EP2346768B1 - Courroie de traction - Google Patents

Courroie de traction Download PDF

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Publication number
EP2346768B1
EP2346768B1 EP09748338A EP09748338A EP2346768B1 EP 2346768 B1 EP2346768 B1 EP 2346768B1 EP 09748338 A EP09748338 A EP 09748338A EP 09748338 A EP09748338 A EP 09748338A EP 2346768 B1 EP2346768 B1 EP 2346768B1
Authority
EP
European Patent Office
Prior art keywords
contact
strand
supporting belt
strands
recess
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.)
Not-in-force
Application number
EP09748338A
Other languages
German (de)
English (en)
Other versions
EP2346768A1 (fr
Inventor
Mirco Annen
Stephan Jans
Hans Kocher
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.)
Inventio AG
Original Assignee
Inventio 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 Inventio AG filed Critical Inventio AG
Priority to EP09748338A priority Critical patent/EP2346768B1/fr
Publication of EP2346768A1 publication Critical patent/EP2346768A1/fr
Application granted granted Critical
Publication of EP2346768B1 publication Critical patent/EP2346768B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/592—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connections to contact elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/062—Belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/064—Power supply or signal cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings
    • B66B7/085—Belt termination devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
    • B66B7/1207—Checking means
    • B66B7/1215—Checking means specially adapted for ropes or cables
    • B66B7/1223—Checking means specially adapted for ropes or cables by analysing electric variables
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/22—Flat or flat-sided ropes; Sets of ropes consisting of a series of parallel ropes
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2007—Elevators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Definitions

