EP2303748B1 - Fangvorrichtung mit kraftspeicherelement - Google Patents

Fangvorrichtung mit kraftspeicherelement Download PDF

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Publication number
EP2303748B1
EP2303748B1 EP08775028.7A EP08775028A EP2303748B1 EP 2303748 B1 EP2303748 B1 EP 2303748B1 EP 08775028 A EP08775028 A EP 08775028A EP 2303748 B1 EP2303748 B1 EP 2303748B1
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EP
European Patent Office
Prior art keywords
force
brake
store element
force store
safety
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EP08775028.7A
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German (de)
English (en)
French (fr)
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EP2303748A1 (de
Inventor
Benoit LÉGERET
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Inventio AG
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Inventio AG
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Priority to PL08775028T priority Critical patent/PL2303748T3/pl
Publication of EP2303748A1 publication Critical patent/EP2303748A1/de
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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

Definitions

  • the present invention relates to a safety gear, which is for example part of a safety device for an elevator device.
  • the safety device serves to immobilize an elevator car on a guide rail.
  • the present invention relates to a safety device with a corresponding safety device, an elevator device with a corresponding safety device and a method for actuating a safety device according to the invention.
  • An elevator device generally comprises an elevator cage and at least one counterweight, which are moved in opposite directions in an elevator shaft.
  • the elevator car and the at least one counterweight run here in or along guide rails.
  • an elevator device is usually equipped with a safety device which is part of a safety device.
  • the safety device engages the guide rails of the elevator car and / or the counterweight.
  • the speed of movement of the elevator car or the counterweight is slowed down or reduced by setting the safety gear on the guide rail to zero.
  • the triggering of the braking or settling takes place by means of a speed limiter device which constantly monitors and limits the speed of the elevator car or of the counterweight.
  • the governor rope actuates the lever mechanism on the elevator car and engages the safety gear by the governor rope exerting a pull on the safety gear arranged on the elevator car via the linkage and lever mechanism.
  • This train in turn holds one or two wedge-shaped and roller-mounted brake pads of the safety gear in a first (friction) contact position on the guide rail zoom.
  • a spring column formed from disc springs is activated, which is arranged opposite the brake pads in a pincer-like double lever construction. This ensures that the tensile force in the linkage and lever mechanism is not the actual braking force, but only the triggering force for the safety gear.
  • the effective braking force is exerted by the spring column.
  • the same operation applies to the counterweight.
  • the monitoring of the car speed can also be done electronically, for example, and the safety gear can be triggered electromagnetically, for example.
  • the traditional mechanical speed limiter and the traditional governor rope are omitted in this latter variant.
  • a safety device with a similarly constructed safety gear discloses the patent US 2,581,297 in which the braking force is generated by a spiral spring.
  • the mentioned disadvantages could be eliminated according to the invention on the one hand by the arrangement of at least two power storage elements instead of only one and on the other hand by optimizing the overall course of the force-displacement characteristic.
  • the force storage elements to choose so different that complement their individual characteristics in a certain way.
  • a the outer diameter of the force storage elements superior disc is arranged. This disc hits, after a certain degree of compression of the first, weaker force storage element, on the front edge of a cylindrical and one-sided open housing, which surrounds the weaker force storage element. In this way, according to the invention, it is achieved that both energy storage elements are protected because they only work in an area assigned to them.
  • springs As energy storage elements all kinds of springs come into consideration. This may be, in particular, disc springs, which optionally form so-called spring columns with serially or also parallelly assembled disc spring packages. However, there are also directionalenteller-, spiral, leaf or gas springs (generally pneumatic) or hydraulic (for example, valve chamber springs) or combinations of all listed types of springs into consideration.
  • Disc springs basically have a degressive characteristic, i. with increasing deflection, the spring rate (spring constant, energy storage rate) decreases exponentially.
  • the spring rate spring constant, energy storage rate
  • such disk spring arrangements or force storage elements are preferred which have a progressive characteristic (exponentially increasing spring rate).
