EP1982945B9 - Dispositif de freinage ou d'arrêt avec rouleau tournant en partie sur un revêtement en bronze et avec surface de friction inclinée - Google Patents

Dispositif de freinage ou d'arrêt avec rouleau tournant en partie sur un revêtement en bronze et avec surface de friction inclinée Download PDF

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Publication number
EP1982945B9
EP1982945B9 EP07007905A EP07007905A EP1982945B9 EP 1982945 B9 EP1982945 B9 EP 1982945B9 EP 07007905 A EP07007905 A EP 07007905A EP 07007905 A EP07007905 A EP 07007905A EP 1982945 B9 EP1982945 B9 EP 1982945B9
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EP
European Patent Office
Prior art keywords
braking
roller
pressure body
catching device
guide rail
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.)
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Application number
EP07007905A
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German (de)
English (en)
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EP1982945A1 (fr
EP1982945B1 (fr
Inventor
Karl Kriener
Karl Sturmlechner
Franz Grubner
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.)
Wittur Holding GmbH
Original Assignee
Wittur Holding GmbH
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 to EP07007905A priority Critical patent/EP1982945B9/fr
Application filed by Wittur Holding GmbH filed Critical Wittur Holding GmbH
Priority to AT07007905T priority patent/ATE486811T1/de
Priority to DE502007005550T priority patent/DE502007005550D1/de
Priority to ES07007905T priority patent/ES2353979T3/es
Priority to CN200880012697.7A priority patent/CN101663221B/zh
Priority to PCT/EP2008/003034 priority patent/WO2008128689A2/fr
Priority to RU2009137552/11A priority patent/RU2438961C2/ru
Publication of EP1982945A1 publication Critical patent/EP1982945A1/fr
Application granted granted Critical
Publication of EP1982945B1 publication Critical patent/EP1982945B1/fr
Publication of EP1982945B9 publication Critical patent/EP1982945B9/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges

Definitions

  • the invention relates to a braking or catching device for an elevator car, which is guided in a shaft along vertical guide rails.
  • the braking or catching device uses a provided with a friction roller as a brake body. Once activated, this role is drawn into a gap. In this case, the friction generating pressure is always greater, the further the role is drawn into the gap in the direction of its final position.
  • Elevator car or car is used here and in the following as a collective term and includes both conventional combinations of cabins or load carriers or platforms of all kinds, which are supported by a car frame, as well as car frame-less constructions.
  • Braking or catching devices on elevators serve to lift an elevator car in the event of an uncontrolled driving condition or an impermissibly high driving speed, such as they z. B. in case of malfunction of the controller or a drive or its brake and a rope break may occur, decelerate.
  • a corresponding brake catch device is known, for example, from the European patent application EP 0 841 280 A1 known.
  • the proposed by said patent application brake catcher is of modern design, it comes with only a few components. Unlike the older brake catcher devices from the prior art, it requires no additional screw or disc springs to specify a defined course of the braking force up to the cabin catch. Instead, the intended for mounting on the elevator car and the brake roller overlapping housing of the brake catcher (hereinafter: the pressure body) is designed here so that it itself exerts a defined spring action.
  • the pressure body with activated brake on one side possibly with the interposition of a friction lining presses directly on the guide rail and presses on the other side indirectly via the brake roller on the guide rail.
  • the current braking forces are correspondingly higher.
  • This spring effect together with the corresponding layout of the groove or gap, where the brake roller runs under high friction, to the fact that sets the desired, defined braking effect.
  • a major advantage of this known brake catcher is in particular that its special design already largely counteracts home misalignment between the guide rail and the braking surface. Therefore, the use causes d. H. the activation of this brake catcher, only a slight wear on the guide rail. The brake catcher itself is only subject to low wear.
  • a braking device which uses a pressure body in the form of a leaf spring to press the brake roller to the rail.
  • the pressure spring forming the leaf spring is arranged obliquely, so that between it and the guide rail, a wedge-shaped gap is formed, in which a steel roller is pulled in the case of braking.
  • the roll "on one side” of the gap “steel on steel” rolls with its knurled outer diameter on the guide rail, while on the other side of the gap with its shoulders under considerable pressure “steel on steel "on the pressure body forming leaf spring slides and so generates the braking torque.
  • a stop made of bronze is provided, which is not in the range of the role of the gap across the gap transmitted power flow between the guide rail and the pressure body in the form of the leaf spring, but against which the roller starts laterally and targeted by the role is worn to allow the role to penetrate deeper into the wedge gap between rail and leaf spring over time and compensate in this way, the roll-side wear.
  • the tribological conditions are overall (and thus the entire sliding behavior, including that in the steel pairing) significantly improved by the fact that the gap is provided on the side of the pressure hull in the region of its end position locally with a fitting of bearing material, which is designed and arranged in that, in its final position, the roller partly slides on the bearing material and partly on the i. d. R. harder material of the rest of the sliding surface providing pressure hull.
  • This remaining sliding surface need not necessarily be an integral part of the pressure hull. Instead, it may also be another fitting that is attached to the pressure body.
  • a fitting advantageously (but not necessarily) means a separate, attached to the pressure body component. Rather, in principle, sprues or otherwise thick coatings are covered. However, the best results can be achieved by means of a component that is fastened separately and / or permanently to the pressure body and serves as a fitting. This is because the easiest way to provide for a bearing made of bearing material, which has the required thickness and abrasion resistance in said manner.
  • the fitting consists of a non-ferrous metal.
  • Non-ferrous metals have the required tribological properties.
  • a non-ferrous metal is selected that can withstand high pressures.
  • Such a non-ferrous metal is for example bearing bronze.
  • the pressure body (or the additional fitting on which the roller next to the lining of bearing material glides) is made of tempered steel, instead of spring steel. This brings significant advantages in the machining of the pressure hull, because spring steel can only be machined extremely bad.
  • the role carries by their sliding on the bearing material or the fitting of bearing material intended from bearing material and drags the worn bearing material in the area in which the roller slides on the pressure body, d. H.
  • the steel surface is provided with non-ferrous metal particles.
  • a profiling in particular a profiling in the form of a knurl.
  • the purpose of such a profiling is to influence the friction conditions in such a way that it is always ensured that the roll substantially rolls both on the guide rail and on the pressure body in the phase in which it is progressively drawn deeper into the gap. and does not slide appreciably.
  • the role reliably reaches its final position.
  • said profiling ensures that the roll still rolls on the guide rail when it has reached its final position. This is the only way to ensure that the effect according to the invention occurs.
  • the knurl is designed so that between the guide rail and the role actually to real stiction or a combination of static friction and possibly positive fit in the area of the knurling tips, so that the roll rolls completely on the guide rail.