  • the present invention relates to a strap according to the preamble of claim 1. Furthermore, the invention relates to a connecting device for contacting a support belt according to the preamble of claim 7, and a method for producing a support belt according to the preamble of claim 13. Furthermore, the invention relates to an elevator system according to the preamble of claim 15.
  • the support straps generally comprise a plurality of strands of steel wires which receive the tensile forces to be absorbed by the support belt.
  • the strands are generally surrounded by a plastic jacket. The jacket protects the strands, for example, from mechanical wear, because the support straps are often guided over deflection points, in particular rollers.
  • the straps are within a conveyor a safety-critical component, since their failure or breakage can lead to a fall of the material to be conveyed. This can lead to considerable property damage and personal injury. For this reason, test units are used in conveyors, which in particular check the mechanical condition of the strands. Damage to the forces absorbing strands should thus be detected early, so that the strap can be replaced if damaged, to prevent failure of the conveyor.
  • the strands are surrounded by the electrically insulating jacket made of plastic.
  • a test of the condition of the strands is in Generally a contacting of a contact element with the strand required.
  • a current is passed through the strands with the aid of the contact element, which serves as a test current to determine the state of the strands.
  • other test methods that do not work with electricity, such. B. ultrasound, into consideration.
  • the DE 39 34 654 A1 shows a generic strap.
  • the ends of the strands are connected in pairs conductive with a bridge part, so that the strands of the support belt are electrically connected in series.
  • the strands of the support belt are connected via an ammeter to a voltage source, so that by means of the test current, which is passed through all the strands due to the electrical circuit in series, the state of the strands can be checked.
  • the DE 2 330 038 shows a system for contacting a flat cable.
  • the flat cable is clamped by an upper and a lower clamping piece.
  • Recesses are arranged on the lower clamping piece, can be performed by trained on a contact carrier lancing teeth.
  • the lancing teeth pierce through the sheath of the flat cable and thus come into contact with the strands.
  • the contacting of the strands using the lancing teeth is thus perpendicular to a longitudinal axis of the strands. Disadvantageously, it is necessary in this contacting that the lancing teeth pierce the jacket of the support belt.
  • the puncture of the shell by the lancing teeth can have the consequence that the lancing teeth deviate from the intended lancing direction when piercing the shell and thus no contact with the strand can be produced.
  • the lancing prongs may possibly also contact other, unforeseen strands or even no strand when the shell is pierced.
  • the WO 2005/094249 A2 and the WO 2006/127059 A2 show a system for contacting a support belt, in which the contact elements perpendicular to a longitudinal axis of the strand first pierce the jacket of the support belt and then penetrate into the strands. Disadvantageously, the contact elements can miss the strands due to the required piercing process through the jacket.
  • the WO 2005/095251 A1 shows a system for contacting a support belt, in which the strands are contacted perpendicular to a longitudinal axis of the strands of a contact element.
  • the contact elements pierce the jacket of the support belt.
  • the connecting device for contacting and fixing the support belt is also used as a load-securing element.
  • WO 2005/095252 shows a system for contacting a support belt.
  • the strap and the connection device should be easy to use and reliable and have low production costs.
  • a corresponding strap includes at least one strand of a, preferably electrically conductive, material, for. As steel, for receiving the forces to be absorbed by the strap and a, preferably electrically insulating, jacket which surrounds the at least one strand.
  • the carrying strap extends over a length which, for example, is dimensioned to connect, carry and drive a car of an elevator installation with a counterweight and, viewed in cross-section, has a width.
  • the support belt has at least one of its ends a recess which extends over the entire width and over a limited, relatively small length portion of the support belt extends.
  • the jacket of the support belt is now removed in the region of this recess at least on one side of the support belt, so that the strand or strands in the region of this recess are substantially exposed or exposed.
  • the at least one strand thus has no jacket perpendicular to a longitudinal axis formed by a center of a cross section of the at least one strand.
  • the metal, in particular steel, or steel wires, existing strand is surrounded by a sheath made of plastic.
  • the strand In the region of the recess, over a partial area of the casing, the strand is freed from the casing, so that a contact element can contact the strand directly without piercing the casing.
  • the strand At a contact side or a first side of the support belt, the strand is freed from the jacket.
  • no coat is present on the strand and at another, the first side opposite the second side of the support belt of the jacket is still present.
  • the contact element on the liberated from the shell part of the strand contact side
  • the strand is still surrounded by the insulating and protective sheath.
  • the strap in the direction of the longitudinal axis between two sections with a completely formed coat, in particular only partially, no coat on or the jacket of the support belt is in the direction of the longitudinal axis between two sections with a fully formed coat, in particular only partially removed in the area of this recess.
  • the recess is advantageously arranged in an end region, or in particular on each of the two ends of the support belt.
  • the recess in which the jacket is partially removed, is arranged at one end of the support belt or at respectively the two ends of the support means.
  • the support strap in the region of the recess on a first side of a plane which essentially tangentially intersects the strand and extends along the longitudinal axis does not have a jacket and has a jacket on a second side opposite the first side of the plane.
  • the carrying strap includes at least two strands, which are arranged side by side. These juxtaposed strands thus form a ribbon, or the strap.
  • the at least two strands now have no mantle above or below the plane which at least intersects the at least two strands tangentially and extends along the longitudinal axes or parallel thereto, and has a mantle below or above the plane.
  • the distance between the plane and the center lines, or the longitudinal axes, of the strands is between 0 and half the diameter of the strand.
  • the support belt embodied in this way has a recess in the casing, which extends over all the strands and which at least partially exposes the strands.
  • the exposed strands are now easily contactable, as they are exposed to the touch and still remain embedded in the sheath, whereby they are further defined in their mutual position.
  • the at least one strand is at least partially made of metal, e.g. As iron or steel, and / or the at least one jacket is at least partially made of an electric insulating material, such as textile fibers, plastic, such as polyurethane or rubber.
  • the sheath is multi-layered, at least two-layered, wherein a rear shell part is used substantially for positioning and holding the strand, or the strands and a front-side shell part fills interstices and at the same time forms a need-based structure, preferably longitudinal grooves.