  • the resulting characteristic curve of the energy storage element compound gives rise to a preferably progressive, but at least one completely or even only partially linearly increasing characteristic curve.
  • the resulting characteristic of the energy storage element composite may be unsteady. That is, from the point in which the end edge of the cylindrical housing impinges on the disk and thus stops the further compression of the first, weaker energy storage element, a sudden drop or increase in the brake force value of the safety gear can occur.
  • a preferred embodiment variant of a safety gear according to the invention makes it possible to connect the second, stronger energy storage element with its characteristic seamlessly to the characteristic of the first, weaker energy storage element, so that a continuous overall characteristic of the energy storage element composite results.
  • the ratio of the force storage elements can be chosen so that only the first, weaker force storage element is used, for example, in a faulty control.
  • the continuity of the overall characteristic can be technically realized by the second power storage element has such a high spring rate, which allows only from the impingement of the end edge of the cylindrical housing on the disc compression of this energy storage element.
  • the absolute amount of the absorbed compressive force - and the resulting return spring force - with which the first force storage element exits is identical to the entry value of the second force storage element.
  • the continuity, but also an increasing monotony of the overall characteristic curve can also be realized by at least partially overlapping the work areas of the energy storage elements, so that the sum of the individual values Characteristic curves results in the sought overall characteristic curve.
  • an influence on the overall characteristic can be achieved by the cylindrical housing and / or the disc are designed resiliently / is.
  • the cylindrical housing in turn may optionally be formed of a disc and a tube.
  • the disk can be identical to the disk which separates the two power storage elements.
  • the cylindrical housing or tube in turn, may surround the force storage element outside, but may also be formed on the inside as a spacer sleeve. For the weaker force storage element is, no matter whether inside or outside, provided a travel limit.
  • a further preferred embodiment of a safety device comprises a pretensioning device for the energy storage elements.
  • This can be realized, for example, in a simple and known manner by means of a screw in a threaded sleeve, which are arranged on a spring bolt so that rotations of the screw compress or decompress the displaceably mounted on the spring bolt force storage elements.
  • this known biasing device brings in connection with the inventive arrangement of at least one weaker and a stronger force storage element with it that adjusting movements of the biasing device exclusively or predominantly act only on the weaker force storage element.
  • a bias voltage for the second, stronger power storage element is, if the power storage elements have separate, adjoining work areas and not overlapping, only possible when the cylindrical housing impinges on the disk. And this in turn would make the first, weaker energy storage element no longer in the range of any bias, but above the maximum provided stroke.
  • a further preferred embodiment of a safety device provides a spring bolt which forms different outside diameters and thus stops.
  • a biasing device that seizes and tensions separately only the second, stronger force storage element, then a desired amount of bias can be achieved exclusively for this second, stronger force storage element, for example, by spacers are used. These spacers abut after releasing the biasing device to the stop. The spacers or the stop limit thus decompression, but not compression movements of the force storage element.
  • the spacers are preferably designed sickle-shaped and can be plugged onto the respective outer diameter of the spring bolt. against unintentional falling out the spacers are secured with a sheath.
  • the inventive use of a biasing device also offers the advantage that in a possible disassembly, the force storage elements can be controlled exempt from their tension.
  • the bias of the first, weaker power storage element is then carried out after carried out bias in the manner previously described the second, stronger power storage element, in a known manner by the operation of the screw that summarizes the spring pin.
  • the spring bolt can optionally also be designed so that it forms a continuous, identical outer diameter, but detent positions for the disc, in the latter can be screwed bayonet-like manner.
  • the axial adjustability of the disc along the longitudinal axis of the spring bolt, or / and also an adjustability in the same direction of the cylindrical housing leads to a further inventive embodiment variant of a safety gear in which the distance between the cylindrical housing and the disc can be adjusted.
  • the stroke of the first force-storing element can optionally be set in addition to the previously described bias by the screw.
  • a further variant of the invention provides for three different force storage elements.
  • previous bias of the then two stronger power storage elements may optionally be provided corresponding biasing devices and a spring bolt, which then forms three different outer diameter.