  • the fitting consists of a bolt of a suitable bearing material, which is rotationally held in a corresponding receiving bore of the pressure hull.
  • both the bolt and the receiving bore assigned to it are milled or ground over, at least in the region in which the roller slides as intended on the bolt. This is done by first inserting the bolt into the bore, even before the contour has been milled or ground, which determines the contact between the pressure body and its fitting from the bearing material determined in the role. The milling or grinding process takes place afterwards. In this way, the fitting of the bearing material can be easily and very firmly connected to the pressure hull. Under a bolt is preferably understood round material.
  • a four-, six- or multi-bolt is conceivable in principle, but de praxi actually rather a Theoretikum, as in the pressure body much easier a corresponding round recording for the bolt can be incorporated, as a four- or more-edged.
  • the stop that limits the path that the roller is pulled into the gap and thus each defines an end position for the role, designed so that the material removal at the fitting of the bearing material is at least partially compensated by the fact that the role can be pulled further into the gap between the pressure hull and the guide rail, when the fitting of the bearing material is noticeably worn.
  • the groove used in said embodiment is designed such that the friction surface or knurl of the roll in the end position still has the corresponding clearance with respect to the pressure body. if the fitting is a little worn and thereby provides over the shoulders of the role of an end position for the role, which no longer corresponds to their original end position.
  • the gap-forming portion of the pressure body has a groove for receiving the provided for contact with the guide rail friction surface of the roller.
  • the groove is designed so that when the roller is in its final position, play between the friction surface (the largest circumference) of the roller and the groove, so that the friction surface has no or no significant contact with the pressure body and its fitting and the roller pressure side, at least substantially only by the sliding friction between the usually smooth shoulders and the pressure hull and the fitting is braked.
  • a high friction power (and thus a corresponding braking or catching effect) can be realized by the geometry and in particular the wedge angle of the gap are selected so that up to 35% higher pressure is achieved, as in braking - or catching devices in which only steel surfaces slide on each other.
  • At least one of the intended on the side of the braking or catching braking or catching acting to rest on the guide rail surfaces with inactive braking or catching device with respect to its associated surface of the guide rail obliquely is.
  • the inclination must be dimensioned such that at least in the phase in which the braking or catching device is fully activated, the surface is aligned parallel to the surface of the guide rail which is actually associated with it and substantially bears against it over its whole area, ie. H. that intended for contact with the guide rail surface in this, the strongest load-making phase is actually applied over a large area on the guide rail.
  • the inclined surface can be both the counter-pressure surface (preferred) and the surface on the roller that comes into contact with the guide rail as intended.
  • the key advantage of the invention is that the pressure and the static or sliding friction forces, and the heat generated thereby, spread over a larger area, especially in the phase of maximum delay and load, which increases the risk of localized flow, burning or Welding and wear of the friction surfaces and damage to the corresponding surfaces of the guide rails significantly reduced.
  • the mobility required for the alignment of the inclined surface is produced by the fact that the inclined surface moves in the course of the elastic expansion of the base body together with the corresponding leg of the body relative to the associated functional surface of the guide rail. This is achieved by not only moving towards the guide rail, but also performing a rotational movement relative to the guide rail in the resultant.
  • no plate or coil springs are installed in the brake or catching device according to the invention. Because such springs are not only a cost factor, but are also a potential source of error - especially in coil springs spring breaks are never completely ruled out, especially when coupled to packages disc springs sliding and static friction influences occur during compression, which under unfavorable circumstances noticeable irregularities or deviations can occur in the reproducibility.
  • Fig. 2 how out Fig. 2 can be seen, the guide rails 2 a connected via a web 6 with a rail foot 7 rail head 8, which the active surfaces of the guide rail forms, with which the braking or catching device according to the invention interacts after activation.
  • a braking member in the form of a roller 9 is provided, which is close to its two lateral end faces (see Fig. 1 ) is provided with shoulders 11.
  • the outermost lateral surface of the roller 9 serves as a friction surface 12.
  • it is provided with a knurling or with a different profiling. The latter serves to reliably pull the roller (9) into the gap or roll it in until the roller (9) reaches its end position.
  • the knurl also ensures that in the end position of the role at least no significant sliding between the roller (9) and the guide rail (2) occurs, but rolls the role on the guide rail.
  • the Fig. 2 shows a braking or catching device 14 according to the invention in a horizontal section.
  • the braking or catching device has a pressure body 19, which essentially corresponds to a U-profile, but u. U. could also have the cross section of a slotted circular or elliptical profile. Decisive is that the two legs 16, 17 in the region of their free ends, the guide rail 2 include.
  • the pressure body 19 on its leg 16 on a gap-forming portion 20a which together with the corresponding guide rail forms a gap 20 in intended mounted braking device 14, in which the roller 9 is guided.
  • the gap-forming portion 20a has a groove 21, which receives the friction surface 12 (see Fig.