  • the recess may in this case be arranged both in the rear-side jacket part or in the front-side jacket part.
  • a connection device for contacting a support belt relates to a support belt as described above.
  • the support belt includes at least one strand of a, preferably electrically conductive, material, for. As steel, for receiving the forces to be absorbed by the strap, and a, preferably electrically insulating, jacket which surrounds the at least one strand.
  • the connecting device for contacting the support belt includes at least one contact element, which can be brought into contact with the at least one strand of the support belt, wherein the strand of the support belt of the contact element in the region of a recess, without piercing the shell, can be contacted.
  • the connecting device is designed such that the at least one strand of the at least one contact element, at least partially perpendicular to a longitudinal axis of the at least one strand formed by the center of the cross section, can be contacted without piercing the shell.
  • the contact element can be contacted with the stranded wire in this connection device, without it being necessary to pierce the shell with the contact element.
  • a particularly accurate alignment, control and reliable contacting of the strand with the contact element is possible.
  • the at least one contact element is designed substantially rod-shaped, wherein one end of the at least one contact element, which is contactable with the at least one strand, is formed pointed or blunt.
  • the contact element is designed as a spring contact part.
  • the spring contact part is advantageously carried out with a pointed or blunt contact end, wherein the contact end may be integrally integrated in the spring contact part or may be attached as a contact head on the spring contact part.
  • the tip In a contact element with a pointed end, the tip is generally used to penetrate the tip into the exposed strand. In a contact element having a blunt end, in general, the contact element merely contacts the surface of the strand removed from the shell without the contact element penetrating into the strand.
  • the at least one contact element with the at least one strand can be contacted such that the at least one contact element touches the surface of the at least one strand and / or the at least one contact element penetrates into the at least one strand.
  • a compressive force on the at least one contact element can be applied for contacting the at least one contact element, under the pressure force, with the at least one strand.
  • the application of a compressive force on the contact element by means of an elastic element has the advantage that manufacturing inaccuracies or deformations on the support strap or the connecting device can be compensated by the elastic element. This ensures that at any time a sufficient pressure force is available, with which the contact element is brought into contact with the strand or is kept in contact and thus a reliable and secure contact is given.
  • the at least one contact element is connected to a plug connection or a plug connector.
  • This plug connection or connector strip is advantageously arranged on the connection device.
  • the contact element is designed in such a way that it electrically short-circuits the strands, which are exposed at one end of the support belt, and allows the support belt to be connected together to the test unit.
  • a state of the support belt can be monitored, as for example in the European application EP1275605 is explained.
  • a wear of the support belt is detected when a strand or part of the strand has worked through the shell, or the shell is abraded. This is determined by the fact that the electrically conductive wire touches a contact piece, such as a pulley, and thus the test unit can at least briefly determine a ground fault.
  • the at least one contact element is at least partially movable perpendicular to the line.
  • the strap of the connection device is positively and / or non-positively fixable.
  • the strap of components of the connecting device for. B. a bottom and top part or a bottom and top plate and at least one transverse part, are positively and non-positively fixed.
  • the contact elements in particular contact pins, manually or automatically, for. B. by means of a thread or a hydraulic or pneumatic drive, are moved in the connection device for contacting with the strands.
  • the subsequent removal of the shell of the strands has the advantage that the strap can be inexpensively manufactured in a conventional manner and only then partially removed at the locally necessary portions of the support belt of the jacket for contacting the contact element with the strand.
  • the shell is partially above or below a plane which is substantially tangent to the strand or cuts the strand, removed from the at least one strand.
  • the jacket is removed mechanically, chemically or thermally.
  • mechanical, chemical or thermal removal of the jacket Mechanically, this can be done for example by scraping, planing, filing, drilling, sawing, grinding, cutting or milling.
  • a chemical removal of the shell is dissolved or etched, for example, by appropriate solvents or acids.
  • the jacket is removed thermally, it becomes local heated above its melting point, so that it passes into the liquid state and can flow through it.
  • evaporation of the jacket for example chemically or thermally, is also possible.
  • An alternative embodiment of a system for contacting a support belt comprises a strap with at least one strand of a, preferably electrically conductive, material, for. As steel, for receiving the forces to be absorbed by the strap and a, preferably electrically insulating, jacket which surrounds the at least one strand.
  • the system further comprises a connection device for fixing the support belt with at least one movable contact element. This can be brought into contact with the at least one strand in a direction of a longitudinal axis of the at least one strand formed by a center of a cross section on an end face of the support belt.
  • the at least one contact element advantageously has a greater extent in a first direction perpendicular to a longitudinal axis of the at least one strand formed by the center of the cross section than in a second direction perpendicular to the longitudinal axis, which is perpendicular to the first direction.
  • the extension of the contact element in the first direction is for example 1 to 12 times greater than the extension of the contact element in the second direction.
  • the contact element is thus formed flat. It is a contact blade. This has the advantage that upon penetration of the contact blade in the front side of the support belt in the direction of the first direction of the flat contact blade, due to their large extension in the first direction, a large coverage for the strand is present and consequently a Fehlmastechnik is practically impossible.
  • For the exact alignment of the contact blade to the strand thus essentially the orientation of the contact blade in the direction of the support belt or end face of the second direction of the contact element is crucial.
  • this is at least one contact element as a contact blade, preferably with a point for contacting the at least one strand, educated.
  • the contact blade has a tip or edge on a narrow side. At this point or edge of the contact blade is inserted at the front of the strap in the strap.
  • a contact blade is generally the plane of the contact blade perpendicular to the plane of the belt formed as a flat strap.