  • the weakest force storage element is arranged on the largest outer diameter, the middle on the middle and the strongest energy storage element on the smallest outer diameter.
  • the safety device preferably generates the braking force by means of a so-called spring column, which is formed from individual disk springs arranged on the spring bolt.
  • the disc springs may be arranged in series or in parallel or in two or three-arrays in series or in parallel.
  • the individual disc springs are preferably made of stainless and heat-resistant spring steels.
  • copper (CuSn 8, CuBe 2) and nickel alloys (Nimonic, Inconel, Duratherm) or chromium-vanadium alloys or porcelain are also suitable.
  • disc springs of group 2 according to DIN 2093 are preferred, but it is also the use of Disk springs of Group 1 or Group 3 into consideration.
  • the surface roughness of the disc springs is preferably Ra ⁇ 6.3.
  • a safety device can be arranged both on the elevator car and on the counterweight.
  • the safety gear may e.g. be placed at the bottom, but also at the top.
  • the safety gear described above has over safety devices which act on the support means itself, the advantage that regardless of a support means breakage or regardless of where the support means breaks, always a safe emergency braking can take place.
  • a safety gear according to the invention provides improved hysteresis properties and easier disassembly when releasing the safety gear after use or repair or maintenance work by newly dividing a travel area into two or more travel areas.
  • a safety gear according to the invention can also be transferred to inclined elevators, drilling rigs, storage and retrieval machines and other passenger or material handling installations. Furthermore, it is suitable not only for the interception of downward movements of the elevator car, but also for Upward movements, which may be caused by malfunctions, for example.
  • the present application discloses at least two force storage elements connected in series, such as spring columns formed of disc springs, which are lined up on a bolt.
  • the inventive principle can also be realized with power storage elements that wrap themselves.
  • the weaker or the stronger force storage element having an inner diameter which receives the other force storage element.
  • Fig. 1 shows an elevator device 100 with a movable in an elevator shaft 1 elevator car 2, which is connected via a support means 3 with a counterweight 4.
  • the support means 3 is driven during operation with a traction sheave 5 of a drive unit 6.
  • the elevator car 2 and the counterweight 4 are guided by means of guide rails 7a and 7b extending over the shaft height.
  • the elevator device has a top floor with a top floor door 8, a second upper floor with a second upper floor door 9, further floors with further floor doors 10 and a lowest floor with a lowermost floor door 11 on.
  • the drive unit 6 and a speed limiter 13 is arranged, which shuts down the elevator car 2 at different speeds.
  • a double lever 14a and 14b is arranged on two opposite sides of the elevator car 2, which are each hinged to the elevator car 2 at a pivot point 15a and 15b.
  • the double lever 14a is fixedly connected to a governor rope 19 of the speed limiter 13.
  • the governor rope 19 is guided in the shaft head 12 via a pulley 58 of the speed limiter 13 and in a shaft pit 20 via a deflection roller 21.
  • the elevator car 2 drives the governor rope 19, the speed of the elevator car 2 is monitored by the speed limiter 13 via the governor rope 19.
  • the speed limiter 13 blocks the cable pulley 58, the elevator car 2 dragging the governor rope 19 over the pulley 58. Due to the friction on the pulley 58, the governor rope 19 exerts on the double lever 14a a tensile force according to the direction of the arrow 26 upwards. So operated, the double lever 14a rotates about a pivot point 15a. As a result, on the one hand, a train is transmitted upwards via a linkage 17a to a safety gear 16a.
  • the double lever 14a transmits additionally by means of a fixed, approximately 90-degree angle, in its vertex in the pivot point 15a is hinged to the elevator car 2, a pressure movement on a connecting rod 18th
  • This connecting rod 18 presses on the further, second double lever 14 b, which, similar to the first double lever 14 a is formed from a fixed, approximately 90-degree angle, which is articulated at its apex in the pivot point 15 b to the elevator car 2.
  • the pressure of the connecting rod 18 thus generates a rotation of the double lever 14b and this in turn is transmitted with a linkage 17b as a pulling movement on the second safety gear 16b.