  • the pressure hull consists of a suitable tempering steel, as it is used for the production of screw and disc springs. Which tempering steels have hitherto been used for screw and disc springs is known to the person skilled in the art.
  • the invention required spring action is achieved by suitable design of the pressure body 19 as a U-profile or the like. Unlike spring steel, such tempered steel can be machined very easily.
  • the roller 9 is rotatable on a z.
  • axis 22 which, as of Fig. 3 illustrated, an opening 23 in the leg 16 (or in an attachment of the leg in the form of a holding plate 18) passes through and is held in a holder 25.
  • the gap 20 is essentially limited on the one hand by the guide rail and on the other hand by the gap-forming portion 20a of the pressure hull.
  • the contour of the gap-forming portion 20a corresponds to one of Fig. 8 shown contours. Each of these selectable contours corresponds to a specific response characteristic and a maximum achievable braking friction.
  • a preferably V-shaped contoured locking surface 31 is provided between the up-driving and down-driving portions of the gap-forming portion in the embodiments of FIG Fig. 3b and 7 .
  • This is designed so that the roller 9 (despite the inevitable friction influences) is retracted and held in almost always the same position at re-deactivation. This ensures z. B. a corresponding return spring, about as, as of the Fig. 3 and 7 shown.
  • Fig. 3 or 3b shown embodiment uses a pivotable holder 25, which holds the role in rest position and possibly the movement of the role in the gap participates, as in detail in the prepublished international application WO 2006/077243 A1 which is referred to herein to avoid repetition, as to the pivotal holder or mechanism which serves to initiate the braking by bringing the roller into contact with the guide rail from the rest position and the roller later returns to their rest position.
  • Fig. 4 differs from that of the Fig. 3 . 3b and 7 Shown by the fact that it acts only unidirectionally and - as shown here - is primarily intended for the mechanical release by a fastened to the axis 22vonsbegrenzerseil. Both are optionally possible in all other embodiments.
  • Said holder 25 is surrounded by a spring 28, which is designed as a compression spring and biases the roller 9 in the direction of the guide rail 2.
  • This spring 28 counteracts a Soleniod (not shown), which is controlled by an electronic unit, not shown here, which is housed in the elevator shaft from which, if necessary, at least parts can also be installed cabin-fixed.
  • the solenoid is de-energized when the braking or catching device should respond because either an emergency, ie an overspeed exists, or u. U. also because the elevator car is to be set in regular operation, z.
  • the spring 28 moves the holder 25 and thus the roller 9 against the guide rail 2, so that this with its friction surface 12 (see Fig. 1 ) on the guide rail 2 (see Fig. 3 ) comes to the plant. It is thereby rotated, but also moved translationally relative to the pressure body 19. Namely, such that it soon not only touches the guide rail 2, but also the rear side, the groove 21, or, more precisely, the bottom of the groove 21st
  • the roller 9 rotates clockwise (as viewed in FIG Fig. 3 ).
  • the roller 9 once it has come back into contact with the bottom of the groove 21, with its friction surface or knurl 12 on the one hand on the guide rail 2 and on the other hand on the bottom of the groove 21.
  • the roller 9 is getting deeper pulled into the wedge-shaped narrowing gap 20.
  • the friction or contact conditions change on the role.
  • the groove 21 is now so deep that the friction surface or knurl 12 loses contact with the bottom of the groove and the roller 9 rests on the pressure body side only with their shoulders 11 on the pressure body 19.
  • the friction surface or knurl 12 has at least substantially clearance and the braking or catching friction is produced at least predominantly by the sliding of the shoulders 11 on the pressure body 19 or the fitting 33.
  • the shoulders 11 predetermine the end position of the roll by pressing on the side of the press against a surface which is so steep that the roll can not be pulled further into the gap.
  • the decisive first aspect of the invention in this context is in Fig. 3b to recognize.
  • the pressure body 19 is provided with a fitting 33 of bearing metal, here in the form of bearing bronze. This is arranged and designed so that the shoulders 11 slide in the end position partially on the fitting 33 and partially directly on the base body, ie partially slide on the relative to the fitting 33 much firmer material of the body 19.
  • a fitting 33 of bearing metal here in the form of bearing bronze.
  • the fitting 33 is dimensioned and arranged so that the roller, once it has reached its end position, slides with part of the contact surface of its shoulders 11 on the fitting 33 consisting of bearing material and with the other part of the contact surface of its shoulders 11 on the harder material of the pressure hull 19. It goes without saying that the surface which represents the firmer of the two said sliding surfaces on the pressure body, does not necessarily have to be an integral part of the pressure hull 19, but z. B. also by a in the broadest sense attached to the actual pressure body, further fitting can be formed (not shown here, but claim variant).
  • the roller or shoulders 11 of the roller are substantially harder or stronger than the bearing material of the fitting 33.
  • the sliding of the shoulders 11 on the fitting 33 of the bearing material leads to a positive at the relatively high pressure that is encountered here
  • This abrasion is introduced by the rotating roller in the surface area in which the roller with its shoulders 11 slides on the pressure body 19, and obviously fills the valleys of the surface roughness of the roller 9 on , It has been found that the abrasion can prevent effectively effective that it comes between the shoulders 11 of the roller 9 and the pressure body 19 to a seizure (local micro-welding and tearing) and thus destruction, as it is otherwise relatively quickly observed when steel slides under high surface pressure and speed on steel.
  • the fitting 33 is subjected to significantly less wear by the roller than when the roller is fully or substantially exclusively slid on the fitting 33.