  • An elevator system advantageously comprises a previously described carrying strap and a connecting device described in this application for contacting a support belt.
  • a first system 8 for contacting a support belt 1 is shown.
  • the carrying strap 1 to be contacted comprises twelve strands 2 made of steel, which are surrounded by a jacket 3 ( Fig. 1 to 3 ).
  • the jacket 3 is made of electrically insulating plastic and has at the top longitudinal grooves 30 in the direction of a longitudinal axis 31 of the strands 2.
  • the carrying strap 1 extends over a length L.
  • the length L is dimensioned to connect a car of an elevator installation with a counterweight and to carry and drive the same, as for example in the US Pat Fig. 13 and Fig. 14 is shown.
  • the length L of the support belt depends on the travel distance of the elevator car and its suspension type.
  • Typical lengths of carrying straps are in the range of 15 to 120 meters, whereby depending on a building height and corresponding travel distances also longer lengths are possible.
  • the support belt viewed in cross-section, has a width b. Usual widths b of carrying straps are in the range of 20 to 120 millimeters, although other dimensions are possible as well.
  • the support belt further has at least one of its ends or in the end region near the end of the support belt on a recess 12 which extends over the entire width b and over a limited, relatively small length portion 1, the support belt 1. In one example, one dimension of the length I is about 5 to 20 millimeters.
  • the recess 12 is only on a first side 7.1 of the support belt above a level 7 ( Fig.
  • the support belt 1 is contacted by means of a connecting device 4 by means of advantageously movable contact elements 5 of these ( Fig. 3 ).
  • the connection device 4 comprises a bottom part 13 and a cover part 14 (FIG. Fig. 1 to 3 ).
  • the bottom part 13 is provided with a longitudinal groove 25 whose width corresponds to the width b of the support belt 1.
  • the support strap 1 can thus be held in a form-fitting manner in the longitudinal groove 25 of the bottom part 13 in the transverse direction.
  • the ceiling part 14 is advantageously made of electrically insulating material such as plastic, ceramic material, etc.
  • the insertable in the ceiling part 14 contact elements 5 to each other.
  • the contact pins themselves may be provided with an outer insulating jacket.
  • the ceiling part 14 may be further made of electrically conductive material.
  • Verschraubungsbohrept 28 are arranged without thread.
  • the ceiling part 14 has at the bottom longitudinal grooves 30 ', which are formed complementary to the longitudinal grooves 30 at the top of the support belt 1.
  • the support belt 1 can thus be inserted at the bottom in the longitudinal groove 25 of the bottom part 13 and at the top of the support belt 1 engage the respective complementary aligned longitudinal grooves 30 ', 30 of the ceiling portion 14 and the support belt 1 into each other when the ceiling portion 14 on the Bottom part 13 is arranged, or joined together ( FIGS. 2 and 3 ).
  • the ceiling part 14 is fixed to the bottom part 13 by means of four screws 15.
  • the screws 15 are inserted into the unthreaded screw holes 28 and the end of the screws 15 are inserted and screwed into threaded screw holes 32 on the bottom portion 13, respectively.
  • the support belt 1 is thus positively and non-positively connected to the bottom part 13 and the ceiling part 14 and fixed by means of the longitudinal groove 25 and the longitudinal grooves 30 ', 30 in the ceiling part 14 and at the top of the support belt 1.
  • the existing plastic jacket has elastic properties.
  • the cross-sectional area of a cavity formed by the longitudinal groove 25 and the longitudinal grooves 30 'on the ceiling part 14 is smaller than the cross-sectional area of the support belt 1.
  • the shell 3 is elastically compressed, so that a frictional connection between the support belt 1 and the bottom part 13 and the ceiling part 14 consists.
  • connection device 4 By means of the longitudinal grooves 30 'of the cover part 14 and the longitudinal grooves 30 of the support belt 1, the connection device 4, or their contact elements 5 is exactly aligned with the support belt 1 or the strands 2 embedded in the support belt.
  • the ceiling part 14 is provided with twelve threaded holes 16, corresponding to the number of steel strands 2 used for the contact elements 5.
  • the contact elements 5 are formed as contact pins 10 with a tip 11 ( Figure 5 ).
  • a thread not shown, is formed on the outside of the contact pins 10.
  • the contact pins 10 can thereby be screwed into the threaded bores 16 of the ceiling part 14 and brought into contact with the strands 2 of the support belt 1.
  • the contacting of the twelve strands 2 with the twelve contact pins 10 can be made to the effect that the tips 11 of the contact pins 10 touch the strands 2 only on the surface or contact side and thereby contact and thus an electrical connection between the contact pins 10 and the strands 2 is produced.
  • the tips 11 of the contact pins 10 are pressed into the strands 2. Instead of tips also otherwise shaped ends, such as a flat support, can be used.
  • the contact pins 10 themselves can be formed in various embodiments.
  • the contact pin 10 in one piece from a metal rod, whose end is formed to the flat top 11.
  • the contact pin 10 is in several parts.
  • a rod 33 is slidably disposed.
  • the tip 11 is formed.
  • a spring 9 is arranged between the tube 6 and the rod 33.
  • the spring 9 has the effect that there is a compressive force in the longitudinal direction between the tube 6 and the tip 11.
  • the tube 6, which is provided with a male thread, not shown, which is arranged in the threaded bore 16 of the cover member 14, are pressed by means of the spring 9 under a spring pressure on the strand 2, as in Fig. 5c schematically visible.
  • This spring pressure force causes improved contact between the tip 11 and the strand 2 of the support belt.
  • a contact pin may be flat, such as a contact blade or contact blade, or oval or polygonal pins may be used.
  • the contact elements 5 as a common contact surface all or a portion of the strands 2 touch each other when an electrical connection between each or all strands is desired.
  • connection device 4 for contacting the support belt 1 is further provided with a connector strip 38.
  • the connector strip 38 is applied in the example shown on the ceiling part 14 and electrically conducting to the respective contact pins 5, 10 ( Fig. 2 ) connected.
  • a connection to a test unit 23 (FIG. Fig. 12 and 13 ) can be easily made.
  • the recess 12 can, as in the Fig. 1 can be seen at right angles, mounted transversely to the longitudinal direction of the support belt 1. Alternatively, the recess 12 at an angle ⁇ , as in Fig. 6 represented, may be arranged. As a result, contact pins can be distributed over a longer distance, for example.
  • the arrangement of the recess is variable, so the recess 12 can also on several sections, as in Fig. 6b shown, distributed or a recess 12 may at the end of the support belt 1, as in Fig. 6a represented, may be arranged.
  • the in the Fig. 6 to 6c illustrated strap 1 has in the region of the recess 12 on the first side 7.1 of the level 7 ( Fig. 6c ), which intersects the strand 2 in the example shown, no coat 3 and he has on the opposite second side 7.2 of the level 7 continues to have a coat.
  • the recesses 12 are in this case near one end of the support means ( Fig. 6 and 6b ) or directly at the end of the suspension element ( Fig. 6a ) arranged
  • the support strap 1, or the strand 2 or the strands of the support belt can be enclosed with a one-piece jacket 3.
  • the sheath 3 of the support belt 1, as in Fig. 6c can be seen, also be multi-layered.