  • the illustrated safety device 200 thus includes the speed limiter 13 and at least one double lever 14, which triggers the safety gear 16 by means of the linkage 17 by a tensile force.
  • the endless governor rope 19 is tensioned by means disposed in the shaft pit 20 guide roller 21, wherein a roller shaft bearing 22 is hinged at one end to a pivot point 23 and at the other end carries a tension weight 24.
  • the suspension means 3, as well as the governor rope 19, may be a steel wire or aramid rope, a belt or a wedge or V-ribbed belt.
  • FIG. 2 schematically shows a sectional view of a safety gear 16, which corresponds to the current state of the art.
  • a force storage element 27 is formed as a spring column, in each case a pair of disc springs 34 in series and thus formed disc spring pairs are then in turn lined up in parallel on a pin 33 with a longitudinal axis 55.
  • the force storage element 27 can be prestressed by means of a pretensioning screw 35 in a threaded bush 36 and a disk 37.
  • the bolt 33 is in eyelets 32a, 32b of brake levers 29a, 29b taken, the latter being in a symmetrical pair in each case Rotary bearings 31a, 31b are mounted and designed as a double lever.
  • an expanding force of the force storage element 27 acts on the opposite leg ends of the double-lever pair as a pressing force F, which is formed from the sum of the absolute amounts of the force vectors F 1 and F 2 .
  • the pressure force F is the contact pressure with which two brake pads 28a, 28b with brake pads 38a, 38b grip the guide rail 7.
  • the brake pads 28a and 28b which is not apparent in this view, wedge-shaped and each stored in a roller cage 39a and 39b. This ensures that the in Fig. 1 described tensile or compressive force of the linkage 17 only as triggering, stimulating force for the safety gear 16 is sufficient by one or both pads are kept in a starting braking position.
  • the actual braking force F of the energy storage element 27 - as a spring-assisted reaction to its compression according to Hooke's Law - then builds up automatically due to the friction of the brake pad 28 on the guide rail 7 and due to the wedging action of the brake pad 28.
  • Fig. 3 schematically shows a sectional view of an embodiment of a safety gear 16 c according to the invention.
  • Catching device 16 shown not a single, single-stage power storage element 27, but a Kraft Grandeetti Kompositum 30, which is formed from a first power storage element 27a and a second force storage element 27b.
  • the first force storage element 27a is a spring column made of disc springs 34, which are lined up as a pair of disc spring parallel to the bolt 33.
  • the second force storage element 27b forms a spring column of disc springs 34, which are lined up as a plurality of serial three-way arrangements in parallel on the bolt 33.
  • the Frame of the invention are very different arrangements of disc spring assemblies, be it in series or parallel or even different arrangements of force storage elements. That is, there are also other types of springs, such as spiral, leaf, fferenteller- or gas springs or combinations thereof into consideration.
  • the energy storage element composite 30 is formed from two or more energy storage elements 27 which differ or supplement one another in the manner according to the invention in terms of their spring rate and characteristic curve.
  • the first force storage element 27a is gripped by a cylindrical housing 40. After a defined degree of compression of this energy storage element 27a, an end edge 41 of the cylindrical housing 40 presses on a disk 37a arranged between the energy storage elements 27a and 27b. As a result, as the degree of compression of the energy storage element composite 30 increases, compression of the first energy storage element 27a begins and an exclusive compression of the second energy storage element 27b begins, which here - as shown - more and stronger disc spring packages than the energy storage element 27a and thus also a higher spring rate having.
  • Another, not shown in this figure, but still inventive embodiment variant provides in addition to the previously described an adjustment possibility of the maximum compression of the first, weaker power storage element 27a by a distance 42 between the end edge 41 of the cylindrical housing 40 and the disc 37a regulated can be.
  • This can be done independently of the bias by means of the screw 35 in the threaded sleeve 36, with a further thread adjustment for the cylindrical housing 40.