  • the gap 20 or the gap-forming portion 20a can be designed so that the roller 9 in its End position a correspondingly higher pressure against the rail 2 and the pressure body 19 developed, resulting in a correspondingly higher, braking effect frictional force immediately results.
  • the ratio of the surface with which the shoulders 11 slide in the final position of the roller 9 on the bearing material of the fitting 33 to the surface with which the shoulders 11 slide on the pressure body requires careful adjustment to the individual case.
  • the surface with which the shoulders 11 of the roller 9 slide on the bearing material should not be unnecessarily large. Rather, it should be just so large that sufficient abrasion is generated to prevent between the shoulders 11 of the roller 9 and the Pressure body, where the greater part of the forces transmitted, seizure occurs.
  • the expert can easily determine by experiments, as the area ratios are to be selected in the specific case.
  • fittings 33 can be attached very easily.
  • a suitably directed bolt from the bearing material is used or-pressed.
  • the column 20 and the grooves 21 are milled into the pressure body 19.
  • the bearing pin is cut and thereby automatically receives the correct contour. Namely, a contour, which looks like when the again dismantled fitting Fig. 6 illustrated.
  • over-milling is taken to ensure that at least locally more than 180 ° of the total circumference of the bolt remain, which ensures that the bolt can not fall out of the cut by the over-drilled hole in the body.
  • roller 9 rotates counterclockwise during braking in upward direction and therefore in the lower of the two in Fig. 3 imaged gap 20 is pulled.
  • the elevator car In order to deactivate the braking or catching device after the deceleration of a downward movement of the elevator car, the elevator car is driven a bit far up in all embodiments.
  • the skew of the gap 20 and the groove 21 are selected and matched so that the roller does not slide along the guide rail during this upward movement of the elevator car, but is now driven inversely by it and in the direction of its inactive position in the area between the upward pointing back and the down-facing gap section rolls back.
  • the roller Once the roller has come close to its inactive position, it is retracted to its rest position (correspondingly connected solenoid) in good time before the roller is torn into the descending portion of the gap 20 from the inactive position of the roller and now there unintentionally brakes.
  • a recess 32 is provided to reduce the rigidity of the pressure body 19 in the lower region.
  • a correspondingly lower rigidity is effected in the section corresponding to an upward travel of the pressure body 19, and thus a lower contact pressure of the roller 9, resulting in a lower deceleration during braking.
  • the ramps are not mirror-symmetrical, but executed with a different pitch or length, which also sets the desired effect. The measures are generally useful, ie can be used profitably in all of the embodiments shown, if necessary.
  • the Fig. 10 illustrates the second aspect of the invention, which further develops this to a preferred embodiment, according to which one of the braking or catching acting for abutment on a guide rail 2 provided surface 43 with respect to the rail head 8 associated surface of the guide rail 2 is inclined.
  • the inclined surface 43 is designed here in the form of a friction lining 15. This is rigidly attached to the leg 17 of the pressure body 19.
  • the friction lining thus does not move with respect to the entire pressure body, ie it does not carry out a relative movement with respect to the leg 17 holding it, but moves with the leg 17.
  • it comes with fully expanded pressure body with its friction surface largely completely on the associated surface of the guide rail 2 to the plant, whereby optimal friction and loading conditions are achieved.
  • the inclination of the invention is particularly effective to advantage when the pressure body 19, the elasticity ensures the correct installation of the inclined surface at full load, not rigidly attached to the car, but as well as Fig. 11 shown.
  • the pressure body 19 is here, comparable to the saddle of a vehicle disc brake, floatingly mounted on the elevator car. Serve as a guide for the floating storage per brake or catching each two spaced apart from each other on the elevator car rail-like structure, here in the form of flat iron F, which form a substantially horizontally aligned rail pair, so to speak.
  • the pressure body 19 is provided at its upper and lower edge in each case with a groove N1 or N2 for engagement for the said flat iron, so that the pressure body can be inserted between the two flat iron.
  • Both grooves have, compared to the width of the flat iron, a certain lateral play on.
  • at least one of the two grooves N 1 and N 2 has a special design, namely, it runs altogether sufficiently obliquely. This takes into account the fact that the pressure body is elastically bent under the influence of the force with which the roller is drawn into the gap in the case of braking or catching, so that the two grooves respectively attached to the underside and the upper side do not be more aligned if no action is taken.
  • the oblique course or the helix angle ⁇ of the at least one groove is ideally chosen such that the groove still provides a precisely defined guide provided with a permissible clearance when the braking or catching device is inactive, namely because the lower edge of the left and the upper edge of the right Groove flank unfold a defined guiding effect.
  • the fact that the groove flanks are inclined, ensures that the pressure body can deform without hindrance, without affecting the leadership.
  • the inclined surface 43 is inclined by an angle ⁇ between 0.5 ° and 5 °.
  • the groove 21 does not necessarily have to be designed on the side of the pressure hull. Instead, the groove can also be made on the roll, where it is flanked on both sides by knurled peripheral portions of the roll.
  • the gap-forming portion 20a of the pressure body is then formed complementary in a corresponding manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Coating Apparatus (AREA)