  • the illustrated jacket 3 is constructed in two layers.
  • a rear casing part 3.1 is used essentially for positioning and holding the stranded wire, or strands 2, and a front-side casing part 3.2 fills interstices and insulates the strands 2 from each other.
  • the front-side casing part 3.2 determines a needs-based structure.
  • the longitudinal grooves 30 In the example shown, the longitudinal grooves 30.
  • the connecting device 4 for contacting the wire 2 consists essentially of a bottom plate 26, a ceiling plate 27 and out two transverse parts 29.
  • a recess 12 of the shell 3 is formed on the support belt 1, in a manner analogous to the first embodiment.
  • the recess 12 is seconded near the end of the support belt and it extends over the entire width of the support belt.
  • the recess 12 is further divided into two sections, whereby two recesses 12 are formed.
  • two threaded screw holes 32 are formed at both ends.
  • the Gewindeverschraubungsbohrept 32 of the cross member 29 serve to be screwed into these four screws 15 for fixing the ceiling plate 27 to the cross member 29 and by means of four further screws 15, the bottom plate 26 is screwed to the two cross members 29.
  • the bottom plate 26 and the ceiling plate 27 are provided for this purpose with four screw holes 28.
  • the two transverse members 29 are arranged corresponding to a distance of the two recesses 12.
  • the ceiling plate 27 is formed in a longitudinal section substantially U-shaped, or with angled legs. At the end of the legs of the U-shaped cross-section, in a manner analogous to the cover part 14 of the first embodiment, longitudinal grooves 30 'are formed ( Fig. 9 ). The longitudinal grooves 30 'engage in the complementarily formed longitudinal grooves 30 at the top of the support belt ( 10 and 11 ). As a result, the carrying strap 1 is held in a form-fitting manner in the connecting device 4 according to this further embodiment.
  • the support strap 1 is clamped non-positively in this embodiment, because in an analogous manner to the first embodiment, the cross-sectional free surface between the bottom plate 16 and the longitudinal grooves 30 'is smaller than the cross-sectional area of the support belt.
  • the contact elements 5 are formed as U-shaped spring contact parts 35.
  • An upper leg of the spring contact parts 35 is clamped in a clamping groove 34 of the cross member 29 and thus connected to this and positioned.
  • At the end of the lower leg of the spring contact parts 35 each have a contact bead 36 is present.
  • the contact bead 36 is contacted with the strand 2 of the support belt 1 ( Fig. 11 ).
  • the connecting device 4 has twelve spring contact parts 35, corresponding to the twelve strands 2 of the support belt 1, on. Each strand 2 of the support belt is thus associated with a spring contact part 35.
  • the contact elements 5, and the spring contact part 35 may be performed on a common or multiple separate contact plates, whereby, for example, an electrical connection of all strands 2 or sub-groups of strands 2 can be easily performed.
  • a connector, or connector strip 38 as in Fig. 4 presented to provide.
  • the plug connection is in each case electrically connected to each individual spring contact part 35.
  • the spring contact parts 35 are positioned over the cross members 29 on the ceiling plate 27.
  • the ceiling plate 27 is in turn aligned over the longitudinal grooves 30 'exactly to the longitudinal grooves 30 of the support belt 1 and the strands to be contacted 2 are within the support belt 1, and, the associated shell just as accurately aligned with the longitudinal grooves 30 of the support belt 1.
  • the spring contact parts 35 are necessarily aligned with the strands 2 and can be easily contacted.
  • the illustrated spring contact parts 35 are provided with a contact bead 36.
  • This is a substantially flat embodiment of a contact end, which is integrated directly into the spring contact part 35.
  • the contact end is made pointed or blunt, whereby such a contact end can be integrally integrated in the spring contact part 35 or can be attached as a contact head on the spring contact part 35. Such attachment can be done for example by riveting.
  • the connecting device 4 for contacting the strands 2 comprises a base plate 20 and a clamping plate 21.
  • the clamping plate 21 is provided with longitudinal grooves 30 ', which advantageously coincide with longitudinal grooves 30 of the support means 1.
  • the strands 2 integrated in the suspension element 1 are advantageously arranged in a fixed geometric association with the longitudinal grooves 30 of the suspension element 1.
  • the base plate has a contact guide 17.
  • the clamping plate 21 is aligned over the longitudinal grooves 30 'exactly to the longitudinal grooves 30 of the support belt, and the base plate 20 in turn is aligned to the clamping plate 21 by means of the arrangement of the clamping screws 18, as a direct result, the integrated contact guide 17 in the base plate exactly on the arranged in the strap 1 strands 2.
  • the contact elements 5 are contact blades 49 in this example.
  • the contact blades 49 are flat contact elements 5.
  • the number of contact blades 49 depends on the number of wires 2 used.
  • the contact blades 49 are aligned side by side with their facing flat sides. These contact blades 49 are inserted through the contact guide 17 and allow electrical contacting of the strands 2 by tips or cutting which is pressed into the end of the strand 2 and the adjacent region of the shell 3 become.
  • a contact carrier 19 encloses and holds the contact blades 49 in their retracted position.
  • the contact carrier 19 is fastened in the example shown by means of retaining screws 22 on the base plate 20.
  • the contact carrier 19 and the contact guide 17 are preferably made of electrically insulating material, such as plastic or ceramic material.
  • the contact blades 49 with an insulating material (not shown) to be sheathed.
  • the contact blades 49 may be provided with an insulating ceramic coating and only end portions of the contact blade 49, which are provided for contacting the stranded wire 2 or for connecting power strips or cables, are designed without such a coating.
  • the contact carrier 19 may be designed directly as a plug connection 38, or it may also be connected to other units, for example a test unit 23, for example by means of soldered connections and electrical lines (not shown). This connection can also be carried out in a particularly simple manner by means of the plug connection 38 arranged or integrated on the contact carrier 19. A mating connector must then only be plugged into the connector 38.
  • the contact elements 5 can be arranged in one or more rows. In the examples according to Fig. 1 to 3 and 9 to 11 two-row arrangements of contact elements 5 are shown. The contact elements 5 are in this case strung together offset, so that in each case two adjacent strands 2 are contacted by contact elements 5 of different rows of contacts. This is advantageous because therefore a larger gap, or distance between the individual contact elements 5 is formed.
  • clamping plate 21 may be provided with additional transverse grooves for better clamping of the support belt 1.
  • groups of contact elements 5 are formed, which electrically connect certain groups of strands 2 or all strands 2.
  • a system 8 for contacting the support belt 1 with the corresponding connection device 4 and an enclosed strap portion is enclosed in a moisture-proofing capsule (not shown) or a protective compound such as silicone surrounds this system.
  • Fig. 12 is a test unit 23 by means of power lines 24 with the system shown in simplified form 8, or the connection device 4, shown for contacting the support belt 1 at both ends of the support belt, thus at both ends of the support belt, a connection device is arranged.