  • Another adjustment possibility of the distance 42 may be that the disc 37a is connected to the cylindrical housing by means of adjustable detent positions so that compression of the force storage element 27a is still possible up to a value equal to approximately zero of the distance 42, but an increase in the value of the distance 42 over the desired value of the bias voltage this force storage element 27a addition not.
  • a further and preferred embodiment of a safety device provides an adjustability of the disc 37a.
  • this adjustability is configured in such a way that the disk 37a can not move to the left, to the weaker force storage element 27a beyond defined and adjustable end positions.
  • the disc 37a follows unhindered the pressure of an end face 44 of an outermost cup spring package 43 of the force storage element 27a or - depending on the design of the spring rate difference between the force storage element 27a and the force storage element 27b - the pressure of the front edge 41 of the cylindrical housing 40.
  • FIGS. 3a and 3b show by way of example how the inventive feature of the separate prestressing of the stronger power storage element 27b can be technically realized.
  • the bolt 33a has a smaller diameter along the extension of the force storage element 27b than along the extension of the force storage element 27a and thus forms a stop 47 for the disk 37a.
  • a tensioning device 48 applied to the disc 37a and the eyelet 32b or, as shown, on the disc 37a and a bolt end 46, during assembly of the second force storage element 27b, its bias can be brought to a desired level and further disks as desired 45 are used, which are formed sickle-shaped and are placed on the smaller diameter of the bolt 33 a.
  • the tensioning device 48 can be removed and the force storage element 27b has the desired degree of bias due to the thickness of the disc 37a plus the thickness or thicknesses of the crescent-shaped disc 45 or the crescent-shaped discs 45.
  • This technical embodiment described requires that the inner diameter of the first force storage element 27a is larger than the inner diameter of the second force storage element 27b. To protect against accidental falling out the crescent-shaped discs 45 can be wrapped together with the disc 37a.
  • the stop 47 may also be formed by the bolt consists of two parts that are screwed.
  • the discs 45 need not be sickle-shaped, they may be like the disc 37 a be full. This may be for a higher uptake of In the discs 37a and 45 occurring shear forces be advantageous.
  • FIGS. 4 is an exemplary characteristic compilation of the energy storage element composite 30, ie the individual characteristics of the first energy storage element 27a and the second energy storage element 27b according to Fig. 3 shown.
  • a path s (compression) equal to zero does not also correspond to a compressive force F equal to zero.
  • This initial force, which is necessary to excite a spring is generally the so-called breakout force. In the present case, however, it is a bias voltage V which superimposes it.
  • the characteristic of the energy storage element 27a assigns an increasing value for the pressure force F to each increasing value for the path s. It is therefore continuous in itself. In addition, it is progressive, ie when the path traveled, the pressure force increases not only linear but in a disproportionately (exponentially) increasing ratio.
  • the characteristic in this case is a curve or a parabola.
  • the dashed line which continues the characteristic curve of the force storage element 27a, illustrates how the force storage element would continue to behave if the end edge 41 of the cylindrical housing 40 did not hit the disc 37a at point S 1 .
  • the characteristic curve of the stronger force storage element 27b is also continuous and progressive per se and would start with a higher pressure force without the upstream connection of the weaker energy storage element 27a to the point S 1 according to the dashed curve. From the point S 1 , which corresponds to the contact of the front edge 41 with the disc 37 a, the pressing force F drops to a lower value than just before. The entire characteristic curve for the energy storage element Kompositum 30 is thus unsteady.
  • the Fig. 4b shows a continuous course of the entire characteristic curve of a force storage element compound 30 '. As shown, this can be accomplished by intersecting a characteristic curve 27a 'and a characteristic curve 27b'. This, in turn, would mean that, even before the cylindrical housing 40 terminates the working area of a first force storage element 27a ', a second force storage element 27b' begins its work. This results in a common working area S 2 -S 1 . Technically, this can for example be realized by the first force storage element 27a 'from the point S 2 has a linear characteristic, or even has a total of a linear characteristic.
  • the characteristic curve of the second, stronger force storage element 27b ' can also be linear from the point S 2 up to the point S 1 , but opposite to the linearity of the characteristic of the first energy storage element 27 a', so that the Sum of these two linear ranges gives a resulting characteristic in a desired range.