Claims (21)

  1. Dispositif de freinage et/ou d'arrêt (14) pour une cabine d'ascenseur qui est guidée dans une cage le long de rails de guidages verticaux (2), comprenant un corps presseur (19) à fixer sur la cabine d'ascenseur, dont la portion (20a) formant un intervalle forme, en cas de montage conforme à sa destination et conjointement avec le rail de guidage qui lui est associé, une fente (20) dans laquelle un galet (9) et introduit en cas de freinage ou d'arrêt, ledit galet présentant une surface enveloppe qui sert de surface de friction (12) afin de tirer le galet (9) de manière fiable dans l'intervalle ou de le laisser rouler dans celui-ci, jusqu'à ce qu'il atteigne sa position finale, et des épaulements (11) qui, au moins dans la position finale et du fait de leur coulissement sur le corps presseur (15), engendrent la friction provoquant le freinage ou l'arrêt, alors que la surface de friction (12) est sensiblement dégagée vis-à-vis du corps presseur (19), dans lequel est prévue une butée qui limite la course sur laquelle le galet (9) est introduit dans l'intervalle (20) et impose ainsi respectivement une position finale pour le galet (9) et, dans sa position finale, le galet roule essentiellement sur le rail de guidage (2) et coulisse contre le corps presseur (19) ;
    caractérisé en ce que l'intervalle (20) est pourvu, dans la région de sa position finale et du côté du corps presseur (19), localement d'un doublage (33) en un matériau spécial pour palier, qui est ainsi conçu et agencé que le galet (9) coulisse, dans sa position finale avec ses épaulements (11) partiellement sur le matériau spécial et partiellement sur le matériau plus dur du corps presseur (19) qui présente le reste de la surface de coulissement.
  2. Dispositif de freinage et/ou d'arrêt selon la revendication 1, caractérisé en ce que le doublage (33) en matériau spécial est formé d'un métal non ferreux, de préférence d'un bronze spécial pour palier.
  3. Dispositif de freinage et/ou d'arrêt selon la revendication 1 ou 2, caractérisé en ce que le corps presseur (19) est en acier spécial.
  4. Dispositif de freinage et/ou d'arrêt selon l'une des revendications précédentes, caractérisé en ce que le galet (9), du fait de son coulissement sur le doublage (33) en matériau spécial pour palier, érode de façon conforme à sa destination du matériau spécial et l'entraîne jusque dans la région dans laquelle le galet (9) coulisse sur le corps presseur.
  5. Dispositif de freinage et/ou d'arrêt selon l'une des revendications précédentes, caractérisé en ce que, dans la région avec laquelle il roule sur le rail de guidage (2), le galet (9) porte un profil, en particulier sous la forme d'un rabattement, qui influence les rapports de friction de telle manière que, aussi longtemps jusqu'à atteindre sa position finale, le galet (9) roule sur le rail de guidage (2) et sur le corps presseur (19) jusqu'à courte distance avant la position finale.
  6. Dispositif de freinage et/ou d'arrêt selon la revendication 5, caractérisé en ce que le doublage (33) est ainsi conçu ou agencé que le rabattement (12) ne coulisse pas ou pas sensiblement sur le doublage (33).
  7. Dispositif de freinage et/ou d'arrêt selon l'une des revendications précédentes, caractérisé en ce que le doublage (33) en matériau spécial pour palier est constitué d'un goujon formé du matériau correspondant, lequel est maintenu sans possibilité de tourner dans un perçage de réception correspondant (33a) du corps presseur, et au moins dans la région dans laquelle le galet (9) coulisse conformément à sa destination sur le goujon, le goujon ainsi que le perçage de réception sont fraisés ou meulés de façon supplémentaire.
  8. Dispositif de freinage et/ou d'arrêt selon l'une des revendications précédentes, caractérisé en ce que la butée, qui limite la course sur laquelle le galet (9) est introduit dans l'intervalle (20) et impose ainsi respectivement une position finale pour le galet (9), est ainsi réalisée que l'érosion de matériau au niveau du doublage (33) en matériau spécial pour palier est au moins partiellement compensée du fait que le galet (9) est introduit quelque peu plus loin dans l'intervalle (20) entre le corps presseur (19) et le rail de guidage (2).
  9. Dispositif de freinage et/ou d'arrêt selon l'une des revendications précédentes, caractérisé en ce que le galet (9) présente sur les deux côtés, à côté de sa surface de friction (12) qui roule sur le rail de guidage (2), des épaulements (11) en retrait avec un diamètre plus petit que ladite surface de friction (12), et la portion (20a) du corps presseur (19) qui forme l'intervalle comporte une rainure (21) pour recevoir la surface de friction (12), prévue pour le contact avec le rail de guidage (2), du galet (9), ladite rainure étant ainsi conçue que, lorsque le galet (9) se trouve dans sa position finale, il existe un jeu ou un espace libre entre la surface de friction (12) du galet (9) et la rainure (21), de sorte que la surface de friction (12) ne présente vis-à-vis du corps presseur aucun ou essentiellement aucun contact de friction, et le galet (9) n'est au moins sensiblement freiné que par la friction de glissement entre les épaulements (11) et le corps presseur (19) ou respectivement le doublage (33).
  10. Dispositif de freinage et/ou d'arrêt selon l'une des revendications précédentes pour une cabine d'ascenseur qui est guidée dans une cage le long de rails de guidage verticaux (2), comprenant un corps presseur (19) à fixer sur la cabine d'ascenseur, dont la portion (20a) formant un intervalle, lors de son montage conformément à sa destination, forme conjointement avec le rail de guidage (2) qui lui est associé un intervalle (20) dans lequel un galet (9) et introduit en cas de freinage ou d'arrêt, dans lequel il est prévu une butée qui limite la course sur laquelle le galet (9) et introduit dans l'intervalle (20) et impose ainsi respectivement une position finale pour le galet (9), et dans sa position finale, le galet (9) roule sensiblement sur le rail de guidage (2) et coulisse sur le corps presseur (19) ;
    caractérisé en ce que l'une au moins des surfaces (par exemple 43) prévues sur les côtés du dispositif de freinage ou d'arrêt pour venir en contact contre un rail de guidage avec pour effet, conformément à sa destination, un freinage ou un arrêt, est disposée en oblique par rapport à la surface du rail de guidage (2) qui lui est associée lorsque le dispositif de freinage ou d'arrêt est inactif, de telle manière que cette surface (43), lorsque le dispositif de freinage ou d'arrêt est totalement activé, c'est-à-dire à bloc, est orientée parallèlement à la surface du rail de guidage (2) qui lui est associée et s'applique essentiellement contre celle-ci sur toute sa surface.