  • the test unit 23 is an electronic circuit which is at an interruption of the test current through the strands 2, because at both ends of the support belt. 1 in each case a system 8 is arranged, a warning signal, for example an optical or acoustic signal triggers.
  • the individual strands 2 can, depending on Verschaltungsart, individually switched and evaluated or it is also possible to connect the individual strands 2 of the support belt 1 in series, so that several strands can be checked and monitored by means of the test current.
  • test current can be evaluated. From this test unit many other switching stages can be controlled. For example, in the event of damage to one or more of the strands 2, an elevator installation can be automatically switched off or a warning signal for the users of the elevator installation can be triggered.
  • test unit 23 other signals such as ultrasound or light may be used to test the condition of the strands 2, depending on the type of strand 2 used, instead of electrical current.
  • the test unit allows the strand 2 to determine the material thickness and thus the state of wear or defects or cracks and to locate.
  • the number, size and distribution of cracks in the strands 2 can be determined.
  • Fig. 13 is the system 8, or the connection device 4, for contacting the support belt 1 and the corresponding support strap 1 installed in an elevator system 40.
  • the elevator system 40 includes at least one elevator car 41, a counterweight 42 and the support belt 1 and a traction sheave 43 with associated drive motor 44.
  • the traction sheave 43 drives the suspension element 1 and thus moves the elevator car 41 and the counterweight 42 against each other.
  • the drive motor 44 is controlled by an elevator control 45.
  • the cabin 41 is designed to receive people and / or goods and to move between floors of a building transport. Cabin 41 and counterweight 42 are guided along guides. In the example, the cabin 41 and the counterweight 42 are connected to the drive pulley 43 suspended.
  • the carrying strap 1 runs with a higher speed via the drive 43, 44 in accordance with a transfer factor.
  • the wrap factor is 2: 1.
  • the length L of the support belt 1 corresponds in this embodiment, about a double maximum travel distance of the cabin plus design-related additional lengths.
  • the support means, or the support strap 1 is in this case fastened by means of a first support means attachment 47 in the building. It is further guided via a support roller 46 of the cab 41 to the traction sheave 43 and runs from there to the counterweight 42 where it is in turn deflected by means of a counterweight-side support roller 46 and guided to a second support means attachment 48.
  • the Tragstoffbefest Trent 47, 48 conduct carrying forces of the support belt 1 into the building.
  • a loose end 1.1 of the support belt 1 is provided with the system 8, or the connection device 4, for contacting the support belt 1.
  • such systems 8, or connecting devices 4 are attached to both ends of the support belt 1.
  • These connection devices 4 are arranged in the areas of the support means ends 1.1. These areas are no longer burdened by the carrying capacity in the carrying strap 1, since this carrying capacity is already passed in advance in the building.
  • the connection device 4 of the second support means attachment 48 is provided with a plug connection 38. In this connector 38 bridge elements 39 are connected, which connect strands of the support belt 1 together electrically.
  • the connecting device 4 of the arranged at the other end of the support means 1 first support means 47 is connected in the example, by means of power lines 24 to the test unit 23, which test unit 23 performs the necessary monitoring and any measures directly in the elevator control 45 causes or generates corresponding service requirements.
  • the Connecting device 4 of the first support means attachment 47 may be provided with a plug connection 38, which is advantageously integrated directly into the cover part 14 of the connection device 4, as in Fig. 4 exemplified.
  • the test unit 23 can be connected directly to this connection device 4, using a corresponding plug.
  • the elevator installation 40 shown is exemplary. Other cap factors and arrangements are possible.
  • the system 8, or the connecting device 4, for contacting the support belt 1 is then arranged according to the placement of the support means fastenings 47, 48.
  • the test unit 23 can also, as in Fig. 12 shown schematically, both ends of the support belt 1 contact.
  • Fig. 14 is another system 8, or connecting device 4, shown for contacting the support belt 1 and the corresponding support strap 1 in an elevator system 40.
  • the elevator system 40 is basically as in Fig. 13 explained.
  • the test unit 23 checks whether the strap 1, or one of its electrically conductive strands has an electrically conductive contact to a deflection roller 46 or traction sheave 43. Some of the pulleys and traction sheave are grounded to E. Of course, further contact points such as contact brushes or the like along the support belt 1 may be arranged on a case-by-case basis. If the test unit establishes a contact between the strand 2 and one of the contact points or rollers 46, 43, it can be concluded from the duration of the contact in the manner of wear, as in our application EP1275605 explained.
  • the opposite second end of the support belt can be left without contact elements. It's just like that to attach that the strands have no electrical contact with surrounding elevator, or continents.
  • FIGS. 15 and 16 a further embodiment of the connecting device 4 is shown, as in the elevator system according to Fig. 14 is used.
  • the support belt 1 has at one end the recess 12, which extends on one side of the support belt 1 over the entire width thereof.
  • the connection device 4 includes the ceiling part 14, the bottom part 13 and contact element 5.
  • the bottom part 13 includes positioning 13.2, which allow accurate positioning of the contact element 5 in the bottom part.
  • Base part and ceiling part are held together by means of fastening elements. These fasteners are either screwed, spring clips or self-locking, integrated directly into the housing parts compounds.
  • the ceiling element 14 has a suitable structure to in cooperation with the bottom part 13 and the contact element 5, as well as the strap 1 a contact make the reeds 5.3 to the strands 2.
  • pressure points 13.3 each press a contact tongue 5.3 onto two strands 2.
  • the contact tongues 5.3 are provided with an end-side bend.
  • the contact tongue 5.3 is increasingly pressed into the strand 2 and a form of the contact tongue or the bottom part a spring effect is achieved, which holds the contact tongue in elastic contact with the strand 2.
  • a pressure point per contact tongue and a single strand can of course also be provided. This depends inter alia on a dimension of the strand. In the example shown according to Fig. 16 a strand diameter is about 1.5 to 2.0 millimeters. If a single strand 2 'with a correspondingly larger diameter were used instead of two such strands 2, the same could be used
  • connection device 4 can be used, as in Fig. 16 shown in dashed lines.
  • connection device 4 closes all strands 2 together electrically and connecting tongues 5.4 allow a simple connection of the contact element 5 to the test unit 23, as in FIG Fig. 14 seen.
  • the contact element 5 may be designed so that, for example, instead of a short-circuiting of all strands, only groups of strands are interconnected.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Belt Conveyors (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Structure Of Belt Conveyors (AREA)