  • the continuous characteristic can also be achieved by the work area of the second force storage element 27b 'seamlessly begins where the work area of the force storage element 27a' stops, ie the energy storage elements are so closely matched by their spring rates that at the completion of the compression of first force storage element 27a ', the second force storage element 27b' takes over the same amount of force through the cylindrical housing 40. This would represent graphically that the point S 2 coincides with the point S 1 on a continuous characteristic curve.
  • FIG. 4c an overall characteristic curve of a force storage element compound 30 "is shown, which is composed of a respective linear characteristic curve for the energy storage element 27a" and for the energy storage element 27b "The transition to the higher spring rate of the second energy storage element 27b" manifests itself in a kink of the overall characteristic curve in FIG Point S 1 .
  • the dashed line represents the hysteresis curve of the force storage element compound 30 ".
  • Fig. 5 shows schematically in a sectional view a further inventive embodiment of a safety gear 16e according to the invention.
  • the energy storage element composite 30a is formed from a first energy storage element 27a, a second energy storage element 27b and a third energy storage element 27c.
  • the plate springs 34 they form with pairs, which are each formed of a plate spring 34, the first, weakest force storage element 27 a.
  • the second, middle force storage element 27b is made of a double and the third, strongest force storage element 27c formed from a triple arrangement.
  • only the same plate spring 34 can be used in all three power storage elements. However, the invention does not provide this, but only three in their totality different force storage elements 27a-27c.
  • the cylindrical housing 40 meets in contrast to the previously described Fig. 3 not directly on the disc 37a, but for the time being on another cylindrical housing 40a, which surrounds the second force storage element 27b. As the degree of compression increases, this further cylindrical housing 40a first strikes the disc 37a.
  • the force-displacement curve thus takes place cascade-like and according to the invention in one of the in the FIGS. 4 shown modes, individually or in combination, but only extended by one more level.
  • Fig. 5a shows schematically in a sectional view a further inventive embodiment of a safety gear 16f according to the invention.
  • the energy storage element composite 30 b is formed from a first energy storage element 27 d, a second energy storage element 27 e and a third energy storage element 27 f.
  • the force storage element 27d is the weakest, because it is formed from the smallest and thinnest disc springs 34a.
  • the power storage element 27f is the strongest, because the individual plate springs 34c are the largest or the thickest and are at the same time lined up in a three-way arrangement on the bolt 33b.
  • the energy storage element 27e is in terms of its properties and spring rate between them.
  • the arrangement of these three force storage elements 27d-27f is arbitrary.
  • the weakest force storage element 27d rests against the eyelet 32b or against the ring 49b.
  • the ring 49b simultaneously forms the cylindrical housing 40b surrounding the first force storing element 27d.
  • the weakest force storage element 27d in the arrangement shown here is arranged on the (right) side towards the eyelet 32b, the compression movement of the entire energy storage element compound 30b also begins on this side, in contrast to the previously described design variants.
  • the safety gear 16f shown here also has the bolt 33b, which has a different diameter for each individual energy storage element 27d-f. In this way it is possible, with appropriate clamping devices and the selection of a corresponding thickness of a housing wall 50 of the cylindrical housing 40c and a corresponding thickness of the disc 37a to achieve a bias for those power storage elements (27e and 27f), which are stronger than the weakest force storage element 27d.
  • the pre-tensioning device 36 known in the prior art would bias only or most of all the weakest force storage element 27d by means of the screw 35 (see there) acting on the entire force storage element composite 30b.
  • This well-known, in the Fig. 3 shown biasing device 36 is in the present Fig. 5a not shown, but you may imagine them on the opposite side of the eyelet 32b of the bolt 33b. In any case, their presence makes clear that each of the three force storage elements 27d-27f, just the weakest force storage element 27d can be biased. Thus, it is not necessary here for the weakest force storage element 27d to provide a separate biasing possibility analogous to the embodiments for the stronger force storage elements 27e and 27f.
