:
  • the tensioner system is equipped with a safety element with an electrical contact or limit switch that limits the useful range of the tensioner, keeping the lower strand from losing tension or being damaged due to overtension, sending the system and order to stop, should the defined useful range be reached.
  • Stops may be arranged upon the support plate to limit the movement of the lever arms, in order to prevent the mechanism from operating incorrectly.
  • the electrical contact or limit switch is activated prior to any contact that the arms might have against the stops mounted upon the support plate.
  • the belt socket assembly comprises a middle plate joined to the lower end of the tensioner arm of the tensioner support assembly. Two joining arms are fastened to the middle plate, the lower end of the former being joined to a terminal support.
  • the purpose of the belt socket is to:
  • the tensioner system ensures the traction of the belt inside the mach ine, fastens the end of the lower strand of the suspension system, absorbs any elongation of the strands, and takes up a minimal amount of space.
  • the first articulated quadrilateral makes it so that both the weight support assembly and the tensioner arm are only allowed to move vertically. Meanwhile, the second articulated quadrilateral ensures that the belt socket is always parallel and vertical, which also helps with load distribution and helps to absorb any horizontal deviation due to the rotation of the lever arms, keeping the terminal support of the support vertical.
  • the tensioner system ensures constant tension in the lower strand, absorbing any elongations of the suspension system, ensures that the belt socket is always parallel and vertical, occupying a minimal amount of space, and being actuated by gravity alone.
  • figure 1 one may observe a schematic representation of a lift without a counter-weight.
  • Figure 2 shows a complete view of the tensioner system, object of the invention.
  • Figure 3 shows the tensioner support assembly
  • Figure 4 shows the weight support assembly
  • FIG. 5 shows the belt socket assembly. PREFERRED EMBODIMENT OF THE INVENTION
  • the tensioner system (1 ) for a lift without a counter-weight is characterised in that it comprises:
  • a tensioner support assembly (8) forming a first articulated quadrilateral, and which is joined at one of its ends to
  • the tensioner su pport assembly (8) form ing the first articulated quadrilateral comprises:
  • Figure 3 shows the tensioner support assembly (8) in greater detail, wherein it is worth highlighting the hinged joining of the support plate (10) to the lever arms (1 1 ) through the hinge joints (14), such that the support plate (10) is fastened to a fixed element such as the guide, shaft wall, or similar.
  • a fixed element such as the guide, shaft wall, or similar.
  • the tensioner system is equipped with a safety element based on an electrical contact or limit switch (18), such that if the tensioner reaches the end of its range, whereby the lower strand may become slack, the limit switch will detect it and send the system the order to stop. If, on the contrary, the tensioner should reach the opposite end, whereby the suspension system could be damaged due to overtension, the limit switch (18) will likewise detect it and send the system the order to stop.
  • the l imit switch (1 8) in either of its two directions, carries out this detection prior to contact with the stops (1 0.1 ) that the support plate (10) is equipped with.
  • figure 5 shows the belt socket assembly (9) of the tensioner, which comprises a middle plate (15) joined to the lower end of the tensioner arm (13), and joining arms (16) joined to the middle plate (15) by their upper end and to terminal supports (17) by their lower end.
  • This belt socket assembly is able to keep the belt socket plate parallel to the floor, and to absorb any horizontal deviation due to the rotation of the lever arms, keeping the terminal support of the tensioner in a vertical relationship with the start base.

Abstract

L'invention porte sur un système de tendeur, lequel système fonctionne comme un type de levier actionné par la gravité, et lequel comprend : un ensemble support de tendeur (8) formant un premier quadrilatère articulé, et qui est relié à l'une de ses extrémités à un ensemble support de courroie (9) formant un second quadrilatère articulé, l'ensemble support de tendeur (8) comprenant : une plaque de support (10) qui est reliée à un élément fixe, tel qu'un guide, à la paroi de puits, ou similaire, deux bras de levier (11) qui sont reliés par une charnière avec un point de pivot à la plaque de support (10), un ensemble support de poids (12) et un bras de tendeur (13), lesdits bras de levier (11) étant reliés à l'ensemble support de poids (12) et au bras de tendeur (13). Le système de tendeur assure une tension constante dans le brin inférieur, absorbant tout allongement du système de suspension, assure que le support de courroie est toujours parallèle et vertical, ce qui lui permet de maintenir le support terminal en relation verticale avec la base de départ, d'occuper une quantité d'espace minimal, et d'être uniquement actionné par la gravité. De même, le système comporte un contact électrique (18) qui définit la plage de fonctionnement du système.
EP14731566.7A 2014-06-06 2014-06-06 Système de tendeur pour un dispositif d'élévation sans contrepoids Withdrawn EP3152147A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/061843 WO2015185154A1 (fr) 2014-06-06 2014-06-06 Système de tendeur pour un dispositif d'élévation sans contrepoids

Publications (1)

Publication Number Publication Date
EP3152147A1 true EP3152147A1 (fr) 2017-04-12

Family

ID=50979729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14731566.7A Withdrawn EP3152147A1 (fr) 2014-06-06 2014-06-06 Système de tendeur pour un dispositif d'élévation sans contrepoids

Country Status (2)

Country Link
EP (1) EP3152147A1 (fr)
WO (1) WO2015185154A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2136540A1 (de) * 1971-07-22 1973-02-01 Rudolf Dr Ing Vogel Aufzug
JPS5734229Y2 (fr) * 1978-03-28 1982-07-28
FI119237B (fi) 2003-01-31 2008-09-15 Kone Corp Hissi, menetelmä hissin muodostamiseksi ja tasauslaitteiston käyttö
US20060225965A1 (en) 2003-04-22 2006-10-12 Siewert Bryan R Elevator system without a moving counterweight
FI20060627L (fi) 2006-06-28 2007-12-29 Kone Corp Järjestely vastapainottomassa hississä
WO2010059167A1 (fr) 2008-11-24 2010-05-27 Otis Elevator Company Arrangement de tension pour système d'ascenseur sans contrepoids
ES2326023B1 (es) 2009-03-25 2010-07-15 Ascensores Johima, S.L Ascensor de polea diferencial.

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015185154A1 *

Also Published As

Publication number Publication date
WO2015185154A1 (fr) 2015-12-10

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