Claims (15)

  1. Courroie de traction (1) pour une installation d'ascenseur, dans laquelle la courroie de traction a une longueur (L) avec deux extrémités (1.1) et présente, vue en section transversale, une largeur (b), une première face (7.1) et une deuxième face (7.2) opposée à la première face (7.1), faces (7.1, 7.2) qui s'étendent sur la largeur (b) de la courroie de traction, la courroie de traction comprenant:
    - au moins une lisse (2) destinée à reprendre une fraction de la charge à porter par la courroie de traction, lisse (2) qui s'étend sur la longueur (L) de la courroie de traction;
    - une enveloppe (3) en un matériau électriquement isolant, qui entoure la lisse (2), caractérisée en ce que la courroie de traction (1) présente à au moins une des deux extrémités (1.1) un évidement (12), qui s'étend sur toute la largeur (b) sur la première face (7.1) et sur une partie limitée (I) de la longueur de la courroie de traction (1), en ce que l'enveloppe (3) est enlevée dans la région de l'évidement (12), et en ce que la lisse (2) est découverte dans la région de l'évidement (12) au moins sur la première face (7.1) de la courroie de traction.
  2. Courroie de traction selon la revendication 1, caractérisée en ce que, dans la région de l'évidement (12), la courroie de traction (1) ne présente pas d'enveloppe (3) sur la première face (7.1) d'un plan (7) qui est essentiellement tangent à la lisse (2) ou qui coupe la lisse (2) et présente une enveloppe (3) sur la deuxième face (7.2) du plan (7).
  3. Courroie de traction selon la revendication 1 ou 2, caractérisée en ce que la lisse (2) se compose principalement d'un matériau électriquement conducteur, de préférence de fils d'acier, et l'enveloppe électriquement isolante (3) se compose de fibres textiles, de matière plastique et/ou de caoutchouc.
  4. Courroie de traction selon la revendication 3, caractérisée en ce qu'au moins deux lisses (2) sont disposées l'une à côté de l'autre et l'enveloppe (3) entoure ensemble lesdites au moins deux lisses (2) et sont électriquement isolées l'une de l'autre et lesdites au moins deux lisses (2) sont découvertes dans la région de l'évidement (12).
  5. Courroie de traction selon une ou plusieurs des revendications précédentes, caractérisée en ce que l'enveloppe (3) est réalisée en au moins deux couches, dans laquelle une partie d'enveloppe arrière (3.1) est utilisée essentiellement pour le positionnement de la lisse ou des lisses (2) dans le processus de fabrication, et une partie d'enveloppe avant (3.2) remplit des espaces entre les lisses et forme en même temps une structure utilisable, de préférence des stries longitudinales (30), dans laquelle la première face (7.1) est disposée à la partie d'enveloppe avant (3.2) ou à la partie d'enveloppe arrière (3.1).
  6. Courroie de traction selon une ou plusieurs des revendications précédentes, caractérisée en ce que l'évidement (12) avec l'enveloppe (3) enlevée est disposée, dans la direction d'un axe longitudinal (31), entre deux segments partiels avec une enveloppe (3) complètement formée, ou en ce que l'évidement (12) avec l'enveloppe (3) enlevée est disposé à une extrémité de la courroie de traction (1) dans la direction d'un axe longitudinal (31).
  7. Dispositif de raccord (4) pour mettre en contact une courroie de traction (1), qui est réalisée selon l'une quelconque des revendications précédentes 1 à 6, dans lequel le dispositif de raccord (4) comporte au moins un élément de contact (5) qui peut être mis en contact avec au moins une lisse (2) de la courroie de traction (1), dans lequel la lisse (2) de la courroie de traction (1) peut venir en contact avec l'élément de contact (5) dans la région de l'évidement (12) sans perforer l'enveloppe (3), et dans lequel l'élément de contact (5), qui peut être mis en contact avec ladite au moins une lisse (2), est réalisé essentiellement sous la forme d'une pièce de contact à ressort profilée (35), dans lequel l'extrémité de contact est intégrée d'une seule pièce dans la pièce de contact à ressort (35) ou est appliquée comme tête de contact sur la pièce de contact à ressort (35).
  8. Dispositif de raccord (4) selon la revendication 7, caractérisé en ce que l'élément de contact (5) est réalisé avec une extrémité de contact pointue ou épointée, dans lequel l'élément de contact (5) touche uniquement une surface de la lisse (2) ou dans lequel l'élément de contact (5) pénètre partiellement dans la lisse (2).
  9. Dispositif de raccord (4) selon la revendication 7 ou 8, caractérisé en ce qu'au moins un élément de contact (5) est associé à chaque lisse (2) et ces éléments de contact (5) sont disposés en une ou plusieurs rangées dans le dispositif de raccord, ou en ce qu'un élément de contact (5) s'étend en commun au-dessus de toutes les lisses (2) et met ces lisses en court-circuit électrique dans la région de l'évidement (12).
  10. Dispositif de raccord (4) selon une ou plusieurs des revendications 7 à 9, caractérisé en ce qu'une force de pression peut être appliquée sur l'élément de contact (5) par un ressort (9), ou en ce que l'élément de contact (5) est lui-même élastique.
  11. Dispositif de raccord (4) selon une ou plusieurs des revendications 7 à 10, caractérisé en ce que le dispositif de raccord (4) est doté d'une structure de positionnement, de préférence de stries longitudinales (30'), structure de positionnement qui coopère avec une structure utilisable de la courroie de traction, de préférence des stries longitudinales (30), pour l'alignement du dispositif de raccord sur la courroie de traction.
  12. Dispositif de raccord (4) selon une ou plusieurs des revendications 7 à 11, caractérisé en ce que l'élément de contact (5) est relié à une barrette de connexion (38) disposée sur le dispositif de raccord (4) ou à un connecteur (38.1), dans lequel l'élément de contact (5) et la barrette de connexion (38) ou le connecteur (38.1) sont de préférence intégrés dans une platine et cette platine présente des pistes conductrices et/ou des composants électroniques éventuellement nécessaires.
  13. Procédé de fabrication d'une courroie de traction (1) selon l'une quelconque des revendications 1 à 6 pour une installation d'ascenseur, comportant les étapes suivantes:
    - réaliser au moins une lisse (2), et
    - entourer la lisse (2) avec une enveloppe (3),
    - enlever l'enveloppe (3) dans la région d'un évidement (12) sur une largeur totale (b) de la courroie de traction, de telle manière que la lisse (2) soit découverte dans la région de l'évidement (12), au moins sur une première face (7.1) de la courroie de traction.
  14. Procédé selon la revendication 13, caractérisé en ce que l'on enlève l'enveloppe (3) dans la région de l'évidement (12) par des moyens mécaniques, chimiques ou thermiques.
  15. Installation d'ascenseur avec une cabine d'ascenseur (41) et un contrepoids (42), qui sont reliés, portés et entraînés au moyen d'une courroie de traction (1), dans laquelle la courroie de traction (1) est réalisée selon l'une quelconque des revendications 1 à 6 et l'installation d'ascenseur comporte en outre un dispositif de raccord (4) destiné à la mise en contact de la courroie de traction (1) selon l'une quelconque des revendications 7 à 12.
EP09748338A 2008-11-19 2009-11-09 Courroie de traction Not-in-force EP2346768B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09748338A EP2346768B1 (fr) 2008-11-19 2009-11-09 Courroie de traction