  • the force storage element consists of disc springs, so can during the compression of the first force storage element 27d and also simultaneously incipient compression of the second, middle energy storage element 27e (overlapping characteristics such as in Fig. 4b ) occur that the outermost plate spring 34a or the subsequent or the subsequent disc springs fall from their leadership, in the Meaning that they fall between a gap between a stop 47a and the wegged Wegten end face of the cylindrical housing 50.
  • spacers 51a and 51b may be provided, which slide along. They are a bit wider than the possible gap described above, which therefore can not arise at all.
  • the Fig. 5b shows a further inventive embodiment variant of a safety gear 16g, which has a bolt 33c with along the longitudinal axis 55 extending groove profiles 52.
  • web profiles 53 are formed which, with an outer edge 56, still correspond to an outer diameter 0 of the bolt 33c.
  • the plate spring 34a is still performed, even if the disc 37b and a spacer sleeve 57 (the previously cylindrical housing 40 is shown in this embodiment as a disc and a sleeve) due to the compression of the central energy storage element 27e to the left move.
  • An analogous configuration, only with a deeper groove profile 52a, is provided between the middle force storage element 27e and the strongest force storage element 27f.
  • the Fig. 5c shows a sectional view along the section axis AA from the Fig. 5b ,
  • the disk 37b forms along its respective inner diameter at least two, preferably four approximately diametrically opposite arranged segment pieces 54, which run along in the respective groove profile 52.
  • the rear end face of the segment piece 54 is thus the contact surface to the respective stop 47 a or 47b, which is no longer fully formed in this embodiment, but only to a certain percentage of the full extent.
  • This further embodiment according to the invention of the bolt 33c with web profiles 53, groove profiles 52 and 52a and segment pieces 54 running in them has opposite to in Fig. 5a shown solution against the Ausder-leadership-falling of the disc springs the advantage that length is saved, ie a larger proportion of the total path of the energy storage element composite 30b is utilized.
  • FIGS. 3 to 5 disclosed inventive features, although described only to the respectively illustrated embodiment variant, can be combined with each other.
  • FIGS. 4 shown characteristic combinations, the corresponding only there in connection with a first and a second power storage element Fig. 3 has been shown, optionally for the second and the third force storage element from the Figures 5 possible.
  • Fig. 3 described adjustment option of the distance 42 readily in the embodiment variant according to Figures 5 realizable.
  • Fig. 3a shown separate Vorspannier the stronger power storage element is - with corresponding fixtures - on the design variant according to Fig. 5a to a person skilled in the art.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Springs (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP08775028.7A 2008-07-11 2008-07-11 Fangvorrichtung mit kraftspeicherelement Active EP2303748B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08775028T PL2303748T3 (pl) 2008-07-11 2008-07-11 Urządzenie chwytające z elementem akumulatora energii

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/059111 WO2010003466A1 (de) 2008-07-11 2008-07-11 Fangvorrichtung mit kraftspeicherelement

Publications (2)

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EP2303748A1 EP2303748A1 (de) 2011-04-06
EP2303748B1 true EP2303748B1 (de) 2013-06-12