  11. Dispositif de freinage et/ou d'arrêt selon la revendication 10, caractérisé en ce que le corps presseur (19) est un corps polygonal, de préférence en forme de C ou en forme de cercle, fendu à un emplacement, qui est ainsi conçu que dans le cas de freinage ou d'arrêt, une branche (16) vient en contact avec une première surface fonctionnelle du rail de guidage (2) et une seconde branche (17) vient en contact avec une seconde surface fonctionnelle du rail de guidage (2), dans lequel le corps presseur (19) est élargi en tant que tel de manière élastique par l'introduction du galet (9) dans l'intervalle (20), et la valeur des forces d'élargissement détermine l'intensité des forces provoquant le freinage ou l'arrêt.
  12. Dispositif de freinage et/ou d'arrêt selon la revendication 11, caractérisé en ce que la mobilité nécessaire pour l'orientation de la surface (43) disposée en oblique est établie du fait que la surface (43) disposée en oblique se déplace, au cours de l'élargissement élastique du corps presseur (19), par rapport à la surface fonctionnelle associée du rail de guidage (2) conjointement avec la branche correspondante du corps presseur (19).
  13. Dispositif de freinage et/ou d'arrêt selon la revendication 12, caractérisé en ce que la surface disposée en oblique (43) forme un composant intégral du corps presseur (19) ou est reliée essentiellement rigidement avec le corps presseur (19).
  14. Dispositif de freinage et/ou d'arrêt selon l'une des revendications précédentes, en association avec la revendication 10, caractérisé en ce que la surface disposée en oblique (43) est disposée de telle manière et reliée au corps presseur (19) de telle façon que la surface disposée en oblique (43) ne s'applique que partiellement contre le rail de guidage (2) dans une première phase du cas de freinage ou d'arrêt, ce qui mène à une augmentation de l'effet de freinage ou d'arrêt, au moins aussi longtemps jusqu'à ce que la surface disposée en oblique (43) s'applique, dans une seconde phase du cas de freinage ou d'arrêt, essentiellement entièrement contre le rail de guidage (2).
  15. Dispositif de freinage et/ou d'arrêt selon l'une des revendications précédentes, en association avec la revendication 10, caractérisé en ce que le dispositif de freinage et/ou d'arrêt ne comprend ni ressort hélicoïdal ni rondelle-ressort.
  16. Dispositif de freinage et/ou d'arrêt selon l'une des revendications précédentes, en association avec la revendication 10, caractérisé en ce que la surface disposée en oblique (43) n'est pas le galet (9), mais la surface antagoniste (15) du corps presseur, qui coopère avec le galet (9) et qui agit sur le côté du rail de guidage (2) opposé au galet (9).
  17. Dispositif de freinage et/ou d'arrêt selon l'une des revendications précédentes, en association avec la revendication 10, caractérisé en ce que la surface disposée en oblique (43) est formée par une garniture (15), fixée sur le corps presseur (19), en un métal spécial pour palier, de préférence en bronze ou en laiton spécial pour palier.
  18. Dispositif de freinage et/ou d'arrêt selon l'une des revendications précédentes, caractérisé en ce que le corps presseur (19) est susceptible d'être monté flottant sur la cabine d'ascenseur.
  19. Dispositif de freinage et/ou d'arrêt selon la revendication 18, caractérisé en ce que le corps presseur (19) comprend, sur sa bordure supérieure et sa bordure inférieure telles que vues dans la situation de montage, des tronçons de guidage, de préférence sous la forme de rainures, pour le montage flottant du corps presseur (19) entre deux rails fixés sur la cabine d'ascenseur, de préférence sous la configuration de fers plats montés sensiblement horizontaux et parallèles.
  20. Dispositif de freinage et/ou d'arrêt selon la revendication 19, caractérisé en ce que les rainures sont ainsi conçues que, dans chaque situation du dispositif de freinage ou d'arrêt, elles garantissent son montage flottant de manière suffisamment exacte sans cependant entraver, dans le cas d'une activation du dispositif de freinage ou d'arrêt, la déformation élastique de son corps presseur.
  21. Dispositif de freinage et/ou d'arrêt selon l'une des revendications 18 ou 19, caractérisé en ce que l'une au moins des rainures, lorsque le dispositif de freinage d'arrêt est monté conformément à sa destination et est inactif, est orientée en oblique par rapport au tronçon de rail qui circule en elle-même, de telle façon que les parois latérales de deux rainures mutuellement opposées et servant au guidage sur le même rail sont essentiellement alignées l'une avec l'autre uniquement quand le corps presseur du dispositif de freinage ou d'arrêt a approximativement atteint sa déformation maximale prévue en fonctionnement conformément à sa destination.
EP07007905A 2007-04-18 2007-04-18 Dispositif de freinage ou d'arrêt avec rouleau tournant en partie sur un revêtement en bronze et avec surface de friction inclinée Active EP1982945B9 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT07007905T ATE486811T1 (de) 2007-04-18 2007-04-18 Brems- bzw. fangeinrichtung mit teilweise auf bronzebelag laufender rolle und schräg stehender reibfläche
DE502007005550T DE502007005550D1 (de) 2007-04-18 2007-04-18 Brems- bzw. Fangeinrichtung mit teilweise auf Bronzebelag laufender Rolle und schräg stehender Reibfläche
ES07007905T ES2353979T3 (es) 2007-04-18 2007-04-18 Dispositivo de frenado o aprehensión con rodillo que corre parcialmente sobre revestimiento de bronce y con superficie de fricción inclinada .
EP07007905A EP1982945B9 (fr) 2007-04-18 2007-04-18 Dispositif de freinage ou d'arrêt avec rouleau tournant en partie sur un revêtement en bronze et avec surface de friction inclinée
CN200880012697.7A CN101663221B (zh) 2007-04-18 2008-04-16 一种用于电梯轿厢的制动器
PCT/EP2008/003034 WO2008128689A2 (fr) 2007-04-18 2008-04-16 Dispositif de freinage ou blocage à galet circulant sur garniture partiellement en bronze et surface de frottement oblique
RU2009137552/11A RU2438961C2 (ru) 2007-04-18 2008-04-16 Тормозное или ловильное устройство с частично перемещающимся по бронзовой накладке роликом и косо расположенной поверхностью трения