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP08169452 2008-11-19
PCT/EP2009/064812 WO2010057797A1 (fr) 2008-11-19 2009-11-09 Courroie de traction
EP09748338A EP2346768B1 (fr) 2008-11-19 2009-11-09 Courroie de traction

Publications (2)

Publication Number Publication Date
EP2346768A1 EP2346768A1 (fr) 2011-07-27
EP2346768B1 true EP2346768B1 (fr) 2013-01-09

Family

ID=40475094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09748338A Not-in-force EP2346768B1 (fr) 2008-11-19 2009-11-09 Courroie de traction

Country Status (12)

Country Link
US (1) US8640828B2 (fr)
EP (1) EP2346768B1 (fr)
KR (1) KR20110084422A (fr)
CN (1) CN102216193B (fr)
AU (1) AU2009317388B2 (fr)
BR (1) BRPI0922055A2 (fr)
ES (1) ES2402542T3 (fr)
HK (1) HK1157718A1 (fr)
MX (1) MX2011005070A (fr)
MY (1) MY154186A (fr)
RU (1) RU2518399C2 (fr)
WO (1) WO2010057797A1 (fr)

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Also Published As

Publication number Publication date
KR20110084422A (ko) 2011-07-22
CN102216193B (zh) 2013-05-08
EP2346768A1 (fr) 2011-07-27
MX2011005070A (es) 2011-05-25
AU2009317388A1 (en) 2010-05-27
ES2402542T3 (es) 2013-05-06
CN102216193A (zh) 2011-10-12
RU2011124920A (ru) 2012-12-27
HK1157718A1 (en) 2012-07-06
AU2009317388B2 (en) 2016-07-07
WO2010057797A1 (fr) 2010-05-27
US20110220438A1 (en) 2011-09-15
US8640828B2 (en) 2014-02-04
MY154186A (en) 2015-05-15
BRPI0922055A2 (pt) 2015-12-22
RU2518399C2 (ru) 2014-06-10

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