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US (1) US8662264B2 (ko)
EP (1) EP2303748B1 (ko)
KR (1) KR101450953B1 (ko)
CN (1) CN102089232A (ko)
AU (1) AU2008359040B2 (ko)
BR (1) BRPI0822936A2 (ko)
CA (1) CA2729872C (ko)
ES (1) ES2425488T3 (ko)
HK (1) HK1156291A1 (ko)
PL (1) PL2303748T3 (ko)
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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI125134B (fi) * 2010-04-12 2015-06-15 Kone Corp Hissi
WO2012138538A2 (en) * 2011-04-04 2012-10-11 Dematic Accounting Services Gmbh Aisle emergency brake for rail-guided vehicle
SE538974C2 (sv) * 2013-12-03 2017-03-07 Texo Application Ab Nödstoppsanordning för skyttel, samt lagersystem med skenor och skyttel
DE102014206461A1 (de) * 2014-04-03 2015-10-08 Thyssen Krupp Elevator Ag Aufzug mit einer Bremsvorrichtung
MY179334A (en) * 2014-08-26 2020-11-04 Honda Motor Co Ltd Cushion pin
US11167954B2 (en) 2015-08-24 2021-11-09 Adaptive Concepts Ltd. Compact portable lift assembly
DE102017209888A1 (de) * 2017-06-12 2018-12-13 Thyssenkrupp Ag Bremse für eine Aufzugsanlage
KR102503286B1 (ko) * 2018-05-08 2023-02-23 세메스 주식회사 타워 리프트
CN111847184B (zh) * 2020-07-30 2021-11-02 冯永芬 一种施工电梯紧急制动装置
AU2022251678A1 (en) * 2021-03-31 2023-10-12 Inventio Ag Brake system for an elevator
US11975945B1 (en) 2022-11-28 2024-05-07 Otis Elevator Company Frictionless safety brake actuator

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581297A (en) * 1949-07-20 1952-01-01 Westinghouse Electric Corp Elevator safety device
US2716467A (en) * 1952-10-07 1955-08-30 Watson Elevator Company Inc Elevator car flexible guide clamp safety
US3830344A (en) * 1973-02-15 1974-08-20 Reliance Electric Co Brake and control therefor
US5197571A (en) * 1991-06-03 1993-03-30 Burrell Michael P Self centering elevator cable safety brake
CA2072187C (en) * 1992-06-23 1996-09-03 Dermot Camack Emergency braking systems for hoists
JPH06191759A (ja) * 1992-12-25 1994-07-12 Hitachi Ltd エレベータの非常止め装置
US5511868A (en) * 1994-10-12 1996-04-30 Caterpillar Inc. Booster recoil mechanism for endless track machine
JPH1053382A (ja) * 1996-08-07 1998-02-24 Toshiba Corp エレベータ用電磁ブレーキ
KR19980065788U (ko) * 1997-05-02 1998-12-05 송명석 가변강성도 코일스프링
JP2001002342A (ja) 1999-06-21 2001-01-09 Toshiba Elevator Co Ltd エレベーター用非常止め装置
DE50205013D1 (de) * 2001-09-28 2005-12-29 Inventio Ag Einrichtung zum Sperren einer Fangvorrichtung für eine Aufzugseinrichtung
EP1298083B1 (de) 2001-09-28 2005-11-23 Inventio Ag Einrichtung zum Sperren einer Fangvorrichtung für eine Aufzugseinrichtung
DE20204321U1 (de) * 2002-03-19 2002-05-29 Leica Microsystems Ag, Heerbrugg Federelement
CA2545380A1 (en) * 2004-03-29 2005-10-06 Mitsubishi Denki Kabushiki Kaisha Actuator driving method and actuator driving circuit
US7350774B2 (en) * 2004-09-07 2008-04-01 Danly Iem, Llc Long travel, high force combination spring
DE202004017585U1 (de) 2004-11-12 2005-01-20 Hydraulik-Liftsysteme Walter Mayer Gmbh Geführte Hebeeinrichtung mit Festhalte- und Fangvorrichtung
JP4854954B2 (ja) * 2004-12-07 2012-01-18 三菱電機株式会社 エレベータの非常止め装置

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HK1156291A1 (en) 2012-06-08
ZA201100288B (en) 2012-02-29
ES2425488T3 (es) 2013-10-15
CA2729872A1 (en) 2010-01-14
CN102089232A (zh) 2011-06-08
PL2303748T3 (pl) 2013-11-29
AU2008359040B2 (en) 2014-11-06
CA2729872C (en) 2015-10-20
BRPI0822936A2 (pt) 2015-06-23
AU2008359040A1 (en) 2010-01-14
KR101450953B1 (ko) 2014-10-15
WO2010003466A1 (de) 2010-01-14
EP2303748A1 (de) 2011-04-06
KR20110028500A (ko) 2011-03-18
US20110155523A1 (en) 2011-06-30
US8662264B2 (en) 2014-03-04

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