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07007905A EP1982945B9 (fr) 2007-04-18 2007-04-18 Dispositif de freinage ou d'arrêt avec rouleau tournant en partie sur un revêtement en bronze et avec surface de friction inclinée

Publications (3)

Publication Number Publication Date
EP1982945A1 EP1982945A1 (fr) 2008-10-22
EP1982945B1 EP1982945B1 (fr) 2010-11-03
EP1982945B9 true EP1982945B9 (fr) 2011-02-02

Family

ID=38523505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07007905A Active EP1982945B9 (fr) 2007-04-18 2007-04-18 Dispositif de freinage ou d'arrêt avec rouleau tournant en partie sur un revêtement en bronze et avec surface de friction inclinée

Country Status (7)

Country Link
EP (1) EP1982945B9 (fr)
CN (1) CN101663221B (fr)
AT (1) ATE486811T1 (fr)
DE (1) DE502007005550D1 (fr)
ES (1) ES2353979T3 (fr)
RU (1) RU2438961C2 (fr)
WO (1) WO2008128689A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3353105T3 (pl) * 2015-09-23 2020-06-15 Inventio Ag Ślizgowe urządzenie chwytające do instalacji dźwigowej
DE202019105584U1 (de) * 2019-10-10 2019-10-22 Wittur Holding Gmbh Auslöseeinheit zum Betätigen einer Aufzugbremsvorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT376952B (de) 1983-03-21 1985-01-25 Otis Elevator Co Bremsfangvorrichtung
FI103962B (fi) 1996-11-07 1999-10-29 Kone Corp Tarraaja
ES1043007Y (es) * 1998-12-02 2000-05-01 Dominguez Luis Fernando Simal Elemento elastico para frenos de sistemas guiados.
MY192706A (en) * 2004-12-17 2022-09-02 Inventio Ag Lift installation with a braking device, and method for braking and holding a lift installation
AT501415B1 (de) 2005-01-21 2009-01-15 Wittur Gmbh Brems- bzw. fangeinrichtung für eine aufzugskabine

Also Published As

Publication number Publication date
RU2438961C2 (ru) 2012-01-10
RU2009137552A (ru) 2011-04-20
ES2353979T3 (es) 2011-03-08
CN101663221A (zh) 2010-03-03
WO2008128689A3 (fr) 2008-12-24
WO2008128689A2 (fr) 2008-10-30
CN101663221B (zh) 2013-01-30
DE502007005550D1 (de) 2010-12-16
EP1982945A1 (fr) 2008-10-22
ATE486811T1 (de) 2010-11-15
EP1982945B1 (fr) 2010-11-03

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